Roof sag sagging roof rafter repair site built rafter spreader mid span rafter ties smooth wavy roof.
Fix sagging roof truss.
If you have just stepped outside your house and realized that your roof is no longer straight this could signal a problem.
Sagging ceiling could be an indication of framing issues some of which could be related to the roof.
How to repair a sagging roof part 1.
Your truss sizes may vary.
Sagging rafters can lead to serious problems with the entire roofing system.
If that s what you re dealing with regarding your home take these steps to ensure your rafter or truss gets fixed properly.
In many cases you ll need to fix sagging trusses or rafters to repair your roof.
How to fix sagging roof trusses or 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.
Should the bottom cord of one or more trusses be sagging or damaged it may be reflected in a sagging ceiling or if the roof is over loaded to heavy then the downward pressure may cause the sagging.
However most trusses are either 4 or 6 inches.
Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging.
Step 1 cut two 2 by 4s or 2 by 6s to serve as truss patches.
A sagging roof as shown in figure 1a is usually the result of a damaged or broken roof rafter.
Fixing a truss or rafter.
One will be placed on either of the flat sides of the truss.
You can expect to repair sagging trusses in two to four hours depending on the size and scope of the project.
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.
However if it is a small area it can be caused by damaged roof decking and in some rare cases a sagging roof can even be traced to an underlying foundation problem as it is the house foundation that eventually takes the full load of the roof.
With the inverted hinged truss in place a vertical wedge can be used to bend the sagged rafter upwards.
