Cement backer board seams in a shower are left untreated before waterproofing and tile. What should be completed?
Correct Answer
D) Seam treatment.
Wet-area tile backer seams should be treated as required before waterproofing and tile cover the substrate.
Why This Is the Correct Answer
Wet-area tile backer seams should be treated as required before waterproofing and tile cover the substrate.
Why the Other Options Are Wrong
Option A: Proceed with the finish work where cement backer board seams in a shower are left untreated before waterproofing and tile, and postpone the product or backing correction.
Proceed with the finish work where cement backer board seams in a shower are left untreated before waterproofing and tile, and postpone the product or backing correction. addresses a neighboring field issue, but not the condition or method control required for tile wet-area detailing.
Option B: Treat the item as a color or trim preference where cement backer board seams in a shower are left untreated before waterproofing and tile, instead of correcting the performance item beneath the visible finish.
Treat the item as a color or trim preference where cement backer board seams in a shower are left untreated before waterproofing and tile, instead of correcting the performance item beneath the visible finish. addresses a neighboring field issue, but not the condition or method control required for tile wet-area detailing.
Option C: Accept the installer's shortcut where cement backer board seams in a shower are left untreated before waterproofing and tile, without verifying the required access or movement detail.
Accept the installer's shortcut where cement backer board seams in a shower are left untreated before waterproofing and tile, without verifying the required access or movement detail. addresses a neighboring field issue, but not the condition or method control required for tile wet-area detailing.
Memory Technique
Tile Wet-Area Detailing method for Checking Shower: condition first, tool second.
Reference Hint
Study anchor (closed-book): memorize Tile wet-area detailing from California Residential Code, California Code of Regulations Title 24. / Title 24 California Residential Code wet-area finish and drainage concepts; know the rule or calculation trigger without relying on exam-room lookup.
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