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Water Meter Calibration Timeline

EBOM-2009 WEc1: Water Performance Measurement
posted by Michelle Bracewell-Musson on Feb 12, 2019, 6:14 pm

Hello All,

This is not a question, however, as there have been a few questions regarding calibration and how often it needs to be done.  It took some time, however, after speaking to a...

Revit Insight software for daylight stimulation

CS-v4 EQc4: Daylight
posted by Shefali Shah on Feb 12, 2019, 6:39 pm

We are using Revit Insight software for daylight stimulation for (V4.1) option 1

Insight has built in settings for LEED daylight credits, Do we have to model blinds in the Revit model to...

Is it safe to infer 'No formal Systems Manual' in v4?

CI-v4 EAc1: Enhanced Commissioning
posted by Larry Lister on Feb 12, 2019, 6:40 pm

I've read a few opinions and haven't found any official Interpretation (yet?) to better define the discrepancies in language regarding required...

Double HVAC system per zone

NC-v4 EAp2: Minimum Energy Performance
posted by Jorge López de Obeso on Feb 11, 2019, 6:55 pm

Marcus Sheffer LEED Fellow, 7group / Energy Opportunities LEEDuser Expert 5489 thumbs up February 13, 2019- 10:26 am As you indicate most software can't model two systems in one zone. So this would likely be very software specific. I'd suggest this part of the question is better served on one of the software specific forums at onebuilding.org. If you are trying to find out which software can do this I would think that EnergyPlus is the most likely. The DOAS with FC is a common system type that most software has a methodology for modeling. It again varies by software as some can model...

Last reply: Marcus Sheffer, Feb 13, 2019, 10:26 am

Office building- Water cooled VRF DES

NC-v4 EAp2: Minimum Energy Performance
posted by Aravindraj RB on Feb 11, 2019, 7:33 am


I'm working on a office building which is served by water cooled VRF and the ground floor consists of...

Last reply: Marcus Sheffer, Feb 13, 2019, 10:20 am

Box in a Box in another Box

CI-v4 EAp2: Minimum Energy Performance
posted by Waleed AlGhamdi on Feb 6, 2019, 1:53 pm


We have a LEED v4 ID+C CI project that is a substantial renovation. It's 8 floors and receiving a new HVAC system for the entire building, but there are many peculiar situations:


Last reply: Marcus Sheffer, Feb 13, 2019, 10:11 am

Rainwater management infrastructure availability

NC-v4 SSc4: Rainwater management
posted by Emmanuel Pauwels on Feb 13, 2019, 7:08 am

What happens when a rainwater tank, designed to keep the required amount of rainwater is faced with a second stormevent? Does USGBC require demonstration of drawdown of the rainwater tank? 

Specific design strategies to comply with Construction IAQ Plan

NC-v4 EQc3: Construction indoor air quality management plan
posted by Amine Zeidane on Feb 13, 2019, 4:59 am


Whate are the specific design strategies that must appear on HVAC Design Drawings regarding Construction indoor air quality management plan, apart from Filtration media ?


100% nonportable water for cooling tower

NC-v4 WEc3: Cooling tower water use
posted by Thomas Tran on Feb 13, 2019, 4:08 am


LEED reference document says in the Required document Table (page 309):

- Nonportable water analysis (if use 100% nonportable water) -------------------------------------- 2...

Discounted Parking Rate- How to implement?

NC-2009 SSc4.3: Alternative transportation - low-emitting and fuel-efficient vehicles
posted by Michelle Bombeck on Jul 1, 2016, 1:10 pm

I have a large mixed use retail/office project that is interested in using the discounted parking rate option to comply with this credit but is finding logistical issues. The parking garage will...

Last reply: Jason Biondi, Feb 12, 2019, 11:27 pm