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

Hello all,

This month's SCDL call was full of great discussion! We decided this month that we are feeling good about where we are for the Task Force Agreement on defining social sustainabiltiy in our work. The aim is to work with this agreement for a while and see if it holds up as a process framework. There was also interest to invite... Read more

Welcome to the quiz portion of Solar Thermal Hot Water, Heating, and Cooling.

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


1. Explain active and passive; direct and indirect; and low-, medium-, and high-temperature solar thermal systems.
2. Distinguish between the three most... Read more

Trillian Dent

It is with the greatest pleasure that I announce to this esteemed group the recognition of our very own and much-loved leader Nadav Malin as an Honorary AIA member. AIA COTE had the honor to serve as Nadav's sponsor and we are pleased and delighted with this outcome (but not surprised of course.) For the record, "The AIA recognizes the notable... Read more

We apologize, but the heating fuel cost calculator is no longer on the BuildingGreen website.

Take a look at Efficiency Maine's heating fuel cost calculator instead.

All,

I've probably spoken to a few of you over the phone, but I wanted to make sure all of you know that we are hosting a 4 part webinar series on our Tally LCA software, kicking off tomorrow 10/10. We just released the new of Tally version and ended up doing far more development work than initially anticipated, in no small part due to... Read more

Old windows can be leaky and uncomfortable, but window replacements are expensive and resource-intensive.

BuildingGreen-Approved Interior Window Panels

BuildingGreen approves interior window panels with robust warranties that are designed to achieve improved thermal performance with both reduced... Read more

On a large sports project, we worked with the structural engineer to spec low carbon / high SCM concrete mixes. Much of the floor area will be sealed and polished concrete, and a concrete sub is pushing back on the SCMs saying they should not be above 20% (with a preference for 0%) for the polish to finish properly, per the manufacturer. Anyone... Read more

hi all! I'm almost at the finish line with this year's 2030 reporting...whew. I'm running into an issue that I wanted to throw out to this group, regarding the zero tool and national average baselines. Hoping some of y'all who manage your firm's 2030 data, or are just more familiar with CBECS and related data, have some insight / experience to... 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

Friends,

As some of you know, I joined Perkins Eastman last year and it has been amazing. After years of being the Sustainable Design Leader at my last firm, this move has meant I can concentrate on project work because we have such an AMAZING team, led by Heather Jaurequi and Tanya Eagle. Unfortunately, that also means I'm not in the... 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

Hey Peer Network! Curious, if we can crowd-source a solution here for the pervious pavers at our Omaha office (climate zone 5A). Apparently over the years we've tried to add different kinds of fill here (gravel) but it keeps... disappearing. Any recommendations with either a replacement product or fill item? 

Here's the Core Purpose for this group that came out of the Inaugural Summit.

We're off and running!

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

This webcast was pre-approved for 1 AIA LU|HSW and 1 GBCI LEED-specific CE hour.

Please complete the survey questions to confirm your attendance and receive your CEUs.

By providing your credential numbers in your profile, you will enable us to automatically report these CEUs to these organizations. Please check your profile to be... Read more