Ventilation is essential for indoor air quality, but it can bring very hot or very cold outdoor air into conditioned space.

BuildingGreen-Approved ERVs

Heat-recovery ventilators (HRVs) and energy-recovery ventilators (ERVs) can save energy by capturing nearly all of the heat in the air being exchanged. BuildingGreen approves:... Read more

The results from the "CogFx" study are compelling, showing that people in environments with low VOCs and low ambient CO2 levels score higher on tests of cognitive function.  Specifically, they show that providing 40cfm of outdoor air per (actual live) occupant results in significantly higher scores than even the "Enhanced Ventilation" scheme... Read more

Does anyone know of reports/studies of financial benefits from the developer perspective on Passive House multifamily projects? Specifically looking for market rate (not affordable) housing examples where there is a direct market advantage (higher rents) for PH buildings. 

Hello, Green Gurus!
It was lovely to see some familiar faces (and names) in this afternoon's webinar about Low Carbon Specs. A little personal info, but I have just recently returned from maternity leave, and plugging back in to this network of passionate sustainability professionals is one of the things that actually made me look forward... Read more

Is LEED Online mind-numbingly slow today for anyone else? Or is it just me? I may give up and try again tomorrow. Frustrating as I was hoping to submit a final review today. :(

We are looking for colleagues from other firms to join a conference session proposal on "Dirt cheap Net Zero" for the ASHRAE / IBPSA conference (August 12-14, 2020, Chicago). 

We just had the grand opening of our first project designed to achieve net zero, a 50-unit affordable housing project, where we upgraded from the minimums required... Read more

Hi All,

How are folks funding training for your employees? Would it help to have free training opportunities besides lunch and learns or ones you do yourself?

For those of you outside of Massachusetts you may have employees or friends in MA that this could be relevant to.  I'm hoping my friends in MA have already heard this.

Hi folks, 

For those who have already been involved, this is a friendly reminder that our next Sustainable MEP Leaders call is Monday the 29th at 11 a.m. Eastern Time. Here is the Zoom link to join, and here is the agenda for the call.

We have also had a couple of new people join the network – welcome to Cindy Cogil and Sergio... Read more

Hi All,

My team member is leaving Webcor, and unfortunately that means we have to fill her big shoes with someone new! I thought I'd reachout here and see if you know anyone of high caliber looking for a Sustainability Manager position? Someone with LEED PM experience preferred, and a bit more technical background with MEP/ZNE ideally... Read more

Hi all,

I'm curious how various firms are approaching their own office projects, re green building certifications. I'm especially interested in medium-large firms that have multiple offices, but policies and processes from small firms may still be instructive.

Do you have a firm-wide policy or is it a case-by-case thing? Has... Read more

Resilience Resource Database

The Defining and Measuring Resilient Outcomes Working Group has been developing a Resilience Resource Database as a repository for resources related to the topic of resilience in our built environment. 

This database and map are endeavoring to show resources for resilient design across the country to... Read more

My name is Douglas Flandro. I am the sustainable design leader at CambridgeSeven in Cambridge, MA. I started my career in film and theater design. I moved into museum exhibit design with a graduate degree in interior architecture at the Rhode Island School of Design in 2003. I still design museum exhibits for science museums, nature visitor... Read more

Folks, it is with a heavy heart that I write this: Lance Hosey passed away unexpectedly on Friday. 

Many of you know him from the early days of the SDL group, or as an outsized presence at any of the many conferences where we overlap. He's been a list-maker, poll-taker and all around troublemaker in my life for over 20 years; I know I am... Read more

Welcome to the quiz portion of LEED 2009: The Missing Manual.

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


1. Stay abreast of changes to LEED NC-2009.
2. Understand the more ambiguous aspects of LEED NC-2009.
3. Explain key interpretations of LEED NC-2009.
4.... Read more

Dana Manafarm

The Sustainable Construction Leaders peer network brings together the most committed sustainability directors from leading construction companies throughout the U.S. and Canada. We invite you to apply for membership.

Products recommended by BuildingGreen avoid potentially hazardous additives and binders and have high recycled content or offer superior energy performance.

Recommended cellulose insulations are derived from agricultural waste, offer superior moisture or air leakage performance, or impart lower indoor air quality concerns than other... Read more