COMFORTBATT R-23 Attic and Wall 39.8-sq ft Unfaced Stone Wool Batt Insulation (15.25-in W x 47-in L) (8-Pack) Model #RXCB551525. Find My Store. for pricing and availability. 471. ROCKWOOL. COMFORTBATT R-30 Attic and Wall 30.7-sq ft Unfaced Stone Wool Batt Insulation (23-in W x 47-in L) (4-Pack) Model #RXCB3023.

If you check with the North American Insulation Manufacturers Association, they’ll assure you that fiberglass or mineral wool is definitely your best choice for attic insulation. Spray Foam Attic Insulation. Spray foam offers the best attic insulation performance available. Choose from two types: closed-cell and open-cell, aka 2-pound and ½-pound, respectively. They sport insulation values of approximately R-6.5 and R-3.6 per inch, respectively.

Insulation saves money on heating and cooling bills and helps to keep the attic temperature where it should be. In the winter, a thick layer of insulation helps keep the heat in the house and out of the attic and helps your house stay cool in the summer. In addition to insulation, you need to seal air leaks.

Attic Insulation Costs. According to Home Advisor, insulating your attic can cost between $1700 to $2100. The main factors that impact the cost are: Type and material of your insulation; Square footage of your attic; Contractor or insulation installer’s fee

Attic insulation can be constructed from a wide range of materials, including cellulose, fiberglass, mineral wool, liquid polyurethane, and polystyrene. Cellulose was used regularly in building...