Repairing A Sagging Dip In Roof

Spotting a sagging area in your roof is always worrying.

Repairing a sagging dip in roof.

Roof leak leakage of the roofing that has caused rot and partial collapse of the sheathing in the area of the leak is the 1 cause of a roof dip. While some sagging roof causes can easily be handled by anyone who has a little diy knowledge some problems are a lot more complex and need the help of a professional to repair. You can simply have the old sheathing replaced with better material when it s time for new roofing. Sagging rafters can lead to serious problems with the entire roofing system.

It might be something. Weakened sheathing rotting joists and sagging insulation are some possible causes. Roof lines should be arrow straight. Use your string line to determine how much the roof need to go up.

Remedies for a sagging roof there are a number of remedies for traditional rafter style roof frames depending on the problem and its. The most important step when fixing dips in a flat roof is to determine the cause of the problem. If you can see a dip curve or swag on the peak when standing in the street your roof has a problem. If your rafters are still sagging a bit and it is causing your roof to dish out a little in the center of the roof sides add a 2x4 that goes all the way across the rafters in the center of the length of the rafters.

While a little sagging doesn t necessarily mean your roof is in imminent danger of collapse it does mean you need to act soon to save the structure. What causes a sagging roof line. It often occurs next to a roof penetration such as a chimney or dormer or at the edge of the roof as in the photo above and is easily verified by checking the area in the attic. If a roof dips in between rafters or trusses it s probably because the sheathing is too thin for the span.

Often a saggy roof can be repaired and reinforced.