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, gray, or dark 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).

Factories, schools, churches, government offices, and businesses of all types have chosen Duro-Last because our roofing system is:

Duro-Last is The "World's Best Roof"®

Duro-Last's custom-prefabricated, reinforced, PVC roofing system is ideal for any flat or low-sloped application. Extremely durable and easily installed by authorized contractors without disruption to daily operations, the Duro-Last single-ply roofing system is also leak-proof, resistant to chemicals, fire and high winds, and virtually maintenance-free. Over a billion square feet of the Duro-Last PVC roofing system membrane have been installed on all types of commercial, industrial, and institutional buildings throughout North America.

Prefabrication of Duro-Last's PVC roof membrane not only reduces the material waste associated with the installation of most rolled systems, it also eliminates 80-85% of the typical on-site, labor-intensive seaming required for other single-ply roofing systems. The Duro-Last roofing system also comes complete with all accessories included.

Prefabricated

Every Duro-Last single-ply roof is measured and manufactured to exact size, accommodating every rooftop penetration. Prefabricating the vinyl roof membrane in our controlled factory environment eliminates up to 85% of seaming that is done on-site during rooftop installation, and improves the long-term performance of the roofing system. This precise attention to detail ensures an excellent fit and delivers worry-free, leak-proof protection. Duro-Last can even assist your architect, facilities or maintenance personnel in developing specifications for your roofing project.

Durable

The Duro-Last roofing system, made from a PVC membrane, is resistant to fire, chemicals, grease, high winds, and punctures, and easily accommodates wide temperature extremes. Duro-Last's custom flashing components - made from the same vinyl roof membrane as our deck material - resist ponding water and help solve roof problems before they can occur. Plus with Duro-Last's available Roof-Trak® Protective Walkway System, heavy equipment and maintenance traffic are easily managed.

Installed With No Disruptions

Building occupants will hardly know a new roof is being applied, because installation is quiet and safe. Our PVC roof membrane is mechanically-attached to the deck; edges and vinyl roof components are heat-welded together to complete the watertight, monolithic roofing system installation. There are no loud machines, no hazardous materials, no noxious fumes, no hot tar, and no mess. Because it's made from lightweight vinyl, a new Duro-Last roofing system can often be installed over an existing roof without an expensive tear-off, virtually eliminating dust or falling debris that could interfere with building activities or damage sensitive equipment.

Energy-Efficient

PVC roofing systems make an important contribution to sustainable buildings, and Duro-Last is proud to be a charter partner in the EPA's ENERGY STAR® Roof Products Program. Duro-Last is also a charter member of the Cool Roof Rating Council and a member of the US Green Building Council.Our Cool Zone® roof system has high reflectivity and emissivity values - throughout its life span on the roof - that reduce the amount of heat transferred into a building. Cool Zone roofs are saving significant energy and money for building owners all over North America and increasing comfort level and productivity for building occupants.

From lowering a building's energy consumption to helping facilities obtain LEED® credits to reducing the urban heat island effect, the Duro-Last Cool Zone roofing system is a leading sustainable building product.

 
Duro-Last Roofing Warranties

We're proud to say that Duro-Last's warranties are the best in the industry. Here's why:

• The Duro-Last 15-year commercial warranty comes straight from the company that has manufactured over a billion square feet of roofing membrane since 1978. And our warranty is in addition to any warranty your roofing contractor may provide.

• With a Duro-Last roof, you pay nothing for material or labor for warranted repairs or replacement.

• Duro-Last protects the commercial and industrial building owner with either a 15-year full warranty or a 20-year prorated warranty. Both warranties are transferable, and both provide maximum protection. Our standard warranty includes coverage for consequential damages that result from defects in the Duro-Last material and/or installation.

• Here's the best part about your new Duro-Last roof: the warranty is included at no additional charge.

• The Duro-Last warranty does not require your costly investment in a maintenance program, but regular common-sense attention to building maintenance just adds to your Duro-Last roof investment.

Only Duro-Last can deliver "The World's Best Roof"®...and the very best warranty. Prefabrication, an extensive final roof inspection, and over 20 years of success have proven the Duro-Last roofing system will serve you well.