Mich. Admin. Code R. 400.4411 - Natural light
Rule 411.
(1)
Every sleeping room occupied by residents shall have natural light from a
source which is equal to not less than 8% of the floor area for that room. A
skylight, louver, glass-blocked panel, or similar light-transmitting device
shall not be counted for more than 50% of the required area in place of
conventional windows and glass doors.
(2) Every habitable room shall have
artificial light capable of providing not less than 20 footcandles of
illumination at a height of 3 feet above the floor.
Notes
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