Andrea first became familiar with BuildingGreen in 2010 when she and her husband moved to Vermont and built their own passive house from the ground up. BuildingGreen’s president Nadav Malin heard about the project and asked if the staff could take a tour, and the rest is history. She joined the BuildingGreen team part-time in 2011 to work on... Read more

Have any of you heard of anyone ever using phase change material (PCM) "movable partitions" as a resiliency strategy to mitigate indoor overheating during a heat wave in passive buildings? You'd keep them stored in a basement or cool room, and deploy them into habitable spaces during the heat wave to keep the space cooler than the exterior... Read more

Our high performance consulting team is frustrated by project teams that regularly fall back on outdated rules of thumb in their system and equipment sizing. 

What challenges do you face in your work flow to limit oversizing and promote right-sizing?

By the way, Roger Chang, our literature search on the subject turned up an eleven... Read more

Hello everyone,

Over the past couple of years the Climate Smart Wood Group has met monthly to discuss all things related to the use of timber in building design and construction.  From forestry practices, to supply chain and sourcing information, to design experiences and examples, the group has operated as an open forum for advancing... Read more

Greetings friends.

Many of you have heard about the CARE Tool, (formerly the 2Build or not 2Build Carbon Calculator.) We are now in the final stages of bringing it online as a free, open access tool hosted by Architecture 2030. We are finalizing and aligning data and working with a web developer (the same one that brought us... Read more

Just an FYI that BG's web team is planning on attending your meeting at 1:00 EDT. We will need information on how to join since the info in the invite didn't work last time.

See you all then.

Nothing exciting like embodied carbon or EPDs... but I'm interested in some real talk on the actual performance of low-flow fixtures.  

We continue to encounter pushback on water-saving fixtures for concerns of ongoing performance. I'd love to have a dialog in this group because I find it hard to believe these challenges can't be... Read more

Hello All,

ASHRAE and ICC released a draft standard for operational and embodied GHG evaluation.  It's on a fast track to be completed in time for the next code cycle.  This 30 day advisory draft includes dozens of questions looking for feedback from experts like all of you.  Please take a look and provide comments.  I've uploaded the... Read more

Hi folks,

Wondering if this group has insights about the low-embodied carbon product "Vertua" from Cemex, which appears to be a proprietary concrete product launched in 2020.

Our client wants to use CarbonCure; but our likely concrete sub is saying Cemex (where they typically source their concrete) offers an alternative called... Read more

Hello everyone,

So sorry that some of you couldn't get onto the call on Tuesday! There was a bit of a problem with our Zoom links. I think we've figured it out, so we should be all set next time.

Here are the notes from the call. If you have any questions about something on there, please feel free to post them here and we'll try... Read more

Welcome to the quiz portion of Innovative Products and Technology from the Greenbuild Expo

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


1. Direct attention to green building products and technologies that show exceptional potential, from a whole-systems perspective, to bring the... Read more

Welcome to the quiz portion of The Building Envelope: Primers from Environmental Building News.

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


1. Explain how thermal mass helps maintain indoor thermal comfort in buildings.
2. Describe the differences between closed-cell and... Read more

We are looking to refine our general office specifications to weed out harmful materials and to prioritize sustainability for all of our clients. Have you had good experience with outsourced specification writers who are helping to push sustainability forward? Who do you recommend? Bonus points if they are familiar with Massachusetts codes and... Read more

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

There are a number of clear finish options available, from natural oils and low-toxicity products primarily used on residential woodwork through factory-applied finishes where specific aesthetics and/or added durability are required (such as those used on cabinetry or commercial architectural millwork). Many of these have very high VOC levels,... Read more

Greetings, all:

AIA COTE Advocacy is working with AIA Gov't Affairs to assemble a directory of COTE-friendly AIA Members who are passionate about environmental advocacy and VOTERS in targeted congressional districts. We are organizing in-district meetings after the mid-term elections focused on the members of the Senate Energy &... Read more