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Sound Rating Method- can these vary per space types?

NC-v4 EQc9: Acoustic performance
posted by Iris Meeker on May 11, 2022, 2:01 pm

For HVAC Background Noise, do all spaces have to use the same Sound Rating Method (NC/RC,...

Evapotranspiration (ETo) Data Sources

EBOM-v4 WEc1: Outdoor water use reduction
posted by Stephanie Donovan on Mar 7, 2016, 6:12 pm

The resources link for this credit directs us to use the ETo software calculator from the FAO website:

Last reply: Trista Brown, May 11, 2022, 12:50 pm

Master Site: Substitution credit from LEED v4 to LEED v4.1

NC-v4 WEc3: Cooling tower water use
posted by Mario Angelo Pinoli on Dec 17, 2019, 11:22 am

Hi everyone, 

we registered a project as a Master Site in LEED v4 version and we would like to replace the WEc3 credit with the same credit of the LEED v4.1 version.

The credit can'...

Last reply: Maeve Donohue, May 11, 2022, 10:31 am

Unconditioned area- Baseline

CS-v4 EAc2: Optimize Energy Performance
posted by Sarah Leenknegt on May 11, 2022, 9:16 am


My proposed building has a number of unconditioned spaces (per definition according to Appendix G):

- basement: storage and technical area, with mechanical ventilation (the same...

Prerequisite questions for Minimum Energy Performance v4.1

NC-v4.1 EAp2: Minimum Energy Performance
posted by Isabel Santos on May 10, 2022, 11:24 am

For the prerequisite, can we obtain it, if we only achieve improvements on one of our indicators (Cost or...

Last reply: Isabel Santos, May 11, 2022, 4:27 am

Do Recycling Rooms need to be Negatively Pressurized?

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Nicole Pandolfo on Sep 21, 2017, 12:08 pm

Do recycling rooms need to be negatively pressurized to meet the requirements of Interior Cross-Contamination Prevention in LEED V4 now that recylcing rooms must include the collection of...

Last reply: Christoph Keck, May 11, 2022, 4:18 am

Option 3- Product Manufacturer Supply Chain Optimization

CI-v4 MRc5: Building product disclosure and optimization - material ingredients
posted by Edgar Arevalo on May 10, 2022, 4:24 pm

Has anyone been able to tackle the third option for this credit, which is not shown in the BPDO calculator?

I look at the template on LEED Online for this credit, and it says for this...

90.1-2010 AEDG?

Retail-CI-v4 EAc2: Optimize Energy Performance
posted by Vanessa Nelson on May 10, 2022, 3:25 pm

Has a 90.1-2010 AEDG been published yet or is 2004 the most recent? Thanks

Existing Ice Machine

CI-v4 WEp1: Indoor water use reduction
posted by Michelle Rosenberger on Aug 22, 2019, 1:41 pm

The Prerequisite is pretty explicit that it only applies to newly installed fixtures. What happens if the ice machines are existing?

Last reply: Michelle Rosenberger, May 10, 2022, 11:11 am

PM-10 Testing

NC-v4 EQc4: Indoor air quality assessment
posted by Robert Cashins on May 9, 2022, 5:02 pm

What method of testing have people used to measure airborne PM-10 dust required as part of V4 IEQ Credit 3.2?

Is real time monitoring acceptable?

What specific methods have been...