The most recent blogs at Green Building Advisor

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.

Perfect Balance Makes the Cut

Posted on October 3, 2011 by Peter Yost in Green Communities

In a past blog (“Return to Sender – HVAC Return Pathway Options”), a posted comment by GBAdvisor Mike Guertin introduced a new option for returning delivered air from rooms with closed doors, the Tamarack Technologies Perfect Balance. Perfect Balance is a grille and filter system installed into a cutout at the bottom of interior doors.

University of Maryland Wins the Solar Decathlon

Posted on October 3, 2011 by Richard Defendorf in 2011 Solar Decathlon

The second time was the charm for University of Maryland. The school took second place in Solar Decathlon 2007 and parlayed its experience into a very solid first-place finish in the 2011 edition, which wound down on Sunday in Washington, D.C.’s West Potomac Park after almost two weeks of site preparation and installation work, visitors, and evaluations in the competition’s 10 contest categories.

Does R-Value Trump Thermal Mass?

Posted on October 3, 2011 by Scott Gibson in Q&A Spotlight

Jesse Lizer’s plans for a new house in Climate Zone 6 call for a 60-foot long walkout basement wall on the north side. The three below-grade foundation walls will be built with insulated concrete forms (ICFs) with an R-valueMeasure of resistance to heat flow; the higher the R-value, the lower the heat loss. The inverse of U-factor. of roughly R-25.

How to Install Rigid Foam Sheathing

Posted on September 30, 2011 by Martin Holladay, GBA Advisor in Musings of an Energy Nerd

UPDATED on July 20, 2015

What’s the best way to install foam insulation on the outside of a wall?

Although GBAGreenBuildingAdvisor.com has published many articles and videos on the topic, we continue to receive frequent questions from readers asking how to install rigid foam sheathingMaterial, usually plywood or oriented strand board (OSB), but sometimes wooden boards, installed on the exterior of wall studs, rafters, or roof trusses; siding or roofing installed on the sheathing—sometimes over strapping to create a rainscreen. on exterior walls — so it’s time to provide a primer on the topic.

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