Hello All-

  We have a K-12 school project that is using a R-60 flat roof assembly as an energy & costing benchmark (along with other energy efficiency measures but this is the relevant detail to our question).  The project mechanical engineer is not onboard with a number of our energy conservation measures and has been sharing... Read more

Greetings to the Green Commons!

Those of you who attended Greenbuild may remember that during one of the keynotes, Ali Zaidi - White House National Climate Advisor, announced that the White House was developing a definition for "Zero Emissions Buildings" (here’s a [LINK] to a related Washington Post article). The draft language for the... Read more

Ada Fran Maman

I am working on a new community development in St. Paul that is striving to achieve net-zero energy. We are able to get there mathematically by using the extra generation on light industrial rooftops to offset medium-density housing energy use (all buildings are anticipated to have different, private owners). However, this puts us over... Read more

Who else is playing in this year’s #SustainabilityScavengerHunt by BE+!?

Meredith Elbaum and team at Built Environment Plus are launching the second annual hunt this Friday. Teams of up to four people compete over a couple of weeks to complete missions and bring awareness to environmental topics.

It was a lot of fun last year - we... Read more

Embodied carbon in products and existing buildings. What does LCA tell us about renovation vs. new construction and material choices?

Guiding Questions: 

Peter Yost (at https://building-wright.com/ )  is available to provide building science expertise, trainings, public speaking, building investigations, and more. Learn more

Hi all!

I'm working on my first energy positive / passive house multifamily building and trying to figure out the trash/recycling chute. I am curious what solutions you have employed to make the trash chute air tight? We have excluded the whole chute from the envelope. Do you use airtight doors (and which ones?) at each floor trash/... Read more

Welcome to the quiz portion of "The Potential of Prefab: How Modular Construction Can Be Green"!

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


MSA has issued a safety advisory because they have received field reports that their green colored MSA V-Gard Protective Caps are cracking. Please share this with your safety staff if they do not already know. Let's keep everyone safe!

Curious what people's 'best' experiences or recommendations are for load calculations and energy modeling regarding electrochromic glazing... hoping I can lean on others as it's just now becoming more of a talking point in our market here in Omaha. 

Specific questions including whether load and energy modeling software are separate (... Read more

Untreated rainwater leaving a developed site is effectively a chemical spill, laden with pollutants that include oil, sediment, heavy metals, nitrogen, and phosphorous. The heat carried by stormwater is also harmful to fish and other aquatic organisms.

BuildingGreen-Approved Systems

We approve systems that:

Hi Green Gurus,

We have recently had a beloved member of the HKS DesignGreen team relocate to Toronto due to work visa challenges in the US. Our loss could be your gain if you have an office in Toronto! We are hoping to collect a list of leads for him once the dust settles on his move and he begins his job hunt. If you have any... Read more

Hello Green Gurus, here's a reminder that this webinar is happening one week from today!

Register here.

Sustainable Community Design Leaders: Who we are, What we do
Tuesday, February 16th, 2021
3 - 4pm ET (12 - 1pm PT)

Description: Join this live webinar to learn about the brand-new Sustainable Community Design... Read more

If you are interested in sharing this WELL AP Exam Study Guide within your organization and... Read more

Hi All - I have a 3 bdroom close walking distance to Greenbuild venue - but I don't need it.

Last call before I cancel it - if anyone wants it - I can transfer!

Just shoot me an email directly to bb@sustainable-performance.org

Thanks and see you there!