Spray Foam Insulation: Spray foam insulation is known for its excellent air sealing properties and high R-value. It is applied as a liquid that expands and hardens, filling holes and forming a seamless barrier against air leakage. Spray foam insulation, according to tests conducted by the United States Department of Energy, can cut energy use by up to 20%. Furthermore, it has great moisture resistance, making it an excellent choice for humid climates or leak-prone areas.

Blown-In Cellulose Insulation: Blown-in cellulose insulation, derived from recycled paper or plant fibers, is a popular option for attic restoration. It is a low-cost solution with excellent thermal performance and soundproofing qualities. According to research conducted by the North American Insulation Manufacturers Association, cellulose insulation has a lesser environmental impact than other insulating materials. It is also sprayed with fire retardant chemicals, which ensures safety in the event of a fire.

Fiberglass Batts Insulation: Fiberglass batts are a popular insulation option for attics. They are reasonably priced and simple to install, making them popular among homeowners who prefer to do it themselves. Fiberglass batts provide strong thermal resistance, but appropriate installation is required to reduce air gaps and assure peak performance. According to the Insulation Institute, fiberglass insulation can cut heating and cooling expenses by up to 30%.