ASHRAE 209 in all its glory has been uploaded. This will impact our architectural process, for better or worse, so we should embrace it and learn from it. The revised AIA Energy Modeling Design Guide (due out next year) has been timed to correspond roughly to 209 coming out and will include references to it. The first few energy modeling '... Read more

Hi All,

I'm working on a LEED for Schools project under 2009, and received some amorphous comments back about our Mold Prevention Plan. We used the LEEDuser template as a guide, while also referencing the EPA document the credit is based around, but the reviewers feel we haven't provided proper metrics. The EPA plan is something like... Read more

Welcome to the quiz portion of Materials Transparency & LEED.

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


1.  Describe the documentation needed for products to meet the Building Product Disclosure and Optimization: EPDs credit, Option 1 in the LEED v4 BD+C and ID+C rating systems.... Read more

(posting here for Kira)

Sustainable Design Leaders:

Is your firm using the AIA COTE Top Ten Toolkit in some fashion? COTE would like to hear from you, especially if you are willing to share your story. 

Specifically, we'd like to share best practices and lessons about how it is working (with certain types of projects, at... Read more

I am getting started on a research project to evaluate the feasibility, costs, and benefits of using phase change material (PCM) to passively regulate temperature in Minnesota buildings. If anyone has experience designing with PCM, installing PCM, or occupying buildings with PCM, can you share any lessons learned that would be relevant as... Read more

What sorts of boilerplate and legalese will we need on the BIT User site? For example:

I'm not saying you need any or all of those, but I'm just giving a heads-up in case you need to check with your legal advisor.

I can link to those documents from the site footer.

I've been researching the job description for "Director of Sustainability" and Sustainability Director" as I'm at a point where Sustainability Specialist no longer seems to fit.  If you have either of these titles and are willing to share your job description with me, I'd appreciate it. I need to write my own job decription and I can write what... Read more

Hi everyone,

Thanks so much again to everyone who attended the Spring 2024 SCL Summit. The report is now available and is a public document that can be shared.

Please feel free to email me with any questions. Enjoy!

It was great to see everyone who was able to join in the peer networks webinar and to be able to share a brief update on what the Defining and Measuring Resilient Outcomes working group has accomplished over the last year... and what we are looking forward to tackling in the coming year. 

I've both attached a copy of the deck here and... Read more

For those of you working in jurisdictions with both prescriptive and performance-based commercial energy code pathways, roughly what percentage of your projects are using the performance pathway? How do your project teams decide which pathway to follow?

In Minnesota we are seeing very few projects pursuing the performance pathway,... Read more

Exterior shade or screening devices are generally much more effective at reducing solar heat gain than their interior counterparts.

BuildingGreen-Approved Shading

BuildingGreen approves exterior window and glazing attachments that reduce solar heat gain and glare or redirect daylight, providing important energy benefits while... Read more

Greetings, SDL network - We are attempting to resolve an issue with how data center projects calculate baseline EUIs for the AIA 2030 Commitment and could use some help from this network. With projects that comply with code prescriptively (i.e. not energy modeled), we have found the default baseline assumptions within the DDx platform are not... Read more

Hello All,

A group of us (three architects and a builder- sounds like there should be a joke here) were debating this and we  are stumped.

Application: Residential exterior trim.

50 year warrantied composite product of agricultural byproduct with PVC (EPD not published yet) vs 100 year (if primed on all sides and painted or... Read more

Hi gang,

Following up on the recent Air Quality Design Jam at the summit, I’d like to round up the folks interested in supporting an Air Quality Working Group.

Didn’t attend the summit? No worries – everyone is welcome! We had a good group the other week and several of us want to continue the conversation.

The design jam... Read more

I'm hoping someone knows the anser to this question. For the LEED ND certification the minimum requirement is "The LEED project should contain at least two habitable buildings and be no larger than 1500 acres." Does habitable mean buildings with dwelling units?

It may take hundreds or thousands of years to return to pre-industrial-age levels of atmospheric carbon dioxide, but the loss of animal and plant species that is occurring today is, practically speaking, irreversible. It will take millions of years for evolution to fill the ecological niches being vacated by extinctions and restore healthy... Read more

I took a first pass at content for the Energy Audit best practice, see the uploaded file.