Attic insulation does not block air flow path between roof overhang vents and ridge vents. Radiant barrier is especially effective when ductwork is in the attic. The insulation is at least 10 inches deep and evenly distributed. The wall insulation is a type that fills every nook and cranny, such as wet-blown cellulose. No skylights except solar tubes.
Window frames are wood, vinyl or fiberglass.
The Right Interior Healthy Materials Using the right materials can improve indoor air quality and increase comfort. The flooring is mostly a hard surface, such as concrete, tile or wood. Other flooring material are natural wool, jute, seagrass, cork or true linoleum. Bath has exhaust fan vented to outside. Cooktop has exhaust fan vented to outside.