Cembrit Windstopper Extreme
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
Finish | Smooth surface |
Color | Grey |
Material | Fibre cement Homogeneous |
Shape | Rectangular |
SizeAvailable in three sizes. | - |
Uniclass 2015 | |
CAWS | K11/485 Wall sheathing K11/60 Board K11/845 Cement-bonded particleboard K11/890 Board |
Specification data - Cement-bonded particleboards Enhanced data
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.Not available with Cembrit Windstopper Basic. 9 mm.4.5 mm.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 Can be left exposed for 6 months, 60/60 fire rating (one hour). Cembrit Windstopper Extreme 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. |
Environmental information
Contains Red List materials | No |
Embodied carbon | Dependent on model. Consult manufacturer's literature for information. |
Digital objects
| Platform | Compatible | Version | Certified to |
|---|---|---|---|
 IFC | - | 1 | 2.1 |
 Revit | - | 1 | 2.1 |