Rafters run from the peak of the roof.
Replace shed roof plywood.
Replacing the plywood or osb roof sheathing on your roof will require you to remove most if not all of your roofing material and underlay.
It determines how long your roof will last and how well it will protect the contents of your home.
Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof design.
First cut your rafter boards to size using a circular.
If your shed already has rafters in place and you just need to put in or replace the roof itself you can skip straight to installing your new roofing materials.
To build a shed roof you ll need rafter boards plywood gusset plates plywood sheathing felt roofing paper and shingles.
Choosing the right type of plywood for the roof is one of the most important construction decisions that you will have to make.
However if you are already removing much of your roofing material for replacement then changing out the plywood is not much more trouble.
How to replace shed roof plywood.