Traditional framing makes buildings vulnerable to energy loss. Walls and ceilings of a conventionally constructed building can contain thousands of cavities, and each must be adequately insulated to stop air flow. Any imperfection and energy loss is sure to occur.
A building's wood frame also conducts heat readily, from its interior to exterior and vice versa, via thermal bridging. Studs and rafters act like a heat pump, slowly but surely robbing the building of energy.
SIPs solve the air leakage, infiltration and thermal bridging issues that plague traditional wood-frame construction. The cavity is filled with solid EPS that's permanently adhered to the OSB facing. Because there is no wood member between the inner and outer OSB, a SIP offers little to no surface area for heat conduction.
Through testing and real world experience, SIPs have been consistently proven to reduce heating and cooling requirements by 50% or more.