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NCARB Continuum Education (CE) Practice Exam

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The purpose of damp proofing in a cement plaster coating primarily addresses which concern?
Correct Answer:
Moisture intrusion
Explanation:
Moisture control is the main idea being tested. Damp proofing in a cement plaster coating is aimed at preventing moisture from moving through the wall and into interior spaces. Masonry and plaster are porous, and moisture can travel upward from the ground or laterally through capillary action. A damp-proof barrier—such as a damp-proof course or moisture-resistant coating—acts as a barrier to that water movement, protecting the plaster, finishes, and interior conditions from dampness, staining, mold, and deterioration. While damp-proofing can influence appearance or interact with overall thermal performance, its primary purpose is to block moisture intrusion. It does not address fire resistance or thermal insulation, which are achieved by other design strategies.

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