Updated green codes would add $14,000 to the cost of new homes, Energy Department officials said Friday, adding a significant burden to the already sky-high cost of housing. A new analysis released by ...

Illinois' new energy conservation code is mostly based on the 2021 IECC, which the U.S. Dept. of Energy has found can yield an average 9.38% site energy savings on average. Illinois implemented a ...

An international organization that develops model codes and standards for new construction is quietly preparing an energy conservation code that opponents argue is a backdoor climate initiative and ...

Energy codes dictate insulation and air sealing for new homes. Here is what you need to know about compliance.

An international group that develops building codes adopted by a wide swath of U.S. cities and counties abruptly pared back a plan to force new homes to be more climate-friendly. The International ...

Add Yahoo as a preferred source to see more of our stories on Google. The Legislature passed two bills this session limiting the ability of local cities to implement energy conservation and efficiency ...