HIGH PERFORMANCE WOOD PANEL

02

THE NEW GENERATION

Imagine a world of new and exciting possibilities for a wood based panel product, enabling its use in applications and environments that could not previously be contemplated.

Imagine the positive implication if the raw material for the panel was modified to give outstanding dimensional stability and durability using a non-toxic environmentally compatible process.

Imagine MEDITE® TRICOYA® EXTREME.

MEDITE TRICOYA EXTREME is a completely new, high performance, wood based panel product. It demonstrates outstanding durability and dimensional stability in the most extreme and challenging environments – exterior as well as interior, wet and high moisture, applications. The product uses proprietary acetylated wood technology and a modified fibreboard manufacturing process to create a wood panel with outstanding durability and stability.

MEDITE TRICOYA EXTREME has been jointly developed between MEDITE EUROPE and Tricoya Technologies and is made using a patented acetylation technology.

MEDITE EUROPE DAC is owned by Coillte, a fully integrated forest products company based in Ireland.

MEDITE has led the market in technical innovation, and MEDITE products are recognised as the benchmark for quality, consistency and performance.

THE ACETYLATION PROCESSMEDITE TRICOYA EXTREME was developed by challenging the most fundamental reason for wood swelling: water absorption onto hygroscopic wood fibres due to the presence of hydroxyl groups. The hydroxyl groups (water loving sites) can bind or release water molecules causing wood to swell or shrink. It is also believed that the digestion of wood by enzymes initiates at the free hydroxyl sites - which is one of the principal reasons that wood is prone to decay.

Accsys’ proprietary technology used to produce Tricoya wood elements is based on wood acetylation, a process that has been studied by scientists around the world for more than 80 years.

Acetylation effectively changes the free hydroxyls (represented as OH in the chemical formula below) within the wood into acetyl groups. This is done by reacting the wood with acetic anhydride, which comes from acetic acid (known as vinegar when in its dilute form).

When the free hydroxyl group is transformed to an acetyl group, the ability of the wood to absorb water is greatly reduced, rendering the wood more dimensionally stable and, because it is no longer digestible, extremely durable.

Acetyl groups are naturally present in all wood species. The acetylation process therefore adds nothing to the wood that does not already naturally occur within it, resulting in an end product with no added environmental toxins.

The effect of altering the wood’s chemical structure is to create a new product that is modified right through the cross section. By contrast, other wood preservative treatments merely insert chemicals (such as oils, ammonia or metal compounds) into the wood, improving durability but not dimensional stability.

03

Woodelements

Aceticanhydride Tricoya® Acetic Acid

04

PERFORMANCE COMES NATURALLYMany of the benefits observed in Accoya® solid acetylated wood, including enhanced dimensional stability, durability and fungal resistance hold true for MEDITE TRICOYA EXTREME.

The functionality and versatility of wood-based composite panels give them universal appeal. When properties such as high strength, light weight, good insulation, excellent machinability and ease in use are required, MEDITE MDF is the ideal choice for many applications.

Although timber and wood panels are widely used as building materials, they naturally have some shortcomings. Notably, dry wood is inclined to swell and shrink in response to changes in moisture in the atmosphere. Wood is also susceptible to degradation due to attack by microorganisms, like fungi, and is not therefore naturally durable.

These shortcomings have limited the use of solid wood and in some cases wood panels, in many markets and applications. Poor durability and dimensional stability will, for example, cause wood panels to crack and delaminate over time.

The good news is that MEDITE TRICOYA EXTREME has been independently tested by leading institutes around the world and has demonstrated superior dimensional stability and class 1 durability, even in changing weather conditions, meaning it may now be used in situations and applications where normal wood panels cannot.

MEDITE ® TRICOYA® EXTREME

Stone-fibre panel

Fibre-cement panel

HPL - Compact

Okoume plywood

Finn. Birch plywood

MEDITE ® TRICOYA® EXTREME

Stone-fibre panel

Fibre-cement panel

HPL - Compact

Okoume plywood

Finn. Birch plywood

Thickness swell

% after water immersion at ± 20°C % (mm/m) at ± 50% RH change

Linear moisture movement

0 1 2 3 4 5 6 7 8 0 0.1 0.2 0.3 0.4 0.5

05

Independent research concludes that MEDITE TRICOYA EXTREME carries a durability class of 1 (under EN350-2). This is a very high durability, equivalent to teak and more durable than oak. We work together with the following renowned independent research institutes: Building Research Establishment (BRE) from the United Kingdom, the Fraunhofer institute for Wood Research from Germany and SP Wood Technology from Sweden.

KEY PRODUCT APPLICATIONS- Façade cladding / siding

- Fascia and soffit panels and other secondary exterior applications

- Window components

- Door components and door skins

- Wet interiors, including wall linings in swimming pools, bathrooms, wet rooms and changing rooms

- Speciality furniture including lockers, cubicles, chairs and tables

- Play frames, exterior garden furniture, planters, fencing and fittings

- Signage

DURABILITY TESTMEDITE TRICOYA EXTREME excels in outdoor environments and testing has shown it does not crack or delaminate and remains stable in all dimensions.

Freeze/thaw cycles:

- 2 to 3 hours freezing at –20°C - 2 to 3 hours in water of +20°C

Wet/dry cycles:

- 18 hours storage in water (> 5°C) - 6 hours storage at 60°C / 20% RH

Before 25 cycles After 25 cycles

Photography of MEDITE Photography of MEDITE TRICOYA EXTREME TRICOYA EXTREME showing thickness of showing thickness of panel before 25 cycles panel after 25 cycles

BUILT IN SUSTAINABILITYMEDITE TRICOYA EXTREME is FSC® certified

06

0307

THE FINISHED ARTICLEMEDITE TRICOYA EXTREME can be cut, coated, coloured, sanded, glued, machined and fastened the same as any other high performing wood fibreboard – allowing users all the freedom normally associated with traditional MDF but in extreme applications.

Moisture ContentMEDITE TRICOYA EXTREME is supplied with a moisture content of between 3% - 5%. An indicative measurement of the moisture content should be made before installation. If a measurement shows a moisture content of 8% or more, this may indicate the presence of “free water” and the MEDITE TRICOYA EXTREME should be allowed to dry before processing, gluing or coating.

CoatingConventional water-based paint coatings may be used to decorate the panel with a proven extended maintenance cycle. A number of coating manufacturers have warranties to suit MEDITE TRICOYA EXTREME (see web site for details).

LaminatingA variety of overlays can be adhered to the product, using the appropriate adhesives.

Gluing MEDITE TRICOYA EXTREME is drier than standard wood panels and will absorb water in a different manner, this can affect the suitability and curing time of some adhesives. Suitable glues for MEDITE TRICOYA EXTREME are PU, Epoxy, PRF and EPI glues (please check with the resin supplier for the optimum curing times).

FixingWhen installing MEDITE TRICOYA EXTREME always use stainless steel fasteners and fixings of at least A2 or A4 (EN 10088-1) or AISI type 304 / 316 quality.

SupplyMEDITE TRICOYA EXTREME is produced in the following standard panel sizes.

6mm 1220 x 2440

9mm 1220 x 2440

12mm 1220 x 2440 / 3050

15mm 1220 x 2440 / 3050

18mm 1220 x 2440 / 3050

Other sizes may be produced upon request.

Fire ratingMEDITE TRICOYA EXTREME panels achieve a fire class of Euroclass D within the Euro classification system.

For more informationwww.meditetricoya.com

UK: +44 (0) 1322 424900 Ireland: +353 5 181 0205 Germany: +49 32221097221 France: +33 975189830 Netherlands: +31 858886230 Belgium: +32 28086256

MEDITE® is a registered trademark of MEDITE EUROPE DAC (“MEDITE”) and cannot be used or reproduced without MEDITE’s written permission. Tricoya®, Accoya® and the trimarque device are registered trademarks owned by Accsys Technologies, the trading name of Titan Wood Ltd.

Independent testing by BRE shows an expected service life of 60 years for exterior use

Improved stability and durability enhances service life of the coating. Damaged coating will not affect the core

Swelling and shrinking dramatically reduced

FEATURES & BENEFITS

Longer lasting, perfect for external and internal wet environments

All the design, fixing and machining flexibility of MDF

Effective barrier to fungal decay

Extended periods between exterior coatings maintenance

Peace of mind with a 25 year in-ground and 50 year above ground guarantee

FSC® certified. Wood used from sustainable sources

V30517

SUSTAINABLY SOURCED FSC® certified. Wood used from sustainable sources

FEATURES AND BENEFITS

MEDITE TRICOYA EXTREME is characterised by its durability, dimensional stability and reliability properties. The new design and application possibilities offered by the marriage of acetylated wood fibre with the manufacturing technology of MEDITE MDF is set to excite and stimulate composite product manufacturers, designers, architects and the construction industry alike, opening up new possibilities and solutions.

Machining/Finishing: MEDITE TRICOYA EXTREME may be cut, machined and used in exactly the same way as other wood fibreboards such as MEDITE PREMIER. There is no change in machinability. MEDITE TRICOYA EXTREME is delivered with a 120 grit sanded finish. It may be sanded with finer papers to achieve smoother surfaces. Water based paint systems may be used to decorate MEDITE TRICOYA EXTREME. MEDITE TRICOYA EXTREME may be successfully coated with melamine papers; laminates and foils. Exterior adhesives such as epoxy, polyurethane, phenol-resorcinol resin and EPI may be used conforming to EN301 Type I.

All mechanical fasteners that may be wetted, including screws, hinges, fixtures and fittings, should be manufactured from Stainless Steel EN 3506 type A2 or A4 or ANSI type 304 or 316. Internal handles and other furniture that are normally used in dry conditions may be made from any usually acceptable material.

Fire rating: MEDITE TRICOYA EXTREME is classified as Euroclass D within the Euroclassification system.

SUPPLYMEDITE TRICOYA EXTREME is produced in the following standard panel size

6mm 1220 x 2440 9mm 1220 x 2440 12mm 1220 x 2440 / 3050 15mm 1220 x 2440 / 3050 18mm 1220 x 2440 / 3050

Other sizes may be produced upon request.

Conditioning: It is important to note that there is little or no water chemically bound with wood in MEDITE TRICOYA EXTREME. Panels will have a moisture content of 3% to 5% which will vary slightly with ambient humidity.

DESIGN FREEDOM All the design, fixing and machining flexibility of MDF

LOWER MAINTENANCE COSTS Extended periods between exterior coatings maintenance

PERFECT FOR COATING Improved stability and durability enhances service life of the coating. Damaged coating will not affect the core

RESISTANT TO FUNGAL DECAY Effective barrier to fungal decay

DESIRED SERVICE LIFE OF 60 YEARS Independent testing by BRE shows an expected service life of 60 years for exterior use

DURABLE Longer lasting, perfect for external and internal wet environments

50 YEAR GUARANTEE Peace of mind with a 25 year in-ground and 50 year above ground guarantee

ENHANCED STABILITY Swelling and shrinking dramatically reduced

HIGHPERFORMANCEWOOD PANEL

HIGHPERFORMANCEWOOD PANEL

TECHNICAL SPECIFICATIONS

QMS No. Tech 05.2012: The results as listed on left are based on the minimum specification requirements for MEDITE TRICOYA EXTREME manufactured by MEDITE EUROPE DAC. All parameters are in compliance with EN 622 parts 1 & 5. As part of the MEDITE EUROPE ongoing product development programme, the right to modify these product specifications without notice is reserved. No formaldehyde is added to the acetylated softwood fibres during manufacture of MEDITE TRICOYA EXTREME. Free formaldehyde is less than 1.0mg/100g using EN 120 test method, complying with the lower levels required by CARB phase 2.

UK: +44 (0) 1322 424900 Ireland: +353 5 181 0205 Germany: +49 32221097221 France: +33 975189830 Netherlands: +31 858886230 Belgium: +32 28086256

MEDITE® is a registered trademark of MEDITE EUROPE DAC (“MEDITE”) and cannot be used or reproduced without MEDITE’S written permission. Tricoya® and the trimarque device are registered trademarks owned by Accsys Technologies, the trading name of Titan Wood Ltd.

WWW.MEDITETRICOYA.COM

PROPERTY RANGE TEST UNITS THICKNESS METHOD 6 9 12 15 18

Density +/-30 kg/m3 720 720 720 700 700

Internal Bond Min EN 319 N/mm2 0.80 0.80 0.80 0.80 0.80

Modulus of Rupture Min EN 310 N/mm2 30.0 30.0 25.0 20.0 20.0

Modulus of Elasticity Min EN 310 N/mm2 3,000 3,000 2,500 2,500 2,500

Screw Holding Face Min EN 320 N - - - 900 900

Screw Holding Edge Min EN 320 N - - - 700 700

Free Formaldehyde Max EN 120 mg/100g < 1.0 < 1.0 < 1.0 < 1.0 < 1.0

Thickness Tolerance EN 324-1 mm +/- 0.15 +/- 0.15 +/- 0.15 +/- 0.15 +/- 0.15

Thickness Swell (24hrs) Max EN 317 % 2.5 2.0 2.0 1.5 1.5

Thermal Resistance R Value m2 K/W 0.056 0.085 0.114 0.15 0.18

DIMENSIONAL MOVEMENTLength / Width EN 318 % +/- 0.1 +/- 0.1 +/- 0.1 +/- 0.1 +/- 0.1

Thickness EN 318 % +/- 1.0 +/- 1.0 +/- 1.0 +/- 1.0 +/- 1.0

AFTER BOIL TEST EN1087-1

Internal Bond Min EN 319 N/mm2 0.65 0.65 0.65 0.65 0.65

V10517

CLADDING BOARD AND PANEL APPLICATIONS

2

CONTENTSAbout the panel 3

Features and benefits 4

Properties 6

Boarding 8

horizontal 8

vertical/diagonal 9

grooved panels 10

ventilation and joints 10

fasteners and placing 11

fixing distance 11

Panel cladding 12

screw fixing 12

fixing distances 14

corner details 15

ventilation and joints 16

Other exterior applications 17

Coatings 18

More information 20

CONTENTSAbout the panel 3

Features and benefits 4

Properties 6

Boarding 8

horizontal 8

vertical/diagonal 9

grooved panels 10

ventilation and joints 10

fasteners and placing 11

fixing distance 11

Panel cladding 12

screw fixing 12

fixing distances 14

corner details 15

ventilation and joints 16

Other exterior applications 17

Coatings 18

More information 20

ABOUT THE PANELMEDITE TRICOYA EXTREME is a completely new, innovative form of panel product. It demonstrates outstanding durability and stability in the most extreme and challenging environments – both exterior as well as interior wet applications. The product uses proprietary acetylation wood technology and a modified fibre board manufacturing process to create a wood panel product with outstanding durability and stability.

MEDITE TRICOYA EXTREME was developed by challenging the most fundamental reason for wood swelling and decay: water adsorption onto hygroscopic wood fibres due to the presence of hydroxyl groups. The hydroxyl groups (water loving sites) can bind or release water molecules causing wood to swell or shrink.

Acetylation is a non-toxic, sustainable process which increases the number of naturally occurring hydrophobic acetyl groups in the wood cells using acetic anhydride. The process exchanges the hydroxyl groups (chemical formula: -OH) with acetyl groups (chemical formula: -COCH3) preventing water adsorption at these sites, and thus enhancing the dimensional stability and durability of the wood.

Apart from creating an exceptional dimensional stability, the process enables MEDITE TRICOYA EXTREME to achieve Class 1 Durability, leading to resistance to biological decay which exceeds oak.

MEDITE TRICOYA EXTREME offers a solution for specifiers and consumers in environments of wet, high humidity or fully weather exposed applications to deliver superior performance in versatile large panel form.

Tricoya element

Refining the elements into wood fibre to make Medite Tricoya Extreme

MEDITE TRICOYA EXTREME These guidelines have been written for professionals wishing to use MEDITE® TRICOYA® EXTREME to create beautiful, reliable and highly durable end products.

This document was developed in close cooperation with Alexis Harrison and Stephen Philips of ARUP.

Stephen Philips Industrial designer with experience in the design of high performance building products and projects.

Alexis Harrison Designer and materials specialist with experience of building and cladding system design with specialist knowledge of architectural practices.

Should you require further information or have any comments about this document, please contact MEDITE through www.MEDITETRICOYA.com.

3

© Image copyright to MEDITE

4

FEATURES & BENEFITS

5

Independent testing by BRE shows an expected service life of 60 years for exterior use

Improved stability and durability enhances service life of the coating. Damaged coating will not affect the core

Swelling and shrinking dramatically reduced

Longer lasting, perfect for external and internal wet environments

All the design, fixing and machining flexibility of MDF

Effective barrier to fungal decay

Extended periods between exterior coatings maintenance

Peace of mind with a 25 year in-ground and 50 year above ground guarantee

FSC® certified. Wood used from sustainable sources

PROPERTIESMEDITE TRICOYA EXTREME is a new class of durable wood panel product with enhanced dimensionally stability, suitable for a wide range of exterior applications such as cladding, façade panelling, fascias, soffits, etc. MEDITE TRICOYA EXTREME can be cut, machined and installed using techniques and equipment commonly used throughout the building industry and require very low maintenance thereafter. The flexibility of MEDITE TRICOYA EXTREME offers endless design opportunities so that it can be cut to size, machined, painted, wrapped etc. without impacting on its unique properties.

Moisture contentMEDITE TRICOYA EXTREME is supplied with a moisture content of between 3% - 5%. The moisture content of panels at the time of installation should be as close as possible to the inservice moisture content. If a measurement shows a moisture content of 8% or more this may indicate the presence of “free water” and the MEDITE TRICOYA EXTREME should be allowed to dry before processing, gluing or coating.

CE markingAll MEDITE MDF products supplied for use in the construction and civil engineering industries are CE marked according to the requirements of the harmonized European standard for wood based panels EN 13986. This provides the necessary assurance to customers and users that MEDITE TRICOYA EXTREME conforms to the European MDF standard, EN622-5 and meets all the essential requirements for the Construction Products Regulation (CPR) that are relevant to the product.

Reports and certificatesThe Fraunhofer Institute for Wood Research (WKI), concluded that the performance of MEDITE TRICOYA EXTREME is so outstanding that it will allow an MDF type panel board to be used in applications that have not previously been possible.

Building Research Establishment (BRE) performance testing indicated that MEDITE TRICOYA EXTREME achieves durability class 1 under EN350-2. Durability is equivalent to teak and more durable than oak.

SP Wood Technology tested the product’s ability to resist wood destroying basidiomycetes (white and brown rot) with outstanding results.

British Board of Agrément (BBA) assessment concludes that MEDITE TRICOYA EXTREME is suitable for internal and external non-structural applications (BBA Assessment number M2/49109).

For copies of these reports and/or certificates, please contact our sales office or visit our website.

6

THE RESULTS LISTED ABOVE ARE BASED ON THE MINIMUM SPECIFICATION REQUIREMENTS FOR MEDITE TRICOYA EXTREME MANUFACTURED BY MEDITE EUROPE DAC. ALL PARAMETERS ARE IN COMPLIANCE WITH EN 622 PARTS 1 & 5. AS PART OF THE MEDITE EUROPE ONGOING PRODUCT DEVELOPMENT PROGRAMME, THE RIGHT TO MODIFY THESE PRODUCT SPECIFICATIONS WITHOUT NOTICE IS RESERVED. MEDITE TRICOYA EXTREME CONTAINS NO ADDED FORMALDEHYDE AND THE FORMALDEHYDE CONTENT IS LESS THAN 1.0 MG/100 G USING EN 120 TEST METHOD, WHICH IS FAR BELOW THE LOWER LEVELS REQUIRED BY CARB PHASE 2.

PHYSICALPROPERTIES

RANGE TESTMETHOD

UNITS VALUE

Density +/-30 EN 323 kg/m3 720 (9, 12 mm) 700 (15, 18 mm)

Dimensional StabilityCoefficient of thermal expansion NPL mm/m °C 0.0137 Per 10% RH change NPL mm/m 0.25Thermal Conductivity EN 12664 W/m K 0.095

DIMENSIONSWidth ± 1 mm/m EN 324-1 mm 1220 Length ± 1 mm/m EN 324-1 mm 2440 Thickness ± 0.15 EN 324-1 mm 9, 12, 15, 18

MECHANICALPROPERTIESE-modulus EN 310 N/mm2 ≥ 3000 (9 mm)

≥ 2500 (12, 15, 18 mm)Bending Strength EN 310 N/mm2 ≥ 30 (9 mm)

≥ 25 (12 mm) ≥ 20 (15, 18 mm)

Tensile Strength EN 319 N/mm2 > 0.8

7

BOARDINGIf using the MEDITE TRICOYA EXTREME board in a system which resembles a wooden cladding system there are a number of jointing techniques as with regular cladding which can be considered depending on the final appearance of the façade.

Traditionally normal wood type cladding measures 150 mm wide, with a recommended limit of 190 mm due to cupping issues. The width of MEDITE TRICOYA EXTREME boards is not restricted by cupping and can therefore be wider, leading to a strong visual appeal unobtainable with traditional wood.

MEDITE TRICOYA EXTREME is suitable for standard cladding types, and in general, the installer should follow the same recommendations for fitting as with traditional wood boarding, requiring no special detailing or tools. As with traditional wood boarding, a ventilated cavity needs to be present behind the boards.

MEDITE TRICOYA EXTREME panels can be cut, profiled, embossed or routered to specified designs without encountering restrictions or issues associated with the instability of traditional cladding products while maintaining its durability.

The most popular designs are:

• Open jointed

• Square edge

• Shiplap

• Tongue and Groove.

Other designs are of course possible.<300 MM face width

For horizontal boarding not exceeding 300 mm face width, the open joint chamfered boards should have a 5 - 10 mm gap between the boards at the outer face. The vertical overlaps of square and feather edge should be at least 20 mm.

When choosing a shiplap profile, the minimum vertical overlap can be reduced to 10 mm, but there should be at least a 1 mm gap between rebate and board / up stand below (see also the section on joints on page 10).

<225 MM face width

Horizontal tongue and grooved boards should not exceed 225 mm face width. The depth of the tongue should be at least 10 mm, with at least a 1 mm gap between tongue and groove shoulders. The boards should always be installed with the tongue upwards, to prevent water penetrating the profile.

> 12 MM

> 12 MM

> 20

MM

> 12 MM > 18 MM

< 30

0 M

M

10 M

M1

MM

5-10 MM

30°

< 22

5 M

M1

MM

8 M

M

OPENJOINT

SQUAREEDGE

SHIPLAP HORIZONTALT-AND-G

8

Horizontal boardingWhen mounted horizontally, the fixing can be made invisible.

Vertical and diagonal boardingThe board designs suitable for vertical boarding are (overlapping) square edge, shiplap and tongue and groove.

When installing the profiles vertically at least two fasteners per board are necessary and at least one of these fastners, such as a nail will be visible. It is recommended to limit the board lengths to the storey height, and end joints must relate to batten positions.

A double sub frame is best practice where horizontal fixing battens are fastened on vertical counter battens (see figure opposite). The horizontal battens should be chamfered at the top side, shedding water into the cavity. The lowest batten should slant inward at the bottom, creating a drip lip at the intersection with the counter battens.

If only horizontal (fixing) battens are used, additional measures need to be taken to ensure sufficient ventilation. For example, making cut-outs in the battens or interrupting the battens at regular intervals and staggered relative to each other. In this case it is preferable if the horizontal battens are chamfered on the top edge to shed any water outwards.

Water penetration at the end grain of vertical battens should be avoided by applying a sealer.

<225 MM face width

For vertical boarding not exceeding 225 mm face width, the overlap distance for board on board fixing should be at least 15 mm. Board widths can vary between the inner and outer layer, but fixings through the outer boards should never pass through the board behind, to avoid splitting.

It is also possible to use an open joint, with a 5 – 10 mm gap between boards. The edge sides of the boards should be slanted outward, with a gap of at least 5 mm between board ends. Note that by leaving the joints open, the cavity and the sub-frame is visible, and a UV-resistant breather membrane must therefore be applied.

<175 MM face width

The face width of the shiplap profile should be limited to 175 mm (15 mm thickness), while the face width of the tongue and groove profiled boards should not exceed 150 mm (18 mm thickness). The groove should be at least 10 mm deep, with a 1 mm gap between tongue and groove and shoulders.

9

10

Grooved panelsFull panel utilisation width and length can be used and may include design requirements such as routering into the surface to create the impression of traditional joint types or novel artistic design.

Please note that when fixing this type of panel to the sub-frame, it is recommended using a fixing system suitable for panels (see the chapter on panel cladding; from page 12). In any case, the pull-out strength of the total fixing system of the grooved panel should be checked by an engineer.

VentilationTo ensure that rain water and condensation behind the boarding is removed and the insulation behind the panels will not lose its effectiveness, a continuously ventilated cavity should be present behind the outer decorative layer. This cavity is ventilated through the ventilation in- and outlets situated at the top and bottom of the façade (at least 200 mm2 per m2 cladding). It is recommended that the depth of the cavity behind the cladding should be at least 20 mm.

Note that the cavity depth as well as the minimum size of the ventilation in- and outlets must be in accordance with applicable building standards and regulations and that a water repellent, breathable membrane (UV resistant when joints are left open) is applied at the back of the cavity. An insect mesh might be required in ventilation in- and outlets and/or in case of open joints.

Although not a technical requirement for MEDITE TRICOYA EXTREME, it is recommend for aesthetic reasons that cladding boards are positioned on the façade in such a way that no direct contact with the soil can take place. Furthermore, mounting the boards in the splash zone, between ground level and a height of 200 to 250 mm, will lead to a reduction in service life of any coating (in case of a paved surface). Applying a gravel section below the cladding is recommended.

JointsMEDITE TRICOYA EXTREME cladding boards need to be installed with a mutual distance of at least 1 mm. When meeting other construction elements and/or between the lengths of two boards, a free space of 5 mm should be allowed for.

Fasteners and placingMEDITE TRICOYA EXTREME can be face fixed (and in some cases secret) onto the wooden sub-frame with ring shank (or other improved) nails or screws (raised head or round head), made of stainless steel type A2 or A4.

Stapling is not recommended, nor is it to drive the nail or screw heads into the wood. T-nails should not be used for external cladding as they offer little resistance to axial withdrawal. Lost head nails should also be avoided as they offer little resistance to pull-through.

When using screws, it is recommended to pre drill the holes in the MEDITE TRICOYA EXTREME with a diameter which is 1 mm smaller than the screw shank. Nail holes should be predrilled to 80% of the diameter.

The recommended point side penetration of nails into the timber battens is:

• Smooth nails: 12d*

• Ring shank and other improved mails: 6d

(grooved panels: at least10 d)

*d = shank diameter of the fastener

If the nail head is at least 2d it is assumed pull-through will not occur, because the pull-through resistance exceeds the withdrawal resistance. As a general rule, the length of a standard nail (and therefore also the minimum sub-frame thickness) will be approximately 2,5 x board thickness and with ring-shank and other improved nails standard nails approximately 2 x board thickness.

Screws have a greater axial strength than nails, and are therefore recommended for use with grooved panels. There are as yet no general guidelines on withdrawal capacity for the most common dowel type fasteners like screws used with standard timber cladding.

To ensure a durable and lasting fixation, the boards should be fixed with at least 75 mm clearance to the end of the board (pre drill hole to 1 mm less than the shank diameter or 80% of nail diameter). The minimum distance to the top and bottom edge of the boards is 25 mm.

Fixing distanceSupport battens should not exceed 600 mm spacing, whether vertical or horizontal, to limit the span of the cladding board. For diagonal boards the spacing of the support battens should not exceed 400 mm, unless the battens are installed diagonally also.

< 600 MM> 75 MM

> 25

MM

> 25

MM

11

PANEL CLADDINGWhen considering a rain screen system with panel style cladding, there are certain issues that need to be considered, among which the fixings used to make up the system. The fixing methods to consider for MEDITE TRICOYA EXTREME include adhesive and screw fixings.

Please be advised that all recommendations in this brochure are guidelines, and should be checked by the proper authorities on conformity with local circumstances, building codes and standards and checked by a licensed engineer.

Please take note of the guidelines on possible fixing systems, ventilation, sub frames, joints and fasteners described in this brochure when designing cladding with MEDITE TRICOYA EXTREME, and ensure that the recommended fixing positions and fasteners are used. Contact our sales office for further support on possible fixing systems.

For façade cladding with MEDITE TRICOYA EXTREME, the following conditions need to be taken into account:

• The panels need to absorb the wind load and convey this to the sub structure;

• The deflection of the panels due to this wind load should not exceed a two hundredth of the spanning distance (the distance between two fasteners on either direction);

• The maximum expansion under the influence of moisture and temperature changes is 1.5 mm/m, which needs to be considered with regard to joints.

Screw fixing on a timber sub-frameScrew fixing is the most traditional form of fixing and is likely to be the least expensive system to be considered as a MEDITE TRICOYA EXTREME façade rain screen system. Screws can pass through the cladding panel and into timber battens placed behind the cladding.

Sub frame Vertical timber battens, no smaller than 38 mm x 38 mm in section, should be used to support the cladding to the supporting wall or cladding structure. For the outer corner, a corner infill piece can be used to protect and finish the corner of the façade.

For the inner corner, a shadow gap of no less than 3 mm is normally used; with the rear battens masked using a flexible black or dark grey joint cover strip material.

Fasteners Screws for face fixing should be made of stainless steel A2 or A4. The length of the screw should be at least 25 mm + panel thickness (+ any spacers). If the screw head diameter is at least 5 mm bigger than the hole diameter, it is assumed pull-through will not occur, because the pull-through resistance exceeds the withdrawal resistance. Holes for the fasteners should be pre-drilled, slightly over-sized (≥ 120%) compared to the shank diameter, to allow for panel and sub-frame expansion.

Screws should be positioned at least 25 mm from the edge of the panel and at least 75 mm from corners. The maximum edge distance for this type of fixing is 15 x panel thickness.

For further design guidance and pull out strengths, the fastener manufacturer should be contacted. For guidelines of the maximum fixing distances that follow from the maximum acceptable deflection of the panels, see the graphs on page 14.

12

13

Invisible fixing with adhesiveHidden fixings are often favoured in a rain screen cladding system as the structural connection is hidden, with no need for mechanical rivet or screw heads to be seen on the face of the cladding panels. The structural bonding of a façade panel to a vertical wooden or aluminium rail system offers the opportunity to provide a non-mechanical secret fix mounting.

Sub frame MEDITE TRICOYA EXTREME is suitable for gluing on a vertical timber or aluminium sub-frame. To allow for the relative movement of the façade panel in relation to the sub-frame, it is very important that the adhesives used remain permanently elastic.

Adhesive systemsTesting has shown good results with a number of different adhesive manufacturers. Suitable adhesive systems typically consist of (permanent) elastic adhesive, fixing tape, cleaner and primers for both the panels and the sub-frame.

Please contact us for more information on tested adhesive manufacturers.

Please contact the manufacturers of gluing systems for information on preparation and installation of the framework and the finished panels.

The fixing distance will have to be determined in consultation with the adhesive manufacturers and according to the valid building codes and regulations, but rely amongst others on the wind load. For guidelines of the maximum fixing distances that follow from the maximum allowed deflection of the panels, we refer to the graphs on page 14.

Fixing distancesThe distances between the supports is crucial to the ultimate performance of the MEDITE TRICOYA EXTREME cladding panel.

As a general guideline, these graphs depict the maximum fixing distances for the different panel thicknesses, based on the maximum tolerable deflection of the panel (1/200 of the span).

Note that the maximum fixing distance of multiple span panels (three or more vertical fixings) is higher than that of single span panels (two vertical fixings per panel), due to increased stiffness.

The strength of the total system (spacing, number and type of fixing required due to wind loading) must at all times be checked by a licensed engineer.

1,000

18 mm900

800

700

600

500

400

3000,50 0,75 1,00 1,25 1,50 1,75 2,00 2,25 2,50

Single span

Max

imum

fix

ing

dist

ance

[mm

]

Wind load [kN/m2]

15 mm

12 mm

9 mm

1,000

1,100

1,200

1,300

18 mm

900

800

700

600

500

400

3000,50 0,75 1,00 1,25 1,50 1,75 2,00 2,25 2,50

Multiple span

Max

imum

fix

ing

dist

ance

[mm

]

Wind load [kN/m2]

15 mm

12 mm

9 mm

14

Corner detailsCorner solutions for MEDITE TRICOYA EXTREME as cladding can be detailed in numerous ways, both with and without incorporating profiles. When a board meets another construction part (or another board) a gap of at least 5 mm should be provided. Depending on the applicable national building code, to which you should refer, cavity barriers may be needed at corners.

5 M

M5

MM

5 MM 5 MM

5 MM 5 M

M

5 M

M

5 M

M

5 MM

15

VentilationMEDITE TRICOYA EXTREME is suitable for installation in a ventilated façade system.

This type of façade system is characterised by continuous ventilation behind the outer decorative layer, through the ventilation in- and outlets situated at the top and bottom of the façade (at least 200 mm2 per m2 cladding). This way, rain water and condensation behind the cladding is removed and the insulation behind the panels will not lose its effectiveness. It is recommended that the depth of the cavity behind the cladding should be at least 20 mm.

Note that the cavity depth as well as the minimum size of the ventilation in- and outlets must be in accordance with applicable building standards and regulations and that a water repellent, breathable membrane (UV resistant when joints are left open) is applied at the back of the cavity. An insect mesh might be required in ventilation in- and outlets and/or in case of open joints.

Although not a technical requirement for MEDITE TRICOYA EXTREME, we do recommend for aesthetic reasons that panels are positioned on the façade in such a way that no direct contact with the soil can take place. Furthermore, mounting panels in the splash zone, between ground level and a height of 200 to 250 mm, will lead to a reduction in service life of any coating (in case of a paved surface). Applying a gravel section below the cladding is recommended.

Joints Considering the circumstances the MEDITE TRICOYA EXTREME is used in, the panels will not expand or shrink more than 1.5 mm/m in practice. However, the material will be mounted onto a sub-frame that shows a significant expansion and shrinkage due to changes in temperature and/or humidity, which needs to be taken into account.

Therefore, MEDITE TRICOYA EXTREME cladding panels need to be installed with (at least) a 5 mm free space around the edges. When the joint is left open, the sub frame supporting the panels should be protected (full width) by a suitable weather resistant joint tape in case of battens.

200-

250

MM

Note that panels should be fitted with spacers and not fitted flush to any masonry or brickwork.

16

OTHER EXTERIOR APPLICATIONSFascia and soffitsMEDITE TRICOYA EXTREME can be used for soffits or fascia finish for roof ends. Although different sub-frames are possible, the application onto battens (timber sub-frame) is the most usual. It is recommended to limit the maximum height of the boards as stated in the table below and to fix the board vertically at two places. The roof lining boards can be fastened visibly with wood screws, or they can be glued onto the sub-frame.

It is also possible to fix the boards invisibly by using screws at the top of the board (which will be concealed by the roof trim) and fitting the tongued bottom edge into continuous (aluminium) U-shaped rails.

Spandrel panelsDue to its durability and enhanced dimensional stability, MEDITE TRICOYA EXTREME is suited for the application of walling between structural members e.g. a timber framed building. The panels can be as large as the numbers in the table below, provided the panels are fitted in a (sufficient stiff) window frame on all edges. The size of the panel is limited in one direction only (either vertical or horizontal).

Panels with a length and width exceeding 1 metre should have an intermediate support installed. For the resulting two surfaces, the limits in the table below apply.

Exterior ceilingsMEDITE TRICOYA EXTREME is also suited for use in horizontal applications like exterior ceilings (e.g. shopping centres, car ports and overhangs). The fixing systems described in the previous pages can be used:

• Cladding boards

• Screw fixing on a timber sub frame

• Invisible fixing with adhesive.

The specific guidelines of the chosen fixing systems apply. We recommend limiting the support distance for cladding boards to 450 mm, and the fixing distance of cladding panels to 75% of those stated in the graphs on page 14 due to panel deflection by its own weight in a horizontal application.

PANEL THICKNESS9mm 12mm

Board height ≤ 250mm 400mmHorizontal fixing distance ≤ 500mm 500mm

PANEL THICKNESS MAX PANEL WIDTH9mm 550mm12mm 700mm15mm 850mm18mm 1,000mm

DIMENSIONS 6mm 9mmCurve 2,440mm 2,440mmRadius (R) 620mm 977mm

Angle ( ) 120mm 145mmChord 1,100mm 1,900mmLevel 900mm 750mmBattens (c.t.c.) 300mm 400mmFixings edge (c.t.c.) 270mm 300mmFixings intermed. (c.t.c.) 300mm 300mm

Leve

l

Chord

R

0

Curve

Curved panelsBecause of its superior properties, MEDITE TRICOYA EXTREME can easily be curved and bent, according to the specifications opposite.

Curved boards can be fixed with the fasteners described in the chapter on cladding panels. In case of adhesive, the outer sides need to be fastened additionally with wood screws.

17

COATINGSThere is no need to finish MEDITE TRICOYA EXTREME from a technical performance perspective, in respect of attributes such as decay resistance and dimensional stability. However, MEDITE TRICOYA EXTREME is susceptible to weathering in outdoor circumstances. Uncoated panels used outdoors will weather and roughen due to UV and biological processes that take place within the wood fibres and at its surface. Where a lasting aesthetic appearance is required, a high quality coating system will protect against this weathering effect and minimise discolouration.

MEDITE TRICOYA EXTREME is all-natural and non-toxic so mould growth can occur if MEDITE TRICOYA EXTREME is left uncoated, though any moulds, stains, mosses or algae will not cause rot within MEDITE TRICOYA EXTREME. Common mould growth can be avoided by using a suitable outdoor primer which addresses mould growth. Staining and discolouration can be avoided by using a high quality UV resistant coating. This also protects the wood from accidental staining.

The compatibility of MEDITE TRICOYA EXTREME with various coating systems compares well with wood in general and it may be finished with commonly used products.

Please note: coating formulations vary from supplier to supplier and, of course, processes vary depending on the application equipment used and end-product design. Despite our excellent record of compatibility, we highly recommend having your coating suppliers involved in the process as they have an in-depth knowledge of their products, application and how to determine the performance of the finished product.

For detailed information on certain coating suppliers, we refer to the download section of our website, please log onto www.MEDITETRICOYA.com.

Preparation• The moisture content of the MEDITE TRICOYA EXTREME

to be coated should be dry (below 8% moisture content)

• The surface to be coated should be clean, dry and free from dust and grease

• It is recommended finishing the panels on all sides before mounting them, to prevent staining. Fire retardant treated panels must always be coated on both sides

• It is recommended to round off the corners with a radius of at least 3 mm

• For aesthetic reasons, it is recommended the edges of the panels to be treated with end-grain sealer (white or transparent), before applying the final coating

• When using a primer, a high quality product that contains resin-bleed blockers and fungicides is recommended.

Opaque coatings (film forming)The opaque and (semi-) translucent coating systems should be applied with a minimum dry film thickness that corresponds to the requirements of the end product and/or paint suppliers instructions.

Translucent coatings (non-film forming)As MEDITE TRICOYA EXTREME does not have a wood grain look but an MDF ‘fibre’ look, staining and oiling might not be the first colour treatment that comes to mind. However, using a semi-translucent coating gives a very distinctive almost wood like impression, especially with darker coloured semi-translucent coatings.

Further information on all coatings may be obtained directly from coating suppliers. A wide range of coatings will be suitable for use with MEDITE TRICOYA EXTREME. The table opposite contains industrially applied coating systems that are specifically tailored for and warranted with MEDITE TRICOYA EXTREME.Note: These systems may vary from country to country, we therefore recommend that advice is sought directly from the coating company in your area

18

COATING MANUFACTURER PRIMER TOPCOAT WARRANTY SYSTEM

AkzoNobel XP 650 Aqua PU Primer 256 2K 150–175 µm (wet) in 1 or 2 layers:

• Akzo Nobel Winflex T25

• Akzo Nobel Winflex T35

• Akzo Nobel Winflex T3635

up to 10 years Opaque

Drywood • 2 layers Optifinish G40 / G70

• 3 layers Optifinish TR SG / GL

up to 15 years Opaque

2 layers Optiprimer G finish front / edges at the construction site with e.g. Poseidon UV GL

up to 15 years Opaque

semi film forming: 3 layers (back side 2 layers) Woodstain VV

up to 15 years Translucent

PPG 120 µm (dry) in 2 layers PPG Wood Finishes 152QO

• 40 µm (dry) Sigma S2U (Semi-) Gloss

• 50 µm (dry) PPG Wood Finishes 892 QO

up to 7 years1 Opaque

Remmers Induline GW-310 1 or 2 layers Induline DW-603 up to 10 years OpaqueInduline GW-310 1 or 2 layers Induline LW-710 up to 10 years Translucent

Sikkens Rubbol WP 151 2K 150–175 µm (wet) in 1 or 2 layers:

• Rubbol WF375

• Rubbol WF387

• Rubbol WF382

up to 15 years2 Opaque

Rubbol WM 260 1K 150–175 µm (wet) in 1 or 2 layers:

• Rubbol WF375

• Rubbol WF387

• Rubbol WF382

up to 15 years3 Opaque

Teknos Teknoseal 4002 Aquatop 2600 up to 12 years Opaque

1: warranty can be extended to 10 years with a planned over-coating with Sigma S2U Semi-Gloss in the 7th year.

2: warranty can be extended to 25 years with a planned over-coating with Rubbol XD Gloss in the 16th year.

3: warranty can be extended to 20 years with a planned over-coating with Rubbol XD Gloss in the 16th year.

19

LaminatesThe surface of MEDITE TRICOYA EXTREME can be covered or overlaid with wood, HPL, CPL and melamine papers. A number of industrial processors are successfully developing systems. For further information please contact MEDITE.

Manually applied coatingsTo achieve the best results, any coating on MEDITE TRICOYA EXTREME should best be applied industrially. However, if circumstances require, it is possible to apply a coating on MEDITE TRICOYA EXTREME manually. Apart from the general preparation (page 18) below are the recommendations for manually applied coatings.

PrimingIt is recommended to use an (industrially applied) primer to prevent uneven uptake of the finishing coat layers. The primer used should be a high-quality, low-odour, isolating, physically drying paint, that contains resin-bleed blockers and fungicides.

CoatingTo achieve a good covering, it is recommended to apply at least two layers. By lightly sanding the surface in between the layers, fibre roughening is eliminated. We strongly recommend adhering to the instructions of the paint manufacturer regarding the application method (brush, roller or spray) and the drying conditions (temperature and humidity).

GluingTo manufacture for example fixed corner profiles, MEDITE TRICOYA EXTREME can be glued together with D3 or D4 (EN204) class adhesives. In general MEDITE TRICOYA EXTREME can be glued using PU, RPF, or EPI wood adhesive systems.

MEDITE® is a registered trademark of MEDITE EUROPE DAC (“MEDITE”) and cannot be used or reproduced without MEDITE’s written permission. TRICOYA® and the trimarque device are registered trademarks owned by Accsys Technologies, the trading name of Titan Wood Ltd. V40517

More information For more information please contact our sales office:

UK: +44 (0) 1322 424900 Ireland: +353 5 181 0205 Germany: +49 32221097221 France: +33 975189830 Netherlands: +31 858886230 Belgium: +32 28086256

Other brochures and information sheets on specific subjects like machining and handling, fasteners and specific coatings can also be found in the download section of www.meditetricoya.com

EPHISUCCESS BY QUALITYEntwicklungs- und Prüflabor Holztechnologie GmbHZellescher Weg 24 -01217 Dresden • Germanywww.eph-dresden.de

((DAkkSDeutscheAkkreditierungsstelleD-ZE-11054-01-00

DeutschesInstitut

fürBautechnik

European Notified Body for construction products 0766accredited by Deutsche Akkreditierungsstelle GmbH (DAkkS) Recognized body of DIBt SAC03

ATTESTATION OF CONFORMITYCARB - IKEA 16-07-07-01

ln accordance with the provisions of Third Party Certification required within the Final RegulationsOrder (FRO) of the Airborne Toxic Control Measure (ATCM) by the California Air Resources Board

(CARB) and by IKEA regarding IOS-MAT-0003, it is hereby affirmed that the production of thecertified product

Fibreboard (MDI)Type Exterior, Ecologique, Tricoya, Vent, Fire Retardant Ecologique

in the thickness ränge of 3 mm to 38 mm

manufactured by

EDITE

at its manufacturing site

Medite Europe LTD.Redmondstown, Clonmel

Co. Tipperary - Ireland

meets the requirements of FRO, § 93.120.3(c) due to ensure the compliance with the emissionStandards of No-Added Formaldehyde Based Resin.The approved Third Party Certifier (TPC) Entwicklungs- und Prüflabor Holztechnologie GmbH (EPH)with the executive Order W-14-010 is contracted by the manufacturer to perform the bienniallystipulated formaldehyde tests as required in FRO, § 93120.12 Appendix 2 carried out by theaccredited EPH test laboratory.

This evaluation is based on:

TPC Supervision Report No. NAF-2016 dated 07 July 2016

This attestation confirms as a proof of continued TPC-certification the validity of the InitialCertification No. CARB-09-03-24-02/ CARB-09-03-24-04 and remains effective for the agreedsurveillance period unless the requirements and conditions under which this attestation has beenissued have changed considerably.

CEM09 Rev2 27/06/2016 ‘Controlled Document’ Page 1 of 1

CE symbol

MEDITE, Redmondstown, Clonmel, Co. Tipperary, Ireland Name and address of manufacturer

DOP09REV2 MEDITE TRICOYA EXTREME MDF.H-2

DoP reference.

EN 13986:2004

Reference to harmonised standard

Not Applicable

Notified body number

04 Year in which the CE mark was first affixed

E1

Formaldehyde classification

MDF.H-2

Product technical class

External use as non-structural components

Intended use

Thickness Range mm

6 to <9 9 to <12 12 to <15

15 to <18

18 Thickness range

Internal bond (N/mm2)

0.80

0.80

0.80

0.80

0.80

Swelling in thickness %

2.5

2.0

2.0

1.5

1.5

Declared performance

Internal bond after boil test (N/mm2)

0.65

0.65

0.65

0.65

0.65

Reaction to fire

NPD

D-s2,d0

D-s2,d0

D-s2,d0

D-s2,d0

Release of formaldehyde

E1

E1

E1

E1

E1

Release (content) of pentachlorophenol (PCP)

≤5ppm

≤5ppm

≤5ppm

≤5ppm

≤5ppm

Thermal resistance R Value m2k / W

0.056

0.085

0.114

0.150

0.180

Biological Use Classes 1,2,3, 4

DOP09 Rev3 03/10/16 ‘Controlled Document’

DECLARATION OF PERFORMANCE Reference number DOP09REV3 MEDITE TRICOYA EXTREME MDF.H-2

MEDITE Redmondstown

Clonmel, County Tipperary,

Ireland Product type Intended use AVCP* Notified Body reference

MDF.H-2 External use as non-structural components

4 Not Applicable

*Assessment and verification of constancy of performance system according to Annex V of regulation (EU) No 305/2011

Declared Performance Essential characteristics Harmonised technical specification

Thickness Range 6 to <9 9 to <12 12 to <15 15 to <18 18

EN

13986:2004+A1:2015

Internal bond (N/mm2) 0.80 0.80 0.80 0.80 0.80

Internal bond after boil test (N/mm2) 0.65 0.65 0.65 0.65 0.65

Swelling in thickness (24hrs) % 2.5 2.0 2.0 1.5 1.5

Release of formaldehyde E1 E1 E1 E1 E1

Reaction to fire NPD D-s2,d0 D-s2,d0 D-s2,d0 D-s2,d0

Water vapour permeability μ NPD NPD NPD NPD NPD

Airborne sound insulation (surface mass) (R)

NPD NPD NPD NPD NPD

Thermal resistance R Value m2K / W 0.056 0.085 0.114 0.150 0.180

Biological durability Use Classes 1,2,3 & 4

Release (content) of pentachlorophenol (PCP)

≤5ppm ≤5ppm ≤5ppm ≤5ppm ≤5ppm

The performance of the product identified is in conformity with the declared performance. This declaration of performance is issued under the sole responsibility of the manufacturer identified above.

Signed for and on behalf of the manufacturer by:

................................................................................................................................................................................. Tom Prendergast, Technical Manager. Clonmel, Ireland. 03rd October 2016.

UK System

Water based finishing system for Medite Tricoya Extreme

Dulux Trade Weathershield Quick Drying Exterior

Gloss / Satin

Surface Substrate: Medite Tricoya Extreme Required Finish Coat: Dulux Trade Weathershield Quick

Drying Exterior Gloss / Satin

Previous Coating: None / New board Finish Coat Data Sheet: 428 / 421

Surface Condition: Good (new uncoated) Finish Coat Colour Reference: See Colour Schedule

Durability Performance: High No. of Finish System Coats: 3

Finish Type: Water-based Sheen: Satin / Gloss

Brand: Dulux · Comply at all times with BS 6150: 2006 Code of Practice for Painting of Buildings (or as amended) and BS EN ISO 12944: 1998 Paints and Varnishes - Corrosion Protection of Steel Structures by Protective Paint Systems (or as amended). · AkzoNobel Decorative Paints will not accept responsibility for any unauthorised amendments or usage of the wording contained in this System sheet and in Paint’s Site Work Instructions v5. · In order to achieve the optimum results, it is extremely important to adhere to the systems and AkzoNobel Decorative Paint’s Site Work Instructions v5 quoted. · Products supplied for the carrying out of this specification are compliant with Statutory Instrument 2005 No. 2773 (Environmental Protection) - The Volatile Organic Compounds in Paints, Varnishes and Vehicle Refinishing Products Regulations 2005.

Preparation

Thoroughly clean down to ensure all areas are free from dirt, grease and surface contaminants. Remove oils

from surface by wiping with a sharp solvent. Round all sharp edges (a radius of 1 mm to 2 mm for timber other

than sills and thresholds; 3mm for sills and thresholds) and *dust off. Ensure all surfaces are fully dry before

proceeding. Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the inhalation

of dust. (See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)

Priming

2 coatsof Dulux Trade Weathershield Presetvative Primer+(BP)

LIBERALLY APPLY 2 coat of Dulux Trade Weathershield Preservative Primer + (BP) overall.

*Caution Weathershield Preservative Primer + (BP) contains: 3-iodo-2-propynyl-n-butyl carbamate and

propiconazole. Use biocides safely. Always read the label and product information before use.

Making Good

Make good all cracks, nail-holes, open joints and other imperfections with Dulux Trade Weathershield Exterior

Flexible Filler. When set carefully rub down and *dust off. Fillers, Stoppers & Glazing Compounds Use only

good quality/compatible materials and follow the manufacturers’ recommendations for use, even if at variance

with this system. Note *When rubbing down dry and/or dusting off wear a suitable face mask to avoid the

inhalation of dust. (See ICI Trade Paints Site Work Instructions v5 Clause SW4.20 for further information.)

Finishing System

One coat of Dulux Trade Weathershield Quick Drying Exterior Undercoat of selected shade.

2 coats of Dulux Trade Weathershield Quick Drying Exterior Gloss or Satin ofselectedshade.

For a more detailed specification regarding this site practices, please see the ICI Trade Paints Site Work

Instructions available from Medite Europe (www.meditetricoya.com/downloads) or from www.duspec.co.uk

For technical advice please contact 08444 817818

© Copyright and Database Right 1998 to 2011 AkzoNobel Decorative Paints.

BM TRADA Certification Ltd, Chiltern House, Stocking Lane, High Wycombe, Buckinghamshire, HP14 4ND, UK

This certificate remains the property of BM TRADA Certification Ltd. This certificate and all copies or reproductions of the certificate shall be returned to BM TRADA Certification Ltd or destroyed if requested. The validity of this certificate and the list of products covered

by this certificate can be verified on www.fsc-info.org Forest Stewardship Council®

This certificate itself does not constitute evidence that a particular product supplied by the certificate holder is FSC certified (or FSC Controlled Wood). Products offered, shipped or sold by the certificate holder can only be considered to be covered by the scope of this

certificate when the required FSC claim is stated on invoices and shipping documents.

Multisite clients – The scope of certification shown above includes the participating sites shown in appendix A

Vic Bowen Chief Operating Officer

Certification UK

Certificate number TT-COC-002097

Issue number: 2014-01

Date of initial certification: 19 May 2005

Certificate start date: 19 May 2015

Certificate expiry date: 18 May 2020

CERTIFICATE OF REGISTRATION

This is to certify that

Medite Europe Ltd Redmondstown Clonmel Co Tipperary Ireland

has been audited and found to meet the requirements of standard(s) FSC-STD-50-001 (Version 1.2) EN, FSC-STD-40-004 (Version 2.1) EN and FSC-STD-40-005 (Version 2.1) EN for FSC® Chain of Custody Certification

Scope of certification

The purchasing of pulpwood and sawmill co-products for the manufacturing and processing, sales and distribution of FSC certified Medite medium density fibreboard products and bark.

Products: Bark Medium density fibreboard

1

BRE Construction Division’s Quality Management System is approved to BSEN ISO9001:2000,certificate number LRQ 4001063

16 February 2011

Our Ref. 269-201

Properties of Medite Tricoya® and its possible application for use

We understand that you are conducting technical due diligence on the in-developmentproduct Medite Tricoya® which is a medium density fibreboard (MDF) manufactured usingacetylated wood fibres using the patented Titan wood process. We have conducted severalpieces of work for you including indicative testing of properties of the Medite Tricoya productand looking at market applications. This letter provides a summary of work on the in-development product Medite Tricoya® considering properties and the suitability forapplication in construction against a service life criteria.

Specifically you have requested that we provide you with comment regarding:

• The durability class of Medite Tricoya® compared to timber species commonly used

• The relation of durability class to compliance of products for life expectancy

To clarify this the example of exterior wood cladding is used in parts of this letter.

Specification of wood durability

The suitability of a timber species for use in UK construction must first consider the naturaldurability of the chosen timber species (EN 350-2: 1994) and note the intended end use (EN335-1: 2007) e.g. Use Class 3 for exterior wood cladding. EN 460 compares therequirements of Use Class with the natural durability and indicates whether natural durabilityis sufficient for the end use or whether preservative treatment is required. The EuropeanStandards related to specifying preservative treated timber, EN351-1 (2007) and EN 351-2

(2007) require the specification to be written in terms of the results of the treatment process. The standards for wood durability are typically based on wood preservatives delivering the enhanced protection. A required penetration of the preservative into the wood and the retention (concentration) of preservative within a defined zone (the analytical zone) of the treated timber is specified. EN351-1 (2007) lists options that can be used to specify penetration. The retention is specified in terms of the concentration of preservative formulation found to be effective in a series of standard biological test methods laid down in the European Standard EN599-1 (2009).

BS 8417 (2003) sets out a framework for UK specifiers to interpret the European standards and to base specifications on penetration and retention requirements thought to reflect what the old process specifications actually achieved. Provision is made in the document for the range of traditional preservatives with recommended penetration/retention combinations for different timber types, end uses and service life requirements. Guidance is also given for new preservatives whose performance is demonstrated by testing according to EN599-1 (2009) but which have little or no evidence from longer term tests or service data.

There are no standards specifically written to give guidance on or requirements for specification of acetylated fibre MDF.

Digest 429 or EN 350-2 Durability class

Western red cedar (Thuja plicata) old growth North America

2 (durable)

Siberian larch (Larix siberica) 3 (moderately durable)

Sapele (Entandrophragma cylindricum) 3 (moderately durable)

Scots pine (Pinus sylvestris) 4 (slightly durable)

Medite Tricoya® * 1 (very durable)

Preservative-treated wood† 1 (very durable)

* Sources of information are considered later in this document † The preservative treatment of ‘not durable’ or ‘slightly durable’ wood to a retention at the critical value (CV) or above derived from BS EN 599-1 enhances the wood to maximum durability as the <3% weight loss criteria in the test is equivalent to delivering durability class 1 ‘very durable’

Table 1. Examples of natural durability classifications for heartwood

Biological durability

An example is followed in this letter for an exterior wood cladding product.

In BS 8417 (2003) exterior cladding is noted as Use Class 3 (EN 335-1: 2007) application and a 15, 30 or 60 year service life is satisfied by choosing as a minimum a timber of natural durability class 4, 3 or 2 respectively (EN 350-1: 1994). In addition the service factor based on safety and economic factors is Class C where remedial action or replacement would be difficult and expensive thus natural durability or preservative treatment is desirable.

Natural durability refers to the ability of a wood species to endure, or resist deterioration, by virtue of its inherent properties. In the UK this typically refers to the ability to resist attack from wood-destroying fungi. This ability to withstand fungal attack is assessed in laboratory and field experiments in line with European standard tests, which for natural durability include long running ground contact field trials (EN 252: 1990). The assessment classifies each species heartwood into one of five different durability classes depending on their performance. The data is presented in BRE Digest 429 (1998) and examples are presented in Table 1.

Sources of information relating to the durability of Medite Tricoya® include: BRE report 266128 (2010) Determining the resistance of Medite Tricoya® against wood destroying basidiomycetes DD ENV 12038: 2002. This indicative biological test (Figure 1) has shown that:

• Medite Tricoya® is resistant to moisture uptake typically having a moisture content at the end of the test of between 15-30%, compared with 65-100% for Medite Exterior, 85-100% for solid wood and 140-210% for the Medite Premier product.

• Medite Tricoya® is fully resistant to decay by basidiomycetes fungi.

• Medite Exterior and Medite Premier are not resistant to decay by basidiomycetes fungi.

The test has shown the in-development product Medite Tricoya® is resistant to basidiomycetes fungi (brown and white rot). The acetylation of the fibre prior to MDF production enhances the wood to maximum biological durability. The <3% weight loss criteria in the test standard is equivalent to delivering a durability class 1 ‘very durable’.

Swedish project P804744 (2011) conducted by SP Wood Technology, Sweden. Durability of boards made from acetylated wood, against bacterial and fungal decay according to ENV 807 (naturally occurring fungi including soft rot). Whilst it is not recommended in EN 350-1 to use the ENV 807 results for calculation of durability class, the authors note the test data clearly indicates the increased durability gained by acetylation. Mass loss in untreated Scots pine sapwood was found to be 28.8-35.0% whilst mass loss in all the boards made from unmodified wood material, all exceeding

30%, irrespective of soil type and adhesive used. This contrasts with the mass losses for the acetylated boards, they were all less than 3%, irrespective of the adhesive used to manufacture the panel. This work is on-going.

0

10

20

30

40

50

60

Solid w ood Medite Premier Medite Red Exterior Medite Tricoya

mas

s lo

ss %

Coniophora puteana BAM 15 Gloeophyllum trabeum BAM 109 Pleurotus ostreatus FPRL 40C

Figure 1. Summary of average mass loss (%) in biological test DD ENV 12038: 2002. A mass loss of less than 3% (below the dashed blue line) indicates a material is fully resistant to decay by basidiomycetes.

Dimensional stability BS EN 942 (1996) notes in informative annex D dimensional movement as a serviceability aspect (small, medium or large) of timber for joinery and the suitability of timber species for external joinery. There are no specified requirements for dimensional movement of timber species for external cladding.

What is dimensional stability?

Dimensional stability (or anti shrink and swelling efficiency) is the ability of the wood to resist dimensional changes as the moisture conditions change. Data is presented as indicative movement classes in the Handbook of hardwoods (1972) and the Handbook of softwoods (1977) see Table 2.

Handbook of hardwoods Handbook of softwoods

Indicative movement class

Tangential and radial movement from 90%RH and 60%RH

Western red cedar small 1.9% and 0.8%

Siberian larch small 1.7% and 0.8% data for Larix decidua

Sapele medium 1.8% and 1.3%

Douglas fir small 1.5% and 1.2%

Scots pine medium 2.1% and 0.9%

Medite Tricoya® * small -

* A source of information is considered below

Table 2. Examples of movement classes for wood species.

A reference relating to the dimensional stability of Medite Tricoya® is:

WKI Report BauKo-2009-16 (2009) Investigation concerning the durability of different acetylated and non-acetylated boards: Results from exposure tests by WKI Fraunhofer, Braunschweig. WKI produced samples from various combinations of acetylated material (fibres, particles, strands) and adhesive. Tests of thickness swelling, length swelling, water absorption, bending strength, bending modulus of elasticity, internal bond strength and pull out resistance are presented. The exposure tests were based on procedures normally used for fibre-cement panels. WKI also tested the relative performance against commercially available panels for exterior use and conclude the wood based panel products made of acetylated fibre were significantly more stable than the other wood based board products. The authors concluded the acetylated products show great promise as panels in wooden facades for cladding subject to coatings stability tests.

Substrates that are dimensionally stable in changing conditions of relative humidity and moisture availability exert less stress on any applied surface coating which extends the life of the coating and the intervals between necessary maintenance.

Creep and duration of load

BRE Report 266130 (2010) An assessment of the creep and duration of load behaviour of Medite Tricoya®: These tests indicate that Medite Tricoya® is a strong, stable and creep resistant material whose behaviour does not follow that of a normal wood-based MDF type board product. The moisture resistant nature of the product ensures the material shows very little or no reaction to high humidity environments, unlike other MDF type products.

Considering its inert behaviour, the results gained from these tests can be difficult to interpret. However, it is clear that the Medite Tricoya® has superior creep resistance properties compared with other MDF type products.

Monitoring of the creep behaviour of the samples continues to gain a greater understanding of long term behaviour.

Resistance to weathering

BRE Report 266138 (2010) Accelerated weathering of Medite Tricoya®: These tests indicate that Medite Tricoya is a material of good weather resistance whose behaviour does not follow that of a normal wood-based MDF type board product. The moisture resistant nature of the product ensures the material shows reduced reaction to high humidity environments and moisture stress, unlike other MDF type products.

The indicative weathering tests have shown that:

• The overall colour change derived from the differences in the L*a*b* colour space show that the Medite Tricoya® samples are more colour stable than the other MDF samples.

• The Medite Tricoya® samples showed a noticeable roughening of the surface texture on all of the tests but no micro cracking and no delamination was observed. Medite Tricoya® appears more stable than the other MDF samples in this severe exposure environment.

• The MDF samples revealed greater fibre loosening at the surface compared with the Medite Tricoya® samples. For both materials the UV and freeze exposed specimens produced the most fibre loosening.

• The internal bond strength of unaged Medite Exterior (1.70 MPa) was greater than the Medite Tricoya® (1.35 MPa). The internal bond strength of the Medite Tricoya® was less affected (e.g. 14% lower after UV and boil) by the weathering exposure regimes than the Medite Exterior (e.g. 47% lower after UV and boil).

British Standards for life expectancy

As there are no existing standards specifically for acetylated fibre MDF it is reasonable to try and consider the materials natural durability class. This is noted as a departure from established UK custom and practice. BS 8417 (2003) links the durability requirement for external joinery to a service life. For exterior joinery a 15, 30 or 60 year service life is satisfied by choosing as a minimum a timber of natural durability class 4, 3 or 2 respectively. In addition the service factor based on safety and economic factors is Class C where

remedial action or replacement would be difficult and expensive thus natural durability or preservative treatment is desirable.

The indicative evidence shows that the performance of the in-development product Medite Tricoya®:

• Is resistant to attack by basidiomycetes – equivalent to durability class 1

• Improves dimensional stability

• Improves creep resistance

• Improves resistance to weathering of the wood surface

Suitable applications for Medite Tricoya

BRE Report 266890 (2010) Pricing overlay for Medite Tricoya® end use applications - UK market opportunities report: This report presents the outcome of an evaluation of the influence of price on UK market share for the end use application analysis of Medite Tricoya®. The report presented a total of 22 end use applications. The main volume opportunities for Medite Tricoya® are considered to be as a multi-functional board, window components, decking, cladding panels, engineered flooring, shop fronts and other end uses that utilise the superior exterior weather performance, stability and durability of the Medite Tricoya® product.

Conclusion

An exterior joinery product (such as a cladding panel) prepared from Medite Tricoya®, is likely to show significantly improved coating performance properties. If the cladding is designed and built to the principles of best practice (to minimise moisture ingress and maximise water shedding), factory finished using quality coatings it will provide exterior joinery of outstanding durability and dimensional stability that would be likely to meet a 60 year service life requirement.

The certified environmental profiles of existing Medite MDF products consider the life cycle impacts of the products from cradle to grave. The green book live lists (www.greenbooklive.com) these products as part of internal and external wall functional units where they meet Green Guide ratings of A or A+. These are amongst the most sustainable functional unit solutions. The stability and durability of Medite Tricoya® offers potentially more than this and if commercialised will ensure continuous improvements in sustainability associated with the product.

Future opportunities for Medite Tricoya® seem promising. As the construction industry requires materials and products that are robust, reliable and engineered to meet service life demands. The achievement of enhanced service life such as Medite Tricoya® seems to offer ensures maximising the sustainability across the life cycle of the construction product. The

proposition of a stable, durable, easy to machine, easy to coat wood based panel product has great opportunity to capture new markets and regain old both from non-wood based competitors as well as substitute old products.

Yours sincerely

Dr E D Suttie Director, Timber For and on behalf of BRE Telephone: +44 (0)1923 664158 E-mail: suttiee@bre.co.uk References cited in this letter: BS EN 350-1 (1994) Durability of wood and wood-based products - Natural durability of solid wood Part 1 Guide to the principles of testing and classification of the natural durability of wood. British Standards Institute, London. BS EN 350-2 (1994) Durability of wood and wood-based products - Natural durability of solid wood Part 1 Guide to the natural durability and treatability of selected wood species of importance in Europe. British Standards Institute, London. BS EN 335-1 (2007) Hazard classes of wood and wood based products against biological attack Part 1. Classification of hazard classes. British Standards Institute, London. BS EN 460 (1994) Durability of wood and wood-based products. Natural durability of solid wood. Guide to the durability requirements for wood to be used in hazard classes. British Standards Institute, London. BS EN 351-1 (2007) Durability of wood and wood-based products. Preservative-treated solid wood. Classification of preservative penetration and retention. British Standards Institute, London. BS EN 351-2 (2007) Durability of wood and wood-based products. Preservative-treated solid wood. Guidance on sampling for the analysis of preservative-treated wood. British Standards Institute, London. BS EN 599-1 (2009) Durability of wood and wood-based products. Performance of preservatives as determined by biological tests. Specification according to hazard class. British Standards Institute, London. ISO 2859-1 (1999) Sampling procedures for inspection by attributes. Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection. British Standards Institute, London. BS 8417 (2003) Preservation of timber – Recommendations. British Standards Institute, London. EN 252 published as BS 7282 (1990) Field test method for determining the relative protective effectiveness of a wood preservative in ground contact. British Standards Institute, London. BRE Digest 429 (1998) Timbers; their natural durability and resistance to preservative treatment. BS EN 113 (1997) Wood preservatives. Test method for determining the protective effectiveness against wood destroying basidiomycetes. Determination of the toxic values. British Standards Institute, London

BS EN 84 (1997) Wood preservatives. Accelerated ageing of treated wood prior to biological testing. Leaching procedure. British Standards Institute, London DD ENV 807 (2001) Wood preservatives. Determination of the effectiveness against soft rotting micro-fungi and other soil inhabiting micro-organisms. British Standards Institute, London BS EN 942 (1996) Timber in joinery – General classification of timber quality. British Standards Institute, London. Handbook of hardwoods (1972) 2nd Edition revised by R.H. Farmer, Department of the Environment Building Research Establishment Princess Risborough Laboratory. Published by HMSO. Handbook of softwoods (1977). Department of the Environment Building Research Establishment Princess Risborough Laboratory. Published by HMSO.

www.meditetricoya.com www.medite-europe.com www.mdfosb.com

MEDITE®TRICOYA® EXTREME Certificate of Warranty (the “Warranty”) 16/05/2017

Medite Europe DAC Redmondstown

Clonmel Co. Tipperary,

Ireland T: +353 52 618 2300 F: +353 52 612 1815 E: info@mdfosb.com

1 Scope of the Warranty

1.1 This Warranty is provided by Medite Europe Limited (hereinafter “MEDITE”, which expression shall include its successors or assigns) and applies exclusively for MEDITE® TRICOYA® EXTREME product of MEDITE, meaning the raw panel or substrate (hereinafter “MEDITE TRICOYA EXTREME”), as herein provided.

1.2 MEDITE warrants that from the date of delivery of the MEDITE TRICOYA EXTREME as stated on its invoice (hereinafter the “Date of Delivery”), that the MEDITE TRICOYA EXTREME shall comply with its specification (at the Date of Delivery), as contained on its web-site: www.meditetricoya.com or as otherwise provided by MEDITE and shall remain free of Material Damage (as defined in paragraph 2 below) from the Date of Delivery of the MEDITE TRICOYA EXTREME for a period of:

(a) 50 years when the MEDITE TRICOYA EXTREME is used in use classes 1,2 and 3 as defined in EN 335-1-2006 (the British adopted European Standard, which is available on the British Standard’s Institution web-site), or

(b) 25 years when the MEDITE TRICOYA EXTREME is used in use class 4 as defined in EN 335-1-2006.

2. Definition of Material Damage

2.1 For the purpose of this Warranty, MEDITE TRICOYA EXTREME shall be deemed to have suffered Material Damage if it is shown that in ordinary course of use:

(a) MEDITE TRICOYA EXTREME has been materially damaged by fungal decay (for the purposes of this Warranty fungal decay shall mean and be limited to decay caused by fungal the species (i) Coniophora puteana, (ii) Gloeophyllum trabeum, (iii) Pleurotus Ostreatus and shall not include common surface mold, mildew or any other organism, bacteria or fungi); or

(b) the maximum swell or shrinkage in one direction is greater than 2.5% during the ordinary course of use; and

(c) in the case of both (a) and (b) above, such that the MEDITE TRICOYA EXTREME does not perform its intended function.

For the purpose of paragraph 2.1 (b) above, swelling and shrinkage can only be validated by removal and testing that the shrinkage or swell is greater than 2.5% from fully saturated to oven dry according to standard tests (details of which are available from MEDITE), performed by an independent research institute approved in writing by MEDITE.

www.meditetricoya.com www.medite-europe.com www.mdfosb.com

3. Remedy

MEDITE shall, at its sole option, either replace, repair or compensate for any MEDITE TRICOYA EXTREME which has suffered vouched Material Damage from the Date of Delivery until the expiry of the appropriate period as set out at paragraph 1.2 above. Any remedy as provided in this Clause 3 shall be limited to a maximum of the value of the original MEDITE invoice for the MEDITE TRICOYA EXTREME utilised.

4. Exclusions of Remedy and Warranties

4.1 MEDITE shall under no circumstances be liable, whether in contract, tort (including negligence), breach of duty (whether statutory or non-statutory) or otherwise, for any incidental, economic, exemplary, special, punitive or consequential losses or damages, whether direct or indirect, howsoever arising.

4.2 The statements in this Warranty constitute the only warranties and assurances given by MEDITE and all other express or implied warranties and assurances, including any implied warranties and assurances of merchantability or fitness for a particular purpose are herein expressly excluded (to the extent that such can be lawfully excluded).

5. Conditions

This Warranty shall be subject to the following terms and conditions:

5.1 Claims must be made in writing to MEDITE within 30 days after discovery of suspected Material Damage, and must be accompanied by this certificate of Warranty, a copy of the relevant invoice(s), a statement identifying the location and describing the suspected Material Damage together with photographs showing the suspected Material Damage.

5.2 MEDITE reserves the right to inspect the suspected Material Damage in situ prior to the authorisation by MEDITE, in its sole discretion, of any repair, replacement or compensation. From the date a potential claim is detected, the claimant must take all reasonable steps to protect the MEDITE TRICOYA EXTREME from further Material Damage.

5.3 MEDITE TRICOYA EXTREME must be stored, installed, handled and/or used (to include its cladding board and panel applications) in accordance with MEDITE’s written instructions (as contained on its web-site: www.meditetricoya.com or as otherwise provided by MEDITE) and in accordance with all certification bodies codes and building codes adopted by federal, central, state or local governments or government agencies and applicable to the installation. Failure to install MEDITE TRICOYA EXTREME in accordance with MEDITE’s written instructions will invalidate this Warranty.

5.4 This Warranty does not cover the costs associated with removal of damaged MEDITE TRICOYA EXTREME or installation of replacement MEDITE TRICOYA EXTREME wood or any remanufacturing costs.

5.5 Failure to follow the procedure in this Clause 5 may invalidate any claim under this Warranty.

6. Exclusions

This Warranty does not cover:

6.1 Any use of the MEDITE TRICOYA EXTREME in the relevant use class that contravenes the requirements set out in EN 335-1-2006. Where the end product does not comply with the established norms for water drainage or water evaporation or is positioned less than 20 cm above ground it shall be deemed to be class 4 and the 25 year warranty will apply.

6.2 Any contact between MEDITE TRICOYA EXTREME and liquids that have a pH higher than 9;

6.3 Any continual contact between MEDITE TRICOYA EXTREME exposed to salt and brackish water (use class 5 according to EN 335-1-2006);

6.4 Any MEDITE TRICOYA EXTREME subsequently modified or impregnated, for example by chemical treatments, without the prior written approval of MEDITE;

www.meditetricoya.com www.medite-europe.com www.mdfosb.com

6.5 Damage or defects resulting from or in any way attributable to:

(a) improper storage, handling, installation or use of the MEDITE TRICOYA EXTREME, including but not limited to any damage where MEDITE’s written instructions have not been followed;

(b) misuse, neglect, alteration or abuse of the MEDITE TRICOYA EXTREME;

(c) settlement or structural movement and/or movement of materials to which the MEDITE TRICOYA EXTREME is attached;

(d) damage from incorrect design of any structure or where the maximum designed wind loads are exceeded for any structure;

(e) finishes as applied to MEDITE TRICOYA EXTREME;

(f) acts of God, such as hurricane, tornado, hail, earthquake, flood or other severe weather or natural phenomena; or

(g) any cause other than manufacturing defects attributable to MEDITE.

6.6 MEDITE TRICOYA EXTREME stored, installed, handled and/or used (to include its cladding board and panel applications) in the jurisdictions of the United States of America and/or Canada.

7. Notices

Any notices or communications to be given pursuant to this Warranty shall be in writing and shall be deemed duly given or made, if delivered by hand or sent by registered post to the registered office address or principal place of business or residence and for the attention of the Company Secretary (or such other relevant person or party if there is no such Company Secretary). Every notice or communication given in accordance with this clause shall be deemed to have been received, the day of delivery, if delivered by hand and duly receipted OR 7 days after posting by registered post, whichever is applicable. Where such notice or communication is deemed to be given or made outside normal working or business days, such notice or communication shall be deemed to be given or made at the start of the next working or business day.

8. Governing Law and Disputes

This Warranty is governed by the laws of Ireland and subject to the exclusive jurisdiction of the courts of Ireland or to arbitration, at the discretion of MEDITE.

MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. The Tricoya® name and the trimarque device are registered trademarks owned by Titan Wood Limited and may not be used or reproduced without written permission.

ON

Contents Storage and Handling ………………………………………. 4

Usage ………………………………………. 5

Wood Moisture Content ………………………………………..5

Cutting and Machining ………………………………………. 6

Screws and Fasteners ………………………………………. 7

Gluing ….……………………………………. 8

Painting ………………………………………. 9

Outdoor Use ………………………………………. 9

Weathering Effects on uncoated MTE ………………………………………. 10

Enhanced Dimensional Stability ………………………………………. 10

Thermal Resistance ………………………………………. 10

Waste Wood and End of Life Considerations ……………………………………….10

4 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

MEDITE TRICOYA EXTREME Packages

All MEDITE TRICOYA EXTREME undergoes inspection before leaving the plant. MEDITE TRICOYA EXTREME is strapped with binding tape into standard labeled packs, each with a unique number.

Storage and Handling

The method of manufacturing MEDITE TRICOYA EXTREME ensures a balanced construction resulting from the uniform distribution of fibres throughout the panel thickness. The maintenance of this inherent flatness is dependent upon the use of correct storage and handling procedures. Without these, boards may develop a permanent set under their own weight, particularly if not adequately supported on a flat pallet or by insufficient bearers during any storage period. The following procedures must be observed:

1. MEDITE TRICOYA EXTREME should be stored horizontally in dry conditions and lifted clear of the floor using dry bearers as supports.

2. Where individual bearers are used, they should be of equal thickness and placed at not more than 800mm centres for boards of 15mm thickness and upwards, subject to a minimum of three bearers. Closer spacing is required for thinner boards.

3. The bearers supporting successive layers should be in vertical alignment. 4. Stacks of boards should have flush sides to minimise damage to protruding

edges or over-hanging corners. 5. The storage area should be well ventilated and the conditions should be

reasonably dry. 6. To prevent the boards getting wet during storage and on site, it is

recommended that MEDITE TRICOYA EXTREME is covered with a “vapour-open” plastic.

7. As with general storage conditions, storage at the building site should be a minimum of 10cm above concrete flooring and 30cm above ground.

ON

5 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

Traceability: MEDITE TRICOYA EXTREME is primarily identified by its packaging labels, which feature the MEDITE TRICOYA EXTREME and Coillte Panel Products logos. In addition there is a single white 5cm stripe line marked on both long sides of the board pack and reference number printed on the corner of the board. In case of doubt, we will verify the product’s authenticity. MEDITE TRICOYA EXTREME can be traced by this reference number and its packaging label. It is therefore imperative to retain all relevant documents and to record the movements of each package through to the manufacture of the products. This tracking is also needed if you intend to offer products with certified sustainable wood certifications. The board printed reference number is to be quoted in the case of any queries, complaints or warranty claims.

Information Transfer: It may be important to inform the principal and third parties doing installation that MEDITE TRICOYA EXTREME has been used in the production of your product. Portions of this guide such as proper storage to the building site, appropriate fasteners and fixtures to use for final installation and related considerations should be communicated.

Usage

MEDITE TRICOYA EXTREME may be used in exterior or interior wetted applications. It may be used as a substitute for treated softwoods, hardwoods, high grade exterior plywood’s, plastic, cement based, metal or composite materials. It may be used for a wide range of applications including exterior cladding or façades, shop fronts, signage, exterior doors, garden or outdoor furniture, playground equipment, backing boards, cubicles & wet rooms, flooring, marine fit out and more. MEDITE TRICOYA EXTREME is inherently stable and durable.

Wood releases moisture in dry climates and absorbs moisture in humid conditions. The moisture within wood takes two forms: “free water”, which is contained in the cell cavities (or lumen), and “bound water”, which is contained in the cell wall matrix. While MEDITE TRICOYA EXTREME in any conditions will have minimal bound water, which is what accounts for many of its superior properties, it can still contain free water. Final product quality can be harmed by excessive free water; it is therefore essential that the moisture content of the wood is determined prior to processing, gluing and coating.

Wood Moisture Content

Medite supplies MEDITE TRICOYA EXTREME from the factory in a dry condition (wood moisture content 3– 5%). If the measurement shows a moisture content of 8% or more this may indicate the presence of “free water” and the MEDITE TRICOYA EXTREME should be allowed to dry before processing, gluing or coating.

Processing of MEDITE TRICOYA EXTREME does not affect its unique properties, such as durability and dimensional stability, as the MEDITE TRICOYA EXTREME is modified throughout the cross section. MEDITE TRICOYA EXTREME is easy to process and can be compared, in general, to standard MDF. Special tools are not required, for example, to do cross cutting, ripping, planing, routing, or drilling. Sanding before finishing is often not required, but is dependent on required end finish.

It should be noted that a light vinegar smell may become apparent when using MEDITE TRICOYA EXTREME. With proper suction/ventilation this can be reduced to a minimum. Health and safety tests have been successfully performed against a wide range of tests in many countries and have shown no issues.

As with other wood species with higher acid levels, caution should be taken to prevent long term exposure of wood machinery and exhaust systems to dust and shavings to prevent corrosion.

6 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

Prior to machining or further processing, the board moisture content should be checked. A moisture content reading, showing < 8%, indicates suitability for processing.

Cutting and Machining

MEDITE TRICOYA EXTREME can easily be cut, shaped, routed, molded and bored with conventional wood working equipment and tools.

Tool wear rates on MEDITE TRICOYA EXTREME are similar to wear rates on Medite MDF. In general, MEDITE TRICOYA EXTREME is denser and slightly more abrasive than common hardwoods. As steel-tipped tools dull quickly, carbide-tipped tools are recommended for normal work on any scale. Diamond- tipped tools may be best for very high volume operations. The greater cost of these cutters is offset by less re-sharpening and more consistent cut edges.

Saw blades used for particleboard are normally satisfactory. Compared to saw blades for solid wood, all types of MDF saw blades require higher clearance and increased tooth angles (Consult tool suppliers for further guidance).

One of the prime features of MEDITE TRICOYA EXTREME is its clean edge and face machining characteristics. Contoured designs are almost unlimited. However, care must be taken in the selection of profiles, as the presence of sharp corners or narrow sections will alter the uniformity of paint coverage and reduce the resistance of profiled edges to impact damage.

When machining MEDITE TRICOYA EXTREME, as with any MDF, cutter angles are important. A large hook angle is required to ensure clean cutting with minimum wear of the cutting tip. A large clearance angle prevents the back of the cutter from rubbing against the machined edges. The increase in both these angles is limited by the requirement to maintain adequate strength at the tool tip.

Cutters for all types of MDF are normally supplied with angles in the following ranges: Cutting (hook) angle: 10 to 20 degrees Clearance angle: 20 to 22 degrees

To minimise sanding after machining, feed speed should be selected to produce at least 8 cutter marks per cm. This can be compared to 6 cutter marks per cm which would be acceptable in a typical solid wood machining operation. Achieving the recommended cutter marks per cm is a function of material feed speed, the number of cutters and the rotational speed of the cutting block. The optimal feed speed for each cutting block can be calculated as follows:

Feed Speed (m/min.) = RPM x No. of cutter edge

100 x cutter marks / cm

At lower feed speeds, the cutters will compress and abrade the panel. The resulting high pressure on the tips and increasing temperature due to frictional heat will reduce the life of the cutters between sharpening. At higher speed, a greater spacing between cutter marks will increase roughness, thereby necessitating more sanding to achieve the required level of smoothness before finishing. Dust Removal During Machining: Efficient dust removal for all cutting and machining operations helps to prolong tool life, by reducing potential overheating of the cutting tool. A minimum air velocity of 23-30 m/sec is recommended for dust extraction

7 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

Sanding: Carbide-based abrasives are generally recommended for sanding MEDITE TRICOYA EXTREME. A modified “closed coat” abrasive is also recommended. This combines the smoother finishing properties of “closed coat” systems with resistance to fine dust clogging of “open coat” systems.

Face Sanding: MEDITE TRICOYA EXTREME is shipped with a 150 grit final factory finish. This provides an excellent smooth surface, ideally suited to the direct application of most veneers, plastic foils, HPL’s and painting. Scuff sanding, with the object of increasing adhesion may be detrimental to surface quality. Deep sanding of the faces of MEDITE TRICOYA EXTREME with the object of reducing thickness is not recommended. Heavy one-side sanding should also be avoided to prevent warping.

Edge Sanding: Cut edges may require sanding with a 150-240 grit paper. This sanding is useful for cleaning up “fibre nap”.

Dust Extraction During Sanding: During the sanding operation, MEDITE TRICOYA EXTREME produces a very fine light dust, in common with all MDF material. As with all fine dusts, a common sense approach to safe working conditions must be adopted.

An efficient dust extraction system is essential during automatic sanding, both for performance and life of sanding belts and operative comfort. A minimum air velocity of 23-30 m/sec is recommended for dust extraction.

During hand sanding, the wearing of dust masks is recommended, to protect the operative from inhalation of fine particles.

Screws and Fasteners

All wood contains organic acids, although the quantity varies by species. These organic acids are the main cause of corrosion of metal fasteners used in wood. MEDITE TRICOYA EXTREME being manufactured from an Acetylated wood contains very small acid levels comparable to other durable species such as oak and western red cedar.

Always attach MEDITE TRICOYA EXTREME with stainless steel fasteners with A2 or A4 (EN 10088-1) quality or AISI type 304 or 316 when possible.

Screws should be of parallel core type. Pilot holes are required to 85-95% of screw root diameter, unless self-piloting screw types are used. Pilot holes are of particular importance when screwing into board edges and should be drilled a minimum of 1 mm beyond the depth of the screw into the board.

Screws should not be located too closely to the corners of panels. In general, a screw driven through the face of a board should be at least 25mm from the edge and at least 75mm from corners on the edges. Where other methods of fixing are not practicable, small diameter Stainless Steel nails can be used successfully provided they are not closer than 70mm to a corner when inserted into board edges. They should be spaced at least 150mm apart to reduce the risk of core delamination. Improved holding power in the edges can be achieved by using ring shank nails and inserting them at a small angle to the perpendicular

Tests have shown that base metals and galvanized metals that are in direct or indirect contact with wood containing acids will corrode in damp climatic conditions. It is therefore recommended that high quality stainless steel products be used where possible. When stainless steel is not available, metals and/or the MEDITE TRICOYA EXTREME should be coated or otherwise separated to avoid the two coming into direct contact. Indirect contact issues can occur in non-ventilated areas where condensation related corrosion is possible (for example, lock rebates). As with any installation, pit or

8 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

galvanic corrosion must also be avoided by using fasteners that are compatible with the metals used in hinges, locks and other hardware. Testing and experience to date with the use of brass, common types of anodized aluminium (6063, 6082) and chrome plated steel have been very positive. However your fixings supplier should be consulted to avoid any issues.

Panels should be fitted with spacers and not fitted flush to any masonry or brickwork. Expansion gaps MUST be fully filled with an elastic sealant (suitable mastics or silicone) at the time of fixing.

Fixing Centres: MEDITE TRICOYA EXTREME is a non-structural panel and therefore the distances between the supports can be crucial to its ultimate performance. It is essential that in the design, an allowance for a small degree of movement (see Technical Specification Sheet) be provided. Maximum recommended spans between fixing centres in non-wind exposed areas are shown in table 2. If MEDITE TRICOYA EXTREME is to be used as a panel in wind exposed areas, professional advice should be sought from a suitably qualified person as to the spacing and number of fixings required due to wind loadings.

TABLE 2 - RECOMMENDED FIXING CENTRES (non-wind exposed)

Thickness Recommended fixing centres

6 - 9 mm - 300mm

12 mm - 450mm

15 mm - 600mm

18 mm - 750mm

Gluing

As with all wood species, the right choice of glue will depend on the application and the required performance of the glue bond.

Wood adhesives are classified according to EN204 into 4 main classifications, classes D1-D4. The applications that MEDITE TRICOYA EXTREME will be experiencing lead to a requirement for D3 & D4 class adhesives.

MEDITE TRICOYA EXTREME has been tested with various types of adhesives for many applications. In general MEDITE TRICOYA EXTREME can be glued using PVA, PU, RPF, or EPI wood adhesive systems.

PVA (polyvinyl acetate): gives thin joint, thermoplastic, some flexibility (depending on classification), easier application and cleaning. Comes in all classifications D1-D4.

PU (polyurethane): Classification D4. The joint will swell slightly as the adhesive swells when curing, so need a very clean surface to lay a material onto it, and may need to cut the excess depending on finish required. The joint will be rather flexible but "full of air' as it will swell. RPF (Resorcinol phenol formaldehyde): D4 waterproof and resistant to some chemicals. Two part adhesive, gives a reddish brown glue line. Excellent mechanical strength; can be used hot or cold.

EPI (Emulsion polymer isocyanate): D4 two part adhesive, high strength, high water

9 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

resistance, good resistance to creep.

Changed Properties: Comprehensive testing has shown that MEDITE TRICOYA EXTREME has good gluing properties. However, it is imperative that the product’s modified properties are taken into account. This is of particular importance because common wood adhesives (PVA, EPI, PU, and PRF) either harden on contact with moisture or part of the water content of the adhesive needs to be absorbed by the MDF.

The acetylation process substantially reduces the ability of the wood to swell. This can impact properties such as the ability of joints to ‘self-clamp’. Another effect is that the equilibrium moisture content of MEDITE TRICOYA EXTREME is substantially lower than untreated MDF in the same climatic conditions. While this makes MEDITE TRICOYA EXTREME dimensionally very stable, it can mean that absorption properties of the board are different due to the hydrophobic nature of the surface in its first minutes. Adhesives that require water as a catalyst and those consisting of two or more components that could migrate differently may have weaker bonds.

When gluing MEDITE TRICOYA EXTREME it is strongly recommended to test first and if needed contact your adhesive supplier(s) as they have in-depth knowledge of the gluing process and their adhesives.

Painting

Water based paint systems may be used to decorate MEDITE TRICOYA EXTREME. To achieve a good painted surface finish, edge sealing is recommended. Because of MEDITE TRICOYA EXTREME’s exceptional dimensional stability, extended paint guarantees are available from some paint Manufacturers. - See download section on Coating Guarantees.

MEDITE TRICOYA EXTREME’s compatibility with various coating systems compares well with standard MDF in general and it may be finished with commonly used products.

Note: Coating formulations vary from supplier to supplier and, processes vary depending on the application equipment used and end-product design. It is recognised that formulations of some suppliers’ products also vary by geography. Despite MEDITE TRICOYA EXTREME’s excellent record of compatibility, it is recommended that your coating supplier is involved in the process. The coating supplier will have in-depth knowledge of its products, application and how to determine the performance of the finished product from a technical performance perspective, in respect of attributes such as durability and dimensional stability.

Outdoor Use

MEDITE TRICOYA EXTREME does not require finishing to maintain its durability and dimensional stability. However, as with all natural woods, MEDITE TRICOYA EXTREME is susceptible to weathering in outdoor exposure, and this can detract from its aesthetic appeal.

When used unfinished, weathering causes MEDITE TRICOYA EXTREME boards to discolour and develop a rougher surface texture. Discolouration can also occur around metal fasteners or through exposure to aggressive cleaning agents, foods and other substances.

A suitable external wood primer, applied to the manufacturer’s specification, will protect against staining and discolouration during shipment and installation, while a high quality exterior topcoat, either factory or site applied will provide extended decorative performance in service.

10 MEDITE® is a registered trade mark of Medite Europe Limited and cannot be used or reproduced without our written permission. MTESHUI V13 09.16

Weathering Effects on uncoated MEDITE TRICOYA EXTREME

Used outdoors, uncoated MEDITE TRICOYA EXTREME, eventually “greys” due to biological processes taking place within the wood fibres on the board surface:

x UV light partly degrades substances in the MEDITE TRICOYA EXTREME’s structure. These substances are water-soluble and the surface of the MEDITE TRICOYA EXTREME pales when, for example, they are washed off by rain. Similar processes occur on all natural timbers which, depending on the species, become lighter or darker on weathering.

x UV degraded wood has a more open/rough structure and under certain conditions becomes more susceptible to moulds, mosses and algae settling and growing on the surface

Though unsightly, moulds, stains, mosses and algae do not cause rot within MEDITE TRICOYA EXTREME. Where a good aesthetic appearance is required, a good quality coating system will protect against weathering and minimise discolouration.

Enhanced Dimensional Stability

MEDITE TRICOYA EXTREME exhibits enhanced dimensional-stability but this does not mean it is completely inert. Changes in temperature and humidity can cause slight changes in MEDITE TRICOYA EXTREME’s volume and linear dimensions.

When fixing the product to various substrates consideration should be given to the combined dimensional movement of both the substrate and MEDITE TRICOYA EXTREME. As a general rule of thumb allow an expansion gap of 5 mm/2440 length of board for ease of maintenance and any combined system expansion that may take place.

Thermal Resistance

Thickness (mm) R Value (m2 K/W)

MEDITE TRICOYA EXTREME

6 0.056 MEDITE TRICOYA EXTREME

9 0.085 MEDITE TRICOYA EXTREME

12 0.114 MEDITE TRICOYA EXTREME

15 0.150 MEDITE TRICOYA EXTREME

18 0.180

Waste Wood and End of Life Considerations

MEDITE TRICOYA EXTREME waste can be handled in the same way as normal MDF. MEDITE TRICOYA EXTREME is non- toxic and does not require any special disposal considerations. Given its long life, multiple applications and non-toxicity, MEDITE TRICOYA EXTREME is suited to re-use and recycling.

As we continually update our technical literature, please check on www.meditetricoya.com that you have the latest version.