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Detaining the rainwater runoff-an accepted solution?

NC-v4 SSc4: Rainwater management
posted by Florian Schmidtchen on Dec 8, 2016, 6:13 am

Dear all,
In our project we are planning to follow option 1 path 2. Therefor we provide underground-trench systems and a technical ditch on our project site, which gets inserted creatively...

Last reply: Drew Yetter, Mar 20, 2023, 2:54 pm

Switch Optimize Process Water use V4.1

CS-v4.1 WEc3: Optimize Process Water Use
posted by Michaël Briffaz on Dec 12, 2022, 8:22 am

Hi Everyone,

For a C&S project in LEED V4, I'm thinking to switch "Cooling Tower Water" in V4.1 "Optimize...

Last reply: Marelle Davey, Mar 20, 2023, 12:38 pm

Waling Distance 400 m or 800 m?

CS-v4 LTc5: Access to quality transit
posted by Stephan Zweig on Feb 10, 2023, 3:26 am

Dear all,

1) Does subway station as...

Last reply: Konstantina Kalliakoudi, Feb 13, 2023, 10:58 am

Powder coating mixed with water

NC-v4 EQc2: Low-emitting materials
posted by Caroline PIN on Mar 4, 2015, 7:51 am

Dear all,

Is powder coating mixed with water on the jobsite is wet applied products ? technically, the initial product is powder, it is not "wet". Is difficult to get information about...

Last reply: Bernard Canusa, Feb 5, 2023, 10:47 pm

Cooling tower (no refrigerants) and some small units (with gwp > 10)

NC-v4 EAc6: Enhanced Refrigerant Management
posted by Janine van den Kerkhof on Jan 30, 2023, 4:55 am

Hi all, 

Can we include the capacity of the cooling towers in the weighted average calculation? This will cover most of the cooling in our building. However we do need to include some...

Air Curtains in ASHRAE/IES Standard 90.1-2019

NC-v4 EAp2: Minimum Energy Performance
posted by Nima Soltani on Oct 29, 2021, 7:56 am

Recent ASHRAE/IES Standard 90.1-2019 Updates include the possibility of installing an air curtain system instead of installing a Vestibule / Revolving Door Entrance.

Can this ruling be...

Last reply: Jamy Bacchus, Nov 22, 2022, 8:52 pm

ventilation of corridors and elevator ante rooms

EBOM-v4 EQp1: Minimum indoor air quality performance
posted by Arwid Theuer-Kock on Oct 27, 2022, 4:54 am

Hi all,

we have an existing building in Germany where the corridors and elevator ante rooms are not ventilated mechanically. In addition there are also no windows for natural ventilation...

CxA Experience Validation

CS-v4 EAc1: Enhanced Commissioning
posted by Michaël Briffaz on Oct 19, 2022, 9:21 am


We would like to submit the experience and references for a...

Does LEED BD+C Core and Shell have disadvantages against ESG compliance?

LEED Rating System Selection
posted by Leonie Wipf on Oct 18, 2022, 11:09 am

For a new built office the most suitable rating system seems to be Core and Shell. Besides LEED certification the project should demonstrate ESG compliance. Does ist still make sense to get Core...

Enhanced acoustical performance- exterior noise control

Warehouses-NC-v4 INc1: Innovation
posted by Kathrin Wiedermann on Oct 13, 2022, 11:25 am


A german project is going to be buildt on industrial area next to a...