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Cork Insulation on Our Farmhouse

by LiveModern Webmaster last modified Mar 21, 2013 01:00 AM
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by Alex Wilson last modified Mar 19, 2013

Author name:  Alex Wilson Blog Category:  Energy Solutions GreenSpec Insights Why we chose cork exterior insulation for our net-zero-energy house Installing cork insulation on our farmhouse. Click to enlarge. Photo Credit: Alex Wilson Among the innovative—some might say weird—products we’re trying out at our Dummerston, Vermont farmhouse, none is more unusual than the expanded cork insulation we’re currently installing as a layer of exterior rigid insulation. As I mentioned in a blog last summer , cork insulation has a great story behind it. Cork? You’ve got to be kidding! I first learned about expanded cork insulation years ago when exploring the attic of a 1920s-era home in Brattleboro. I found a rigid boardstock insulation comprised of cork with plaster on one side. It was made by Armstrong , which was then a company making cork products but is today one of the world’s leading manufacturers of flooring and ceiling products. It turns out that the product was invented by accident in 1893 in New York City by a boat builder, John T. Smith. The cork granules he used to fill life preservers became clogged in a large tin funnel, and that slipped into the coals of a fire used to steam oak staves. When the owner of the shop discovered the tin funnel the next morning he expected the cork to be burned up, but instead it had expanded to fill the form and solidified into a solid block. read more




 

 


 

 

 
 
 

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