Company & Product Information

In the commercial roofing industry, reflectivity has been the dominant discussion point for several years, and the Duro-Last� Cool Zone� roofing system has set the standard for single-ply roof reflectivity and the resulting energy savings. Now the term �sustainability� is receiving a lot of attention, and once again, Duro-Last is setting the bar.

But what does sustainability really mean for building owners, facility managers, contractors, architects, and other specifiers? It means that the design, construction, maintenance, life-cycle impact, adaptive re-use, destruction, and recycling of roofing components must help meet the long-term environmental standards demanded by today�s high-performance buildings.

Duro-Last� Cool Zone� Information

Duro-Last is a leader in cool roofing solutions. The Duro-Last Commercial Roof reflects up to 86% of the sun�s rays, resulting in saving up to 35% on energy costs! The Duro-Last Roof System has been approved by Energy Star. Of the white, single-ply products rated by the Energy Star program, only the Duro-Last Roof System retained reflectivity this high.

Leak Proof

The Duro-Last membrane is classified as a CPA and is a proprietary thermoplastic formulation consisting of resins and plasticizers, stabilizers, biocides, flame retardant and UV absorbents. This membrane is then laminated to a weft insertion knitted scrim that is produced by overstitching, a non-woven web. Because of this composition and professional installation, the Duro-Last Roofing System provides you with a leak proof roof!

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.

Every Duro-Last roof is measured and manufactured to exact size, accommodating every roof top penetration. Prefabricating the roof in the Duro-Last factory environment eliminates up to 85% of seaming that is done on-site during roof top 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.

The Duro-Last Commercial Roof System can only be installed by authorized Duro-Last contractors who have received extensive training in this system.

Benefits of the Rock-Ply roofing system:

• Provides a ballast look combined with the watertight performance of Duro-Last's proven, thermoplastic, single-ply system.
• Ideal for roofing applications where building appearance is important but conventional ballast is not practical.
• Made from the same durable membrane as the regular Duro-Last roofing system.
• Rock pattern is printed onto the membrane, then a special polymer coating is applied to help protect the finish from marring, fading, and dirt accumulation.
• System is precision-fabricated in a Duro-Last manufacturing facility and 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 Rock-Ply roofing system is covered by Duro-Last's industry-leading, comprehensive warranties.

Download the Rock-Ply Fact Sheet

Duro-Last protects commercial and industrial buildings with a comprehensive 15 year full warranty or a 20 year protected warranty. Both provide maximum protection, including coverage against damage caused by ponding water, and coverage against consequential damages that result from defects in the Duro-Last material.

Track Record

Since its creation in 1978, Duro-Last Roofing, Inc. has had over one 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.