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

Anyone have experience with electric boilers? I think in cold climates it's perhaps the first thought when trying to reduce scope 1 emissions in an HVAC application that would have historically used gas-fired boilers... but it seems like they're only an incremental improvement compared to heat pumps / geothermal / VRF type solutions. We haven't... Read more

Hi all,

Passing on a message from Julia Siple at AIA who is conducting a series of focus groups related to the AIA 2030 Commitment's DDx platform. You may have already received this from other channels but I thought I'd post here as well in case it got missed. They are looking for more participants in the morning and lunchtime (lunch... Read more

The deadline for submitting presentations is coming up. This year ASHRAE is hosting a joint conference with Simbuild. We are just about to send out an extension announcement (It is now Feb 9th) , so there is still time to get an abstract for a presentation. 

Possible ideas for topics: 

Daylight - new metrics and... Read more

Lake|Flato developed a project process road map as an internal project management tool over a decade ago, and we're looking into updating it.  It serves as a sort of "checklist" of major design, sustainability, and QA/QC milestones for each project phase.  I know we've talked about similar tools at other firms at past SDL summits, so wanted to... Read more

Hi everyone,

We’re excited to announce that registration for our Summer 2024 Sustainable Design Leaders Summit is now open! Join us from July 15th-17th at IslandWood on Bainbridge Island, a beloved location where we’ve hosted Summits multiple times before. Register early to save your seat, and feel free to reach out to me with any... Read more

Welcome to the quiz portion of "Spec This, Not That: Avoiding Toxic Chemicals in Commercial Building Projects"!

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


Hi all

I would like to warmly invite all of you to our Lyle Center for Regenerative Studies 25th anniversary events. I think the events are very pertinent to what this group is about and are all free. If you are in the LA area please come! The 11th includes an outdoor reception at the center after the presentations. It’s also an... Read more

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I have been watching LEED Zero for a while, and have appreciated certain things, but one thing I think is an absolute disaster is their allowance of mainline RECs for claiming Zero Energy and Zero Carbon performance.  I just asked this question on the LEED Zero webinar, and the panelist basically said, "it's part of LEED Zero, therefore it is... Read more

Successfully managing the LEED documentation process requires specific knowledge, tools, and skills that are not covered in the LEED Reference Manual. This CEU course is based on the LEED Project Management course that GreenStep developed and teaches through UC–Berkeley Extension. It is designed for professionals who are somewhat familiar with... Read more

Welcome to the quiz portion of The Product Transparency Movement: Peeking Behind the Corporate Veil.

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


1. Describe an EPD, naming at least six characteristics that it attempts to quantify.
2. Explain what the HPD Open Standard... Read more

Hi all! I'm very excited to report that we have interest from a developer client in tracking embodied carbon through construction. We have issued construction documents and the construction managment team is begining the process to establish the GMP.

We're looking to use EC3, and/ or ZGF's LCA analysis tool for concrete to look at how we... Read more

Composite windows come in two basic types: fiberglass, and wood/plastic composite.

BuildingGreen-Approved Windows

Fiberglass and other composite window lines have NFRC unit U-factors of 0.20 or lower. Higher U-factors are allowed for products that include significant recycled content.

Manufacturers also must demonstrate... Read more

Hi all - at the suggestion of Nadav and some of the Sustainable MEP Leaders, I'm reposting a thread I started a couple days ago in the SMEP forum.

In response to increasingly aggressive (and effective) targeting of building owners (particularly schools), a group of researchers have put their support behind a letter warning against the... Read more

The ASHRAE Conference staff is looking for more architecture sustainability leadership for planning their Integrated Design & Construction Conference (i'm sure they'd take contractors too!). The staff do almost all of the logistics themselves but they want thought leadership from across the industry to guide the focus, content.

See... Read more

Hi Green Friends - I hesitated to post on April Fools, but wanted to get the link out for folks to share with their netowrks    I'll be teaching a workshop at the Pacific Energy Center on May 11 on Electrification Retrofits of Exisitng Non-Residential Buildings.  I'll be bulidng on the great work our sub-committee led by Allison has been... Read more

Hello Green Gurus!

Quick introduction as this is my first time posting - Louis Koehl, AIA, CPHD, Director of Sustainable Design at Handel Architects, based in NY. I recently joined the SDL Forum and met some of you at the regional summit and Greenbuild.  I'm excited to continue to connect with such an influential group! 

My... Read more