Mary Ann Lazarus

Hello all,

My name is Stephen Messinger.  Thanks for including me in the group.  I am excited to get involved.  Glad to see some familiar and amazing names on this list.  

A little about me: I am born and raised in Massachusetts.  I live in Jamaica Plain (Boston) with my wife Lauren and two amazing daughters (Penelope, 4.... Read more

CEUs are available for reading all the building-envelope product guides and primer. Click here to learn more and take the quiz.

Vapor retarders are meant to protect our building assemblies from getting wet, but they can also slow drying, contributing to mold and structural degradation.

BuildingGreen-Approved Vapor Retarders

For more than 30 years, Alex Wilson has been the most trusted voice on energy efficiency and environmentally responsible design and construction. Since launching Environmental Building News (EBN) in 1992, he’s built a reputation, resources, and staff to provide the foundation for BuildingGreen, a consulting and information company... Read more

Dear Colleagues,

I proposed CarbonCure for a project and the structural engineer in the meeting was opposed to it. He later sent me detailed reasoning by email. I have not used this technology and would like to hear other more experienced opinions on the technology. The project we are working on is well integrated with climate, 99% sDA,... Read more

Our Green Team is holding a Biophilic Design workshop on Earth Day with our own staff for biophilic interventions within our office space. We are referencing the Biophilic Design Guidebook from LBC but it will be a shorter time frame, about 1.5 hours total. Last summer we introduced biophilia to the office through the exercise where each person... Read more

I'm happy to announce the Call for Presenters for this year's Gulf Coast Green, taking place in Houston May 17th.  Our theme is Crossroads: Inclusive Exchange.  We are especially seeking presentations that focus on how design can engage the community and foster social bonds and social justice.  I’m sure many of you have work that is relevant,... Read more

Hi Green Gurus!

We’ve gotten GREAT feedback and input from many of you via the survey about our planned fall events. You expressed a lot of interest in all the events we proposed: a series of in-depth Integrative Design Jams, separate Summits for SDL and SCL, and regional all-network workshops, starting with one in Boston—so we’re moving... Read more

Hi All,

The National Architectural Accrediting Board is currently undergoing review and revision of its “Conditions for Accreditation and Procedures for Accreditation.”

I recently attended the 2019 Reynolds Symposium: Education by Design, hosted by the University of Oregon in Portland. At the Symposium, a group of 100... Read more

For those of you working in jurisdictions with both prescriptive and performance-based commercial energy code pathways, roughly what percentage of your projects are using the performance pathway? How do your project teams decide which pathway to follow?

In Minnesota we are seeing very few projects pursuing the performance pathway,... Read more

Hi All,

I'm teaching a class this semester at CU Boulder on Zero Carbon Buildings and Cities (a new class that I'm making up as I go). The hardest part, I'm finding, is locating some good materials that cover the basics of energy efficiency for non-building engineers or designers (we are energy and sustainability generalists in this... Read more

Hi All- I will be starting bi-weekly mtg for the PFAS working group to align on our goals as consicous firms and finalize our message aka 'letter to manufacturers' for reducing PFAS in building materials. Please email me (pgupta-garg@wrnsstudio.com) to let me know if you are interested in being a part of the group. First mtg will be next week... Read more

Hello SDL friends,

It has been an amazing opportunity to collaborate with so many of you through this group or through my work with Tally, the USGBC, ILFI, and in my role as an environmental researcher at KieranTimberlake. This is not so much a goodbye as it is a "hope to see you soon." I am making a shift away from building design into... Read more

Welcome to the quiz portion of Natural Ventilation: The Nine Biggest Obstacles and How Project Teams Are Beating Them

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


1. Explain the primary reasons to design a building for natural ventilation.
2. Understand how cost, comfort... Read more

Has anyone heard of floating solar technology? I can't think of an application other than covering power plant retention or agricultural waste lagoons. Covering up the sun on a natural body of water and adding electrical wiring seems like a bad idea. I am curious though if others have heard of this technology and have other (unbiased) ideas... Read more

Trillian Dent

Hi Green Gurus (esp. Sustainable MEP leaders...)

I'm looking for suggestions of contacts for MEP consultants, especially in the Chicagoland region, ideally with sustainability highly integrated into the work, specialization in geothermal systems, and indoor agriculture. (doesn't necessarily have to be all-in-one)

For context, we... Read more