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

CEUs are available for reading our entire plumbing guide. Click here to learn more and take the quiz.

Constructed wetlands and other natural filtration systems close the nutrient and water loop, permitting safe and sustainable wastewater treatment and reuse right on the site.

We look for... Read more

Join our free Coffee Talk with Alex Spilger to discuss the latest WELL AP v2 exam. Hear what's new in this latest version, what to look for, and what to remember.

Alex combed the WELL Building Standard reference materials and took the v2 exam in writing an extensive exam prep guide.  Hear about... 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 Are Cool Roofs Green? The Answer's Not Black and White

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


1. Explain why roofing choices are complicated by heating tradeoffs, climate effects, and condensation and how cool roofs are intended to reduce... Read more

This might be going down a rabbit hole, but in moving to California this year I noticed that "zero net energy" (ZNE) is the standard term, whereas "net zero energy" (NZE) was more common back east. The DOE's 2015 definition (below) uses "zero energy building" (ZEB), which to me implies a building uses no energy at all.

Regional... Read more

I took a first pass at content for the Energy Audit best practice, see the uploaded file. 

I have a client seeking grant funding & they're vetting current US technology around large-scale prefabricated mass timber. My question to this group is if this currently exists anywhere in the US.

Qualifications:

10+ years experience manufacturing and installing large-scale prefabricated mass timber elements into completed... Read more

Greetings!

Back again re: the work we're doing with City of Cambridge, in their great leadership efforts to develop EC policy/regs/incentives and reporting requirements.

Thanks to those who responded earlier about the effort it takes you to conduct WBLCA - now we're diving into it in more depth and wanting to get together a focus... Read more

Apologize in advance if this has been posted before but we are trying to get manufacturers of stage curtains to give documentation that proves that the product does not have halogenated fire retardants. Manufacturers say they don't have them or concentrations are limited to 100ppm but they don't seem to have documentation to provide for it.... Read more

Hi SDL!

Our CM recently offered up the possibility of substituting Pozzotive into our structural and paving concrete mix (www.pozzotive.com) on a large public building. Apparently it is on a level with the cost of standard cement.
We are eager to reduce the project's embodied carbon, and this seems almost too good to be true.

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?

THIS WEBINAR PURCHASE AND REGISTRATION IS CLOSED.

Live webinar approved for 1 AIA LU and 1 GBCI CE hour. Each person intending to earn CEU credits must purchase their own seat.

Why high-performance assemblies? And why now? Today we demand better thermal performance from our building assemblies than... Read more

Hi everyone - I will be holding my breath and attending the AIA conference in person this June. Is anyone else going? I'd love to reconnect with each of you!

Apologies if I've missed it - with there be a BuildingGreen meetup?

Feel free to email me if you don't want to reply all - [email protected]

-Kjell

Hey there hive mind,

We went looking through LEEDuser to try and find some direction and didn't find much so I thought I'd bring my team's question here to all of you smart people. We're working on a non-combustion central plant tied to a geothermal field and grid electricity. The project has cooling towers and their associated chemical... Read more

Hi all,

I am working on a Div 01 sustainability spec section for our firm to include by default on all projects. I've been finding a lot of great sample language out there for embodied carbon measures and material transparency (huge thanks to anyone here who had a part in developing those resources). 

One thing I'd like to include... Read more

CEUs are available for reading our entire plumbing guide. Click here to learn more and take the quiz.

Excess heat generated by air conditioners, refrigerators, boilers, and water flowing through pipes typically goes unused.

BuildingGreen-Approved Water Heat Exchangers

BuildingGreen lists desuperheating technologies and... Read more