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Safety Cue
Task-specific safety guidance for ordinary work hazards.
Project 13
Grout, Clean, and Seal Tile Flooring
Grout, clean, cure, and where required seal one completed tile floor while preserving every movement and perimeter joint, producing a finished tile surface with fully packed joints, consistent color, and no haze or pinholes.
Field Cue System
These cues appear at the point of work. They identify safety, code, manufacturer, and measurement issues before they become failed grout joints, filled movement joints, or a rejected tile floor.
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Critical Safety Cue
Serious injury, hazardous-material exposure, or major property damage is possible.
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Field Safety Cue
Practical work-area safety: lighting, footing, ventilation, and housekeeping.
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Code Alert
Local requirements vary. Verify permit, inspection, and jurisdictional rules.
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Manufacturer Cue
Follow product-specific instructions for grout mixing, cleaning intervals, sealant, and sealer compatibility.
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Measurement Cue
Reference-point, tolerance, and verification guidance.
Job Overview
This project qualifies you to grout, clean, cure, and where required seal one completed tile floor. The finished work product is one grouted, cleaned, cured, and documented tile floor: joints packed completely to the required depth, excess grout removed without disturbing joint fill, initial and final cleaning completed on the manufacturer's schedule, movement and perimeter joints preserved and treated with flexible sealant where specified, penetrating sealer applied only where required and compatible, and a completed grout and sealing record.
You will confirm the tile mortar has cured, inspect the tile field for defects before grouting, remove excess mortar from joints, select and mix the specified grout, apply and pack grout diagonally across the tile, perform sponge cleaning in the correct sequence, shape and clean joints, correct pinholes and low spots while the material still permits it, remove haze after cure, install flexible sealant at movement and perimeter joints, apply a compatible penetrating sealer only when required, and inspect the finished floor for joint fullness, color consistency, haze, cracking, and preserved movement joints.
This project depends on the tile field completed in Chapter 12 and the backer-board substrate completed in Chapter 11. It closes out the tile-flooring sequence and hands the finished floor to Chapter 15 for transition work and to Chapter 19 for the final quality inspection.
Skills You Will Demonstrate
- FL-073 — Mix grout using the exact water or additive ratio and required slake and remix procedure.
- FL-074 — Pack grout joints completely to the required depth without disturbing tile or movement joints.
- FL-075 — Clean tile surfaces using the correct initial and final sponge-cleaning sequence.
- FL-076 — Shape grout lines consistently across the tile field.
- FL-077 — Apply sealer where required, compatible with the tile and grout.
- FL-078 — Inspect the finished tile floor for joint fullness, color consistency, haze, cracking, pinholes, and preserved movement joints.
Where This Skill Fits
Chapter 12 set the tile field, joint width, movement joints, and mortar coverage that this project's grout must respect. This project's grout joints, movement-joint sealant, and sealer are the last material placed on the tile field before Chapter 15 transitions, Chapter 17 stair finishes on tiled treads, and the Chapter 19 final inspection. A grout joint that traps a movement joint, a haze left on the tile face, or a sealer applied over an unresolved pinhole becomes a permanent defect once the floor is placed into service.
The cleaning discipline established here — controlled sponge cleaning, frequent rinse-water changes, and a defined cleaning interval — is the same discipline reused whenever a later chapter's finish material must be cleaned without disturbing a curing joint.
Scope and Intended Use
This project covers:
- confirming tile mortar cure and inspecting the tile field before grouting
- removing excess mortar from joints to the required depth without damaging tile edges
- selecting, mixing, and applying the specified grout
- packing joints completely while protecting movement and perimeter joints from rigid grout
- performing initial and final sponge cleaning on the manufacturer's schedule
- correcting pinholes and low joints while the material still permits correction
- removing grout haze after cure
- installing flexible sealant at movement and perimeter joints where specified
- applying a compatible penetrating sealer only where required
- inspecting and documenting the finished tile floor
This project does not authorize the learner to:
- set, reset, or realign tile — that work is covered in Chapter 12
- fill a designated movement or perimeter joint with rigid grout under any circumstance
- begin grouting before the tile mortar has cured for the period specified by the mortar manufacturer
- proceed to Chapter 15 transition installation before the grout, sealant, and any required sealer have cured for the specified period
Any tile defect, unresolved movement-joint condition, or mortar-cure deficiency identified before grouting must be corrected under Chapter 12 procedures before this project continues.
Reference Conventions
Establish these references before mixing any grout, and do not change the defined grouting area mid-project.
| Term | Definition |
|---|---|
| Grouting area | The exact tile field completed under Chapter 12 that this project's grout, cleaning, sealant, and sealer apply to |
| Cleaning stage | The specific firmness the grout must reach, as defined by the manufacturer, before initial sponge cleaning may begin |
| Initial cleaning | The first sponge pass performed with minimal water once the grout reaches the specified cleaning stage, used to remove excess grout without pulling it from the joint |
| Final cleaning | The cleaning pass performed after the specified interval to remove remaining residue and haze precursor from the tile face |
| Grout haze | The thin film of dried grout residue remaining on the tile face after cleaning and cure, removed using the approved haze-removal method |
| Movement and perimeter joint | A joint identified in the Chapter 12 layout that must remain free of rigid grout and receive flexible sealant instead |
Grouting Area and Product Record
Before mixing any grout, record the defined grouting area and the specified products directly on the Grout and Sealing Record:
Grouting area (room / rooms): ______ Tile mortar cure date confirmed: ____________
Grout type and color: ______ Sealant product: ______ Sealer product (if required): ______ Date started: ____________ Builder name: ____________
Prerequisites
- A completed and inspected tile field from Chapter 12, with mortar cured for the period specified by the mortar manufacturer
- The approved grout, sealant, and sealer specification, including grout type, color, water or additive ratio, and cure times
- The Chapter 12 movement-joint layout identifying every joint that must remain free of rigid grout
- Basic hand tools, mixing equipment, cleaning supplies, and PPE listed in the Tools, Equipment, Materials, and PPE tables above
- A stop-work decision authority — the learner, supervisor, or licensed professional who will be notified if a stop-work condition is found
Common Field Fundamentals
Every step in this project depends on the tile field completed and inspected under Chapter 12. Grouting, cleaning, and sealing before that mortar has cured, before defects are corrected, or without protecting movement joints produces a floor that fails inspection and requires rework.
Pre-grout inspectionTile field checked for loose pieces, lippage, and contamination before grouting begins
Joint preparationExcess mortar removed to the required depth; movement joints protected
Grout mixingSpecified water or additive ratio, slake, and remix procedure followed exactly
Grout applicationGrout packed diagonally across tile and excess removed with the float
Cleaning sequenceInitial and final sponge cleaning performed on the specified schedule
Correction windowPinholes and low joints filled while the grout still permits correction
Sealant and sealerFlexible sealant at movement joints; penetrating sealer only where required
Final inspectionJoint fullness, color, haze, cracking, and movement joints verified and documented
Grout Selection, Mixing, and Movement-Joint Protection
Use the exact grout type, color, water or additive ratio, slake time, and remix procedure specified for the project. Do not substitute a different grout type or add unapproved water, latex additive, or accelerant. Every movement and perimeter joint identified in the Chapter 12 layout must be protected from rigid grout throughout mixing, application, and cleaning, and treated instead with flexible sealant in a later step of this project.
FL-073 – FL-078
Tile Grouting / Cleaning / Movement-Joint Sealant / Sealer Application
Grout, Clean, and Seal Tile Flooring
A. Finished-Project Specification
Quantity: one completed grouting area, with joints packed to the required depth across the entire tile field, initial and final cleaning completed on schedule, all pinholes and low joints corrected, haze removed, movement and perimeter joints treated with flexible sealant, penetrating sealer applied only where required, and one completed Grout and Sealing Record.
B. Grout and Sealing Schedule
| Item | Target Condition | Verification Method |
|---|---|---|
| Mortar cure confirmation | Cured for the exact period specified by the mortar manufacturer before grouting begins | Written record of cure start and confirmation date |
| Pre-grout tile inspection | No loose pieces, lippage defects, mortar-filled joints, or contamination remaining before grouting | Visual and physical inspection |
| Joint depth | Excess mortar removed to the depth required for full grout fill without damaging tile edges | Visual inspection and direct measurement |
| Grout mix | Water or additive ratio, slake time, and remix procedure match the manufacturer's specification exactly | Direct observation and batch record |
| Joint fill | Every joint packed completely with no voids, pinholes, or low spots after correction | Visual inspection and probe check |
| Cleaning schedule | Initial cleaning performed at the specified cleaning stage; final cleaning performed after the specified interval | Timed observation and written record |
| Movement-joint protection | No rigid grout present in any designated movement or perimeter joint | Visual inspection of every movement joint |
| Sealant and sealer | Flexible sealant installed at every movement and perimeter joint where specified; sealer applied only where required and compatible | Visual inspection and product-compatibility record |
C. Material Takeoff
- Grout: quantity sufficient for the full grouting area based on the manufacturer's coverage rate for the specified joint width and tile size, plus the stated waste allowance.
- Water or additive: quantity matching the exact ratio specified for the grout product.
- Flexible sealant: sufficient cartridges to treat every movement and perimeter joint identified in the Chapter 12 layout.
- Penetrating sealer: quantity sufficient for the grouting area, used only if required by the project specification.
- Documentation: one Grout and Sealing Record per grouting area, plus photographs of joint fill, cleaning, movement-joint treatment, and the finished surface.
D. Acceptance Standards
| Check | Standard |
|---|---|
| Joint fullness | Every joint packed to full depth with no voids, pinholes, or low spots remaining after correction |
| Color consistency | Uniform grout color across the field with no inconsistent water ratio or cleaning-interval streaking |
| Haze | No visible grout haze remaining on the tile face after the approved haze-removal method |
| Cracking | No cracked, crumbling, or separated grout joints present at final inspection |
| Movement joints | Every designated movement and perimeter joint free of rigid grout and treated with the specified flexible sealant |
| Sealer | Sealer, where applied, is even, fully absorbed or cured, and free of residue on the tile face |
| Documentation | Grout and Sealing Record complete with product, batch, water ratio, cleaning, sealant, sealer, and cure entries |
| Procedure | Pre-grout inspection, mixing, application, cleaning, correction, sealant, sealer, and inspection completed independently and in sequence |
E. Pre-Grout Inspection and Joint Preparation
- Confirm tile mortar has cured for the required period. Compare the current date against the mortar cure-start date recorded under Chapter 12 and the exact cure period specified by the mortar manufacturer.
- Inspect tile for loose pieces, lippage defects, mortar in joints, and contamination. Record the location of any condition found before proceeding.
- Remove excess mortar to the required joint depth without damaging tile edges. Use a joint-raking tool or the method specified for the backer-board and tile system to reach the depth required for full grout fill.
- Vacuum joints and tile surfaces. Remove all loose mortar debris and dust from every joint before mixing grout.
- Protect movement joints from rigid grout. Mask or otherwise physically protect every designated movement and perimeter joint identified in the Chapter 12 layout before any grout is mixed.
F. Grout Selection and Mixing
- Select the specified grout type and color. Confirm the product matches the grouting-area record before opening any packaging.
- Mix grout using the exact water or additive ratio. Measure water or additive by volume or weight as specified and mix for the stated time.
- Observe slake and remix requirements. Allow the mixed grout to rest for the specified slake time, then remix for the specified duration before application. Do not add additional water during or after the slake period.
G. Grout Application
- Apply grout diagonally across tile. Hold the float at the angle specified for the product and work across the joints at a diagonal to the tile edges.
- Pack joints completely. Make multiple passes as needed to force grout fully into each joint without leaving voids.
- Remove excess grout with the float. Hold the float nearly vertical and draw it diagonally across the tile face to remove excess material without pulling grout from the joints.
H. Initial and Final Cleaning
- Allow the grout to firm to the specified cleaning stage. Do not begin sponge cleaning before the grout reaches the firmness stated by the manufacturer.
- Perform the initial sponge cleaning with minimal water. Use a damp, well-wrung sponge in light, consistent passes to remove excess grout from the tile face without pulling grout from the joints.
- Shape joints consistently. Use the corner trowel, striking tool, or sponge edge to produce a uniform joint profile across the entire field.
- Change rinse water frequently. Replace both buckets before the rinse water becomes cloudy enough to redeposit grout residue on the tile face.
- Perform final cleaning after the appropriate interval. Wait the exact interval specified by the manufacturer, then perform a final sponge or cloth pass to remove remaining residue.
- Avoid washing pigment or binder from the joints. Use light pressure and minimal water during every cleaning pass, particularly on colored or pigmented grout.
I. Correction, Cure, and Haze Removal
- Fill pinholes and low joints while the material permits correction. Identify every pinhole or low spot during final cleaning and correct it before the grout sets beyond the manufacturer's correction window.
- Allow grout to cure. Protect the floor from traffic, moisture, and disturbance through the exact cure period specified by the manufacturer.
- Remove haze using the approved method. Use only the haze-removal product and method compatible with the tile and grout, applied after the grout has cured sufficiently per the manufacturer's instructions.
J. Movement-Joint Sealant and Tile Sealer
- Install flexible sealant at movement and perimeter joints where specified. Remove the temporary protection installed in Step 5, prepare the joint per the sealant manufacturer's instructions, and tool the sealant to a consistent profile matching the surrounding grout color.
- Apply penetrating sealer only when required and compatible with tile and grout. Confirm compatibility with both the tile and the cured grout before applying, and apply using the applicator, coverage rate, and number of coats specified by the sealer manufacturer.
- Remove excess sealer from tile faces. Wipe away any sealer that pools or streaks on the tile surface before it cures, following the manufacturer's working-time window.
K. Protection, Final Inspection, and Documentation
- Protect the floor through full cure. Restrict traffic and following-trade work for the exact period specified for the grout, sealant, and sealer.
- Inspect joint fullness, color consistency, haze, cracking, pinholes, movement joints, and surface cleanliness. Walk the entire grouting area under normal and raking light and record every deficiency found.
- Document grout, batch, water, cleaning, sealant, sealer, and cure. Complete the Grout and Sealing Record with every product, batch number, mixing ratio, cleaning time, sealant and sealer application, and cure date before closing out the project.
Common Readiness Inspection
Inspect every completed grouting area using the same checks regardless of tile type, room, or grout color.
- Mortar-cure check: confirm grouting did not begin before the mortar's specified cure period elapsed.
- Joint-fill check: confirm every joint is packed to full depth with no voids, pinholes, or low spots remaining.
- Cleaning check: confirm initial and final cleaning were performed on the manufacturer's schedule with no pigment or binder washed from the joints.
- Movement-joint check: confirm no rigid grout is present in any designated movement or perimeter joint and that flexible sealant is installed where specified.
- Haze check: confirm no grout haze remains on the tile face after the approved haze-removal method.
- Sealer check: confirm any applied sealer is compatible, evenly applied, and free of surface residue.
- Documentation check: confirm the Grout and Sealing Record is fully completed.
Complete the Grout and Sealing Record in the Inspection Checklist section below before beginning Project 14.
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Failure Points and Troubleshooting
Cleanup
This project ends with the grouting area protected from traffic and following-trade work through the specified cure period.
- Rinse and store grout floats, sponges, mixing paddles, and buckets before residue cures on the tool
- Dispose of grout, sealant, and sealer waste according to the product's disposal instructions; do not rinse grout residue into a drain not approved for that purpose
- Confirm no protective masking remains over cured movement or perimeter joints
- Store the Grout and Sealing Record with the tile-installation records from Chapter 11 and Chapter 12 for reference by later projects
Field Terms
- Grouting Area
- The exact tile field completed under Chapter 12 that this project's grout, cleaning, sealant, and sealer apply to.
- Cleaning Stage
- The specific firmness the grout must reach, as defined by the manufacturer, before initial sponge cleaning may begin.
- Initial Cleaning
- The first sponge pass performed with minimal water once the grout reaches the specified cleaning stage.
- Final Cleaning
- The cleaning pass performed after the specified interval to remove remaining residue and haze precursor from the tile face.
- Grout Haze
- The thin film of dried grout residue remaining on the tile face after cleaning and cure, removed using the approved haze-removal method.
- Movement Joint
- A joint identified in the Chapter 12 layout that must remain free of rigid grout and receive flexible sealant instead.
- Slake Time
- The specified rest period after initial mixing and before remixing, allowing the grout's chemical components to activate fully.
- Grout and Sealing Record
- The document recording grout product, batch, water ratio, cleaning schedule, sealant, sealer, and cure conditions for the grouting area.
Skill Check
- Why must the tile mortar cure for the manufacturer-specified period before grouting begins?
- What defects must be identified and corrected during the pre-grout inspection, and why must they be addressed before grouting rather than after?
- Why must movement and perimeter joints be physically protected before grout is mixed rather than cleaned out after grouting?
- What happens to grout that is mixed correctly but not remixed after the specified slake time?
- Why must the initial cleaning pass use minimal water, and what defect results from excessive water at this stage?
- Why must rinse water be changed frequently during cleaning?
- What must the learner do if a pinhole or low joint is discovered after the manufacturer's correction window has closed?
- Why must a movement joint receive flexible sealant rather than rigid grout, even if the joint is narrow?
- What must be confirmed about a penetrating sealer before it is applied to a grouted tile floor?
- What information must be recorded on the Grout and Sealing Record before Project 14 may begin?
Competency Rubric
| Competency | Independent Pass Standard | Not Demonstrated | With Assistance | Independently |
|---|---|---|---|---|
| FL-073 | Mixes grout using the exact water or additive ratio and required slake and remix procedure | |||
| FL-074 | Packs grout joints completely to the required depth without disturbing tile or movement joints | |||
| FL-075 | Cleans tile surfaces using the correct initial and final sponge-cleaning sequence and schedule | |||
| FL-076 | Shapes grout lines consistently across the entire tile field | |||
| FL-077 | Applies sealer only where required, compatible with the tile and grout, and free of surface residue | |||
| FL-078 | Inspects the finished tile floor for joint fullness, color consistency, haze, cracking, pinholes, and preserved movement joints, and documents the result |
Mark one column per competency. Only Demonstrated Independently awards the competency; Demonstrated with Assistance authorizes additional supervised practice but does not complete the requirement.
Inspection Checklist — Grout and Sealing Record
| Item | Target Condition | Result | Pass/Fail | Correction (if any) |
|---|---|---|---|---|
| Mortar-cure confirmation | Cured for the required period before grouting began | |||
| Pre-grout inspection | No unaddressed loose pieces, lippage, mortar in joints, or contamination | |||
| Grout mix | Water ratio, slake, and remix procedure matched the specification | |||
| Joint fill | Every joint packed completely with no voids, pinholes, or low spots | |||
| Cleaning schedule | Initial and final cleaning performed on the specified schedule | |||
| Movement-joint protection | No rigid grout present in any designated movement or perimeter joint | |||
| Sealant and sealer | Flexible sealant installed where specified; sealer compatible and free of residue |
Deficiency list and assigned corrections: ____________________________________________
Grout and sealing decision: ______ (Approved/Conditional/Rejected) Date: ____________ Builder name: ____________
Performance Check
With the tile field grouted, cleaned, corrected, cured, and where required sealed, compare the finished floor against the Acceptance Standards table and confirm every joint is fully packed with no voids or pinholes, grout color is consistent across the field, no haze remains on the tile face, no grout joint shows cracking, every designated movement and perimeter joint is free of rigid grout and treated with flexible sealant, any applied sealer is compatible and free of residue, and the Grout and Sealing Record is complete. Complete the record and correct any failed item before beginning Project 14. If an item fails, identify whether the error occurred in pre-grout preparation, mixing, application, cleaning, correction timing, or sealant and sealer application before correcting it and re-running the affected check.
Project Closeout
You have completed the thirteenth project in the residential flooring sequence: grouting, cleaning, and sealing tile flooring. This project required you to confirm mortar cure, inspect the tile field, prepare joints, mix and apply grout, clean the tile face on the correct schedule, correct pinholes and low spots, remove haze, install flexible sealant at movement joints, apply sealer where required, and inspect and document the finished floor (FL-073 through FL-078).
You now have a fully documented, grouted, and sealed tile floor that closes out the tile-flooring sequence begun in Chapter 11. That record carries directly into the next project: installing tack strip, cushion, and stretch-in carpet in a different room.
Retain your Grout and Sealing Record, including every batch, cleaning-schedule, sealant, and sealer entry. You will reference this exact record before Chapter 15 transition work and the Chapter 19 final inspection.