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Comparison between the three systems BREEAM, DNGB LEED

LEED Rating System Selection
posted by Wisam Maddni on Mar 9, 2022, 4:03 am

Dear ladies and gentlemen,

I would like to ask this question: Are there currently properties that have several certification systems (...

Fog Installation on the rooftop

NC-v4 WEc1: Outdoor water use reduction
posted by Christoph Keck on Jan 25, 2022, 6:37 am


our project has a fog installation on it´s rooftop.

The water consumption of said installation would be 3,6 l/min.

Under which section or what credit is this taken into...

Last reply: Paula Melton, Jan 28, 2022, 9:25 am

Sound transmission- STC Rating- Specify

NC-v4 EQc9: Acoustic performance
posted by Stephan Zweig on Feb 14, 2019, 5:38 am

Hello Leed User community,

I am looking at the acoustic performance tool for LEED v4.

At the table for Sound transmission...

Last reply: Tracy Marquis, May 8, 2020, 12:51 pm

LEED v4 ASHRAE 90.1 Simulation- DES Option 1, Path 3. Streamlined Modeling

NC-v4 EAp2: Minimum Energy Performance
posted by Eduardo Vidal Kume on Apr 29, 2020, 7:31 am

Hi all, 

I Would like to use LEED v4 Reference Guide District Enery System, Option 1, Path 3 "Streamlined Modeling" for a Building that has both Disctric Heating and Cooling. The building...

Credit: Grid Harmonization

LEED v4.1 Discussion Forum
posted by Stephan Zweig on Jul 17, 2019, 7:08 am

Dear Leed User,

I have a question about the Grid Harmonization Credit:

If there is no...

Last reply: Konstantina Kalliakoudi, Feb 18, 2020, 2:37 am

Limits for VOC content outside US, additional questions

CS-2009 IEQc4.1: Low-emitting materials - adhesives and sealants
posted by Ernst Schriefl on Apr 17, 2019, 12:14 pm

All the limits on...

Submitting a credit during the review process which was not submitted at first application

LEED Reviews: Appeals, Design/Construction Submittals, and more
posted by Ernst Schriefl on Apr 17, 2019, 6:58 am

I have a general question regarding the review process:

Say, you have already submitted a certain amount of credits for review and received a preliminary review.

While some credits...

Last reply: Michael Smithing, Apr 17, 2019, 11:16 am

validity of LEED certificate (LEED-CS v2009); necessary period of USGBC membership

Performance Period
posted by Ernst Schriefl on Oct 1, 2018, 6:42 am

We are in the process of certifying several buildings under a campus approach (LEED Master Site D+C), where each building / project is certified unter the LEED-CS v2009 rating system.


Last reply: Trista Brown, Apr 11, 2019, 9:16 pm

Are Parking areas for Buses and Taxis included in Option 2

NC-v4 SSc5: Heat Island Reduction
posted by Stephan Zweig on Feb 21, 2019, 5:46 am

Hello to all,

Do you  have any suggestion if I have to include for Option 2 of heat island  reduction credit the following:

1) Parking lots for Buses?

2) Taxis waiting areas...

Last reply: emily reese moody, Mar 12, 2019, 9:31 pm

Sewage treatment plant used as alternative water source

NC-v4 WEc2: Indoor water use reduction
posted by Stephan Zweig on Feb 13, 2019, 7:15 am

Hello to all,

My building uses water for the toilets and for the irrigation from a municipally sewage treatment plan with biological treatment.

Does this source count as...

Last reply: emily reese moody, Feb 18, 2019, 2:16 pm