best wood CLT BOX - ROOF open box element for passive house construction
best wood CLT BOX - ROOF consists of best wood CLT with two glued-on glulam ribs.
The combination of CLT and ribbed wood results in a high static load-bearing capacity with comparatively low weight. The crosswise construction of high-quality raw material in combination with high-quality flank and surface bonding ensures a high degree of dimensional stability.
Advantages
- high static load-bearing capacity with comparatively low weight
- large spans and therefore prop-free rooms possible
- high degree of prefabrication and simple joining of the roof elements for swift and cheap installation
- utilises advantages of solid timber and wood frame construction
- high resistance to fire
- outstanding insulation characteristics due to insulation of spaces for passive house construction
![best wood CLT Box Dach](/site/assets/files/1155/best-wood-clt-box-dach-3.jpg)
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C24, GL 24h
Strength class
Fields of application
- Roof
Delivery formats
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Type of wood & Quality
- local spruce, industrial quality
- scandinavian spruce, visual quality
- local spruce, premium quality
Width (mm) | |
1120 to 1200 | |
160 | |
180 | |
200 | |
220 | |
240 | |
260 | |
280 | |
300 | |
320 | |
340 | |
360 | |
380 | |
400 | |
420 | |
440 | |
460 | |
Total height (mm) |
Length | 2.30–16.00 m, from 440 mm 8.00–16.00 m |
Width | 1120–1200 mm, shiplap edge ≤1150 mm coverage dimensions |
Lower CLT board | 60 mm, in 90 mm with increased fire protection requirements – on request |
Number of ribs | 2 |
Minimum production length | per element width 8.00 m |
Filling wood
- filling wood can be glued on in the factory
- for passing through vertical loads
Technical data
Approval | ETA-21/0336 |
Strength class | Board C24; rib GL 24h |
Application classes | Use in application classes 1 and 2 according to EN 1995-1-1 |
Drying | Kiln dried, wood moisture max.12.5% (± 2.0%) |
Bonding | Clear, water-proof gluing with polyurethane adhesives (free of formaldehyde) |
Lamellae | Board: 20, 30 mm; rib 40 mm |
General information | Planed on four sides, bottom side chamfered 4 mm (measured diagonally) |
Heat conductivity | Rib: λ = 0.13 (W/m*K); board: λ = 0.12 (W/m*K) according toETA-21/0336 |
Specific heat capacity | 1600 (J/kg*K) according to EN ISO 10456 |
CLT board diffusion resistance | μ 20 (damp) / 50 (dry) in accordance with EN ISO 10456 |
Emission class | E1 according to DIN EN 717-1 |
Reaction to fire | D-s2, d0 according to DIN EN 13501-1 |
Fireproofing | Verification possible via the free best wood STATICS software |
Airtightness | Airtight after testing in accordance with EN 12114 from 60 mm |
Carmen Schneider about the best wood CLT BOX - ROOF
best wood CLT BOX - ROOF on the construction site
Accessories
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![](/site/assets/files/5437/best-wood-zubehoer-holz.200x0.jpg)
Suitable accessories
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