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

In this live webinar on the sustainability of wood construction, we tap the expertise of leaders in the field and look into three main issues:

Small Firm Sustainable Design Leaders –

I find it hard to believe calls for session proposals are already out for next year’s AIA Conference on Architecture.  I feel like I just got back!

At my firm, we try to have all principals and associates to submit a proposal each year.  I had a couple of take-aways from this year’s... Read more

Hi SCL,

I realize that there are already a couple of threads on this topic, but I didn't see anything from the past year.  We have been trying (unsuccessfully) to work with large rental companies to request jobsite trailers that are at a minimum energy efficient, and ideally solar/battery ready and/or built to passive house or similar... Read more

We have a project looking to use Radiant Floors to help with space heating.  I don't have experience with this so I'm looking for any insights.  Pros / Cons? 

This project is a non-profit and is needing to reach LEED Silver minimum.  This is in Washington State.  Thank you for your help.

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

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

Auto-quiz used for CEUs for attendees of the 2023 SDL Winter Summit.

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

I am looking for a Mechanical Engineering firm in New York state who works in mid-sized commercial (ideally hospitality or multifamily experience) and who has experience with geothermal GSHP systems.

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

Welcome to the quiz portion of Dream Materials: What Do You Really Want to Build With?

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


1. Differentiate the tools that encourage accountable design.
2. Identify materials that are hazardous and list certifications that optimize for... Read more

Good morning. If you're worried  like I am by today's new IPCC Report and would like some helpful explanation I recommend reading climate scientist Zeke Hausfather's lengthy Twitter feed summarizing key aspects with graphics. It's here https://twitter.com/hausfath/status/1424642708291821569?s=21

of course we need to see this as an even... Read more

Hi All,

USGBC MA is doing a study on the cost of net zero energy buildings in MA.  I’m wondering if you all have any data to share on plug loads in ZNE projects. I’m looking for single family res, 2-4 unit residential, +/- 60 unit residential, 10-12 story office, and k-12.  The engineers have presented initial results and their... Read more

Hey Gurus:

I have a client who is interested in reporting to their superiors on the status on energy codes in different states across the US. They are hoping to find some kind of summary that might show relative costs for HVAC systems under the various energy codes in effect across states. They are also interested in data that is... 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