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

The page you're looking for is no longer available. There may be several reasons:

We made a mistake when upgrading our website, and the page was lost. Your browser session expired (e.g. you were interrupted while making a purchase and then came back to it hours later). The content is so out-of-date that our editors decided it was... Read more

Welcome to the quiz portion of Certified Wood Update: Comparing SFI to FSC on Key Forestry and Health Issues.

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


 

1. Explain the purpose of forest management standards and what they measure.
2. Differentiate between FSC and SFI... Read more

THIS WEBINAR PURCHASE AND REGISTRATION IS CLOSED.

This webinar took place Thursday, Nov 8th at 2:00 pm Eastern Time (11:00 am Pacific).

Join Brent Ehrlich and Alex Wilson to learn about the ten most exciting green products for 2019. Every year for the past 17 years, BuildingGreen has selected ten green... Read more

Dear Gurus,

At Greenbuild this year I'll be discussing how statistics can lie (in the context of green building claims).  I'm collecting examples of this to prepare.  If any of you know of examples, please send them to me! 

Here are a few of the fun ways statistics might lie that I would be looking for: biased or too-small sample... Read more

Hello Sustainable Community Design Leaders,

The SDL Winter Summit (Jan 23-25, Tempe AZ) has a few spots still open, so we are excited to invite SCDL members to join! This is an opportunity to plug into the conversations happening in the Sustainable Design Leaders group, plus a possible chance to carve out some in-person SCDL time.

... Read more

Jill is a mission-driven leader who loves working with people, solving problems, and strengthening the infrastructure of values-driven organizations that are committed to having a positive impact in the world. 

She brings decades of experience analyzing and understanding the value of operational efficiency across a variety of... Read more

Hi folks,

We’re working on the agenda for what’s shaping up to be a really awesome Summer Summit at a great new venue in Massachusetts. There is an awesome group already registered, and we’d like to fill the remaining slots soon so that we can develop the agenda with your input.

If you’ve been planning to register, please do it... Read more

All - 

We have corporate clients that are starting to request antimicrobials in response to Covid-19. I assume we are not the only ones seeing an increase in these requests. Knowing that the evidence supporting antimicrobials has limited to no efficacy, how are you approaching these conversations? We want to continue to advise based on... Read more

Dear all,

On a major renovation where the wall R-value/U-value needs to be brought up to energy code, specifically a mass wall situation, does anyone have insights on how the situation is best dealt with? On the project in question for me, the continuous insulation might have to be added to the inside surface of the mass wall and there... Read more

We have a client thats going through a TI remodel in a building thats a LEED Core+Shell certified building. One of the questions we are trying to figure out is are there things we need to be doing to not imperil the building's certification. 

I think the answer is that the landlord had to write tenant guidelines at the time of... Read more

Hi folks,

Here's the next Peer Networks private webinar. As usual, it will be recorded and shared in the network if you can't make it in person:

Thursday, July 18, 2pm EDT (11am PDT)

The Center for Active Design (CfAD), operator of the Fitwel Certification System, recently launched Fitwel v2.1, which advances a vision where... Read more

Built Environment Plus (was USGBC MA- aka Meredith Elbaum's band) has organized this awesome sustainability scavenger hunt.

It's fun. It's easy. Anyone can participate from anywhere - it's all app based, and it's a great way to get energized for Earth Day or week! And it's for a good cause, a fundraiser for supportive organization. Have... Read more

Mark your calendars! Wednesday March 9th, 3-4pm ET (12-1pm PT) - Sustainability Leaders State of the Regions.

We’ve seen a lot of momentum building around the potential for regional Sustainability Leaders groups, and we want to learn how best to support this activity. On this call, we’ll have a few currently active regional groups share... Read more

Hey Team,

I'm in a Living Future session where a number of manufacturers are talking about the low uptake they're seeing in their take back programs. Contractor friends... What barriers (if any) are you running into in using take back programs? How might we as architects help increase utilization of these programs?

Aley

Hello Green Gurus,

Some of you may have heard that the Sustainable Construction Leaders Group has been developing the Contractor’s Commitment, a set of sustainability guidelines for contractors to implement in their companies. 

The Contractor’s Commitment will be going live on November 13th with this half-hour webinar introducing... 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