In many cases you ll need to fix sagging trusses or rafters to repair your roof.
How to fix sagging roof rafters.
Use your string line to determine how much the roof need to go up.
When considering what to do about sags in a roof start by noticing if the sag is in sheathing between rafters page top photo0 or sagging along the length of the rafters.
Roof rafter decking sagging.
Sagging rafters can lead to serious problems with the entire roofing system.
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.
Although repairing sagging rafters is not difficult you will need to have some access to get the job done so if you are struggling to get easy access that could be a problem and you may need to get professional assistance.
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.
If you find your roof is sagging or a slight dip is visible then you are probably a victim of sagging roof rafters.
This article describes a diy repair project using a site built spreader to straighten sagged roof rafters and decking.
Sagging rafters may be the result of numerous heavy snowfalls or inadequate ceiling joists.
Push up on the plywood until the foam is touching the underside of the roof decking.
That s how to fix a sagging roof.
This can cause roof caving water leakage.
How to fix sagging roof trusses or rafters.
Rafters support the weight of the roof and any rain or snow that falls on it.
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.
You ll need a steel l channel to get your rafter or truss back into shape.
If that s what you re dealing with regarding your home take these steps to ensure your rafter or truss gets fixed properly.
Ceiling joists are placed at the ends of the rafters to keep the rafters from spreading out and sagging.
Sagging rafters can result in water leaking and roof caving which can be very difficult and expensive to rectify.
