best wood CLT BOX - CEILING FS Wooden box element for multi-storey timber construction with sound and fire protection requirements
The further development of the CLT BOX: The best wood CLT BOX - CEILING FS is a wooden box element consisting of two CLT boards with ribbed wood glued in between. The integrated sound insulation provides improved impact sound insulation in the low-frequency range.
Winner of the ARCHITECTS' DARLING AWARD 2020 GOLD in the category "Best Product Innovation Shell Construction":
- Highest overall satisfaction
- 100 % recommendation
- Highly significant from an architect's point of view
- Convincing in construction time reduction, sustainability and fire protection
Advantages:
- suitable for multi-storey construction
- improved impact sound insulation in the low-frequency range
- high resistance to fire
- high static load-bearing capacity with comparatively low weight
- large spans and thus column-free rooms possible
- low construction height
- high degree of prefabrication and simple connection of the ceiling elements for fast and economical assembly
- utilisation of advantages of solid timber and timber post and beam construction methods
- high-quality finished visible quality on the underside with additional surface finishing possible
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C24, GL 24h
Strength class
Fields of application
- Ceiling
Delivery formats
-
Type of wood & Quality
- local spruce, industrial quality
- scandinavian spruce, visual quality
- local spruce, premium quality
| Width (mm) | |
| 900 to 1200 | |
| 220 | |
| 240 | |
| 260 | |
| 280 | |
| 300 | |
| 320 | |
| 340 | |
| 360 | |
| 380 | |
| 400 | |
| 420 | |
| 440 | |
| 460 | |
| 480 | |
| Total height (mm) | |
| Length | 2.30–16.00 m, from 440 mm 8.00–16.00 m |
| Width | 1000–1200 mm (900–1000 mm – Price on request) |
| GLULAM ribs width | 80/100/120 mm depending on statics |
| Upper CLT board | 60 mm |
| Untere CLT Platte Dicke | 60 mm, in 90 mm bei erhöhten Brandschutzanforderungen |
| Number of ribs | 3 |
| Minimum production length | per element width 8.00 m |
| up to F60/REI60 | lower CLT panel 60 mm |
| up to F90/REI90 | lower CLT panel 90 mm |
| Acoustic board | placed in the rafter and glued to the lower CLT board ex works (wood fiber acoustic board) |
| Drillings | ex works (for putting in the customer-provided chippings) |
| Chippings | supplied in the required quantity and in 25 kg PE sacks and put in by the customer on site |
| Chippings plan | included in scope of delivery |
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. 15 % at delivery |
| 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.
best wood CLT BOX - THE solution for multi-storey timber construction
Improved sound insulation
The integrated sound insulation of the best wood CLT BOX - CEILING FS consists of a wood fibre acoustic board and the best wood fill supplied. This specially coordinated combination ensures improved impact sound insulation in the low-frequency range.
High fire resistance
The best wood CLT BOX - CEILING FS was tested at MFPA Leipzig GmbH for fire resistance according to DIN EN 1365-2:2015-02 and DIN EN 1363-1:2012-10. In the process, it was able to achieve F60/F90 or classification report REI60/REI90 with a structure in accordance with the general building authority test certificate.
The fire protection test was carried out with wood fibre acoustic board and fill.
Improved sound insulation
The integrated sound insulation of the best wood CLT BOX - CEILING FS consists of a wood fibre acoustic board and the best wood fill supplied. This specially coordinated combination ensures improved impact sound insulation in the low-frequency range.
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