Replacing Rotted Roof Rafters

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

Replacing rotted roof rafters.

Use a reciprocating saw to chop out the rotted rafter. How to replace rotted wood rafters step 1. When measuring extend the. Measure the dimensions of the old rafters beneath your roofing surface.

The rotten wood will come away easily. Measure the length of framing wood needed with a measuring tape. In addition to wood you also have the option of choosing a material like cellular pvc fiber cement aluminum or. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic.

The cleat helps support the new overhang. Remove the rotted wood with a chisel and pry bar. This video shows from start to finish the repair of rotted endbeams on a house using the endrot system. Screw a new section of rafter to the old one to reinforce the tail.

Make the new section twice as long as the rafter tail. If the entire rafter was rotten use the length. If the dry rot is extensive enlist a contractor to replace the rotted. Remove weak spongy wood preserve and protect wood wi.

Cut off the rotted rafter tail with a reciprocating saw. Install new 2x4 lookouts to replace rotted ones or screw a new one to the old one if it s mostly sound. Make sure you also pick up enough pressure treated lumber to cut new shingle molds and rafters if necessary. Replace rotted lookouts so you have a good nailing surface for your new soffit boards photo 7.

Clamp a 1 by backing board in place and screw the new rafter to it. Cut a replacement piece from pressure treated lumber. How to replace the rafters without removing the roof. Use your tape measure to record the distance of both rafter legs.

Discard the wood in a. Place a stepladder or extension ladder under the rafter end with the most damage. Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches. Slide one of the newly cut rafter legs into position directly next to the old rafter.

Measure from the end of the rafter tail to the area of good wood with a tape measure.