Pro-seal is a new damp-proof and waterproofing membrane from Wallbarn. It is a cold applied, easy to install sheet membrane made from elastomeric modified bitumen, designed as a fast, effective waterproofing solution for both horizontal and vertical surfaces. It can be used on roofs, in basements, wet areas, canals, culverts and civil engineering works.
http://www.wallbarn.com/products/waterproofing/