Image 1 of 5. After installing several layers of rigid foam above the roof sheathing, these workers installed plywood above the rigid foam. The plywood was fastened through the rigid foam to the rafters with long screws.

How to Install Rigid Foam Sheathing What you need to know to install polyisocyanurate, XPS, or EPS on the outside of your walls

Full line of concrete building envelope products including HeavyGUARD, ProGUARD, WallGUARD and more for your roof system and insulated wall panel needs...

Insulfoam rigid foam is a high-performance built-to-spec sheathing insulation that provides superior R-value and moisture resistance. Made by one of North America's leading insulation and construction materials companies, it is offered in multiple thicknesses and dimensions, in both square-edged and tongue-and-groove joints.

Rmax Thermasheath Polyiso Rigid Foam Insulation Board is suitable for use in wall sheathing and residential and commercial application.

ADO specializes in helping you get your job done smart. We provide insulation accessories for insulation contractors and other building professionals.

Foam board insulation products types and sizes. Learn about R values, uses and benefits of insulation board. Read more about this DIY guide to foam board.

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6 INSTALLATION Flashing Before installing siding, make sure that flashings are installed to prevent moisture from entering wall and roof spaces. Flashing should be made from a corrosion-

Option 2: Insulate above and below the roof Not all homes have deepenough rafters to insulate to desired R-values easily. Similarly, not everyone can afford to spray nearly 10 in. of open- or closed-cell spray foam in their roof or to stack a half-foot of rigid foam on the roof deck.