How to Reduce Energy Use by 90% Using Passive House Design

Can the energy use of a house or building be reduced by 80 to 90 percent by design alone? Those familiar with Passive House building will know the answer is yes.

Passive House is a standard that aims to move the industry toward low-energy, high-performance design, using airtight construction in the structure's walls, windows, and roof. Passive Houses require only 10% of the energy that a standard home does. In this video, Alex and Sandra from BCIT's High-Performance Building Lab in Vancouver, Canada, demonstrate the five green building principles for a less energy-demanding home.
Using proper insulation to control the interior temperature
No air leakages to prevent hot air from coming in or out
No thermal bridges that allow for heat to travel through the walls and outside
Proper windows with triple-pane glass are oriented in the right direction so that the sun can provide heat in the winter and shade in summer.
A heat recovery ventilator (HRV) provides fresh air into the structure without letting the heat out.

Those five core elements are simple to understand and don't cost much more than a typical new build. Anyone can learn how to do it themselves.

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