Forum discussion

Extent of daylight simulation model

October 25, 2019

Benjamin Weise

CSD Engineers

LEEDuser Basic Member

16 thumbs up

October 25, 2019

Hi there!

we are about to undertake the daylight simulation for a 50.000m² building. The way we understand the credit language, the whole building is to be simulated, except non regularly used areas such as utility rooms and staircases etc.

Are we understanding this correctly? We'd normally pick rooms, which are representative for the rest of the building and evaluate the buildings performance based on these rooms. Needing to model the entire building with all regularly spaces is a cumbersome task and not very practical. After all representative zones would depict the building sufficiently.

Can anyone confirm or disapprove of our guess?

Any thoughts are much appreciated. Thanks in advance!

Post a reply

Daniel Glaser

Principal
LightStanza

LEEDuser Expert

18 thumbs up

October 25, 2019 - 9:38 am

Hi Benjamin,

Yes, you can remove non-regularly used areas from your analysis. This can help both reduce the size of your calculation and remove non-daylit spaces utility rooms from your totals.

I think picking representative rooms and optimizing them can be helpful for the design of the building.

For the LEED calculation, it does require every space to be analyzed.

[A note about LightStanza: If you have a Revit model of this building and have marked its rooms, our software has a small plugin that reads in the entire geometry and rooms (which you can toggle off in the case of a utility room) and brings it into our application ready for LEEDv4 compliance. It's a single button to run a detailed LEED 4.0/LEED 4.1 report, and our software includes all details of IES LM-83 like blind modeling and operation, which our software completely automates. We have managed models this size before.]