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NC-v4 EQc7:Daylight

Reflectance

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Inês Marques
Architect
Greenlab
LEEDuser Basic Member
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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 Specialist
PA DMVA
LEEDuser Expert
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Wed, 04/05/2017 - 13:26

Yes, typically you can use the standard values, of 40 floor, 70 wall , and 80-90 ceiling and you will be fine.

Wed, 04/05/2017 - 15:44

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

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