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

Wondering if we can have a dialog on HVAC load calculation software... we are currently still using Trane Trace 700, but with the future migration to Trace 3D+ coming are looking into other options. Never used HAP but I haven't heard great things, and we dabbled in IES VE for a while, but went back to Trace since at that time there was no... Read more

Hello Green Gurus,

Here are all the details about our two Peer Network events in Chicago on Tuesday, June 21st. If you'll be in town, we hope to see you!

From 1-5pm we'll have the Chicago/Midwest Region Mini-Summit, open to members of any of the five Peer Networks (Sustainability Consultants, Community Design Leaders, Contractors... 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.

I was recently asked if there is a way to quantify financially what one MT eCO2 might be worth in the context of a building owner reducing their own carbon emissions.  How do you put a dollar value on those reductions?  Does anyone have experience with that or can you point me to the correct resource to answer this question?

Anyone know what stages does CARE include? Does it include B1-5, C1-4 or D?

Thank you!

Hello All! 

We are using TallyCat to extract quantities from our REVIT Model, and bring them over to EC3 to get a model GWP (focusing on material categories required to evaluate ILFI Zero Carbon certification).  There are a number of questions that are popping up!!

I am sure there are others trying the same thing, yes... maybe?! ... 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

Hello, All, Is anyone familiar with One Click LCA software and resources?  Similarities/differences from a Tally or Athena approach?  Many thanks!

Welcome to the quiz portion of Climate Analysis for Architects (recorded webcast).

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


1. Access climate data.
2. Choose appropriate design energy simulation tools.
3. Know when and how to run analyses with projected weather data... Read more

Hi SCL, 

Just thought I would share an interesting piece from Construction Dive about a lack of guidance on when to halt work due to bad air quality--from wildfires or otherwise. A few SCL companies are mentioned here as having their own policies, but I was pretty shocked to learn that this isn't required by OSHA. 

https://www.... Read more

Discarded tires are an environmental disaster, and finding a beneficial use for them is a high priority.

BuildingGreen does not approve any flooring product that is made with tire-derived rubber, though some products may be appropriate for exterior use.

Our guys have started talking about how the built enviroment can address infection transmission in public spaces - places like lobbies and waiting rooms, particularly in applications where people queue - theaters, airport gates, amusment parks, etc.  In the specific case of Covid-19, we know the microbe can be transmitted three ways:  fomite (... Read more

Hi SDL: sorry to send another missive so soon but I wanted all to be aware of a great new effort just announced today coming from Greg Kats and Vivian Loftness among others - The Smart Surfaces Coalition. This effort brings together resources and research around city-scale resilience. "The Coalition is committed to the rapid, cost-effective... Read more

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