Technology has become integrated into our homes with devices such as networked doorbells, smart thermostats, and wireless light bulbs.
Study of homes in Gainesville, Fla., quantifies impact of codes on energy efficiency
Code improvements have led to a 4 percent decrease in electricity consumption, and a 6 percent drop in natural gas.
A study by economists Grant Jacobsen of the University of Oregon and Matthew Kotchen of Yale University compared monthly electricity and natural-gas bills of 2,200 Gainesville, Fla., homes built three years before and three years after Florida tightened its home-building code in 2002. They found that homes built after the change consumed, on average, 4 percent less electricity and 6 percent less natural gas. The improvements stemmed from several actions, including using less-leaky air ducts, more-heat-resistant windows, better insulated attics, and certain white roofing products.