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How to Fix Ponding Water on Your Commercial Flat Roof in Chicago

June 3, 2025

How to Fix Ponding Water on Your Commercial Flat Roof in Chicago

Ponding Water on Commercial Flat Roofs in Chicago: What You Need to Know

Ponding water is when water collects and stands on a flat roof for an extended period instead of draining properly. On commercial flat roofs, especially in Chicago’s climate, ponding water can cause serious problems if left untreated. It can lead to roof leaks, membrane damage, structural issues, and shorten the lifespan of your commercial roofing system.

At Anchor Point Roofing, we specialize in commercial roofing and roof repairs throughout Chicago, and ponding water is one of the common issues we address. When we inspect your roof, we carefully examine the affected areas to identify low spots where water pools.

To fix ponding water, our process includes removing the existing membrane in the problem area, then installing new tapered insulation or a plywood assembly to create proper slope and drainage. After that, we install a new membrane that matches your existing commercial roofing—whether it’s smooth modified bitumen, granulated modified bitumen, or TPO.

For smooth modified bitumen roofs, we also apply an aluminum coating to protect the surface and extend the roof’s life.

If you’re dealing with ponding water on your commercial flat roof in Chicago, don’t wait until it causes bigger issues. Contact Anchor Point Roofing for a thorough inspection and professional commercial roofing repair to keep your roof watertight and durable.

Location: Chicago, IL

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Let Us Help You Get Back On Your Rooftop. Contact Our Chicago Roofers Today!