Cembrit Windstopper Extreme. - Sheathing Board
Verified by manufacturer 7 months ago
BBA Agrément Certificate
Certificate type
'A' fire rated fibre cement sheathing board.
Application
Suitable for use as a through wall solution or system, sheathing and roofline soffits.
Description
A non-combustible, breathable fire rating tested sheeting board consisting of grey cement and limestone filler reinforced to absorb and release moisture without affecting durability, strength or performance.
Features and benefits:
- High-density material with high impact resistance.
- Can be pressure washed.
- Suitable backer for laminates and for use in composite panels.
- Fire tested up to 60 or 120 minutes, depending on model.
- Class A2 fire rating to EN 13501-1.
- Resistant to rot and fungal growth.
- Can be left exposed for 6 to 12 months, depending on model.
- Lightweight 4.5 mm-thick option.
General information
Color | Grey |
Finish | Smooth |
Material | Fibre cement Homogeneous |
Shape | Rectangle |
Length | 2400 mm 2700 mm 3000 mm |
Width | 1200 mm |
Height | 4.5 mm 9 mm |
Uniclass | |
CAWS | K11/485 Wall sheathing K11/60 Board K11/845 Cement-bonded particleboard K11/890 Board |
Product range |
Specification data - Cement-bonded particleboards
Standards | To BS EN 12467:2004, Class NT D31. |
Performance class | To BS EN 634-2. |
Reaction to fire classification | To BS EN 13501-1, Class A2-s1, d0. |
Thickness | 4.5 mm.Guidance for specification option: Not available with Cembrit Windstopper Basic. 9 mm.4.5 mm.Guidance for specification option: Not available with Cembrit Windstopper Basic. 9 mm. |
Decorative overlay | Cembrit Windstopper Extreme homogenous coating. |
Preservative treatment | Cembrit boards are produced according to a flow-on method. |
Product Reference | Cembrit Windstopper Basic Guidance for specification option: Can be left exposed for 6 months, 60/60 fire rating (one hour). Cembrit Windstopper Extreme Guidance for specification option: Can be left exposed for 12 months, 90/90 fire rating (1.5 hours, 9 mm only). |
Size (w x l) | 1200 x 2400 mm. 1200 x 2700 mm. 1200 x 3000 mm. |
Weight | 14.1 kg/m². |
Sustainability data
Contains Red List materials | No |
Embodied carbonA1-A3 (production stage) as defined in BS EN 15804 | 13.3 kg CO₂ eq/m² Self declared Guidance for specification option: Dependent on model. Consult manufacturer's literature for information. |
Recyclability | 0 |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 Revit | - | 1 |
 IFC | - | 1 |
Third party certifications
BBA Agrément Certificate
21 5885 BBA cert. for Windstopper Extreme 9 mm, unlimited
Literature
Windstopper Extreme - 120 minute fire test