Forum discussion
Hi everyone,
I'm having trouble finding datasheets with the reflectance values for the project I'm working on. Do you think using standard values expressed for example in this website http://lighting-materials.com/ would be accepted by LEED?
Thanks in advance!
Inês
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TODD REED
Energy Program SpecialistPA DMVA
LEEDuser Expert
890 thumbs up
April 5, 2017 - 9:26 am
Yes, typically you can use the standard values, of 40 floor, 70 wall , and 80-90 ceiling and you will be fine.
Daniel Glaser
PrincipalLightStanza
LEEDuser Expert
16 thumbs up
April 5, 2017 - 11:44 am
Hi Ines,
LEED V4 requires using the IES LM-83 methodology for annual calculations. In Section 2.2.10 it states:
Use actual surface reflectance values for walls, floors, ceilings, and furniture. If actual reflectance values are not know, use the following default reflectance values.
20% floor
50% walls
70% ceiling
50% furniture