R-24 open-cell spray foam. Spray foam has emerged as a highly superior and extremely effective insulator in recent years. This insulation technique creates an air-tight seal to help drastically improve the energy-efficiency and the year-round comfort of your home. LifeStyle Homes uses R-24 open-cell spray foam to create a protective bubble around your home’s living areas. In addition to being a superior insulator, it has the added perks of reducing noise, as well as blocking dust, pollen, and other airborne pollutants for a cleaner, more comfortable environment.