We are trying to figure out how we are going to meet the LEED Credit for Building Life Cycle Impact Reduction for the first time.

One approach we're trying out: We're taking the results of our Tally model and looking at potential reductions from low-carbon concrete. However, the problem I am encountering is that when I take some of our... Read more

Hello all,

Does anybody know of a substitute for Ecotect's solar tool? I use it to very quickly test shade options and I love how I can easily test horizontal and vertical elements, tilting and rotating them. I can have a window with the façade on one side and the sun path with the shadow mask on the other side. It is easy to use and... Read more

Hi: SD Leaders.  It was so nice to see so many of you at Greenbuild in Chicago. By now I'm sure all have seen the announcement of the release of the Fourth National Climate Assessment Report vol 2. (https://nca2018.globalchange.gov/) It's well worth a deep read - so much important and extremely informative material. I want to draw your... Read more

We just heard from one of our more progressive clients that they are pulling Mohawk from their shelves and are no longer allowing it on their projects. Apparently there are some chemical ingredients they objected to, but more importantly the manufacturer "lied" to the client about the content. Does anyone have an idea what this might be about?... Read more

Mass Timber Construction: An Economic Study of Supply, Best Use, and Implementation in three North American regions

This series unveils a macroeconomic study of building with mass timber in three U.S. regions; the Upper Midwest, Rocky Mountain Colorado, and the Southeast. 

Three companies - SCB Architects, LeMessurier, and Turner... Read more

Hi All,

USGBC MA is doing a study on the cost of net zero energy buildings in MA.  I’m wondering if you all have any data to share on plug loads in ZNE projects. I’m looking for single family res, 2-4 unit residential, +/- 60 unit residential, 10-12 story office, and k-12.  The engineers have presented initial results and their... Read more

Hi Green Gurus,

We have a lot going on this week, and I know it’s hard to keep track of everything, so I’m providing this quick update.

Conveniently, we have also just launched the new Peer Networks Hub on BuildingGreen.com, with a Calendar page where you can see all upcoming events (and a link to recordings of past events). You... Read more

Hello All,
Checking in on experience with Armstrong's Tectum E-N with NEOPOR Graphite polysytrene GPS rigid foam insulation core in roof panels for exposed structure?
BASF says that NEOPOR uses up to 30% less material than other rigid foam; it is greenguard gold cerified. 

Interesting that the NEOPOR increases in R-value as... Read more

Hi SCL,

I realize that there are already a couple of threads on this topic, but I didn't see anything from the past year.  We have been trying (unsuccessfully) to work with large rental companies to request jobsite trailers that are at a minimum energy efficient, and ideally solar/battery ready and/or built to passive house or similar... Read more

Food waste is a major source of greenhouse gas emissions from landfills due to methane released during anaerobic decomposition.

BuildingGreen-Approved Composters

BuildingGreen approves in-vessel commercial composters, which require the smallest footprint and are most likely to be suitable for a densely populated area.

Why... Read more

Welcome to the quiz portion of Saying Goodbye to the Office—and Hello to Housing!

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


Welcome to the quiz portion of Designing for Future Weather (recorded webcast)

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


1. Understand the science of climate-change predictions.
2. Stay abreast of changing climate models.
3. Learn how to make use of future weather... Read more

I'm looking for products that have cradle to cradle documentation, as well as EPD's & HPD's and are red list free.  What are your go to websites when you're researching products?

For those of you who are close to CLT and mass timber, has the jump in US wood price also impacted the pricing of CLT on your projects, or viability of CLT compared to the cost of steel or concrete frame buildings?  

If anyone has price data comparing CLT today to pre-Covid pricing or any metric that would describe the percentage change... Read more

Hi all - 

I have heard a good deal about SBTI in the last while and am wondering about this group’s firms’ engagement with them. We reported one year through CDP, and it was not very useful. It focused entirely on Scope 1 and 2 emissions, which are over 1000x times less than our semi-controllable Scope 3 (buildings’ embodied carbon and... Read more

Hello Green Gurus,

Here is the information for this month's first Peer Networks Webinar, Previewing the WELL Equity Rating: a roadmap for advancing DEI. So sorry for the short notice - we had a pileup of tech issues and time off. We hope you can still join us!

Register HERE.

Previewing the WELL Equity Rating: a roadmap for... Read more