In this episode of the R-Value podcast, host Ken Allison and special guest Sam Myers from Retrotec discuss the intricacies and importance of blower doors in testing a home’s air tightness. They delve into common mistakes made during blower door tests, such as incorrectly matching the fan range to the gauge, and highlights advancements in technology, like digital manometers introduced in the mid-90s, which improved the testing process through color coding and touch screen features for easier identification and use​​​​.