It is probably a 3 x 4 section that i need to cut out replace the plywood and re roof.
How to replace a small section of roof.
Do not place an entire 8 foot section of plywood onto roof.
Replace any cracked rotted or missing siding making sure the new piece overlaps the step flashing by at least 2 in.
Stagger the sheathing in a brick pattern for extra strength.
Measure the opening of the section of roof to be shingled cut the plywood to size and nail to roof rafters.
How to replace the roof on a small building.
Eight foot 1 2 inch thick plywood is standard sheathing material.
Dig around with a putty knife to see if the area is sealed.
The main difference between replacing the roof on a small building and replacing one on a larger building is that the former involves less work and.
Also check the siding above the step flashing.
Such a long piece is structurally unstable in the middle.
Merely apply three small spots of asphalt plastic roof cement under the new shingle s tabs evenly spaced along the shingle length and press the shingle flat down into place.
I ve done a little roofing before but never a patch job.
Dig out any suspect caulk and replace it with a high quality caulk.