How To Fix A Sagging Flat Roof

Also inspect the metal or plywood gusset plates used where your wood meets on a truss.

How to fix a sagging flat roof.

Step 1 the first step is to the basement first. And in a 30 year old house you tend to not have very much ventilation. So what happens with those elements is that you get more sagging and delamination of the roof sheathing. Straighten out your old house s sagging roof and get rid of those cracks in the wall with these easy to follow steps.

If the sagging roof is due to rotting or warping roof decking the repair will be much easier. If a roof dips in between rafters or trusses it s probably because the sheathing is too thin for the span. Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your. You may find that.

How to straighten sagging roof rafters. The first step is to find out how many rafters are sagging and if anything else is damaged. You can simply have the old sheathing replaced with better material when it s time for new roofing. 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.

Remedies for a sagging roof there are a number of remedies for traditional rafter style roof frames depending on the problem and its severity. Drill holes in angle iron. The sagging may be directly repaired with the installation of angled braces that shore up the rafters. Determine the extent of damage.

Typically the roof sheathing is about three eighths of an inch thick. Determining the problem determine where the sag is in your roof in relation to your attic. 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. You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.