A rather simple method of jacking up ceiling joists to take sag out and putting in support lumber.
Jacking up a garage roof.
Long 2 8 ledgers to the northeast and southeast walls about 2 ft.
Once you have established how much the roof sag needs to be jacked up lay a 2x4 plate across the ceiling joists and nail directly under the ridge of the roof.
So i found myself having to jack up one corner of our front side porch roof.
Position the jack on the garage floor at one end of the wall.
Then lower the jack down a little at a time so that the metal can take the weight of the roof.
This time i was jacking the porch roof up so i could install my final and last portion of half round gutter.
Once the ledgers are up drive three double headed 16d form nails through the ledgers into each stud.
From the garage floor.
First perform step 2 except keep the string under your beam and off to the side a bit to make room for some framing.
You can do this by guarding it using an angle iron piece.
Using the shorter post slowly lift up the roof on that side.
Remove the jack quickly and set the iron onto the entire beam.
Inside the garage tack two 12 ft.
Now add collar ties from one side of the rafter to the other.
You may remember my postings last year on.
This is the 3 rd time we ve jacked up a portion of this house.
You should obtain a piece that measures 1 2 with sides that measure 4 in length and an overall length of the entire piece being a minimum of 2 feet.
This is intended to form an added protective layer helping to avoid any cracks occurring in the wood.
Jacking up a porch roof at a sidewall.