Repair Broken Roof Rafters

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.

Repair broken roof rafters. Drill a pilot hole in the wood through each of the open holes in the angle iron. Rafters can split as a result of excessive weight on the roof or damage from fallen objects such as trees or power poles. 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. Repeat the process for the joist beneath your old roof rafter.

Rafters can also be damaged by a blow to the roof from falling branches. An l channel that is 1 by 1 and at least 2 feet long should be adequate for most rafters. Use your tape measure to record the distance of both rafter legs. Although the rafter must be replaced if it is completely broken smaller areas of damage can be repaired through the application of a scab board.

Before you can purchase the l channel you need to know the size of the rafter. Repairing this is called scabbing. Step 1 measure the damaged rafter. Use a circular saw to cut two sets of new rafters from the same size wood by the same dimensions.

With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. Obviously this is not a good situation as it can cause the entire roof to fail if not addressed. A cracked roof rafter can create a sagging and unsightly roof. Regardless of the cause a split rafter must be repaired to ensure the.

A cracked roof rafter needs to be repaired and can be done byf an experienced do it yourselfer. Slip a bolt through each hole then place a flat washer lock washer and nut on the threads of each bolt.