Composite windows come in two basic types: fiberglass, and wood/plastic composite.

BuildingGreen-Approved Windows

Fiberglass and other composite window lines have NFRC unit U-factors of 0.20 or lower. Higher U-factors are allowed for products that include significant recycled content.

Manufacturers also must demonstrate... Read more

Hello Sustainable Construction Leaders!

I have an exciting announcement today, fall Peer Network events are now open for registration! You can see all the event details and register here!

Based on feedback we received from past events and the most recent surveys, we decided against doing one long week of events for this fall and... Read more

Mark oversees strategic marketing and product development for BuildingGreen. In this role, he works closely with our Editorial, WebDev, and Consulting teams to conceive, plan, direct, and budget integrated marketing programs that support our outreach and meet customers’ needs. 

Joining BuildingGreen in late 2021, Mark brings... Read more

Welcome to the quiz portion of Finding Furniture Without Toxic Flame Retardants.

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


1. Explain why avoiding toxic flame retardants is important.
2. Explain how we were swindled into dosing our buildings and our bodies with flame... Read more

Dear All,

Greetings. On this Earth Day, I hope you're enjoying our planet's gifts and also giving your gift with reckless abandon.

As I take a short break to plan what I want to do next, this coming Friday, April 26, will be my last day at HKS. Maybe I will get a Hitchhiker's Guide to the Galaxy tattoo like Paula. 

I... Read more

We're wrapping up a multi year project that went through multiple design changes, leaving us with a ton of material samples.  Does anyone know of a good place we could donate these samples to, to keep them out of the landfill.  I'm in the greater Seattle area.  Thank you for any suggestions.

We just heard from one of our more progressive clients that they are pulling Mohawk from their shelves and are no longer allowing it on their projects. Apparently there are some chemical ingredients they objected to, but more importantly the manufacturer "lied" to the client about the content. Does anyone have an idea what this might be about?... 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

I am new to the SAL and honored to be included. I'm Summer, managing partner at Ecoimpact Consulting. I manage a small staff of sustainability consultants who focus primarily on LEED project administration and documentation services. Day to day, I am working on implementation of the technical requirements of various LEED rating systems (in the... Read more

Hello friends. On a current school project, an abuse resistant wall covering has been proposed as an alternative to our typical MDF wainscot. The proposed product has been used successfully in healthcare, and switching to it will save the project almost $1million, which is no small amount when the project is over budget and 7-figure cost... Read more

Hi all - we have several projects where money from the IRA may be able to get projects farther. I've seen the AIA/USGBC webinar and done some other research as well. Does anyone know if there's a Higher Ed group that is chasing down how and when the money is available and for what exact purposes? Are you planning on using consultants to help... Read more

I am now embarking on the home page design, but before I get started I need input on what you'd like to have there. The style tiles/tidbits provided by Southface includes a home page mockup that's very similar to LEEDuser, which is fine with me, but I don't want to implement it and then find out you want something radically different.

I... Read more

Join your peers and BuildingGreen February 22–26, 2021 for an all you can eat buffet week of networking, problem solving, and connecting with sustainability leaders within your industry and across the Peer Networks! During this week we will create a space for you to offer and receive support, exchange ideas and resources, and become stronger,... Read more

CEUs are available for reading all the building-envelope product guides and primer. Click here to learn more and take the quiz.

Wall assemblies are made up of a number of different materials and systems, and installing each of them requires considerable time and labor and can introduce errors that compromise the building’s weather... Read more

Mark your calendars Sustainable MEP Leaders!!
Here are the details to save the date for the 2020 MEP Summit:

Date: June 9th and 10th, 2020
Location: Stantec Office in Denver, CO
Schedule Outline: Tues. 9th beginning with Lunch at Noon, ending Wed. about 3pm

Gather and learn from your peers! Share your challenges... Read more

Hi Gurus,

We are having a hard time sourcing a baby changing table that is free of anticmicrobial coatings. KoalaKare, the predominate manufacturer, includes Microban in both their plastic and stainless steel product options.  Does anyone have any experience with a durable, ADA compliant and readily available baby changing table free of... Read more

Wondering if anyone has a slide presentation on the Framework for Design Excellence that they would be willing to share (to present to students). Rather than defining my request as lazy I'd like to offer up the qualification of efficiency.