April 25, 2025: New homeowners Laura and JC were already comfortably settled in when we asked to come back and perform a final blower door test. We all enjoyed our visit, cups of freshly brewed coffee, and the work of testing, calibrating, and fine-tuning. Our crew today was led by Joe Paprocki from Trinity Environmental and aided by Joe Nagan from Home Building Technology Services. Both Joes are well versed in building science and specifically, testing homes to meet Wisconsin’s Focus on Energy New Homes Certification.

If our project passes, we will be awarded $1044

Here are the two Joes setting up the blower door equipment. This test is our second one: Joe P. was here back in December to make sure we were on the right track before insulation and drywall was installed. See my blog post Testing Our Work.

Here’s Joe P. fine-tuning the settings on the Energy Recovery Ventilator or ERV and verifying the Cubic Feet per Minute or CFM exhaust in the main bathroom.

Our crew: Joe Nagan, Amber Westerman, JC Love, Laura Love, and Joe Paprocki.

0.44 ACH @50Pa or 0.02 cfm/sf

Reader: this is a Very Good Score.

To understand the importance of a blower door test and the math behind it, see Getting the Most Out of Blower Door Test Results in Green Building Advisor.