Cembrit Cempanel Particle board

Cempanel (cement particle board) is stronger than timber and plasterboard and is often chosen for its good racking strength. Available in various thicknesses for specific applications such as internal linings on rainscreen cladding projects (sheathing), general purpose external boarding, floors, studwork interior walls or even lining for shipping containers. Cempanel is both stronger and less absorbent than timber and plasterboard. The high cement and alkaline content also resists insect and fungal attack. Cempanel is often chosen for its good racking strength.
Class “0” cement particle board with excellent impact, fire and acoustic properties. Its durability, consistently high manufacturing
tolerances and lack of need for wet trades makes Cempanel ideal for off-site and modular construction.

Thickness: 10mm
Length: 2400mm
Width: 1200mm
Thickness options: 8mm,10mm,12mm,16mm,18mm,20mm,24mm
Quantities (sheets) per pallet: 45
Colour Options: Natural grey
Fire Resistance: Class 0
Density: ≥ 1000 kg/m3 (average 1330)
Thermal conductivity: 0.1 W/m°c
Guarantee years: 15
Net Weight m²: 13.0kg
Appearance: Grey surface with particulate core
Composition: 69% cement and 31% fine wood
Material: Cement particle board
Accreditation: Saint Gobain Weber, Stotherm
Sound reduction in dB: 31

Key facts:
Backer for EWI
Commodity price
High racking strength
Multiple thicknesses ( Suitable for a wide variety applications requiring different strength characteristics)

Interior Finishes:
Prime board with alkali resistant primer before using acrylic, epoxy or polyurethane paint/coating. Do not use oil based paints. Where there
are large changes in moisture content and temperature, or where conditions on both sides of the board differ significantly, paint both
sides of the board to prevent board distorting.

Product Specification
Cempanel is an exterior and interior cement particle cladding and lining board that is far superior to timber sheathing. Cempanel can absorb small amounts of moisture whilst remaining structurally sound.

Fire Resistance
Prime board with alkali resistant primer before using acrylic, epoxy or polyurethane paint/coating. Do not use oil based paints. Where there are large changes in moisture content and temperature, or where conditions on both sides of the board differ significantly, paint both sides of the board to prevent board distorting

Composition
Comprising by weight 69% cement and 31% fine wood particles with trace amounts of process additives and mineralizing agents, the wood particles are the main ingredient by volume. These ingredients are mixed and laid onto carrier plates which are stacked and compressed to the desired thickness until the cement has hardened. The boards are then conditioned to bring them to optimum moisture content. Once fully matured the boards are trimmed and quality inspected.
Product consistency across the range is ensured as all Cempanel thicknesses and sizes are manufactured by the same producer. Conforms to EN 634 and is rated as Class B-s1,d0 to EN 13501-1+A1.
Thermal insulation
Having a 0.1 W/mºC K value makes Cempanel cement particle board popular as a lining in temperature controlled spaces or as a partition
board.

Sound reduction
With a density of 1100-1300kg/m3 Cempanel is also frequently used as a sound proofing board for airborne sound. Sound reduction achieved by
single skin Cempanel for selected thickness of board is shown above.

Insulated render carrier
Cement particle boards are truly versatile. Cempanel’s structural stability makes an ideal carrier board for insulated render as well as for
large or small format coated cladding systems.

Racking strength
High dimensional stability contributes to improved performance and enhanced structural stability.

Fixings
Countersunk steel or galvanized self-tapping screws 3.5mm - 4.2mm diameter, 2.5 to 3 times the board thickness. Method – nails screws or staples, manually, pneumatic or power fixed.

Site work
Cempanel should be cut in the same way as chipboard with tungsten carbide tipped blades at 3000 - 4000 r.p.m. If a highly sanded surface is required e.g. for direct application of paint, conventional hand held wood sanders can be used indoors in
conjunction with dust extraction equipment. Most common woodworking tools can be used on Cempanel. It can
be sawn, drilled, planed, routed, nailed or screwed. It is relatively lightweight and with no need for wet trades, cement particle board
is one of the most workable panel materials available to the UK construction industry.

Joint sealing
Where Cempanel is used as a carrier board for external cladding applications particular attention should be paid to wind load.
A 5mm gap should be left between boards which is covered with a 50mm, 1436 grade aluminium sealing tape, alternatively the gap can
be filled with a bead of polyurethane sealant.

Accreditations
Insulated Render Systems:
Saint Gobain Weber, Maulden Road, Flitwick, Bedford, MK45 5BY.
The use of Cempanel will not affect the guarantee offered by Weber. Sto Therm, 2 Gordon Avenue, Hillington Park, Glasgow, G52 4TG.
The use of Cempanel in 12mm thickness (or greater) has been found to be suitable to accept installation of Sto Therm external wall insulation systems in mechanically and adhesively fixed variants.

For further advice, please contact Cembrit:
Tel: ( 020 8320 1184 )