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Reader’s digest New Do It
Yourself Manual,
“All vinyl becomes brittle in extreme cold. It expands and
softens in heat.”
Popular Science, June 1995,
“Although vinyl is more energy efficient than aluminum, vinyl, can warp and
fade.”
US Dept. of Energy-National
Renewable Energy Lab, October 1994,
“Vinyl material tested warped,
shrunk and twisted. Vinyl cannot withstand extreme temperature fluctuations.”
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