Passive House International Standard
Ultimate Energy Efficiency
The Passive House International Standard targets energy efficiency, and can be applied to any sort of building, from residential to commercial, from a suburban single-family home to a downtown skyscraper. It achieves this standard with thicker walls which provide more insulation, careful design which orientates the building to provide the most solar gain, and triple-pane windows and doors. These high-performing windows collect heat from the sun in winter and are shaded externally in the summer. Passive Houses also tend to have simple, cost effective mechanical systems that provide a high rate of air exchange, providing a high level of comfort.
The International Passive House (Passivhaus) Standard requires:
- Space heat demand max. 15 kWh/m2a OR heating load max. 10 W/m2
- Pressurization test result at 50 Pa max. 0.6 ACH (both over-pressure and under-pressure)
- Total Primary Energy Demand max. 120 kWh/m2a
*All heating and cooling calculations are based on the net usable floor area of the building. If cooling (air conditioning) is required, the annual cooling energy demand must also not exceed 15 kWh/m2.
We chose to build Passive House because:
Better buildings can transform our energy consumption, making our country more environmentally sustainable and our communities more resilient. Energy consumption is by far the greatest environmental impact of buildings, and Passive House addresses that issue head on, reducing consumption more than any other building standard.
Despite the unsurpassed quality & comfort, living in a Passive House is affordable and here are the reasons why:
Lower energy bills
All aspects of the building are optimized for energy efficiency, including lights, appliances and building systems. As a result, residents of a certified Passive House can expect vastly reduced overall energy bills. Heating and cooling loads are generally about 10% of the average existing building, and dramatically less than new construction using other building standards.
Reduced maintenance costs
A simple, high quality building costs less to maintain, particularly when there are fewer mechanical systems. The robust and high quality components will last longer and require less ongoing maintenance.