Recessed luminaires installed in the building thermal envelope shall be all of the following:
- IC-rated.
- Labeled as having an air leakage rate of not more 2.0 cfm (0.944 L/s) when tested in accordance with ASTM E 283 at a 1.57 psf (75 Pa) pressure differential.
- Sealed with a gasket or caulk between the housing and interior wall or ceiling covering.