06 aug. 15 version 1 - clelands timber · 2018. 4. 18. · 06 aug. 15 version 1.3. 1 ... 61 katere...

06 Aug. 15 Version 1.3

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Clelands Timber Products Limited, 61 Katere Road, PO Box 3240, New Plymouth 4341phone. 0800 100 095 fax. 0800 114 488 email. [email protected] www.clelands.co.nz

Clelands Timber CodeMarked Weatherboard Cladding

Table of Contents

Page1. Scope 3

2. Critical System Components 4

3. Proprietary System Components 6

4. Installation Preparation 6

5. Installation Fixing Details 9

5.1 Bevel Back 9

5.2 Rusticated 23

5.3 Vertical Shiplap - Cavity Batten Fixing 39 - Direct Fix 54

6. Paint Finish Weatherboards 68

7. Contact Details 68

8. Disclaimer 68

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1. Scope1.1 Intended UseClelands CodeMarked weatherboard system is designed for use as cladding for residential and small commercial buildings that fall within the scope of NZ3604. It is only suitable for buildings with a ‘Risk Score’ of 20 or below as per the ‘Weather Tightness Matrix’ outlined in E2/AS1. Refer to the Department of Building and Housing’s booklet titled ‘External moisture - a guide to using the risk matrix’ for more information.

1.2 Product InformationClelands fingerjointed weatherboards are produced from plantation grown Radiata Pine. When fingerjointed, this product exceeds its original physical and structural properties. The timber is kiln dried to between 8-14% moisture content for stability then machined to its finished form and treated using a light organic solvent preservative H3.1 designed specifically for exterior applications. Once treated the timber is factory coated with an architectural primer.

In low risk situations, Clelands weatherboards can be fixed directly to the studs.

a) For Bevel Back weatherboards when the risk score is 12 or below.

b) For Rusticated weatherboards when the risk score is 6 or below.

c) For Vertical Shiplap weatherboards when the risk score is 6 or below.

For all situations when the risk score exceeds the above, cavity battens are required, or Cavibat extruded plastic battens are.

When using components not produced by Clelands such as flashings, sealants, paint etc. please at all times follow the manufacturer’s recommended instructions. As the installation of the products rely on factors beyond Clelands control, Clelands assumes no responsibility for any work or systems used in conjunction with the installation of our products and their suitability to satisfy Building Codes or Council requirements.

1.3 PerformanceWhen installed and maintained as specified by a qualified tradesman using accepted trade practices it will meet the following requirements of the NZBC (New Zealand Building Code as contained in the Building Regulations Act 1992):

• B1 Structure

• B2 Durability

• E2 ExternalMoisture

• F2 HazardousBuildingMaterial

1.4 Wind ZonesThissolutionisonlyacceptableforwindzonesuptoand including ‘Very High’ as defined in NZS3604. Extra Highwindzoneswillrequirearigidunderlayandlargerflashings.

1.5 Minimum LifeAll weatherboards have minimum 15-year durability as required by NZS3602, given normal maintenance.

1.6 Serviceable LifeIn addition to the above minimum life, this H3.1 fingerjointed preprimed cladding system is expected to have a serviceable life of at least 30-years subject to installation, painting, coating and maintenance requirements as specified in this manual.

1.6.1. Coating and PrimingAlthough these are factory-coated products, on-site finish coating will be required to achieve serviceable life span.

The use of sealants between the Weatherboard laps will void any warranty of Clelands Timber Products Limited because this reduces ventilation, traps in any moisture and inhibits natural movement.

All coating is to be done according to coating manufacturer’s instructions in a well-ventilated area. Refer to the coating/primer supplier for all matters relating to health and safety. All relevant sections of standard AS/NZS 2311:2009 (Guide to the painting of buildings) shall be adhered to.

Amendment to 1.6.1 approved 8th May 2015.

1.6.2. MaintenanceThe life spans specified above apply to structural performance and weather tightness only. Appearance will degrade over time if maintenance requirements are not adhered to in accordance with the maintenance section of this manual.

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1.7 Handling• Weatherboardsandaccessoriesmustbekept

clean, dry, under cover and out of the weather prior to installation.

• Timbermustbestoredhorizontallyonbearersat1200mm spacing at least 100mm off the ground.

• Weardustmask,gloves,earandeyeprotectionwhen working with timber.

1.8 Resource and forestry certificationAll timber for Clelands CodeMarked weatherboards is sourced from plantation forests in New Zealand. Generally the products are supplied as FSC (Forest Stewardship Council) Mixed Credit CoC certified. FSC Pure certification is available on request FSC No.COC-006055.

1.9 Limitations• ClelandsCodeMarkedweatherboardsmustbe

installed by a Licensed Building Practitioner.

• Thisdocumentisnotexhaustiveinitsscope.Responsibility for design lies with the specifier or responsible party for the project to ensure the final design meets the requirements of the intended application and the NZBC.

• Fordesignsoutsidethescopeofthistechnicalspecification, specific design must be undertaken by the architect or designer.

2. Critical System Components2.1 Paint Finish Weatherboards2.1.1 Horizontal Bevel BackAll profiles must have a minimum 32mm overlap, with matching opposed 8 x 6mm weather grooves 10mm from the edge of each edge. The exposed leading edge may optionally have a 3mm pencil round finish for better paint adhesion.

Profiles:150 x 25WB, 200 x 25WBRefer to Clelands Timber Products Ltd profile chart.

2.1.2 Horizontal Rusticated150 x 25 and 200 x 25 profiles must have a minimum 25mm overlap, with matching opposed 6 x 3mm weather grooves 10mm from the edge of each edge, and allowing for a minimum 2mm expansion gap between boards. The exposed leading edge may optionally have a 3mm pencil round finish for better paint adhesion.

225 x 25 and 250 x 25 profiles must have a minimum 35mm overlap, with matching opposed 6 x 3mm weather grooves 10mm from the edge of each edge, and allowing for a minimum 4mm expansion gap between boards. The exposed leading edge may optionally have a 3mm pencil round finish for better paint adhesion.

Profiles:150 x 25WR, 200 x 25WR, 225 x 25WR, 250 x 25WRRefer to Clelands Timber Products Ltd profile chart.

2.1.3 Vertical ShiplapAll profiles must have a minimum 25mm overlap, with matching opposed 6 x 3mm weather grooves 10mm from the edge of each edge, and allowing for a minimum 2mm expansion gap between boards. The exposed leading edge may optionally have a 3mm pencil round finish for better paint adhesion.

Profiles:150 x 25WS, 200 x 25WS

Refer to Clelands Timber Products Ltd profile chart

2.2 Cavity Battens• CavitiesmustcomplywithE2/AS1oftheNZBC

paragraphs 9.1.8 to 9.1.9.4.

• Timbercavitybattensshallbeaminimum 45mm x 20mm to match the height of framing

and be minimum H3.1 treated according to NZS3640.

2.2.1 Horizontal weatherboard systemsUse solid vertical cavity battens as follows:20 x 45 or 20 x 65

2.2.2 Vertical weatherboard systemsCavibatCavibat 45mm x 18mm x 1200 fluted polypropylene cavitybattensmayalsobeusedineitherhorizontalorvertical applications above. Refer to BRANZ appraisal No. 524 for further specification information.

Cavibat cannot be structurally fixed.

2.3 Rigid Wall Underlays / Rigid Air BarriersA Rigid Wall Underlay or Rigid Air Barrier (RAB) shall be included as part of the cladding system:

• InlocationsdefinedasExtraHighwindzonesaccording to Table 3 E2/AS1.

• Whereinteriorwallsarenotlinedorforexternalwalls of attached garages that are unlined and shall be installed according to Table 23 E2/AS1.

• Whereadditionalweathertightnessofthebuilding envelope is desired.

Approved RAB are as follows:• Minimum6mmfibrecementsheet(e.g.:James

Hardie, BGC).• Minimum7mmH3.2DDPlywoodmanufactured

to AS/NZS2269 and tested in accordance with AS/NZS4284 (e.g. CHH Ecoply).

Rigid Air Barrier shall be fixed in accordance with the manufacturer’s installation instructions and Clause 9.1.7.2 E2/AS1.

Rigid Air Barriers shall be independently appraised by an IANZ or similarly approved accreditation agency or testing facility.

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2.4 Finishing MouldingsClelands exterior mouldings or mouldings that meet the E2/AS1 shall be specified to match the relevant timber substrate and weatherboard system.

Mouldings shall generally be fixed with nails at a maximum 450mm centre position so as not to penetrate through flashings.

Mouldings shall have a continuous bead of sealant applied where they meet weatherboards, neighbouring mouldings or joinery.

2.5 Flashings• FlashingsshallbemadefromStainlessSteel,

Galvanised Steel, UPVC or Aluminium.

• SoakersforallBevelBackweatherboardmayalso be made from copper.

• Allflashingmaterialsshallbecompatiblewithneighbouring materials and comply with Tables 20, 21, 22 of E2/AS1 NZBC.

• Flashingscanbesuppliedbythetimbermerchant or by the builder according to this specification.

• Weatherboard fixings shall not penetrate through the flashings under any circumstances as this may jeopardize the weather tightness of the cladding system.

(Note: Quickflash flashings codes are suggested here for reference only. Other flashing suppliers/brands may be used as long as they comply with the specifications in this manual).

Quickflash Codehttp://www.quickflash.co.nz

Profile Scriber Bevelled Cornice

40mm,20mm D4S

Eaves Mould

Internal Corner

Cover Board

External Corner

Bevel Back X X X X X

Rusticated X X X X X X X

Vertical Shiplap X X X X X X X

6 – 20mm Cavity Base Closer

Bevel Back Corner and Flat Soakers

107, 108 – Parapet Saddle Capping

21 – 40mm Z Flashing

Hemmed External Corner Flashing

14 – 50mm,4 – 90mm

Hemmed Internal Corner Flashing

3 – 50mm, 40 – 70mm,

3 – 90mm

23 – Sill Flashing

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2.6 Fixings• ShallbeinaccordancewithTable24ofNZBC

E2/AS1 and NZS3604 unless otherwise advised below.

• Fixingscanbesuppliedbythetimbermerchantor by the builder according to this specification.

• Forbuildingslocatedinseaspray(‘ZoneD’Exposure) conditions according to NZS3604, stainless 316 fixings must be used.

2.6.1 Fixing for paint finish weatherboardsShall be of the following specification:

• Joltheadnail.

• Stainlesssteel,siliconebronzeorhotdipgalvanized.

• Toallowminimum35mm penetration into the framing (when using packer cavity battens) or 35mm penetration into the batten and framing combined (when using structural cavity battens).

Minimum Required Fixing Sizes

Profile Direct Fix Packer Cavity Batten

Packer Cavity with

RAB

Bevel Back 75 x 3.15mm 90 x 4.0mm -

Rusticated 60 x 2.8mm 75 x 3.15mm 90 x 3.15mm

Vertical Shiplap 60 x 2.8mm 75 x 3.15mm 90 x 3.15mm

Mouldings 40 x 2.80mm 40 x 2.80mm

3. Proprietary System ComponentsThese items are not supplied by Clelands. They shall be sourced and supplied by the timber merchant or the builder to a specification that conforms to NZBC requirements and are deemed fit for use in the end use application.

3.2 Flexible Sealant - modified silicone exterior type.

3.3 Epoxy adhesive - two pot exterior.

3.4 Flexible Wall Underlay (Building wrap) or rigid Wall Underlay - to conform with Table 23 of E2/AS1.

3.5 PEF Backing Rod - closed cell type designed foruseasabackingrod,sized25%largerthanthe gap it is to fill.

3.6 Flashing Tape - compatible with other components in the system including the building wrap.

4. Installation Preparation4.1 Framing

• Generally,thetimberframingmustcomplywithNZS3604 (Timber-Framed Buildings), however where specific engineering design is required the framing shall be at least of equivalent stiffness to the framing provisions of NZS3604.

• Themoisturecontentoftheframingmustnot exceed 20% at the time of fixing the weatherboard (problems may occur later due to excessive timber movement if framing is too wet).

• Additionalframingmayberequiredatsoffits,corners, window and door openings.

4.1.1 Horizontal Weatherboards• Studsmustbespacedatamaximumof600mm

between centres.

• Dwangs(noggins)mustbespacedatamaximum of 1350mm between centres.

• Studsanddwangsmustformaflushplaneforcavity battens and weatherboards to be fixed to.

Amendment to 4.1.1 point two approved 6th August 2015.

4.2 Flexible Wall Underlay (Building Wrap)A waterproof, breathable building wrap (e.g. WaterGate Plus) must be fixed underneath battens and weatherboards in accordance with Table 12 of E2/AS1 NZBC.

Flexible wall underlays shall also be:

• Fixedinaccordancewith9.1.7.1E2/AS1.

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• Cutanddressedintoopeningsinaccordancewith figure 72A and 72B E2/AS1.

• Havecompliantandcompatibleflexibleflashing tape applied to head and sill framing in accordance with E2/AS1.

• Havepolypropylenestraporwireappliedtoprevent bulging of wrap cavity in accordance with 9.1.8.5 E2/AS1.

• Extendminimum35mmoverbottomplate.

4.3 Rigid Wall Underlay• RigidWallUnderlays/RAB’sarerequiredinExtraHighwindzonesaccordingtoTable3and23E2/AS1.

• RigidWallUnderlaysshallbefixedinaccordancewith the manufacturer’s installation instructions and Clause 9.1.7.2 E2/AS1 including:

a) Sheet edges shall be fixed over solid framing with a 1-2mm expansion gap between sheets for fibre cement and 2-3mm gap for plywood. This may vary and must be verified with manufacturer’s specification prior to installation.

b) Shall have flexible underlay folded into opening reveals as per 9.1.5 a) E2/AS1.

c) Shall be over-fixed with flexible wall underlay from Table 23 and installed in accordance with 9.1.7.1 E2/AS1 (note: some proprietary systems may not require this).

d) Shall have flexible flashing tape applied to head, sill framing openings and all sheet joins including corners with a minimum 50mm lap to the RAB. Flexible tape must be compatible with the wall underlay and other surrounding materials.

e) Shall extend past the bottom plate 15-25mm. This shall be confirmed with the

RAB manufacturer prior to installation.

f) Shall have flexible flashing tape to the RAB and overlapping the cavity closer at the bottom of the cavity.

4.4 Drained CavitiesCavities shall comply with E2/AS1 of the NZBC paragraphs 9.1.8 to 9.1.9.4.

4.4.1 Packer cavity batten fixing methodTemporarily fix 20 x 45mm battens with fixings at 800mm centres with:

• 40x2.5mmflathead,hotdippedgalvanisednails; or

• 50x2.8mm‘D’flathead,power-driven,galvanised nails.

4.4.1.1 CavibatCavibat 45mm x 18mm x 1200mm fluted polypropylene cavitybattensmayalsobeusedineitherhorizontalorvertical applications above. Refer to BRANZ appraisal No.524 for further specification information. Cavibat cannot be structurally fixed.

4.4.2 Inter-Story Junction• Aninter-storyjunctionshallbeusedfor

continuous cavities over two stories or 7 metres.

• A‘Z’flashingshallbeusedwithatleast35mm cover over the weatherboard and with a minimum 15 degree fall and allowing 5mm minimum gap between flashing and weatherboard in accordance with E2/AS1.

4.4.3 Base of wall cavityThe base of walls including above window heads and inter-story flashings:

• Shallhaveacavitybasecloserwithminimumventilation area 1000mm2 per metre length.

• Thecavityclosershallbepositionedtoallowatleast 10mm drip edge to wall cladding or 15mm above window and door head flashings, in accordance with 9.1.8.3 E2/AS1.

4.4.4 Top of wall cavity• Shallbesealedoffusingasolid(non-castellated,

non-Cavibat) vertical cavity batten running horizontally.

4.4.5 Internal and external corners• Shallhaveverticalcavitybattensfixedwithat

least 10mm gap between battens.

4.5 Head Flashings• Shallbefixedwithaflashingupstandofa

minimum 35mm cover with tape or underlay lapped over the flashing.

• ExtraHighwindzonesshallhaveaminimum75mm cover flashing to head flashing upstand and extend a minimum 60mm over the weatherboard.

• Shallhaveaminimum15degreefallwith5mmgap between head flashing and weatherboard in accordance with E2/AS1.

• Shallbefixedwithstopends,with30mmcoverand, if scribers are used, extend 20mm past the scriber in accordance with E2/AS1.

• Shallhaveairsealsbetweenrevealorframeinaccordance with 9.1.6 E2/AS1, installed with

self-expanding polyurethane foam over PEF backing rod.

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4.6 Window and Door Joinery• Maybetimberoraluminium.

• ShallmeettherequirementsofNZS4211.

• Shallbedesignedinaccordancewiththerelevantwindzone.

• ShallmeettherequirementsofE2/AS1.

• Shallhavesillsupportbarsinstalledinaccordance with E2/AS1 and where possible sill trays are recommended.

• Shallhaveflexibleflashingtapearoundopeningsand over cavity closer above joinery head.

• Jambshallbescribedwithscribersealedtoweatherboards and be made weather tight with a foam bond break and a continuous bead of sealant along the jamb line.

• Shallhaveflexibleairsealallsidesofjoinerypenetration, comprising self-expanding polyurethane foam or sealant installed over closed PEF backing rod.

• ForVeryHighandExtraHighwindzones,thehead flashing shall be sealed to the window flange in accordance with E2/AS1.

4.7 Ground ClearanceGround clearance between bottom of cladding and the ground shall be in accordance with 9.1.3 and Table 18 E2/AS1. The base of the cladding shall:

• Overlaptheconcreteslabbyaminimum50mm.

• Finish100mmaboveapavedsurface.

• Finish175mmaboveanunpavedsurface.

The ground shall have a slope of at least 1:30 to allow water to flow away from the building.

4.8 DeckingRefer to E2/AS1 for requirements specific to the type of decking being used.

• Wherecladdingfinishesaboveadeckitshallfinish minimum 35mm above a decking surface and have a 10mm drip edge.

• Wherecladdingfinishesnexttoslatteddeckingthere shall be at least a 12mm gap between the decking and cladding wall surface.

4.9 Meter Boxes• Shallbemanufacturedfromdurable,UV

resistant, non-combustible material with minimum 20 year service life expectation.

• Shallbedesignedwithsillssoastoallowwaterto easily drain away from possible entry points.

• Shallhaveflashingtapearoundtheentireopening.

• Shallhavethebuildingwrapoverlappingthe‘Z’head flashing, and with the flashing to be riveted and sealed to the top metre box flashing with a minimum 10mm overlap.

• Shallbesealedaroundallsideswithself-expanding polyurethane foam over PEF backing rod.

4.10 Pipe Penetrations• Shallbeinaccordancewith9.1.9,9.1.9.1,9.1.9.3

and figure 68 E2/AS1.

• Pipesshallbeinstalledwitha5degreefall,withappropriate support noggin underneath.

• Shalluseanappropriatepipeflashingapprovedby Clelands Timber or flashing tape to seal the pipe to the building wrap or RAB in accordance with E2/AS1.

• ShallhavesealantappliedoverPEFrodtomakepenetrations through both weatherboard and interior lining weather tight.

4.11 Parapets / Enclosed Balustrade• Cappingshallhaveminimum50yeardurability

and shall have ‘birds beak’ style drip edge.

• Fixingpenetrationsthroughthecappingshallbemade through the side only.

• Cappingshallbeseparatedfromtimberbyroofunderlay or other suitable material.

• Theslopeofthecapshallbeaminimumof5degrees.

• Thecappingshalloverlaptheweatherboardsby:

a) 50mm – Low to High Wind Zones

b) 70mm – Very High Wind Zones

c) 90mm – Extra High Wind Zones

• Expansionjointsmayberequiredforlengthsover 8m – refer to E2/AS1.

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5. Installation Fixing Details5.1 Bevel BackFixings shall be driven through the wall underlay and in the framing in accordance with Table 24 E2/AS1.

• Fixingsshallbehanddriven.

• Weatherboardsshallbepredrilledpriortoapplication of fixing with a drill bit slightly smaller than the fixing.

• Nailplacementshallbe10mmabovethelap.

• Thelapbetweenboardsshallbe32mm.

• Opposingweathergroovesshallbelineduptoform an 8 x 10mm weathergroove.

• Nailsshouldbeappliedatanupwardanglesoas to reduce water ingress through the fixing point.

• Weatherboardsshallbefixedtoframingatmaximum 600mm centres.

• Weatherboardfixingsshallnotpenetratethroughthe flashings under any circumstances as this may jeopardise the weather tightness of the cladding system.

Refer to architectural drawings for further Bevel Back fixing details.

Figure 1 – Bevel Back Fixing

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Figure 2 – Bevel Back – Base Of Wall - Concrete Floor

Figure 3 – Bevel Back – Base Of Wall - Timber Floor

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Figure 4 – Bevel Back – Enclosed Deck – Concrete Substrate

Figure 5 – Bevel Back – Enclosed Deck – Timber Substrate

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Figure 6 – Bevel Back – External 90° Corner – Boxed

Figure 7 – Bevel Back – External 90° Corner – Soakers

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Figure 8 – Bevel Back – External 135° Corner – Soakers

Figure 9 – Bevel Back – Internal 90° Corner – Moulding

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Figure 10 – Bevel Back – Internal 90° Corner – Scribed & Notched

Figure 11 – Bevel Back – Internal 135° Corner – Scribed & Notched

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Figure 12 – Bevel Back – Inter-Storey Cavity Junction

Figure 13 – Bevel Back – Meter Box Head

Wall Framing

Building Wrap

Cavity Batten

Bevel Back Weatherboard

Additional building wrap over cavity closure

Cavity closer

5mm min. drip edge(Cavity closure to bottom of cladding)

5mm capillary gap

35mm‘z’flashing15° min. slope 35mm min. upstand 35mm min. cover to weatherboard

Packer

100mm cavity spacers with 5° min. fall

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Figure 14 – Bevel Back – Meter Box Jamb

Figure 15 – Bevel Back – Meter Box Sill

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Figure 16 – Bevel Back – Packer Cavity Batten

Figure 17 – Bevel Back – Parapet Balustrade Cap Flashing

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Figure 18 – Bevel Back – Parapet Balustrade Intersection With Wall – Scribed & Notched

Figure 19 – Bevel Back – Pipe Penetration

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Figure 20 – Bevel Back – Top Of Wall – Flat Soffit

Figure 21 – Bevel Back – Top Of Wall – No Soffit

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Figure 22 – Bevel Back – Top Of Wall – Sloping Soffit

Figure 23 – Bevel Back – Weatherboard Join

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Figure 24 – Bevel Back – Window Head

Figure 25 – Bevel Back – Window Jamb

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Figure 26 – Bevel Back – Window Sill

5.1.1 Joins• Scarfjoinsshallbemitredandmadeover

battens only with one nail applied either side of the join predrilled at least 12mm from the ends. The join shall have sealant applied and be covered with a corrosive resistant flat soaker. Joinsshallbestaggeredbyatleast600mm.

5.1.2 Corners• Shallbemadeweathertightwithhemfolded50

x 50 or 70 x 70 or 90 x 90 flashings according to thetypeofcornerbeingusedandthewindzone.

• Shallbeeither:

a) Scribed and notched with 90 x 90mm hem folded corner flashing; or

b) Butted to 40 x 40mm internal corner mould with 90 x 90 hem folded corner flashing.

• Acontinuousbeadofsealantshallbeappliedwhere mouldings meet weatherboards and neighbouring mouldings or joinery.

5.1.2.2 External Corners

• Shallbemadeweathertightwithhemfolded50x 50 or 70 x 70 flashings.

• Shallbeeither:

a) Mitred and covered with corrosion resistant soakers with 50 x 50 hem folded flashing; or

b) Covered with external cover boards in conjunction with scribers.


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Figure 27 – Rusticated Fixing

5.2 RusticatedFixings shall be driven through the wall underlay and in the framing in accordance with Table 24 E2/AS1.



• Nailplacementshallbe35mmfromtheedgeofthe weatherboard and/or 10mm from the side of the lap.

• Thelapbetweenboardsshallbe25mmwithaminimum 2mm expansion gap between boards.

• Weathergroovesshallbelineduptoforma6x6mm weathergroove.

• Nailsshouldbeappliedatanupwardanglesoas to reduce water ingress through the fixing point.


Refer to Architectural drawings for further Rusticated fixing details.

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Figure 28 – Rusticated – Base Of Wall – Concrete Floor

Figure 29 – Rusticated – Base Of Wall – Timber Floor

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Figure 30 – Rusticated – Enclosed Deck – Concrete Substrate

Figure 31 – Rusticated – Enclosed Deck – Timber Substrate

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Figure 32 – Rusticated – External 90° Corner – Boxed

Figure 33 – Rusticated – External 90° Corner – Flush Moulding

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Figure 34 – Rusticated – External 90° Corner – Moulding

Figure 35 – Rusticated – External 135° Corner – Boxed

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Figure 36 – Rusticated – Internal 90° Corner – Butted

Figure 37 – Rusticated – Internal 90° Corner – Flashing

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Figure 38 – Rusticated – Internal 90° Corner – Moulding

Figure 39 – Rusticated – Internal 135° Corner – Flashing

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Figure 40 – Rusticated – Inter-Storey Cavity Junction

Figure 41 – Rusticated – Meter Box Head

Wall Framing

Building Wrap

Cavity Batten

Rusticated Weatherboard

Additional building wrap over cavity closure

Cavity closer

5mm min. drip edge(Cavity closure to bottom of cladding)

5mm min. capillary gap

35mm‘z’flashing15° min. slope 35mm min. upstand 35mm min. cover to weatherboard

100mm cavity spacers with 5° min. fall

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Figure 42 – Rusticated – Meter Box Jamb

Figure 43 – Rusticated – Meter Box Sill

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Figure 44 – Rusticated – Packer Cavity Batten

Figure 45 – Rusticated – Parapet Balustrade Cap Flashing

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Figure 46 – Rusticated – Parapet Balustrade Intersection With Wall – Butted

Figure 47 – Rusticated – Parapet Balustrade Intersection With Wall – Moulding

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Figure 48 – Rusticated – Pipe Penetration

Figure 49 – Rusticated – Top Of Wall – Flat Soffit

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Figure 50 – Rusticated – Top Of Wall – No Soffit

Figure 51 – Rusticated – Top Of Wall – Sloping Soffit

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Figure 52 – Rusticated – Weatherboard Join

Figure 53 – Rusticated – Window Head

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Figure 54 – Rusticated – Window Jamb

Figure 55 – Rusticated – Window Sill

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5.2.1 Joins• Scarfjoinsshallbemitredandmadeover

battens with one nail on each side of the join predrilled at least 12mm from the ends. The join shall have flashing tape applied to the back of the board, shall have sealant applied to the join and be optionally covered with corrosive resistantflatsoakers.Joinsshallbestaggeredby at least 600mm.

5.2.2 Corners5.2.2.1 Internal Corners

• Shallbemadeweathertightwithhemfolded50x 50 or 70 x 70 or 90 x 90 flashings according to thetypeofcornerbeingusedandthewindzone.

• Shallbeeither:

a) Boards butted evenly into a 70 x 70 hem folded ‘W’ flashing; or

b) 40 x 40 internal corner, plugged with 90 x 90 hem folded flashing; or

c) Boards butted with ‘S’ corner mould into corner and plugged as necessary with

70 x 70 hem folded flashing.




• Shalluseeither:

a) Corner mould and plugged with 50 x 50 hem folded flashing; or

b) Corner mould with 50 x 50 hem folded flashing; or

c) Be covered with external cover boards and plugged 50 x 50 or 70 x 70 hem folded flashing.

(note: only c) corner detail is suitable for Extra High wind zones)


5.3 Vertical ShiplapFixings shall be driven through the wall underlay and in the framing in accordance with Table 24 E2/AS1.



• Nailplacementshallbe35mmfromtheedgeofthe weatherboard and/or 10mm from the side of the lap.

• Thelapbetweenboardsshallbe25mmwithaminimum 2mm expansion gap between boards.

• Weathergroovesshallbelineduptoforma6x6mm weathergroove.

• Nailsshouldbeappliedatanupwardanglesoas reduce water ingress through the fixing point.


Refer to Architectural drawings for further Vertical Shiplap fixing details.

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Figure 56 – Vertical Shiplap - Base of Wall – Concrete Floor

Figure 57 – Vertical Shiplap - Base of Wall – Timber Floor

CAVITY BATTEN FIXING

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Figure 58 – Vertical Shiplap - Enclosed Deck – Concrete Substrate

Figure 59 – Vertical Shiplap - Enclosed Deck – Timber Substrate

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Figure 60 – Vertical Shiplap - External 90° Corner – Boxed

Figure 61 – Vertical Shiplap - External 90° Corner – Flush Moulding

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Figure 62 – Vertical Shiplap - External 90° Corner – Moulding

Figure 63 – Vertical Shiplap - External 90° Corner – Rebated

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Figure 65 – Vertical Shiplap - Internal 90° Corner – Butted

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Figure 66 – Vertical Shiplap - Internal 90° Corner – Flashing

Figure 67 – Vertical Shiplap - Internal 90° Corner – Moulding

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Figure 68 – Vertical Shiplap - Internal 135° Corner – Flashing

Figure 69 – Vertical Shiplap - Inter-Storey Cavity Junction

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Figure 70 – Vertical Shiplap - Meter Box Head

Figure 71 – Vertical Shiplap - Meter Box Jamb

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Figure 73 – Vertical Shiplap - Packer Cavity Batten

75 x 3.15 jolt head nailpunched & puttied to achieve35mm min. penetration

Internal wall lining

Figure 72 – Vertical Shiplap - Meter Box Sill

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Figure 74 – Vertical Shiplap - Parapet Balustrade Cap Flashing

Figure 75 –Vertical Shiplap - Parapet Balustrade Intersection With Wall – Butted

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Figure 76 – Vertical Shiplap - Parapet Balustrade Intersection With Wall – Flashing

Figure 77 – Vertical Shiplap - Parapet Balustrade Intersection With Wall – Moulding

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Figure 78 – Vertical Shiplap - Pipe Penetration

Figure 79 – Vertical Shiplap - Top Of Wall - Flat Soffit

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Figure 80 – Vertical Shiplap - Top Of Wall - No Soffit

Figure 81 – Vertical Shiplap - Top Of Wall - Sloping Soffit

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Figure 82 – Vertical Shiplap - Weatherboard Join – Birdseye

Figure 83 – Vertical Shiplap - Weatherboard Join

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Figure 84 – Vertical Shiplap - Window Head

Figure 85 – Vertical Shiplap - Window Jamb

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Figure 86 – Vertical Shiplap - Window Sill

Figure 87 – Vertical Shiplap - Base of Wall – Concrete Floor

DIRECT FIX

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Figure 88 – Vertical Shiplap - Base of Wall – Timber Floor

Figure 89 – Vertical Shiplap - Enclosed Deck – Concrete Substrate

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Figure 90 – Vertical Shiplap - Enclosed Deck – Timber Substrate


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Figure 92 – Vertical Shiplap - External 90° Corner – Flush Moulding

Figure 93 – Vertical Shiplap - External 90° Corner – Moulding

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Figure 94 – Vertical Shiplap - External 90° Corner – Rebated

Figure 95 – Vertical Shiplap – External 135° Corner – Boxed

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Figure 96 – Vertical Shiplap – Internal 90° Corner – Butted

Figure 97 – Vertical Shiplap – Internal 90° Corner – Flashing

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Figure 98 – Vertical Shiplap – Internal 90° Corner – Moulding

Figure 99 – Vertical Shiplap – Internal 135° Corner – Flashing

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Figure 100 – Vertical Shiplap – Meter Box Head

Figure 101 – Vertical Shiplap – Meter Box Jamb

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Figure 102 – Vertical Shiplap – Meter Box Sill

Figure 103 – Vertical Shiplap – Pipe Penetration

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Figure 104 – Vertical Shiplap – Top Of Wall – Flat Soffit

Figure 105 – Vertical Shiplap – Top Of Wall – No Soffit

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Figure 106 – Vertical Shiplap – Top Of Wall – Sloping Soffit

Figure 107 – Vertical Shiplap – Weatherboard Fixing

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Figure 108 – Vertical Shiplap – Weatherboard Join – Birdseye

Figure 109 – Vertical Shiplap – Weatherboard Join

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Figure 110 – Vertical Shiplap – Window Head

Figure 111 – Vertical Shiplap – Window Jamb

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Figure 112 – Vertical Shiplap – Window Sill

5.3.1 Joins• Scarfjoinsshallbemitredsoastoallowwater

run off down the face of the cladding and be made over battens with one nail on each side of the join predrilled at least 12mm from the ends. The join shall have flashing tape applied to the back of the board, shall have sealant applied to the join and be optionally covered with corrosive resistantflatsoakers.Joinsshallbestaggeredby at least 450mm.

5.3.2 Corners5.3.2.1 Internal Corners


• Shallbeeither:

a) Boards butted evenly into a 70 x 70 hem folded ‘W’ flashing; or

b) 40 x 40 internal corner with 90 x 90 hem folded flashing; or

c) Boards butted with D4S corner mould on top with 70 x 70 hem folded flashing.



• Shallbemadeweathertightwithhemfolded50x 50 or 70 x 70 flashings according to the type of corner being used and the Wind Zone.

• Shalluseeither:

a) Corner mould with 50 x 50 hem folded flashing; or

b) Routed and notched together and sealed with construction adhesive; or

c) Be covered with external cover boards and 50 x 50 or 70 x 70 hem folded flashing.

(Note: only c) corner detail is suitable for Extra High wind zones)


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6. Paint Finish Weatherboards6.1 Things to expect

• Claddinginnorthfacingorheavyweatherexposed aspects age quicker than timber located in other aspects.

• Somemovementoftimberasitexpandsandcontracts.

• Possibleminorsurfacecracking(checking).

6.2 Minimum maintenance• Claddingmustbecleanedregularly(minimum

every 12 months) with mild detergent and a soft brush, rinse with water. Note: High pressure water blasting is not allowed.

• Amaintenanceassessmentisrequiredatleastevery two summers as follows:

a) Sand back areas of weatherboard where flaking or cracking is occurring. Putty and sand as appropriate, then spot prime and apply two coats of exterior paint as required.

b) Check all weatherboards, junctions, flashings, mouldings and replace or remediate parts as required to maintain the weather tightness of the cladding system.

c) Recoat the weatherboards with exterior paint as required by the coating manufacturer’s recommendations (typically between 5 to 10 years).

7. Contact DetailsClelands Timber Products Limited61 Katere RoadPO Box 3240, New Plymouth 4341Ph: 0800 100 095 Fax: 0800 114 488

www.clelands.co.nz

8. DisclaimerThe recommendations contained in this document are based on good building practice, but are not an exhaustive statement of all relevant information. The successful performance of the system relies on many factors outside the control of Clelands Timber Products Ltd such as the quality of workmanship and design. Clelands Timber Products Ltd shall not be liable for the recommendations made in its literature and the performance of the system including conformance with the NZBC, regulations and standards. It is the responsibility of the building designer to ensure that the details and recommendations provided are suitable for the intended project and that the design is executed appropriately.

JAGOPRINT&GRAPHICS97896

06 aug. 15 version 1 - clelands timber · 2018. 4. 18. · 06 aug. 15 version 1.3. 1 ... 61 katere...

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