How To Install Rigid Foam Insulation In Attic Rafters

Foam board insulation in the attic can cut down on energy costs and simultaneously promote a more environmentally sound way of daily living.

How to install rigid foam insulation in attic rafters.

Alternate fasteners may be used with the type and length as recommended by their manufacturer for securing foam plastic insulating sheathing. Fasten foam insulation boards to the interior of the rafters using screws or nails with 1 inch minimum washers or caps. R value of 7 in 1 inch 97 closed cell foam. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

Class i e 84 fire retardant meets building code spec. Installing rigid foam insulation there s two ways you can go about with foam board insulation. Fasteners should be long enough to penetrate in to the rafter a minimum of inch. Spray foam insulation that s convenient and easy to use.

Installing foam insulation boards in the attic is no that hard and can save you money compared with professional installation. Snap a chalk line between the length measurements for use as a cutting guide. You can use a utility knife to cut using the same cut and snap process you use with drywall. Affix rigid foam insulation to the attic side of the hatch or door.

Firstly you can apply it directly onto the house s concrete walls with the help of a construction adhesive that will hold it in place. Foam insulation boards are the best material with which to work when undertaking a do it yourself project because foam. Use closed cell foam it green for attic rafters. Measure the length and width between two rafters in your attic and transfer the measurements to a 4 ft by 8 ft of rigid foam insulation board.

A brief snippet of how and why i used rigid foam insulation for some areas of the tiny house. The best attic insulation. How do you install rigid foam board. Use a chalk line or t square to mark where it needs to be cut.

Measure the space between rafters and cut the board to fit. For the foam to boards prefer screws through a specialty plastic washer that holds it tight attach through side for first one closest to roof for foam on foam they make a special one piece plastic push in one that works great for the final layer over the rafters a long enough screw similar washer used in the first one. A table saw will also cut the board but it. Get your kits the easy to use spray foam kit.