Just had a contractor call who said they had a university client interested in using natural-gas-fed fuel cells as an alternative to grid power in some applications.  They were interested in an intermediate scale: 300kW.

Anyone with any experience with these devices? 

Now available on demand

As more and more architects, designers, contractors and owners demand transparency surrounding human health impacts in the built environment, manufacturers need short cuts and tools to meet the call of this demand.

This webinar is intended to educate manufacturers about the market demands for creating... Read more

Hi SDL,

I'm heading to Greenbuild next week and one of my teammates who's not attending has asked me to look for expo hall vendors who are involved in Design for Freedom. He's starting up a new project that he thinks could be a good DFF pilot and wants to get some manufacturer contacts. Is there any kind of informal DFF meetup happening... Read more

I’m a volunteer member of the ASHRAE 209 ("Energy Simulation Aided Design for Buildings Except Low-Rise Residential Buildings”) Committee.  Are you familiar with ASHRAE 209? It was first published in 2018, and it outlines a process for incorporating energy modeling into the design process. 

From the forward: 

 ASHRAE Standard 209... Read more

HI All,

I have been tasked with putting together a cost comparison of doing a LEED v4 Gold building vs. making that same building Passive House. Obviously they are two different systems, with two different outcomes, and it's not really intended as a total apples to apples cost comparison, but more a value comparison for a developer.... Read more

For the fourth year in a row, we’re proud to release our sustainability survey findings, based on the real-world knowledge and experience of our clients and partners, to help determine how sustainability, resilience and wellness are perceived by the commercial real estate industry. We’ve compiled these survey results in our 2019 report, which... Read more

Hi All! This is a question for NYC and surrounding area (but if its the right fit, could extend beyond)! 

Can anyone recommend a designer for healthy and sustainable furniture for an affordable housing development?  The spaces that need funiture are: a community facility, common spaces, and residential units (for formerly homeless). ... Read more

Though BuildingGreen has long supported the use of electric hand dryers as a more environmentally friendly hand drying option, the majority of evidence appears to support paper towels as a preferred method of controlling the spread of potential pathogens. 

And even the most efficient hand dryers contribute significant CO2 to the... Read more

Hi All,

FSC is working on some exciting new research to help further quantify the carbon impact of forestry management and they are looking for your feedback.  If you are interested in providing your voice or just staying informed of what is happening in this space, please see the details below and register to attend.

FSC Forest... Read more

Hello! We are currently working on an LBC Petal project pursuing the Materials Petal. Does anyone know whether H1 lubricants are inherently Red List Free given they are food grade lubricants? We are trying to figure out whether NSF H1 registered lubricants need ingredient reporting or whether the NSF registration works similar to Delcare, RoHS... Read more

Hi everyone -

I'm writing to conduct an informal (and unscientific) poll about the green certifications achieved by office spaces (main or branch) for Green Gurus firms. SERA is preparing to embark on the journey of finding, designing and inhabiting new office space, and we're interested to hear and learn from your experiences,... Read more

Welcome to the quiz portion of The Hidden Science of High-Performance Building Assemblies.

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


1. Define hygrothermal pressure and explain what it requires of water, air, and thermal barriers in high-performance assemblies.
2. Explain... Read more

Hi SD Leaders: I wanted you to know about a terrific initiative that is part of the Project Drawdown effort called Project Drawdown Ecochallenge. The Project Drawdown EcoChallenge is a fun and social way to learn about and take action on the 100 most substantive solutions to global warming. 
Drawdown EcoChallenge provides tools and... Read more

What is the status of the roof insulation market regarding non-halogen containing polyiso boards? I know GAF and Atlas still have them. I thought JM had them as well, but seems to have taken them off the menu. Are there performance issues?