Summary
A wind and weatherproof protection for exterior walls.
A wind and weatherproof protection for exterior walls.
Application
Suitable for use as a through wall solution or system, sheathing and roofline soffits.
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.
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.
Product certifications
Color
Grey
Grey
Material
Fibre cement
Fibre cement
Shape
Rectangle
Rectangle
Length
1200 mm, 2700 mm, 3000 mm
1200 mm, 2700 mm, 3000 mm
Width
600 mm, 900 mm, 1200 mm
600 mm, 900 mm, 1200 mm
Height
4.5 mm, 9 mm
4.5 mm, 9 mm
SKU Code
WSE 4.5 mm, WSE 9 mm
WSE 4.5 mm, WSE 9 mm
Specification
Classification data
Standards
To BS EN 12467.
To BS EN 12467.
Reaction to fire classification
To BS EN 13501-1, Class A2-s1, d0.
To BS EN 13501-1, Class A2-s1, d0.
Thickness
9 mm.
4.5 mm.
Edges
Square.
Square.
Finish as delivered
-
-
Colour
Grey.
Grey.
Additional properties
Fixing
Steel., Wood.
Steel., Wood.
Dimensions
1200 x 600 mm., 2700 x 900 mm., 3000 x 1200 mm.
2700 x 900 mm., 3000 x 1200 mm.
BendingStrength
13.2 MPa (along grain, ambient); 16.4 MPa (across grain, ambient).
5.5 MPa (along grain, wet); 7.4 MPa (across grain, wet).
5.5 MPa (along grain, wet); 7.4 MPa (across grain, wet).
17.5 MPa (along grain, ambient); 22.1 MPa (across grain, ambient).
7.9 MPa (along grain, wet); 11 MPa (across grain, wet).
7.9 MPa (along grain, wet); 11 MPa (across grain, wet).
ThermalConductivity
0.32 W/(m·K).
0.32 W/(m·K).
Flexural Modulus
5.5 GPa (along grain ambient); 12.9 GPa (across grain, ambient).
2.3 GPa (along grain wet); 5.8 GPa (across grain, wet).
2.3 GPa (along grain wet); 5.8 GPa (across grain, wet).
16.9 GPa (along grain ambient); 16.1 GPa (across grain, ambient).
7.6 GPa (along grain wet); 8 GPa (across grain, wet).
7.6 GPa (along grain wet); 8 GPa (across grain, wet).
Sound insulation rating
28–32 dB.
25–29 dB.
Weight
13.6 kg/m² (including 10% moisture).
7.7 kg/m² (including 10% moisture).
Air permeability
To EN 12114, 0.005 m³/m² h Pa.
To EN 12114, 0.005 m³/m² h Pa.
Dry density
1375 kg/m³.
1554 kg/m³.
Water absorption
21.3% (after 24 hours).
19.9% (after 24 hours).
Water vapour transmission properties
8 g/m²/day.
8.3 g/m²/day.
Sustainability data
Material
Fibre cement
Fibre cement