Hello all,

My name is Stephen Messinger.  Thanks for including me in the group.  I am excited to get involved.  Glad to see some familiar and amazing names on this list.  

A little about me: I am born and raised in Massachusetts.  I live in Jamaica Plain (Boston) with my wife Lauren and two amazing daughters (Penelope, 4.... Read more

Hello Sustainability Leaders,

Great to see some of you at Greenbuild last week.  Thanks to all who responded to Nadav’s post-election blues post.  Lots of helpful insights and sentiments that left me very grateful to be part of this community.  On a related note, since the election I’ve been asked by people in our office and in life if... Read more

Welcome to the quiz portion of Avoiding the Global Warming Impact of Insulation.

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


1. Define “embodied global warming potential” and “lifetime global warming potential” as they relate to insulation materials.
2. Describe why some... 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

For those of you working in jurisdictions with both prescriptive and performance-based commercial energy code pathways, roughly what percentage of your projects are using the performance pathway? How do your project teams decide which pathway to follow?

In Minnesota we are seeing very few projects pursuing the performance pathway,... Read more

I am putting together a presentation for our local AIA conference specifically about shading devices / dynamic glazing / dynamic shading and wonder whether any of you have experience / feedback from projects that used a dynamic system - exterior operable shading or dynamic glazing (like View, Sage).  Any post-construction / post occupancy... Read more

Columbia already offers access to free EV charging for our field employees. Of the few projects that have have opted in so far, we've had to custom design and intall EV charging setups. It's good that we're doing this, but it won't scale quickly enough and cost effectively.  I think a practical next step is working with trailer companies so... Read more

Carpet is comfortable, offers good sound control, and offers great aesthetic options. But it is typically made from petrochemicals, and carpet and its adhesives can offgas VOCs. It is also a challenge to recycle, increasing the chances that it will be incinerated or disposed of in a landfill. Broadloom carpet cannot be readily repaired if... Read more

Hi all - Can you help me with a list of states with pending electrification/fossil fuel free ordinances? I am providing some technical aasistance for an article that is going to press soon. The author has listed WA, CO, and MA but I'm unsure how far each of these go and if it's technically correct to call them electrification ordinances.

Welcome to the quiz portion of BuildingGreen’s Top 10 Green Building Products for 2018.

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


1.  Explain the transparency and optimization criteria in the LEED v4 (applicable to  Building Product Disclosure and Optimization credits in LEED v4 BD+C and... Read more

I just saw this post from Conor on LinkedIn.

Starting in January 2019, all new Columbia Construction Company projects require LED temp lighting.

Are others doing this too? Frankly, given all the benefits and how quickly the industry is matured, it's hard for me to understand why anyone would use anything other than LEDs on a job.... Read more

Hi all. Not to poach from your awesome firms, but FXCollaborative is hiring a Sustainable Design Specialist. Here is the job posting:

Sustainable Design Specialist - FXCollaborative, Brooklyn, NY, US

Please send any great candidates my way!

Thanks,

Dan

Hi Fellow GG: I just wanted to make sure everyone saw the great announcement from the White House yesterday about Code updates to address energy efficiency and resilience. It's great to see these kinds of initiatives that hopefully can continue for a few more years. So let's try to take advantage of them (said by someone who lives in Missouri... Read more

Hello, what acceptable levels of air quality are you using to evaluate natural ventilation strategies for your projects?  In our Living Building we only open windows when PM10, PM2.5, etc. are within LBC and WELL limits.  In a seasonally smoggy urban environment, this limits how often we can utilize natural ventilation even if the outside... Read more

Hi Green Gurus (esp. Sustainable MEP leaders...)

I'm looking for suggestions of contacts for MEP consultants, especially in the Chicagoland region, ideally with sustainability highly integrated into the work, specialization in geothermal systems, and indoor agriculture. (doesn't necessarily have to be all-in-one)

For context, we... Read more