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Using LEEDv2009 form to insert 'other' refrigerant

NC-v4 EAc6: Enhanced Refrigerant Management
posted by Kavita Suresh on Apr 19, 2020, 3:22 am

The refrigerant used on my project is not listed in the LEEDv4 form and as recommended on the FAQ section for this credit I am using the LEEDv2009 form to document compliance.

When I...

Last reply: Kristen Callaway, May 12, 2020, 7:23 am

Site with a mix of developed and undeveloped areas

NC-v4 SSc4: Rainwater management
posted by Ricardo Sá on May 12, 2020, 5:22 am

Dear All,

Option 1 requires on-site management of the runoff from the developed site for the 95th or 98th percentile of local rainfall events.


Difference between Reference Guides of BD+C and ID+C

LEED Rating System Selection
posted by Thomas Tran on May 11, 2020, 11:15 pm

Dear All,

We are working on a Campus project comprising of a BD+C building and ID+C building (v.4). Right now, we're using the reference guide of BD+C for all buildings that we are working...

"20 Different permanently installed products"

NC-v4.1 MRc2: Building product disclosure and optimization - environmental product declarations
posted by James Keohane on May 11, 2020, 10:18 pm

Question about how to apply the requirement for "20 different pemanently installed products"?  Can I for example use more than one paint type from Sherwin Williams?  Pushing the thought further...

Last reply: James Keohane, May 11, 2020, 10:30 pm

Occupant Comfort Survey and Students

Schools-NC-v4 INc1: Innovation
posted by Bryna Dunn on Oct 16, 2019, 3:55 pm

In v4, the innovation credit language states: "The responses must be collected from a representative sample of building occupants making up at least 30% of the total occupants."  In past versions...

Last reply: Bryna Dunn, May 11, 2020, 4:12 pm

VOC Limit Table

Schools-NC-v4.1 EQc2: Low-emitting materials
posted by Katie Felver on May 7, 2020, 9:07 pm

Where is it possible to find the current reference for the...

Last reply: Deborah Lucking, May 11, 2020, 12:15 pm

Flooring under LEED v4- Less stringent than LEED v3?

NC-v4 EQc2: Low emitting materials
posted by on Apr 12, 2020, 5:09 am

For LEED v4, so long as the flooring is tested for...

Last reply: Neil Rosen, May 11, 2020, 11:57 am

Deadline to respond to preliminary review

LEED Reviews: Appeals, Design/Construction Submittals, and more
posted by ZHANG Yating on May 10, 2020, 1:29 am

Hi LEED Users,

I am facing an urgent problem. Our team has received Preliminary Review for our project ( LEED V4, CS ) two months ago, for some unforeseen reason,we miss the received and...

Daylight Control In Hotel Rooms

NC-v4 EAp2: Minimum Energy Performance
posted by Ricardo Sá on May 8, 2020, 1:12 pm

Dear All,

Regarding the mandatory requirements of ASHRAE 90.1 for automatic daylighting control.

Our project is a hotel and bedrooms have large windows, so the ...

Last reply: Ricardo Sá, May 11, 2020, 6:58 am

EDP database- useful format

NC-v4 MRc2: Building product disclosure and optimization - environmental product declarations
posted by Przemysław Rejczak on May 6, 2020, 12:05 pm


I am looking for a EPD database for Eurpoe with some useful format such as CSV, so I can use it to calculations

Do you know if such database exist and how to get it?


Last reply: Hudai Kara, May 10, 2020, 2:34 pm