Building a Passive House vs Conventional Home | Energy Efficient Homes
Comparison of a Passive House vs. a Conventional Home
Energy Efficiency Standards
Techniques and Materials
- Insulation: Passive Houses have very high levels of insulation (often called super-insulation), which helps to keep them warm in the winter and cool in the summer. Conventional homes have lower levels of insulation than Passive Houses, and the insulation is often installed to a lower standard, resulting in significant thermal gaps.
- Airtight Construction: Passive Houses are very airtight, which helps to prevent warm air from escaping in the winter (and intruding in the summer). Conventional homes are not as airtight as Passive Houses, so air can more readily move in and out of the house.
- Windows: Passive Houses are built with high-performance windows, which provide excellent insulation against heat gain/loss. Conventional homes are allowed to have a higher total energy loss, and therefore often have poorly insulated windows.
- Ventilation: Passive Houses have a heat recovery ventilation system, which continuously supplies the home with fresh, filtered air while also recovering heat from the exhaust air. Conventional homes have a simple ventilation system (if any) that does not provide continuous, fresh, filtered air, nor does it recover heat from the exhaust air.