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

ICYMI, this washington post piece reminded me of our summit conversation last Friday about architecture's/SDL's role in reimagining the world post-covid through innovating our practice. 

The article contains some compelling quotes from several visionary architects (fascinated that it's mostly big-A architects, largely bypassing input... Read more

Welcome to the quiz portion of Green Design: What's Love Got to Do with It?

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


1. Summarize how designers are better able to fulfill the full promise of sustainability by embracing sensory experience.
2. Broaden the sustainable design... Read more

Hi All,

How are folks funding training for your employees? Would it help to have free training opportunities besides lunch and learns or ones you do yourself?

For those of you outside of Massachusetts you may have employees or friends in MA that this could be relevant to.  I'm hoping my friends in MA have already heard this.

Hello fellow sustainable design leaders! I am about to kick off an intensive effort here at EHDD to refine our internal standards for materials. We will be considering both GWP as well as the health of materials (avoiding harmful chemicals). In addition to setting the standards, I will be working to develop a process to vet materials before... Read more

Hello Everyone!

Wondering if anyone has expertise in Algae Photobioreactor facades? Here is a product: https://cellparc.com/

My basic understanding is that they produce heat and biogas (as well as providing shade and some thermal value.)  However, I am not clear on the GHG balance benefit, so to speak.  I cannot determine if the... Read more

I'm looking for precedents of retail centers (think outdoor centers with multiple buildings or converted indoor malls) that have incorporated any of these strategies. Also, any research studies on the health, social, and other benefits of incorporating these strategies. 

a. Preserve/restore natural ecology, green infrastructure... Read more

We have a client who is asking us to design a roughly 10 ksf Wellness Center for PHIUS 2021 certification.  The program includes several high density assembly type spaces - roughly 300 person peak occupant load for the building.  The Criteria Calculator that the architect showed us puts the building peak cooling load at 4 BTUH/sf (3000 sf/ton... Read more

Learning Objectives:

Explore the relationship between smart buildings and cybersecurity through their shared history.

Clarify the difference between OT and information technology (“IT”) cybersecurity including the protocols that drive OT cybersecurity programs.

Provide recent examples of critical attacks on building... Read more

Dear Colleagues:

This is a request from AIA COTE Advocacy to sign another petition on behalf of your firm. I know it's incomprehensible that we have to do this, but we at AIA COTE Advocacy think the US Federal Emergency Management Agency's removal of the term "climate change" from all their strategic planning documents is evidence of an... Read more

Reminder: For anyone interested in continuing to participate in the Climate Smart Wood Working Group, please note that we have joined the other CSWG and will have our first meeting next Wednesday.  Visit the Working Group page for the meeting invite and agenda.

There has been some great press in the last couple of days related to Healthy Building Network's (HBN) newly released report "Chlorine & Building Materials Project".  That report is over 200 pages long, but there is some great commentary available that makes the top issues much quicker to grasp.

Chlorine is used to make PVC and PVC... Read more

Kristen Fritsch, in the thread about ipe wood, asked about resources comparing the carbon footprint of transporting building materials vs the transport mode.  There are people who spend their lives on this topic that I won't presume to speak for, but I'll share a few observations:

Even though freight transport is something like 7% of... Read more

Hans “Grumpy” Grimm

Caseworks can be made from unsustainable wood and other materials, and with adhesives and finishes that offgas formaldehyde and other hazardous compounds.

BuildingGreen-Approved Casework

Approved caseworks are:

Dear all,

For a specific existing building application, we are looking for a half inch insulating glazing unit, preferably with low-e coating. Based on my research, 5/8" seems to be doable (1/8" glass + 3/8" air gap + 1/8" glass) but I'm yet to find a viable 1/2" solution. Have you come across any on your projects? Thanks for your... Read more