Curious the best way to calculate SF for spaces that have paint on the structure as well as baffles that hang below.
You rely on LEEDuser. Can we rely on you?
LEEDuser is supported by our premium members, not by advertisers.
Go premium forForum discussion
Curious the best way to calculate SF for spaces that have paint on the structure as well as baffles that hang below.
LEEDuser is supported by our premium members, not by advertisers.
Go premium forTo post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.
Where do I find the CRI of a lamp?
Do task lights need to meet all the lighting quality requirements?
How limiting are the reflectance values in the finish requirements?
Do operable shades count as lighting controls?
Does having multi-circuit lighting count as providing multiple lighting levels?
How do I calculate an illuminance ratio?
Is Option 1 achievable for open office spaces?
What lighting controls are required for a conference room with a presentation screen?
Kera Lagios
High Performance SpecialistEHDD
16 thumbs up
October 4, 2019 - 2:56 pm
Hi Carina,
This is definitely a tricky question. I don't have a simple answer for you.
I would simplify the ceiling to just be the projected area of the ceiling (in other words, the ceiling area without the structure and baffles), and reduce the LRV by a factor to compensate for the light losses caused by the baffles, etc.
As a lighting designer, to figure out that factor, I would lean on lighting calculation software like AGI to help figure this out, but I don't know if that is an option for you.
To do so, you would do a lighting calculation with the baffles and structure and make note of the light levels. You could then run the same model with a false/flat ceiling, and then iteratively adjust the ceiling LRV in the model until the light levels reach the same levels as with the original model. The ceiling LRV of that matching calculation would give you a value for what the resultant LRV is given all of the losses in the ceiling geometry.
I don't have a great solution other than that.