5 Causes Of Pooling Water On A Low Slope Roof
A low slope residential roof has a gradual pitch compared to those styles with a steep peak. There should still be sufficient slope for water to drain off the roof following rain or snowmelt, though. If water collects and pools on the roof, you likely have one of the following problems.
1. Cupped Shingles
Cupping is a type of shingle decay. As the material breaks down and moisture soaks into the shingle, the edges begin to curl upward.