If you were able to keep the removed section in one piece measure it.
Replaceing plywood on roof.
Climb up and walk carefully onto the roof.
This is how your contractor will build your roof back up after tearing it down to the 3 8 inch plywood sheathing or roof deck.
How to replace rotted roof plywood sheathing step 1.
The inspection should take place when the old shingles have been removed.
If you are getting a new roof while you may not necessarily need to have the plywood decking replaced you should have it carefully inspected by a qualified roofing contractor.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
3 8 should be replaced optimally but it would be better to use all the same thickness sheathing than to mix them.
The tear off gets a lot more complicated if you have something other than asphalt up there.
And this will reduce the life of the shingles tar paper and roof.
Choosing the right type of plywood for the roof is one of the most important construction decisions that you will have to make.
Select plywood or oriented strand board that is the same thickness as the wood you are replacing.
It should reach 3 feet beyond the inside of the wall and cover any valleys to prevent ice dams and wind driven.
Set up a ladder at an even location on the ground next to the home.
I am using a 7 16 osb sheathing that i got from lowe s.
Both osb and plywood for the roof have been approved for use so it may come down to what you feel most comfortable using.
If not climb the roof and measure the opening so you can cut the replacement piece to be a perfect fit.
1 ice and water shield.
Remove all of the shingles using a pry bar or a shingle ripper tool to detach the nails.
If you mix thicknesses of plywood it will cause a problem eventually and the thicker sheathing will be noticeable probably within a month.
In this video i show how to replace rotten plywood on your roof without breaking your back.
Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.
If you can see original wood shingles on the underside of your roof when you re up in the attic you ll need not only to tear everything off but also to install new plywood decking all of which likely adds 5 000 or more to your costs.
It determines how long your roof will last and how well it will protect the contents of your home.
A self adhesive membrane applied along the roof s perimeter from the eaves up.
