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Duro-Last®

Environmentally Friendly Commercial Roofing at its Finest

Duro-Last® boasts over 30 years of reliability and durability in the commercial roofing industry. Their proprietary roofing systems are expected to last as long as 35 – 40 years, decades longer than the majority of other roofing systems. The Duro-Last® formula has remained unchanged since 1978, featuring impressive stats:

  • Duro-Last® Roofing System is a strong, reinforced thermoplastic single-ply membrane, PVC or CPA, perfect for commercial and industrial buildings with flat or low-sloped roofs.
  • It can be the base roof for Solar photovoltaic (PV) panels or green roofs.
  • Materials are leak-proof, durable, long-lasting, and recyclable.
  • Energy-efficient material design makes it the highest ENERGY STAR rated roof, retaining 86% reflectivity even after three years.
  • A Duro-Last® Roof is custom-made, “precision fabricated” and resistant to fire, chemicals, grease, high winds, and punctures.
  • It is virtually maintenance-free, often times outlasting the building owners’ expectations by 5 – 10 years or longer.
Learn More About Duro-Last

Compare the Facts:

Company Duro-Last A B C
Membrane Type PVC TPO EPDM Modified Bitumen
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 prefabricated into panels up to 2,500 sq.ft. Roll goods only; 500-1000 sq. ft. coverage per typical roll Roll goods only; 1000 sq. ft. coverage per typical roll Roll goods only; 100 sq. ft. coverage per typical roll
Custom Prefabricated Curb & Stack Flashings? Yes Yes No No
Custom Prefabricated Scuppers & Parapets? Yes No No No
All Flashing Material Reinforced? Yes No No No
Flashing Method All heat-welded Adhesive or heat-welded Adhesive Hot mopped, cement or torch-applied
Warranty Coverage Repair or replacement Repair only Repair only Repair only
Warranty Issues at No Additional Cost?* Yes No No No
Warranty Coverage for Consequential Damages?* Yes No No No
*15 year warranty

Duro-Last® – The Environmentally Friendly Choice

Duro-Last® has the highest ENERGY STAR rated roofing system in the commercial roofing industry. Reflectivity is 87.6% in the first year and remains at 86% even after three years, keeping more heat from being absorbed by the building and its machinery. Dark, heat-absorbing roofs are at most 26% solar reflective. Cooler, white roofing systems which reflect over 85% of the sun’s heat can dramatically reduce the energy costs associated with the heating and cooling the building.

Duro-Last® Roofing Systems create a low carbon foot print. It can be installed on top of 90% of existing roofing systems, eliminating the removal of millions of tons of roofing material waste that would end up in our landfills. Duro-Last® is a co-polymer alloy (CPA), which is 100% recyclable at the plant, allowing plastic scraps to be reprocessed and recycled repeatedly. Post-consumer Duro-Last® materials can be recycled and reused in a variety of ways including walkway pads on roofs and around ice rinks, liners for landfills, carpeting, flooring, speed bumps, and asphalt road patching material.

Duro-Last Roofing, Inc. is a member of the U.S. Green Building Council which created Leadership in Energy and Environmental Design (LEED)-a rating system. LEED certified contractors, developers and building owners use environmentally friendly products and designs. They are also members of the Green Globe.

Long-Term Savings with Duro-Last® 

A Duro-Last® Roofing System is cost competitive with all other commercial roofing systems. It is important to note from the cost comparison that the majority of the cost comes from high-quality materials, not the labor. Lesser quality (lower material cost) roofing systems often come with higher roofing installation (labor) costs.

Statistically, with 50% of roof failure caused by poor installation (see graph), paying excessively for a roofing installation (labor costs) is typically money not well spent. Duro-Last® Roofing Systems have stringent quality-control standards. Building the roofing system with 85% of the seams specially made at the factory, significantly reduces the labor investment as well as potential failures created on the project site.

Duro-Last® claims the best warranty in the roofing industry: “15 Year No Dollar Limit”.This warranty is transferable and covers labor, materials, consequential damage, and “ponding” water. The “72-hour underwater warranty limitation”, common in the roofing industry, does not apply. Duro-Last® has no underwater time limitation in their extensive warranty.

The Best Warranty in the Business

No one stands behind their product line like we do. Four Seasons offers a number of Duro-Last warranties that demonstrate our trust in the product – you can choose a 15 year No Dollar Limit (NDL) repair and replacement warranty that covers all consequential damages from a roof leak caused by material or installation. This covers traditional repairs, but also damages to computers, furniture, inventory, and more.

When we say Duro-Last is the best, we are fully ready to stand behind that statement. Connect with us today to optimize your coverage.

Contact Us

9541 75th St. N.
Stillwater, MN 55082
651-414-9682

License Number
MN: BC-384179
WI: DC-112001192

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