Are the high efficiency claims valid?
A.) Yes. Four key factors make the average SIP building very energy-efficient. 1.) Polyurethane foam provides higher insulating value per inch than traditional fiberglass or cellulose 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 co
