Knauf Insulation has earned an additional BBA certificate for its Rocksilk RainScreen Slab range – a solution for partially filled masonry cavities.
Rocksilk RainScreen Slab is now certified for use in masonry cavities in both high-rise rainscreen façades and domestic low-rise buildings situated in very severe exposure zones. The BBA certificate means that it complies with building regulations that state that insulation used in partially filled masonry cavities must have third-party accreditation.
“Our Rocksilk RainScreen Slab is already BBA certified for the broadest range of build-ups and thicknesses of any rainscreen solution on the market,” explained Luke Davies, Rock Mineral Wool Product Manager at Knauf Insulation. “This latest addition to the range means that architects and specifiers benefit from the simplicity of using just one product, even if there are different build-ups within the project”.
The product is suitable for use with all types of masonry cavities including blockwork or reinforced concrete substrates with brick, blockwork or natural stone façades.
It is also non-combustible with a Euroclass A1 reaction to fire classification. This means it complies with building regulations that ban the use of combustible insulation on buildings over 18m tall in England and Wales, and restrict their use on most buildings over 11m in Scotland.
With a thermal conductivity of 0.034W/mK, Rocksilk RainScreen Slab at 455mm is available in thicknesses between 50mm and 220mm. The slabs are designed to interlock to prevent unintended gaps that lead to air leakage and lower thermal performance.
For further information about Rocksilk RainScreen Slab or to download the supporting material including a new installation guide, visit www.knaufinsulation.co.uk/insulation-for-partially-filled-cavities
