Roof Sagging Between Rafters

If so i bet the installers used 1 2 in.

Roof sagging between rafters.

Here s some examples of how it can happen. If the framing is sound and problems are not found elsewhere but the roof still sags the problem might have originated because of poor installation of the plywood sheathing or shingles. There are no cracks or anything in. Fixing a truss or rafter.

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. If your ceiling drywall is sagging between joists sometimes called pillowing it s probably on the top floor and attached to the roof trusses. Roof sheathing sags for the same reason any component of a home that spans between two bearing points sags. Picture the vertical finishing edge that connects to the ends of rafters trusses and the area where the gutter attaches to the roof.

Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging. When sagging gets too severe it can lead to roof collapse and once the roof goes the house won t last for long. Sagging sheathing between rafters may be due to rot delamination use of fiberboard or other materials that may not perform well over the life of a home or due use of too thin plywood roof decking to start with. Sepecifically its sagging towards the lower 1 3 of the roof.

Sagging rafters can lead to serious problems with the entire roofing system. Its not just sagging between rafters. Because it was structurally inadequate when installed or has deteriorated over time. The fix here is to replace the thin sheathing with thicker sturdier sheathing.

If the roof sags between the rafters or trusses the most likely cause is sheathing that s too thin for the area it covers. The ceiling below the sagging portion is a vaulted ceiling. I took a pic but the sagging it not as noticeable in the pic as it is in person. The primary function of fascia is to protect by acting as a layer between the edge of the roof and the elements of the outdoors especially water.

Sagging rafters are a sign that a house is in serious trouble. If you notice that there is a visible dip in your roof chances are you have a problem with one or several rafters and you may soon be facing more issues like water leaks bowed out walls or your roof caving in on you. Prevent this unfortunate series of events by bracing your rafters to make them sturdy and resistant to snow loads and wind.