The first step is to find out how many rafters are sagging and if anything else is damaged.
How to repair sagging roof trusses.
Damaged roof truss or rafter.
Glue a piece of 1 rigid styrofoam to the plywood.
The first thing you need to do is to assess the damage.
Drill holes in angle iron.
Determine the extent of damage.
Place a 4 foot 2x8 across the ceiling joists just beneath the sagging truss.
While the best method of repairing any damage to a roof truss rafter or decking is to work from the top of the roof by removing the weather sheathing underlayment and then the roof decking itself this is not always possible or practical due to the time of year and or budget constraints.
Place one precut patch.
How to repair a truss sag step 1.
After measuring the damaged area between your roof trusses or rafters cut a piece of 1 2 plywood that will cover the.
Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your.
The basics of the process are as follows.
Driving nails into it might make it worse place.
Cut two 2 by 4s or 2 by 6s to serve as truss patches.
How to straighten sagging roof rafters.
If the roof truss has a small crack you will be using the two wooden boards to patch it up but if the crack is much more severe you should use the steel plates because they offer much stronger support to the damaged truss.
You may find that.
Also inspect the metal or plywood gusset plates used where your wood meets on a truss.
Determining the problem determine where the sag is in your roof in relation to your attic.
Temporarily screw a 3 foot 2x4 to.
One will be placed on either of the flat sides of the.