I´m planning to approach this credit through the prescriptive path but I´ve been having some difficulties finding the Tvis for the glass. The manufacturer is providing me the spectrophotometric characteristics of the glass which contain the LT%, RLe% and RLi%. Does anyone know if the LT is the same VLT?
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Jill Dalglish, PE
Lighting EngineerMKK Consulting Engineers
LEEDuser Expert
440 thumbs up
March 8, 2011 - 11:09 am
If the product data sheet does not list VLT anywhere and the LT values are between 15 and 70% or so, I would assume this is the light transmission value. I'm guessing that RLe% and RLi% is reflected light (exterior) and reflected light (interior).
Eddy Santosa
Director of SustainabilityDBR Engineering Consultants
376 thumbs up
March 8, 2011 - 7:19 pm
I will suggest to call the manufacturer or check in Window 5 database.