Michigan Blower Door Test Code

It is also required for additions and major renovations. Michigan energy code n1102 4 1 2 and n1101 3 1 additions alterations renovations or repairs. A blower door test is performed to measure the exact air tightness of a home.

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To pass the blower door test in the prescriptive path in the new michigan energy code requires a home to be equal to or less than 4 ach50 air changes per hour with the blower door depressurizing the home to 50 pa.

Michigan blower door test code.

So what is blower door testing. With a new code on the horizon which will require all new construction homes to have a blower door test finding a certified professional to conduct the testing is a challenge many builders will face in 2016. As of february 2016 all new homes alterations and additions are required to have a blower door test performed. For new homes constructed in michigan.

What is blower door testing. The code states that all houses built in michigan must have a blower test to prove the house has an infiltration rate of 4 ach air changes per hour at 50 pascals. Feel free to call text or email with questions. A blower door test determines how airtight a home is.

With the 2015 international energy conservation code iecc blower door testing is now a mandatory requirement on all new construction for residential homes. Bpi certified professional conducting blower door tests in all of northern lower michigan and the eastern upper peninsula. The new code requires homes to be at or below 4 00 ach50 air changers per hour with a blower door running at 50 pascals. How do you get your home to pass.

The state of michigan recently passed a new version of the state energy code which is based on the 2015 iecc but with some state specific amendments. A blower door test is now required for every new home in michigan that pulled a permit after february 8 2016. Icc digital codes is the largest provider of model codes custom codes and standards used worldwide to construct safe sustainable affordable and resilient structures. On page 447 michigan energy code n1102 4 1 2 of the 2015 michigan residential code book states that the building or dwelling unit shall be tested and verified as having an air leakage rate not exceeding 4 air changes per hour.

This is done to make sure there s no major flaws in the thermal envelope and to ensure the efficiency of the home. The new code went into effect for all homes permitted after february 8 2016. Testing shall be conducted with a blower door at a pressure of 0 2 inches w g.