Replacing Rotted Roof Rafters

Remove the rotted wood with a chisel and pry bar.

Replacing rotted roof rafters.

Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney. Make sure you also pick up enough pressure treated lumber to cut new shingle molds and rafters if necessary. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches. In addition to wood you also have the option of choosing a material like cellular pvc fiber cement aluminum or.

This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound. The cleat helps support the new overhang. Place a stepladder or extension ladder under the rafter end with the most damage.

Measure the length of framing wood needed with a measuring tape. 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. Discard the wood in a. How to replace rotted wood rafters step 1.

Measure the dimensions of the old rafters beneath your roofing surface. Clamp a 1 by backing board in place and screw the new rafter to it. Slide one of the newly cut rafter legs into position directly next to the old rafter. Remove weak spongy wood preserve and protect wood wi.

If you are using an extension. If the entire rafter was rotten use the length. Make the new section twice as long as the rafter tail. The rotten wood will come away easily.

Use a reciprocating saw to chop out the rotted rafter. Cut off the rotted rafter tail with a reciprocating saw. How to replace rotted rafter ends on a gable roof step 1. Measure from the end of the rafter tail to the area of good wood with a tape measure.

Screw a new section of rafter to the old one to reinforce the tail. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. Use your tape measure to record the distance of both rafter legs. When measuring extend the.

If the dry rot is extensive enlist a contractor to replace the rotted.