Also known as SIPs. Most often made of a layer of foam sandwiched between sheets of OSB or plywood, Structural Insulated Panels are used for wall, floor, foundation, and roof systems. Compared to conventional framing, they provide enhanced insulation and decreased construction time. Alternative sheet materials include stainless steel, reinforced plastic, magnesium oxide, and fiber-cement. Some panels use a core of agricultural fiber such as wheat straw.
