The most recent blogs at Green Building Advisor

Top 10 Green Building Products for 2011

Posted on October 12, 2011 by Tristan Roberts in Energy Solutions

It is well understood that formations of flying geese ride on a wave of air piloted by the leader of the group. As described in the excellent book “Sensitive Chaos,” by Theodor Schwenk, “The beats of their wings follow the ups and downs of the wave and simply make visible what, as a vibrating aerial form, surrounds and bears them all in the arrow formation.”

Affordable Housing is Leading Green Building

Posted on October 11, 2011 by Carl Seville, GBA Advisor in Green Building Curmudgeon

I recently learned that in Georgia, as well as much of the rest of the country, Low Income Housing Tax Credits (LIHTC), the fuel that drives much of the affordable housing industry, strongly encourages green building certification for projects that obtain these credits. Without this connection to tax credits, we would see many fewer certified green homes and apartments, and these affordable developers would not be the leaders in green building that they are today.

Are Blower-Door Regulations Too Big a Burden?

Posted on October 10, 2011 by Scott Gibson in Q&A Spotlight

Building tight houses is a fundamental step toward energy efficiency, and figuring out how well you’ve done is actually pretty simple.

Air leakage is calculated with a blower-door testTest used to determine a home’s airtightness: a powerful fan is mounted in an exterior door opening and used to pressurize or depressurize the house. By measuring the force needed to maintain a certain pressure difference, a measure of the home’s airtightness can be determined. Operating the blower door also exaggerates air leakage and permits a weatherization contractor to find and seal those leakage areas.. A technician depressurizes the house with a blower sealed into a doorway and measures how much air can pass through the building envelopeExterior components of a house that provide protection from colder (and warmer) outdoor temperatures and precipitation; includes the house foundation, framed exterior walls, roof or ceiling, and insulation, and air sealing materials..

Day Three at GreenBuild: John Picard’s Vision of the Future

Posted on October 8, 2011 by Martin Holladay, GBA Advisor in Musings of an Energy Nerd

Have you ever paid $8 for a movie ticket and still had to sit through commercial messages in the theater before they showed the main feature?

Commercial messages are an established part of the American way of doing business, and we’ve all learned how to sit through them when necessary. The same rules apply at a major conference like GreenBuild as at your local Cineplex. Even if you pay $700 for a ticket, you still have to sit through a few ads.

At national conferences, some speakers are invited because they are experts in their field. Others buy their way on stage.

Report from Day Two of GreenBuild

Posted on October 7, 2011 by Martin Holladay, GBA Advisor in Musings of an Energy Nerd

The crowds at the GreenBuild conference in Toronto are daunting; according to USGBCUnited States Green Building Council (USGBC). Organization devoted to promoting and certifying green buildings. USGBC created the LEED rating systems., there are 23,000 attendees this year. As an indefatigable journalist, however, I've managed to survive the crush to board the escalators and have patiently waited my turn in the long lines that form to use the rest room.

If you're interested in new products, check out my photos from the trade-show floor.

If you want to get a flavor of some of the information provided in the presentations, I've culled a few memorable quotes for you to enjoy.

Blog Review: MinnePHit House

Posted on October 6, 2011 by Scott Gibson in Green Building Blog

Paul and Desirée have three young daughters, two dogs, a flock of chickens and a 1935 house in Minneapolis that needs a ton of work.

Although the house was extensively updated in the 1990s, the 1400-sq.-ft. structure still has a host of problems: an under-insulated attic, single-pane windows, thin exterior walls, an awkward layout, aging interior finishes, and an air handler located in the unconditioned attic.

GreenBuild Conference Opens in Toronto

Posted on October 5, 2011 by Martin Holladay, GBA Advisor in Musings of an Energy Nerd

The GreenBuild conference in Toronto, Ontario, opened its gates on October 5, 2011. This is the first time that the U.S. Green Building Council has held its annual conference outside of the United States.

Blower Door Testers Wanted — Scientists and Engineers Preferred

Posted on October 5, 2011 by Allison A. Bailes III, PhD, GBA Advisor in Building Science

OK, the title here may be a little extreme, but if you've taken a look at the new chapter on performance testing and scope of work in the HERS Standards, you know what I'm talking about. RESNET just adopted this as the new chapter 8 in August of this year, and it goes into effect on 3 January 2012.

Girl Eats Bug

Posted on October 5, 2011 by Tristan Roberts in Energy Solutions

The Large Blue Butterfly, found in Europe, lays its eggs on a marsh gentian leaf. Its larva (a caterpillar) hatches and falls to the ground and emits a scent that smells to certain species of ant just like its own larvae. The ants carry the caterpillar back to their nest, where they not only care for it as one of their own, but as one of their own that is going to turn into a queen. Meanwhile, the caterpillar is eating the actual ant larvae and growing large.

Utilities Offer Programs That Can Benefit Your Customers

Posted on October 4, 2011 by Michael Strong, LEED Associate, CGP in Green Building Blog

In Texas, as in many other states, local electric utilities offer homeowners a variety of free services to help lower energy bills.

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