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

Standard spray polyurethane foam (SPF) insulation is made using blowing agents with extremely high global warming potential (GWP), which can cancel out much of the potential energy savings from use over its life... Read more

Welcome to the quiz portion of Downscaled Climate Data: Where to Get It and How to Use It.

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


1.  Define “downscaled climate data” and understand where to find it and how to apply it in modeling to achieve greater environmental sustainability and... Read more

Hi all, hope you're keeping safe and healthy. I'm thinking about protocols to put in place on jobsites related to COVID-19 in addition to our IAQ plans. Wondering if anyone's company has started to layout specific protocols, PPE, etc. and is willing to share.

What got me thinking was this article from Prof. Joe Allen at Harvard about... Read more

The NYC SDL Group met to discuss the recent SDL Summit Report. The North Star tenant "About the well being of all species" spurred discussion of an example of building's impact on other species: bird collisions. Links to some resources to address this issue are below. Feel free to ask me and/or Stefan Knust about it. We would be more than happy... Read more

Some of us SDLers saw a need to create an online repository for the best simulation graphics and created IBPSA Project Stasio over the last couple of years. Along side graphics is a list of simulation questions (in progress) that we as architects may not know we could ask. The graphics are linked to answer the questions so our simulation... Read more

Hi, I've been following the copper piping discussion and am wondering if copper piping has been a problem in greywater systems.    We've used Aquatherm to some extent in greywater treatment.

Hi all - I wanted to see if anyone will be in the Chicago area for the upcoming ASHRAE conference (21-23rd) and is interested in an informal meet-up? Or if you aren't going but are already in the Chicago area? Let me know and I'll see if we can organize meet-up!

Opal Mao Mannella-Durante

Hi Everyone -

I just received this note from Don Horn at the GSA (Deputy Director, Office of Federal High-Performance Buildings):

"Here's another installment of our work to reduce emissions through GSA's actions. GSA issued a press release this morning announcing our new standards for low carbon concrete and environmentally... Read more

Do you know something about power purchas agreements, on or off-site?  I understand that they are legal in Washington and Oregon, where most of my projects are, but I haven't come across anyone who has used one on a project.  If you have some experience or expertise, it would be great to hear from you.  

Hi all,

I'm trying to figure out how to use this CLF MEP calculator tool that is downloadable from the CLF website. Please see screenshot attached - does anybody know what they are asking for as an input?

"Custom quantities input: The user can enter custom quantities on this tab and produce numerical results. For data input fill '... Read more

Welcome to the quiz portion of Circular Economy at Scale: Six International Case Studies.

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


1. Define circular economy and explain its importance within the built environment.
2. Describe how to leverage long-term value over first... Read more

Our high performance consulting team is frustrated by project teams that regularly fall back on outdated rules of thumb in their system and equipment sizing. 

What challenges do you face in your work flow to limit oversizing and promote right-sizing?

By the way, Roger Chang, our literature search on the subject turned up an eleven... Read more

Hi Everyone!

I am now in my last week in the Bay Area, and in my last three weeks at (my first 15 years at) SERA, as I will be leaving on my extended sabbatical at the end of April!

I will miss following this group's dialogue, and will especially miss attending the summits for the next couple of years! 

My colleagues Mark... Read more

Hey Green Gurus!

Exciting news—STO Building Group, the #3 green builder in the U.S., is hiring a Sustainability Analyst in Boston! We're looking for someone passionate about data, who thrives on purpose-driven work, and wants to join a team of experts who are just as passionate about sustainability as you are.

If you're a data... Read more