Spray foam insulation works through a two-liquid chemical reaction: an isocyanate (Side A) and a polyol resin (Side B) meet at the tip of a heated spray gun, react on contact, and expand up to 30 to 60 times their liquid volume before curing into solid polyurethane foam. That expansion lets the material fill every […]
Every month, homeowners hand over money to their utility company because their building envelope leaks air. The EPA estimates that homeowners can save an average of 15% on heating and cooling costs just by air sealing their homes and adding insulation in attics, floors over crawl spaces, and basements, according to ENERGY STAR. And here’s […]