[Bldg-sim] Definition of a University Dormitory - Residential or Non-Residential?

[Demba Ndiaye]

Dónal,

Our team recently modeled a similar university dorm (Basement + Main floor with office spaces + four floors or residential units) for LEED 2009.

We determined that the Baseline should be based on "Residential" (as indicated by the note on Table G3.1.1A that says to use the predominant condition to determine the system type for the entire building) and used System 2 (electric-type heating in our Proposed case). For the common areas such as the office spaces in the first floor, you can use the same type of system (1 per zone) if they do not meet Exception G3.1.1a.

The LEED reviewers accepted our approach and we got our 8 points for that project EAc1.

Good luck,



[cid:image003.jpg at 01CE35F3.4F3AC620]Demba Ndiaye, Ph.D., P.E., LEED AP BD+C, BEMP
Senior Energy Analyst/Mechanical Engineer

Setty & Associates, Ltd.

MEP Design Engineering | Project Management
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|3040 Williams Drive, Suite 600 | Fairfax, VA 22031
|Voice 703.691.2115 | Fax 703.691.8084 | cell 571.830.9913
 demba.ndiaye at setty.com<mailto:demba.ndiaye at setty.com> | www.setty.com<http://www.setty.com/>

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From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Rut Wattanasak
Sent: Wednesday, April 10, 2013 1:33 PM
To: Jim Dirkes; Dónal O'Connor; Building Sim Forum
Subject: Re: [Bldg-sim] Definition of a University Dormitory - Residential or Non-Residential?

Per the exception noted by Mr Dirkes, I would model the Baseline building based on Table G3.1.1A; except with the dorm rooms, modeled them with System 1 or 2.

Here is how I come to this decision:


 *   Since your dormitory building contains some non-residential space types, you shouldn't use the building type to determine your Baseline, ie it's no longer truly a residential building type
 *   Dorm rooms still fall under the residential space type, so use residential Baseline systems (1 or 2) for those spaces
 *   "Other building and space types are considered nonresidential"  This statement allows the rest of the building to be modeled per standard baseline (area, # of floors, energy source).

I see the same thought process applies to the mixed-use (commercial/apartments) as well.  With the rise of mixed-use commercial building, I'm sure we'll be seeing this type of scenario more often.  I welcome any comments or suggestions.

Thanks,

Rut Wattanasak
LEED AP BD+C



________________________________
From: bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org> on behalf of Jim Dirkes
Sent: Wednesday, April 10, 2013 12:53 PM
To: John Aulbach; Dónal O'Connor; Building Sim Forum
Subject: Re: [Bldg-sim] Definition of a University Dormitory - Residential or Non-Residential?

However.....
The notes in that table clarify as shown below.  I think the notes indicate that Donal's "predominant" building type is residential.  It sounds as though there are some "non-predominant" types as well.  Take a look at G3.1.1's Exceptions for a description of those.

>From 90.1-2007 Table G3.1.1A:
Notes:
Residential building types include dormitory, hotel, motel, and multifamily. Residential space types include guest rooms, living quarters, private living space, and sleeping quarters. Other
building and space types are considered nonresidential


James V Dirkes II, PE, BEMP, LEED AP
www.buildingperformanceteam.com<http://www.buildingperformanceteam.com/>
Energy Analysis, Commissioning & Training Services
1631 Acacia Drive, Grand Rapids, MI 49504 USA
616 450 8653

From: bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org> [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of John Aulbach
Sent: Wednesday, April 10, 2013 12:47 PM
To: Dónal O'Connor; Building Sim Forum
Subject: Re: [Bldg-sim] Definition of a University Dormitory - Residential or Non-Residential?

Sir:

If the building is over 5 stories high believe that comes under Non-Residential. Period.


John Aulbach, PE

From: Dónal O'Connor <oconnor_dj at hotmail.com<mailto:oconnor_dj at hotmail.com>>
To: Building Sim Forum <bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>>
Sent: Wednesday, April 10, 2013 9:05 AM
Subject: [Bldg-sim] Definition of a University Dormitory - Residential or Non-Residential?

Dear Bldg Sim,

I'm looking for guidance on the definition of a University Dormitory building that I'm modeling under LEED 2009, particularly referencing Table G3.1.1A Baseline HVAC System Types. The building has 9 storeys above grade with an underground basement, with a total floor area of approx. 125,000 sq. ft.

The Basement is primarily crawlspace, electrical, mechanical, student storage etc.

The Main Floor consists of a number of multi-purpose rooms, further storage facilities for bicycles, recycling etc, with 1/3 of the main floor plan dedicated to student residences.

The remaining floors, 2 - 9, are student residences with a number of break out/study rooms/lounge areas on each floor.

Is the building classified as "Residential", or is it considered "Nonresidential and More than 5 floors or > 150,000 sq. ft" due to the basement and main floor spaces not being "Residential"? Will I have to model the basement and the main floor separate from floors 2-9?

Your help is greatly appreciated.

Cheers

Dónal

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