Rotten or saturated sheathing can also cause roof lines to sag.
Sagging garage roof repair.
Use your string line to determine how much the roof need to go up.
Try to rope in a friend or two as the beams can be heavy and try to plan your renovation project for a sunny weekend.
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.
This is the easiest problem to repair.
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.
That s how to fix a sagging roof.
A sagging garage roof repair isn t an overwhelming task but it is best to get the job done before it becomes a major roof replacement.
If the sagging roof is due to rotting or warping roof decking the repair will be much easier.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
In some cases roof sagging problems are not caused by framing issues.
Push up on the plywood until the foam is touching the underside of the roof decking.
A sagging garage roof a leaning garage or a garage in need of straightening can lead to other problems.
While some sagging roof causes can easily be handled by anyone who has a little diy knowledge some problems are a lot more complex and need the help of a professional to repair.
You can therefore easily identify whether your roof is sagging if you can see a swag curve or dip at its peak when you stand on the street.
You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.
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.
Safeway carpentry and doors has a great deal of experience in repairing and replacing garage roofs garage siding garage door openers garage doors and the concrete in and around a garage.