jgbnm
10-07-2010, 07:06 PM
Hi,
Have an adobe style house with a flat roof. Four separate elevations, so four separate sections of roof. Had a spray foam roof put on because the house is older, with lousy insulation. Three sections are ok, but the 4th is having pretty major problems. Foam was applied over an underlying modified bitumen roof.
At some point after the roof was complete, I had a leak. Roofer's employee repaired a separation against a higher elevation wall. Foam was mostly applied against the underlying roof which went up the wall 6" or so. No more leaks but the separation has been expanding slowly ever since. At the guy's last visit, he threw a bunch of caulk in the separation and said he'd be back to do a more thorough repair. Never came back. Now I have a separation of about 1-2.5" along about 30 feet of wall. That same section of roof is showing signs of lesser separation on two other edges. Looks like the underlying roofing is being pulled away from the wall, though in other sections the foam is pulling away from the roofing.
Roofer is blaming the underlying roofing and says it's not a warranty issue. I'm not convinced and wonder is it's an application problem. It was quite windy that day (if that matters). Their equipment looked filthy and their compressor barely ran. Could have been a problem with too thick of a foam application per pass? Off-ratio mix? Partially clogged nozzle?
I'll pay for the repairs if it's a substrate problem, but for a variety of reasons, I don't trust what he's saying... Any help would be appreciated.
Thanks,
Jon
Have an adobe style house with a flat roof. Four separate elevations, so four separate sections of roof. Had a spray foam roof put on because the house is older, with lousy insulation. Three sections are ok, but the 4th is having pretty major problems. Foam was applied over an underlying modified bitumen roof.
At some point after the roof was complete, I had a leak. Roofer's employee repaired a separation against a higher elevation wall. Foam was mostly applied against the underlying roof which went up the wall 6" or so. No more leaks but the separation has been expanding slowly ever since. At the guy's last visit, he threw a bunch of caulk in the separation and said he'd be back to do a more thorough repair. Never came back. Now I have a separation of about 1-2.5" along about 30 feet of wall. That same section of roof is showing signs of lesser separation on two other edges. Looks like the underlying roofing is being pulled away from the wall, though in other sections the foam is pulling away from the roofing.
Roofer is blaming the underlying roofing and says it's not a warranty issue. I'm not convinced and wonder is it's an application problem. It was quite windy that day (if that matters). Their equipment looked filthy and their compressor barely ran. Could have been a problem with too thick of a foam application per pass? Off-ratio mix? Partially clogged nozzle?
I'll pay for the repairs if it's a substrate problem, but for a variety of reasons, I don't trust what he's saying... Any help would be appreciated.
Thanks,
Jon