AL Lath Plaster Practice Questions - Alabama Lath And Plaster Contractor Examination Exam

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What is the recommended action when concrete masonry units (CMU) scheduled for plaster are extremely dry and absorptive?

Apply plaster over dust without dampening Pre-wet or otherwise condition the masonry as needed so it does not suck moisture out of the plaster too rapidly Seal the CMU with oil before plastering Use only gypsum plaster on exterior CMU

Correct Answer:

Pre-wet or otherwise condition the masonry as needed so it does not suck moisture out of the plaster too rapidly

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