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Old 09-16-2002, 02:57 PM   #17
Keraptisdm
Elminster
 

Join Date: August 23, 2002
Location: Near Pittsburgh, Pennsylvania
Age: 62
Posts: 410
Lighting reflectance properties. The average white ceiling (suspended acoustical tile) has a reflectance of 80%. The high reflectance reduces the number of light fixtures needed to illuminate a space. Typical commercial reflectance values are: Ceiling 80%, Walls 50%, Floors 20%. Combine these properties along with the "roominess" aspect mentioned by others, and you now have your answer.
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