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Define available buildable space

NC-v4.1 LTc4: Surrounding density and diverse uses
posted by Cindy Cordo on Jan 28, 2021, 10:53 am

In BD+C-v4.1 LTc4, Option 1, Table 1a, in calculating the...

Water-resistant flooring

Homes-v4 MRp2: Durability management
posted by Alec Luong on Jul 26, 2020, 12:06 am

The credit states to "use water resistant flooring; do not use carpet." Is there a specific list of what LEED considers to be water resistant flooring? Or does the credit simply mean not to use...

Last reply: Tabenteh Tabenteh Tabe, Jan 27, 2021, 1:24 am

ASHRAE 90.1-2010 Mandatory Requirements in Existing Buildings

NC-v4 EAp2: Minimum Energy Performance
posted by Lauren Baumann on Oct 15, 2015, 10:21 am

EAp2 requires adherence to ASHRAE 90.1-2010 Mandatory Requirements at Section 5.4 and elsewhere. For an existing masonry building on a zero lot line, the R-11.4 continuous insulation required...

Last reply: Marcus Sheffer, Jan 25, 2021, 10:48 am

Furniture to include in LEM documentation?

NC-v4 EQc2: Low emitting materials
posted by Erica Downs on Jan 12, 2021, 10:36 am

Under v3, only systems furniture and desk/occasional seating were included.  Under v4/4.1, is ALL (non-permantly installed) furniture now included?  What counts as a piece of furniture?

Last reply: Deborah Lucking, Jan 22, 2021, 3:20 pm

UL Certified EPDs.

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Susan Di Giulio on Oct 12, 2020, 5:41 pm


'Way back in 2013, there was an announcement of a joint...

Last reply: Bipin Karki, Jan 22, 2021, 8:17 am

Bird Collision Deterrence – Performance Monitoring Plan

NC-v4 INc1: Innovation
posted by Verde Design on Dec 10, 2019, 10:49 am

I am currently developing a performance monitoring plan for the Bird Collision Deterrence Pilot Credit and have a couple of questions:

  1. The credit requirements states "List potential...

Last reply: Stephanie Graham, Jan 21, 2021, 7:12 pm

EQpc116- Daylight in nonregularly occupied spaces

NC-v4 INc1: Innovation
posted by Marie Bizzak on Aug 13, 2020, 3:55 pm

Can anyone please help me understand what is needed for Daylight in nonregularly occupied spaces, option 2? 


Last reply: Stephanie Graham, Jan 21, 2021, 6:49 pm

Pilot-Credits EQpc116: Daylight in nonregularly occupied spaces

NC-v4 INc1: Innovation
posted by Marie Bizzak on Aug 20, 2020, 9:13 am

I am working on Daylight in Nonregularly Occupied Spaces. The project is also pursuing Daylight in Regularly Occupied Spaces. My questions pertains to the definition of "Un/Occupied Spaces". LEED...

Last reply: Stephanie Graham, Jan 21, 2021, 6:39 pm

Fly Ash in Concrete

NC-v4.1 MRc3: Building product disclosure and optimization - sourcing of raw materials
posted by Catherine Blakemore on Jan 12, 2021, 4:50 pm

Does LEED v4.1 allow the use of fly ash in concrete mixes?

It was not allowed for LEED for Healthcare, 2009, don't see any specific stipulation in the LEED v4.1 BD+C rating system language...

Last reply: Tristan Roberts, Jan 20, 2021, 12:22 pm

ASHRAE 55-2010 documentation

NC-v4 EQc5: Thermal comfort
posted by Katie Vasbinder on Jan 19, 2021, 11:29 am

The Upload for this credit indicates "Documentation may include a psychometric chart, PMV/PPD calculations... Figure and/or Figure, or predicted worst case...". Given the amount...