Buildings have a tremendous impact on the environment. In North America, buildings and the building industry account for about 30% of carbon dioxide emissions, 35-40% of ozone depletion, 20-30% of municipal solid waste, vast quantities of natural resource consumption, and dramatic loss of open space each... Read more

The American Institute of Architects convention in Boston this past June was the setting for a changing of the guard in the American architectural establishment. The Institute’s first woman president took the reins, the Committee on the Environment became its largest and fastest growing committee, and the first installments of the Environmental... Read more

Ozone depletion and global warming are two of our most serious environmental problems—and foam insulation materials containing CFCs (chlorofluorocarbons) contribute significantly to both of these problems. The environmentally concerned builder or designer should make it a highest priority to avoid them. Even many of the non-CFC alternatives... Read more

Anyone aware of tools or workflows for modeling of a specific outdoor space and effective surface temperatures?  We've done a goodly amoutn of microclimate simulations, but never explicitly factored in the ground surface, in terms of emissivity and other related factors.   

Welcome to the quiz portion of Choosing Insulation: High-Performance Wall Assemblies – Unit 3.

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


1. Describe key environmental and performance factors for insulation materials.
2. Recount bottom-line insulation material... Read more

testing

Hi All! 

We have had a few multi-family projects consider this single package vertical unit with integrated ERV, but we haven't pulled the trigger for fear of the unknown. Our local engineers aren't sure how it actually performs and worry it may not meet code requirements for separation between exhaust and intake. Has anyone else used... Read more

Hello All, I've a quick question. I am looking for a few potential subject expert speakers on the topic of the Circular Economy. Any suggestions out there? 

All thoughts are appreciated.

Rand Ekman

Sitting in SFO after an exhausting but also weirdly refreshing Greenbuild. Saw many of you at the Peer Networks event, which was so awesome!

Before my flight boards, I wanted to let folks know we're seeking a new Editorial Associate. It's pretty entry level with lots of room to grow. If you know a talented writer who's got background in... Read more

Within the confines of the BuildingGreen safe space, I wanted to share the Forced Labor in the Building Material Supply Chain Mitigation Framework I shared at the 3/1 First Friday Fika. The intent is for this document to become public, but we are working through some permissions and final editing logistics. The project was collaborative... Read more

Here’s a nice NYTimes op ed on urban density that directly addresses the concern Gwen raised on out call today: 

https://www.nytimes.com/2020/03/24/upshot/coronavirus-urban-density-risks.html?referringSource=articleShare

Help. I have a contractor in need of advice on IAQ testing agencies and I'm largely uninformed about the local market of IAQ testing agencies. Anyone have organizations they'd specifically recommend or not recommend?

Feel free to email me directly if you'd prefer - awilson@ayerssaintgross.com.

Aley

Hi Green Gurus!

I am trying to find a source for this chart/graph illustrating the relative cost of design and construction versus the long term operational and occupant costs. Any thoughts are appreciated.

yours,

jp

Has anyone used the new 3M Smog-Eating Granules on a roof before? Malarkey and Soprema are offering this as an option for their roof shingles. Seems like a great technology for urban areas, but I'd be curious to see if anyone here has actually successfully specified and installed it.

https://www.3m.com/3M/en_US/roofing-granules-us/... Read more