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Mastic Asphalt

Thermal insulation boards ideally suited to mastic asphalt applications.


Mastic Asphalt is made of specifically graded aggregate and asphaltic cement. The benefits of mastic asphalt are it can be applied to form a continuous waterproof covering over flat, sloped or curved roofs. It can be worked around pipes, rooflights and other details to form a seamless finish. Patented in 1837, it is a traditional waterproofing method which ensures long lasting peace of mind for building owners. Many systems are available in the UK, all of which are compatible with Powerdeck F insulation boards, available in both flat and single layered tapered.