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Application

Suitable for following applications:

  • Sheathing board on metal and timber frame.
  • Acoustic roofing and flooring.
  • High impact partitioning.
  • Shuttering.
  • OEM Application where improved strengths and density are required.

Description

Rigid, medium density, high performance wood/ cement particle bonded sheathing board which combines the strength and durability of a concrete product with the workability of timber.


An excellent sheathing and acoustic building board, the product can be used as an outer sheathing board onto metal or timber frame structures, behind the outer cladding finish. They are manufactured from chemically treated rubber wood chips mixed with Portland cement.


Fully tested to BS EN 634-1 and BS EN 434 2 and meets the correct pull-out and performance levels to carry EWI and rainscreen systems. Conforms to BS EN 13986, BS EN 89/106/EC and BS EN 594.


Fire rated to EN 13501-1 class B-s1, d0. Cemboard can be used behind all types of facade solutions, as well as in many acoustic floor and roof constructions.


Features and benefits:

  • Provides excellent acoustic properties.
  • Good water repellence properties.
  • Improved fire performance over timber products.
  • High impact resistance.
  • Formaldehyde free.
  • Fungus and termite attack: Highly resistant.
  • Durability (minimum): 30 years.
  • Smooth front and back face.
  • Nominal density: 1250–1300 kg/m³.
  • Bending strength (Modulus of Rupture): 9.0 MPa.
  • Modulus of Elasticity (MoE): 4.5 MPa.
  • Thermal conductivity: 0.26 W/m·K.
  • Material available with BM Trada FSC Chain of Custody. CE marked.
  • Density ≥1000 1290.35 kg/m³.
  • Bending Strength (Modulus of Rupture) ≥9 13.64 N/mm².
  • Modulus of Elasticity (MoE) ≥4500 6284.61 N/mm².
  • Swelling in thickness (24 hrs) ≥1.5 0.90 %.
  • Internal bonding IB ≥0.5 0.68 N/mm².
  • Swelling in thickness after Cyclic test (EN 317 & EN 321): ≥1.5 1.11 %.
  • Internal bonding after Cyclic test (EN 317 & EN 321): ≥0.3 0.51 N/mm².
  • Release of formaldehyde: Class E1.
  • Moisture content: 6-12 9.02 %.
  • Squareness: 2 0.95 mm/m.
  • Straightness: 1.5 0.99 mm/m.

General information

Color

Grey

Material

Cement

Shape

Rectangle

Length

2400 mm

Manufacturer guidance

Non standard (old stock may be possible if customer committed to MOQ and lead time).

Width

1200 mm

Manufacturer guidance

Non standard (old stock may be possible if customer committed to MOQ and lead time).

Height

Uniclass

Pr_25_71_97_12 Cement-bonded particleboardsPrimary

CAWS

K11/145 Battened cement-bonded particleboard floating floor

K11/245 Cement bonded particleboard floating floor

K11/345 Cement-bonded particleboard flooring

K11/485 Wall sheathing

K11/585 Roof decking

K11/60 Board

K11/795 Wall lining on metal framing

K11/845 Cement-bonded particleboard

K11/890 Board

Specification data - Cement-bonded particleboards

Standards

To BS EN 13986:2004.

To BS EN 13986.

ASTM C 518-10.

Performance class

Fire rated to EN 13501-1 class B-s1, d0.

Thickness

8 mm.

Guidance for specification option:

29 dB sound insulation.

10 mm.

Guidance for specification option:

31 dB sound insulation.

12 mm.

Guidance for specification option:

32 dB sound insulation.

16 mm.

Guidance for specification option:

33 dB sound insulation.

18 mm.

Guidance for specification option:

33 dB sound insulation.

20 mm.

Guidance for specification option:

33 dB sound insulation.

24 mm.

Guidance for specification option:

35 dB sound insulation.

Finish as delivered

-

Colour

Light grey.

Product Reference

RCM CEMBOARD

Accessories

None.

RCM Foil Tape.

Guidance for specification option:

Waterproofing seal.

RCM Intusil.

Guidance for specification option:

Neutral cure sealant for use in gaps and joints.

RCM Joint Seal.

Guidance for specification option:

Air tightness seal.

FireRating

To BS EN 13501-1 class B-s1, d0.

Fixings

Steel Frame 4.8 x 38 mm Wing tip self drilling fixing.

Guidance for specification option:

Recommended fixings:

4.8 x 38 mm wing tip self-drilling fixing, 15 mm from edge.

Timber Frame 4.2 x 42 mm Climaseal self drilling fixing.

Sustainability data

Contains Red List materials

No

Country of material origin

Thailand

Country of product manufacture

Thailand