Weatherization and Indoor Air Quality

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Weatherization and Indoor Air Quality

Air sealing is one of the best ways to lower heating-and-cooling bills for many home weatherization programs, and especially so for the federal Weatherization Assistance Program (WAP). Most homes receive blower door-guided air sealing to ...

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Duct Improvement in the Northwest Part I: New Construction and Retrofit

Author: Ted Haskell
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January 01, 1996

In the Northwest, energy losses in forced-air systems average 25%-30% in electrically heated homes, with some homes being significantly worse. [continue reading]

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Duct Improvement in the Northwest Part II: Mobile Homes

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January 01, 1996

Although the thermal shell of the typical mobile home has changed radically over the last 30 years, the air distribution system has not. The walls have gone from 2 x 2 framing with an R-4 fiberglass batt to 2 x 4 or 2 x 6 walls with a high-density R-21 batt (codes vary from state to state). [continue reading]

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Drawbacks Of Powered Attic Ventilators

Author: Ted Rieger
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November 01, 1995

Powered attic ventilators, already suspected of using more energy than they save, can also create excess moisture, structural problems, discomfort, and combustion safety problems for home occupants, according to a recent study. [continue reading]

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Researchers Approach Builders on Duct Location

archive CONTENT
November 01, 1995

It is common practice in California to put ducts outside the conditioned space, in attics and crawlspaces. These duct systems are typically 50%-70% efficient due mostly to air leakage and heat transfer losses, while sealed conditioned-space duct installations have efficiencies over 90%. O [continue reading]

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Air Sealing in Occupied Homes

Author: David Keefe
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November 01, 1995

There are few areas of residential construction that are so commonly misunderstood as air movement within and through houses. [continue reading]

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Oh, How I Wish You Could Have Seen ISH!

Author: Dan Holohan
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November 01, 1995

If you've ever pulled into a gas station in Europe, you know these folks are serious about energy conservation. [continue reading]

Seeking Ideas for Building Envelope Design

Sarah O'Connell

Seeking Ideas for Building Envelope Design

Through its online crowdsourcing platform, JUMP, Oak Ridge National Laboratory is partnering with industry leaders to host technology challenges in ...

So Much Greatness and Gratitude - Notes from Nashville

Amy Beley

So Much Greatness and Gratitude - Notes from Nashville

This past week at HPC in Nashville left me humbled, hopeful, and filled to the brim with gratitude. The biggest ...

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