Cembrit Special Performance (SP) Board, with a density of 1450 kg/m³, is a lining board that has been specially designed for use in potentially damp or humid situations, such as bathrooms, swimming pool areas, restaurant kitchens and leisure centres.

Produced from cement, cellulose and mineral fillers, Special Performance Board combines superior strength and durability, making it long-lasting with minimum maintenance costs. It has passed the American Ceramic Tile Institute Test.

The main function of constructions in damp and humid areas is to prevent water or moisture penetration into internal walls, floors and ceilings. Damp or humid areas should always be built from material that can withstand moisture and water. Special Performance Board has been developed for demanding applications such as the following:

Special Performance Board is a specially formulated board, sealed both sides with a PVDC sealer that acts as a moisture barrier. Special Performance Board is the result of long product development, and has successfully undergone product testing in the UK, the USA and Scandinavia. Because of the formulation of the product it will not be affected by water, therefore it will not expand, rot or deteriorate.

(Minerit SP base board only) Class 0 to the Building Regulations

Fire propagation test for building materials: Warrington Fire Research Centre, UK, Warres No. 50635 5/90.

Class 1 surface spread of flame for building materials: Warrington Fire Research Centre, UK, Warres No. 50633 5/90.

The Cembrit 35 x 4.2 mm countersunk cutting head screw is ideal for steel studs, and the 40 x 2.3 mm nail or 35 x 4.2 mm screw for timber studs.

Because of its strength it is easy to attach different hangers to Special Performance Board. Fastenings for heavy attachments should be centered on internal studwork.

The loading strengths of different fastenings are shown in the table below. The values given are averages, and apply only to boards without tiles. The security coefficient is 2.

Cembrit Special Performance Board requires careful installation to ensure that its full potential is realised. In areas where tiling is required, it is essential to comply with the relevant codes of practice on board dryness and the secure and rigid bracing of the boards for tiling.

1. Special Performance Board should be fixed to either timber or steel studs at 406 mm maximum centres. All framing must be straight, plumb and true, and must provide firm support for the boards.
2. Cut the boards 5 mm shorter than the floor-to-ceiling height, and butt them firmly against the ceiling.
3. Fix screws or nails, commencing at the centre of the board and working towards the edges.
4. Fix further boards, allowing a 3 mm gap between boards. Joints on both sides of the partition should be on the same stud to facilitate sealing.
5. Seal joints with a silicone sealer.
6. Cembrit recommend the drilling of 2 mm pilot holes.

For a health and safety data leaflet concerning the Cembrit product range, please contact the Cembrit Technical Support Department at the address below.

Dust is minimised when the following tools are used: circular saw with dust cover and collector keyhole saw/jigsaw for cutting large holes universal saw for cutting small quantities hole saw for drilling holes for sockets hand-scriber with hard metal point carbide tipped masonry drill.

Face masks are recommended when there is no vacuum extractor or when large areas of boards are being cut.

For technical support and applications advice, you will always find your supplier anxious to help. If he has no instant answer to your query, you can easily access the technical knowledge of Cembrit ’s own technical support staff to answer queries of a more fundamental nature and to advise on the suitability of particular products in specific applications.

Tel: 020 8301 8900
Fax: 020 8301 8901

Cembonit

Cemcolour

Cemstone

High pressure laminate

Lightweight

Heavy duty

Multi-purpose

Lightweight ceiling tile

3.2 mm CH board