How to Read (Those Darn) Window Performance Stickers

Before you peel that NFRC sticker off the window, check the numbers and ask whether you got the right window for your climate.
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Have you ever found yourself picking a sticker off a building product or material from the store, and wondering, why did they put the sticker here? I have often had this thought with everything from stovepipe to plumbing fittings, but the classic example in the building world is probably windows.

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Net-Zero Does Not Live by Design Alone: The Human Factor

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As more federal buildings target zero energy, leading designers tell us that day-to-day choices make all the difference

Automatically operated shades and a passive transpired solar collector could help bring the NREL research support facility to net-zero energy use--but it takes intentional conservation too. (Photo: Frank Ooms)

If you build it, they will plug. They will plug in drip coffee makers, halogen lamps, personal DVD players, aquariums, space heaters, and maybe even hair dryers.

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Isocyanate-Free Polyurethane Maker Glosses Over Bisphenol-A Content

Can an epoxy-based polyurethane truly be "green" as its name attests?
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A new clear floor coating for the commercial and industrial market is being touted as not containing isocyanates, potentially toxic chemicals used in uncured spray polyurethane foams (SPF), clear furniture and floor coatings, and adhesives such as those found in no-added-formaldehyde wood panel products. But it does contain epoxy, made from bisphenol-A. Can an epoxy-based polyurethane truly be "green" as its name attests?

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Is our approach to green building an "appropriate technology"?

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Almost every technological "solution" has created a new set of problems which it was assumed would be solved by further advances in technology. How is green building different?

[Editor's note: Robert Riversong, a Vermont builder, continues his 10-part series of articles taking design and construction to what he sees as radical or "root" concerns. Enjoy--and please share your thoughts. – Tristan Roberts]

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Getting "Under the Hood" with Energy-Efficient Windows

We expect windows to provide fresh air and cooling breezes at times, but at other times we expect them to be completely airtight and provide good thermal insulation
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It has been a great spring so far for spotting wildlife. A neighbor told me he was shooing a black bear away from his garbage the other day when he saw that he had also frightened off a moose that was also in the neighborhood. Perhaps the moose and bear are rehearsing for a new wildlife buddy movie?

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Making it Right in New Orleans

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A tour of rebuilding in the Ninth Ward of NOLA, with green homes designed by some of the world's leading architects

KieranTimberlake's Special House #9 was one of the first Make It Right homes built.
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International Green Construction Code: Adoptable, Useable, Enforceable*

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The IGCC is designed to implement green building on a massive scale--not to replace LEED.

There are many challenges with mandating daylighting within an international code framework. This illustrates one of them: geography plays a huge role in daylighting, but established climate zones do not overlap with daylight availability, so separate zones had to be established.

It's pretty exciting that local and state governments throughout the U.S.

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Green Building Product Certifications Webinar: Continuing the discussion

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How to tell green from greenwash? Our free recorded webinar is available below, and we're also using this space to answer questions from the live webcast. Enjoy!

We just finished our first webinar on Green Building Product Certifications, and I promised people on the call that I'd create a blog post to continue the discussion – so here it is. To get us started, I've answered a few of the questions that we didn't get to in the webinar Q&A.

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Materials: The Macrobiotics of building natural, healthy and durable

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What used to be called the "bricks and mortar," or the material building blocks, of our homes are the ingredients we use to assemble a structure which we intend (or should) to be sound, healthy and durable. But what, precisely, do we mean by those descriptors?

[Editor's note: Robert Riversong, a Vermont builder, continues his 10-part series of articles taking design and construction to what he sees as radical or "root" concerns. Enjoy--and please share your thoughts. – Tristan Roberts]

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EPA Raises Health Concerns with Spray Foam Insulation

Spray-polyurethane foam (SPF) insulation, growing in popularity, is under scrutiny from EPA. What's a homeowner or builder to do?
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Originally published May 16, 2011. Updated by Paula Melton June 1, 2018.

A friend of mine used to be a long-haul truck driver. At one point he even became a trainer working with new drivers.

Over dinner recently, I asked what was one key lesson that he would want to impart to any new driver. While he was thinking about it, his wife lit up and offered this advice (which I'm sure is not from the company manual): make sure your seatbelt is removed before you begin a hot swap.

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