Hi everyone,
I am stuck with something not as straightforward as it sounds like.
For IEQ Credit 8.2 LEED Healthcare Supplement provides a table named :
1- Perimeter Non-IPU Area with Window Access Required. What does "non IPU" means ?
It provides the following categories then:
- Floor plate area (bgsf)
- Threshold A:1 point
- Threshold B:2 points
2- Does the Floor plate area (bgsf) refer to the overall surface areas of the building or concern the perimeter surface areas within 15 feet ? I am confused with the title of the table.
3 -Also, if my building has a bGSF of 20,236 sqft, then should I be concerned by the 20,000 or 25,000 category?
4- Finally, LEED Credit IEQ 8.1 specifies the requirement : RequirementsAchieve a minimum of two points under IEQ Credit 8.2: Daylight and Views—Views.
If my building is not getting any points for IEQ 8.2 whereas I have 2 point for IEQ 8.1, then I won't have any points for IEQ 8.1 at all ?
Thank you very much.
Susan Walter
HDRLEEDuser Expert
1296 thumbs up
April 5, 2013 - 4:58 pm
This isn't one of my strength areas credit-wise but I'll give it a shot. Hopefully, someone else who has been working on earning this credit wll chime in.
1. Non-IPU means not an inpatient unit. The HC supplement has different standards for perimeter settings for inpatient and non inpatient units.
2. BGSF is the building gross square footage, so floor plans.
3. Yes, I would want to be at the 20,000 s.f. category. Read the definitions on floor area calcs and see what you can legitamately remove from the cals (some definitions are exterior of wall and some are interior of wall)
4. That is how I've been interpreting the credit. The project earns 8.2 before earning 8.1 which never seemed fair to me. It sets up one credit as a pre-req for another.
Olivier Brouard
Sustainable Energy EngineerApril 5, 2013 - 6:59 pm
Hi Susan,
thanks for your quick feeback.
Unfair is pretty much was I think this is as well for daylighting credits. I don't see why they should be depending on each other. And actually if 8.1 depends on 8.2 prerequisite, then 8.2 credits should be named 8.1 first since it is a prerequisite >_O.
I believe there is something not really fair as well regarding the denominator (floor bgsf). Assuming there are a lot of of not regularly occupied space on a floor, then the amount of qualified regularly occupied within 15' will be even smaller and the threshold very hard to reach when calculating the ratio. Question bullet 2 should take into account the perimeter space as the bgsf to make it fair since we are dealing with views on the perimeter.
Olivier Brouard
Sustainable Energy EngineerApril 11, 2013 - 4:32 pm
Hi Susan,
Looking back at question #2, how would you interpret the answer when my floor plate is 6,300 GSF (>15,000 GSF)?
The project falls below the floor plate threshold (>7,348 GSF) and there the credit language does not provide a method for interpolating compliance thresholds.
Then what would be the threshold applied to my floor plate ?
Thank you,
Olivier