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
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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 |
Quality
For your and our safety, we take great care to ensure a high standard of quality.
Carmen Schneider about the best wood CLT BOX - ROOF
best wood CLT BOX - ROOF on the construction site
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