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Achievable in many buildings
Buildings that provide views to the outdoors have proven to enhance productivity, testing performance, and overall occupant comfort and well-being. This credit is easy to achieve if you also plan to design for open space planning, placing occupied spacesOccupied Spaces are defined as enclosed spaces that can accommodate human activities. Occupied spaces are further classified as regularly occupied or non-regularly occupied spaces based on the duration of the occupancy, individual or multi-occupant based on the quantity of occupants, and densely or non-densely occupied spaces based upon the concentration of occupants in the space. near exterior windows with large...
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12 Comments
Regularly Occupied Spaces
Hi, i'm working on a core and shell proyect particularly in 8.2 credit,and i have the next question about it, are cafeteria and file room a regularly occuped spaces??, and another question is , there is a difference between regularly occupied spacesRegularly occupied spaces are areas where one or more individuals normally spend time (more than one hour per person per day on average) seated or standing as they work, study, or perform other focused activities inside a building. and regularly occupied gross area? , i'm asking this because our proyect was reviewed already , and one of the technical advices given, was match the total regularly occupied gross area of PIf3 form with total regularly occupied spaces of IEQ 8.2 credit form. I'd not worked on this proyect before , and i'm trying to understand what the other people did.
#1 cafeteria is most definitely regularly occupied, the file room usually not. That's how we have submitted it in the past and it has been excepted.
#2 We had that a couple of times before. Actually the numbers from the PIF3 form are no longer linked with the IEQ 8.1 / 8.2 form in the newest version of those forms. Might be that this hasn't been updated for Core& Shell yet. I would just verbally explain that this numbers can not match. Because gross area means including walls. The definition for IEQ 8 applicable area excluded walls. So basically LEED online is wrong. You might also just changed the PIF3 form to the same number, which you are using in IEQ 8.2. At least that's what I was doing on in my last CS projects.
The area definition and cross relationship in LEED Online is an ongoing problem. The reviewers are devices to asked for clarification if the difference between gross area and occupied or "area per EA P2 in your simulation" is to large.
You might want to send the reviewer an email through LEED online to asked for some clear guidance on the issue.
Thanks Susann, i sent a "feedback" to leed on line. At the same time, i had another question with the regularly occuped spaces for IEQ c 8.2 form , the building has in each floor a central core and workstations around it , there are 6 floor in total and two of them has cafeteria and file room (my previous question), my doubt now is the corridors areas must be excluded from calculations of regularly occuped spaces? , basically this area is where the workers walk to the exit. I'm checking the leed user's glossary and corridors and lobbies are nonregularly occupied spacesOccupied Spaces are defined as enclosed spaces that can accommodate human activities. Occupied spaces are further classified as regularly occupied or non-regularly occupied spaces based on the duration of the occupancy, individual or multi-occupant based on the quantity of occupants, and densely or non-densely occupied spaces based upon the concentration of occupants in the space., but if this area is not large and is the way to walk into the open office i don't know if it count as regularly occupied spaces.
Thanks again.
If it's a corridor separated by full height walls, you will have to exclude it for sure. If it's a walkway in the open space than you can basically go either way. The determination of an area for this walkways is very arbitrary and therefore leave lots of room for discussions. We have done it either way included and excluded, what ever was the most likely layout.
Layout for retail spaces
Hi,
I am working on a C&S building, it will be mainly occupied by offices and we have a proposed layout for those spaces. The ground floor is for retail,
do we need to prepare a layout for that space, even if we have no idea of what kind of business will it be? Does all the area count as regularly occupied?
There will also be a Gym on the first 3 floors, do we need to make a layout? Wich spaces count as regularly occupied?
Thanks
You will need to show a proposed / potential tenant design. This doesn't have to be, what's actually been done in the space. But you will need it to determine compliance and what's regularly occupied or not. That's also the case for the retail area and the gym. Basically the whole building needs to have a potential tenant design. Keep in mind that it has to be consistent throughout the credits.
What is a "view factor?"
In the Reference Guide, under Exemplary PerformanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. for this credit, item #4 mentions a "view factor." What is that? I can't find an explanation of it in the Reference Guide or on LEED User.com.
The view factor is determined per the Heschong Mahone Group Study page 47 (see paragraph below #4 in the reference guide). You will also find the reference in the excel spread sheet (under resources) for documenting this credit on LEED online.
Exemplary Performance
Hi,
I would like to confirm if in point 3 of exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements. mean that within a distance of 3 x 42`` (typically) there will be no obstacles like glass walls, furnitures ect. between the desk and exterior view?
How should I understand "view factor", there is nothing about it in LEED Guide except this exemplary performance saying "with a factor of 3 or grater". How can I calculate it?
Thanks
In point 3 of exemplary performanceIn LEED, certain credits have established thresholds beyond basic credit achievement. Meeting these thresholds can earn additional points through Innovation in Design (ID) or Innovation in Operations (IO) points. As a general rule of thumb, ID credits for exemplary performance are awarded for doubling the credit requirements and/or achieving the next incremental percentage threshold. However, this rule varies on a case by case basis, so check the credit requirements., unobstructed view means that no furniture or opaque or translucent material will be between the viewer and three times the head height of the view window. LEED does not count anything above 7'-6" as view window, above that it is called a daylight window. For example, if the window head height is 7', there will be no obstructions back to 21' from this window. If a glass wall is in this location, it must be transparent.
Although it is not obvious, there is something about view factor in the LEED Guide. It is in the paragraph following the 4 options of exemplary performance starting with "Measures determined per the Heschong Mahone Group..." and ending with the link on where to download the report that describes view factor. Susann Geithner has also noted this is the post immediately previous.
Views for tennacies in CS
I would like to know if spaces for leasing, which are not part of the core & shell of the building, are requiered to have access to views, specially tennancies for commercial retail at ground floor and restaurants.
Andres, I think this question is answered in the LEEDuser guidance above (under Bird's Eye View and Credit Language tabs). Tenant spaces are included in this credit, in short.
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