ACT Mud Walls Practice Questions - ACT Mortar (Mud) Walls Exam

TCNA Method W221 is selected when the existing wall substrate is which of the following?

A flat, plumb, structurally sound surface ready for direct-bond tile Severely out-of-plumb or out-of-flat and requires a thicker mortar bed for correction An exterior glazed brick veneer in a freeze-thaw climate A waterproof shower receptor pre-formed in resin

Correct Answer:

Severely out-of-plumb or out-of-flat and requires a thicker mortar bed for correction

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