Mapelastic SRW, new from Mapei, is a water-based, cold-applied membrane specifically designed for protecting and waterproofing concrete in the most demanding environments, including foundations and green roof systems. The spray-applied seamless rubber membrane can withstand up to 10 atm or 150 psi of hydrostatic head. Elongation greater than 1,600 percent completely bridges and seals cracks in concrete. The product is suitable for use in confined spaces, LEED-compliant and VOC-compliant.