Waterproofing membrane system and method

Abstract

A waterproofing membrane system for waterproofing a concrete substrate includes a first layer comprising a thermoplastic elastomeric waterproof material using advanced polymerization and squeeze technology. The second layer comprises a carrier sheet that comprises a fabric. The third layer comprises an adhesive to provide bonding of the first layer with a concrete substrate upon contact. In addition, the third layer may reduce migration of water and vapor traveling between the first layer and the concrete substrate. In some examples, the waterproofing membrane system also includes a fourth layer to provide mechanical protection and ease of handling for the first layer, the second layer, and the third layer. In some examples, the first layer comprises a thermoplastic polyolefin (TPO), the fabric comprises polypropylene or polyethylene, the adhesive comprises a C5 petroleum resin, and the fourth layer is a protective coating comprising quartz sand (SiO2) having a reflectivity of 4.5%.

Dependencies are inferred from the claim text.