Fixing a truss or rafter.
Fixing sagging roof rafters.
Half inch drywall can sag if it s hung under roof trusses that are spaced every 24 in.
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.
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.
Sagging roof lines can originate with the horizontal ceiling rafters.
Sagging rafters can lead to serious problems with the entire roofing system.
This can be a serious problem in future if not treated at the right time.
In many cases you ll need to fix sagging trusses or rafters to repair your roof.
When the roof framing is assembled two ceiling rafters are often joined together to create a longer span.
This article describes a diy repair project using a site built spreader to straighten sagged roof rafters and decking.
When rain water comes through your roof s shingles the plywood will wrap rot or weaken and this will make the roof look like it is sagging between its rafters.
Realignment of the rafters may solve the sagging problem.
If your ceiling drywall is sagging between joists sometimes called pillowing it s probably on the top floor and attached to the roof trusses.
This can cause roof caving water leakage.
Rafters support the weight of the roof and any rain or snow that falls on it.
You ll need a steel l channel to get your rafter or truss back into shape.
If you find your roof is sagging or a slight dip is visible then you are probably a victim of sagging roof rafters.
Sagging rafters may be the result of numerous heavy snowfalls or inadequate ceiling joists.
Roof rafter decking sagging.
Also inspect the metal or plywood gusset plates used where your wood meets on a truss look for damage that includes cracks rot breaks and any other impairment.
How to fix sagging roof trusses or rafters.
Ceiling joists are placed at the ends of the rafters to keep the rafters from spreading out and sagging.
If that s what you re dealing with regarding your home take these steps to ensure your rafter or truss gets fixed properly.
If so i bet the installers used 1 2 in.
Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging.
