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.

Hello everyone!

The Sustainable Design Leaders Summit will be kicking off with a Pre-Summit workshop in Seattle July 31st, 9am - 3pm. If you are interested in joining your peers for this workshop, please see the registration link below. Also, if you know someone in the Seattle area that would be good to have in the workshop and might be... 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

Sustainability leadership has requested that you take this quiz to help assess sustainability literacy across the firm. Your own results will be presented to you at the end of the quiz but will not be shared with anyone else. Only aggregated, anonymized results will be available to others.

Please don’t do research to inform your answers... Read more

Greetings, Green Gurus!  As many of you know, I teach a course at the University of Pennsylvania's Graduate School of Architecture, and one of my former students has just graduated from their and MS in Design - Environmental Building Design program.  She is looking for employment at a firm that has a focus on sustainability.  Unfortunately we... Read more

Hi everyone,

Happy new year!

The FIRST First Friday Fika* of 2024 is happening this Friday, January 5th from 11am to 12pm ET, hosted by Candace Pearson.

Here is the registration link for the Fikas, or if you've registered previously, you can use the same link for this week.

We look forward to seeing you Friday!

Welcome to the quiz portion of LEED 2009: The Missing Manual.

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


1. Stay abreast of changes to LEED NC-2009.
2. Understand the more ambiguous aspects of LEED NC-2009.
3. Explain key interpretations of LEED NC-2009.
4.... Read more

Hello SDL-ers - 

The SDL Climate-Smart Wood Group hosts a monthly online forum for builders all over North America who care about wood - and if that sounds like you, you're invited! As builders, we want to advocate for the conscientious use of wood as part of a holistic commitment to climate justice and resilience. We have been meeting... Read more

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

Shane, please confirm that there is a meeting this Friday (4/6) and if the time is 3:00 ET. We plan to have at least one member from our team there. Also, please forward the links/numbers for joining the meeting.

It would be helpful to know any questions you have ahead of time (if possible) so we can bring answers and what portion of... Read more

Does anyone share the same feeling of stagnation? We are supposed to hit 80% pEUI reduction now and working towards 90% mark, but I don’t see it happening for majority of our projects, even the “right” ones that we implemented integrative design process & iterative energy modeling. I am wondering whether anyone would be willing to share... Read more

Team SCL,

This was a tough week. My husband coined a phrase "20% laid off."

Unfortunately, 50% of our business is currently impacted by governmental orders stating that our work is non-essential. This is bitter-sweet. I certainly want people to be safe, but we've had to make some tough decisions and in the geographies that were... Read more

Virgin materials can come with major environmental impacts from mining, petroleum extraction, or irresponsible logging practices.

BuildingGreen-Approved Site Furnishings

All approved products contain some post-consumer recycled content, with several boasting 90%–100% overall recycled material. Wood products are responsibly sourced... Read more

Hi all!

A couple years ago now there was an incredible thread here about circadian lighting design and WELL. There was a lot of dipping toes in the water with intent to gather lessons learned and report back.

What have been the high points and low points of circadian lighting design so far? What seems cost-effective and worth... Read more

Have you ever been accused of being "self-righteous," or "judgemental" in your role as and SDL? Anyone have tips and tricks to avoid this trap?