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

Happy new year everyone!

My name is Vandita Mudgal, I am the first ever 'Sustainability Engineer (district)' for Hensel Phelps N. California district (covers Nor Cal and Pacific NW). As mentioned, this is the first ever sustainability position at Hensel Phelps, therefore I am developing a lot of processes and systems for our district... Read more

Hello, what acceptable levels of air quality are you using to evaluate natural ventilation strategies for your projects?  In our Living Building we only open windows when PM10, PM2.5, etc. are within LBC and WELL limits.  In a seasonally smoggy urban environment, this limits how often we can utilize natural ventilation even if the outside... Read more

My name is Boyd and I’m the newest member of the BuildingGreen Peer Networks team. I’m joining BG after a long line of jobs in the service industry. I’ve worked everywhere from breweries to adventure sports companies and I’ve loved every job along the way. I was drawn to BG because of my history of meeting people and fostering connections and... Read more

Hello Green Gurus,

We have an exciting new addition to the Peer Networks Hub to share with you. The recordings of this summer’s 5 minute presentations are finally available! You can view the full list on the Resources Page in the Hub. Using the headings at the top, you can sort by presenter name, title, or the date or event at which the... Read more

In the run-up to Earth Day 2023, we're trying something new at VMDO: Full, public transparency on everything we know about how our portfolio is performing (or how we anticipate it performing). Here's a link to all of the details on our sixth year of reporting to the 2030 Commitment and more: https://www.vmdo.com/radical-transparency-commitment-... Read more

Gurus -

I'm looking for (or to build) a set of US district energy projects for developer-led mixed-use/residential neighborhoods/districts.  Does anyone have a resource for this or have started something similar?   

I am not a member of IDEA but utilize their site quite often. Any other resources come to mind?  I'd be happy to... Read more

Welcome to the quiz portion of When Passive House Goes Big!

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


Evaluate the main barriers to achieving the Passive House Standard on a large, urban project.

Identify design strategies for successfully and cost-effectively achieving the... Read more

Hi everyone,

We’re excited to announce that registration for our Summer 2024 Sustainable Design Leaders Summit is now open! Join us from July 15th-17th at IslandWood on Bainbridge Island, a beloved location where we’ve hosted Summits multiple times before. Register early to save your seat, and feel free to reach out to me with any... Read more

Has anyone here found an alternative to XPS for the void former?

A structural engineering contact was included in recent conversations about embodied carbon in insulation materials and brought to our attention that this is a common use for XPS that has nothing to do with its insulating properties. It is typically used where concrete is... Read more

Greetings Gurus!

For those who missed it - last year we had a blast enjoying all of the brave souls who shared their awesome talents with us all - what could be better than to start the new year with friends and fun!?!

(See links below for last year's program)

If you are willing to perform again - that's great! (just cause... Read more

Some plasters have extremely high embodied energy or petroleum-based ingredients.

BuildingGreen-Approved Plaster

Products approved include:

Hello AEC Sustainability Leaders (aka the Green Gurus)!

As we continue to promote and expand the use of mass timber on our projects, it is becoming increasingly important that we learn more about the spectrum of impacts that this material selection is having on the forests and communities from which we’re sourcing our wood fiber…both... Read more

We are hiring! Please share with any potential talented and passionate candidates.

https://archinect.com/jobs/entry/150052970/sustainable-design-specialist

ps. And, yes we recently rebranded for our 40th anniversary for those who may be confused :) 

Are FSC glulams available? By many manufacturers? Which ones?