'Zero-Energy' Construction Crosses The Ocean

One of the most exacting building standards is making its way to the United States from Europe, reports The New York Times. Passive, or “zero energy,” houses maintain a comfortable interior climate without active heating and cooling systems, according to the Passivhaus Institut, which administers the standard. That is achieved through a system of interior and exterior air exchange, an airtight building envelope and energy-saving appliances, among other things.  Read the full article here.

Source: The New York Times.