You will need to remove the shingles and the old decking however which means there will be an exposed hole in the roof.
Sagging roof support.
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.
Use your string line to determine how much the roof need to go up.
If the sagging roof is due to rotting or warping roof decking the repair will be much easier.
The cause of a sagging roof is straightforward in theory.
The result is pooling water causing erosion of the soil meant to support the foundation.
A sagging roof is not only an eyesore but it could also be dangerous for you and your family.
Likewise a flood resulting from a broken water line or natural occurrences can compromise your roof eventually.
Non foundational reasons for a sagging roof.
Since roofs are designed to be straight a curved or sagging roof means that its structural integrity is insufficient and it may be a warning sign that your roof is headed for collapse.
I was wondering if anyone had any advise on bracing the areas that are sagging.
Fixing a sagging roof by bolstering the beams.
Two or more roofs on one structure spell trouble.
See above roof photo.
We have a sagging roof on the back side of our home.
Not enough structural support for the load.
It has rubber roofing due to pitch.
I can fit a floor jack in there and raise up the saggin.
The ceiling joists are sagging near the vent stack.
Sagging rafters can lead to serious problems with the entire roofing system.
Sagging roof lines can originate with the horizontal ceiling rafters.
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.
This is called undercutting.
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.