Repair Broken Roof Rafters

Repeat the process for the joist beneath your old roof rafter.

Repair broken roof rafters.

Measure the dimensions of the old rafters beneath your roofing surface. Repairing this is called scabbing. A laser level was used to throw a straight line to determine when each pair of jacked rafters were straightened and the new collar tie could be attached. Slip a bolt through each hole then place a flat washer lock washer and nut on the threads of each bolt.

Obviously this is not a good situation as it can cause the entire roof to fail if not addressed. Regardless of the cause a split rafter must be repaired to ensure the. Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions. Rafters can also be damaged by a blow to the roof from falling branches.

Use your tape measure to record the distance of both rafter legs. Before you can purchase the l channel you need to know the size of the rafter. A cracked roof rafter can create a sagging and unsightly roof. Drill a pilot hole in the wood through each of the open holes in the angle iron.

Step 1 measure the damaged rafter. With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. Rafters can split as a result of excessive weight on the roof or damage from fallen objects such as trees or power poles. Repair damage to a rafter using scab boards.

Overview from time to time an attic rafter will split along a knot typically after having a new roof installed because of the workers walking around on it. An l channel that is 1 by 1 and at least 2 feet long should be adequate for most rafters.