Quick definition
Ponding water is water that remains on a low-slope roof after rainfall because drainage is slow, blocked, or inadequate.
Ponding can accelerate membrane aging, stress seams, hide debris, increase structural load, and indicate drainage design or maintenance problems.
Drainage Failure
Documentation
What it means for you
Why does ponding water matter?
Ponding can accelerate membrane aging, stress seams, hide debris, increase structural load, and indicate drainage design or maintenance problems.
Sources
- PRE Editorial Reference Standard. Professional Roofing Encyclopedia.
Tier 2 authority · industry
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