Our Green Team is holding a Biophilic Design workshop on Earth Day with our own staff for biophilic interventions within our office space. We are referencing the Biophilic Design Guidebook from LBC but it will be a shorter time frame, about 1.5 hours total. Last summer we introduced biophilia to the office through the exercise where each person... Read more

Hi gang,

Following up on the recent Air Quality Design Jam at the summit, I’d like to round up the folks interested in supporting an Air Quality Working Group.

Didn’t attend the summit? No worries – everyone is welcome! We had a good group the other week and several of us want to continue the conversation.

The design jam... Read more

A site license allows your entire organization to access and share the guide, and to keep a copy in your library.  

We’re excited to be releasing the 2020 edition of Spec This, Not That. 

... Read more

Composite windows come in two basic types: fiberglass, and wood/plastic composite.

BuildingGreen-Approved Windows

Fiberglass and other composite window lines have NFRC unit U-factors of 0.20 or lower. Higher U-factors are allowed for products that include significant recycled content.

Manufacturers also must demonstrate... 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.

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

Curious if folks know of any resources on hempcrete, specific to durability.  We have a one-story carbon-neutral operational energy project where the design team and client have bought into the aesthetics and carbon-sequestering potential of hempcrete, and amazingly it is looking to be no more expensive than a more typical concrete wall... Read more

The page you're looking for is no longer available. There may be several reasons:

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

Hi Gurus!

I'm desperately seeking any case studies (past/currently on the boards) of labs that have been designed without natural gas infrastructure (the topic I have to debate is about commercial spec labs but any lab case study, wet or dry, is welcomed). This is for a development authority that will be setting guidelines for new... 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

Welcome to the quiz portion of Finding Furniture Without Toxic Flame Retardants.

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


1. Explain why avoiding toxic flame retardants is important.
2. Explain how we were swindled into dosing our buildings and our bodies with flame... Read more

I'm looking to compare using an electric tower crane vs a diesel generated tower crane.  I've got the average gallons/hour for the size of crane I'm looking at, but when I reached out to the crane manufacturers, they can only tell me what size electric supply I need to provide, not the kWh usage for the cranes.  I know that it varies depending... Read more

My apologies if I posted this question twice ont he forum - I am a newbie on this forum.

Anyone knows how to import an structural emobdied carbon project file into architectural project file of the same proejct to generate a combined Sankey graph?  My Building Transparency/CLF contacts haven't got back to me for a week now...

... Read more

Has anyone pursued the schools Mold Prevention IEQc10 successfully and have format for the documentation created they would be comfortable sharing? Our contractor is excited about pursuing this credit but no on our team has pursued it before.

thanks in advance!