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Abstract
Although blisters are sometimes not aesthetically pleasing, they should not be removed and/or repaired unless it appears that their presence will adversely affect the water tightness of the sprayed polyurethane foam system. This also applies to blisters in built-up and single ply membrane systems. The unnecessary repair of blisters in a sprayed polyurethane foam roofing system can lead to leaks and premature roof problems.
Although blisters are sometimes not aesthetically pleasing, they should not be removed and/or repaired unless it appears that their presence will adversely affect the water tightness of the sprayed polyurethane foam system. This also applies to blisters in built-up and single ply membrane systems. The unnecessary repair of blisters in a sprayed polyurethane foam roofing system can lead to leaks and premature roof problems.
Date
1/1989
1/1989
Author(s)
SPI
SPI
Page(s)
1-4
1-4
Keyword(s)
blister; water; membrane
blister; water; membrane