Remove the rotted wood with a chisel and pry bar.
How to repair rotted roof rafters.
Insert a strip vent or other vents in the new soffit to ventilate the attic and roof.
The rotten wood will come away easily.
Remove an area of the roof shingles from the edge of the roof to the upper line of the overhang using a 16 inch nail bar and hammer to pull the roofing nails.
If it shows signs of rotting water damage or other wear you ll need to chop it out using a reciprocating saw.
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.
How to replace the rafters without removing the roof.
Measure the length of framing wood needed with a measuring tape.
How to replace rotted wood rafters.
Use your tape measure to record the distance of both rafter legs.
Use cardboard or plastic baffles opening photo to keep your insulation from blocking the airflow.
Discard the wood in a garbage bin as you work to.
Use galvanized finish nails to fasten the soffit boards.
Cut a piece of 1 by pressure treated lumber that is longer than the replacement board by 4 to 6 inches.
Cut away rotten or damaged rafters.
Assuming it s in good shape you can leave it in place and install the new materials around it.
If the entire rafter was rotten use the.
Examine the condition of the rafter the thick beam running the length of the overhang.
Measure the dimensions of the old rafters beneath your roofing surface.
Cut out the section of the roofing.
Slide one of the newly cut rafter legs into position directly next to the old rafter.