Why are R-Tight® SIPs so efficient?
Several reasons. In conventional stud-built houses, the studs break up the insulation (usually the pink fiberglass kind). In addition, no matter how careful the builder is when he installs the insulation, it is always difficult to get good seals around studs, wiring, electrical outlets, windows, doors, and the like. In a SIP house, the panels form an uninterrupted shell around the home. The seams between panels are sealed with expanding foam sealer, the wiring goes into a special `chase’ that runs through the panels, and window and door openings in the panels are carefully cut out and framed in.