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A photo of three men performing a blower door test.

West Virginia Mandatory Blower Door Testing for New Residential Construction

May 20, 2022

The West Virginia Secretary of State released this notice of filing, which states that West Virginia’s new 2015 IECC codes package in House Bill 4141 will be effective August 1, 2022. This change includes the provision of mandatory blower door testing for new residential construction with a minimum requirement for 5 air changes per hour (ACH), in lieu of 3ACH.

This is a huge win for the home performance industry in the Mountain State. This change is the result of an intense stakeholder process facilitated by the WV Fire Marshall Ken Tyree, including members like the WV Home Builders Association, Northeast Energy Efficiency Partnership (NEEP), and the WV Office of Energy.

Blower door testing is the foundation of understanding for the impact of air leakage in and out of homes. Using sound building science and innovative testing data, West Virginia is one step closer to more safe, comfortable, and efficient homes.


  1. William Watkins on May 2, 2023 at 10:52 am

    I would like for builders to know My company, Hot Shotz Home Performance Services, conducts blower door and duct blaster testing in portions of MD, WV, and PA. I provide pre-test education and help locate and seal leakage sites if necessary. I have conducted home energy audits since 2007 and code compliance BD & DB tests since 2012. I would appreciate any help getting the word out.
    Thank You!

    • Katie Miller on May 4, 2023 at 12:23 pm

      Hi Mark,

      Thanks for your comment! So glad to hear your business is providing these services! We will definitely keep you in mind for referring folks who are looking for blower door testing.

      In the meantime, be sure you are receiving our newsletter to stay up to date on what is happening in your state across the country!

      Thanks again,

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