Received answers from below questions from NIST Andy Persily

1. Is there a preferred bookends range of CO2 for both “optimal” energy and human performances?

Andy: No

2.Is the ASHRAE ventilation of 1000-1200 ppm average, probably not based on performance, suggesting current ventilation rate is sub-optimal with cognitive... Read more

Allen Mutapo

Hello All,

Through a regional School of Architecture, our firm has been connected with a very intriguing startup that has been engineering a new rooftop wind energy technology. They are developing a system to economically capture the increased wind flows at the edges of commercial building rooftops. They have engineered this system,... Read more

Good daylighting intentions can end up increasing glare and solar heat gain.

BuidlingGreen-Approved Lightshelves

We look for lightshelves designed to reflect direct sunlight onto the ceiling, turning what could potentially be glare into diffuse, ambient daylight that penetrates deep into the interior of a building.

Energy... Read more

Congratulations on the site launch!  One problem, though... you appear to have overlooked the home page orientation video. Currently there's just a placeholder image that doesn't actually do anything. Did your team end up producing a BIT User video?

Welcome to the quiz portion of Getting Flame Retardants Out of Foam Insulation.

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


1. Summarize why and how flame retardants are used in foam insulation.
2. Elucidate the case for taking the chemicals out of foam insulation.
3.... Read more

Hello Green Gurus!

Here is a [LINK] to an updated version of the letter, including all the signatories we had as of last Friday - thank you all!

This message is really geared for your firm's social media/communications team, so if you aren’t that person, please share this message with them! With that said, all of you (whether your... Read more

Now that you’ve read “The Urgency of Embodied Carbon,” sign up for BuildingGreen Premium to take the quiz and get continuing education credits with AIA and GBCI.

BuildingGreen Premium includes access to our vast CEU library, including Spotlight Reports, feature articles, and webcasts. We’... Read more

At Living Future last week a woman from Google asked about cost comparisons and I shared that the City of Santa Monica conducted a study analyzing the costs of a prototypical mixed-use project for a Living Building vs. LEED v4 Platinum vs. code compliant (Title 24, part 6). I thought this group might be interested as well so here is the link... Read more

Hi SD Leaders: I'm hoping that you guys can be a great resource for a family member who teaches at Carnegie Mellon University, Professor Marvin Sirbu. Marvin teaches and does research in the Energy and Public Policy department and each year leads a class that takes on a challenging real-world problem to arrive at innovative solutions. This time... Read more

Hello Sustainable MEP Leaders!

I have an exciting announcement today, fall Peer Network events are now open for registration! You can see all the event details and register here!

Based on feedback we received from past events and the most recent surveys, we decided against doing one long week of events for this fall and instead... Read more

Posting at the request of Sara Bayer of Magnusson Architecture and Planning, who will soon join this group:

"In our quest to achieve Passive House EUI levels in all of our multifamily projects in a healthy manner, we are encountering pushback on the one item that is not really code min just yet (in NYC) and adds real cost:  ERV’s.  Our... Read more

Quiz body not needed for this auto-confirmation

We have a client for whom we are designing a very high performance manufacturing facility, and they want to communicate their building's performance both dynamically and in real-time within their lobby for guests and staff.

We would like to mine the wisdom of this group to see what recommendations we can muster regarding high quality... Read more