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Jan 14, 2026Bathrooms4 min
Bathroom Waterproofing Checklist (So Tile Doesn’t Fail)
Waterproofing is where quality is made. Here’s what a professional system should include before tile goes up.
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Tile is not waterproof. A quality bathroom starts behind the tile—waterproofing, slope, penetrations, and transitions.
Core checklist
Proper substrate, approved waterproofing system, flood test where applicable, and clean detailing around niches/valves.
Avoid common failures
Rushing prep, skipping reinforcement, and mixing incompatible materials.
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