Duro-Last | The World's Best Roof
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Duro-Last | The World's Best Roof
Duro-Last PVC Roofing Membrane Custom Fabricated in large sheets with factory controlled seams.

Duro-Last® PVC Roofing Membrane

The custom-fabricated flagship membrane with more than four decades of proven performance

Made to Order. Made to Last.

The Duro-Last membrane is the heart of our custom-fabricated system. Our proprietary thermoplastic formulation provides exceptional flexibility, reflectivity and resistance to UV radiation, fire and a broad range of chemicals.

Duro-Last is the only single-ply manufacturer offering custom-fabrication of the entire roofing system, including deck sheets and accessories, to precisely fit each building — it’s literally made to order. Since 1978, our custom-fabricated Duro‑Last Roofing System, with its factory-welded seams, has offered contractors better first-time quality with fewer callbacks for more Time off the Roof™ — with clean, quiet installations for less jobsite waste and fewer occupant disruptions.

Complement those benefits with our custom-fabricated accessories designed to address the critical transition areas of a roof, providing superior waterproofing, long-term leak protection and aesthetics, and you have a system that is made to last.

The Duro-Last difference began with our flagship custom-fabricated membrane and today, “custom” remains central to everything we do. We deliver one-of-a-kind service and personalized support for your one-of-a-kind roof, providing unmatched durability and a complete custom experience.

Industry leading performance —
Edge‑to‑Edge and Deck‑to‑Sky™

Duro-Last is a full system roofing provider — from the roof deck to insulation and membrane to custom-fabricated accessories, edge metal, drains, flashings, fasteners and adhesives — we have your roofing needs covered.

Membrane Features

  • Custom-fabricated deck sheets eliminate most on-site seaming, dramatically reducing the potential for leaks — and adding the advantages of a faster, quieter and easier installation with less maintenance and reliable roof performance for years to come.
  • Proprietary Duro-Last PVC formulation provides energy savings and fire resistance and is recyclable.
  • Deck sheets can be mechanically attached, adhered or induction-welded over a wide variety of roof substrates.
  • 50-mil membrane is manufactured with 28 mil of thickness on the top performance layer — the layer of the membrane exposed to the elements on the rooftop — exceeding industry standards and many competitor systems with equal or greater mil values.
  • Weft-inserted (or “woven”) anti-wicking scrim with a density of 18 by 14 threads per inch provides superior strength and puncture resistance.
  • A complete line of Duro‑Last custom-fabricated accessories is available, reducing labor and the potential for leaks at critical transition areas of the roof.
  • NSF/ANSI 347 Platinum certified; UL and FM approved.
  • Backed by Duro-Last’s extensive range of best-in-class warranties: 15-year with consequential damage coverage available for commercial buildings at no additional cost.
Airport Hanger
Damschroder
DiPasqua
Duro-Last® 2024 Custom Fab Award
Northwest Building Specialists
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Duro-Last 40 mil is available in custom-fabricated sections up to 2,500 square feet with a maximum length or width of 100 feet in either direction.

Duro-Last 50 mil is available in custom-fabricated sections up to 2,000 square feet with a maximum length or width of 80 feet in either direction.

Duro-Last 60 mil is available in custom-fabricated sections up to 1,500 square feet with a maximum length or width of 60 feet in either direction. Sections of 60 mil are delivered on carpet rolls only and may be ordered with a maximum sheet length of 24 feet, as the carpet roll is 25 feet long. When shipped, the rolls may be wrapped in a different colored membrane for membrane protection.

Deck Sheets

Mil PVC Film Above Scrim Weight Scrim Bottom Color
40 17 mil 0.22 lbs. per sq. ft. 18 x 14 White, tan, gray, dark gray
50 28 mil 0.29 lbs. per sq. ft. 18 x 14 White, tan, gray, dark gray, terra cotta
60 28 mil 0.36 lbs. per sq. ft. 18 x 14 White, tan, gray, dark gray

40 mil1

Width Length (max.) Roll Area Approx. Weight Approx. Coverage2
64 in. 150 ft. 800 sq. ft. 176 lb. 725 sq. ft.
64 in. 100 ft. 534 sq. ft. 118 lb. 483 sq. ft.
64 in. 50 ft. 267 sq. ft. 59 lb. 241 sq. ft.
32 in. 100 ft. 267 sq. ft. 59 lb. 217 sq. ft.
12 in. 100 ft. 100 sq. ft. 22 lb. N/A
8 in. 100 ft. 67 sq. ft. 15 lb. N/A

1 Custom rolls of maximum 64 in. by 240 ft. may be produced upon request. 2 Assuming 6-inch overlap.

50 mil1

Width Length (max.) Roll Area Approx. Weight Approx. Coverage2
64 in. 150 ft. 534 sq. ft. 155 lb. 483 sq. ft.
64 in. 50 ft. 267 sq. ft. 78 lb. 241 sq. ft.
32 in. 100 ft. 267 sq. ft. 78 lb. 217 sq. ft.
12 in. 100 ft. 100 sq. ft. 29 lb. N/A
8 in. 100 ft. 67 sq. ft. 20 lb. N/A

1 Custom rolls of maximum 64 in. by 240 ft. may be produced upon request. 2 Assuming 6-inch overlap.

60 mil1

Width Length (max.) Roll Area Approx. Weight Approx. Coverage2
64 in. 100 ft. 533 sq. ft. 192 lb. 483 sq. ft.
64 in. 50 ft. 267 sq. ft. 97 lb. 241 sq. ft.
32 in. 100 ft. 267 sq. ft. 97 lb. 217 sq. ft.
12 in. 100 ft. 100 sq. ft. 36 lb. N/A
8 in. 100 ft. 67 sq. ft. 25 lb. N/A

1 Custom rolls of maximum 64 in. by 240 ft. may be produced upon request. 2 Assuming 6-inch overlap.

Features

  • PVC Membrane
  • Custom-Fab Deck Sheets or Roll Good
  • 40, 50 or 60 mil
  • Roll Widths: 8″, 12″, 32″, 64″
  • Five Colors

Warranty

  • 15-Year NDL to 30-Year NDL
  • Consequential Damages
  • 15- and 20-Year NDL Hail and High Wind

Colors

Benefits of PVC

  • Chemical Resistance
  • Longevity & Durability
  • Seam Strength & Weldability
  • Flexibility in Harsh Weather
  • Energy-Efficiency
  • Sustainability
  • Fire Resistance

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Questions?
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Duro-Last | The World's Best Roof

Headquarters | 525 Morley Drive, Saginaw, MI 48601 | 888.301.7712

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