Loose-Fill Insulation

Using Open-Web Trusses as Rafters for Superinsulated Roofs

Posted on March 06,2015 by AlexWilson in cathedral ceiling

Last week I wrote about an innovative foundation insulation material, Foamglas, that we used in our new house in Dummerston. This week I’ll talk about the open-web rafters we’re using to achieve a superinsulated roof. First, a little background. There are several approaches to creating highly insulated roofs.

What Is a Deep Energy Retrofit?

Posted on March 06,2015 by ChrisBriley in Green Architects Lounge

I recently heard that a good blog is like a red party dress: long enough to cover the important parts, but short enough to maintain one's attention. By that measure, the Green Architects' Lounge podcast episodes are like royal wedding gowns with long trains that flow down the aisle. This is great if you like wedding gowns, but ... Because we feel that many short dresses are better than a single long one, we've decided to divide our episodes into smaller, more manageable parts, and release them with greater frequency. (Time to switch metaphors...)

Attic Insulation Upgrades

Posted on March 06,2015 by Mike_Maines in conditioned attic

Two projects my company is currently working on involve a common problem: not enough insulation in the attic. Both homes are old; one dates from 1860, the other from 1705. In both cases we initially recommended insulating the rafter bays. In both cases, however, we were not able to get over homeowner biases against heating “storage spaces,” and instead opted for insulating the attic floor.

Beyond Weatherization: More Stimulus Money Coming

Posted on March 06,2015 by user-756436 in energy efficiency

$3.2 Billion in Block Grants For Efficiency Measures WASHINGTON, D.C — Energy Secretary Steven Chu announced that U.S. cities, counties, states, territories, and Native American tribes will soon receive $3.2 billion of stimulus funding for energy efficiency projects. The funding is separate from the $8 billion in federal stimulus funds flowing to the low-income weatherization program, according to the EERE News, an online newsletter from the Office of Energy Efficiency and Renewable Energy.

The Time for Building Green Homes has Arrived

Posted on March 06,2015 by SamRashkin in energy efficient

_The Link Between Energy Efficiency and Our Country's Best Interests Are Now Well Understood. Here's five reasons why the time is ripe to build and remodel green_ In my last semester of architecture school, I took an elective solar and energy-efficiency course. My life changed immediately and forever. And now, almost 35 years later, it appears the building industry has caught up and it’s time for “green.” Why now? I’ve got five reasons:

Insulate the attic

Posted on March 06,2015 by Peterbilt in Add a floor above

**It's usually very easy to add insulation in the attic.** One of the main reasons to add a lot of insulation in the attic is because access here is generally open, and a thick layer of insulation can be blown in at relatively low cost. Standard payback calculations can be misleading because they don't take the unpredictability of energy costs into account. Rising energy prices demand that builders make the most of every energy improvement possible. The attic also should be air sealed.

Insulate existing walls with blow-in or spray foam insulation

Posted on March 06,2015 by Peterbilt in Kitchen or bath expanded existing space

**Many insulation products can warm up an old house** You can insulate the wall cavities by drilling holes between the studs either from the inside or outside, depending on which surface will be easiest to patch.

Green Basics The Building Envelope
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