Is there a list of which number corresponds with each Best Practice? E.g. "03 Energy Audit & Planning."

Axel Slowin

Hi all,

We are about to start a affordable housing passive house project in Boston and in a few presentations I've seen great signs that builders use to try to get the point across to subs as to how important air sealing is. Some are even quite funny! The builder we are working with does not have a sign like this, but is open to ideas.... Read more

I was wondering if any design or contractor friend here can kindly share the carbon emission factor of excavation during construction. 

I found a paper that provides energy use rate per cubic meter and associated carbon emission in kgCO2 for different phase of construction such as excavation earth work, pouring and lifting concrete,... Read more

At the start of 2021 there was one signatory to the contractors commitment (thanks Leopardo!).  Today, there are 12 companies participating, representing over $24 Billion in total revenue.

We don’t always give ourselves enough credit or take enough time to savor our accomplishments because there is always more to do.  But, this is a big... Read more

Welcome to the quiz portion of The PVC Debate: A Fresh Look

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


1. Catalog the history of PVC in the building industry.
2. Recount the connections between PVC and chlorine, dioxins, mercury, and vinyl chloride.
3. Explain the... Read more

Chillers are part of larger systems that provide cooling in large commercial buildings.

BuildingGreen-Approved Water Chillers

Because there isn't a single relevant efficiency standard for chillers, approved products use innovations such as magnetic bearings, variable frequency drives, or other technologies that significantly... Read more

CEUs are available for reading all the building-envelope product guides and primer. Click here to learn more and take the quiz.

Noise disrupts work, learning, and healing and can create stress and discomfort.

BuildingGreen-Approved Acoustic Insulation

We look for products with:

Hi all!

NESEA's BuildingEnergy Boston is happening March 28-29 at the Westin in Boston's Seaport. Would anyone like to meet up there? There are a few happy hour-like events we could meet at in the Trade show space or I'm open to other ideas! Let me know if you're interested. Here is more info: https://nesea.org/conference/buildingenergy-... Read more

Colleagues,

As we all know, ventilation rates must be kept the same between the LEED Baseline and proposed energy models. However, we're aware of projects that have been able to claim energy savings associated to reducing ventilation using systems like Aircuity. 

Have any of you successfully claimed credit for reduced airflow due... Read more

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ASHRAE 209 in all its glory has been uploaded. This will impact our architectural process, for better or worse, so we should embrace it and learn from it. The revised AIA Energy Modeling Design Guide (due out next year) has been timed to correspond roughly to 209 coming out and will include references to it. The first few energy modeling '... Read more

Hi Green Friends - I hesitated to post on April Fools, but wanted to get the link out for folks to share with their netowrks    I'll be teaching a workshop at the Pacific Energy Center on May 11 on Electrification Retrofits of Exisitng Non-Residential Buildings.  I'll be bulidng on the great work our sub-committee led by Allison has been... Read more

Hello Everyone,

We wanted to share the highlights and take-aways from the large firm Sustainable Design Leaders (SDL) 2020 Winter Summit at The Lodge at Gulf State Park, AL. Additionally, this was the first year we had a pre-summit workshop for the winter summit. Our amazing workshop facilitator, Julie Huffaker from Deeper Funner Change... Read more

Hi. Happy Monday! Will BG create the BIT-user intro video found on the landing page? Do we partner on it, or should Southface plan to provide it? Thanks.

I'm guessing this is the most impactful thing any of us could do over the next couple of years. Energy Codes are far and away the biggest lever that our industry has in fighting climate change. I'm up to my eyeballs in commitments at the moment but heartily encourage you (yes, YOU!) to sign up.

...

Hi all – if any of you are... Read more