Rotted Roof Rafters

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

Rotted roof rafters.

If the entire rafter was rotten use the. Clamp a 1 by backing board in place and screw the new rafter to it. The cleat helps support the new overhang. Cut a replacement piece from pressure treated lumber.

Slide one of the newly cut rafter legs into position directly next to the old rafter. Things you ll need stepladder or extension ladder helper tape measure 2 by 6 inch boards salt treated circular saw speed square reciprocating saw drill with 1 2 inch bit 1 2 inch wooden dowels wood glue hammer. How to replace the rafters without removing the roof. The rotten wood will come away easily.

Things you ll need pry bar reciprocating saw circular saw 2 by pressure treated lumber 1 by pressure treated lumber wood clamps screws screwdriver primer paintbrush paint oil based primer automotive body repair putty putty knife. Assuming it s in good shape you can leave it in place and install the new materials around it. Cut away rotten or damaged rafters. Since roof decking is made from wood and wood composites it is particularly susceptible to rotting and water damage when continuously exposed to sustained or excess moisture.

Use your tape measure to record the distance of both rafter legs. Measure the dimensions of the old rafters beneath your roofing surface. Discard the wood in a garbage bin as you work to. Use a reciprocating saw to chop out the rotted rafter.

If the dry rot is extensive enlist a contractor to replace the rotted. Dry rot on the ends of gable rafters must be addressed before it spreads to the roof sheathing or rafters in the attic. How to replace rotted wood rafters. Water seeps into your roofing system in many different ways.

If it shows signs of rotting water damage or other wear you ll need to chop it out using a reciprocating saw.