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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...

Parking Lots at undergraound at the basement

NC-v4 LTc7: Reduced parking footprint
posted by Stephan Zweig on Oct 5, 2022, 4:33 am


I have following question:

If in a project there are parking lots in the building at the basement, can this project be eligible for the credit “reduced parking”?


Last reply: J Schütz, Oct 7, 2022, 5:19 am

BD+C MAJOR RENOVATION- How is mahor renovation defined?

LEED Rating System Selection
posted by Stephan Zweig on Oct 5, 2022, 4:29 am


For rating system BD+C Major Renovation: How is Major Renovation Defined? Is there a proving document required to upload  to state that the existing building is under MAJOR...

OPR and BOD docunets

LEED Reviews: Appeals, Design/Construction Submittals, and more
posted by Stephan Zweig on Oct 5, 2022, 4:13 am


at the LEED on line platform for the LEED Documentation do we need to upload the documents

Owners Project Requirements (...

Time Frame for LEED Precertification and/or Deadline to submit narratives after Preliminary Review!

LEED Reviews: Appeals, Design/Construction Submittals, and more
posted by Amjad Ali H Ahmadalshteihi on Oct 3, 2022, 3:37 am

Deal LEED fellows, 

we have receivedPrecertification Preliminary Review on 19.09.2022 from LEED and some credits are not rewarded with any points and states beside it that it is still...

How does this apply for already constructed buildings and sites?

Hospitality-NC-v4.1 SSc2: Protect or Restore Habitat
posted by Dasaraden Mauree on Sep 13, 2022, 8:06 am

Hello all,

We are currently working on a project which will undergo a complete renovation and the project is aiming to reach the LEED Platinum level.

The project covers a whole...