How To Fix A Sagging Flat Roof

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How to fix a sagging flat roof.

Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your. 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. Straighten out your old house s sagging roof and get rid of those cracks in the wall with these easy to follow steps. If a roof dips in between rafters or trusses it s probably because the sheathing is too thin for the span.

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. Determine the extent of damage. You can simply have the old sheathing replaced with better material when it s time for new roofing. You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.

Often the framing can be bolstered and beefed up internally but if the roofing material needs replacement anyway it may be best to tear off. A poorly designed gutter should be replaced to prevent water from pooling on the roof and the resulting water damage that causes sagging. If the roofing materials are not in good condition replace the shingles and flashing. Also inspect the metal or plywood gusset plates used where your wood meets on a truss.

Typically the roof sheathing is about three eighths of an inch thick. How to straighten sagging roof rafters. Determining the problem determine where the sag is in your roof in relation to your attic. Step 1 the first step is to the basement first.

Remedies for a sagging roof there are a number of remedies for traditional rafter style roof frames depending on the problem and its severity. And in a 30 year old house you tend to not have very much ventilation. Drill holes in angle iron. The sagging may be directly repaired with the installation of angled braces that shore up the rafters.