A shower wall is tiled directly over standard drywall in a wet area without an approved wet-area backing or waterproofing system. What is the issue?
Correct Answer
C) The backing/waterproofing assembly is unsuitable as described.
Ordinary exposed drywall with tile alone is not an appropriate shower waterproofing assembly. Some approved systems use drywall behind a bonded membrane; that differs from the unprotected assembly described. Source: https://www.schluter.com/schluter-us/en_US/faq/shower-system-kerdi-over-drywall-tiled-shower
Why This Is the Correct Answer
Ordinary exposed drywall with tile alone is not an appropriate shower waterproofing assembly. Some approved systems use drywall behind a bonded membrane; that differs from the unprotected assembly described. Source: https://www.schluter.com/schluter-us/en_US/faq/shower-system-kerdi-over-drywall-tiled-shower
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