*Attention:* The IES website will be temporarily unavailable on May 14th due website maintenance. We apologize for any inconvenience and will provide an update closer to the time. Thank you for your continued support of the Illuminating Engineering Society.
DonateJoinMy IES

effective floor cavity reflectance, ρfc

[7.3.3.16] A number giving the combined reflectance effect of the wall and floor reflectances of the floor cavity.

« Back to Definitions Index