Replacing Rotted Roof Rafters

Replace rotted lookouts so you have a good nailing surface for your new soffit boards photo 7.

Replacing rotted roof rafters.

Remove weak spongy wood preserve and protect wood wi. When measuring extend the. If you are using an extension. In addition to wood you also have the option of choosing a material like cellular pvc fiber cement aluminum or.

Remove the rotted wood with a chisel and pry bar. Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound. How to replace rotted rafter ends on a gable roof step 1. If the dry rot is extensive enlist a contractor to replace the rotted.

How to replace rotted wood rafters step 1. Cut off the rotted rafter tail with a reciprocating saw. How to replace the rafters without removing the roof. The cleat helps support the new overhang.

Make the new section twice as long as the rafter tail. Use a powder actuated nailer to attach a 2x4 cleat to a brick chimney. Measure from the end of the rafter tail to the area of good wood with a tape measure. 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. 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. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches. Make sure you also pick up enough pressure treated lumber to cut new shingle molds and rafters if necessary.

Cut a replacement piece from pressure treated lumber. Measure the dimensions of the old rafters beneath your roofing surface. The rotten wood will come away easily. Slide one of the newly cut rafter legs into position directly next to the old rafter.

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. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. Use a reciprocating saw to chop out the rotted rafter.

Discard the wood in a.