Foam insulation is a type of thermal insulation made from various materials, primarily polyurethane or polystyrene. It is designed to reduce heat transfer, keeping buildings warm in winter and cool in summer. Foam insulation can be applied in different forms, such as spray foam, rigid boards, or foam sheets, making it versatile for various construction needs. This insulation material is known for its excellent air sealing properties, which help prevent drafts and improve energy efficiency. By minimizing energy loss, foam insulation can lead to lower heating and cooling costs, making it a popular choice for both residential and commercial buildings.