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Duro-Last Roofing

DURO-LAST is a custom prefabricated single-ply roofing system that is perfect for any flat, low-sloped, new or retrofit application on either a residential or commercial building. It's durability, energy efficiency and exceptional warranty make it a smart choice for any home or business and RAM Exteriors has the knowledge and expertise to get the job done right.

Duro-Last Benefits

Find out about the many benefits of choosing the Duro-Last Roofing System!

  • Proven 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.

  • The Product

    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.

  • Pre-Fabricated

    Each Duro-Last project is prefabricated to fit every roof precisely. By performing 80-85% of membrane seaming in their controlled factory environment, Duro-Last reduces the potential for rooftop installation errors and leaks. Also, custom fabricated stacks and curb flashings eliminated the majority of on-site work at the most critical areas of the roof – transitions and penetrations.

  • Durable

    With a Duro-Last roofing system, high winds, snow and other severe weather are not detrimental to the performance of the system. Once installed, a Duro-Last roof is watertight and virtually maintenance free. The Duro-Last roofing system is also fire retardant, and resistant to chemicals, high winds, grease and punctures.

  • Business As Usual

    Installation is quiet and safe without loud machinery, hazardous materials, noxious fumes, hot tar or mess. A new Duro-Last roofing system can often be installed over an existing roof without an expensive tear-off, virtually eliminating debris that could disrupt building activities or damage sensitive equipment.

  • Energy Efficient

    The Duro-Last white membrane is highly-reflective throughout its life span on the roof, saving significant energy and money for building owners all over North America.

  • Backed by the industry's best warranty

    Duro-Last is so confident of the durability of it’s roofing systems that we protect commercial and industrial installations with the best warranties in the industry. Our standard, comprehensive 15 year No Dollar Limit (NDL) warranty is transferable, has no exclusions for ponding water, and provides coverage against consequential damages that result from defects in the Duro-Last material and/or installation workmanship.

  • Professionally Installed

    The “World’s Best Roof” is installed by authorized contractors who can draw on the expertise of Duro-Last’s designers, engineers, and quality assurance technicians to ensure that every roof is installed to specification. That’s where we come in. Our crews have been fully trained in the full application of the Duro-Last roof. Not only that, but all commercial and industrial roofs are inspected to ensure that all workmanship is up to best practices, and Duro-Last themselves warranty our work.

  • Delivers long-term value

    Installed throughout the year in all kinds of weather and climates. Custom prefabrication. Energy savings. Durable, leak-proof, virtually maintenance-free performance. Industry-leading warranties. Installed by authorized, professional contractors

Need another reason to choose Duro-Last?

Duro-Last Has Earned the Highest Level of Sustainability Certification for Single-Ply Roofing Membranes. They are now platinum certified under the NSF American National Standard for Sustainable Roofing Membranes - NSF/ANSI 347!

What Does This Certification Mean?

This certification represents that Duro-Last's 40, 50, and 60 mil white, tan, gray and dark gray as well as 50 mil terra cotta membranes are third-party verified as sustainable, durable, and high performing. Duro-Last is only the second manufacturer to obtain the Platinum Level of certification, and with the company's Duro-Tuff, Duro-Fleece, and Duro-Last EV membranes having gold certification for NSF/ANSI 347, Duro-Last has the most product lines certified in the industry.

What Does This Certification Do?

Obtaining this certification will help the Duro-Last membrane meet the market demand for products that comply with green building standards like the Green Building Initiative's Green Globes. Product specifiers and purchasers are under pressure to find products that meet their sustainability criteria, and having the NSF 347 certification can give them the peace of mind of specifying a third-party verified product.

See the Difference...


With the old roofing system


With the Duro-Last roofing system

Compare the Facts...

Duro-Last A B C
Membrane Type PVC TPO EPDM S.B.S
Custom Prefabricated Deck Sheets? Yes, eliminates 80-85% of field seams. No, all seams are handmade on site No, all seams are handmade on site No, all seams are handmade on site
Sheet Construction Factory pre-fabricated into panels up to 2,500 sq ft Roll goods only - 500-1,000 sq ft coverage per typical roll Roll goods only - 1,000 sq ft per coverage per typical roll Roll goods only - 100 sq ft coverage per typical roll
Custom Prefabricated Curb & Stack Flashings Green check mark Green check mark Red X Red X
Custom Prefabricated Scuppers & Parapets? Green check mark Red X Red X Red X
All Flashing material reinforced Green check mark Red X Red X Red X
Flashing Method All Heat Welded Adhesive or heat welded Adhesive or heat welded Torch applied
Warranty Coverage Repair and replacement Repair only Repair only Repair only
Warranty Issued at No Additional Cost? Green check mark Red X Red X Red X
Warranty Coverage for Consequential Damages? Green check mark Red X Red X Red X
A Duro-Last seam

Duro-Last offers the best and most comprehensive warranty in the industry, making the Duro-Last roofing system the best long-term investment for your building.

Get in touch with us today to talk about what Duro-Last can do for your building, and to get your free estimate!

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A Duro-Last roof

Duro-Last boasts manufacturing standards above the rest and customer service second to none, truly making it the "World's Best Roof".

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Duro-Last Tuff Stuff Logo Duro-Last Worlds Best Roof Logo
Big green leaf

Click here to learn about the White Duro-Last® Cool Zone® Roofing System and to find out why it's the best green choice for your building.

Duro-Last Coolzone Logo
Duro-Last Master Contractor Award

RAM Exteriors is pleased to announce that we have received the 2014 "MASTER CONTRACTOR AWARD" from Duro-Last Roofing.

This distinction is given to those contractors who have consistently scored in the "outstanding" category on all commercial installations and have installed and had inspected over 50,000 sq ft of flat roofing. Its the "Best of the Best" award given because of our commitment to quality, dedication to detail, and hard work!

Contact us today to discuss the Duro-Last roofing system!