We have an MEP engineer that is calculating peak loads at about 6 times passive house levels on a large commercial building that is at or near passive house levels of insulation and air infiltration. We suspect one reason is that he is figuring a 50% efficiency level for the ERV. We are showing him ERV systems with 80-90% efficiency, but they... Read more

Dear SDL: Thanks to all who have already given their support to the AIA Resolution on Urgent and Sustained Climate Action. We're into the final push of getting out the vote to pass the resolution next Wednesday, June 5th afternoon in Las Vegas. This requires 2/3s of the voting delegates to pass. So we're asking anyone who 1) is attending as a... Read more

Hi everyone,

Have your projects explored, pursued, or successfully achieved the domestic content bonus for PV systems within the Inflation Reduction Act (IRA) Investment Tax Credit? I have a project that is considering adding the IRA domestic content requirements and we are trying to understand the nuances and potential challenges (cost... Read more

Hi, folks! 

I was recently asked if BuildingGreen could connect prospective speakers to an event organizer in Chicago. Beyond the leaders in the BuildingGreen networks relayed, I wanted to share that the exercise led me to the Women and Climate speaker database: https://www.womenandclimate.co/speaker-database 

When filtering by... Read more

Hi SDLers! I hope early fall is finding you well.

There is a current opportunity to make a difference in the campaign to reduce use of toxic flame retardants.

Arlene Blum and the Green Science Policy Institute, whom many of you know, are currently organizing a campaign of support for the CA State Fire Marshal's proposal to allow... Read more

If anyone else has gotten confused going between parts-per-million and percentages (parts per hundred!) for material reporting here's a little infographic that might help. Feel free to use or improve! 

Hello all!

I'm new to the group, and so excited to be here. Two part question here (as we think about processes and new year goals).

I am at a smallish firm (20 people) in Boston helping to reform our processes to enable even those that are not steeped in sustainability at a daily level to be comfortable looking for opporutunities... Read more

B-Boy Newsy

Happy Thursday, all!

I will be presenting with my colleague, Emily Hoffman, and our counterpart from Seattle, Duane Jonlin, on how firms can contribute more to aggressive energy and carbon targets, from the perspective of three people that see thousands of projects each year.  We see the best and the worst, and we're convinced that our... Read more

Hi Everyone - I hope this isn't a repeat topic. We are starting to get familiar with TallyCAT at SAR+ and have a few people testing our projects in it. Is anyone willing to help us troubleshoot or share lessons learned? We're running into a few errors and wonder if our Revit models and workflow are the issue, or if we need to be doing something... Read more

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

Are you a design or building professional who wants to learn more about sustainability—such as how to do energy modeling, improve the building envelope, or use renewables on a project? Now more than ever, it's time to join the sustainable... Read more

Hi Carbon Working Group,

It’s been a while since our last online meeting on 3/31 –- admittedly, a bit too long -- so I wanted to share some updates.  You might have seen Candice Pearson’s 5/13 post about the structure of the Contractor’s Commitment and how it’s evolving into a set of guidelines available not only to our SCL Group but to... Read more

Greetings to all of the AEC SD Leaders (a.k.a. the Green Gurus)!

Over the last two months, the 32-member Build-Back-Better (BBB) letter working group has developed a robust list of first 100-days, built-environment-focused executive actions for the Biden administration to consider. Kara Kempski, the AIA’s Director of Federal Relations,... Read more

Hi Everyone!  About ten days ago, Megan Zack posted a note announcing her new role as Chief Sustainability Officer at Wight & Company. (Yay!)  I'm so delighted that she will be stepping into this leadership role at Wight to shepard the firm in the next chapter of their journey in sustainability. 

I wanted to take a moment to say... Read more

CEUs are available for reading our entire plumbing guide. Click here to learn more and take the quiz.

Rainwater capture is increasingly important as shortages put pressure on our water systems.

BuildingGreen-Approved Rainwater Harvesting

We approve a wide range of rainwater catchment and storage systems and components, with... Read more

Hi folks,

I know the last thing we all need is another assignment, but I took a look at this survey and it really should be pretty quick. And we've been talking a lot about how we can be better advocates for the things we care about...maybe this is a chance to do that? 

From an email request: 

I am writing on behalf of an... Read more