I will hit the studs.
Celotex under siding.
Celotex was founded in the early 1920s as a fiberboard insulation company.
At sheathing exterior product index we describe products used on building exterior walls roofs as a structural sheathing or as a nail base sheathing.
The current siding is a wood lathe siding that is at the end of its life.
As you know here in maryland temperatures can fluctuate a lot no matter what season it is.
Asbestos is a heat resistant mineral that was added to many celotex products to make them fireproof.
Also i was thinking of house wrapping this before siding just to seal it up a little better.
My house has the black celotex fiber board under the aluminum siding on the first story and plywood on the second.
Before i answer this question let me give you a little background on vinyl siding installation in our area.
Is the rigid foam board under vinyl siding really insulating your home.
Splits and rotting everywhere.
Can i remove the wood and side over celotex.
The problem is i don t have the budget for vinyl siding and sheeting.
Thousands of houses in my area built like that when i started in 1970 we used i sheet of ply in the corners and the rest was celotex now they are using 1 sheet of 1 2 osb in the corners and 1 2 foam board on the rest vinyl siding on that i don t know why we bothere with locks as anyone could go right thru any wall in 10 minutes with a hammer.
Since i am doing this predominantly myself i of course have to be cognizant of the weather while things are exposed.