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Name three classifications of vapor retarders and their vapor permeability values (perm ratings).
Q2: Asphalt shingles are generally laid in<br>A)triple coverage
Q11: List various methods of providing attic ventilation.
Q22: The coefficient of friction of a floor
Q24: Using a sketch, describe a cantilevered freestanding
Q29: A commonly used porous sound absorber is<br>A)gypsum
Q44: The flashing around a roof drain is<br>A)curb
Q62: One light- minute is the distance light
Q89: For the same thickness, which of the
Q95: Briefly explain what we mean by the
Q95: The R- value of a concrete tilt-