Common Issues with Leaks on Shingle Roofs: Incorrect Membrane and Shingles for Low-Pitch Roofs

Leaks on shingle roofs, especially those on low-pitch roofs (3/12 pitch or lower), can be a significant issue when the wrong materials are used for installation. A common problem occurs when shingles, designed for steeper pitched roofs, are applied to low-slope roofs. Shingles do not perform well on roofs with a pitch lower than 4/12, as they are prone to water penetration, especially when rain or snow doesn't easily drain off. This can result in leaks, damage to the underlying structure, and the need for costly repairs. If a low-pitch roof has shingles instead of a proper low-slope membrane, the roof is highly susceptible to water pooling and leaking over time.

At Anchor Point Roofing, we tackle this issue head-on to ensure long-term protection for your home. For roofs with this problem, we remove the existing shingles, boot, and box vents, as they no longer serve their intended purpose. Our team installs a new gravel stop along the rakes of the roof to help manage water flow and prevent further damage. We then replace the old boots with new lead boots and install new breather vents to ensure proper ventilation for the roof structure. Finally, we provide and install a new bitumen base sheet across the entire area, which serves as the foundation for the low-slope membrane.

To complete the job, we install a modified bitumen cap sheet with granules, ensuring it matches the existing shingle color as closely as possible. This solution not only addresses the problem of leaks but also adds durability and enhances the overall appearance of the roof. Anchor Point Roofing specializes in roof repairs, and we are proud to offer reliable services to homeowners in Chicago and beyond. Let us help protect your home with professional roofing solutions that are built to last.

Location: Chicago, IL