Hi, My project will install an exterior viedo wall. May I know if this feature shall included in the calculation?

Can someone please explain where the 600W of Base Site Allowance in an LZ2 zone comes from? I know it comes from ASHRAE90.1-2007 Addenda i, but what does it mean?

If project uses boundary lights (even near to boundary also), it is very difficult to comply the credit requirements. Is there any solution to this issue?

We have insulated, translucent daylighting panels on the project, and I'm wondering if they will be considered "windows" for the interior lighting requirements of this credit.

Our project is a new building being built on an existing campus.

Hello All, I have a project that is required to meet its own jurisdictional dark sky ordinance.

Hi All, We are considering using some of up-lights to light some trees at night, I wonder if there is a way to calculate the lumens shielded by trees or by a canopy structure on top of it (very na

We have a 2 m. high brick wall running all around out site.

We are working on a rural site which will be classified as LZ1, so will not be allowed any light to be emitted above 90 degrees from nadir.

We have a govt. project that is building on a greenbuild site. The pre-development condition of the site is an LZ1. However, after the project is developed, there will be over 1m sq.