SSc8 includes a limitation in terms of the total initial designed fixture lumens emitted at an angle of 90 degrees or higher from nadir (for example, 2% for LZ2). Our project includes a number of...

We have a 2 m. high brick wall running all around out site. This wall belongs to the property so it is within the site boundary and the site boundary runs exactly along the outside surface of the...

We have to document that, for LZ2, max. 2% of initial fixture lumens are emitted at an angle of 90 degrees of more from nadir.

In your experience how would you achieve this? We have the...

Our project is in an urban site; the LEED boundary goes beyond the property line and sometimes the curbline. The presence of city-owned and operated street lights within our LEED boundary pretty...

I have a dumb question - when they ask for Initial fixture lumens per lumenaire, do they want fixture output lumens or the...

Hi all, I am working on a residential multi-dwelling building. For a residential building it is impossible to control or decide the interior lighting for the apartments. Is this credit therefore...

Question on LEED NC 2009 SSc8 - For Option #1 on the interior lighting portion, is having an occupancy sensor alone installed on fixtures that have a direct line of sight sufficient to meet this...

The site boundary of our building is lined with quite tall and dense trees. Should these be incorporated into the footcandle calculations? If the trunk of the tree is inside the boundary (but the...

Does anyone have an experience with Ecotect in exterior lighting calculations? Since we have already created a sophisticataed model of the building in Ecotect for various other credits, and since...

Does anyone have experience with a campus dorm application for Interior Building Lighting - Option 2? I don't think the campus wants to pay for automatic shades for all the resident rooms, much...