The remarkable thing about Duro-Last is that the membrane is cut and fitted to your roof's specifications in the factory, cutting down nearly 80% of field welding. Further, drip-edge, scuppers, skirts and nearly every other aspect of the roof are pre-manufactured by Duro-Last, something no other product can boast. Custom pieces can even be manufactured to your roof's exact specifications. Additionally, there are no harmful or abrasive chemicals to choke on, no disruption to the normal flow of business while the roof is being applied and, because of its unique composition, is EPA rated to reflect 85% of the sun's rays, making it the coolest and most cost-effective flat roof available on the market.

The best and most significant part about a Duro-Last roof however, is the warranty. Duro-Last has the best warranty in the business, offering a full, 15-year warranty covering both materials and labor, at no addition charge. We are so impressed by the products and services of Duro-Last that we are proud to say they are our only choice for single-ply roofing solutions.

Some people are wary about using a flat roof, as many roofers will try to apply a flat roof without the proper knowledge of how and why. We can assure that a flat roof can be just as good as any other roof if applied correctly.

When installing a flat roof, proper drainage is crucial. This may sound like common sense, but many roofers fail to install roof drains low enough to allow water to drain without pooling.

More so than with any other roof however, is the need for proper insulation to prevent condensation. The amount of insulation needed to prevent condensation is referred to as its 'R-value'. Every building has a different R-value, depending on what the building will be used for. All contingencies must be considered when determining the R-value needed. High concentrations of moisture, such as in shower rooms, indoor pools and hot tubs, and kitchens, will all have a different R-value for the insulation. If the R-value of the insulation is too high or too low, moisture in the air will condense on the surface of the insulation and cause leaks, even if the roof itself has no faults.

When roof insulation is at the correct R-value, the point at which air moisture condenses should be in the center of the insulation, where it will never become a problem. Every architect should be able to tell you what the R-value of the insulation in your building should be.

On a flat roof, the insulation should always be on top of the decking and never underneath it. Proper ventilation inside the building is mandatory; it can either be done though the roof via air vents or through the walls.

The right choice in roofing products is also very important. Even if Duro-Last is not the choice for you, always choose a product with a real manufacturer's warranty on the product, rather than relying solely on the roofer's warranty. Also make sure that a representative of the manufacturer inspects the roof before the warranty is issued. Duro-Last does this with all commercial buildings. The life of a good flat roof properly installed should be at least 30 years.