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Business Details
48 Years
experience
Custom-Fabricated Roofing Systems for Commercial Buildings
DURO Last Roofing specializes in building roofs and relationships, offering the widest range of thermoplastic single-ply roofing solutions since 1978. Our custom-fabricated systems, including PVC, KEE, and TPO membranes, are designed to meet diverse project requirements while prioritizing durability, energy efficiency, and sustainability. With over four decades of proven performance and billions of square feet of membrane installed globally, we stand by every square foot of our work through direct partnerships with authorized contractors. Our proprietary manufacturing processes, including factory-welded seams and custom-fabricated accessories, reduce installation time and enhance leak protection.

Backed by industry-leading warranties and a network of 80+ technical representatives, we deliver tailored solutions for commercial buildings, ensuring long-term performance and client satisfaction. Our commitment to innovation extends to sustainability initiatives like our Recycle Your Roof program, which repurposes old membranes into new products. Headquartered in Saginaw, Michigan, we operate eight manufacturing facilities across the U.S. and maintain a vertically integrated supply chain to guarantee quality control from production to installation.
Services
PVC Roofing TPO Roofing Metal Retrofit Custom Fabrication Roof Recycling Warranty Programs Technical Support Energy Efficiency Sustainability Solutions Installation Training
Details
  • Year established: 1978
Highlights and features
  • We offer custom-fabricated roofing systems with factory-welded seams for reduced leaks.
  • Our 40+ years of proven performance include 15-30 year warranties with consequential damage coverage.
  • We maintain 80+ technical representatives for nationwide installation support and inspections.
  • Our proprietary PVC formulation provides superior UV resistance and fire protection.
  • We pioneered vertical integration to control quality across all roofing system components.
Associations and certifications
  • ISO 9001
  • UL
  • FM Approved
  • NSF/ANSI 347 Platinum
What people say
Long-lasting performance Excellent warranties Energy savings Technical support Custom solutions
Services
PVC Roofing Membrane
DURO Last Roofing's custom-fabricated PVC membranes offer superior durability and energy efficiency for commercial buildings. Our proprietary formulation provides exceptional UV resistance, fire protection, and chemical resistance while maintaining flexibility in extreme weather conditions. Factory-welded seams reduce on-site labor and leak risks, with options for mechanical attachment, adhesion, or induction welding across multiple thicknesses.
Metal Retrofit System
Our metal retrofit solutions extend roof lifespan by installing custom membranes directly over existing metal decks without tear-off. This cost-effective approach eliminates seam and fastener issues while improving thermal performance through added insulation layers. Compatible with steel, concrete, or wood substrates, systems include Duro-Guard insulation and pre-cut flute fillers for seamless integration.
Custom Fabrication
DURO Last Roofing pioneered factory-controlled custom fabrication that completes up to 85% of seams before delivery. This process reduces rooftop labor by 40-60% while enhancing quality control. We manufacture complete systems including membranes, flashings, and edge metal to precise specifications, minimizing waste and accelerating installation timelines for complex commercial projects.
Warranty Programs
Our industry-leading warranties include 15-30 year coverage with options for consequential damage, hail, and high wind protection. As the first manufacturer to cover consequential damages on commercial roofs, we provide material and labor guarantees backed by rigorous quality assurance inspections and technical support throughout the warranty period.
Sustainability Solutions
Duro-Life 600 systems combine 50-year durability with DuPont XPS insulation for maximum energy efficiency. Our Recycle Your Roof program repurposes old membranes into walkway pads and flooring materials. White PVC options reduce cooling costs through 85% solar reflectivity while maintaining full recyclability at end-of-life.
People
John R Burt
Founder
John R Burt established DURO Last Roofing in 1978 with a vision for vertically integrated roofing solutions. His leadership created the industry's first custom-fabricated PVC membrane system and laid the foundation for sustainability initiatives that continue shaping the company's approach to this day.
Questions
What makes Duro-Last roofing systems unique?
Our custom-fabricated membranes with factory-welded seams reduce on-site labor by 40-60% while enhancing leak protection. This proprietary process, combined with nationwide technical support, sets us apart from competitors.
How do Duro-Last warranties compare to industry standards?
We offer 15-30 year warranties with optional consequential damage coverage - the first in the industry to include this protection. Our warranties cover both material and labor with hail and wind damage options.
Can Duro-Last membranes be installed over existing roofs?
Yes, our PVC and TPO systems can be installed over most existing metal roofs without tear-off using our metal retrofit system, which includes specialized insulation and flute-filling components.
What sustainability features do Duro-Last products offer?
Our white membranes reduce cooling costs through 85% solar reflectivity. The Recycle Your Roof program repurposes old PVC into new products, and Duro-Life 600 systems combine 50-year durability with enhanced insulation performance.
How does Duro-Last support contractors?
We provide exclusive training programs, 80+ technical representatives for on-site support, and quality assurance inspections. Authorized contractors gain access to engineering services and custom fabrication expertise.
What maintenance does a Duro-Last roof require?
Annual inspections and bi-annual cleanings are recommended. Our membranes resist biological growth, but we offer specialized cleaning solutions. Warranty holders receive inspection reminders and maintenance checklists.
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