Permascreed is a new mastic asphalt screed from Permanite Asphalt which offers a speedy way to create drainage falls and a stable base for flat roof waterproofing systems and mastic asphalt car parks.

Mastic asphalt is a mixture of limestone and bitumen commonly used for roofing, tanking, paving and flooring. The bitumen and closely graded stone are added together to form a molten mass that is ...

A good example of a durable long-term roof system is two-coat mastic asphalt, providing a waterproofing thickness of 20mm, which is then protected with thermal insulation and stone ballast. Recently, ...

Powerdeck F from Recticel Insulation is a closed cell, rigid PIR foam insulation board for use on warm flat roofs under built-up felt, mastic asphalt and approved single-ply membrane waterproof ...