Old Roof New Roof Joined Rafters Fix

High enough to give room to nail the mid span cross tie at the desired location.

Old roof new roof joined rafters fix.

Cut a piece of 1 2 inch plywood that will cover the area. However the trick to this process is to do it very slowly so it may take a few weeks before you get the rafter into a position where it is straight again. The easiest way to straighten rafters is to jack them into position. Measure the dimensions of the old rafters beneath your roofing surface.

Then the beam or roof may sag. Save those old shingles and number them for replacing later. Use your tape measure to record the distance of both rafter legs. Measure the damaged area between your roof rafters or trusses.

The new part of the roof system can be erected both above and below the old elements of the roof. When repair is no longer an option the roof rafters must be replaced. First remove the rotten wood and then replace it with new rafters. This project requires two parts.

Attach to the rafters using metal clamps or serrated plates. With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. Move the jack in increments of one inch to allow for the roof to be able to move with it without cracking. Starting two courses higher than where the new ridge meets the old roof unseal the shingle tabs a thin flat bar or a joint taping knife works well and pop the nails of the overlying course.

Notice the rafter spreader bolt. I e the original roof was a light wood shingle roof and the new replacement roof is a concrete tile roof weighing 5 or 10 times more than the original roof. Wood rotting from the inside out compromises the structural integrity of the rafter. To avoid this there are additional pads on the connection phase with a base.

Repeat the process for the joist beneath your old roof rafter. Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions. Remove two shingles to each side of the new valleys until you reach the bottom.