The other two have stated that as long as the plywood is good and stays dry it can last forever.
How long does plywood last on a roof.
We blame ourselves for not taking care of it.
Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame of the house.
Choosing the right type of plywood for the roof is one of the most important construction decisions that you will have to make.
This guide will explain the different uses of plywood as well as popular plywood sheet sizes and its rating and grade system so that you can choose the best plywood for your project.
The best choice depends primarily on the intended use but budget can also be a consideration.
Today builders can choose from several types of exterior plywood.
As plywood lasts about 30 to 40 years and we run the risk of delamination and required replacement in a few years.
The structural component of the roof.
Choosing plywood for the roof.
Cdx plywood a stock item at most lumberyards is a utility grade suitable for most outdoor.
We apply our own water proofing thompson s or california for untreated sheathing that has lengthy exposure periods during construction but there are some expensive poducts you can buy if.
How long should the plywood on our roof be good before rotting.
Pt goes a long time don t know the end points.
When the roofing material dries quicker it can be used to make sure that the roof will stay firm for a longer time.
The topic of plywood has come up and 2 have said we definitely need to replace the plywood even if it looks good.
Even though the wood is porous it is more natural and it can dry quickly.
The many types of plywood can differ in materials number of layers rating and grade.
Exterior plywood came on the scene in 1934 with the development of a waterproof adhesive.
You can get away with more using 3 4 t g roof or subfloors.
Overall plywood is a little bit better for roofing.
Plywood is a necessity in many diy and construction projects but not every type of plywood works for every project.
We did a complete tear off replacement 12 years ago and saw the first ceiling leak about 4 years ago.
Should have fixed it then and a friend did try but for a long time it wasn t too bad.
Both osb and plywood for the roof have been approved for use so it may come down to.
Untreated plywood maybe a few rains on the 5 8.
This is why plywood is considered as the better option for roofing.
The protective layer keeping your home s air ventilated and protected against moisture.
It determines how long your roof will last and how well it will protect the contents of your home.
Roofing felt also known as tar paper serves as both an extra layer of protection between the shingles and the plywood and as a temporary moisture barrier until all the shingles are in place.
Now it s bad and the plywood there is rotted.
