Hello SDL Leaders,

Over the past month, I have been working with ILFI to navigate the question of residuals in LBC compliant products vs. products reporting for a Declare label.

Through our conversations, it came to light that ILFI considers the LBC Red List threshold to be 10,000 ppm, rather than the 100 ppm written into the... Read more

Hi folks,

Here's the next Peer Networks private webinar. As usual, it will be recorded and shared in the network if you can't make it in person:

Thursday, July 18, 2pm EDT (11am PDT)

The Center for Active Design (CfAD), operator of the Fitwel Certification System, recently launched Fitwel v2.1, which advances a vision where... Read more

Conventional stormwater management treats rain as the enemy—a dangerous and destructive force that must be deflected away from building sites as quickly as possible.

But as we pave more and more of paradise,... Read more

Hi SDL'ers, as promised I am sending information about how to support getting flame retardants out of foam insulation. I am attaching a draft letter to Foam Manufacturers, an intro to that letter giving some background and a list of From manufacturers.   Thanks, please contact if you have any questions.   Larry Strain, Siegel & Strain... Read more

Welcome to the quiz portion of Design for Adaptation: Living in a Climate-Changing World.

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

1. Identify the major known causes of climate change
2. Describe the range and reliability of predicted temperature changes.
3. List... Read more

Hi Friends, 

I'm working on an SOP for construction waste management for LBC core and LBC materials petal projects and wanted to get your input on the comingled facility requirements. According to the guidelines, any waste that goes to a comingled facility must be a facility that has an average diversion rate of 80% or higher as a... Read more

I received the following email from Naajia at Southface.  I'll be out of town until November 8, but I'll see if there's time for me to address at least the second part before I leave:

A question regarding the BIT-User Forum was brought to my attention by a participant. Apparently when you are posting a question and you pick your location... Read more

The Sustainable Community Design Leaders Peer Network brings together planners, architects, landscape architects, and allied leaders who are committed to leveraging the... Read more

Our fledgling group had an organizing call last Tuesday, March 17th. Of course, it was a great conversation - the group is full of amazing people! The focus of our conversation was the goals and actions that should drive this group forward. I have a few ideas. Please share your own in this thread!

I start from the belief that we see our... Read more

We are cautiously rekindling the age-old debate: how are we balancing modeling software for design /visualization and performance analysis during early phase of design.  

We are heavy SketchUp users for early design, and most of our staff have access to COVE tool for early performance analysis. Problem is, I’d rather use Revit to COVE... Read more

Welcome to the quiz portion of The PVC Debate: A Fresh Look

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


1. Catalog the history of PVC in the building industry.
2. Recount the connections between PVC and chlorine, dioxins, mercury, and vinyl chloride.
3. Explain the... Read more

Hi all,

Jacobs is looking to hire specifically for sustainability needs! We have a current job posting for a Senior Sustainability Specialist now up, and anticipate a similar posting soon for a mid-level person as well. Location for these would be in the Mountain or Pacific time zones, remote work is fine; other future anticipated posts... Read more

Was anyone else surprised to see ASHRAE 228-2023 using eGRID Subregions for both the Regional Electricity Source Energy Conversion Factor and Regional Electricity Greenhouse Gas Emission Factors? In the past I have used eGRID sub-regions but also State and local utility conversion factors depending on what energy or operational carbon story I... Read more

We are putting together a free guide for firms who have not yet started to figure out what their internal standards are for healthy, low carbon materials/products. 

As part of this effort, we are looking to gather from all of you who already have standards - examples and precedent.

Also we are collecting standards from clients/... Read more

Hi all,

For your planning purposes for next year, here’s info on an in-person event coming up in 2024:

We are excited to announce that we will be hosting an all-peer-networks workshop for SMEPL, SDL, and SCL members at Miller Hull’s office in Seattle on July 15, 2024. We’re still working out the details, but given the recent... Read more

Dear All,

I'm happy to announce the Call for Speakers for our next Gulf Coast Green conference, which will take place June 1, 2018 at Rice University in Houston.  The theme is Resilience: Beyond Recovery.  (Harvey, you know).  We absolutely love to have SDL members at Gulf Coast Green, and I know there are several of you who specialize... Read more

I am forwarding this request from Kate Simonen from the Carbon Leadership Forum to support a grant application for this research. I don't know if the link will work in this format but if you have questions or want to sign you can contact me or Kate and I can send you the mail with the link my email is:  lstrain@siegelstrain.com     Thanks... Read more