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.
How to fix a sagging garage roof ridge.
In some cases roof sagging problems are not caused by framing issues.
Sagging rafters can lead to serious problems with the entire roofing system.
If that s what you re dealing with regarding your home take these steps to ensure your rafter or truss gets fixed properly.
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.
If you have just stepped outside your house and realized that your roof is no longer straight this could signal a problem.
The cause of a sagging roof is straightforward in theory.
Solutions can range from simple to downright ugly for your wallet and unless you re comfortable with span tables advanced carpentry and working at heights fixing a sagging roof is almost always time to call a pro.
You ll need a steel l channel to get your rafter or truss back into shape.
Push up on the plywood until the foam is touching the underside of the roof decking.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
Rotten or saturated sheathing can also cause roof lines to sag.
In many cases you ll need to fix sagging trusses or rafters to repair your roof.
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.
Use your string line to determine how much the roof need to go up.
That s how to fix a sagging roof.
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.