Airtightness testing for passive house and high performance buildings
On-site airtightness testing is an essential part of creating a healthy, comfortable and energy efficient building.
Blower door testing is a diagnostic procedure for measuring a building's airtightness. It involves the use of a powerful fan mounted on an exterior door frame which depressurises or pressurises the building, causing air to flow through any gaps or leaks present in the building envelope. By verifying the rate of air leaking in a building, designers and energy modellers can ensure that the building will perform as predicted.
All buildings aiming for Passive House Certification require a blower door test to DIN EN 13829. Result of no less than 0.6 Air changes per hour @ 50Pa pressure is required for certification.
Homestar v5 promotes and rewards airtight construction with points available for conducting a test and achieving a good level of airtightness. Homestar designs hoping to model a home with anything less than the default 5 air changes per hour must also specify a blower door test.
Book a blower door test
To book your blower door test and for more information, leave us with your details and upload your plans and we'll be in contact to discuss further options.