I'm somewhat surprised by the lack of posts for this topic. We found it matched up nicely with our OPR and desire for appropriate daylighting throughout the project. We actually fell just under the 75% threshold for the main Daylight credit, but the threshold for the nonregularly occupied spaces were much more achievable, possibly too easily? We achieved 42% with a 20% threshold.
Does anyone else have experience with this credit?
Kath Williams
LEED Fellow 2011, PrincipalKath Williams + Associates
147 thumbs up
May 23, 2020 - 11:55 am
For Schools, we found the same thing...it matches our OPR and since we are a private middle school campus, the daylight and views credits are so important. I agree, the lack of posts is odd.
Mary Lea Tucker
PresidentGreen Sage Consulting LLC
8 thumbs up
July 30, 2020 - 1:27 pm
I asked the architect on the job to respond to this question and this is what he had to say - Ron Colin, Renaissance Group
The credit was easy to obtain for our project and you could normally if you have a building type and layout that accommodates the availability of openings/glazing in most types of spaces. With the building type of our LEED project we had large openings with glazing as part of the basic function of the non-regularly occupied space. With interior windows it allowed the daylight from the main space to flow into other adjacent spaces as well.
We were also able to obtain 2 points in lieu of 1 for the main daylight credit by substituting the 4.1 version because we were missing the threshold by a mere 2%.
Elisa Sirombo
Sustainability specialistGET srl
2 thumbs up
November 9, 2020 - 6:14 pm
We are working on a Distribution Center in Italy and we find the credit achievable and aligned with the OPR and the intent of improving the energy performance of the project. Infact, in warehouse buildings, the largest non regularly occupied area is represented by the storage, so that having skylights to daylit those large spaces is both a cost-effective energy efficient measure and comfort strategy to guarantee a base lighting.
To demonstrate compliance we are following the path of demonstrating illuminance values, so following option 2 through computer simulation.
The project also pursues the daylight credit substituting the LEED 4.1 version.
Sandra Schmid
November 16, 2020 - 4:40 am
We pursued the pilot credit daylight in non-regularly occupied spaces for two different office buildings in Germany: one BD+C: New Construction and one ID+C: Commercial Interiors. The pilot credit was easy to achieve, as long as kitchenettes are equipped with wide windows and corridors or staircases are partly lightened via interior windows or skylights. By using Option 2 Simulation we achieved around 30 % in both projects.
In addition, we pursued the main Daylight credit in both projects by substituting the 4.1 version and achieved 1 and 3 points.
Kairi Noulik
2 thumbs up
November 26, 2020 - 6:16 am
We pursued the pilot credit daylight in non-regularly occupied spaces by using simulation program and achieved more than 20%. We had windows in lift halls, in corridors and in staircases but not in kitchenettes.
C Yuen
21 thumbs up
March 11, 2021 - 5:49 am
Our commercial interior project occupies half a floor and the design deliberately uses glass partition to let daylight through to the non-regularly occupied areas. However the project does include store rooms, IT rooms and these do not have glass walls. As the areas of these areas are not too big, we are slighting over the 25% threshold.
Stephanie Graham
Sustainability ManagerBurns & McDonnell
26 thumbs up
March 22, 2021 - 3:47 pm
Our Project is a large university campus thermal energy plant and the chiller room alone is over 10,000 SF and the largest space in the building. Our daylight modeler noted that LM-83 typically asks for daylit spaces to be divided (virtually) into segments of less than 10,000 SF. As a workaround we are dividing the room in Revit with a boundary line. Has anyone else had this issue arise, and if so, did you handle this another way? Thanks for any feedback.
BTW, we are also pursuing the v4.1 Daylighting credit for the regularly occupied spaces that include the control room and other office facilities and shop area. The OPR includes using the plant itself for educational purposes and potential monitoring of systems by students, so this credit is a great fit with our project.
Maryanne Welton
Project ManagerRob Wellington Quigley, FAIA
April 19, 2021 - 5:35 pm
We just documented this credit for a Fire Station. We achieve 64% compliant daylighting in non-regularly occupied spaces when 20% minimum was required. We emphasize natural daylighting in as much of a building as possible, not just for regularly occupied spaces. The use of glazing, skylights, solotubes and a large lightwell all contributed to documening (and hopefully achieving) this credit.