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

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When substrate irregularities exceed the ability of thin base coats to true the wall, what is the proper preparation approach?

Ignore hollows and hope the finish coat hides them Correct framing/substrate defects or use appropriate leveling methods before or as part of base-coat work Only increase sand content of the finish coat Omit control joints so the plaster can bridge gaps

Correct Answer:

Correct framing/substrate defects or use appropriate leveling methods before or as part of base-coat work

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