High quality components
made of glued laminated timber
with glued laminated timber
Component length: Max. 60.00 m
Width: Max. 2.60 m (larger widths with dry joint / special gluing possible)
Thickness: 6 to 28 cm as single part gluing (greater thicknesses possible through multiple gluing or block gluing as composite component according to DIN 1052 or DIN EN 14080)
Wood species/strength classes
Wood type: spruce (others on request)
Strength classes: GL 24c for express programme standard
GL 28c / GL 30c for structural components (others on request)
Wood moisture: 10 ± 2 %
Bulk density: approx. 450 kg / m³
Melamine resin gluing system GripPro-Plus, approved according to DIN EN 301:2018. This new generation of adhesive contains no hazardous substances to be declared. With emission values of 1/10 of the permissible limits, these values correspond to those of natural wood. Finger-jointing partly with 1K polyurethane adhesives (PU)
Cutting + joinery
CNC trimming with 5-axis CNC gantries for large components
- Visual quality for surfaces in the viewing area
- Non-visual quality for surfaces outside the visual range
- Special surfaces on request
Paint: Glulam-Varnish (manufacturer Koch & Schulte)
- Active substance-free, diffusion-open middle coat glaze on a fine-particle pure acrylate basis
- protects the surface from weathering and soiling during transport and assembly
- additional options such as hydrophobisation, UV protection or film protection further increase the degree of protection and cover particularly demanding application scenarios
Glulam Varnish certifications:
Declaration of no objection: ISEGA Reg. No.: 37208 U 14 can be used safely for coating storage facilities for feed and food.
Tested according to: DIN EN 71-3 (“Safety of toys”) and DIN 53160 (“Fastness to saliva and perspiration”)
Environmental product declaration according to: ISO 14025 and EN 15804
Declaration number: EPD-FEI-KUS-20160084-IBG1-EN
eco-construction Reg.No: 201701.1101
- Very well suited for MINERGIE-ECO
- Corresponds to 1st priority ECO-BKP B
Calculated burn-up rate
0.7 mm / minute
What can glulam do?
Our product glulam utilizes the ecological advantages of the natural building material wood as well as its excellent material properties. Wood binds CO2 and thus relieves the atmosphere. It has an excellent eco-balance and is therefore the material of choice for environmentally friendly and sustainable construction. With our glulam, you are therefore using an extremely ecological and circular building material that also has a whole range of other valuable properties. Thus, it has a low dead weight, a high fire resistance and a high resistance to chemically aggressive climates.
Advantages for planners
- Countless design options
- Large spans can be realised without supports
- High load capacity with low dead weight
- High fire resistance duration
- Resistance to chemically aggressive climates
- Simple connections to adjacent trades
- High quality level through regular control
- All common roof coverings possible
Advantages for builders
- Economical construction
- High degree of prefabrication
- Short construction time and fast assembly
- High material efficiency
- Low transport costs
- Clearly defined material properties
Advantages for the environment
- Excellent ecological balance
(binding of CO2)
- Only wood grows back indefinitely
- Best material for circular construction
- Take-back obligation for all our components
- DERIX is PEFC certified
Glulam at DERIX
Structure of glulam
An assignment to a combined strength class “GL xxc” can be achieved by the manufacturer of the glulam through different cross-sectional constructions. Glulam of higher strength classes can be produced particularly economically with a combined structure. The higher-strength boards produced in a sorting pass are arranged in the areas of higher tensile stress, the boards of lower strength are arranged in the core or the areas subject to compressive stress.
Homogeneous glulam of one strength class should only be used in exceptional cases, e.g. for structural components predominantly subjected to normal forces, due to the higher costs and the required longer lead time. We offer the standard qualities GL 24c, GL 28c, GL 30c in the wood type spruce.
Swelling and shrinkage behaviour
Composite cross-sections made of glulam represent an interesting, standardised application variant. Here, individual glulam beams are bonded together to form composite cross-sections. Block bonding between two single glulam beams can help to overcome the manufacturing-related limitation of the beam width. For example, beams with a component width of 28 cm or more are usually block-bonded from two individual cross-sections. Simple glued joints with a full rectangular cross-section of glued laminated timber are regulated according to DIN EN 14080:2013-09. However, large box cross-sections or PI panels can also be produced by means of block gluing. The requirements for production are regulated in DIN 1052-10:2012-05.
Block bonded components are often used in bridge structures or highly stressed supports. However, the use of wide-span hollow box girders designed without bracing braces for structures with increased fire protection requirements is also interesting.
Wood-concrete composite ceilings are a composite building material made of glulam and concrete. The composite effect of the two building materials is realised with the help of pin-shaped, bonded or form-fitting fasteners. In the composite cross-section, the timber cross-section takes over the load-bearing function in the tension zone and the concrete that in the compression zone. The timber cross-section can be used in the form of a glulam cross-section or as a board stacking element.
Due to the composite effect, larger spans can be achieved compared to conventional timber ceiling constructions and the dead weight can be reduced compared to pure concrete constructions. Particularly in areas of increased requirements for serviceability and fire protection, high-performance timber ceiling constructions can thus be made possible.
For the realisation of long-span ceilings, composite cross-sections made of X-LAM (flange or plate) and glulam (web) offer an interesting alternative to wood-concrete composite systems. In contrast to pure glulam composite cross-sections, these so-called ribbed ceilings (similar to PI panels) are usually manufactured using screw-press bonding.