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N1102.4.4 (R402.4.4) Recessed Lighting (Mandatory)
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Recessed luminaires installed in the building thermal
envelope shall be sealed to limit air leakage between conditioned
and unconditioned spaces. All recessed luminaires
shall be IC-rated and labeled as having an air
leakage rate not more than 2.0 cfm (0.944 Lis) when tested
in accordance with ASTM E283 at a 1.57 psf (75 Pa) pressure
differential. All recessed luminaires shall be sealed
with a gasket or caulk between the housing and the interior
wall or ceiling covering.
R 408.30547d
R 408.30547d
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