Commercial Flat Roof Leak Repair in Chicago: Sealing Openings Around Roof Waste Stack to Prevent Water Intrusion

Openings or cracks around the base of a roof waste stack or pipe can become a serious source of leaks on commercial flat roofs. Over time, exposure to Chicago’s harsh weather — from intense sun to freezing temperatures — can cause roofing materials to expand, contract, and eventually separate. When this happens, water can seep through these small gaps, leading to interior leaks, damaged insulation, and even structural deterioration if left unaddressed.

For this Chicago commercial roofing repair, Anchor Point Roofing will carefully remove any loose or damaged material around the waste stack and install a new modified bitumen membrane patch that fully seals the area. Once the new patch is secured and watertight, we’ll apply Lucas 6000, a durable elastomeric coating that provides long-term waterproofing and UV protection for smooth modified bitumen surfaces.

This repair restores the roof’s integrity and helps prevent future leaks caused by aging or weather-related movement. Anchor Point Roofing remains committed to delivering reliable and lasting commercial roofing solutions across Chicago, keeping every flat roof protected and performing at its best.

Location: Chicago, IL