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Project with frits in some rooms

NC-v4 EQc7: Daylight
posted by Danielle Waters on Jun 26, 2019, 9:03 am

For daylight credit, do the frits suffice as sun shading? 

Or would these rooms of the building not qualify for the daylight credit or just be hindered during a simulation?

Last reply: Daniel Glaser, Jul 11, 2019, 4:30 pm

Solar Light Pipe simulation for option 1 method in LEED v4

NC-v4 EQc7: Daylight
posted by Praveenbabu Rajkumar on May 8, 2018, 7:33 am

of IES files for any location or time by defining the solar angle of incidence to the skylight.  There's some good info on the Insight Forum (search for 'SolaTube'), and I can send you more...

Last reply: Daniel Glaser, Jul 11, 2019, 4:19 pm

Recommened software for doing the Interior and Daylighting analyses.

NC-v4 EQc7: Daylight
posted by Jorng-ren Chern on Apr 10, 2018, 2:05 am

We’re in search for a suitable software to do the Interior and daylighting analyses for LEED V4. I asked LEED coach and they said the to do the LEED...

Last reply: David Scheer, Jun 26, 2019, 12:49 pm

Option 2: Inputting Direct and Diffuse Horizontal Irradiance in IES

NC-v4 EQc7: Daylight
posted by on May 9, 2019, 12:38 pm

I'm working in IES to evaluate the daylight LEED credit option 2 for a project, and one of the requirements is to input direct and diffuse horizontal irradiance. Does anyone know how this can be...

"Impossible" to achieve option 2

NC-v4 EQc7: Daylight
posted by Sarah Leenknegt on Aug 16, 2018, 5:49 am


We have made several daylight simulations with option 2 for different projects. So far, it seems nearly impossible to achieve even 1 point for this credit, mainly due to the 3000 lux...

Last reply: Francesco Passerini, Mar 20, 2019, 5:09 am

Full annual simulation- 365 days only?

NC-v4 EQc7: Daylight
posted by Anna Korinkova on Jan 22, 2019, 6:08 am

I would like to clarify what exactly is meant by 'full annual simulation' for the...

Last reply: TODD REED, Jan 23, 2019, 10:12 am

Surface reflectance of materials and Interior shades and Blinds

NC-v4 EQc7: Daylight
posted by Kavita Karmarkar on Aug 1, 2018, 4:26 pm

1. Where can I find the surface reflectance values for some common materials like gypsum boards, ACT ceilings etc. I can't seem to find it listed in the product documents from manufacturers. Is...

Last reply: TODD REED, Jan 16, 2019, 8:08 pm

Should I include the club space in daylight simulation?

NC-v4 EQc7: Daylight
posted by Agnieszka Kaczmarek on Jan 2, 2019, 7:57 am

On level -1 the club space is projected. According 'regularly occupied space' definition the club space is a an area where people spend more than one hour per person per day on average but the...

Exemplary performance when exemption applies

NC-v4 EQc7: Daylight
posted by Ricardo Sá on Dec 21, 2018, 12:34 pm


we are currently evaluating daylight compliance of a building in which the majority of regularly occupied spaces has less than 250 sf. According to...

manual control clarification for translucent glazing

NC-v4 EQc7: Daylight
posted by Elaine Bright on Nov 26, 2018, 2:53 pm

The design team wants to know if translucent glazing in clerestory windows would be a manual means of complying with glare control for the daylighting credit requiement for a V4 BD+C project.  I...

Last reply: Elaine Bright, Nov 28, 2018, 1:51 am