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DESCRIPTION USES Rockwool COMFORTBATT Thermal Home Insulation keeps your home warm in the winter and cool in the summer for more comfortable living all year ’round. Installing also helps you save money year after year by reducing the cost of your heating and air conditioning and a house that uses less energy is a house thats easier on the environment. Size Sq Ft/Pack Batts Per Bag 23″ x 47″ 37.5 5 15.25″ x 47″ 39.8 8 Where to Use Rockwool COMFORTBATT Energy savings begin with a properly insulated attic and exterior walls but there are other applications that can make a big difference in your home’s comfort. Insulating the exposed concrete walls in your basement and heated crawl spaces are effective ways to improve the energy efficiency of your home. Rockwool Insulation is easy to cut and install. Its unique stonewool composition density and friction-fit batts help you or your contractor prevent any gaps that can result in energy loss. R-Value: 23