Old Roof New Roof Joined Rafters Fix

The easiest way to straighten rafters is to jack them into position.

Old roof new roof joined rafters fix. Strengthening can occur when the middle rafters have too much load that threatens to break the beam. When repair is no longer an option the roof rafters must be replaced. 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. High enough to give room to nail the mid span cross tie at the desired location.

Wood rotting from the inside out compromises the structural integrity of the rafter. Notice the rafter spreader bolt. To avoid this there are additional pads on the connection phase with a base. Because driving nails up into the sheathing material will make things worse glue a piece of 1 inch rigid styrofoam to your piece of plywood.

Measure the damaged area between your roof rafters or trusses. First remove the rotten wood and then replace it with new rafters. Measure the dimensions of the old rafters beneath your roofing surface. 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.

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. Move the jack in increments of one inch to allow for the roof to be able to move with it without cracking. Save those old shingles and number them for replacing later.

Then the beam or roof may sag. With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. If a roof has been re roofed with heavier roofing material than the original roof was engineered for. The new part of the roof system can be erected both above and below the old elements of the roof.

Cut a piece of 1 2 inch plywood that will cover the area. Use your tape measure to record the distance of both rafter legs. Repeat the process for the joist beneath your old roof rafter.