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

Hi:

I encourage you to review and sign this letter. 

Notes from BDC follow:

Really appreciate the outpouring of support we've received so far on this letter! Various groups let us know that they would like additional time to review, so we've decided to extend the deadline from June 23 to Thursday, July 14 at 2pm.

As... Read more

Welcome to the quiz portion of The BuildingGreen Guide to Insulation!

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


Hi all,

Just wanted to put a couple of useful webinars on your radars if you haven't heard of them yet:

#1: The Contractor’s Role in Quantifying and Reducing Embodied Carbon: Why, What and How

This webinar will provide an overview of what a contractor's role is towards embodied carbon reductions, and how two General... Read more

Hi all,

Has anyone been able to find alternatives to vinyl window film products? I can find solutions for wall coverings, but am not having much luck when it comes to window films. Any leads or insight would be really helpful!

Thank you!

Amanda

I am diving back into Sefaira for the first time in a while, and the program still seems to be missing the ability to account for automatic daylight dimming in energy savings. Previously I had used an LPD reduction equivalent to emulate the savings automatic dimming would provide. Has anyone done a similar work-around? 

I wanted to make sure that everyone saw this.   Next Friday is a launch webinar for the Commitment.

Introducing the Contractor’s Commitment       November 13th, 2020          3pm - 3:30pm ET (12am - 12:30pm PT)

This webinar will mark the launch of the Contractor’s Commitment as a pilot program for 2021. We’ll give a brief overview... Read more

Hi all,

BG WebDev needs to clarify the Forum comment moderation rules you would like us to put in place.  We do not require moderation for premium users in our LEEDuser forum unless they include a link in their submitted topic or comment. In this case, we hold the publication of the comment in moderation until we can make sure the link... Read more

This summit was pre-approved for  6 GBCI CE hours.

Please complete the survey question to confirm your attendance and receive your CEUs.

By providing your credential numbers in your profile, you will enable us to automatically report these CEUs to the organization. Please first check your profile to be sure your information is... Read more

from the Tortured by Randomness Department:

Y'all ... I was recently reminded (by Bill Reed) about a lovely quote ... and I'm keen to use it in a talk upcoming ... 

Here it is:
Place is a doorway into caring. Love of place unleashes the personal and political will needed to make profound change. It can also unite people... Read more

Blast from the past when 179D first hit the scenes.

Are any of you still using this and if so, has it been easy, successful, worthwhile etc

and Happy New Year !

Hi all,

We have a newly constructed, core/shell project having some hot water issues in the core restrooms.

There is a 0.35 Toto lav installed throughout. The hot water heaters are adjacent on each floor, located in the janitor closets. We did the math, and there could be a gallon of water standing and cooling in the pipe between... Read more

Avoiding Toxic Chemicals in Commercial Building Projects

We’re excited to issue our special report, Spec This, Not That.

In updating the report in 2020, we engaged a respected toxicology and regulatory-compliance firm to review and assist in our revision of the entire publication. This edition reflects the latest science in... Read more

Hello Friends,

With my "AIA 2030 Commitment Working Group" hat on, one of the efforts I have undertaken is a campaign to create a "pull" in the market, rather than (only) the sweaty "push" we all take on every day, trying to build a better world. 

I believe that if we can help clients (building owners) articulate clearer... Read more

Hi all - many of you have been involved in our project to crowdsource the best building performance graphics and make them searchable and freely available. After redesigning the website for functionality and bi-monthly (instead of annual) competitions, we are launching our first of these Challenges: Daylight + Glare. Upload a graphic or three,... 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