BSH glued laminated timber and laminated beams

Dimensionally stable supports for timber construction. 

glued laminated timber and laminated timber beams

AESTHETIC, ECOLOGICAL, HEALTH-CONSCIOUS

BSH laminated timber and laminated beams

Components made of laminated timber (glulam) are statically load-bearing, high-quality wooden construction elements. As a result of grading the strength of the base material and the consistency created by layered construction, it is well-balanced and has greater load-bearing capacities than standard timber. Laminated timber and laminated beam timber are produced in accordance with DIN EN 14080 with DIN 20000-3 + DIN EN 15497 with DIN 20000-7. 

 

Wood moisture max 15%
Cut heartwood-separated, planed, chamfered edges

BSH laminated timber n-vis

 

Product description:

  • CE high-quality glue-laminated timber for the area that is not visible (n-vis), spruce GL24 / C24
  • Slats finger-jointed in accordance with DIN EN 15497 and 2 pieces glued together in accordance with DIN EN 14080
  • cut, heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges

Product benefits:

  • dimensionally accurate
  • form and dimensional stability
  • calculable
  • quality-tested

BSH laminated timber n-vis

BSH laminated timber n-vis, planed and chamfered on four sides, spruce/fir

Available lengths according to data sheet or on request
dimensions 80 mm 100 mm 120 mm 140 mm 160 mm 180 mm 200 mm 220 mm 240 mm
60 mm X X X X X X X X X
80 mm   X X X X X X X X

QLH®-Duo-plus® n-vis

 

Product description:

  • CE high-quality glue-laminated timber for the area that is not visible (n-vis), spruce C24
  • Slats finger-jointed in accordance with DIN EN 15497 and 2 pieces glued together in accordance with DIN EN 14080
  • cut, heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges

Product benefits:

  • dimensionally accurate
  • form and dimensional stability
  • calculable
  • quality-tested

QLH®-Duo-plus® n-vis

QLH®-Duo-plus® n-vis, planed and chamfered on four sides, spruce/fir

Available lengths according to data sheet or on request
Dimensions 100 mm 120 mm 140 mm 160 mm 180 mm 200 mm 220 mm 240 mm 260 mm 280 mm
100 mm X X X X X X X X X  
120 mm   X X X X X X X X X
140 mm     X X X X X X X  
160 mm       X X X X X X X

QLH®-Trio-plus® n-vi

 

Product description:

  • CE high-quality glue-laminated timber for the area that is not visible (n-vis), spruce C24
  • Slats finger-jointed in accordance with DIN EN 15497 and 3 pieces glued together in accordance with DIN EN 14080
  • cut, heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges

Product benefits:

  • dimensionally accurate
  • form and dimensional stability
  • calculable
  • quality-tested

QLH®-Trio-plus® n-vis

QLH®-Trio-plus® n-vis, planed and chamfered on four sides, spruce/fir

Available lengths according to data sheet or on request
* Separation products
Dimensions 180 mm 200 mm 220 mm 240 mm 260 mm
180 mm X * X * X * X * X *
200 mm   X *   X *  
240 mm       X *  

QLH®-Duo-plus® vis

 

Product description:

  • CE high-quality glue-laminated timber for the visible area (vis), spruce C24
  • Slats finger-jointed in accordance with DIN EN 15497 and 2 pieces glued together in accordance with DIN EN 14080
  • Cut, at least heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges
  • individually shrink-wrapped

Product benefits:

  • dimensionally accurate
  • form and dimensional stability
  • calculable
  • quality-tested

QLH®-Duo-plus® vis

QLH®-Duo-plus® n-vis, planed and chamfered on four sides, spruce/fir

Available lengths according to data sheet or on request
* Separation products
Dimensions 100 mm 120 mm 140 mm 160 mm 180 mm 200 mm 220 mm 240 mm 260 mm
100 mm X X X X X X X X X *
120 mm   X X X X X X X X *
140 mm     X X X X X X X *
160 mm       X X X X X X

QLH®-Trio-plus® vi

 

Product description:

  • CE high-quality glue-laminated timber for the visible area (vis), spruce C24
  • Slats finger-jointed  
  • in accordance with DIN EN 15497 and 
  • 3 pieces glued in accordance with DIN EN 14080
  • cut at least 
  • heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges
  • individually shrink-wrapped

Product benefits:

  • absolute dimensional accuracy
  • form and dimensional stability
  • calculable
  • quality-tested

QLH®-Trio-plus® vis

QLH®-Trio-plus® vis, planed and chamfered on four sides, spruce/fir

Available lengths according to data sheet or on request
* Separation products
Dimensions 180 mm 200 mm 220 mm 240 mm 260 mm
180 mm X * X * X * X * X *
200 mm   X *   X *  
240 mm       X *  

QLH®-Duo-plus® Douglas fir SELECT

 

Product description:

  • CE high-quality glue-laminated timber for the visible area SELECT, Douglas fir C24
  • slats finger-jointed in accordance with DIN EN 15497 and 2 pieces glued together in accordance with DIN EN 14080 
  • cut, heartwood-separated
  • dried to max. 15% wood moisture content
  • planed
  • chamfered edges
  • high durability
  • high strength
  • dimensionally accurate
  • form and dimensional stability
  • calculable
  • high natural resistance to fungi or insect infestation
  • quality-tested

QLH®-Duo-plus® SELECT

QLH®-Duo-plus® Douglas fir SELECT

Available lengths according to data sheet or on request
dimensions 120 mm 140 mm 160 mm 180 mm 200 mm 240 mm
120 mm X   X X X X
140 mm   X     X X
160 mm     X   X X

Certificates

You can find the corresponding declarations of performance for our products in our download area.

 

>> DECLARATIONS OF PERFORMANCE

Catalogue of requirements

The best products for high demands

rettenmeier® is your professional partner for quality products in the fields of specialist trade, wood construction and roofing. The benefits for our market partners range from comprehensive advice and information on all legal and product-related issues about creating ideal solutions through to the professional follow-up by our after-sales service.

 

Sorting feature Requirements for Si Requirements for NSi Comments
Technical regulation DIN EN 14080 DIN EN 14080  
Sorting class in accordance with DIN 4074-1 At least S 10K TS, C 24 in accordance with DIN EN 338 At least S 10K TS, C 24 in accordance with DIN EN 338  
Wood moisture content max. 15 % max. 15 % Prerequisite for the bonding
Dimensional accuracy of the cross-section DIN EN 336 dimensional accuracy class 2 b ≤ 100 mm ± 1 mm, b ≥ 100 mm ± 1.5 mm DIN EN 336 dimensional accuracy class 2 b ≤ 100 mm ± 1 mm, b ≥ 100 mm ± 1.5 mm The dimension tolerances for lengths must be agreed between the purchaser and the supplier
Distortion ≤ 4 mm/2 m ≤ 4 mm/2 m For comparison: DIN 4074-1: S 10 ≤ 8 mm/2 m
Longitudinal curvature ≤ 4 mm/2 m ≤ 4 mm/2 m For comparison: DIN 4074-1: S 10 ≤ 8 mm/2 m
Surface quality planed and chamfered equalised and chamfered The right sides (sides close to the core) must be facing outwards
Processing of the ends Capped at right angles Capped at right angles  
Bonding the timber DIN EN 14080 DIN EN 14080 Adhesive type I in accordance with DIN EN 301, characteristics of use in accordance with DIN 68141
Finger joint DIN EN 15497 DIN EN 15497  

Swelling and shrinkage dimensions

Dimensional changes/differential swelling and shrinkage if the wood moisture changes by 1% each 0,24 %
Swelling and shrinkage isotropy ratio tangential to radial 2

Characteristic variables and key indicators

Bulk density ρ (at approx. 15% wood moisture content) on average 450 - 480 kg/m³
Water vapour diffusion resistance coefficient µ (DIN 4108) 40
Thermal conductivity λR (DIN 4108) 0,13 W / (m*K)
Dimensional and form stability Gut
Building material class (DIN EN 13501-1) D-s2, d0
Building material class (DIN 4102) B2 (normal entflammbar)
Burning rate on average 0,65 – 0,70 mm/min.
Product Product rule Labelling
Not finger-jointed KVH®-1plus® DIN EN 14081-1 with DIN 20000-5 CE mark
Finger-jointed KVH®-1plus® DIN EN 15497 with DIN 20000-7 CE mark
QLH®-Duo/Trio-plus® Laminated timber and laminated beam timber are produced in accordance with DIN EN 14080 with DIN 20000-3 + DIN EN 15497 with DIN 20000-7 CE mark

The service life of wooden components used outdoors can be significantly increased if the issue of wood preservation is considered at the design stage. Otherwise, a component's useful life may be greatly affected by local conditions (high level of ambient moisture, permanent or occasional contact with water, lack of rear ventilation, etc.). On the other hand, favourable installation conditions can also considerably increase service life by, for example, preventing contact with soil or providing cover.

Use classes for wood and wood-based products according to DIN EN 335-1

UC WMC/exposure General conditions for use Insects Fungus Wood rot Wood pests in the sea Leaching procedure Durability class required
  Dry (constantly <20%) mean relative air humidity up to 85% Wood or wood product under roof, not exposed to weathering or moisture. Insect hazard can be excluded in accordance with 5.2.1. No No No No No 1 - 5
1 Dry (constantly <20%) mean relative air humidity up to 85% Wood or wood product under roof, not exposed to weathering or moisture. Yes No No No No 1 - 4
2 Occasionally moist >20% mean relative air humidity > 85%. Or temporary humidification due to condensate. Wood or wood product under roof, not exposed to weathering, a high ambient humidity can lead to occasional, but not permanent moistening. Yes Yes No No No 1 - 3
3.1 Occasionally > 20% moisture content Wood or wood product not under roof, with weathering, but with no permanent contact with the ground or water. Accumulation of water in the wood not to be expected, even within spatially limited areas. Yes Yes No No Yes 1 - 3
3.2 Frequently > 20% moisture content Wood or wood product not under roof, with weathering, but with no constant contact with ground or water, accumulation of water in the wood to be expected, including in spatially limited areas. Yes Yes No No Yes 1; 2

Besides the individual species of wood selected and its natural durability, the service life of timber can be significantly influenced by structural timber protection. 

If wood is exposed to high levels of moisture for lengthy periods, it will be damaged by fungal decay. This can be prevented by the proper planning of structural measures to protect the wood at the execution stage. 

Where possible, upright, load-bearing timber components should never come into direct contact with the ground in external areas. To protect them from splashing, it is advisable to maintain a minimum gap of approx. 15 cm (mounting on supports). 

Horizontal wooden structures should likewise avoid any direct contact with the ground and be kept a sufficient distance from the subsoil. To prevent water from collecting, horizontal areas should always have a slight gradient. 

 

Measures to extend the durability and service life of wooden structures:

  • Construct timber components so that water can always run off
  • Prevent waterlogging
  • Ensure adequate ventilation
  • Avoid contact with the ground
  • Use stainless steel screws that will not rust 
  • Clean and maintain timber components at regular intervals 
  • Manual protection is possible, e.g. by dipping, painting or spraying

Contact

sortimentimg
Uwe Lutz

Uwe Lutz
Head of Sales Specialist and Building Materials Trading | Zunftholz

+49 9853 338-206 lutz.uwe@rettenmeier.com