Has anyone seen a comparison between IECC 2021 and previous versions of the energy code, including ASHRAE 2010? I'm curious how far ahead code buildings are relative to LEED v4.0, and how much the latest IECC raises the bar relative to the previous. I did a quick search for the LBNL and other studies that look at this, but didn't see anything... Read more

All,

I am on the Board of an Environmental organization in the Catskills (The Catskill Center for Conservation and Development https://catskillcenter.org/).  We are trying to develop a policy on siting of clean energy projects.  For example, we know of one town that bans PV's that can be seen from the road, another is a proposal to... Read more

Do any of you have experience with Design For Freedom yet? It came to my attention and I'm trying to investigate. I would love to hear feedback and experiences that you may have at this point. It seems like an opportune moment for this issue of forced labor (yikes! so much I don't know...) to come to the forefront, and I'm curious to hear how... Read more

This is sort of dragging up an ancient topic, but curious how your firms are currently addressing accreditation (LEED AP, WELL AP, LFA, etc.). There was a time when we were all talking about this, and a number of firms instituted requirements, but it has been a long time, and I'm curious how it's looking now in 2024. Thanks! 

Mass Timber Construction: An Economic Study of Supply, Best Use, and Implementation in three North American regions

This series unveils a macroeconomic study of building with mass timber in three U.S. regions; the Upper Midwest, Rocky Mountain Colorado, and the Southeast. 

Three companies - SCB Architects, LeMessurier, and Turner... Read more

Hi SCL,

I realize that there are already a couple of threads on this topic, but I didn't see anything from the past year.  We have been trying (unsuccessfully) to work with large rental companies to request jobsite trailers that are at a minimum energy efficient, and ideally solar/battery ready and/or built to passive house or similar... Read more

Hi Friends - I'm sure you've started to see news and posts from personal contacts about the shortage of masks, gloves and other PPE for hospital workers. Our company GCI General Contractors is pulling what we can to donate locally. Please urge your leadership to do the same! I just talked with a dear friend who is an infectious disease... Read more

Hello fellow SCLers,

Last year I was approached by Green Advantage, remember them from like 2005? There has been a LEED innovation credit for as long as I can remember.

Has anyone employed Green Advantage recently? Is anyone asking for it? Do clients pay for the training, is it an investment by your company, and/or a cost passed... Read more

Hi SDL'ers, as promised I am sending information about how to support getting flame retardants out of foam insulation. I am attaching a draft letter to Foam Manufacturers, an intro to that letter giving some background and a list of From manufacturers.   Thanks, please contact if you have any questions.   Larry Strain, Siegel & Strain... Read more

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For folks in the Southern New England, New York City area, I wanted to let you know about this interestesting design summit that is focusing on eliminating forced and slave labor in the building materials supply chain. I am not involved in organizing the summit, but I plan to attend. It is at Grace Farms in New Canaan, CT from 9:00 to 5:30 on... Read more

Allison Mears at Parsons asked me to share this.  Several folks on this list participated in these recordings.  The courses are comprehensive.

Parsons Healthy Materials Lab has created a series of online learning courses specifically designed for professionals like you, dedicated to making the built environment the best (and healthiest... Read more

BuildingGreen recommends low-emitting acoustic ceilings that do not contain formaldehyde resins or PVC coatings. Look for those that have C2C Silver or Gold certifications, are Declare Red List Free, and are third-party certified for low emissions using CDPH Standard Method. We also prefer wood ceiling products with FSC certification. The... Read more

Welcome to the quiz portion of Whole-Building Life-Cycle Assessment: Taking the Measure of a Green Building.

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


1. Define key concepts of whole-building LCA.
2. Recognize the inherent flaws, and potential gains, of whole-building LCA... Read more