Hello Sustainability Leaders,

Great to see some of you at Greenbuild last week.  Thanks to all who responded to Nadav’s post-election blues post.  Lots of helpful insights and sentiments that left me very grateful to be part of this community.  On a related note, since the election I’ve been asked by people in our office and in life if... Read more

Hi Fellow GG: I just wanted to make sure everyone saw the great announcement from the White House yesterday about Code updates to address energy efficiency and resilience. It's great to see these kinds of initiatives that hopefully can continue for a few more years. So let's try to take advantage of them (said by someone who lives in Missouri... Read more

Has anyone here found an alternative to XPS for the void former?

A structural engineering contact was included in recent conversations about embodied carbon in insulation materials and brought to our attention that this is a common use for XPS that has nothing to do with its insulating properties. It is typically used where concrete is... Read more

Happy new year everyone!

My name is Vandita Mudgal, I am the first ever 'Sustainability Engineer (district)' for Hensel Phelps N. California district (covers Nor Cal and Pacific NW). As mentioned, this is the first ever sustainability position at Hensel Phelps, therefore I am developing a lot of processes and systems for our district... 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 have an exciting new addition to the Peer Networks Hub to share with you. The recordings of this summer’s 5 minute presentations are finally available! You can view the full list on the Resources Page in the Hub. Using the headings at the top, you can sort by presenter name, title, or the date or event at which the... 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

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

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 The Value of Variability.

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


1.  Understand why variability is important to the comfort and well-being of building occupants.

2.  Define “alliesthesia” and explain how it relates to the well-being of occupants... Read more

Are any of you working on projects that are pursuing the additional point for Indoor Water Use Reduction on a HC project via Table 4 Compliant laboratory and medical equipment? If so, what sterilizers are the projects using?

We are receiving pushback that the Sterilizer metric doesn't make sense. I am interested in any insight or a... 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

Interior luminaires often use inefficient, outdated technology such as compact fluorescent or halogen lamps, some of which contain mercury and have poor light quality and limited controls.

BuildingGreen-Approved Lighting

BuildingGreen lists lighting products using LEDs (light-emitting diodes) from manufacturers whose luminaires... Read more