Untreated rainwater leaving a developed site is effectively a chemical spill, laden with pollutants that include oil, sediment, heavy metals, nitrogen, and phosphorous. The heat carried by stormwater is also harmful to fish and other aquatic organisms.

BuildingGreen-Approved Systems

We approve systems that:

Welcome to the quiz portion of How to Succeed with the Living Building Challenge: 12 Teams Share Tips.

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


1. Prepare for LBC imperatives.
2. Structure an LBC process around absolute goals, with proactive leadership and follow-through... Read more

Hi all,

Later today, we will be delivering the BITuser development site ready for content input. Andrea has created instructions to help get you started.

We would like to set up a few editor profiles for you. Could you let us know who should have a profile for content management? We need first and last name and an email.

... Read more

CALL for applications: national COTE Leadership Group

We need you! Or the dedicated, enegetic people you know ... 

Please consider encouraging applications (or applying yourself) for the the COTE Leadership Group. 

We have 2 1-year slots this year ... plus 3 3-year slots ... and we are looking for a diverse slate (diversity... Read more

Successfully managing the LEED documentation process requires specific knowledge, tools and skills that are not covered in the LEED Reference Manual. This condensed, online training is based on the LEED Project Management course that GreenStep developed and teaches through the University of California–Berkeley. As part of this interactive... Read more

Curious to see if your firms have researched metals and established a preference for what you use for roof and wall panels?  I'm interested in ranking environmental performance for painted steel, galvanize steel, weathered steel, painted aluminum, zinc, etc.

Hey Sages, Just lobbing this over the transome - not sure if anyone else cares :) but this would be a great group to dig in if anyone IS interested.

 For the past few years, I've been working on melding two completely separate worlds - our world (with typical project delivery) and the world of Agile (not just software development process... Read more

Lauren Shumaker (Turner Construction) and I are starting a group to focus on improving the submittal process, currently focused specifically on healthy & sustainable materials and the use of the mindful Materials library. The purpose of this working group would be to align project management and LEED project software (ex: Procore, CMiC,... Read more

Hello Sustainability Leaders,

Great to see some of you at Greenbuild last week.  Thanks to all who responded to Nadav’s post-election blues post.  Lots of helpful insights and sentiments that left me very grateful to be part of this community.  On a related note, since the election I’ve been asked by people in our office and in life if... Read more

Anyone using the USG EcoSmart drywall? I'm writing a short product review and am looking for some quick feedback. I'm particularly curious about reduced greenhouse gas emissions and overall cost. Thanks! Brent

Hello SDL friends,

It has been an amazing opportunity to collaborate with so many of you through this group or through my work with Tally, the USGBC, ILFI, and in my role as an environmental researcher at KieranTimberlake. This is not so much a goodbye as it is a "hope to see you soon." I am making a shift away from building design into... Read more

Hello All-

  We have a K-12 school project that is using a R-60 flat roof assembly as an energy & costing benchmark (along with other energy efficiency measures but this is the relevant detail to our question).  The project mechanical engineer is not onboard with a number of our energy conservation measures and has been sharing... Read more

Hi All,

I'm teaching a class this semester at CU Boulder on Zero Carbon Buildings and Cities (a new class that I'm making up as I go). The hardest part, I'm finding, is locating some good materials that cover the basics of energy efficiency for non-building engineers or designers (we are energy and sustainability generalists in this... Read more

I'm putting together information on natural gas bans (or put another way, all electric buildings) for an advocacy effort and looking for some experts. Anyone have thoughts on banning natural gas and other fossil fuels on residential projects? Specifically what are the considerations/challenges/opportunities at each scale (single family, low... Read more

Interior doors may be a source of indoor emissions, and wood can be unsustainably sourced.

BuildingGreen-Approved Doors

BuildingGreen approves interior doors made from FSC-certified wood or reclaimed wood as well as composite doors with environmental features like:

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