Builders have used exterior air/thermal barriers to control moisture in commercial construction for many years. Why not build houses this way?

The energy required to heat domestic hot water in multifamily buildings can be cut by 11% just by installing a simple, off-the-shelf device: the aquastat.

A Web-based tool makes it easy to compare the thermal performance of alternative wall systems.

You already know that unvented attics can work well in hot climates. Attics can be built without vents in cold climates, too.

How much fuel does it take to heat the average low-income multifamily building in New York City?
 

The Health House standards developed by the American Lung Association have recently been put to the test in constructing 27 affordable new Midwestern homes.