A high performance cellulose fibre reinforced cement sheathing board. It enables rapid installation and is ideal for internal dry wall systems, ceilings, soffits, floors and roofs. Can also be used as an external sheathing board where exposed to the weather for a longer period prior to the outer cladding system being installed. Not recommended as a carrier board for render, however the Renderflex product is a suitable alterative. CE marked.

Key applications:

  • Internal and external wall linings.
  • Fascias and thermal soffit liners.
  • Ceiling tiles.
  • OEM applications.
  • Balcony floor.

Features and benefits:

  • Exceptional racking and impact strength.
  • Excellent weathering properties.
  • Wide range of thicknesses from 3.2–18 mm.
  • Flexibility in applications.

General information


600 x 600 mm

Ceiling tile.

1200 x 1200 mm

Ceiling tile.

1220 x 1220 mm

Ceiling tile.

150 x 1220 mm

Soffit strip.

150 x 2440 mm

Soffit strip.

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Uniclass 2015

Pr_25_71_52_25 Fibre-reinforced cement boardsPrimary


G20/950 Fascias/ barges/ soffits

G20/99 Fascias/ barges/ soffits

H20/10 Sheet cladding

H20/150 Sheet cladding

H20/155 Sheet cladding

K11/145 Battened cement-bonded particleboard floating floor

K11/245 Cement bonded particleboard floating floor

K11/345 Cement-bonded particleboard flooring

K11/60 Board

K11/795 Wall lining on metal framing

K11/845 Cement-bonded particleboard

K11/890 Board

K40/10 Suspended ceilings

K40/270 Boards

K45/350 Boards

U90/425 Rigid ductwork and fittings

U90/46 Rigid ductwork and fittings

Specification data - Fibre-reinforced cement boards

Product Reference



600 x 600 mm

Ceiling tile.

1200 x 1200 mm

Ceiling tile.

1220 x 1220 mm

Ceiling tile.

150 x 1220 mm

Soffit strip.

150 x 2440 mm

Soffit strip.

1200 x 2400 mm

Standard board size.


3.2 mm

Soffit strip.

4.5 mm

Soffit strip, 22 dB sound insulation.

6 mm

25 dB sound insulation.

9 mm

28 dB sound insulation.

12 mm

30 dB sound insulation.

15 mm

18 mm



RCM Foil Tape

Waterproofing seal.

RCM Intusil

Neutral cure sealant for use in gaps and joints.

RCM Joint Seal

Air tightness seal.

Standard product features


  • Smooth front and textured back face.
  • Nominal density: 1330–1420 kg/m³.
  • Bending strength (Modulus of Rupture): 19.0 MPa.
  • Modulus of Elasticity (MoE): 5.6 GPa.
  • Thermal conductivity: 0.30 W/m·K.
  • Fire rating (BS 476-6 and -7): Class 0.
  • Frost resistance: Five star.
  • Fungus and termite attack: Highly resistant.
  • Durability (minimum): 30 years.

Product Options


Ceiling tiles can be supplied square or bevelled edged in the following sizes:

  • 600 x 600 x 6, 9 or 12 mm.
  • 1200 x 1200 x 6, 9 or 12 mm.
  • 1220 x 1220 x 6, 9 or 12 mm.

Recommended fixing:

5 x 32 mm or 41 mm Climaseal fixing, 15 mm from edge.

Third party certifications
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