Learn about the Duro-Last Roofing System 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 weft-insertion knitted scrim that is laminated between two layers of PVC film gives the membrane its strength and durability. The Duro-Last membrane is available in white, tan or gray. Duro-Last has met or exceeded all major fire and wind code requirements, and regional approvals as necessary throughout the country. These certifications reinforce Duro-Last’s leadership in providing the consistent, watertight integrity that building owners expect. Duro-Last has been approved by Factory Mutual as a 1-60,1-75, 1-90, 1-95, 1-105, 1-135, 1-150, 1-165, 1-195, 1-210, 1-270, 1-435, and 1-495 roofing system. Duro-Last is also listed by Underwriters Laboratories as a Class A, B, & C approved material. Evaluation services ICBO and NES have merged to form ICC-ES, which has evaluated Duro-Last for the International Building Code (IBC). The Duro-Last roofing system has been approved by the IBC and by code agency MIAMI-DADE for use in their respective jurisdictions. Duro-Last is proud to be a charter partner of the ENERGY STAR® Roof Products Program. The ENERGY STAR label indicates to building owners and managers that the Duro-Last white vinyl roof membrane can save them money on cooling costs due to its high reflectivity (reflects 88% of the sun’s energy). Duro-Last is also a charter member of the Cool Roof Rating Council (CRRC) and a member of the United States Green Building Council (USGBC). Duro-Last participates in all major technical committees in the roofing industry, plus the American Society of Testing Materials (ASTM).     Duro-Shield®: The Non-Metal Metal retrofit Roofing System Are rusted roof decks and leaky seams starting to compromise your building's watertight integrity? The Duro-Shield metal retrofit roofing system is a cost-effective, single-ply roofing solution that can be installed directly over existing metal roofs. The Duro-Shield system is leak-proof, virtually maintenance-free, and backed by a comprehensive 15-year full warranty or a 20-year prorated warranty. The Duro-Shield roofing system is the long-term way to protect your building against rain, temperature changes, interior drips, ice build-up, and rust and corrosion. If time has caught up with your metal roof, it's time you consider the Duro-Shield roofing system. Contact us today to find out how a Duro-Shield metal retrofit roofing system can help you lock out leaks and lock in your investment.     The Duro-Last® Shingle-Ply Roofing System Duro-Last is continually researching and implementing new product lines that will benefit building owners. That's why we have developed the Duro-Last Shingle-Ply roofing system. Benefits of the Shingle-Ply roofing system: Provides a shingle look and the watertight performance of a thermoplastic, single-ply system. Is ideal for commercial applications where building appearance is important but conventional shingles are not practical. Made from the same durable membrane as the regular Duro-Last roofing system. Shingle design is printed onto the membrane, and then a special polymer coating is applied to help protect the finish from marring, fading, and dirt accumulation. Available in Slate Gray or Sandstone (50-mil only). System is delivered to the job site ready to be unrolled, positioned, and installed by an authorized Duro-Last contractor. All fasteners, flashings, and edge details come with the system. The comprehensive standard Duro-Last warranties cover the Shingle-Ply roofing system.