Ponding Water on a Flat Roof: How to Stop Leaks for Good
Rhys Rose • October 30, 2025
Flat Roof Ponding? Causes, Fixes & Long-Life Coating Options in Lima, OH
Ponding water ruins flat roofs. See the true causes, repair options, and when a seamless roof coating or sealer can add years of leak-free life.
Water that sits more than 48 hours on a flat/low-slope roof accelerates membrane failure, splits seams, and invites leaks.
Root causes
- Compressed/settled insulation creating low spots
- Clogged internal drains or scuppers
- Badly placed HVAC curbs or penetrations
- Aged membranes with alligatoring and open seams
Durable solutions
- Correct drainage: clear/resize drains; add crickets/tapered insulation
- Reinforce seams & penetrations: localized Roof Repair
- Add a seamless shield: consider a fluid-applied Roof Coating or Roof Sealer Application to bridge hairline cracks, improve reflectivity, and extend service life
Start with a diagnostic Roof Inspection. In storm seasons, keep Emergency Roofing handy for rapid response.
flat roof ponding, flat roof leaks, roof coating Lima, roof sealer application Ohio, EPDM TPO coating
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