One of the most important considerations when building or remodeling a house is that the envelope of the house is very air tight. This means there is no air coming in or going out through cracks in ...

“Passive house” can rank pretty far up the list of inadvertently misleading phrases. Realizing the momentous energy-saving potential of this approach requires plenty of active effort on the part of ...

I often say that homes and buildings designed to the tough Passivhaus or Passive House standards are "dumb buildings", because they do not rely on a bunch of smart stuff to save energy, just dumb old ...

Airtight and super-insulated, a passive house uses around 90% less energy. When the Canadian engineer Harold Orr and his colleagues began designing an ultra-efficient home in Saskatchewan in the late ...