Insulating An Attic With Foam Board

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.

Insulating an attic with foam board.

Installing foam insulation boards in the attic is no that hard and can save you money compared with professional installation. Often the r value of fiberglass insulation is too low and requires the rafters to be retrofitted making foam board a better choice. 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. 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. Foam board insulation would be a more economical especially if you are supplying the labor see photo. 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. Foam board insulation in the attic can cut down on energy costs and simultaneously promote a more environmentally sound way of daily living.

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. Affix rigid foam insulation to the attic side of the hatch or door. Shop at lowe s to find the foam sheeting you need for your next insulation project. The superattic system creates a continuous air and insulation barrier directly beneath the attic roof with no thermal bridging to compromise energy performance.

It is an excellent installation option for the attic because it is lightweight easy to work with and offers high r values. 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. Install it anywhere from the roof to the foundation.

You can even place it under the foundation slab. Polyisocyanurate is another option coming in as the densest and more expensive option for foam board. Attic hatch or door.