If you are using an extension.
How to replace a rotted roof rafter.
Pull down to remove the old soffit.
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.
Cut a replacement piece from pressure treated lumber.
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.
Make the new section twice as long as the rafter tail.
Use a reciprocating saw to chop out the rotted rafter.
Measure the dimensions of the old rafters beneath your roofing surface.
Measure the length of framing wood needed with a measuring tape.
How to replace rotted wood rafters step 1.
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.
Use your tape measure to record the.
Use a hammer and nails to.
When measuring extend the.
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 rotted rafter ends on a gable roof step 1.
How to replace the rafters without removing the roof step 1.
Measure from the end of the rafter tail to the area of good wood with a tape measure.
Replace rotted lookouts so you have a good nailing surface for your new soffit boards photo 7.
Discard the wood in a.
Screw a new section of rafter to the old one to reinforce the tail.
The rotten wood will come away easily.
If it shows signs of rotting water damage or other wear you ll need to chop it out using a reciprocating saw.
Be careful not to damage any nearby roof shingles or flashing.
Remove the rotted wood with a chisel and pry bar.
Cut out the section of the roofing.
Slide one of the newly cut rafter legs into position directly next to the old rafter.
Examine the condition of the rafter the thick beam running the length of the overhang.