RCM Cemboard is used primarily as an external sheathing or acoustic building board. Used extensively on both metal and timber frame structures, the product is used behind all types of facade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard can be cut, drilled and nailed offering many of the properties of timber. For cutting the product in any volume, we recommend the use of a RCM Poly crystaline diamond (PCD) blade with flat teeth configuration, to avoid excessive wear on unsuitable blades. Please contact our technical department for details.
|Nominal density||1250 – 1300kg/m3|
|Bending Strength (Modulus of Rupture)||9.0Mpa|
|Modulus of Elasticity (MoE)||4.5Mpa|
|Moisture Content||9% ±3%|
|Moisture Movement (EMC to Saturated)||0.15%|
|Fire Rating||B s1, d0 EN 13986|
|Biological Resistance||Highly resistant|
|Frost resistance||3 star|
|Surface Condition||Front face – Smooth
Back face – Smooth
|Durability (life expectancy – minimum)||30 years|
|Standard board size||2400 x 1200mm|
|Sound insulation (dB)†||29||31||32||33||33||33||35|
Cemboard is tested to BS EN634 Part 1 & 2
Cemboard conforms to EN13986, EN89/106/EC & EN594.
4.8mm x 38mm wing tip self drilling fixing.