WeatherKem Calcium Silicate Fibre Cement Board
Verified by manufacturer 5 months ago
BBA Agrément Certificate
Certificate type
EPD
Certificate type
An A1 non-combustible calcium silicate fibre cement board, used primarily for external sheathing or internal applications.
Application
Exterior applications:
- Primarily used as an external sheathing board alongside LGSF and timber framing.
- Timber and steel frame system lining board.
- Render carrier board (approved for use as a render carrier board by Wetherby Building Systems and K-Rend).
- External wall insulation carrier board.
- Temporary hoardings.
- Fascia and soffits.
Interior applications (partitions, ceilings and wall linings):
- Kitchens and wet rooms.
- Splashbacks.
- Bathrooms.
- Shower and bath enclosures.
- Steam rooms and saunas.
- Swimming pool ceiling and wall linings.
Description
A non-combustible, A1-rated, BBA-certified fibre cement board, combining weather, moisture and fire resistance properties with high impact strength, sound insulation and dimensional stability.
Features and benefits:
- 30 years + service life (tested for thickness 6, 8, 9, 12, 15, 16 and 18 mm).
- Rated as a Category A board to BS EN 12467:2012+A2 2018 for applications where they may be subjected to heat, high moisture and severe frost.
- BBA Certified.
- High acoustic properties.
- High racking, durability, pull-out, impact.
- High product density.
General information
Color | Grey |
Material | Fibre cement |
Shape | Rectangle |
Length | Bespoke |
Width | Bespoke |
Height | 6 mm 8 mm 9 mm 12 mm 15 mm |
Uniclass | |
CAWS | K11/845 Cement-bonded particleboard H20/150 Sheet cladding (attached to metal support systems) H20/155 Sheet cladding (attached to timber battens) K11/485 Wall sheathing K11/795 Wall lining on metal framing K11/890 Board K40/270 Boards K45/350 Boards M40/470 Intermediate substrate M40/27 Intermediate substrate K11/63 Cement-bonded particleboard H20/10 Sheet cladding K11/60 Board |
Specification data - Fibre-reinforced cement boards
Standard | To BS EN 12467. |
Fire rating | To EN 13501-1: 2007 + A1: 2009, A1.Guidance for specification option: Non-combustible. |
Weather resistance | To BS EN 12467, category A. |
Sheet size | |
Nominal thickness | 6 mm.8 mm.9 mm.12 mm.15 mm.16 mm.18 mm. |
Length | 2400 mm. |
Width | 1200 mm. |
Edges | Square. |
Finish as delivered | Manufacturer's standard. |
Colour | Grey. |
Accessories | Not required. Kemwell Non-Combustible Joint Seal Kit. Guidance for specification option: The Joint Seal Kit has been specifically designed to create an airtightness seal on Kemwell's range of external sheathing boards. Each kit will provide 100 linear metres.
KemStop FR Flexi Sealant. Kemwell Ampacoll Flexx self-adhesive tape. |
Fixings | Ejot TBF 4.8 Guidance for specification option: Recommended by the manufacturer for fixing 9 or 12 mm WeatherKem to SFS framing. 50 mm long, 3.35 mm diameter nails. Guidance for specification option: For external linings on a timber frame. M4 self-tapping, self-drilling screws. Guidance for specification option: For external linings on a steel frame. Corrosion resistant M4 screws. Guidance for specification option: For installation of WeatherKem as a tile backer board for floors and walls. |
Sustainability data
Country of product manufacture | India |
Material | Fibre cement |
Manufacturing plant location |
Third party certifications
Third party certifications
Literature
WeatherKem Technical Data Sheet
WeatherKem Installation Guide 2021
WeatherKem Brochure 2024