Single-Ply Duro-Last® Roofing Systems

Compare the Facts

Duro-Last Manufacturer A Manufacturer B Manufacturer C
Membrane Type PVC TPO EPDM Modified Bitumen
Custom Prefabricated Deck Sheets? Yes No No No
Sheet Construction Factory prefabricated into panels up to 2,500 sq. ft Roll goods only. 500 sq. ft. coverage per typical roll Roll goods only. 1,000 sq. ft. coverage per typical roll Roll goods only. 100 sq. ft. coverage per typical roll
All Flashing Material Reinforced Yes No No No
Flashing Method All heat-welded Glue & heat-welded Glue Hot mopped
Curbs & Stacks Custom Prefabricated? Yes No No No
Scuppers and Parapets Custom Prefabricated? Yes No No No
Coverage For Ponding Water? Yes No. Typically voids warranty No. Typically voids warranty No. Typically voids warranty
Coverage for Consequential Damages Yes No No No
Warranty Coverage Repair or replacement Repair only Repair only Repair only
Warranty Provided At No Extra Cost? Yes No No No

The World's Best Roof

Duro-Last has been the industry leader in producing custom-fabricated single-ply roofing systems, designing each roof to fit building specifications exactly, and manufacturing it under controlled factory conditions.

Duro-Last Roofing Systems Alabama

Advantages of Duro-Last®

For building owners and managers, Duro-Last's custom fabrication of single-ply roofing systems offers several advantages:

  • Studies of roof failures show that most problems occur because of installation errors, particularly at changes in plane on the roof, such as projections, curbs, drains, perimeters and abutting walls. Duro-Last prefabrication eliminates up to 85% of on-site, rooftop membrane seaming, greatly reducing the likelihood of installation errors and leak problems in the future.
  • Prefabricated roofing systems are easier to install throughout the year, even during adverse weather conditions. Installation time is reduced so the contractor can get on and off the job quickly. The relatively small amount of roof membrane seaming done in the field is completed with hot-air welding methods, which are virtually unaffected by cold or damp weather conditions.
  • Alabama Duro-Last Single-Ply Roofing for Manufacturing
  • Single-ply roofing prefabrication dramatically reduces waste, both during the manufacturing process and installation. The roofing contractor orders the exact amount of roof membrane necessary for roof coverage, rather than a collection of raw materials.
  • Prefabrication also appeals to engineers and architects who would like to address a particular structural or aesthetic design problem. Panel sizes, shapes and colors can be pre-planned and prefabricated to achieve desired visual results.
  • Finally, prefabrication allows the roofing contractor to take control of a construction operation in a highly unstable environment. Roofing contractors must plan their roofing projects carefully, and are rewarded with greater worker productivity, a higher-quality installation and more satisfied customers.

The Duro-Last Single-Ply Roof Membrane

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 single-ply membrane is available in white, gray, dark gray, tan, or terra cotta.

Alabama Duro-Last Single-Ply Roofing for hotels

Our flexible roof membrane is easily prefabricated into deck sheets up to 2,500 square feet in size, as well as custom-made parapet, stack, and curb flashings that eliminate most labor from critical roof areas – transitions and changes of plane. Prefabrication provides architects, specifiers, consultants, contractors, and building owners peace-of-mind regarding the watertight security of the roof installation.

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.

Duro-Last has been approved by Factory Mutual as a 1-60,1-75, 1-90, 1-95, 1-105, 1-135, 1-150, 1-165, 1-195, 1-210, 1-270, 1-435, and 1-495 roofing system. Duro-Last is also listed by Underwriters Laboratories as a Class A, B, & C approved material. Evaluation services ICBO and NES have merged to form ICC-ES, which has evaluated Duro-Last for the International Building Code (IBC). The Duro-Last roofing system has been approved by the IBC and by code agency MIAMI-DADE for use in their respective jurisdictions.

Duro-Last Single-Ply Roofing Codes

Duro-Last is proud to be a charter partner of the ENERGY STAR® Roof Products Program. The ENERGY STAR label indicates to building owners and managers that the Duro-Last white vinyl roof membrane can save them money on cooling costs due to its high reflectivity (reflects 88% of the sun's energy). Duro-Last is also a charter member of the Cool Roof Rating Council (CRRC) and a member of the United States Green Building Council (USGBC). Duro-Last participates in all major technical committees in the roofing industry, plus the American Society of Testing Materials (ASTM).


Let us help

Finishing Solutions would be happy to answer all your questions and provide you with a free estimate tailored for your building.   Call us at: (251) 580-6000   or use our confidential Contact Form.

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