Roof Starting To Sag

Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.

Roof starting to sag.

Push up on the plywood until the foam is touching the underside of the roof decking. If your roof s structure is unsound because of leaks or termite damage you may start to see bowing in your roof. In some cases roof sagging problems are not caused by framing issues. If your roof is more than 30 years old rebuilding it will be the most effective approach to dealing with sagging.

A car headliner can also start sagging due to water or other factors. That s how to fix a sagging roof. Then the beam or roof may sag. Sagging or low spots in a flat roof may be due to undersized or weakened roof joists or problems with the buildup layers beneath the exposed roofing.

Cracked rafters and trusses can cause sagging. If a roof has been re roofed with heavier roofing material than the original roof was engineered for. Sagging rafters can lead to serious problems with the entire roofing system. The excessive heat melts the adhesive that binds the fabric to the board under the roof.

Problems with the roof itself aren t the only reason a roof might sag. Although heat is not the only reason for a sagging roof lining it is a considerable factor. Why roofs sag as mentioned roofs sag because there s too much weight or load for the existing structure. If you re not quick enough you may find that the rafter starts to sag again and you will have to start from the.

When the framing of the roof is put together quite frequently two of the ceiling rafters will be fixed together as this will create a much longer span. On average a roof lasts between 15 to 30 years depending on the design the materials used and your climate. This is the easiest problem to repair. Additionally if your roofer has used material that is much heavier than your previous roof it can sag for the same reason.

Rotten or saturated sheathing can also cause roof lines to sag. A sagging roof line may original from the ceiling s horizontal rafters. After that use a piece of lumbar strapping to keep the plywood in place until you can get a roofing repair expert to fix it. I e the original roof was a light wood shingle roof and the new replacement roof is a concrete tile roof weighing 5 or 10 times more than the original roof.