Green Architecture Co, Ltd.

BWK is committed to providing premium Passive House design and consulting services.
To meet the requirements of certified Passive House projects, BWK has expanded its services to include professional airtightness testing. We use advanced testing equipment and are trained by German professional airtightness testing centers. All measurements are conducted in accordance with EN 13829.
According to Passive House standards, during the blower door test, the air change rate at either −50 Pa or +50 Pa must not exceed 0.6 ACH.

Benefits of High Airtightness in Buildings

Certified Passive Houses from Germany emphasize superior energy efficiency, thermal insulation, and construction quality.
In addition to verifying the performance of the ventilation system through blower door testing, high airtightness helps prevent condensation issues once occupants move in.

Advantages of High Airtightness

• Prevents structural damage caused by moisture

• Enhances indoor comfort

• Reduces infiltration of pollutants

• Saves energy

• Improves noise insulation

• Ensures better indoor air quality