Use closed cell foam it green for attic rafters.
Closed cell spray foam for attic.
The spray foam insulation or spray polyurethane foam spf is a popular alternative to traditional building insulation such as fiberglass.
This type of spray polyurethane foam can be classified into two different types.
This medium density spray foam is a closed cell spray foam that is typically used where there is the need for r value insulation per inch possible.
R value of 7 in 1 inch 97 closed cell foam.
100 free of cfcs vocs penta bdes urea formaldehyde.
This type of spray foam offers the specific benefits of continuous insulation interior wall cavity fill and unvented attic applications.
The best attic insulation.
There is 300 difference there but the cost they give you is about a third difference and open cell foam at 12 inches will not give you the performance of 2 inches of closed.
Light density open cell spray foam insulation and medium density closed cell spray foam insulation.
Class i e 84 fire retardant meets building code spec.
It also stops air flow through and.
The myth that open cell is more economical is bullshit.
Get your kits the easy to use spray foam kit.
Open cell foam weighs 1 2 pound per cubic foot and closed cell weighs 2 lbs per cubic foot.