Your truss sizes may vary.
Fix sagging roof truss.
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.
You can expect to repair sagging trusses in two to four hours depending on the size and scope of the project.
A sagging roof as shown in figure 1a is usually the result of a damaged or broken roof rafter.
How to fix sagging roof trusses or rafters.
At the chimney the homeowner designed an inverted truss to straighten the sagged 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.
How to repair a sagging roof part 1.
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.
In many cases you ll need to fix sagging trusses or rafters to repair your roof.
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.
Fixing a truss or rafter.
Fixing a sagging roof as soon as you spot it is very important otherwise you could find that the problem will only worsen over time and in the end you may need to have the entire roof replaced which could be extremely costly not to mention a lot of hassle.
Sagging rafters can lead to serious problems with the entire roofing system.
Sagging ceiling could be an indication of framing issues some of which could be related to the roof.
With the inverted hinged truss in place a vertical wedge can be used to bend the sagged rafter upwards.
Roof sag sagging roof rafter repair site built rafter spreader mid span rafter ties smooth wavy roof.
You ll need a steel l channel to get your rafter or truss back into shape.
If you have just stepped outside your house and realized that your roof is no longer straight this could signal a problem.
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.
