Foam Roof Boards

Insulating the roof with polyiso foam boards.

Foam roof boards. You can even place it under the foundation slab. Rigid foam insulation also known as insulating boards provide high r values. R panel is manufactured with a closed cell polyisocyanurate foam core bonded to fiberglass reinforced facers and designed for use over metal nailable and non nailable roof decks with a variety of membrane systems. Retrofitting an insulated cold roof.

Attach to deck board. Install it anywhere from the roof to the foundation. Adding the roof sheathing sheets of 4 x8 osb were then laid directly on top of the rigid foam insulation boards leaving small gaps per the manufacturer s recommendation to avoid buckling at the seams. Washer head extra long screws up to 18 in.

Tapered expanded polystyrene eps roof insulation was developed more than 30 years ago with a dual purpose in mind. Types of insulating boards. The washer head style has good holding power. Rigid foam is produced in various size panels 4 ft x 8 ft 4ft x 4ft etc.

Long fastenmaster s headlok screws work great for screwing down 2xs or sheathing over thick foam. Retroplus roof board is an expanded perlite mineral aggregate board. The panels need to fit together tightly to help prevent warm air from leaving the top of the building. Johns manville r 6 common.

Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to retroplus roof board on one side and a glass reinforced facer on the other. After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on your roof. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. They keep your home at a comfortable temperature without the need to crank your heat.

To drain and insulate dead level roof decks. 1 in x 4 ft x 8 ft ap foil 1 faced polyisocyanurate foam board insulation item 101645 model 90001019. 1 in x 4 ft x 8 ft. Rigid roof insulation board.