Replacing Rotted Roof Rafters

Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney.

Replacing rotted roof rafters. How to replace rotted wood rafters step 1. Discard the wood in a. Cut a replacement piece from pressure treated lumber. Cut a replacement board from 2 by pressure treated lumber that is the same size and width as the rafter tail you just cut using a circular saw.

When measuring extend the. Use your tape measure to record the distance of both rafter legs. Clamp a 1 by backing board in place and screw the new rafter to it. Replace rotted lookouts so you have a good nailing surface for your new soffit boards photo 7.

Screw a new section of rafter to the old one to reinforce the tail. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches. If the entire rafter was rotten use the length. Measure the length of framing wood needed with a measuring tape.

Place a stepladder or extension ladder under the rafter end with the most damage. Remove the rotted wood with a chisel and pry bar. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. Make sure you also pick up enough pressure treated lumber to cut new shingle molds and rafters if necessary.

This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. The rotten wood will come away easily. Use a reciprocating saw to chop out the rotted rafter. Remove weak spongy wood preserve and protect wood wi.

In addition to wood you also have the option of choosing a material like cellular pvc fiber cement aluminum or. How to replace the rafters without removing the roof. Measure from the end of the rafter tail to the area of good wood with a tape measure. Make the new section twice as long as the rafter tail.

Measure the dimensions of the old rafters beneath your roofing surface. The cleat helps support the new overhang. Cut off the rotted rafter tail with a reciprocating saw. If the dry rot is extensive enlist a contractor to replace the rotted.

Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound.