Ponding water destroys a flat roof by adding constant weight, accelerating membrane wear from sun and heat, and pushing moisture into seams and penetrations; drainage is fixed by restoring slope and giving water a clear way off the roof. The most common causes are inadequate pitch and obstructed drains or scuppers, often worsened by settled insulation or a sagging deck. A maintenance plan with scheduled inspections helps prevent clogs and early membrane damage. Our team corrects drainage on TPO and other flat systems throughout the Clawson area using standard, durable methods. If water still stands or leaks appear, move from patching to a drainage correction rather than another spot repair.
When an inspection shows trapped water, typical fixes include:
- Clear and resize scuppers and drains; add strainers and proper leaders.
- Install tapered insulation crickets and saddles to push water to drains.
- Add or relocate drains/scuppers where slope is missing.
- Rebuild low spots, replace wet insulation, and reset curb/flashing details.
If ponding lasts more than a day or two, or you see deck deflection or active leaks, schedule service now to prevent structural and interior damage.
Updated: 2026-05-07
Need help in Clawson, MI? Call (586) 300-4163 or book online at https://kanga-roof.com/schedule-inspection-now/. “We had Four Seasons Kanga Roof come out today to replace our flat roof that had some damage and wet insulation… We are very happy with our new roof and the work done.” — Kinga W.