A Utah builder achieves super-tight, efficient homes for first-time buyers who are green learning and cautious with a dollar.

In 2011, Bill Chaleff, of Chaleff & Rogers Architects, came to Community Environmental Center (CEC) with a challenging situation. Chaleff’s client, who owned a vintage mansion in Southampton, Long Island, wanted to repair the house and wanted a sustainable solution for insulating the exterior walls so that the original interior plaster faces of the walls could be preserved.