If the existing siding is damaged remove it and install tri built fanfold underlayment directly to the substrate.
Installing fanfold insulation on roof.
A install tri built fanfold underlayments directly over old siding using galvanized or aluminum roofing nails with nails spaced about 2 feet apart.
Another benefit of using staples is that they do not make a large hole when penetrating into the sheathing.
Consult local building codes and membrane manufacturers for system requirements.
There are several ways you can do to insulate the metal roof.
Tips to install metal roof insulation use foam batting.
I plan on putting vinyl siding.
My house currently has cedar shake which i m removing because it is in poor condition.
Verify that substrate dry and free of foreign material that will damage the fanfold underlayment.
It can be touted that foam batting material is the best one to pair with metal roof insulation.
Eps insulation is easy.
Beginning of installation means installer accepts the existing conditions.
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.
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.
R tech rigid foam fanfold insulation.
It is not the normal insulation type that can be rolled up.
Benchmark foam s tapered expanded polystyrene eps roofing system provides effective drainage for flat roofs.
12 15 moisture content or less before installing cavity insulation.
Overlap seams by about 3 inches.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.
Foam board insulation is easy to use and is a great diy way to add some insulation.
To install foil insulation roll it out parallel to the ridge and cut it with a utility knife starting at the drip edge and working your way up.
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.
The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples.
