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Topic Air Leakage application in no heated or cooled spaces

Warehouses-NC-v4 EAp2: Minimum Energy Performance
posted by Paola Moschini on May 30, 2023, 5:20 am

About Mandatory Provision ASHRAE 90.1-2010 point Air Leakage. Must this prescription be applied also to fenestration and doors of a warehouse not heated or cooled? We are in Climate zone...

Last reply: Marcus Sheffer, May 30, 2023, 10:43 am

GHG emission factor- renewable energy and operating hours-EA energy performance O+M v4.1

EBOM-v4.1 EAp3: Energy Performance
posted by RICCARDO BALLESIO on May 18, 2023, 6:30 am

Hello everyone, 

in the previous version LEED...

Regional ACP for LEM VOC Emissions Evaluation- Manufacturer statement

NC-v4.1 EQc2: Low-emitting materials
posted by Muhammad Mahasneh on May 10, 2023, 3:54 am


i would like to ask about the April 2023 Update to the Regional ACP ID# 100002473 regarding Low Emitting materials:

"Laboratories that conduct the tests must be...

Direction for testing new and retrofitted equipment

CI-v4 EAc1: Enhanced Commissioning
posted by Francesco Passerini on Mar 27, 2023, 4:38 am

Dear all,

Among the content that is request for the Ongoing...

Natural ventilation compliance using energyplus Airflow Network

NC-v4 EQp1: Minimum indoor air quality performance
posted by Alessandro Zuanon on Feb 9, 2023, 8:42 am

Dear all,

i'm in the case of a warehouse in which natural ventilation is provided (CIBSE tool ok), but i have to demonstrate compliance with ASHRAE 62.1-2010 through simulation. I cannot...

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...

Last reply: Zeynep Cakir, Feb 9, 2023, 6:05 am

Indoor Water Use Reduction_Well water

CS-v4 WEc2: Indoor water use reduction
posted by Giuseppina Amorusi on Nov 23, 2016, 9:06 am

emily reese moody Sustainability Director, Certifications & Compliance Jacobs LEEDuser Expert 396 thumbs up January 13, 2023- 12:56 pm This post is older, but I wanted to connect it to a similar question in the NC page for this credit for cross-referencing:  https://leeduser.buildinggreen.com/forum/nonpotable-water-source As of this response, it is not entirely resolved.  From the Ref Guide text, it seems that treated well water  should  be considered the same as collected and treated rainwater- if it has not been treated to potable standards, and is still non-potable, but not "raw"....

Last reply: emily reese moody, Jan 13, 2023, 12:56 pm

Prerequisite- parking garage ventilation

Hospitality-NC-v4 EQp1: Minimum indoor air quality performance
posted by Francesco Lupoi on Dec 7, 2022, 4:15 am

Our specific concern is the ventilation of the parking garage.

We ensure natural ventilation with openings located on two opposite sides of the plan and designed according to Italian fire...

Luminance of less than 2,500 cd/m2 between 45 and 90 degrees from nadir

NC-v4 EQc6: Interior lighting
posted by Henri Barten on Nov 28, 2022, 10:59 am

Hello, i'm new into the LEED requirements.

My customer ask me if we have light fixtures with a luminance of less than 2,500 cd/m2 between 45 and 90 degrees from nadir.

Is there some...

Last reply: Glenn Heinmiller, Dec 6, 2022, 11:25 am

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: Eric Anderson, Nov 8, 2022, 1:12 pm