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Lighting only for maintenance/service HVAC

NC-v4 SSc6: Light Pollution Reduction
posted by J Schuetz on May 18, 2020, 6:53 am

Dear all,

do lights that are only switched on if a technician has to service the HVAC systems on the roof at night have to be considered for this credit? The HVAC systems are enclosed in a...

Last reply: Bill Swanson, May 22, 2020, 10:29 am

Can Changes in the Master Site Credits Affect the Awarded Certification of an Existing Building?

LEED Guidance for Campuses and Multiple Buildings
posted by Dei Dela cruz on May 6, 2020, 6:15 am


Hope someone can enlighten us with this.

We have an existing building in the Master Site which is already certified. The owner plans to...

Last reply: Barbora Cicvárková, May 22, 2020, 8:17 am

metered faucets

NC-v4 WEp2: Indoor water use reduction
posted by Nelina Loiselle on Jun 15, 2017, 10:59 am

Are you still allowed to install metered faucets in public lavs, you just can't claim an savings from the conversion? The reference manual is a little ambiguous by saying the duration-based "...

Last reply: Izabela Kwiecinska, May 21, 2020, 5:19 pm

Monitoring System Single Zone VAV

NC-v4.1 EQp1: Minimum indoor air quality performance
posted by Rosalie Deliz on May 20, 2020, 8:51 pm


We are using single zone roof top package roof top units on one of our jobs. Does the requirement for monitoring a...

Manufacturer definition

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Muhammad Al Mahasneh on May 21, 2020, 4:55 am


how does LEED define a manufacturer? It seems quite a no-brainer, but we got a lot of different "commercial" manufacturer names (with different names on bills, invoices,...

Does "Total Site Area" include building footprint?

EBOM-v4 SSc6: Site improvement plan
posted by Raquel Clemente on May 21, 2020, 3:07 am

I'm not sure if "Total Site Area" includes building footprint or not in this credit. This concept changes through the different LEED credits, sometimes building footprint is included and others...

What is meant by Informal Transit?

CS-v4.1 LTc4: Surrounding density and diverse uses
posted by Amgad Khattab on Jan 1, 2020, 9:30 am
Last reply: Olga Yuil, May 20, 2020, 8:56 pm

Option 2 Optimization- from what?

NC-v4.1 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Margaret Montgomery on May 20, 2020, 6:03 pm

I think, perhaps foolishly, that we may have some products that can meet this requirement, but can only move forward if I can answer two key questions: 

1. What is the baseline from which...

Achievement of Triple Bottom Line Analysis by Major Credit Category

Pilot-Credits INpc122: Informing Design by Major Credit Category Using Triple Bottom Line Analysis
posted by Candice Rogers on May 20, 2020, 5:01 pm

Hello.  We have documented Triple Bottom Line Analysis using Autocase for a Warehouse and Distribution Center.  The effort returned very interesting results in terms of values and particularly...

Systems requiring metering

CS-v4 EAc3: Advanced Energy Metering
posted by Tim Nabholz on Apr 4, 2017, 11:20 am

Hi All,

I am pursuing this credit for a LEED v4 Core and Shell project and am having trouble determining which systems require meters. The credit requirements state "Install advanced...

Last reply: Marcus Sheffer, May 20, 2020, 4:33 pm