How are structural insulated panels made?
Structural insulated panels are considered a composite building material. They’re formed by sandwiching two layers of structural board and applying an insulating foam layer in the center. The structural board may be sheet metal or oriented strand board (OSB). The foam is typically an expanded polystyrene foam (EPS), extruded polystyrene foam (XPS) or polyurethane foam. These panels also help residential builders reduce their framing labor needs by as much as 55%. Sharing the same structural properties as I-beams, they are sturdy enough to be used in the construction of floors, roofs, and exterior walls. Structures NW helps building professionals and owner-builders create building envelopes that perform above energy code requirements. These building envelopes easily meet the energy saving criteria for building programs like Energy Star, Earth Advantage, LEED for Homes, Advanced Energy Design Guides, Core Performance and LEED-NC. What You Should Know About Green Building Products Energy