Insulating An Attic With Foam Board

Install it anywhere from the roof to the foundation.

Insulating an attic with foam board.

Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance. 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. Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings.

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. 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. Shop at lowe s to find the foam sheeting you need for your next insulation project. It is an excellent installation option for the attic because it is lightweight easy to work with and offers high r values.

Spray foam is a very expensive option however. Rigid foam insulation also known as insulating boards provide high r values. Installing foam insulation boards in the attic is no that hard and can save you money compared with professional installation. You can even place it under the foundation slab.

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. Add weatherstripping around the perimeter and a sweep to the door of a walk up attic. Affix rigid foam insulation to the attic side of the hatch or door. Foam board insulation in the attic can cut down on energy costs and simultaneously promote a more environmentally sound way of daily living.

Rigid insulation is one of the best tools to reduce your energy costs. You can use foam board in the attic. Polyisocyanurate is another option coming in as the densest and more expensive option for foam board.