The work plan must account for this condition: the controlling field constraint is that routine moisture is expected behind ceramic tile. Which tile substrate is most suitable?
Correct Answer
B) Select cementitious or specified tile backer
cementitious or specified tile backer best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why This Is the Correct Answer
cementitious or specified tile backer best matches the stated condition. The other choices are real construction options in the same family, but they fit different field conditions.
Why the Other Options Are Wrong
Option A: Select untreated paper-faced gypsum board
Select untreated paper-faced gypsum board puts the item in the wrong financial bucket, timing, base, or comparison for wet tile substrate.
Option C: Select regular gypsum sheathing
Select regular gypsum sheathing puts the item in the wrong financial bucket, timing, base, or comparison for wet tile substrate.
Option D: Select painted gypsum board without backer membrane
Select painted gypsum board without backer membrane puts the item in the wrong financial bucket, timing, base, or comparison for wet tile substrate.
Memory Technique
Wet Tile Substrate ledger for Foreman Selecting: put condition in the right drawer.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Interior finish materials; tile backer and wet-area substrate selection; verify the construction method, material selection, equipment choice, or work sequence that fits the field condition.
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