TIMBER ARCHITECTURE

INDUSTRY CONSTRUCTIONS

GLUED LAMINATED TIMBER

2HigH-Quality glulam timber made in germany HESS TIMBER is one of Germanys and Europes technical leaders in timber construction. The company, which is headquartered in Kleinheubach near Frankfurt am Main, offers a unique service range for demanding architects, planners and project developers in Germany and abroad. In addition to standardised services for timber construction, such as roof and industrial building structures for industrial and commercial construction, HESS TIMBER has also specialised in the planning and implementation of customised and architecturally demanding roof structures with unique geometries.

The plant grounds of HESS TIMBER Heavy load transport

HESS TIMBERs ability to cover the entire bandwidth of

services, ranging from planning, glulam products and

construction while maintaining the highest level of quality in

the execution of construction works is due to the fact that it

is probably the only company that combines an engineering

firm, glulam production, CNC beam production and its own

carpentry under one roof. In Spring 2010 HESS TIMBER took a

completely new and extremely fast processing finger-jointing

line concept into operation.

This high-tech production was supplemented in May 2010

with the worldwide first fully automated CNC-Press for curved

glulam beams. In 2006 the core of extensive investments was

a new CNC-controlled, 6-axis processing centre from Maka,

Nersingen and the finger jointing system was optimised with

an x-ray scanner and a modified charging system. Also new

was a high-frequency continuous press for length-independent

manufacture of glulam timber beams. HESS TIMBER now

ranks among the most modern glulam construction companies

in Europe and around the globe. By combining customised

engineering planning, state-of-the-art technology for

production, and the quality of its carpentry services, the

company is able to implement all of its clients requirements at

the highest quality.

3 130 years tradition

16.000m2 Plant grounds

90 emPloyees

3d Planning

engineering

6-axis-CnC-ProduCtion

latest teCHnologies

130 years tradition

16.000m2 Plant grounds

90 emPloyees

3d Planning

engineering

6-axis-CnC-ProduCtion

latest teCHnologies

Engineering officeCross-ConveyorFully automated CNC-Press

a ComPany witH traditionThe company HESS TIMBER GmbH & Co. KG looks back on an impressive company history.

The general Manager Mathias Hofmann has been active in

the area of project construction of wood facade structures

since 2001 with his former company wohnwerk GmbH.

In 2005, he took over the business fields of the previous

HESS Holzleimbau Technologie (a company with 130 years

of tradition) and founded the new HESS-WOHNWERK GmbH

& Co. KG.

In 2010, the entity was changed to HESS TIMBER GmbH & Co.

KG. Very fortunately, the HESS knowledge continues to live

on with the new company. Also, since the new foundation in

2005, 50 additional jobs could be created. With its current 90

employees, HESS is proud of making a positive contribution to

the regional employment market situation.

4tHe benefits of glulam timber Glued laminated timber, often shortened as Glulam, is an engineered wood product manufactured by gluing together pieces of timber, known as laminates. This process produces larger size and longer length members, which can be curved or straight.

good lookingThe natural appearance of glulam is sufficiently attractive to

make it eminently presentable with no cladding indeed, used

as exposed beams, glulam adds to the aesthetic appeal of a

structure.

Chemical resistanceTimber and the synthetic adhesives used in bonding glulam

have a remarkable resistance to chemical attack and therefore

glulam is often chosen as the preferred structural material

for buildings such as salt barns, water treatment plants, etc.

Glulam is resistant to most acids, rust and other corrosive

agents.

HESS TIMBER has manufactured and installed many glulam

timber projects where steel could not been used due to

aggressive chemical environments like swimming pools, coal

storage buildings or salt storage buildings.

Even the harsh salty environment of the UAE is not an issue

for glulam structures. The timber canopies of the D1-Tower in

Dubai will show the advantage against steel which often needs

to be a special grade of stainless steel.

strength to weightA structural steel beam may be 20% heavier and a concrete

beam 600% heavier than an equivalent glulam beam.

Increased strength due to the laminating process glulam is

stronger than solid timber as it has fewer natural defects and a

wider distribution. It is also comparable to steel in strength but

is much lighter.

CEPl logistics centreA special look: Glulam made out of HESS HYBRID (Spruce/Oak)

5great fire resistance When subjected to fire, large timber sections have greater

resistance to loss of structural integrity than steel or pre-

stressed concrete. This resistance is provided by a layer of

charcoal which forms around the surface of the section during

exposure to fire. The rate of charring of different species of

timber is known and therefore the performance and endurance

of timber in fire is predictable. The strength of the residual,

unburnt core of timber can readily be calculated, thereby

allowing a realistic assessment of safe resistance to fire to be

made. The method of calculation is given in DIN 4102.

As, on average, wood burns down at a rate of 0.7 mm

per minute, the cross section of the material is reduced

by approximately 20 mm in 30 minutes and by 40 mm in

60 minutes. This is why the load bearing potential of the

remaining cross section is of major importance. The respective

fire resistance grades F 30 and F 60 refer to the fire endurance

of these wooden members. It is interesting to note, after all,

that F 30 and F 60 can be obtained without additional flame-

retardant treatment. Due to the inherent material properties of

this natural building material, the fire-resistance characteristics

of wooden structural members are excellent.

As professionals know about the excellent fire behavior of

wood, many fire departments are timber constructions.

the renewable source fsC and PefCA small percentage of materials used in building construction

can be recycled but timber is the only renewable building

material. The planting rates are controlled to ensure growth

exceeds harvested quantities. In these countries there is more

standing timber than at any time since the ice age. This cycle

of felling and planting is very beneficial to the atmosphere as

it is only during growth that a tree absorbs CO2 and gives off

vital oxygen. Once a tree is mature this process virtually stops.

HESS TIMBER is FSC/PEFC certified and is entitled to use the

trademark FSC and PEFC.

Sculpture fabricated by HESS TIMBER

environmentally friendlyA 305 mm x 165 mm steel I beam has the equivalent

performance of a 550 mm x 135 mm softwood glulam

beam but requires six times the energy cost to produce.

A comparable 400 mm x 250 mm reinforced concrete beam

requires five times the energy cost to produce. Add to this

the pollutant by-products of these wasteful processes and

steel and concrete structures are even more environmentally

undesirable.

energy efficientGlulam is also energy efficient in use. The well-known

insulation property of timber eliminates the risk of cold

bridging where the frame may penetrate external elements of

the structure. Its low thermal mass helps reduce fuel bills by

absorbing little space heating energy.

VersatileGlulam can be used for roof, lintel and floor beams, columns

and rafters in almost any type of structure.

Photo by De Groot

6Hess timber ProjeCts......range from innovative and award-winning prestigious projects as well as artistic and customised roof structures, to very high-performance roof structures for industry and commercial buildings in Germany and abroad, with beam lengths of e.g. 40 m and roof areas of up to 20.000 m2.

flagship store, Peek & Cloppenburg // Cologne, germanyTimber species: Siberian Larch

Dimensions: 11.000 m2

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7d1-tower timber Canopies // dubai, uaeTimber species: European Fir

Dimensions: 1.700 m2

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toskana thermal bath // bad orb, germanyTimber species: European Spruce

Dimensions: 2.200 m2

9Pedestrian bridge // anaklia, georgiaTimber species: European Spruce

Dimensions: 505 m span, comprises more than

120 HESS LIMITLESS joints

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sculpture fingers, de groot // rijssen, netherlandsTimber species: Accoya (modified Pine)

Dimensions: 11 m span, 8 m height

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Photo by De Groot

Photo by De GrootPhoto by De Groot

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barrel roof // nursing school in leipzig, germanyTimber species: European Spruce

Dimensions: 10 m span

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tennis and bowling centre // Ptange, luxembourgTimber species: European Spruce

Dimensions: Longest beam up to 55 m, HESS LIMITLESS

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Bottom edge of beam highlighted for better understanding

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staudinger Coal storage // grokrotzenburg, germanyTimber species: European Spruce

Dimensions: 132 m in diameter, 52 m height

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Hess block

Cross-sections glued into a solid block. larger member widths (> 260 mm) can be manufactured very economically by using composite members (blocks) in which two or more glulam members are glued together into a solid block

Allows the combination of two wood species (see also HESS HyBRID)

Various possibilities due to the unique finger-jointing pressArches and twisted beams are possible with this productBlock glued beams can fabricated economically due to a

very unique 3D-Press which was invented and built 2012

by HESS TIMBER

Hess limitless

Glulam beams of endless length with worldwide delivery! Scan this QR code with your mobile phone to see the HESS lIMITlESS movie!

Innovative glulam product (patent pending)

Max. section size: 24 cm x 200 cmFabrication of long-span beams

comprising of short beams which will be

glued together on site

our glulam timber ProduCtsHESS TIMBER is offering a wide range of glulam products that can be adapted to the specific needs of our customers.

Hess basic

Standard cross-sections in stock for you! The most frequent applications of the standard cross-sections are roof structures, framing and supports in residential and commercial construction.

Glulam wood Spruce according to DIN 1052:2008-12Strength class GL 24Waterproof melamine resin adhesiveVisual quality, long edges chamfered, cleanly planed

on all four sides

Without chemical surface treatmentOther cross-sections, strength classes, lengths and

lamella thicknesses upon request

Width range: 8 - 26 cmHeight range: 10 - 240 cmThe following standard cross-sections can be delivered at

short notice:

Width in cm

Height in cm 8 10 12 14 16 18 20

10 10 / 10

12 8 / 12 10 / 12 12 / 12

14 14 / 14

16 8 / 16 10 / 16 12 / 16 14 / 16 16 / 16

18 18 / 18

20 8 / 20 10 / 20 12 / 20 14 / 20 16 / 20 20 / 20

24 8 / 24 10 / 24 12 / 24 14 / 24 16 / 24

28 14 / 28

length 12,00 m

HESS Basic

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More flexible and economic transport to the construction site lower total costs at verifiable equal

technical performance

Higher profitability compared to alternative construction materials and construction conceptions

Short beam lengths of 13,5 m (max.) guarantee flexible and unbeatable transport possibilities (with standard trailer or

shipment-container), low dead load

Higher strength as for a continuous glulam beam!Multiple application possibilities flexible constructionsNo steel parts are used high fire safetyHESS LIMITLESS is almost not visible

Hess Hybrid

A good looking glulam beam that comes at low costs!

Innovative product by HESS TIMBER two different wood species that perfectly complete each other and generate an

economic product of high quality

Cores cross section of glued laminated timber beam generally consists of spruce a standard wood species that

has been granted technical approvals up to GL 36 (HESS

LIMITLESS up to GL 38c)

1 - 2 cm thick coating can be made of precious and firm wood species e.g. Oak, Western red cedar, Accoya and

Belmadur

High weather resistance due to durable wood layer such as Oak or Accoya

Proportion of the layer comes up to 3 - 6 % concerning medium-sized cross sections and is the economic basis

of the product. Positive side effect: triggered by the

manufacturing process we reach a higher strength

New possibilities for architects regarding the visual appearance, durable solutions for engineers

Hess Column

Countless structural and aesthetic options for interior construction, facade design and timber construction

Columns for indoor and outdoor use are manufactured of selected woods such as spruce, larch or oak. In the outdoor

area and for load-bearing round supports, we use glulam

timber

Custom products with up to 40 m length and 1.6 m diameterSpiral and wining columns, three-dimensionally twisted

turned parts and wood balls from 150 to 1000 mm diameter

6-axis-CNC-portal-processing-center for timber column manufacture and joining

HESS lIMITlESS HESS HYBRID HESS ColumnHESS Block

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wood sPeCies used for glulam timber The following species are showing a range of the most typical wood species which we use for our glulam projects. If you are looking for a wood species that is not shown here, please let us know. We are more than happy to offer you solutions.

softwood

European Spruce

Botanical name: Picea abies

European Spruce is an economically important coniferous

species grown in Europe and North America. It is used for

most of our products. Superior grades are prized as a premium

tonewood.

Radiata Pine

Botanical name: Pinus radiate

Radiata Pine is a softwood whose availability and ease of use

make it popular for all kinds of construction and decorative

uses. However, we only use it if specified by the customer due

e.g. pressure treatment requirements.

Radiata Pine is also used for the technically modified timber

named Accoya .

Western Red Cedar

Botanical name: Thuja plicata

Western Red Cedar is a large softwood that grows in British

Columbia and some of the nearby western states of the USA.

A versatile timber, it is commonly used for applications such as

cladding, windows and joinery.

However, there is no technical approval available for load

bearing purposes.

European Spruce Radiata Pine Western Red Cedar Fascade Objects made of Western Red Cedar

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Douglas Fir

Botanical name: Pseudotsuga menziesii

Douglas Fir is one of the worlds best-known timber species.

Douglas Fir is a softwood timber, finding a range of weather-

protected applications in heavy construction.

European larch

Botanical name: Larix decidua

Larch is well-known as a tough and durable timber similar to

Douglas Fir (see above). It is also available as a knot-free timber

if premium quality is specified.

Accoya (modified timber)

Accoya is an acetylated long life wood made out of Radiata

Pine (see www.accoya.com). It is mainly used when it comes

to high performance requirements that might only be achieved

otherwise by tropical hardwoods.

Hardwood

European Beech

Botanical name: Fagus sylvatica

Beech is a relatively strong wood with high bending and

compression strength but it is not a durable wood and should

not be used if exposed to weather. However, Beech glulam

timber has its own technical approval and can therefore be

used for load-bearing glulam structures.

European Oak

Botanical name: Quercus

Oak is a hard, heavy wood, and has low stiffness and good

overall strength, making it increasingly popular as a structural

timber. Very similar in appearance and colour to the American

White Oak, European Oak has light-coloured sapwood and a

light to dark brown heartwood.

However, there is no technical approval available for load

bearing purposes. Despite this fact it can be combined very

economically together with our product HESS HyBRID.

Douglas Fir European larch European Beech European Oak

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awardsSchweighofer Prize 2011 European Innovation Prize for Forestry

The Schweighofer Prize awards innovative ideas, technologies,

products and services concerning the whole value chain in

order to strengthen the competitiveness of the European

Forest Based Sector. HESS TIMBER was awarded for the

innovation and development of the HESS LIMITLESS Joining

System (www.schweighofer-prize.org).

Timber construction Outfitter of the year 2011

The editorial department of the timber journal Holzkurier

awarded HESS TIMBER for the new patent system HESS.

High bay timber warehouse The biggest one worldwide

HESS TIMBER planned, fabricated, delivered and installed the

biggest fully automatically operated timber warehouse for

Josera pet food. The 30 m high building with a capacity of

9.200 palettes represents a true innovation.

The Anaklia bridge - the longest in Europe!

The 505 m long pedestrian wood bridge was erected in

Anaklia/Georgia in 2011/2012. It is verifiably the longest timber

wood bride in Europe, and one of the longest timber bridges

worldwide.

Timber Award North Rhine-Westphalia 2006

HESS TIMBER was awarded as the leading timber construction

company together with the architect Renzo Piano (Paris) and

the structural engineers Knippers Helbig (Stuttgart) for the

timber shell facade of the flagship store Peek & Cloppenburg

in Cologne.

18Sculpture Together We Are Strong on the plant grounds of HESS TIMBER

outlookBecause of the enormous opportunities for modern and demanding timber construction resulting from the HESS lIMITlESS product innovation, HESS TIMBER will continue to expand its international activities.

In addition to current projects, mainly in western and southern

Europe, the company is also working on developing projects

and cooperation opportunities all over Europe and in other

regions such as Turkey, the Gulf region and northern Africa.

HESS TIMBER cordially invites you to personally learn more

about the companys architectural innovation and technical

perfection as part of a plant visit.

1919

CertifiCatesCertificate of conformity for glulam strength grades

Certificate for the glulam timber strength grades GL24, GL28,

GL32 and GL36 according to DIN 1052:2008, 05.08.2013 by

MPA Stuttgart (Materials Testing Institute of the University of

Stuttgart).

Certificate of conformity for HESS lIMITlESS

Certificate for HESS LIMITLESS according to Z-9.1-775,

01.08.2011 by the MPA Stuttgart.

Certificate of conformity for composite glulam

Certificate for glued composite glulam according to

DIN 1052:2008, 23.02.2011 by MPA Stuttgart.

Technical approval for HESS lIMITlESS

General technical approval for the HESS LIMITLESS,

09.06.2010 by DIBt Deutsches Institut fr Bautechnik.

Gluing Certificate A

Competence to manufacture glued laminated timber of

all dimensions including finger jointed lamellas for glued

laminated timber.

Gluing Certificate A

Competence to manufacture bonded, composite components

made from laminated wood, provided they are note regulated

by DIN EN 14080.

Gluing Certificate B

Competence to manufacture bonded connections in the

form of glued-in steel rods, glued reinforcements and spliced

connections.

Gluing Certificate C1

Competence to manufacture glued laminated timber with the

joint system HESS LIMITLESS.

Gluing Certificate D

Competence to repare load-bearing timber structures

by means of crack fillings, glued-in steel rods, glued

reinforcements and spliced connections (all gluing certificates

16.05.2013 by MPA Stuttgart).

ContentsHigh-Quality glulam timber made in Germany 2

A company with tradition 3

The benefits of glulam timber 4 - 5

HESS TIMBER projects 6 -13

Our glulam timber products 14 -15

Wood species used for glulam timber 16 -17

Outlook 18

Awards 18

Certificates 19

More information on HESS TIMBER and our products can also be found at: www.hess-timber.com

EC certificate of conformity

Certificate for glulam timber according to EN 14080:2005,

07.06.2010 by KIT (Institute for Technology, Karlsruhe).

KOMO Certificate (Netherlands)

Certificate with certificate report for load bearing glulam

members, 01.10.2013 by SKH Netherlands.

PEFC

Chain of Custody (PEFC 04-31-1721)

FSC

Chain-of-Custody (FSC-C106169)

Hess timber GmbH & Co. KG Am Hundsrck 2 63924 Kleinheubach Germany

Phone +49 (0)9371- 4003-0 Fax +49 (0)9371- 4003-360

Email info@hess-timber.com www.hess-timber.com

TIMBER ARCHITECTURE

INDUSTRY CONSTRUCTIONS

GLUED LAMINATED TIMBER

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