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LEED project with laboratoria

LEED Rating System Selection
posted by Ydo Schuuring on Nov 14, 2019, 7:49 am


For a possible LEED v4.1 new construction project I need to determine which LEED scope is applicable. The project contains of offices and Laboratories.

I can't find...

Last reply: David Posada, Nov 14, 2019, 8:45 pm

Lift Cycle Analysis

CS-v4 MRc1: Building life-cycle impact reduction
posted by Guillaume Rose on Nov 8, 2019, 11:11 am


When i read the leed v4 referential, we see that for the life cycle analysis, only the products that are measured with surface calculation are taken into account in the calculation...

Infra-red electronic basin mixer

CS-v4 WEp2: Indoor water use reduction
posted by Hatice G. on Oct 28, 2019, 7:59 am

Dear all,

in our office project we will use public lavatory restroom faucets that has infrared sensors which detects hand movement. So water only runs when it’s needed. In this...

Last reply: emily reese moody, Nov 6, 2019, 10:57 am


Passive House Discussion Forum
posted by Mélanie Bouchenez on Oct 11, 2019, 6:39 am


I work on LEED projects in France. The LEED repository specifies when the requirements can respect local standards. Is there a list of French local standards accepted by the USGBC...

EAp2-Energy Modeling_ Natural Ventilation/cooling Equivalent in Baseline models?

Mid-Rise-v4 EAp1: Minimum Energy Performance
posted by Claudio Leon on Oct 10, 2019, 4:02 am

Dear all,

As many of you may know, up until now ROS such as office rooms (Office), Bedrooms(Residental), etc. are not required to be mechanically cooled and sometimes not even ventilated...

Completed scope of Cx cycle prior to date of application

EBOM-v4 EAc3: Ongoing commissioning
posted by Christian Bösselmann on Sep 11, 2019, 10:46 am


We´d like to prove implementation of the EAc2.3 in an Office Tower according to LEED O+M v4. 


Last reply: Christian Bösselmann, Sep 16, 2019, 2:43 am

PUE calculation

Data-Centers-NC-v4 EAp2: Minimum Energy Performance
posted by Marion THIBAULT on Jul 19, 2019, 5:14 am

Dear LEED user,

Someone could tell me, the value that i have to compare to the...

Last reply: Tyler Thumma, Sep 12, 2019, 1:45 pm

Increase of cost by percentage when applying LEM credits

NC-2009 IEQc4.1: Low-emitting materials - adhesives and sealants
posted by Claudio Leon on Aug 5, 2019, 12:02 pm

Hi all,

what would you estimate as a cost increase (percentage wise) in a project budget when applying all four LOW EMIITING MATERIAL credits for a multifamily midrise residential project...

Heated Only Residential Zones in 90.1 Appendix G

NC-v4 EAp2: Minimum Energy Performance
posted by Omer Moltay on Jul 22, 2019, 7:18 am


This has been bogging us for a while, as we cannot figure out how to interpret the various issues in ASHRAE 90.1.

If in a multifamily building the residential units are only...

Last reply: Marcus Sheffer, Jul 22, 2019, 6:09 pm

Building a new hotel in extension of an old one

LEED Rating System Selection
posted by Marion Touaux on Jul 17, 2019, 6:52 am


I am a bit confused regarding which rating system I should register a project into. The project is to build a new hotel right (about 50 keys) next to an existing...

Last reply: Michelle Rosenberger, Jul 19, 2019, 2:38 pm