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SAGINAW, MICHIGAN – Duro-Last, Inc. announces the addition to its Duro-Guard product line with Duro-Guard SOPRAVAP’R, a vapor retarder and air barrier membrane. This product is composed of a self-adhesive SBS modified bitumen with a polyethylene facer on the top surface and a silicone release film on bottom. Duro-Guard SOPRAVAP’R addresses the movement of air in roof assemblies as required in the 2012 International Energy Code. When correctly engineered into a roof assembly, it will contribute to long lasting thermal and waterproofing performance in all climate zones for all colors including white membranes provided by Duro-Last. Duro-Guard SOPRAVAP’R can also be used as a temporary roof in new construction or roof tear offs. Duro-Guard SOPRAVAP’R can be installed on steel, plywood, gypsum, concrete board, asphalt panel, or concrete deck. The addition of the Duro-Guard SOPRAVAP’R provides Duro-Last customers with another Edge-to-Edge & Deck-to-Sky™ solution. About Duro-Last®, Inc. Known as the “World’s Best Roof®”, Duro-Last®, Inc. is the world's largest manufacturer of custom prefabricated, thermoplastic single-ply roofing systems. Factory controlled custom prefabrication eliminates up to 85% of field seams, resulting in lower on-site labor costs and easier installation. This highly sustainable and extremely durable roofing system is leak-proof, virtually maintenance-free and resistant to chemicals, fire, punctures, and high winds. Over two billion square feet of Duro-Last membrane has been installed throughout North America. Duro-Last is headquartered in Saginaw, Michigan with additional manufacturing facilities in Grants Pass, Oregon; Jackson, Mississippi; Sigourney, Iowa; and Carrollton, Texas. For more information on Duro-Last, call 800-248-0280 or visit www.duro-last.com.