Hello Green Gurus!

Thank you to all who joined the cross-networks adventure that was the Sustainability Leaders Week: 2021 Summit-Palooza, all of us at BuildingGreen were so glad to share that time and space with you all.

We have been receiving a few questions about next steps, here are a couple details we wanted to share with you... Read more

Ventilation is essential for indoor air quality, but it can bring very hot or very cold outdoor air into conditioned space.

BuildingGreen-Approved ERVs

Heat-recovery ventilators (HRVs) and energy-recovery ventilators (ERVs) can save energy by capturing nearly all of the heat in the air being exchanged. BuildingGreen approves:... Read more

Welcome to the quiz portion of The Great Eight: High-Impact Material Choices for Green Building.

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


1. Specify green building materials in product categories that truly make a difference for human health, the environment, or both.
2. Conduct a... Read more

Hi folks,

In case you know someone who might be right for this Seattle-area gig:

The position is a Senior Program Manager with CBRE on the Microsoft account working with Katie Ross, MS Sustainability Program Manager, to deliver their sustainability program to their real estate globally. 

Here is the posting: https://cbre.... Read more

Hello Colleagues,

You all know our industry’s progress over the past decade related to the impact of materials. We have come a long way. Today we have over 110 firms that have signed onto the A&D Materials Pledge, pledging to a holistic approach to materials considering: Human Health, Climate Health, Ecosystem Health, Social Health... Read more

Hi folks,

I’m sure most of you know Gail Brager, or at least know of her. For those who don’t, she helps run UC Berkeley’s Center for the Built Environment and is a long-time champion of all the things that make buildings work for their occupants. Perhaps most notably, she was a co-author of the Adaptive Thermal Comfort option in ASHRAE... Read more

Hello, 

I am struggling with understanding if I should be using Annual Marginal Emission Factors (MEF) or Annual Average Emission Factors (AEF) for evaluating different building design decisions.

Everything I know is from this document. So as I understand it ... an individual building or retrofit is going to change the marginal... Read more

Does anyone know about temporary flushout equipment that could be used to augment a building's systems to get additional CFM of OA during construction?  For our non-laboratory type projects the flushout period ends up being too long, especially in either humid summers or frigid winters (Pennsylvania).

Hoping that some of you on either... Read more

Hi! We're putting together a pre-summit survey to collect input from everyone who's signed up for the Summit; we'll use that to prep the agenda for our get-together July 9-10.

Based on our last few phone calls, here's a list of topics on our radar. If there are others you'd like to see added to the survey, or if you have more thoughts... Read more

Was anyone else surprised to see ASHRAE 228-2023 using eGRID Subregions for both the Regional Electricity Source Energy Conversion Factor and Regional Electricity Greenhouse Gas Emission Factors? In the past I have used eGRID sub-regions but also State and local utility conversion factors depending on what energy or operational carbon story I... Read more

Dear all,

A mechanical engineer on a healthcare project we are working on has asked for help in dividing the ventilation calculations between ASHRAE Standards 170 and 62.1; can anyone here help shed some light on it?

"This is the first time I am working on LEED for a hospital and I am not sure how the template wants me to show... Read more

Hi Green Commons,

It’s been eerily quiet here since Tuesday night. I’ve been quiet mostly because I just didn’t know what to say. The election results are certainly a blow to pretty much everything we’ve been working for. There is so much we don’t know about things might play out, but I’m feeling a range of emotions ranging from... Read more

Hi folks,

I wanted to let people know about this webinar--I've heard it's good. If you do catch it please let us know what you think. Jason has offered to do a private version for our Peer Networks as well--I'd love to know how interested people would be in that opportunity.

November 14, 2019 from noon to 1 PM Pacific Time

... Read more

Hi Gang, 

We are looking to implement the contractor commitment and are running into COVID-19 protocol barriers when looking at the Jobsite Wellness category specific to the soap as well as the food storage/eating areas on site. Anyone else run into this issue? 

-Kena 

Products recommended by BuildingGreen avoid potentially hazardous additives and binders and have high recycled content or offer superior energy performance.

Recommended cellulose insulations are derived from agricultural waste, offer superior moisture or air leakage performance, or impart lower indoor air quality concerns than other... Read more

Welcome to the quiz portion of Energy Modeling: Early and Often.

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


1. Explain how energy codes and standards are pushing commercial projects beyond what they can do without modeling.
2. Describe the energy and cost-savings benefits... Read more