Attic Ladder Insulator
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Uploader Comments (butlerjamesd)
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how much is it? Your website is not helpful . What is the R-value?
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The R-valve is not calculatable because the Attic Ladder Insulator uses the dead space it creates above the attic ladder to create part of its insulating valve. This is a proto type, I'm interested in someone helping me market it.
butlerjamesd 4 months ago