I'm working on a skylit warehouse, around 700k sf. We're just barely non-compliant using Option 2 Prescriptive (something like 2.8% skylight area), but spot checks show that we'd be compliant...

Does the measurement for this credit have to be performed by some certified, un-biased 3rd party? Or can the contractor/architect/engineer/owner perform the test?
Thanks in advance for any...

Dear All,

What are the requirements of daylighting in a residential building? Specifically:

(1) Are bedrooms included in the calculations? The Reference Guide states that regularly...

There have been a few post here about using a weighted average...

Hi all,

The requirements in the guidance state:
"Calculate the daylight illumination for each applicable space using the following daylight criterion: Clear sky conditions at both 9...

I am a bit confused about the daylight simulation. We have carried out simulations for every occupied space in the building at 09:00 AM and 15:00 PM. We take the percentage of areas that are...

TODD REED Energy Program Specialist PA DMVA LEEDuser Expert 888 thumbs up January 24, 2012- 11:51 am The last addenda issued by USGBC changed the minimum requirement to 10fc. This is only noted in the addenda so Reference Guides will not show this. I assume the 25fc minimum you have seen in the forums and the threads were prior to this addenda. Log in or register to post comments ...

I'm trying to decide whether to continue pursuing Option 3 measurements. December in the northeast is not an ideal time to be measuring daylight, even when it's sunny outside. The footcandle...

Hello!
I am working on a LEED-registered project and I have a doubt regarding which is the Gross Area that I have to include into my calculations for EQ8 (option-Measurement).

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perception mechanisms. If I had my way, this forum would not be used for specific questions about daylighting simulation because it implies that these software programs are easy and complete ways to evaluate daylighting and they are not. The questions for daylighting simulations would be best discussed on each software's forum, through IBSPA or the building simulation forum. Email me if you would like the addresses to any of these forums. Log in or register to post comments TODD REED Energy Program Specialist PA DMVA LEEDuser Expert 888 thumbs up December 8, 2011- 4:12 pm Jill i agree and disagree with your...