1.) Polyurethane foam provides higher insulating value per inch than traditional fiberglass, cellulose or EPS foam insulation.
2.) There is much less wood framing within the typical panel, which increases total R-value.
3.) The foam is continuous and is not susceptible to the commonplace flaws found in average batt installations.
4.) Foam, when bonded directly to the exterior and interior wall "skins," doesn't allow air infiltration around it.
SIP-made buildings are vastly more energy-efficient, stronger, quieter, and draft free than older building methods likes stud framing with fiberglass batt insulation. Fiberglass is sometimes used for furnace filters because air moves through so freely. Polyurethane foam consists of billions of tiny cells with solid polyurethane cellular walls. Air cannot flow from cell to cell or between cells. Rigid foam insulation is used as solid component insulation in almost every industry concerned about heat transfer, such as the refrigeration industry, for its inherent efficiency and prevention of air movement. These attributes are built right into the SIPs panels. Less air movement or leakage translates into far fewer drafts, fewer penetrations of noise, much lower energy bills, and a significantly more comfortable and controllable indoor environment. You can have a quieter, more comfortable home and office.
