2 Inch Layer Foam Roof

In the summers here in phoenix that means that foam does a good job insulating your home and preventing heat from getting into the living spaces of your home.
2 inch layer foam roof. Slate roofs national slate association 1926. Only xps foam to be greenguard gold certified and the first xps foam certified by scientific certification systems scs to contain a minimum of 20 recycled content. Contractors often use it to insulate under slabs ceilings walls and roofs. Foam board insulation is easy to use and is a great diy way to add some insulation.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. This foam is applied over the top of the membrane that came down from the roof deck catching the wall control layers. Some types of thicker foam board insulation are available but they may need to be special ordered. Slate roofs national slate association 1926.
Spray polyurethane foam closed cell per inch of thickness. The roofing installation team will then apply a durable outer layer to protect the foam from the elements. Rmax r matte plus 3 1 2 in. R 7 7 rigid foam insulation.
More product details close rmax r matte plus 3 1 2 in. Foam is especially good at the following. All these have r values ranging from r 3 2 to r 3 8 per inch. Slate roofing 3 4 inch slates.
Installed on the roof exterior foam makes the living space below more comfortable and reduces the likelihood of ice dams. Closed cell spray foam has a far better r value per inch than other less effective insulations like cellulose fiberglass or even open cell foam. R 3 2 polyisocyanurate rigid foam insulation board. The illustration shows two layers of osb or plywood roof sheathing.
A lower layer conventionally nailed to the rafters and an upper layer installed as a nailing surface for the roofing material on top of the rigid foam. R 5 scored square edge rigid foam board insulation sheathing. Foamular 150 1 in. Standing seam metal 0 032.
Magzo window ac foam seal tape 2 inch wide x 1 2 inch thick open cell adhesive foam tape high resilience foam insulation tape total 6 5 feet 6 5ft x 1 roll 4 7 out of 5 stars 245 13 58 13. Slate roofing 1 2 inch slates. Note the 2 lb ft3 spray polyurethane foam enhancing the air seal around the extended rafters. If you want to install rigid foam above your roof sheathing in climate zone 3 then 1 2 inch of rigid foam board is not ideal this rigid foam layer needs a minimum r value of r 5 and that s impossible with 1 2 inch of foam.
R 3 2 polyisocyanurate rigid foam insulation board.