The Duro-Last vinyl roof membrane is a proprietary thermoplastic formulation consisting of PVC resins, plasticizers, stabilizers, biocides, flame retardants, and U.V. absorbents. A 14 x 18 threads per inch weft-inserted knitted scrim that is laminated between two layers of PVC film gives the membrane its strength and durability. The Duro-Last single-ply membrane is available in white, gray, dark gray, tan, or terra cotta.
The Duro-Last Roof System is resistant to fire, chemicals, grease, high winds, and punctures, and easily accommodates wide temperature extremes. The Duro-Last Roof System has endured such devastating storms as Hurricane Hugo, and Hurricane Andrew. In 1989, 130 Duro-Last roofs remained undamaged after the force of Hurricane Hugo destroyed many buildings in the Charleston, South Carolina area.
A Proven Performer Backed by the Industry's Best Warranty
Duro-Last has met or exceeded all major fire, wind, and regional code requirements. These certifications - including Factory Mutual and Underwriters Laboratories - reinforce Duro-Last's leadership in providing the consistent, watertight integrity that building owners expect.
Since its creation in 1978, Duro-Last Roofing, Inc. has had over 2 billion square feet of roofing system installed throughout the United States, Canada, and Mexico. Many of Duro-Last's original roofs still remain intact and continue to perform exceptionally well to this very day. Duro-Last provides many options to the commercial and industrial roofing industry. From 20-year, no-dollar-limit (NDL) labor and material warranties to 15- and 20-year warranties that cover hail and high wind.
Do you want a warranty the does not exclude for ponding water as almost all other roofing warranties do? Then Duro-Last has a warranty for you. Do you want a warranty that includes coverage against consequential damages that result from defects in the Duro-Last material or workmanship? Then Duro-Last is your choice. There is simply no better warranty in the roofing industry than a Duro-Last warranty.
Prefabrication Saves Money and Protects Against Leaks
Duro-Last has been the industry leader in producing custom-fabricated single-ply roofing systems, designing each roof to fit building specifications exactly, and manufacturing it under controlled factory conditions. Duro-Last prefabrication eliminates up to 85% of on-site, rooftop membrane seaming, greatly reducing the likelihood of installation errors and leak problems in the future.
Prefabricated roofing systems are easier to install throughout the year, even during adverse weather conditions. Installation time is reduced so the contractor can get on and off the job quickly. The relatively small amount of roof membrane seaming done in the field is completed with hot-air welding methods, which are virtually unaffected by cold or damp weather conditions.