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Energy Modeling for Addition to Existing LEED NC-2009

NC-v4 EAp2: Minimum Energy Performance
posted by Joe Cavanaugh on Jun 24, 2020, 9:08 am

Our proposed project is to add about 30,000 square feet to an existing 55,000 square foot University science building.  The existing building is LEED Gold under NC-2009.  We hope to pursue LEED-...

Last reply: Marcus Sheffer, Jun 26, 2020, 9:17 am

Landscaping lighting

LEED v4.1 Discussion Forum
posted by Davide Liviero on Jun 18, 2020, 8:59 am

Hello everyone,

I am modeling an office building and i am encountering problems with the exterior lighting. I have two lights for the green area just outside of the office. I suppose I...

Total duration for a LEED v4.1 EBOM process

LEED v4.1 Discussion Forum
posted by Eric Bautista on Jun 15, 2020, 10:27 pm

This is for the purpose of providing our LEED proposal to a client. Anybody could help with citing the total recommended duration (in months) for a LEED v4.1...

any available LEED v4, v4.1 specification language?

LEED v4.1 Discussion Forum
posted by Courtney Royal on May 13, 2020, 12:21 pm

I was wondering if anyone has a resource with LEED v4 and/or v4.1 specification language?  The architect I am working with on a commercial interiors project does not have updated LEED spec...

Last reply: Courtney Royal, May 27, 2020, 8:12 am

Enhanced Refrigeration credi

LEED v4.1 Discussion Forum
posted by yen Huynh on May 21, 2020, 11:24 am

Can someone tell me how to fill out a Geothermal system for this credit?

Last reply: Cam Fitzgerald, May 26, 2020, 3:13 pm

Appendix 2: Default Occupancy Counts

LEED v4.1 Discussion Forum
posted by Elizabeth Hand on Apr 22, 2020, 1:11 pm

I am working on a Community Center that has been registered for LEED BD+C NC. The occupancy estimate of our project is currently unknown, and I am unable to reference a default occupancy count ...

Cradle-to Cradle Claims

LEED v4.1 Discussion Forum
posted by Bobby White on Apr 9, 2020, 9:56 am


I think I already know the answer to this, but to claim Cradle-to-Cradle credits on a manufactured product, the product as a whole has to be tested and not just the major component...

Last reply: Bobby White, Apr 9, 2020, 3:22 pm

LEED Green Associates Exam

LEED v4.1 Discussion Forum
posted by Alexis Stewart on Jan 22, 2020, 3:10 pm

I am taking the LEED Green Associates exam at the end of February. Any advice?

Last reply: Patricia Lloyd, Mar 30, 2020, 5:02 pm

Are there any Sunset Dates for v4.0 (since v4.1 is now active)? 2Qs

LEED v4.1 Discussion Forum
posted by Jenni Betancourt on Mar 23, 2020, 3:06 pm

I have a very large project that will not start construction until 2022 or 2023 and it will be under construction for several years. I therefore want to be careful about sunset...

A Study on the Implementation of Green Buildings

LEED v4.1 Discussion Forum
posted by Augustus C. on Mar 19, 2020, 12:36 am


I'm a Senior High School student currently working on a research related to the course I'm soon taking (engineering) and we're currently having difficulties with our research....