Use your string line to determine how much the roof need to go up.
How to level roof rafters.
Sagging rafters can lead to serious problems with the entire roofing system.
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.
In order to build rafters you need to know the roof pitch and the roof span overall width of roof.
It is well worth the effort to rough out the wall system to be square and level so the roof framing is simple.
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.
Download our solutions guide download our pitched roofs rafter level pdf.
While it isn t that difficult to build rafters the wall system supporting the roof must be level and square.