What is the difference between vinyl and EPDM membranes?
EPDM or Ethylene Propylene Diene Monomer membranes are comprised of a rubber compound that is cross linked for added strength and durability. Seaming options are limited to adhesives and tapes, and the membrane cannot be hot air welded. Vinyl roofing’s hot air welded seams have significantly greater peel and shear strength. White vinyl roofing is highly reflective and meets the requirements of the EPA’s ENERGY STAR program. The program seeks to reduce energy use and reduce greenhouse gases by implementing strategies that lower power demand, improve municipal air quality and reduce the impact of urban heat islands. Vinyl membranes also can be manufactured in virtually any color to match the design objectives of the architect and building owner.
