Foundation Problems That Can Lead to Roof Sagging

Usually, roof sagging is caused by roofing problems like poor roof design or damaged shingles. However, it can also be a result of foundation failure and other issues. While it’s best to consult a roofing contractor to determine the culprit behind roof sagging, here, we give you an idea of the foundation-related causes of this problem.

Subsidence

If there are trees near your home, tree roots will likely spread directly under your foundation in search of moisture and nutrients in the soil. When this happens, the remaining soil particles become loose, resulting in the foundation shifting or moving over time. This movement can lead to roof sagging, so it’s best to call a professional right away to address the issue.

Incorrect Leveling

This can happen when your home has moved or shifted after it was constructed. Homes that are not level may eventually tilt but remain flat. This can cause your foundation to bow or develop a concave or convex shape, which may occur either in one part of your home — like your roof — or on your entire property. 

Damage

Foundation cracks and other damage happen if the ground is unstable or the slabs moved out of place. You’ll notice signs of minor foundation damage when your floor starts to tilt or slope. However, if your foundation has visible cracks wider than the bottom and resembling a “V” shape, it can lead to roof sagging. If this problem occurs in your foundation, consult a foundation or roof repair expert right away to prevent further damage to your home. 

Undercutting

When water erodes part of the soil supporting your home’s foundation, undercutting may occur. This problem can be caused by a nearby creek consuming the soil near your foundation or a damaged downspout unable to properly discharge water runoff. Over time, these issues can lead to a sinking foundation, which can also result in a sagging roof.

If you’re looking for a professional team for your roofing needs, you can rely on us at V. Nanfito Roofing & Siding. We have the expertise and experience to deliver top-notch roof replacement, repair and maintenance services. Schedule a consultation today by calling us at (203) 639-1634 or completing our online form.