A Duro-Last roofing system is a strong, reinforced thermoplastic single-ply membrane that is perfect for commercial and industrial buildings with flat or low-sloped roofs. The membrane is “precision fabricated” to your building’s specifications in a controlled factory environment, including all accessories and edge details. Then the majority of your roofing system components are carefully assembled in a Duro-Last factory and shipped to your building site for final installation. A Duro-Last roof is resistant to fire, chemicals, grease, high winds, and punctures, and it easily accommodates wide temperature extremes. Once installed, it is virtually maintenance-free, unlike other roof materials that may require regular patching or other repair. The proof is on the roof: over a billion square feet of Duro-Last roofing have been installed throughout the U.S. since 1978, and the vast majority of those roofs are still in service. Many Duro-Last roofs have outlasted their owners’ expectations by 5 years, 10 years or more.

Four Seasons prefers to install Duro-Last Roofing Systems, which consist of mechanically adhered, heat welded, single-ply thermoplastic material. Through the many roofing projects that Four Seasons has completed, Duro-Last has provided the most reliable, long-lasting roofing results for Four Seasons and its clients.

Duro-Last claims 30 years of reliability and durability, and is expected to last as long as 35 – 40 years – decades longer than other roofing systems! The Duro-Last formula has remained unchanged since 1978.

Compare Duro-Last® to competing products: comparison chart

Duro-Last is cost competitive to all other commercial roofing systems. What’s more, Duro-Last claims the best warranty in the roofing industry. With your business’s Duro-Last purchase comes a 15 year transferable warranty that covers labor, materials, consequential damage, and ponding water.

Duro-Last is the highest Energy Star rated roof system with a reflectivity 87.6% in the first year. The reflectivity of a Duro-Last Roofing System will remain at 86% after three years. This means that less heat will be absorbed by your building and its machinery allowing it to stay cooler than with other roofing systems, which are at best only 26% solar reflective. Consequently, your business will use less energy to heat and cool the building. Duro-Last material can be installed over 90% of existing roofing systems, meaning that millions of tons of roofing material waste do not go to landfills. Moreover, Duro-Last is a co-polymer alloy (CPA), which is 100% recyclable at the plant so scraps can be reprocessed and recycled repeatedly. Post-consumer Duro-Last materials can be recycled and reused in a variety of ways including walkway pads on roofs and around ice rinks, liners for land fills, carpeting, flooring, speed bumps, and asphalt road patching material. Additionally, Duro-Last Roofing, Inc. is a member of the U.S. Green Building Council which created Leadership in Energy and Environmental Design (LEED)-a rating system which motivates developers and building owners to use environmentally friendly products and designs.