Replacing Rotted Roof Rafters

Make the new section twice as long as the rafter tail.

Replacing rotted roof rafters.

Measure the dimensions of the old rafters beneath your roofing surface. If you are using an extension. Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney. How to replace the rafters without removing the roof.

Cut a replacement piece from pressure treated lumber. Place a stepladder or extension ladder under the rafter end with the most damage. In addition to wood you also have the option of choosing a material like cellular pvc fiber cement aluminum or. Measure from the end of the rafter tail to the area of good wood with a tape measure.

The rotten wood will come away easily. If the entire rafter was rotten use the length. Screw a new section of rafter to the old one to reinforce the tail. 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.

Clamp a 1 by backing board in place and screw the new rafter to it. Use your tape measure to record the distance of both rafter legs. Cut off the rotted rafter tail with a reciprocating saw. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches.

Remove weak spongy wood preserve and protect wood wi. Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound. When measuring extend the. Discard the wood in a.

How to replace rotted wood rafters step 1. Use a reciprocating saw to chop out the rotted rafter. Make sure you also pick up enough pressure treated lumber to cut new shingle molds and rafters if necessary. Measure the length of framing wood needed with a measuring tape.

Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Slide one of the newly cut rafter legs into position directly next to the old rafter. Remove the rotted wood with a chisel and pry bar.

How to replace rotted rafter ends on a gable roof step 1.