Passive House Envelope Testing

Passive House Envelope Testing by AirXpress Testing measures the airtightness of a building’s envelope, ensuring your structure meets stringent energy efficiency and sustainability standards. By detecting and addressing air leaks, this testing helps improve the building’s thermal performance, enhances HVAC efficiency, and reduces overall energy consumption. Properly conducted Passive House Envelope Testing not only promotes a comfortable indoor environment but also supports long-term cost savings and environmentally responsible building practices.

Why Passive House Envelope Testing is Necessary
Passive House Envelope Testing is essential for achieving high energy performance and maintaining indoor comfort. Even small leaks in the building envelope can result in significant energy losses, increased utility costs, and higher greenhouse gas emissions. By identifying these areas, building owners can implement corrective measures to seal gaps, ensuring the building maintains consistent thermal conditions. Additionally, this testing improves indoor air quality, reduces drafts, and supports Passive House certification requirements.

How the Testing is Conducted
Our testing process uses specialized equipment to accurately measure and locate air infiltration and exfiltration in the building envelope. By depressurizing and pressurizing the structure, we determine the exact rate of air leakage and pinpoint problem areas. Whether for residential, commercial, or industrial projects, AirXpress Testing ensures buildings meet Passive House standards, comply with energy regulations, and achieve optimal performance, durability, and comfort.

Supported StandardsDescription
EN 13829 / ISO 9972Thermal performance of buildings – Determination of air permeability of buildings – Fan pressurization method
ASHRAE 62.1 & 90.1Ventilation and energy efficiency standards for building envelopes
Passive House Institute (PHI) StandardsStrict airtightness requirements for Passive House certification
ASTM E779 / ASTM E1827Standard test methods for air leakage of building envelopes

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