Insulation

Journal of Poor Homebuilding – Blobs of Cellulose Mold

November 30, 2012
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      This was a first. I’ve never seen dense pack cellulose in a basement. The sills had been netted and packed with cellulose. The netting and been pulled down in some places but the packed cellulose remained. This may not have been a problem if not for the surrounding swamp. The house had [...]

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Is R-Value Dead as a Dodo?

November 28, 2012
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    Once upon a time, house insulation meant an extra sweater and stop your damn complaining. Men were men, women were women, and cats and dogs were cats and dogs, I assume. There were heat retention and heating features built into houses, things like double back plaster walls or central chimneys. But until the [...]

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Sky High R-Value with no Foam – Larsen Truss Walls

July 6, 2012
Larsen truss wall

  Sometimes the homeowner conversations during audits wander into what could be done with a home as opposed to the best ROI or greenest options. It’s difficult to significantly upgrade wall R-value without a major project. Interior solutions involve gutting and re-insulating wall cavities or drilling holes for injection foam which wouldn’t substantially upgrade walls [...]

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Journal of Poor Homebuilding v.8 – The Case of The Missing Insulation

June 30, 2012
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    A classic example of, hey, just not insulating a few wall bays. The house had formerly been uninsulated. The owner hired an low bid insulation contractor who blew in and out in two days. While we can’t speak to whether the cellulose is uniformly dense without tearing out some walls, we can sure [...]

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Substitution Isn’t Just for Teaching – Spray Foam Insulation

June 25, 2012
Spray foam

    Hey, and I get to use the same foam image again. People don’t like abrupt change and in business it’s a formula for chaos. Excelling is hard if you constantly change personnel, products or ways of business. Do one thing superbly. In construction, this means sticking with the framing techniques you know rather [...]

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