Choose a photovoltaic (PV) system to fit your energy needs, budget, and the space you have for installing the modules.

BuildingGreen-Approved PV

BuildingGreen approves PV modules that have high warranted minimum power ratings and high PTC (PVUsa test conditions).

Building-integrated PV (BIPV) products approved by... Read more

Hello good people and fabulous troublemakers,

PFAS is in everything. In May, the NY Times published an article about this, along with the governments work to remove it from drinking water. https://www.nytimes.com/2024/04/10/climate/six-things-to-know-about-forever-chemicals.html

As you may know, a working group has been gathering... Read more

Hello SD Leaders!

Two weeks ago a group of us gathered for the Winter 2020 Sustainable Design Leaders Summit. Those of us from BuildingGreen that were on site, greatly appreciated everyone's time and energy. It's always a pleasure to work along side you all!

Here is the summit report!

Reminder: We are giving a priority look... Read more

I am forwarding this request from Kate Simonen from the Carbon Leadership Forum to support a grant application for this research. I don't know if the link will work in this format but if you have questions or want to sign you can contact me or Kate and I can send you the mail with the link my email is:  lstrain@siegelstrain.com     Thanks... Read more

We are trying to figure out how we are going to meet the LEED Credit for Building Life Cycle Impact Reduction for the first time.

One approach we're trying out: We're taking the results of our Tally model and looking at potential reductions from low-carbon concrete. However, the problem I am encountering is that when I take some of our... Read more

I'm advising a nonprofit organization (the Retreat Farm) on whose board I sit that is renovating a large, 8,000 sf, 19th Century barn into a large community meeting space and wedding venue. We are looking for a source of either folding or stacking chairs that are durable, low-maintenance, and environmentally responsible. We may be seeking... Read more

Hi All,

I have a commercial restauranter in Colorado who is (reluctantly) considering induction cooking. Does anyone know of any good resources out there that can help make the case for this? That would include testimonials, research, videos, testimonials, or whatever else can help get a commercial kitchen comfortable to moving to... Read more

Welcome to the quiz portion of Better Choices in Low-Slope Roofing.

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


1. Explain life-cycle impacts, health and environmental hazards, and durability of low-slope roofing options.
2. Classify situations for which reflective roofing... Read more

Hi - I'm wondering if you have recommendations for a web/mobile app for occupants to self-assess comfort at regular intervals. I've downloaded comfy, but it wants to actually DO something about thermal discomfort by alerting discomfort and connecting, I believe, to the BMS. We just want to collect information at this point. And since I'm a... Read more

If your HVAC designers are addicted to the crack that is Trace 700, and knowing that Trane is giving up on that product in the coming year, what loads program are you weaning* them onto?

Asking for a friend:  Have any of you had success in using the Revit plug-in for loads?

*When told that they should use IESVE for loads, our HVAC... Read more

Following my retirement from BuildingGreen, I’m also looking to retire from the nonprofit Resilient Design Institute, which I’ve been leading since 2012. My default plan is to sunset the organization in the fall of 2024, but I wanted to offer the idea of someone (or multiple people) taking over the organization.

RDI is incorporated as a... Read more

Hey all,

At the retreat, many of you spoke to me about wanting to learn more about our Foundations Resilience event in Houston in November. As it happens, our website just went live and I thought that I would share it with the whole group. Registration (for those interested) will be up and running very soon, but this should give you a... Read more

Hi! Over the last 10 years, the firm where I work in Boston has predominately designed housing & senior living projects in the the Boston Metro region, with the occassional project in NH, CT, RI, and NY. We have built projects as far south at DC, but never designed anything to my knowledge in California in our 55 years of operation. A... Read more

Hi Green Gurus,

We have a lot going on this week, and I know it’s hard to keep track of everything, so I’m providing this quick update.

Conveniently, we have also just launched the new Peer Networks Hub on BuildingGreen.com, with a Calendar page where you can see all upcoming events (and a link to recordings of past events). You... Read more

Wall and corner guards increase durability, but these products are typically made of PVC.

BuildingGreen-Approved Guards

BuildingGreen approves products that avoid the use of PVC and are made with recycled content, FSC-certified wood, other biobased materials, or less-problematic plastics. 

Health and Environmental... Read more

Hello all,

Does anybody know of a substitute for Ecotect's solar tool? I use it to very quickly test shade options and I love how I can easily test horizontal and vertical elements, tilting and rotating them. I can have a window with the façade on one side and the sun path with the shadow mask on the other side. It is easy to use and... Read more