Fiberglass insulation is a very cost effective and energy efficient way to provide an increased level of comfort within your home. Insulation reduces heating and cooling costs by expanding the insulating value of walls, ceilings, and floors. This keeps your home warmer in the winter months and cooler in the summer. As New Hampshire's largest single location dealer of fiberglass insulation, we are proud to offer R11 through R38 in both 16" and 24" widths, and in either Kraft faced or unfaced.

If you need installation services, give us a call and we will put you in touch with a quality, experienced installer.

Dow EPS (extruded polystyrene) insulation is a foam insulation board with plastic film on both sides. It offers superior R-value, moisture resistance and high compressive strength. Plastic film reduces job site damage to the insulation boards. Styrofoam sheathing is recommended for wall sheathing in residential applications.

TUFF-R insulation features the highest insulation value of any foam sheathing. It is versatile, fitting numerous insulation and sheathing requirements, and can be applied to a variety of substrates. It features a patented high-performance foam core with radiant barrier-quality aluminum foil facers on both sides (one side reinforced). Air cannot penetrate the facers, which also minimize water and water vapor intrusion into the foam. Traditional OSB or plywood sheets, commonly used as sheathing beneath exterior siding, offer little insulating value. TUFF-R insulation is an energy-efficient alternative to maintain comfort while lowering heating and cooling costs.

National Fiber's Cel-Pak is a high quality, loose fill cellulose insulation for use in blowing caps in attics and in dense-packing wall cavities, either for retro-fit or new construction applications. Thermo-Cel contains a mixture of boric acid and ammonium sulfate for optimum smolder and surface flame retardancy.