Foam plastic insulation products are modern materials for residential and commercial buildings that be made of a variety of plastics, including polyisocyanurate, polystyrene and polyurethane. They help architects, contractors and other construction professionals meet the stringent energy code standards of today and tomorrow for both new construction and renovation projects. Foam plastic insulation products are available in rigid boards or spray foam. They are durable, energy-efficient, and versatile. They can insulate and effectively seal gaps and close air leaks, which helps maintain indoor comfort and improve a building’s energy performance. When used in walls, roofs, and below-grade, insulation products are part of the assembly of materials that make up a building’s envelope.