NV C-4E Drywall Practice Questions - Nevada C-4E Drywall Contractor Examination Exam

Per IBC 2018 Section 2509.3, water-resistant gypsum backing board shall not be used in which location?

Over a vapor retarder in a shower or bathtub compartment As a dry closet wall that will be painted As a bedroom ceiling framed 16 inches on center As a Level 4 living-room wall

Correct Answer:

Over a vapor retarder in a shower or bathtub compartment

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