How To Repair A Broken Roof Rafter

Measure the dimensions of the old rafters beneath your roofing surface.

How to repair a broken roof rafter.

Slide one of the newly cut rafter legs into position directly next to the old rafter. Obviously this is not a good situation as it can cause the entire roof to fail if not addressed. With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. High enough to give room to nail the mid span cross tie at the desired location.

To secure the l channel you will run 2 3 8 inch lag bolts into the bottom and the side. Drill a pilot hole in the wood through each of the open holes in the angle iron. Measure and mark two pieces of hardwood lumber to this length using the tape measure a carpenter s pencil and. Measure the length of the damaged area on the rafter using a tape measure.

Add 4 feet to this measurement. How to replace the rafters without removing the roof. Mark each piece of the. Tighten bolts with a wrench.

This is where your wooden dowels will insert into the wood. The important aspects of this repair is the length of the split as you will need to adequately cover it. Pull the old rafter end away from the roof eave. Notice the rafter spreader bolt.

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. Repairing this is called scabbing. Attach the piece to the. Hold the replacement against the end of the remaining rafter.

You should attach the l channel only in the four holes furthest away from the damage. How to repair broken rafters step 1. Make two lines on the side of the replacement rafter end and the end of the rafter 1 inch from the top and bottom edges. Position the piece flat alongside the cracked rafter with the lower end at the wall.

You will drill two holes in the bottom and two holes in the side.