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

What is a key difference between gypsum plaster and portland cement plaster?

Gypsum plaster is generally for interior use; portland cement plaster is used for exterior and wet or weather-exposed applications Gypsum plaster is always required on exterior walls Portland cement plaster cannot be used on masonry They are chemically identical materials

Correct Answer:

Gypsum plaster is generally for interior use; portland cement plaster is used for exterior and wet or weather-exposed applications

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