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Equations and calc methods

EBOM-v4.1 EAp3: Energy Performance
posted by Ricardo Filho on Feb 21, 2023, 5:01 am

I am doing some research on LEED v4.1 O+M and I have a number of questions.
I am going to post them here (I know it is a lot) hoping someone knows the answer for a few of them, maybe.


Last reply: Saba Hajizadeh, Nov 10, 2023, 4:29 pm

Flush-out area

NC-v4.1 EQc4: Indoor air quality assessment
posted by Charalampos Giannikopoulos on Nov 9, 2023, 4:27 pm

Could you kindly confirm than only the net (excluding wall surfaces, shafts, etc.) and not gross area of a building needs to be considered for flush-out?

Last reply: Dave Hubka, Nov 10, 2023, 12:24 pm

Documentation needed for a renovation project

NC-v4 EAc3: Advanced Energy Metering
posted by Audrey LEDESERT on Nov 10, 2023, 2:49 am


I'm working on a renovation project, in Core & Shell. Concerning the different meters, some of them are existing meters.

How do we have to consider those existing meters ?...

Last reply: Marcus Sheffer, Nov 10, 2023, 11:29 am


Mid-Rise-v4 INc2: LEED Accredited Professional
posted by Laura Rojas on Nov 10, 2023, 10:13 am

AI am working on a Residential BD+C
Multifamily Homes project and I was wondering if to earn the point for LEED
AP Professional, the LEED AP should be LEED AP Homes, or if I can apply...

Two separate buildings / 2 waste haulers / 1 report

NC-v4 MRp2: Construction and demolition waste management planning
posted by Allison Para on Nov 1, 2023, 3:04 pm

Hello Users,

I have a question regarding 2 separate (identical) residential buildings, registered to LEED separately by architect (NCv4bdc), located a court yard across from one another,...

Last reply: Allison Para, Nov 9, 2023, 4:25 pm

Views credit

CI-v4.1 EQc8: Quality Views
posted by Denise Bates on Sep 13, 2022, 12:05 pm

in a CI project where you do not have access to the building's VLT, is there a default value we can use?   not finding guidance on it 

Last reply: , Nov 9, 2023, 11:39 am

Calculating CO2 setpoint for carbon dioxide monitoring

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Edgar Arevalo on Nov 9, 2023, 11:19 am

I've been looking at Appendix C of ASHRAE 62.1-2010 for a way, and I keep scratching my head.  Does anyone how to calculate for the...

MEPC Data Center Calculator Example

NC-v4 EAp2: Minimum Energy Performance
posted by Rajat Wadhwa on Nov 8, 2023, 8:40 am

Hi I am looking for example for MEPC Data Center Calculator, I dont have any experince filling that sheet, can someone guide me where should I look at ?



Last reply: Moses Chong, Nov 8, 2023, 9:29 am

BUG Method- Recessed Ceiling Exterior Downlights

NC-v4 SSc6: Light Pollution Reduction
posted by Edgar Arevalo on Nov 7, 2023, 12:34 pm

There is project where the only exterior lighting is two ceiling recessed downlighting fixtures installed at the outdoor canopy of the main entrance.  According to the BUG method, B (backlight) ...

Last reply: Glenn Heinmiller, Nov 7, 2023, 1:54 pm

Regularly used exterior entrances

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Julie Hardy on Nov 7, 2023, 11:20 am


We have an office building where the main entrance is at the back, close to the parking area. All...

Last reply: Dave Hubka, Nov 7, 2023, 12:59 pm