Passive houses…what are they?

My nephew is just starting to ready the land and build their dream home in the hills of PA.  I know he is concerned about constructing an energy-efficient house. One option is a passive house.  Sara Brown does a good job in this article with the history of the passive house, the basic concepts and the benefits including better indoor air quality.  The article is aimed towards remodel and new construction offering some valuable information.  I did not realize the passive house was a relatively new concept developed in 1996.  Read more…