This analysis focuses on the home weatherization efforts of NCCC AmeriCorps members. Weatherization increases the energy efficiency of homes, producing environmental, economic, and health benefits for households and society. NCCC weatherization activities vary by project but have included installing energy efficiency devices, retrofitting for energy efficient lighting, applying rigid insulation and sheetrock to basement walls, putting flashing around chimneys to block air flow, installing gaskets on exterior doors, measuring and installing interior storm windows, insulating pipes, covering soffits, air sealing with foam, and insulating attics with cellulose insulation. While the mix and scale of these measures vary by project, weatherization efforts generally decrease energy consumption, leading to energy cost savings. Weatherization can also produce health benefits as homes are sealed against outdoor air pollutants.