Fixing a sagging roof by bolstering the beams bolstering the beams of your roof is another solution to repairing a sagging roof however it is often something that requires assistance from another able bodied person since beams can be extremely heavy.
Fix sagging roof garage.
This is the easiest problem to repair.
Step 4 strengthen the beams.
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.
Check the ceiling for sagging by attaching a string on one end of the beam and run it along the bottom edge of the beam.
Next place your piece of plywood and styrofoam foam side up against the damaged roof decking.
Gradually work along all the beams pushing the roof up as you go.
Install angle iron with the joist back in its original position place one section of the angle iron on the uppermost section of the rafter just before the area where it is sagging or broken.
The first step is to the basement first.
Any sagging will gradually be lifted and by the time you have finished the garage roof repair your roof should but upright again.
A sagging garage roof a leaning garage or a garage in need of straightening can lead to other problems.
If necessary use something to force the roof up while you work the beams into place and fasten them.
It is best to do all repairs from the top of the roof which means you will have to tear up shingles and other coverings as well as the roof decking in some cases.
Push up on the plywood until the foam is touching the underside of the roof decking.
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.
Rotten or saturated sheathing can also cause roof lines to sag.
It may be necessary to tear up shingles to fix a sagging roof.
Attach it to the beam with carriage bolts but do not tighten completely.