There are several ways you can do to insulate the metal roof.
Installing fanfold insulation on roof.
Consult local building codes and membrane manufacturers for system requirements.
A install tri built fanfold underlayments directly over old siding using galvanized or aluminum roofing nails with nails spaced about 2 feet apart.
If installing closed cell spray foam or other low permeance insulation to the interior it is very important to verify that the roof sheathing and framing are dry e g.
Overlap seams by about 3 inches.
R tech ff is ideal in recover applications and is well suited for single ply roof applications that employ mechanically fastened or ballasted tpo pvc epdm and cspe membranes.
My question is do i install fanfold foam insulation over the substrate and then put housewrap over the fanfold or do i put the housewrap on and then fanfold over that and then vinyl siding any help with this would be greatly appreciated.
Beginning of installation means installer accepts the existing conditions.
It can be touted that foam batting material is the best one to pair with metal roof insulation.
It is not the normal insulation type that can be rolled up.
Eps insulation is easy.
Tips to install metal roof insulation use foam batting.
12 15 moisture content or less before installing cavity insulation.
Benchmark foam s tapered expanded polystyrene eps roofing system provides effective drainage for flat roofs.
The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples.
You can easily go through several sheets of insulation and know that they are secure.
My house currently has cedar shake which i m removing because it is in poor condition.
R tech rigid foam fanfold insulation.
Putting an insulation layer could help you to stay away from this issue.
Verify that substrate dry and free of foreign material that will damage the fanfold underlayment.
Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing.
If the existing siding is damaged remove it and install tri built fanfold underlayment directly to the substrate.
I plan on putting vinyl siding.
Foam board insulation is easy to use and is a great diy way to add some insulation.
