The annual energy needed to heat a Passive House is only 15 KWh/m2 versus the Vancouver average of 160 Kwh/m2. This equals the heating power of 10 tea lights or the body heat of 4 people to heat a 200 square foot room in the middle of the winter.
A very well insulated and air tight envelope ensures a uniform and constant indoor climate, with the comfort ventilation system providing clean, pleasantly warm and fresh indoor air.
The high energy efficiency radically reduces CO2 emissions and therefore significantly contributes to climate protection and preservation of limited resources. The remaining energy demand in Passive Houses can be completely covered by renewable energy sources.
The straight forward, performance based Passive House Standard results in an uncomplicated building that is user friendly and easy to maintain. The construction cost may be 5-10% higher for a Passive House in Vancouver, but with increasing utility prices a 90% saving on your heating/energy bill will pay off quickly.
an exceptionally high level of thermal insulation with an effective R-value of approximately R35-40 for a wall in Vancouver
super insulated triple glazed low-e windows and well insulated frames
no penetration of the insulation layer by highly conductive materials creates a thermal-bridge-free construction
air tight building envelope with 0.6 or less air changes per hour
comfort ventilation with highly efficient, or greater than 75%, heat recovery