Set up a ladder at an even location on the ground next to the home.
Replaceing plywood on roof.
Rafters run from the peak of the roof.
The minimum plywood for roofing.
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.
Remove tiles and slate.
Climb up and walk carefully onto the roof.
Installing plywood on a roof hello youtubers here s another video about plywood sheathing and composition shingles after replacing all damaged wood and.
I am using a 7 16 osb sheathing that i got from lowe s.
The tear off gets a lot more complicated if you have something other than asphalt up there.
Choosing the right type of plywood for the roof is one of the most important construction decisions that you will have to make.
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.
It determines how long your roof will last and how well it will protect the contents of your home.
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.
If you were able to keep the removed section in one piece measure it.
Both osb and plywood for the roof have been approved for use so it may come down to what you feel most comfortable using.
Roofs are framed with rafters or trusses which are rafters joined by internal braces so they install as a single component.
How to replace rotted roof plywood sheathing step 1.
1 ice and water shield.
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.
A self adhesive membrane applied along the roof s perimeter from the eaves up.
In this video i show how to replace rotten plywood on your roof without breaking your back.
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.
And this will reduce the life of the shingles tar paper and roof.