How To Repair A Broken Roof Rafter

Drill a pilot hole in the wood through each of the open holes in the angle iron.

How to repair a broken roof rafter.

Measure the length of the damaged area on the rafter using a tape measure. Slide one of the newly cut rafter legs into position directly next to the old rafter. Position the piece flat alongside the cracked rafter with the lower end at the wall. How to replace the rafters without removing the roof.

Measure mark and cut the piece of framing lumber to length using a circular saw. Notice the rafter spreader bolt. This is where your wooden dowels will insert into the wood. To secure the l channel you will run 2 3 8 inch lag bolts into the bottom and the side.

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. Hold the replacement against the end of the remaining rafter. Attach the piece to the. You will drill two holes in the bottom and two holes in the side.

How to repair broken rafters step 1. With the roof rafter pair straightened clamp new mid span cross ties in place and then nail the tie ends to the rafters. Add 4 feet to this measurement. Slip a bolt through each hole then place a flat washer lock washer and nut on the threads of each bolt.

Measure and mark two pieces of hardwood lumber to this length using the tape measure a carpenter s pencil and. Pull the old rafter end away from the roof eave. Repairing this is called scabbing. 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.

The important aspects of this repair is the length of the split as you will need to adequately cover it. Measure the dimensions of the old rafters beneath your roofing surface. Use your tape measure to record the distance of both rafter legs. Obviously this is not a good situation as it can cause the entire roof to fail if not addressed.

Tighten bolts with a wrench.