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Operable windows-ground floor or upperfloor?

NC-v4 EQp2: Environmental tobacco smoke control
posted by Florian Schmidtchen on Jun 2, 2017, 10:26 am

Dear Sir or Madam,
Smoking must be prohibited within 25 feet of building entries, outdoor air intakes, and operable windows. A designated smoking area must be located at least 25 feet away...

Last reply: Trista Little, Aug 14, 2017, 7:59 pm

Elevator lobbies-with airlocks?

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Florian Schmidtchen on Aug 9, 2017, 11:44 am

Dear all,

We have mechanically ventilated spaces. For the option 1 we therefore have to comply with the requirement B. interior cross-contamination prevention. To create negative pressure...

Operable windows in lieu of controls- what about WOCDs

CS-2009 IEQc6: Controllability of systems - thermal comfort
posted by Andreas Hintz on Jul 26, 2017, 9:02 am

For determing the openable wall area (which has to be a minimum of 4% of the net occupiable floor area) should WOCDs (Window Opening Control Devices) be considered? Please explain how to...

Last reply: Lauren Sparandara, Aug 7, 2017, 1:46 pm


CI-2009 IEQp1: Minimum IAQ Performance
posted by Anke Koch on Mar 11, 2015, 5:35 am

Dear LEED community,
we are working on a project in Berlin, Germany. The existing building is a logistics center consisting of a logistics and warehousing facility made up of 3 units (48,...

Last reply: Andrew Mitchell, P.E., Aug 6, 2017, 9:28 pm

Irrigation type definitions

NC-v4 WEp1: Outdoor water use reduction
posted by Jens Apel on Jul 13, 2017, 9:37 am

Does anyone know if there are definitions for the different irrigation types? Especially the differences between the two drip types would be of interested.
Thanks, Jens

STC rating for the combination office- hallway

NC-v4 EQc9: Acoustic performance
posted by Florian Schmidtchen on Jun 2, 2017, 11:24 am

Dear all,
I have a question according to meet the composite sound transmission class (STCC) ratings listed in Table 1:
Do we have to meet the...

Waste Heat from Landfill Gas Plant

NC-v4 EAp2: Minimum Energy Performance
posted by Aaron Luthien on May 10, 2017, 11:10 am

Hello all,

We have an office project which utilizes waste heat from the neighbor landfill gas plant. The plant and office is owned by the same company. The plant produces electricity from...

Last reply: Aaron Luthien, May 26, 2017, 10:48 am

Tenant Area Modeling

CS-v4 EAp2: Minimum Energy Performance
posted by Aaron Luthien on May 5, 2017, 8:45 am

Hello all,

We have a C&S office project where the owner prepares technical infrastructure for VRF heating cooling system in tenant area. All tenants are obligated to use VRF system...

Last reply: Marcus Sheffer, May 5, 2017, 9:45 am

Taxi service to function as private shuttles

NC-2009 SSc4.1: Alternative transportation - public transportation access
posted by Dustin Schoen on Mar 29, 2017, 9:42 am

Our project is located in an urban environment, we are just a few yards short of fulfilling the requirements. Our project is expected to have as little as 5 FTEs, potentially even less. Do you...

Last reply: Kathryn West, Apr 3, 2017, 9:05 pm

Clear definition for interior/exterior needed

NC-v4 EQc2: Low emitting materials
posted by Björn Schön on Feb 17, 2017, 1:58 am

The Definition of interior/exterior in the LOW-EMITTING MATERIALS credit is a bit confusing for me. What is exaclty defined as a waterproofing membrane or air- and water-resistive barrier...

Last reply: Michelle Halle Stern, Feb 19, 2017, 12:49 am