Commercial CPA Roofs Minneapolis – St. Paul Co-Polymer Alloy Roofing Contractor -Serving the Greater Twin Cities Area

Co-Polymer Alloy Roofs (CPA)

Co-Polymer Alloy (CPA) roofing is comprised of a single layer of white, reinforced membrane, 40-50 mils thick, typically mechanically attached to the building with plates and screws. No gravel is installed over the membrane, which provides 86% reflectivity of UV radiation.

House with damaged roof from a bad storm

The seams of the CPA roof system are welded together, not glued, providing a monolithic membrane upon completion. Its flexibility in re-roofing applications without tearing off the existing roof system has made it a popular choice with building owners.

CPA Benefits

  • High puncture resistance for a single ply
  • Extremely lightweight
  • 86% UV reflectivity—Energy Star rated
  • Significant labor savings in not tearing off old roof
  • Resistant to chemicals and animal fats
  • No exclusion for accumulating water
  • Warranties do not exclude consequential damages
  • Odor-free insulation

CPA Drawbacks

  • Material & products are expensive
  • Installation over concrete is difficult
  • Very slippery when wet

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