Mich. Admin. Code R. 408.31069 - [Effective 8/29/2025] Air leakage
Rule 1069. Section R402.4.6 of this code is amended to read as follows:
R402.4.6. Electrical
and communication outlet boxes (air-sealed boxes). Electrical and communication
outlet boxes installed in the building thermal envelope shall be sealed to
limit air leakage between conditioned and unconditioned spaces.
Notes
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