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.
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 |
CPA Drawbacks |
- 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
|
- material & products
are expensive
- installation over concrete
is difficult
- very slippery when wet
|
