SC Non-Structural Renovation Practice Questions - South Carolina Non-Structural Renovation Contractor Examination Exam

A 6-mil polyethylene sheet used on the interior side of a framed wall is which IBC vapor-retarder class?

Class I (0.1 perm or less) Class II (greater than 0.1 perm and less than or equal to 1.0 perm) Class III (greater than 1.0 perm and less than or equal to 10 perms) Not a vapor retarder

Correct Answer:

Class I (0.1 perm or less)

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