If a building fails a blower door test, what is the recommended action?

When a building fails a blower door test, the recommended action is to identify and address leaks or deficiencies. This testing method measures the air leakage rate of a building's envelope, providing crucial data that helps understand the building's energy efficiency and indoor air quality.

Addressing leaks or deficiencies is essential to improve the overall performance of the building. Failure to fix these issues could lead to increased energy costs, moisture problems, and reduced comfort for the occupants. By identifying specific leak points, such as around windows, doors, and other penetrations, remediation strategies can be implemented to enhance the building’s air barrier system, thus ensuring it meets the desired performance standards.

The other options do not promote necessary action to resolve the identified issues. Continuing with the existing air barrier without addressing leaks can perpetuate inefficiencies. Ignoring the results undermines the purpose of the test and can lead to significant long-term consequences. Performing additional tests without making changes would be an ineffective use of resources, as it would not yield improvements or solutions to the identified problems. Therefore, the focus on identifying and rectifying deficiencies is the only viable path forward after a failed blower door test.