Structural insulated panels (SIPs) are a superior alternative to traditional framing in walls, roofs and floors. They consist of two facings of engineered oriented strand board (OSB) that are glued, under controlled factory conditions, to a core of expanded polystyrene (EPS) foam.
SIPs are structural, eliminating the need for studs in walls and trusses in roofs.
SIPs are insulating, forming a high-performance, continuous shield against cold and heat.
Finally, SIPs are framing, sheathing, insulation and air barrier in a single component. They're custom-manufactured offsite, and assembled at the job location.