The elastomeric, ethylene propylene diene monomer (EPDM), is a single-ply rubber-appearing roof membrane system that has been around for near
ly 50 years in the commercial/industrial roofing industry.
Typically, fully adhered to a rigid board substrate or insulation board, EPDM then is sealed by a self-adhered EPDM seam/cover tapes that fully seals joints, flashings, edges, walls, projections, laps and seams. These tapes were initially introduced in the 1980’s, replacing liquid adhesives. These adhering tapes have greatly increased the effectiveness, quality, water-tight capability and life span of the overall system.
Also, this kind of system can be mechanically installed with proper steel plates and fasteners (screws), but the membrane must be reinforced, meaning it is manufactured with a scrim, built-in, that provides extra strength.
EPDM is provided by the manufacturer to the installer in large rolls that are rolled out on the respective roof field, to be installed.
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