Insulating An Attic With Foam Board

Foam board insulation would be a more economical especially if you are supplying the labor see photo.

Insulating an attic with foam board.

Foam board insulation is easy to cut with a circular saw with a masonry blade or scored with a utility knife and snapped like you would drywall. The superattic system utilizes proprietary silverglo rigid foam insulation panels to fully seal and insulate the attic directly beneath the roof rafters and directly inside the gable ends. Installing foam insulation boards in the attic is no that hard and can save you money compared with professional installation. Rigid foam insulation also known as insulating boards provide high r values.

Rigid insulation is one of the best tools to reduce your energy costs. Spray foam is a very expensive option however. Polyisocyanurate is another option coming in as the densest and more expensive option for foam board. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.

You can use foam board in the attic. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice. You can even place it under the foundation slab.

The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance. Affix rigid foam insulation to the attic side of the hatch or door. Attic hatch or door. Foam insulation board also comes with a foil backing and when the foil is just on one side of the board you have a decision to make regarding its orientation.

Typically sold as sheet insulation in a standard size of 4 x 8 foam insulation panels can help reduce energy costs get a handle on moisture control and more. To attach the insulation you can use screws with large washers a special adhesive made for adhering foam board insulation or for smaller pieces you can seal them in with caulk or spray foam. Install it anywhere from the roof to the foundation.