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.
How to level roof rafters.
If needed shim trusses or rafters to level the nailing surface and install blocking to straighten any warped or bowed top chords of trusses or rafters.
If one support is as little as 1 4 inch lower or higher than the one next to it you might end up with an uneven roof.
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.
While it isn t that difficult to build rafters the wall system supporting the roof must be level and square.
Mineral wool friction fits between rafters providing an optimum seal and preventing gaps associated with rigid foam boards which can otherwise lead to unwanted heat loss.
Use your string line to determine how much the roof need to go up.
Download our solutions guide download our pitched roofs rafter level pdf.