Hi Green Commons,

It’s been eerily quiet here since Tuesday night. I’ve been quiet mostly because I just didn’t know what to say. The election results are certainly a blow to pretty much everything we’ve been working for. There is so much we don’t know about things might play out, but I’m feeling a range of emotions ranging from... Read more

Hi folks,

We're currently scoping out a BuildingGreen report on how the global market for recycled/recyclable materials has changed over the years, and what that means for waste management practices in construction, and for the availability of recycled content materials. 

This ties into the goal from the SCL Summit about LEED... Read more

Prefabricated, or modular, buildings can provide environmental advantages over conventionally constructed buildings. They are built in factories where manufacturing and cost can be tightly controlled, so materials are kept out of the elements, there is less waste, and thermal properties and air sealing can be enhanced. There are also fewer... Read more

Concrete and other cementitious materials have both environmental advantages and disadvantages. As builders and designers, should we be looking for alternatives or embracing concrete over competing materials?

This special report takes a look at how these materials are made, presents the key environmental considerations relating to their... Read more

Hi - We have some projects within reasonable reach of ILFI's Zero Carbon Certification, which will require purchasing some off-site renewable energy. As a State Building Code Council member, I'm also eyeing the Zero Code which we will seriously consider in the next 12 months; this also requires a purchase of off-site renewable energy. 

I... Read more

Welcome to the quiz portion of Innovative Products and Technology from the Greenbuild Expo

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


1. Direct attention to green building products and technologies that show exceptional potential, from a whole-systems perspective, to bring the... Read more

In trying to help a client write a case study on avoided carbon by using slag and flyash, I am having trouble finding a one for one equivalency that can be verified.

I have found for one pound of flyash, one pound of carbon is saved - but I can't verify that.

Appreciate the feedback!

Fellow Sages,

I was at an interesting lecture last night. Phil Bernstein (formerly of Autodesk, now at Yale) was speaking (in Lawrence, Kansas, at the U of Kansas) about AI and design/AEC ... you may know that he authored the 2022 book, Machine Learning, about AI and the AEC field. 

Phil has a very interesting posture about AI... Read more

Dear all,

A mechanical engineer on a healthcare project we are working on has asked for help in dividing the ventilation calculations between ASHRAE Standards 170 and 62.1; can anyone here help shed some light on it?

"This is the first time I am working on LEED for a hospital and I am not sure how the template wants me to show... Read more

The BuildingGreen/GreenStep exam prep materials are... Read more

Hi all: I'm looking for experience, insight, or advice as it relates to ISO 14001. I know it is more popular internationally than in the US, and I am trying to ascertain if the the value-add is greater than the cost and effort. If your company is certified, or even if you have looked into it in any capacity, I would love to pick your brain.... Read more

So every year about this time I get to spend many lovely moments with our AIA 2030 Reporting data. In order to make the data useful the CBECS baselines/National baselines aren't great in telling us how we did.

For about half our 15 projects that we report in the average year - performing arts, convention, data science schools, etc - a... Read more

After reviewing BP language today with internal staff, we realized we'll need to add a glossary to explain industry jargon and technical terms that might not be widely used. I'd like to consolidate those terms onto one web page, a glossary. This probably should be on the list with the best practices, and it will need its own page. Thanks!

I am the Sustainability Program Manager for Sellen Construction in Seattle, WA where we build healthcare, education, office buildings, museums, historical renovations, and unique structures like sculpture parks and the “spheres” that have been in the news lately.  My role blends environmental regulatory compliance, sustainability in field... Read more

Hello all,

We are looking at ways we can use our specs to reduce toxicity in projects and one step towards that goal may be to require RoHS compliant lighting, switches, alarms, meters, etc., as required by the Small Electrical Components exception in the Living Building Challenge. Based on LBC projects I have been involved with, it... Read more

Welcome to the quiz portion of Making Your Own Electricity: Onsite Photovoltaic Systems.

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


1. Explain the difference between crystalline and thin-film photovoltaic technologies, and the uses of each.
2. Describe the ways in which PV... Read more

Hello! We are currently working on an LBC Petal project pursuing the Materials Petal. Does anyone know whether H1 lubricants are inherently Red List Free given they are food grade lubricants? We are trying to figure out whether NSF H1 registered lubricants need ingredient reporting or whether the NSF registration works similar to Delcare, RoHS... Read more

For those folks who are on our retrofit electrfication roadmap post-palooza-sub-sub-working group ;-) , I thought you might be interested in these three guides just released from BEI in collaboration with S. Winter Associates.

Here are the three Playbooks: