JHA / JSA / AHA builderApproved Glass Face Scratch Restoration JHA
A JHA breaks the work into steps, hazards and controls. Use this example to build a draft for your actual job and review it with your crew.
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Step 1 of 4 · Working draft
Your job
Tell Jenkins what you’re planning and where the work will happen. Use the actual job details.
Use the published example’s suggestions when they fit your task, or write your own steps. These are planned controls, not verified worksite conditions.
Describe an observable step, how someone could be harmed, and the control that acts on that hazard. Identify who checks it and what evidence is needed.
Walk through the plan with the people doing the work. Resolve missing controls and agree who checks them. Moving to the next step does not approve the work.
Confirm people, equipment and emergency arrangements
Record changes, checks, and open actions
Walk the work area, review with the crew, and resolve missing controls. Follow the required approval process. This tool does not judge completeness, verify signatures or authorize work.
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Your Approved Glass Face Scratch Restoration JHA
Walk through the job in order. Use these possible hazards, planned controls and checks to start a conversation about your actual work.
011. Accept glass identity and repair limits
Possible hazards: Surface removal on unsuitable glass can damage a coating or weaken an already damaged pane.
Planned controls: Confirm pane construction, uncoated working face, intact edges and damage classification with the responsible specialist. Record the approved process and optical acceptance limits; exclude unknown, cracked or structurally damaged glazing.
Check before work: Technician records specialist release and damage location before selecting an abrasive.
022. Protect the work area and inspect the tool
Possible hazards: A rotating pad, electrical defect or uncontrolled dust can expose occupants and the technician.
Planned controls: Close both work faces and protect adjacent finishes. Inspect the specified polisher, pads, electrical supply and cords, then implement the task exposure assessment, eye protection and dust controls before operating.
Check before work: Lead verifies tool compatibility, safe supply, ventilation and the closed area before the test treatment.
033. Begin controlled face abrasion
Possible hazards: Concentrated heat or an angled pad can crack glass, gouge the face or pull the tool.
Planned controls: Use the supplier’s approved abrasive, speed and movement for this damage class. Keep the pad correctly aligned and moving, monitor temperature using the supplier-approved infrared method and tool feedback, and stop for new cracking, excessive heat or uncontrolled reaction.
Check before work: Technician checks the early treated area and temperature-control method before enlarging the repair.
044. Refine the accepted repair area
Possible hazards: Repeated local grinding can produce optical distortion or unnecessary glass removal.
Planned controls: Refine only within the accepted process limits, using the specified pad sequence and feathering method. Stop and isolate the tool before pad maintenance; reassess if the defect persists beyond the approved removal or optical boundary.
Check before work: Technician records intermediate condition and any decision to stop rather than chase the scratch.
055. Polish and inspect from multiple positions
Possible hazards: Residual haze or tool marks may be concealed by wet compound or one viewing angle.
Planned controls: Use the compatible polishing stage without changing the accepted glass-removal method. Clean as instructed, inspect from the agreed viewing positions and lighting, and check edges and the treated face for new damage or distortion.
Check before work: Specialist compares the dry cleaned pane with the recorded optical and glass-condition criteria.
066. Clean up and record the repair outcome
Possible hazards: Residual abrasive and an overstated repair claim can expose the next user.
Planned controls: Isolate the tool and collect dust, compound and protection by the assessed cleanup method. Record pane identity, treated area, acceptance or replacement recommendation and restrictions before returning access to the owner.
Check before work: Lead verifies clean surroundings and the documented specialist disposition of the treated pane.
Example scope and starting conditions
A trained restoration technician treats one superficial face scratch on an intact, uncoated annealed pane used as nonstructural glazing in a sound fixed ground-level window. The owner and glass specialist have accepted repair suitability and optical limits. The specified abrasive and polishing system removes a controlled surface layer; it does not restore cracked or structurally damaged glass. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- Partial repair coverage: localized face abrasion and polishing on an approved pane; no edge finishing, chipped or cracked glass, coated face, laminated or overhead glazing, structural-glass repair or unresolved safety-glazing acceptance.
- The pane construction and damage are identified, both sides are protected and the actual supplier procedure, tool manual and exposure controls are available.
- A trained specialist may reject the pane or process if repair depth, temperature control, optical quality or glass suitability cannot be established.
Know when to pause
- Pause for unknown glass or coating, edge damage, cracking or unapproved repair depth.
- Stop for rising local temperature, uncontrolled tool pull, ineffective dust control or unacceptable optical change.
- Glass replacement is a separate decision when the pane cannot meet the recorded repair criteria.
After a pause, correct the condition, reassess the work, and obtain required authorization before restarting.
Free example and template
No account required. The worked example contains planned controls. The blank template is for your own work; neither includes fabricated inspection results, signatures or approval.
Worked exampleNeed help? Ask Jenkins
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For managers
Does the team have what it needs to carry out the plan? Give the crew time, equipment and support, and make it clear who will resolve anything that is missing.
Manager checks and supporting resources
Confirm the people doing the work have the time, equipment, information and support to carry out the plan. Agree who checks the controls and who resolves open actions.
Questions to resolve before work
- Who accepts this exact pane and scratch for surface removal rather than replacement?
- How will the technician control abrasive dust, tool reaction and local thermal stress?
- What optical and glass-condition limits stop further abrasion and determine acceptance?
Training and qualifications to confirm
- Demonstrate supplier-approved face restoration, pad maintenance and recognition of thermal stress and optical distortion.
- Train technicians to identify unsuitable glass and to follow the actual exposure assessment, cleanup and specialist acceptance limits.
Confirm the actual training evidence for the assigned people. A toolbox talk does not establish competence.
Decisions that change the plan
Does this repair re-certify the glass?
No. This is bounded cosmetic face restoration after suitability review. It cannot restore strength, remove structural damage or establish a safety-glazing certification; unresolved glass condition leads to specialist disposition or replacement.
What must the crew record for actual use?
Identify the actual equipment and work boundaries, responsible people, applicable criteria, inspection findings and open actions. Resolve changes with affected crews and obtain required project authorization before work.
Keep planning connected
Resources that support this JHA
Additional tools for task planning and safe work. Start with the free resources; explore paid options only when they meet an additional need.
Toolbox talks for the work
Prepare a practical crew discussion.
Hand Tools: Condition, Selection & Line of Fire →Hand Protection: Match the Glove to the Task →Housekeeping Is a Control →
Safety program resources
Review procedures, roles, and requirements.
Browse the existing catalog and confirm the scope and purchase availability of each program.
Browse safety programs →
Paid service · Availability
Task-specific training and qualifications
Explore applicable training and qualification needs.
Task-specific training services are not currently available to book here. Start with the free training-needs lookup; a toolbox talk or online course alone does not establish competence or employer authorization.
Review training needs · Free →People, equipment, emergency arrangements and open actions are recorded in the guided JHA’s Crew review step.
Open the crew review step →For safety professionals
How do we know the planning process and controls are working? Connect what the crew reports with field checks, risk decisions and the evidence behind your system.
Industry context, SIF, control verification and AHA review
Guidance and evidence
Review the method, risk decisions and evidence behind the plan. Use the actual jurisdiction, equipment instructions, employer process and project requirements.
Task-by-task control and verification rationale
1. Accept glass identity and repair limits
Hazard: Surface removal on unsuitable glass can damage a coating or weaken an already damaged pane.
Control: Confirm pane construction, uncoated working face, intact edges and damage classification with the responsible specialist. Record the approved process and optical acceptance limits; exclude unknown, cracked or structurally damaged glazing.
Verification: Technician records specialist release and damage location before selecting an abrasive.
Why this belongs in the analysis: A cosmetic scratch must not be used to dismiss a crack or approve unassessed glass removal.
2. Protect the work area and inspect the tool
Hazard: A rotating pad, electrical defect or uncontrolled dust can expose occupants and the technician.
Control: Close both work faces and protect adjacent finishes. Inspect the specified polisher, pads, electrical supply and cords, then implement the task exposure assessment, eye protection and dust controls before operating.
Verification: Lead verifies tool compatibility, safe supply, ventilation and the closed area before the test treatment.
Why this belongs in the analysis: Glass dust requires an actual exposure assessment; its presence alone does not establish a crystalline-silica composition.
3. Begin controlled face abrasion
Hazard: Concentrated heat or an angled pad can crack glass, gouge the face or pull the tool.
Control: Use the supplier’s approved abrasive, speed and movement for this damage class. Keep the pad correctly aligned and moving, monitor temperature using the supplier-approved infrared method and tool feedback, and stop for new cracking, excessive heat or uncontrolled reaction.
Verification: Technician checks the early treated area and temperature-control method before enlarging the repair.
Why this belongs in the analysis: A stationary hot spot or uneven pressure can change the pane faster than its appearance suggests.
4. Refine the accepted repair area
Hazard: Repeated local grinding can produce optical distortion or unnecessary glass removal.
Control: Refine only within the accepted process limits, using the specified pad sequence and feathering method. Stop and isolate the tool before pad maintenance; reassess if the defect persists beyond the approved removal or optical boundary.
Verification: Technician records intermediate condition and any decision to stop rather than chase the scratch.
Why this belongs in the analysis: Continuing until a mark disappears is not an acceptable substitute for a defined repair limit.
5. Polish and inspect from multiple positions
Hazard: Residual haze or tool marks may be concealed by wet compound or one viewing angle.
Control: Use the compatible polishing stage without changing the accepted glass-removal method. Clean as instructed, inspect from the agreed viewing positions and lighting, and check edges and the treated face for new damage or distortion.
Verification: Specialist compares the dry cleaned pane with the recorded optical and glass-condition criteria.
Why this belongs in the analysis: A glossy surface seen from one angle does not establish acceptable optical quality.
6. Clean up and record the repair outcome
Hazard: Residual abrasive and an overstated repair claim can expose the next user.
Control: Isolate the tool and collect dust, compound and protection by the assessed cleanup method. Record pane identity, treated area, acceptance or replacement recommendation and restrictions before returning access to the owner.
Verification: Lead verifies clean surroundings and the documented specialist disposition of the treated pane.
Why this belongs in the analysis: Cosmetic acceptance supplies no evidence of restored strength or a new safety-glazing certification.
Compare control wording
| Needs improvement | More useful for this scenario |
|---|---|
| Work carefully and wear PPE. | Use the supplier’s approved abrasive, speed and movement for this damage class. Keep the pad correctly aligned and moving, monitor temperature using the supplier-approved infrared method and tool feedback, and stop for new cracking, excessive heat or uncontrolled reaction. |
| Check that everything is ready. | Confirm pane construction, uncoated working face, intact edges and damage classification with the responsible specialist. Record the approved process and optical acceptance limits; exclude unknown, cracked or structurally damaged glazing. |
Common questions
Can this example be used as a JSA?
Adapt its Task | Hazard | Control analysis to the employer’s format and actual conditions. The example is a teaching aid, not evidence that controls were checked.
What changes if the project requires an AHA?
Use the governing AHA format, risk method, supporting records and acceptance process. The published formwork AHA demonstrates that additional structure; changing a JHA title does not supply it.
Are these resources part of a paid course?
This walkthrough, browser draft builder and downloads are free public resources, separate from Academy course enrollment.
References and source note
- GlassRenu Restoration preparation and thermal-stress guidance
- GlassRenu Glass-on-glass scratch restoration process; obtain repair suitability approval
- OSHA 1926.300 Hand and power tools
- OSHA 1926.102 Eye and face protection
Original instructional scenario with planned controls. Primary references support hazard planning. Use actual equipment and product instructions, project design and employer requirements to establish field criteria. This example supplies no inspection findings or work authorization. Use actual equipment instructions and site requirements alongside these references. Reference review: October 9, 2026.
Developed by Todd Jerome Jenkins, MS, CSP · Edition v1.0 · October 13, 2026
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