4 Main Causes of Roof Sagging

Roof sagging is an abnormal roof condition that requires the expertise of a general construction company or a roofing professional. Older roofs are typically more susceptible to sagging since they have weakened structures and are already worn down.

Here are four main causes of roof sagging.

Leaks

Heavy rain and snow can cause severe damage to the roofing materials and structural supports. A minor water leak can affect a small section and then spread quickly to other parts of your roofing system. If left unattended, leaks can lead to significant water damage and wood rot. Once the wooden components of your roof developed rot, your roof could also start sagging. Call your roofer to repair leaks immediately.

Excessive Load

If you want to switch from asphalt shingles to slate tiles, your roofing and home remodeling contractor will need to make sure your roof can adequately support the weight of the new material. Slate tiles are heavier than asphalt shingles. If your roof is not built to withstand such a load, it might sag. In other cases, snow buildup can create the excess load that makes a roof sag.

Sometimes, roofers simply install new shingles over old ones — a method called re-roofing. If the contractor did not properly consider the condition of the entire roof, the new layer of shingles could weigh down the roof and cause sagging.

Problematic Roof Design

A flawed roof design or construction can lead to inadequate structures or inaccurately measured roofing components. Over time, these mistakes will catch up with your roof and result in sagging.

Foundation and Wall Issues

Damaged walls and foundations can also impact your roofing system. In this case, it’s best to also work with exterior home remodeling services to ensure adequate repairs to these parts of your home.

When you work with Timberland Exteriors, you can expect superior craftsmanship for your roofing project. Call us at 651-439-1760 (Maplewood) or (218) 849-6675 (Detroit Lakes). You can also fill out this contact form for a free consultation. We serve clients in Minneapolis, MN, and other nearby areas.