Insulation & Air Sealing
It's easy to air seal the middle of the wall where there are no gaps, cracks, or joints. The edges are a different story, especially when one edge is wood and the other is concrete.
Regular walls just won't cut it anymore. Higher-achieving energy codes mean higher-performance walls, airtightness targets, and home energy rating system (HERS) scores. Here are six improvement targets to shoot for.