Ground- and water-source heat pumps move refrigerant or water through the ground or a body of water for use as a heat source (for indoor heating) or heat sink (for indoor cooling).

BuildingGreen-Approved Heat Pumps

BuildingGreen approves:

Hello all, 

Any Fitwel experts out there? I have a 30,000 sf boutique hotel + spa client who would like to certify under the Fitwel rating system but Fitwel folks are telling me that no scorecard is currently available to hotel clients (can't use mulit-tenant or resi, that a hotel scorecard is under development). Has anyone used Fitwel... Read more

I'm working with a project team that is looking into bird control options to prevent nesting/roosting/pooping on the scrim that is designed to scrim their building's facade.  They are looking at electrified tape, repellents, laser systems, etc -- Options that don't dramatically impact the building design.  The products they're looking at claim... Read more

I'm looking to compile an outdoor weather station for a local project, and we'd like to add local outdoor CO2 information to our data. I usually work with Onset HOBO products, but they don't offer an outdoor CO2 sensor. Their weather stations can take data from any CO2 sensor with an analog output - does anyone have any suggestions?

Hi All, I was initially reluctant to share this, but I've seen similar posts and I think it's in line with our mission and interests so I'll go ahead with it.

Tomorrow 12/9 at 1 PM EST I'm moderating a panel of industry leaders in public health (as it pertains to buildings), construction finance, and project development to review the... Read more

Hello all,

I need future weather files for a project. We are looking at three years, 2050, 2075, and 2095 using two climate change scenarios, low emissions, and high emissions. I have seen ARUP's Weathershift site that uses RCP 8.5 and RCP 4.5. Are we assuming that 2.6 is not achievable? I would have used this as a low emissions scenario... Read more

Hello all, 

Wondering if anyone has experience with lead limits in electrical cable and wiring? 

LEED for Healthcare allows a limit of 300 ppm of lead in electrical wire and cabling - my search for compliant products has been all dead ends. (MRc PBT Source Reduction - lead, cadmium, and copper)

Acceptable regulations for... Read more

Hi all,

Thanks again to those who presented at the AIA Show & Tell! Here are the slides for some of the fascinating presentations we saw. Please do not share the slides outside of the networks unless they are marked “PUBLIC.”

There may be more to come; if you presented but did not yet provide permission for your slides to be... Read more

Hello Green Gurus,

A close colleague of ours, Frances Yang of Arup, is distributing a survey developed in partnership with the Healthy Building Network (HBN).

The survey asks for which product categories you need more health information. Answers will help inform which product categories HBN next incorporates into its HomeFree and... Read more

Hello lovely Green Gurus. Hope you all are well. I am wondering if anyone has installed an indoor sports floor that performed well and is low-emitting. This is for a multi-purpose gymnasium at a community center. Any chance?  Thanks All!

Welcome to the quiz portion of The Great Eight: High-Impact Material Choices for Green Building.

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


1. Specify green building materials in product categories that truly make a difference for human health, the environment, or both.
2. Conduct a... Read more

Overland Partners is looking for a Sustainable Design Analyst with 2+ years of experience working with teams to implement sustainability strategies and building performance simulation. 

More details here: https://www.overlandpartners.com/careers/sustainable-design-analyst/ Please pass along if you know of someone who may be a good fit... Read more

Hey, everyone! Many of you on this forum have probably already RSVP'ed but I wanted to put a plug out there for the happy hour event on the evening of November 2nd at our office in San Francisco.

The event is co-hosted by Architecture 2030 and national and local AIA COTE. There will be food, drinks, great people, and a chance to preview... Read more

Hi all - I heard from sevearl of you at Greenbuild that you have learned from and perhaps even shared the Path To Zero Carbon series internally at your firms and externally. As I mentioned at Greenbuild, we are attempting to hand off the series to a non-profit, with the idea that groups of experts (including many of you, I hope!) will provide... Read more

Board insulation has good thermal performance ranging from about R-4 to R-8 and is used as an integral part of a building envelope’s continuous insulation system.

Because board insulation is used on the building exterior, it is not always subject to the same material health and emissions requirements as batt insulation used inside the... Read more

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