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NC-v4.1 MRc4: Material Ingredients
posted by Christoph Keck on Aug 16, 2022, 8:37 am

Hi everyone,

the project I am supporting at the moment is following the alternative international compliance path where we have to meet the 100ppm REACH criteria.

In v4 they added...

Last reply: Tristan Roberts, Jun 14, 2023, 11:25 am

Which version of V4.1 should I follow? Do older versions of V4.1 become obsolete when a newer version is released?

NC-v4.1 MRc4: Material Ingredients
posted by Sara BENLOUBA on Apr 6, 2022, 11:12 am

Dear all,

We have a project registered on the V4 version of LEED.

We are in the process of specifying products for the construction company to install during the...

Last reply: Tristan Roberts, Jun 14, 2023, 11:24 am

Screening Date vs. Publish Date vs. Expiration Date for HPD

NC-v4.1 MRc4: Material Ingredients
posted by James Keohane on Jul 1, 2022, 2:37 pm

I recently received a rejection comment for an HPD:   Reason given - Publication Date (01/25/22) is after the projects construction period ended( 12/01/21).  This particular product has a...

Last reply: Tristan Roberts, Jun 14, 2023, 11:22 am

Hazardous ingredients

NC-v4.1 MRc4: Material Ingredients
posted by Aleksandra Suchomska on Nov 16, 2022, 9:04 am

If a manufacturer provides an inventory of all potentially hazardous ingredients (up to 100ppm) but omits ingredients that pose no risk and does not list them, does the report qualify for Option...

Last reply: Tristan Roberts, Jun 14, 2023, 11:18 am

Daylight Study- Approach for partial wall coverings / multiple materials

CI-v4.1 EQc7: Daylight
posted by Yarden Harari on Dec 21, 2022, 10:55 am

Hi All,

Has anyone come across a project that has multiple treatments on a wall (like an acoustic band), or multiple flooring finishes that are similar in shade / reflectance values?

...

Last reply: Lenka Matějíčková, Jun 14, 2023, 8:22 am

Measurement regard outside air measurement

EBOM-v4.1 EQp1: Minimum Indoor Air Quality
posted by Michael Ling on Jun 14, 2023, 5:11 am

Hello LEEDusers, I have a project which consist a typical office building in Hong Kong, each floor contain 2 PAU which contain 200L/s flow rate, the building is not very large each floor consist...

Manufacturing energy and water consumption

EBOM-v4.1 EAp3: Energy Performance
posted by Salomee Hinque on Jun 8, 2023, 11:34 pm

Dear all,

I have a manufacturing project which is LEED BD+C certified and going for recertification under LEED O+M v4.1. On the ARC platform, does the energy and the...

Last reply: Dave Hubka, Jun 13, 2023, 9:41 pm

Restaurant on ground floor of building

EBOM-v4.1 MRp3: Waste Performance
posted by Sareet Benayahu on Apr 27, 2023, 7:18 am

Hello, we are doing an ...

Last reply: Ana Lucia Granda, Jun 13, 2023, 4:11 pm

LEED Library Missing Multifamily Pathways for Option 3

EBOM-v4 LTc1: Alternative Transportation
posted by Ashley Wisse on Jun 13, 2023, 10:23 am

Neither the USGBC LEED Library nor the first printing of the reference guide include the Multfamily Pathway for Option 3; therefore, this pathway is nearly impossible to locate without...

Outdoor Water Use credit- LEED V4.1

NC-v4.1 WEp1: Outdoor water use reduction
posted by Maria Farah on Mar 24, 2023, 9:12 am

In LEED BD+C: New Construction V4.1, the outdoor water use reduction credit (2 points) states that alternative water sources can be used to achieve an additional 30% reduction. However, unlike in...

Last reply: Laurie Johnson, Jun 12, 2023, 12:26 pm