Flat and low-slope roofs are common on additions, patios, and commercial buildings. Their biggest enemy is ponding — water that sits instead of draining. Left alone, it leads to leaks and structural strain. Here is what causes it and how it is fixed.
Why Water Ponds on Flat Roofs
Ponding almost always comes down to drainage.
Poor Drainage or Slope
Clogged drains, sagging spots, or too little slope let water collect. Over time, standing water breaks down the roof surface and finds its way in.
The Damage It Causes
Ponding accelerates wear, invites leaks, and adds weight to the structure — problems that often show up as the stains in our leak warning signs guide.
Repairing and Preventing Ponding
Repair means clearing drains, correcting low spots, and restoring the roof surface. Regular inspections catch ponding early, before it causes a leak.
Frequently Asked Questions
Why does water pond on my flat roof? Usually because of clogged drains, sagging low spots, or insufficient slope that prevents water from draining.
Is standing water on a roof bad? Yes. It accelerates wear, causes leaks, and adds weight that can strain the structure over time.
Can ponding water be fixed? Yes. Clearing drains, correcting low spots, and restoring the surface resolve most ponding problems.
Standing water on your flat roof? Call Cannon Roofing at (940) 627-1045 or request a free quote. Serving Wise County since 1994.