Dear All,
For baseline exterior lighting power, ASHRAE 90.1 instructs us to accept
0.2 W/ft2 for each illuminated wall or surface.
If we have a glass curtain walled office building with lighting provided
by luminaires mounted on facade spandrels, what is the definition of
illuminated wall? Spandrels + glass, or just spandrels?
Thanks,
Omer Moltay
