The LBC v4.0 materials imperatives for Responsible Materials (Core) & Responsible Sourcing require a majority of wood materials (by cost) to be FSC. Sure. But what is - or isn't - considered wood? The Clarification page for the imperative's scope and a key definition poses a perplexing conundrum: 

"All wood included in the Materials... Read more

Hello SD Leaders!

Two weeks ago a group of us gathered for the Winter 2020 Sustainable Design Leaders Summit. Those of us from BuildingGreen that were on site, greatly appreciated everyone's time and energy. It's always a pleasure to work along side you all!

Here is the summit report!

Reminder: We are giving a priority look... Read more

Welcome to the quiz portion of Shoebox Energy Modeling.

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


1. Explain the difference between a shoebox model and a whole-building energy simulation.
2. Approach shoebox modeling according to project type and software tool.
3.... 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

Five types of green buildings explained. Check out this great infographic by the Pembina Institute: What do net-zero and zero-carbon buildings mean for energy use and climate pollution?

Hello everyone. I am seeking some guidance on crafting an arguement for why my firm should support a change to the Washington State Energy Code which would mandate electric heat pumps for commercial builidngs.  AIA WA is working on the state commercial energy code update under consideration this spring.  We have been invited to sign on to an... Read more

Hi all, 

Thank you again to those of you who attended the Spring 2024 SCL Summit! We had an amazing day of learning from one another, including from our presenters.

The slides for the 5-minute presentations are below, as well as the BuildingGreen slides from the Summit. Please be aware that we have permission from all of the... Read more

We are trying to figure out how we are going to meet the LEED Credit for Building Life Cycle Impact Reduction for the first time.

One approach we're trying out: We're taking the results of our Tally model and looking at potential reductions from low-carbon concrete. However, the problem I am encountering is that when I take some of our... Read more

As with window and glazing products, the energy performance of skylights and roof windows varies greatly among different products and should be carefully considered.

BuildingGreen-Approved Skylights

BuildingGreen approves products that feature advanced thermally broken frames that dramatically reduce thermal bridging and improve... Read more

Hi SCL,

I realize that there are already a couple of threads on this topic, but I didn't see anything from the past year.  We have been trying (unsuccessfully) to work with large rental companies to request jobsite trailers that are at a minimum energy efficient, and ideally solar/battery ready and/or built to passive house or similar... Read more

Small Firm Sustainable Design Leaders –

I find it hard to believe calls for session proposals are already out for next year’s AIA Conference on Architecture.  I feel like I just got back!

At my firm, we try to have all principals and associates to submit a proposal each year.  I had a couple of take-aways from this year’s... Read more

Hi All,

I have a commercial restauranter in Colorado who is (reluctantly) considering induction cooking. Does anyone know of any good resources out there that can help make the case for this? That would include testimonials, research, videos, testimonials, or whatever else can help get a commercial kitchen comfortable to moving to... Read more

Hello all,

Does anybody know of a substitute for Ecotect's solar tool? I use it to very quickly test shade options and I love how I can easily test horizontal and vertical elements, tilting and rotating them. I can have a window with the façade on one side and the sun path with the shadow mask on the other side. It is easy to use and... Read more

The BuildingGreen Guide to Thermal Insulation provides detailed guidance on insulation products and practices, including recommendations on what insulation to use and what to avoid. It's a treasure trove of information for architects and designers, builders, and anyone who is actively considering the impact of insulation on the quality of your... Read more

Upman LaTole

Hello friends, Posting this to help out a friend that you all know!

(please reply directly to Kira at her email below) Tx

Dear Gurus, 

I am curating/hosting a panel at CarbonPositive RESET:

DESIGNED FOR CLIMATE: A New Construction Showcase

North & South America: September 8, 2020 | 4:45-5:25pm (PST)

Welcome to the quiz portion of Equity in Design and Construction: Seven Case Studies!

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