Hello, what acceptable levels of air quality are you using to evaluate natural ventilation strategies for your projects?  In our Living Building we only open windows when PM10, PM2.5, etc. are within LBC and WELL limits.  In a seasonally smoggy urban environment, this limits how often we can utilize natural ventilation even if the outside... Read more

We're looking to expand our design performance group - let Peter or me know if you have someone to recommend to us! Here's the description. 

Welcome to the quiz portion of 20 Ways to Advance Sustainability in the Next Four Years!

Learning Objectives
Upon completing this course, participants will be able to:


Identify the challenges to green building during a time of environmental urgency and political unrest, and find opportunity in these challenges.

... Read more

It’s here! By popular demand we’re re-running the SDL Salary Survey that we last ran in 2015. 

This is for people who are currently in an SD Leader role at a firm. We’re sending this invitation out on both the Green Gurus and the SD Leaders forums, because some of you are still in transition and haven’t moved into the SD Leader forum yet... Read more

Hello. Has anyone tackled "tracking emissions from all company-purchased cloud computing" yet? This is in the best category for CC 2.0 and wanted to ask.

How "deep" did you go? 

This was an interesting read, but still left me a little confused about how far I need to go and even what questions to ask:   

https://medium.com/... Read more

Hi everyone,

Since I know we have a lot of talented people in this group, I'd like to reach out to those of you based in Los Angeles and see if anyone is interested in talking at an upcoming Living Building Challenge collaborative event.  The topic of the meeting is "Selecting Healthy Materials 101: From the perspectives of... Read more

Hello Green Gurus,

We’re happy to see the first round of summit registrations rolling in! We’ve had lots of questions about specific topics for the sessions. As usual, the agenda will be based on topics that are top of mind for you.

Whether you are already registered or not, please fill out the Pre Summit-Palooza Survey to help us... Read more

The EC3 Tool has come up quite a few times in the Green Guru's conversations.  We're hosting an online review with Stacy Smedley and Mark Chen from Skanska.

Wednesday September 29th at 3pm PST

The tickets are free and this will be a Teams meeting.

https://www.eventbrite.com/e/using-the-ec3-tool-the-why-and-how-tickets-...... Read more

Has anyone had any success with achieving the LEED Building Envelope commissioning points with an alternative compliance path using the requirements of the PHIUS verifier? It seems like an unnecessary duplication to ask the client to pay for a BECx agent and a Passive House verifier. Or am I missing something? I can't find any LEED... Read more

For any of you who are already tracking your Scope 1, 2 & 3 emissions: Do you do so through a program (like the Carbon Disclosure Project) or do you have an in house excel file or ???? I'm looking for a good template and am open to suggestions.  Looking for what you like and what you find challenging.  Thank you.

Hello Green Gurus,

Here is the information for October's Peer Networks Webinar, How to use the Building Environmental Justice Tool for your next project. We hope you will join us!

Register HERE

How to use the Building Environmental Justice Tool for your next project
Monday, October 24, 2022
2 - 3pm ET (11am -... Read more

Food waste is a major source of greenhouse gas emissions from landfills due to methane released during anaerobic decomposition.

BuildingGreen-Approved Composters

BuildingGreen approves in-vessel commercial composters, which require the smallest footprint and are most likely to be suitable for a densely populated area.

Why... Read more

Hi All,

I will be catching up on learning units over Thanksgiving weekend and I am wondering if anyone else is experiencing the challenge of credential maintenance of their CPHD? Ideally we would have a client go for Passive House accreditation on a project, but lacking that, how are folks maintaining their 20 credits per year? For... Read more