Foam Roof Boards

The panels need to fit together tightly to help prevent warm air from leaving the top of the building.

Foam roof boards.

Rigid foam insulation also known as insulating boards provide high r values. Retroplus roof board is an expanded perlite mineral aggregate board. Manufactured from lightweight foam control eps tapered expanded polystyrene eps roof insulation is a value engineered system that has been proven in new and reroof applications all over the country. Washer head extra long screws up to 18 in.

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. Tapered expanded polystyrene eps roof insulation was developed more than 30 years ago with a dual purpose in mind. Rigid foam is produced in various size panels 4 ft x 8 ft 4ft x 4ft etc. Insulating the roof with polyiso foam boards.

They keep your home at a comfortable temperature without the need to crank your heat. Attach to deck board. Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. Long fastenmaster s headlok screws work great for screwing down 2xs or sheathing over thick foam.

1 in x 4 ft x 8 ft ap foil 1 faced polyisocyanurate foam board insulation item 101645 model 90001019. 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. Johns manville r 6 common. The washer head style has good holding power.

Retrofitting an insulated cold roof. After the roof deck is prepared the rigid foam boards need to be cut to size to fit snugly together on your roof. To drain and insulate dead level roof decks. Rigid roof insulation board.

Types of insulating boards. Gba editor mike guertin apr 08 2015 09 38pm 15. 1 in x 4 ft x 8 ft. Install it anywhere from the roof to the foundation.