NV C-17C Drywall Practice Questions - Nevada C-17C Drywall Contractor Examination Exam

Foil may face either way if the joints are taped Foil-back is required on every exterior wall in Nevada Foil faces the framing or substrate; do not use them under tile, as a face layer in a laminated system, laminated to masonry, or on electric radiant ceilings Foil faces the room so it can be painted as a vapor retarder