ASHRAE 189.1, 8.4.1.2 requires us to have permanent shading devices. We are attempting to achieve the Daylighting credit 8.1. For the prescriptive method, does an interior or exterior shading...

I have several projects where the fenestration VLT...

I have completed filling out the template for the prescriptive path, including over 75% daylit space, when skylight and window areas are combined, yet the template summary is still showing '0...

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 -...

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...

Has anyone worked on an Air national Guard traning facility and been able to determine which areas are considered regularly occupied?
Training at the facility only occurs one weekend a...