Which of the following is a correct statement?
a. Flexible duct vapor barriers are typically made from rubberized canvas.
b. Flexible duct can be compressed so that a long section can fit into a much smaller box.
c. Most flexible duct has an R-value of at least R-24.
d. Flexible duct is an excellent choice for use near ultraviolet light accessories.
b
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A. True B. False
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