If only a HORIZONTAL direct line of sight from 42" to the exterior window will ultimately allow an area to qualify as having a view, why have the discussion about glazing from 30" to 90" at all...

As I'm writing an e-mail to a client regarding the requirements for roll-out mats to meet LEED requirements, I'm questioning the following - if we have walk-off carpet installed over the entire...

Has anybody had any problems with the issue of exterior paint on exterior door frames? If the whole frame is painted with that paint, wouldn't a portion of it be considered "installed in the...

We have few interior rooms on our project that “borrow” daylight through relites facing exterior window. Can we include these rooms in our calculations?

If yes, is there a way to pursue...

Does the 63º H reduction procedure only apply to interior ledges?

Can one use interior windows for window bays though a glass vestibule?

What happens if my WFA*VT is too large because my...

We are trying to evaluate the best way of meeting this requirement through Option 1 - Simulation according to the latest (May 2011) Addenda changes (min. 10...

Has anyone been able to calculate the daylighting provided by Solatube's with the prescriptive method? If I use the spreadsheet, it comes up with a crazy number of 1 solatube daylights 65 sf -...

If you're having trouble knowing exactly how much uplight the light fixtures on your site are emitting there is a simple free tool for converting an IES file into an output that will display...

Hi, I am working on a project that is targeting IEQ 8.1. We are going to use option 1 to show credit compliance. For the simulation we use Relux. In relation to that a few thinks are not clearly...