Premier Mastic Asphalt

Types of Mastic Asphalt

Mastic Asphalt for Roofing (limestone aggregate BS 6925:1988 Type R 988/T.

Although Kitemarked and covered by BSI Certification the following grades are manufactured to within much narrower requirements than those set out in the British Standard specification.

Polymer modified mastic asphalt is now available and is designed to provide even higher performance characteristics than standard grades of asphalt roofing. It provides increased high temperature stability coupled with low temperature flexibility in all roofing situations, particularly over insulated substrates.