I've been hearing recommendations for bipolar ionization, as a way to filter airborne virus particles in HVAC systems while avoiding the energy penalty of increased ventilation. However, I've also heard that ionizing equipment is dangerous because it produces ozone.

Does anyone have any insight into the effectiveness and/or cautions... Read more

Our building scientist has been using Insight 360 to model daylight and document it for LEED certifications.  However, it appears that Autodesk is no longer fully supporting the tool and may eventually stop all together.  (we have not been able to run simulations for weeks due to a change to how "cloud credits" work on their end that they... Read more

Hi everyone,

As designers who sometimes work in the field of healthcare, we occasionally like to gather data about both current attitudes and future possibilities. Steffian Bradley Architects would greatly appreciate your participation in our 2018 survey by completing the questionnaire linked below.

All responses are anonymous to... Read more

Plastic windows come in both ABS and vinyl (PVC). Even though PVC is particularly loathed by environmentalists, energy performance is BuildingGreen's primary green consideration for windows, and some vinyl windows offer exceptionally strong energy performance, often with competitive pricing.

BuildingGreen-Approved Plastic Windows

... Read more

I am looking at having staff members take a materials course and deciding between Parsons Healthier Materials and AIA Materials Matter certificate programs. Does anyone have feedback on either? Bonus points if you know about both and can provide a direct comparison. Thanks!

Welcome to the quiz portion of "The Potential of Prefab: How Modular Construction Can Be Green"!

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


Dear Gurus,

At Greenbuild this year I'll be discussing how statistics can lie (in the context of green building claims).  I'm collecting examples of this to prepare.  If any of you know of examples, please send them to me! 

Here are a few of the fun ways statistics might lie that I would be looking for: biased or too-small sample... Read more

Hello Green Gurus.

I've been looking into EPDs lately and ran across a few companies with Product Envionmental Profiles (PEPs) which they say are also known as EPDs. Does anyone have any experience with PEPs or know if they actually are EPDs? They reference ISO standards 14040 and 14044 in the writing and ISO 14025 in the list of... Read more

Hello Green Gurus,

Here is the information for this month's Peer Networks Webinar, Making the Case for Equity with Data: a Free Tool for Project Teams. We hope you will join us!

Register HERE.

Making the Case for Equity with Data: a Free Tool for Project Teams
Tuesday, July 27th, 2021
1pm - 2pm ET (10am - 11am... Read more

What better way to follow up the magic of a live presentation from Peter Yost than with 30 free days of BuildingGreen Premium?

Hi All:  We are in the design phase for a 5,700 SF project in NH. The team is taking care to drive down embodied carbon where possible. It will be NZE.

A1-A3 emissions are coming in at 67.15 kgCO2e/sf, of which 11.97 kgCO2e/sf is a hot spot attributed to permeable paving and concrete pavers (a little skewed, since lot and patio sizes... Read more

Welcome to the quiz portion of Resilient Design—Smarter Building for a Turbulent Future.

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


1. List three motivators for resilient design and at least three actions that address each motivator.
2. Explain why climate change isn't our... Read more

I'm wondering if people are seeing any increase in WELL or Fitwel certification interest? Or any other 3rd party systems aimed at health and wellness? WELL seems like a higher bar and now WELL v2 offers more flexibility. Is interest and adoption of 3rd party health and wellness certs growing? 

Successfully managing the LEED documentation process requires specific knowledge, tools and skills that are not covered in the LEED Reference Manual. This condensed, online training is based on the LEED Project Management course that GreenStep developed and teaches through the University of California–Berkeley. As part of this interactive... Read more

Nancy Eve Cohen is the managing editor at BuildingGreen. She brings the highest standards to her work, with the goal of providing trusted and accurate information and analysis for BuildingGreen’s readers.

Previously she worked in public radio as a reporter and editor for more than two decades, where she specialized in environmental... Read more

Hi folks,

We’re working on the agenda for what’s shaping up to be a really awesome Summer Summit at a great new venue in Massachusetts. There is an awesome group already registered, and we’d like to fill the remaining slots soon so that we can develop the agenda with your input.

If you’ve been planning to register, please do it... Read more

Hello - Other than hiring an acoustic consultant, I am wondering what in-house tools you are using internally at the design stage for modelling acoustic performance? 

Thanks, Mona

Hello Sustainable Advising Leaders,

Here are the notes from the last Zoom call. We had a great turnout! Looking ahead, now that things are rolling along we’d like to get into the rhythm of a regularly scheduled monthly call. Since Tuesdays seem to work well for most people, I am proposing the 4th Tuesday of the month from 3-4pm ET. That... Read more