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Filtering mixed return and outdoor air

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Zeynep Cakir on Jun 6, 2024, 9:52 am

Is it acceptable to filter mixed return and outdoor air instead of outdoor air only? In our case, huge industrial ventilation systems provide fresh air to a yarn factory. The ventilation systems...

Last reply: Andrey Kuznetsov, Jun 7, 2024, 5:52 am

Carbon Offsets & Annual delivery

CS-v4 EAc7: Green power and carbon offsets
posted by Sustainability & Commissioning on Jan 31, 2024, 4:31 pm

Hi all, 

On one of my Core & Shell projects, the quantity of Carbon offsets required seems to be so small that the suppliers are not willing to contract for an annual supply of the...

Last reply: Samuel Sura, Jun 6, 2024, 5:23 pm

Air Testing: Particulate Matter

NC-v4.1 EQc4: Indoor air quality assessment
posted by Daniel Smith on Jun 1, 2020, 2:10 pm

Hi all,

I'm having difficulty understanding what Concentration Limit to apply for Particulate Matter (PM10 and PM2.5) under V4.1 BD+C.

For PM10, does an ISO 14644-1:2015 limit apply...

Last reply: Collin Robinson, Jun 6, 2024, 2:31 pm

Storage of Chemicals to avoid Cross-contamination in Labs

NC-v4 EQc1: Enhanced indoor air quality strategies
posted by Joyce Kelly on Feb 27, 2018, 7:37 pm

I'm recommending that chemicals delivered to Labs should be stored in vented Chem. cabinets with 0.5cfm psf to create neg. pressure with respect to the rest of the Lab. Then, chemicals in use are...

Last reply: Grace Heraly, Jun 6, 2024, 1:51 pm

Copy/Printing Room- Client against adding a door

CI-v4 EQc1: Enhanced indoor air quality strategies
posted by Edgar Arevalo on May 29, 2024, 12:03 pm

I am working on a CI project where the client is against putting a self-closing door (or any door for that matter) to the copy/printing room inside the project space.  Typically, I have ran into...

Last reply: emily reese moody, Jun 5, 2024, 7:56 pm

Percentage of occupancy for the Indoor Water Use Reduction Calculator for the prerequisite- project only has ADA restrooms.

CI-v4 WEp1: Indoor water use reduction
posted by Laura Castro Montoya on Mar 27, 2024, 7:39 pm

Currently, I am conducting certification for an office project, in the commercial interiors mode, which only has ADA restrooms within the LEED boundary. The majority (95%) of users will be using...

Last reply: emily reese moody, Jun 5, 2024, 7:54 pm

Credit numbers

LEED v5 BD+C/ID+C: Overall and Appendix Public Comments
posted by Michelle Robinson Schwarting on Apr 25, 2024, 4:10 am

For the 94% of the world that do not have English as their native language, the LEED consultants typically translate the LEED scorecard into their native language.  When developers work with...

Last reply: Cynthia Kaplan, Jun 5, 2024, 6:28 pm

General v5 Suggestions

LEED v5 BD+C/ID+C: Overall and Appendix Public Comments
posted by Dave Hubka on Apr 29, 2024, 4:12 pm

1. It is my opinion that sustainability should never be a secret. Please offer the public the same training/resources that are provided to...

Last reply: Cynthia Kaplan, Jun 5, 2024, 6:25 pm

First public comment draft of LEED v5 BD+C/ID+C: Overall and Appendix

LEED v5 BD+C/ID+C: Overall and Appendix Public Comments
posted by Nadav Malin on Apr 2, 2024, 1:39 pm

Share your comments on the first public comment draft of LEED v5 BD+C/ID+C: Overall and Appendix section on this forum. You can either reply to this thread or use the "Post a Question/Comment"...

Last reply: Leanne Conrad, Jun 5, 2024, 5:56 pm

Composite Wood- CARB Phase II

NC-v4 EQc2: Low-emitting materials
posted by Brad Newkirk on Jul 24, 2018, 7:49 pm

Does plywood that meets...

Last reply: Catarina Costa Goncalves, Jun 5, 2024, 11:34 am