Swisspearl Windstopper Extreme - Cement Board
Verified by manufacturer 4 days ago
WSE 4.5 mm
WSE 4.5 mm
DoP
Certificate type
BBA Agrément Certificate
Certificate type
A wind and weatherproof protection for exterior walls.
Application
Suitable for use as a through wall solution or system, sheathing and roofline soffits.
Description
Windstopper Extreme is a breathable sheathing board with a Class A2 fire rating. The board's composition is designed to absorb and release moisture without affecting the durability, strength or performance of the board. Windstopper Extreme is available in two thicknesses 9 mm and 4.5 mm. Lightweight 4.5 mm can be scored and snapped making for rapid, dust-free installation and is ideal as a temporary cladding.
Both thicknesses provide good acoustic insulation. Specially designed sealing tape (with 12 month UV stability) seals joints and edges providing complete weatherproofing of the building. When installed according to installation instructions.
Features and benefits:
- Will function as a temporary facade for up to 12 months.
- Class A2 fire rating to EN 13501-1.
- Can be fixed to both wood and steel.
- Has a very low vapour transmission resistance.
- Powerfully resistant towards both rot and fungal growth and can withstand considerable fluctuations in weather and climate conditions.
- Long lasting.
- Low maintenance.
General information
Color | Grey |
Material | Fibre cement |
Shape | Rectangle |
Length | 1200 mm 2700 mm 3000 mm |
Width | 600 mm 900 mm 1200 mm |
Height | 4.5 mm 9 mm |
Uniclass | |
CAWS | K11/485 Wall sheathing K11/890 Board K11/845 Cement-bonded particleboard K11/60 Board |
SKU Code | WSE 4.5 mm, WSE 9 mm |
Specification data - Cement-bonded particleboards
Standards | To BS EN 12467. |
Thickness | 4.5 mm. |
Edges | Square. |
Finish as delivered | |
Colour | Grey. |
Fixing | Steel. Guidance for specification option: Swisspearl Windstopper Extreme is fastened with Swisspearl SCR-S 4.2 x 30 mm universal screw on a steel frame. No pre-drilling is needed. Wood. Guidance for specification option: Swisspearl Windstopper Extreme is fastened with Swisspearl SCR-W 3.9 x 38 mm universal screw on a wood frame. No pre-drilling is needed. |
Dimensions | 2700 x 900 mm. Guidance for specification option: L x W. 3000 x 1200 mm. Guidance for specification option: L x W. |
BendingStrength | 17.5 MPa (along grain, ambient); 22.1 MPa (across grain, ambient). |
ThermalConductivity | 0.32 W/(m·K). |
Flexural Modulus | 16.9 GPa (along grain ambient); 16.1 GPa (across grain, ambient). |
Sound insulation rating | 25–29 dB. Guidance for specification option: See manufacturer's datasheet for further details. |
Weight | 7.7 kg/m² (including 10% moisture). |
Air permeability | To EN 12114, 0.005 m³/m² h Pa. |
Dry density | 1554 kg/m³. |
Water absorption | 19.9% (after 24 hours). |
Water vapour transmission properties | 8.3 g/m²/day. Manufacturer guidanceConsult manufacturer's datasheet for further vapour transmissions data. |
Sustainability data
Material | Fibre cement |
Third party certifications
DoP
Declaration Of Performance Windstopper Swisspearl Extreme-Connect
BBA Agrément Certificate
21 5885 BBA cert. for Windstopper Extreme 9 mm, unlimited
Literature
Windstopper Extreme/Connect Datasheet
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