Split systems are multi-component units that use an outdoor condenser along with separate indoor fan coils to move refrigerant—and provide heating and cooling—in buildings without the need for ducts.

BuildingGreen-Approved Systems

BuildingGreen approves mini-splits that are tested to AHRI standards and have minimum SEER and an... Read more

Welcome to the quiz portion of Community-Scale Sustainability: Accelerating Change for People and Planet

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


Explain how combining stakeholder efforts and resources can achieve greater resilience and sustainability for communities.

Discuss... Read more

The IECC is accepting applications for committee members for its development of the 2024 International Energy Conservation Code (IECC). The responsibilities of the committees include:

Hello everyone! I’m happy to be re-joining the group after a two year hiatus.

Pre-pandemic I got to participate in a few winter summits when I was Sustainability Director at Overland Partners in San Antonio. I’ve recently joined Mahlum Architects in Portland and I’m excited to re-engage in the conversation, this time from the West Coast... Read more

Healthcare Design, one of the most respected and widely recognized trade journals in the health care AEC space has released the names of its 2022 HCD 10 winners.  The mission of The HCD 10 is to recognize and celebrate the broad spectrum of outstanding professionals in that industry and the influence they have on healthcare design.

One... Read more

Dear SDL,

After almost 12 years at Sasaki, I have finally decided to leave for a path slightly-less-traveled. My own development project in Boston (passive house, ZNE condos) is in construction and I will be focusing my attention on that over the course of this year, and then hoping to continue doing similar integrated... Read more

This message came in earlier today and is something of which we should all be aware.  I took the extra step, in this world of uncertain facts, of checking the veracity of the message with Jason Grant who confirmed it.  From William Bucholtz:

Dear Green Building Colleagues,

No one likes being fooled, but it’s... Read more

We just wrapped up an awesome Winter Summit at Gulf State Park in Alabama. I'll be posting flip chart pages and notes here--we can use this forum to continue the conversations. 

Apologies for the flurry of emails, but it seems best to start separate threads for each topic. If you'd rather limit the flow, you can switch to daily digest... Read more

Hardware has to be durable and resist weathering to ensure that features such as doors function properly.

BuildingGreen-Approved Hardware

BuildingGreen approves hardware that uses post-consumer recycled metal content beyond what is standard in the industry. Products from manufacturers that have engaged in information transparency... Read more

We all know the climates are shifting, and the ASHRAE standard that gets invoked for energy codes is shifting along with them--though not in perfect sync.  Louisiana is leaping from ASHRAE 90.1-2007 energy code to 2021 IECC (boom!).  The 2021 IECC as published uses relatively old climate maps; for Louisiana, at least, the same as the 90.1-2007... Read more

Colleagues, 

Have any of you had the opportunity to implement the Tesla solar product? We're in learning more about the product, its track record, any concerns we might need to know about. Would love to hear! Thanks. 

THIS WEBINAR PURCHASE AND REGISTRATION IS CLOSED.

The green building world’s most anticipated awards are almost here!

The Minnesota CLF chapter’s Specification Subgroup (myself, Andy Marolt/Ryan Companies, Laura Eder/ESG, Java Nyamjav/MSR Design, with input from Annie Perkins/SFI) recently collaborated on a draft set of specification templates incorporating embodied carbon requirements into product performance and action submittals. This work builds on sample... Read more

I've written waste and recycling policies many a time before for both construciton and operations... but in a volunteer committee application this morning, the maintenance team got bogged down on "how do we collect recycling without plastic bags" question. I told them there's not any kind of plastic bag that I'm aware of which can be thrown... Read more

Hi all, 

I have a project where we are providing the main sustainability lead role, but are in need of an LBC sub to provide additional expertise (and fulfill a contract requirement). We are ideally looking for someone who has experience with more than one project that has completed the process, and especially for (large) commercial... Read more