Labels:person | road | sky OCR: Prev Next Water Management of the Building Envelope Membranes Butyl Membrane Waterproofing System Description Butyl Membrane (Isobutylene and Isoprene c sheet applied vulcanized elastomer compounded to the physical properties in the technical data section The butyl membrane is virtually impermeable to water and water vapor The membrane has excellent puncture resistance coupled with outstanding elongation and tensile strength makes this membrane systerm able to withstand ponding water and building movement 89 mqrar outsi tanding
