I'm doing detailed geometry for an office building for CBECC t24 2013 that is currently a shell with interior spaces tbd. I want to take full credit for daylighting and lighting. The windows have a head height of 10-11 feet so the secondary sidelite zone will be 20-22 ft into the perimeter. General guidance is to set perimter thermal zones at 15 feet. In Sketchup Open studio setting the thermal zones at 15ft creates solid walls when I generate the SDD file for import into CBECC. How do I best configure the model to maximize the daylight? Is there a way to designate thermal zone walls that allow light transfer that will carry through into the CBECC model? would I be better off setting my thermal zone boundary walls at the 20 ft mark instead of the 15 ft mark? other approaches? Or does cbecc ignore the thermal zone walls when determining daylight zones?
Question-and-Answer Resource for the Building Energy Modeling Community
