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Anti-Ligature fixtures

NC-v4 WEp2: Indoor water use reduction
posted by Leanne Conrad on May 25, 2018, 12:59 pm

The reference guide is clear that special or unique water closets can be excluded from the credit calculations, my query is does this expand to special or unique fixtures? Our client requires...

Last reply: Stewart Whitcomb, Jan 8, 2020, 5:07 pm

International Compliance Path

NC-v4.1 MRc4: Building product disclosure and optimization - material ingredients
posted by Martha Lewis on Jan 8, 2020, 7:44 am

Very curious why both LEED 4 and 4.1 restrict the Candidate List to "the version in effect June 2013"? The wording appears to indicate that of the 3 lists, only the Candidate list is restricted...

Installed and not Installed HVAC

CS-2009 EAp2: Minimum Energy Performance
posted by PAULA HERNANDEZ on Jan 3, 2020, 9:50 am


I am modeling a C&S building for the Construction Submittal, and I have to adjust the Design Submittal Energy Model because the Owner change the brand of the VRF systems.


Last reply: PAULA HERNANDEZ, Jan 8, 2020, 6:10 am

Rc value

NC-v4 EAc6: Enhanced Refrigerant Management
posted by Lise Dannesboe on Jun 1, 2018, 10:08 am


To caluclate the Rc-value we need to know the amount of refrigerant and the cooliing capacity. As LEED v4 puts it:

Rc: Refrigerant Charge
(0.065 to 0.65 kg of refrigerant...

Last reply: Sara YOUSSOUFI, Jan 8, 2020, 6:04 am

TI vs CS Scope Timing Gap

NC-v4.1 EAp2: Minimum Energy Performance
posted by Levi Jimenez on Jan 7, 2020, 6:56 pm

We have a LEED NC v4.1 project that is currently in schematic design, and the Core Shell construction will be completed well before the TI scope.  I recall reading somewhere that we only need to...

Sunset date and timelines

LEED Reviews: Appeals, Design/Construction Submittals, and more
posted by suveera kakkar on Nov 15, 2017, 4:21 am


I am working on a CS-2009 project with precertification and split review. As the sunset date is set for June30, 2021 we are trying to set timeline for the submissions. As per my...

Last reply: Tristan Roberts, Jan 7, 2020, 5:48 pm

Bicycle Network Connections

NC-v4 LTc6: Bicycle facilities
posted by Michelle Rosenberger on Mar 7, 2016, 5:20 pm

This must be obvious to everyone but me since I don't see a question on this. Our project is adjacent to a well established bike trail that extends for 10 miles or more in both directions. The...

Last reply: Joann Lee, Jan 7, 2020, 2:54 pm

Exterior Lighting Requirements

Pilot-Credits SSpc55: Bird collision deterrence
posted by Rick Tucker on Jan 7, 2020, 2:01 pm

With the advances in exterior LED lighting drivers and controls, would it make sense to look at dimming exterior lights down to say 10% in lieu of turning them off completely from midnight to 6am...

Using ASHRAE 90.1-2013 as reference standard for v4 projects

NC-v4 EAp2: Minimum Energy Performance
posted by Gail Vittori on May 21, 2018, 2:52 pm

Has there been an equivalency established for LEED v4 projects that use ASHRAE 90.1-2013-Appendix G as reference standard (as there was for LEED 2009 projects that used ASHRAE 90.1-2010-Appendix...

Last reply: jamy bacchus, Jan 7, 2020, 1:32 pm

Batteries, mercury-containing lamps, and electronic waste

NC-v4 MRp1: Storage and Collection of Recyclables
posted by Maria Porter on Dec 19, 2019, 7:11 am

Chose to provide a recycling area for two of: batteries, mercury-containing lamps, and...

Last reply: Maria Porter, Jan 7, 2020, 3:12 am