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Path 1. Divert 50% and Two Material Streams (1 point)

NC-v4 MRc5: Construction and demolition waste management
posted by Ayman Khulief on Apr 29, 2021, 4:40 am


I represent a Solid Waste Management company often subcontracted to divert wastes from LEED projects. I have a silly question regarding Option 1. Diversion (1–2 points)...

Last reply: Afogreen Build, Oct 25, 2021, 5:50 am

Is PV acceptable as Cover for Long Term bike parking?

NC-v4 LTc6: Bicycle facilities
posted by Ryan Dirks on Aug 31, 2021, 11:12 am

We are working on a project with ample PV on site, and are hoping it could count as cover for long term bike parking.  My only hesitation with this is that there will likely be small gaps between...

Last reply: Afogreen Build, Oct 25, 2021, 5:37 am

Documentation requirements?

NC-v4.1 EQc6: Interior lighting
posted by Glenn Heinmiller on Oct 19, 2021, 1:02 pm

Has USGBC provided any documentation guidance for this credit? I recall seeing something buried somewhere on the USGBC website, but I can't find it now

Last reply: Afogreen Build, Oct 25, 2021, 5:33 am

Confusing about how to determine the Vps in VRP calculation

NC-v4 EQp1: Minimum indoor air quality performance
posted by James Cai on Oct 24, 2021, 11:59 pm

Dear all,

We have been told by LEED coach that under cooling condition, the VRP calculation should use minimum Vpz for zone, and use the design maximum Vps for system, but if all VAVbox's...

Low-emitting Material Calculator

NC-v4.1 EQc2: Low-emitting materials
posted by Summer Gorder on Oct 24, 2021, 6:15 pm

The Low-emitting Material Calculator includes,...

Free fresh air provided to small rooms

NC-v4 EQp1: Minimum indoor air quality performance
posted by Dina El-Sady on Oct 24, 2021, 7:49 am

I am working on a project with many small buildings connected to each other , some of the very small rooms may be designed with free fresh air entering through fresh air grilles not fans , is...

Legal Wood ACP calculator-

Pilot-Credits MRpc102: Legal Wood
posted by Arwid Theuer-Kock on Aug 20, 2020, 2:25 pm

We are forced to use the v4_v2009_Legal Wood ACP calculator_v02_0 calculator.

former we could enter the product price and the percentage of new...

Last reply: Agnes Vorbrodt, Oct 23, 2021, 9:35 pm

Greenguard for plywood

NC-2009 IEQc4.4: Low-emitting materials - composite wood and agrifiber products
posted by Erin Holdenried on Sep 2, 2021, 9:00 pm

IS Greenguard certification plus an attestation from the manufacturer that there is no formaldehyde acceptable for plywood products? 

Last reply: Dawn Garcia, Oct 22, 2021, 5:08 pm

Hotel rooms requirements

Hospitality-NC-v4.1 EQc9: Acoustic performance
posted by Fábia Leal on Oct 21, 2021, 11:41 am


In the new LEED v4.1 i noticed that in the acoustic performance credit all reference to residential projects has been removed.

In LEED v4, for hotel rooms the sound isolation...

Last reply: Adam Paul, Oct 22, 2021, 10:04 am

Flooring materials applied in the lift car

CS-v4 EQc2: Low-emitting materials
posted by Ray Chan on Oct 22, 2021, 1:15 am

My project intends to apply sealant and sheet vinyl as the flooring materials in the lift car. Please advise whether the mentioned materials can be exempted from EQ2.