Sagging Roof Rafters Repair

The roof rafters were bowed inwards on my home.

Sagging roof rafters repair.

You may find that several are in need of straightening and that some of the sheathing must be replaced. Force open the cracked end of a sagging rafter with a wood chisel. After measuring the damaged area between your roof trusses or rafters cut a piece of 1 2 plywood that will cover the area. Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging.

If the roof sags between the rafters or trusses the most likely cause is sheathing that s too thin for the area it covers. Glue a piece of 1 rigid styrofoam to the plywood. Fixing a truss or rafter. Problems with and repairs to a sagging roof should be evaluated by professionals.

Also inspect the metal or plywood gusset plates used where your wood meets on a truss look for damage that includes cracks rot breaks and any other impairment. I did not really understand why until hurricane gustav came through and tore up 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. The first step is to find out how many rafters are sagging and if anything else is damaged.

A sagging roof line may original from the ceiling s horizontal rafters. Typically they are lapped and then toe nailed together in its center so that the correct length can be achieved. It might be a simple fix that can be done by jacking up loose rafters adding struts or more economically by. Place a fascia board up under the roof sheathing and nail it with a hammer across the ends of the rafters to strengthen them.

Roof rafter decking sagging. Driving nails into it might make it worse place the plywood and styrofoam side up against the damaged roof decking. This article describes a diy repair project using a site built spreader to straighten sagged roof rafters and decking. When considering what to do about sags in a roof start by noticing if the sag is in sheathing between rafters page top photo0 or sagging along the length of the rafters.

Spread polyurethane glue into the crack with a stiff bristle brush. However it is important to fix the rafters before doing any other work to the roof.