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

Hi all,

We’re thrilled to share that registration is now open for our All-Networks Workshop on Integrated Design + Delivery from the Inside Out! The workshop will be held on July 15th at Miller Hull’s Seattle office, right before the Summer 2024 SDL Summit. Register now before it fills up, and please feel free to email me with any... Read more

Welcome to the quiz portion of Cost-Effective Green Retrofits: Opportunities for Savings in Existing Buildings.

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


1. Define the term retrocommissioning and list at least three examples of how it might help commercial building owners.... 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

Hi SDL: I'm working on a presentation and would love to highlight a completed and/or unbuilt project that seriously incorporates climate change projections in the design. Any scale would be great. It's becoming abundantly clear that we need to be doing this for any building that will be around for even a few decades. In fact, the insurance... Read more

Hello Fellow Green Guru Members:  I am pleased to be a new member of the Sustainable Community Design Leaders (SCDL) forum, and look forward to learning and contributing here.  Also, in case you missed it, this week there were two important steps forward towards an eventual standardized Environmental-Social-Governance (ESG) reporting system... Read more

We are working on a large, commercial, LEED project in the Wash DC area, and the Construction Management firm needs LEED administrative/documentation assistance on their end of the process.  The construction is underway but the CM lacks the staff. 

Can anyone suggest a LEED consultant in the DC area that can work for the CM -- managing... Read more

Hi, folks! Posting on behalf of an individual outside of the networks. Are you seeking a sustainability and materials specialist in-house? This candidate great qualifications, including:

Gather with the Changemakers in Sustainable Design

You are invited to join BuildingGreen and your peers for the Summit that has always delivered on driving our movement forward. Over three days of collaboration, workshops, learning, sharing, networking, and socializing, we’ll explore what Sustainability Leadership looks like in 2023 and... 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

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

Hey, everyone! Reaching out to share about the currently-under-development IEA Annex 89: Ways to Implement Net-zero Whole Life Carbon Buildings. The current committee is really the who's who of building LCA in Europe, but it does seem like it suffers from a lack of North American representation. The one North American on the committee, in fact... Read more

Hello - I wanted to see if others have been having any of the same Windows security issues with a host of public software (Radiance, Window, DAYSIM, Open Studio) that we regularly use for performance analysis.

My IT team has let me know that they see serious security conflicts with THERM, as well as lot of the LBNL software (Radiance,... Read more

Welcome to the quiz portion of Improving Resilience!

IMPORTANT: This quiz covers five related articles within this topic. 

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


Welcome to the quiz portion of Deep Dive into the Integrative Process with Marcus Sheffer (recorded webinar)

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


As the Communications Associate, Petra works closely with both the marketing and editorial teams at BuildingGreen. Whether it is creating posts on Instagram, analyzing metrics, editing feature articles or writing news briefs.

Petra has a background in journalism, digital marketing and social media. She has a BA in journalism and media... Read more

Are your clients asking you about wellness? You’re not alone. Healthy interiors and wellbeing are the trending buzzwords of sustainable design. Lighting design for circadian rhythm and water filtration methods might be on the... Read more

Save the Date: If you'll be in DC for AIA's Conference on Architecture or just happen to live nearby, hold 6:00–8:30 pm on Wednesday, June 5 for this event.

We have partners! This event will be hosted by ZGF Architects (on their lovely rooftop patio) in collaboration with US Architects... Read more