Mich. Admin. Code R. 408.30547d - [Effective 8/29/2025] Building thermal envelope
Rule 547d. Section N1102.4.6 of this code is amended to read as follows:
N1102.4.6 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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