The LEED v4.1 requires area input for which the lux levels are within the range for 9am AND 3pm.

From my understanding of the credit language, it is required to average the 9am values for...

If anyone has used IES-VE's RadianceIES application for Daylight Simulation Option 2: Illuminance, what sky type within RadianceIES should be selected for demonstrating compliance?

...

Hi,

Internal zones which do not have any external facades nor any windows are required to be simulated for Option 2: Illuminance? I have several zones which are considered regularly...

Hello,

I am attempting to use passive strategies to deal with glare. I want to avoid using any kind of blinds. The credit language seems to suggest that I still need to simulate them even...

Dear All,

in what relates to this credit, LEED V4.1 allows credit achievement in projects where spaces have...

Hi,

We are working with a project that is not constructed yet (office building, Core and Shell). The building volume and facades have been decided, but the exact plan layout is not known...

We have a project pursuing LEED v4/4.1 that is surrounded by large existing pecan trees. Should we be including modeled trees in our daylight study? The challenge is that these are deciduous...

Are glare control devices required only on exterior glazing?

Let's say we have an office (regularly occupied) with a single window looking to a classroom and no exterior glazing. Does this...

Dear All,

I am an engineer at Inform Design (consulting practice based in Sweden), and we are working on a large office building project which aims to acquire LEED certificate.

I...

Does LEED require, in any analysis, that other surrounding buildings be created to simulate the sunlight reflections they can add?

e.g. occupant visual discomfort like glare can increase...