Sagging Roof Ridge Repair

Sagging rafters can lead to serious problems with the entire roofing system.

Sagging roof ridge repair.

On average a roof lasts between 15 to 30 years depending on the design the materials used and your climate. This article series describes explains the directions of forces in roof structures illustrating downwards force horizontal thrust and the causes of rafter sags rafters that disconnect from the ridge or top plate and why a sagging roof pushes the building walls outwards at the wall top. If your roof is more than 30 years old rebuilding it will be the most effective approach to dealing with sagging. Problems with the roof itself aren t the only reason a roof might sag.

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. Next place your piece of plywood and styrofoam foam side up against the damaged roof decking. How to fix sagging roof trusses or rafters. Fixing a sagging roof as soon as you spot it is very important otherwise you could find that the problem will only worsen over time and in the end you may need to have the entire roof replaced which could be extremely costly not to mention a lot of hassle.

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. Use your string line to determine how much the roof need to go up. You ll need a steel l channel to get your rafter or truss back into shape. If your rafters are still sagging a bit and it is causing your roof to dish out a little in the center of the roof sides add a 2x4 that goes all the way across the rafters in the center of the length of the rafters.

Push up on the plywood until the foam is touching the underside of the roof decking. The ridge board provides a stable nailing surface and adds some lateral stability whereas a ridge beam is a structural support member that eliminates the need for a connection between the end walls to avoid spread. A ridge board or ridge beam at the peak of the roof is also an important component. In many cases you ll need to fix sagging trusses or rafters to repair your roof.