Building Codes Assistance Project

The 2009 edition of the International Energy Conservation Code (IECC) -- the national model energy code of choice for states, cities and counties that adopt codes -- is published and now available for adoption by jurisdictions.

The 2009 IECC will produce approximately 15% in energy efficiency gains compared to the 2006 edition, according to the U.S. Department of Energy (DOE). As a result, homes and commercial buildings, including schools and hospitals built in jurisdictions that adopt the 2009 IECC, will consume less energy and help the environment by reducing emissions associated with building operation.

New energy efficient provisions in the 2009 IECC include:

• Improved window and skylight efficiencies for homes constructed in "warm humid" and "hot humid" climates which lower energy costs during cooling periods.

• An increase in insulation R-values for walls, floors and basements in cold climates to achieve greater heating and cooling savings.

• High-efficiency light bulbs as a requirement in at least 50% of permanent lighting fixtures in new homes.

• New separate requirements for high-rise condominiums and apartments regarding commercial insulation and window tables.

• Radiant heating requirements for unenclosed public spaces;

• Clear depiction of mechanical provisions regarding when and where a Demand Control Ventilation strategy is required.

To purchase the 2009 IECC and other International Codes, click here.