Curious on stories when IAQ testing for LEED or WELL didn't come back with "all clear, everything's good" results we all hope for. 

I have a project right now where we are tracking down suspicious sources and look forward to telling the full story when it's done being written. 

Thought maybe this would be a good safe space to talk... Read more

As announced in last week's SDL/SCL Winter Summit, I have been working with a group of regional AEC professionals, industry stakeholders, and the New Buildings Institute on two code proposals to the 2021 Seattle Building Code that limit the Global Warming Potential (GWP) of concrete & steel in buildings over 50,000 sf (see attached).  We ... Read more

Welcome to the quiz portion of Finding Products for LEED v4 and v4.1!

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


Hi All,

As you know from the SCL Summit last year, I have been organizing a task group to create a draft of our SCL Contractor Commitment. We have come up with a short Tiered commitment draft as well as some best practices and challenges that led us to the commitment. I encourage everyone to take a look at the draft and please send any... Read more

Does anyone here have a draft spec for low embodied carbon concrete they could share? I see the GSA has a standards sheet with MGWP limits, but we are hoping to actually specify the mix for upcoming projects.

I've been hearing a lot of talk about density becoming a thing of the past. Like with the danger of antimicrobials, it would be great to have some more in depth backup information on whether density is really a danger factor, or if other factors are more important, when we go into these conversations. Does anybody have any new or better... Read more

Hi all,

Here's a good follow up to Maria's steel question on Monday.  We have a Midwest project that unfortunately (from a carbon perspective) is required to use a traditional, thick precast facade.  We’re working with the contractor and potential future (not yet bid out) fabricators to determine an appropriate % of pozzolanic material... Read more

Posting for Kira Gould: 

Since his death on August 27, 2021, Lance Hosey has been missed by our community. We miss his voice and his vision -- as well as his collegiality and humor. Now, Columbia Graduate School of Architecture, Planning & Preservation announced the Lance Hosey Scholarship Fund to Make Things Better. We are pleased... Read more

Hello, does anyone have experience with thin film solar? We're looking to add it to a city wide bus station application. Thanks!

Hello All! 

We are using TallyCat to extract quantities from our REVIT Model, and bring them over to EC3 to get a model GWP (focusing on material categories required to evaluate ILFI Zero Carbon certification).  There are a number of questions that are popping up!!

I am sure there are others trying the same thing, yes... maybe?! ... Read more

Show & Tell Breakout. Presentations:

Hello Green Gurus,

Here are all the details about our two Peer Network events in Chicago on Tuesday, June 21st. If you'll be in town, we hope to see you!

From 1-5pm we'll have the Chicago/Midwest Region Mini-Summit, open to members of any of the five Peer Networks (Sustainability Consultants, Community Design Leaders, Contractors... Read more

Hello Sustainable Design Leaders!

I have an exciting announcement today, fall Peer Network events are now open for registration! You can see all the event details and register here!

Based on feedback we received from past events and the most recent surveys, we decided against doing one long week of events for this fall and instead... Read more

Many wood panels are unsustainably sourced, and some have high formaldehyde emissions.

BuildingGreen-Approved Panels

Laminate panels approved by BuildingGreen:

Hi all, 

I'm looking for critical mass here. Do any of you have or know of clients who are requiring Just labeling for their consultants? I've heard that Google is asking this, and wondering who else might be on that course. Thanks!