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Duro-Last Flat Roofing Delivers Long-Term Value

Perfect for flat, low-sloped, new, or retrofit applications on commercial & residential buildings in Medicine Hat.

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"Ram Exteriors recently installed a new Duro-Last roof. They did a fantastic job—neat, professional, meticulous workmanship, prompt, and happy employees." — Philip B.

It's durability, energy efficiency and exceptional warranty make Duro-Last products a smart choice for any applicable home or business. RAM Exteriors has the knowledge and expertise to get the job done right.

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About Duro-Last Products: Vinyl Roof Membranes Built for Strength & Durability

The Duro-Last vinyl roof membrane is a proprietary thermoplastic formulation consisting of PVC resins, plasticizers, stabilizers, biocides, flame retardants, and U.V. absorbents. The membrane is available in white, tan, gray, or dark gray. The flat roof product can be installed throughout the year in all kinds of weather and climates.

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.

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Duro-Last Coolzone Logo
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Duro-Last Benefits

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

  • Proven Track Record

    Since 1978, Duro-Last Roofing, Inc. has had over 1 billion square feet of roofing installed throughout North America.

    Many of Duro-Last’s original roofs still remain intact and continue to perform exceptionally well.

  • Pre-Fabricated for Precision

    Each Duro-Last project is prefabricated to fit every roof with precision. By performing 80-85% of membrane seaming in their controlled factory environment, Duro-Last reduces the potential for rooftop installation errors and leaks.

  • 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.

  • Backed by the industry's best warranty

    Duro-Last is so confident in their roofing systems that they protect installations with the best warranties in the industry.

    Their standard, comprehensive 15-year No Dollar Limit warranty is transferable, has no exclusions for ponding water, and provides coverage against consequential damages that result from defects in material and/or installation workmanship.

  • 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.

  • Durable

    With a Duro-Last roofing system, high winds, snow, and other severe weather are not detrimental. 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.

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Professional Roof Installation

Our crews in Medicine Hat 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.

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Accredited through the Better Business Bureau

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Financing options available

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Insured, bonded and fully covered by WCB

How Duro-Last Compares to Other Flat Roof Systems

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

The Most Comprehensive Warranty in the Industry

Duro-Last roofing systems have exceptional warranties, making them an excellent long-term investment. Give us a call to learn more about what’s covered.

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A Duro-Last seam

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!

Duro-Last Is Only the Second Manufacturer to Obtain This Level

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.

A Duro-Last roof

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.

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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.

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Duro-Last Master Contractor Award

RAM Exteriors: Winners of 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.

It's the "Best of the Best" award, given because of our commitment to quality, detail, and hard work!

We’re a Family-Owned Business With a Passion for Excellent Service

RAM Exteriors is a full service interior and exterior contractor and we’ve been serving Medicine Hat and Area since 2006. We are a family-owned business with a commitment to quality and a passion for providing excellent service to all our clients.

We offer a full range of services including flat top roofing, shingle roofing, vinyl and wood siding, windows and doors, eavestroughs, soffit, fascia, cladding, and renovations.