Tile Substrate Acceptance Inspection
Verify tile-ready conditions before installation starts, so crews avoid bond failures, lippage, and moisture-related rework. Capture substrate, membrane, and primer checks in one clear acceptance record.
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What's inside this template
Project and Substrate Identification
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Inspection area and room location confirmed
Record the exact room, level, gridline, or area being inspected.
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Substrate type verified
Identify the substrate material being evaluated.
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Substrate is within approved scope for tile installation
Confirm the substrate type and condition match the project specifications and manufacturer requirements.
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Reference documents available on site
Verify that applicable drawings, product data, and installation instructions are available for review.
Surface Flatness and Condition
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Surface flatness meets project tolerance
Verify the substrate meets specified flatness requirements for the tile format and installation method.
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High spots, ridges, and abrupt transitions removed
Check for protrusions, trowel ridges, or transitions that could telegraph through tile.
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Low spots, voids, and surface depressions repaired
Confirm depressions, honeycombing, and voids have been filled or leveled appropriately.
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Surface is clean, dry, and free of contaminants
Inspect for dust, oil, curing compounds, paint, adhesive residue, or other bond-breaking contaminants.
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Cracks, spalls, and damaged areas documented
Identify visible cracks, spalls, delamination, or other defects that may require repair or isolation.
Moisture and Environmental Readiness
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Moisture test results recorded
Enter the moisture test method and measured results, such as RH, MVER, or surface moisture reading.
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Moisture levels are within acceptable limits
Confirm the measured moisture condition is within the limits required by the tile and setting material manufacturer.
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Ambient temperature and humidity are suitable
Verify site conditions are within the recommended range for substrate preparation and tile installation.
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No active water intrusion or visible dampness
Check for leaks, seepage, standing water, or persistent damp areas that could affect adhesion or performance.
Crack-Isolation Membrane
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Crack-isolation membrane required by specification
Confirm whether the project documents or substrate condition require a crack-isolation membrane.
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Membrane installed in required areas
Verify the membrane is present in all specified locations, including cracks, control joints, or high-risk areas.
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Membrane coverage and overlaps are correct
Check that coverage, seams, overlaps, and edge details meet manufacturer requirements.
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Membrane is fully bonded and free of defects
Inspect for bubbles, wrinkles, fishmouths, voids, or debonded areas.
Primer and Final Acceptance
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Primer type matches substrate and setting material
Confirm the primer used is compatible with the substrate and tile installation system.
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Primer applied uniformly and per manufacturer instructions
Check for full, even coverage without puddling, missed areas, or over-application.
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Primer cure time verified before tile installation
Confirm the primer has cured or dried for the required time before setting tile.
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Substrate accepted for tile installation
Final approval that the substrate is ready for tile installation without outstanding deficiencies.
Common use cases
Frequently asked questions
When should this inspection be completed?
Complete it after substrate prep is finished and before any tile setting begins. It helps confirm the surface is ready so issues are caught before materials are installed.
What conditions does this template verify?
It covers substrate identification, flatness, moisture, crack-isolation membrane installation, and primer readiness. These checks help confirm the surface meets project and manufacturer requirements.
Can this template be used for different substrate types?
Yes, it can be adapted for concrete, cement board, gypsum-based underlayments, and other approved tile substrates. Update the acceptance criteria to match the project specification and product instructions.
Who should complete the inspection?
A superintendent, quality manager, tile foreman, or inspector can complete it, depending on your workflow. The key is that the person signing off understands the specification and installation requirements.
Does this template support moisture testing documentation?
Yes, it includes fields for recording moisture test results and environmental conditions. That makes it easier to confirm the substrate is dry enough and stable enough for tile installation.
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