Building Owners Prefer
Duro-Last® Roofing Systems

Keep Your Doors Open

See why building owners across North America trust Duro-Last Roofing Systems to protect their businesses.

Installed with No Disruptions

Duro-Last Roofing Systems are installed by authorized Duro-Last contractors with no loud machinery, hot tar, or mess. They are also serviceable and can easily be repaired without heavy equipment or an entire replacement. That means no downtime for your business!  If you have ever been in a building with a reroof in progress you will understand exactly what we mean by no smelly hot tar with employees going homesick due to the smell and mess.   

 Durability = True Performance
= Leak Proof

The unique formulation of Duro-Last Roofing Systems delivers long-term value and peace of mind. Two differentiators Duro-Last offers are a high-quality reinforcement scrim and thickness above scrim.

• Knitted in-house, our anti-wicking polyester weft-insertion scrim has a 14 x 18 or 14 x 9 threads-per-inch density – among the highest in the industry. Duro-Last's scrim uses a third tie yarn to prevent runs and doesn't allow tears to spread. The scrim is the backbone of all Duro-Last’s membranes, giving them their strength and puncture resistance. 

• Duro-Last's thickness over scrim – also known as the “performance layer” – is thick, making our membranes extra durable. This means that Duro-Last Roofing Systems provide protection where your building needs it most: the exposed surface of the membrane.

• Duro-last is available in thicknesses from 40 mil to 80 mil and is available in white, tan, gray, and seven other additional colors.

 Industry-Leading Warranties

Duro-Last leads the roofing industry with comprehensive warranty coverage. Duro-Last was the first manufacturer with a warranty that expressly covers consequential damages on commercial buildings. We work hard and stand by every square foot with warranties from 15 years to 30 years for both labor and materials.

With our warranty groupings, we have a level of coverage right for any job.

• Duro-Last Supreme Warranties 

  • Offer consequential damage coverage for both labor and material.

• Duro-Last Ultra Warranties 

  • Cover both material and labor.

  • High wind and/or hail coverage available.

• Duro-Last Basic Warranties 

• Duro-Last Residential Warranties

 Final Inspection

Upon completion of a commercial job, a Duro-Last Quality Assurance Technical Representative will inspect the Duro-Last Roofing System. This means that between the inspections in our manufacturing plant and on the roof, you can be confident that we stand behind our products. Contact UNITED for the Owners Maintenance Checklist and learn what you can do to help protect your Duro-Last Roofing System.

The Prefabrication Advantage

Through our custom prefabricated roofing systems – which can include both membrane and accessories – up to 85% of the seams can be completed in our factory-controlled environment. This eliminates most of the on-site fabrication that can lead to roof leaks. Duro-Last is the only roof manufacturing company to offer prefabrication of the entire roofing system. 

Protect Your Roof

The best way to ensure a long-lasting, watertight roof is to protect your investment with routine housekeeping and inspection. A simple and basic roof maintenance program will help protect your investment by eliminating costly repairs, as well as, potential damages to your building. Contact UNITED to learn more tips for setting up a general maintenance program.

Rock-Ply, Shingle Ply,
and Vinyl Rib Systems

Our Designer Series products are ideal for applications where roof appearance is important, but conventional shingles, roofing ballast, or metal roofing may not be practical. Duro-Last membrane is printed with either a ballast or shingle print, and the Duro-Last Vinyl Rib Roofing System offers the architectural appearance of a standing seam metal roof. All of these systems provide an aesthetic look, plus the watertight performance and long-term durability of the Duro-Last Roofing System.

Roofing Details: Rock-Ply® and Shingle-Ply® Membranes

• Available in roll goods only.

• 50 mil thickness.

• The Rock-Ply membrane is printed with the appearance of a ballast roof.

• The Shingle-Ply membrane is printed with a shingle design in sandstone tan or slate gray.

• Request a sample for the most accurate color representation.

• A complete line of custom prefabricated accessories is available for the Designer Series membranes.

• For available warranties, click here.

Vinyl Rib Roofing System Details

• The Vinyl Rib system consists of the Duro-Last single-ply membrane – a proven performer since 1978 – and separate vinyl ribs that are heat welded to the installed membrane.

• Requires the use of an adhered membrane to the roof deck (no mechanical fasteners) to provide a smooth roof surface.

• Compared to standing seam metal roofs, the Vinyl Rib system offers waterproofing, not just shedding, as well as more effective insulation options.

• Available in all Duro-Last, Duro-Tuff® and Duro-Fleece® colors. Custom colors available upon request, minimum quantities apply.

• A complete line of custom prefabricated accessories is available for the Vinyl Rib system. These flashings are welded to the deck membrane – providing a monolithic, watertight roofing system.

• The Rock-Ply, Shingle-Ply, and Vinyl Rib Roofing Systems are covered by Duro-Last’s leading comprehensive labor and material warranties.