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

Hi SDL: sorry to send another missive so soon but I wanted all to be aware of a great new effort just announced today coming from Greg Kats and Vivian Loftness among others - The Smart Surfaces Coalition. This effort brings together resources and research around city-scale resilience. "The Coalition is committed to the rapid, cost-effective... Read more

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

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

Greg Calnago

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

Welcome to the quiz portion of Are Cool Roofs Green? The Answer's Not Black and White

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


1. Explain why roofing choices are complicated by heating tradeoffs, climate effects, and condensation and how cool roofs are intended to reduce... Read more

I suspect that some of you have already seen this or already signed it, but just in case, for your consideration:

Add your voice to the powerful chorus for climate policy and sign the LEAD statement.

More than 500 sustainability professionals have now signed, and the number is growing! 

To learn more about this: please read... Read more

Hello SDL-ers - 

The SDL Climate-Smart Wood Group hosts a monthly online forum for builders all over North America who care about wood - and if that sounds like you, you're invited! As builders, we want to advocate for the conscientious use of wood as part of a holistic commitment to climate justice and resilience. We have been meeting... Read more

CEUs are available for reading our entire plumbing guide. Click here to learn more and take the quiz.

Excess heat generated by air conditioners, refrigerators, boilers, and water flowing through pipes typically goes unused.

BuildingGreen-Approved Water Heat Exchangers

BuildingGreen lists desuperheating technologies and... Read more

Hi, curious if anyone in the group has considered using Fitwel in an existing (built) school project (K-12). 

Would be interested in hearing your experiences and if this tool is a good fit for this type of project.

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

Greetings friends.  Our leadership has decided to create a partner-position to my role but in the engineering group of our firm.  This person would be a key ally in my work improving the high performance and sustainability of our projects with a focus on high-performance mechanical systems, net-zero, electrification, etc...  If you are... Read more

Hi All,

I wanted to share an exciting opportinity with this esteemed group: Placetailor is seeking out a Mechanical Engineer to add to their growing team. They are located in Boston, MA and focus on Passive House, Low-energy Design, and they have for two years running meet the tenets of the AIA 2030 Commitment! This is an exciting place... Read more