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v4 or v4.1?

LEED v4.1 Discussion Forum
posted by Diego Lodoli on May 27, 2022, 5:27 am

Dear all, since v4.1 is still a beta version and on LEEDonline both v4 and v4.1 are available for registrating a new project, which is the general rule for selecting the right version? I'm...

Master Site: Substitution credit from LEED v4 to LEED v4.1

NC-v4 WEc3: Cooling tower water use
posted by Mario Angelo Pinoli on Dec 17, 2019, 11:22 am

Hi everyone, 

we registered a project as a Master Site in LEED v4 version and we would like to replace the WEc3 credit with the same credit of the LEED v4.1 version.

The credit can'...

Last reply: Maeve Donohue, May 11, 2022, 10:31 am


Hospitality-NC-v4.1 LTc3: High Priority Site and Equitable Development
posted by Francesco Lupoi on Apr 11, 2022, 7:18 am

Hi everyone,

I'm working on a LEED Gold Certification of New Construction Hotel in Rome. Before the assignement by the building owner and before the start of works on the site construction...

Last reply: Emily Purcell, Apr 22, 2022, 9:47 am

ventilation in unheated and uncooled spaces

NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Passerini on Apr 21, 2022, 7:22 am

I have doubts relative to the correct intepretation of ASHRAE 62.1 for unheated and uncooled spaces.

The text of ASHRAE is:

6.4 Natural Ventilation Procedure.


automatic indication devices

NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Passerini on Mar 9, 2022, 9:20 am

For monitoring of naturally ventilated spaces the following option is available: "Provide automatic indication devices on all natural ventilation openings intended to meet the minimum opening...

Constant volume AHUs- Monitoring requirements AHU status On/Off

NC-v4 EQp1: Minimum indoor air quality performance
posted by Alessandro Zuanon on Feb 23, 2022, 10:24 am

Dear all,

i'm in the case of constant volume AHUs, the operating logic is ON/OFF. Regarding monitoring requirements for...

Last reply: Alessandro Zuanon, Feb 28, 2022, 3:25 am

Quality View_Views into Atrium

NC-v4.1 EQc8: Quality Views
posted by Ilaria Colombo on Jan 28, 2022, 10:18 am

Hi everyone,

We have an office building with two floors and an internal atrium that crosses them.

My first question is, for the alternative view into atrium can I consider all the...

Last reply: Ilaria Colombo, Feb 14, 2022, 12:20 pm

Mandatory MERV 11 or higher filters in existing building

NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Passerini on Oct 15, 2021, 12:25 pm

The credit requests confirmation that the project has...

Last reply: Afogreen Build, Feb 9, 2022, 9:39 am

B.U.G. determination

NC-v4 SSc6: Light Pollution Reduction
posted by Francesco Passerini on Jan 28, 2022, 12:43 pm

Hello, I remember a tool online for the determination of the BUG indexes. The upload of the photometric curves was necessary. I am no more able to find that. Is that no more available? Is there...

Last reply: Francesco Passerini, Jan 29, 2022, 3:45 pm

Possibility of unconditioned regularly occupied space

NC-v4 EAp2: Minimum Energy Performance
posted by Alessandro Zuanon on Dec 16, 2021, 6:46 am


i'm in the case of a regularly occupied space (a mechanical workshop in a warehouse), in which there is the possibility of no heating or cooling system installation. Is it possible...

Last reply: Afogreen Build, Dec 21, 2021, 6:01 pm