Tremco® 2560 Protection Board is a semi-flexible asphaltic sheet. It consists of a core made from a blend of asphalt, plasticizer and inert fillers. This core is sandwiched between two skins of an asphalt-saturated fiberglass. This composition is then molded and formed under heat and pressure into sheets. Tremco 2560 provides protection for approved waterproofing membranes during and after construction. The tough durable properties of the product make it ideally suited to withstand the shock and impact of rugged backfilling operations, as well as on-site foot traffic. It is used as a protective course for foundation walls, roof terraces, planters and tunnels.