Commercial Roof Replacement Services

Commercial Re-Roofing Contractor

Commercial Re-Roofing Contractor

There is a big cost difference between replacement and re-roofing over your existing roofing system. If the existing roofing system is wet or you have 2 layers of roofing or more we must remove your roofing system. Code then requires us to install a minimum R-20 insulation system with taper if the roof doesn't have a slope in it. It is always preferable to remove the existing system to examine the roof deck (substrate). We understand that economically this isn't always feasible, therefore we offer various overlay systems depending on your financial situation.

Replacement Features

  • International building code (your local code) compliant advise
  • Energy efficient designs
  • Condensation mitigation designs

Your Class A Roofing Team 40 Years of Proven Performance

Duro-Last® Roofing has been manufacturing single-ply membrane for Oregon flat and low sloped roofs since 1978. Duro-Last® Roofing started in Saginaw, Michigan. Due to our rapid growth a manufacturing plant was needed in the west coast. Over 30 years ago Duro-Last® opened in Grants Pass, Oregon. Since 1987 we have been manufacturing our custom fabricated roofing and edge metal right here in Oregon. Class A Roofing Consultants, located in Portland, are our independent sales representatives for Oregon. We have over 70 highly qualified contractors installing roofs in Portland, Eugene, Salem, Roseburg, Medford, Brookings, Coos Bay, Tillamook, Astoria, Bend, Hood River, The Dalles, Pendleton and every city in between.  Please call us today to receive a free roofing estimate from an authorized roofing contractor.