Fix Sagging Roof Line

It might be a simple fix that can be done by jacking up loose rafters adding struts or more economically by.

Fix sagging roof line.

If your roof is sagging under the weight of too many shingles ideally all the shingles should be removed and a new set installed. Using a flashlight inspect the rafters and decking in your attic especially in the areas where your roof is sagging. 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. You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.

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. If the sagging roof is due to rotting or warping roof decking the repair will be much easier. Then inspect the metal or plywood gusset plates. The easiest way to straighten rafters is to jack them into position.

That s how to fix a sagging roof. Next place your piece of plywood and styrofoam foam side up against the damaged roof decking. Unfortunately most roof structural defects don t respond well to homeowner fixes and require professional evaluation and repair. The first step is to the basement first.

Look for any kind of damage including rot cracks breaks and more. Typically they are lapped and then toe nailed together in its center so that the correct length can be achieved. This may be problematic in winter months but allowing the roof to continue to sag can lead to greater problems such as a cave in. Push up on the plywood until the foam is touching the underside of the roof decking.

Why is my roof sheathing sagging between the trusses. If the line does not continually follow the bottom of the beam and the bottom of the beam is below the line the beam is sagging. Fortunately there are different ways to jack up a sagging roof. However the trick to this process is to do it very slowly so it may take a few weeks before you get the rafter into a position where it is straight again.

Check the ceiling for sagging by attaching a string on one end of the beam and run it along the bottom edge of the beam. To learn more about roofs and attics see these other blog posts. A sagging roof line may original from the ceiling s horizontal rafters.