The Five Key Principles of a Passive House

Passive House standards are achieved by adhering to five core design principles: 

  1. Superior Insulation:

    A highly insulated building envelope minimizes heat transfer, ensuring consistent internal temperatures. 

  2. Airtight Construction:

    Sealing all leaks and gaps in the building envelope prevents air and moisture loss, enhancing comfort and air quality. 

  3. High-Performance Windows & Doors:

    Triple-pane, high-efficiency windows and doors are strategically placed to optimize solar gain in winter and minimize heat loss. 

  4. Thermal-Bridge-Free Design:

    Continuous insulation and careful design eliminate "thermal bridges"—areas where heat can easily escape or enter the building. 

  5. Mechanical Ventilation with Heat Recovery:

    A ventilation system provides continuous, filtered fresh air while recovering heat from exhaust air to pre-warm incoming fresh air, reducing energy needs for heating. 

  • Benefits

    Exceptional Comfort: Constant desired temperatures with no drafts or uneven surfaces. 

    Healthy Indoor Air Quality: Continuous, filtered fresh air reduces airborne pollutants. 

    Energy Savings: Up to 90% less energy is used compared to typical buildings. 

    Reduced Energy Costs: Lower heating and cooling bills lead to long-term savings. 

    Quieter Interiors: The airtight and well-insulated structure provides superior acoustic insulation. 

  • Performance Standards

    The Passive House standard is performance-based, meaning it sets specific targets for a building's energy performance. For example, the international standard limits: 

    Space heat demand: Maximum 15 kWh/m² per year. 

    Airtightness: Maximum 0.6 air changes per hour at 50 Pascals (ACH50). 

    Total Primary Energy Demand: Maximum 120 kWh/m² per year. 

  • Design then Build

    Let’s bring your dreams of comfort, improved air quality, and a calming quiet to life in your home with beautiful, sustainable, and smart materials. Let’s make a difference by designing smarter, using tested products, and building better into the future with qualified Passive House certified builders. Learn more about Passive House on Emu’s FAQ page.

  • Passive House Fundamentals

    To read more about Passive House, click below:

  • Code Adoption

    Building codes around the country are implementing Passive House. The Passive House pathway is currently making its way through the the California Legislature.

  • Fire Resilience

    Better protect your building and learn how to build back after a climate disaster.