Repairing Rotted Roof Rafters

Wood rotting from the inside out compromises the structural integrity of the rafter.

Repairing rotted roof rafters. This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Rafter and joist systems are made up of two pieces of wood that run directly beneath the roofing surface and give it its shape while joists bridge the gap between the two rafter ends and support the whole thing. Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney. Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound.

Over time roof rafters can wear crack or rot and replacements may be in order. The cleat helps support the new overhang. If you see a rotted rafter you should take steps to identify the source of moisture that is causing the decay. Your new boards will have to match the old ones in terms of width and thickness so when you go to your local home improvement center you may want to bring them a sample of your old eaves so.

I replace the damaged wood and prep for the new roof installation. It may also include replacing roof sheathing. Commonly what you can see of the rotted wood is only part of the problem it is what you cannot see under the surface of the wood that can be the main issue. Clamp a 1 by backing board in place and screw the new rafter.

Rotted rafter ends not only give you nothing to nail to when rehanging the fascia board and gutters they also risk the stability of the roof from flooding or collapsing. This includes repairing any leaks in the roof above the rafter. Replacing rotted rafter ends on a gable roof is a matter of removing the existing ends and installing new wood. Remove weak spongy wood preserve and protect wood wi.

If the dry rot is extensive enlist a contractor to replace the rotted. Use a reciprocating saw to chop out the rotted rafter. Your first step will be prying away the bottom and sides of the old eaves. Screw a new section of rafter to the old one to reinforce the tail.

Cut a replacement piece from pressure treated lumber. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. Fortunately repairing rotten or weathered eaves is a relatively simple project. Removing termite damaged rafters and starter boards.

Install a new fascia. Make the new section twice as long as the rafter tail.