Rotted plywood is identifiable by sinking areas of the roof or visible leaks.
Replace plywood and section of roof.
Find here detailed information about roof replacement costs.
The roof is arguably the most important component of your house.
Damaged shingles and rotted plywood must be removed before replacing them with new plywood and roofing material.
Stagger the sheathing in a brick pattern for extra strength.
Replace the roof decking select plywood or oriented strand board that is the same thickness as the wood you are replacing.
Rafters run from the peak of the roof.
After cleaning the debris and reframing the roof lay down a base sheathing.
Additional cost for damaged sheets of plywood assuming the underlying rafters or trusses are not rotted too normally are not significantly damaged unless the plywood is literally fallin gapart generally about 40 70 sheet installed unless you have 3 4 exterior sheathing in which case more like 70 100 sheet installed.
If you were able to keep the removed section in one piece measure it.
Measure the opening of the section of roof to be shingled cut the plywood to size and nail to roof rafters.
Eight foot 1 2 inch thick plywood is standard sheathing material.
Look up at the roof area.
After all it keeps water out of the building.
If not climb the roof and measure the opening so you can cut the replacement piece to be a perfect fit.
And while nobody likes having to pay to replace a roof the critical and aesthetic function it serves should help ease the pain of spending 8 000 to 20 000 on the work.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
Locate the rotted roof decking.
Average cost to have roofing replaced is about 5 250 10 500 replacing a 1 500 sq ft.
Although the plywood typically lasts longer than most shingles and roof coverings leaks can cause them to rot.
Gain access to the attic to inspect the plywood or roof decking.