JHA / JSA / AHA builderCurb Mounted Glass Skylight Installation 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 Curb Mounted Glass Skylight Installation JHA
Walk through the job in order. Use these possible hazards, planned controls and checks to start a conversation about your actual work.
011. Release the curb and opening
Possible hazards: An unready curb or uncovered opening can cause collapse or a fall.
Planned controls: Lead checks structural/curb release and identifies opening protection for every stage. Coordinate temporary cover removal with alternative protection and restrict the interior below before the lift.
Check before work: Lead verifies the stage sequence and protected positions.
022. Inspect and rig the unit
Possible hazards: Damage or lifting through an unsuitable part can drop the glazed assembly.
Planned controls: Verify unit weight, condition and the manufacturer’s complete-unit lifting method. Qualified personnel select the approved attachments; do not lift by glazing bars, packaging or handles unless intended for that load.
Check before work: Rigger checks unit and attachment identification against its instructions.
033. Control roof access and delivery
Possible hazards: The load can strike a worker or overload an unready roof area.
Planned controls: Use the lift plan, clear the receiving zone and keep installers at protected positions. Place equipment and materials only in released roof-load locations; stop for wind that prevents unit control.
Check before work: Lift and roof leads confirm route, loading and signals before approach.
044. Seat and secure the unit
Possible hazards: A partly seated unit can slip while workers are beside the opening.
Planned controls: Set onto the specified curb interface and complete the instructed retention sequence with temporary/lifting support maintained. Keep hands out of seating gaps and verify restraint before disconnecting gear.
Check before work: Installation lead checks seating and required fasteners before support transfer.
055. Complete fall and weather protection
Possible hazards: Installed glazing may not support a worker; unfinished flashing can conceal an unsafe edge.
Planned controls: Maintain the designed protection against falling through the skylight and keep workers off the glazing. Coordinate gasket, flashing and roof work without removing required protection; an impact-rated claim needs its actual documented basis.
Check before work: Lead verifies protection and communicates non-walkable status.
066. Hand over the roof and interior
Possible hazards: Unfinished retention or debris can expose roofers and occupants.
Planned controls: Confirm unit installation checks, clear waste and record remaining flashing or inspection actions. Transfer skylight access limits and protection requirements to roofing and building leads.
Check before work: Receiving leads confirm roof and interior release status.
Example scope and starting conditions
A glazing crew will hoist and install a factory-glazed curb-mounted unit on a released low-slope roof curb. The roof opening is protected before arrival and during the support transfer. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- The curb, roof support, unit lifting instructions, fastening and permanent fall-protection arrangement are established for the actual system.
- The roof and interior below have separated receiving and falling-object zones.
- This excludes cutting a new roof opening, roof structural alteration, electrical operators and walking or standing on the glazed unit.
Know when to pause
- Missing curb/roof release or an unprotected installation stage.
- Unit damage, lifting uncertainty or lost wind control.
- Permanent fall-through protection or fastening verification is unresolved.
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.
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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
- How is opening protection maintained while the unit is set?
- Are roof, curb and hoisting loads released for this stage?
- What permanent protection addresses falling through the installed skylight?
Training and qualifications to confirm
- Complete-unit lifting and curb-mount installation instruction with applicable lift roles.
- Roof fall/opening protection, rescue arrangements and non-walkable glazing awareness.
Confirm the actual training evidence for the assigned people. A toolbox talk does not establish competence.
Decisions that change the plan
Does a glazed skylight make the opening safe to walk over?
No. Treat the unit as non-walkable unless the actual system and design establish otherwise, and maintain the selected fall-through protection. This example supplies no load rating for the glazing.
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.
Fall Prevention: Verify the Controls →Rigging: Before the Load Moves →Severe Weather: Know When and Where to Shelter →Skylights: Verify Fall-Through Protection →
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. Release the curb and opening
Hazard: An unready curb or uncovered opening can cause collapse or a fall.
Control: Lead checks structural/curb release and identifies opening protection for every stage. Coordinate temporary cover removal with alternative protection and restrict the interior below before the lift.
Verification: Lead verifies the stage sequence and protected positions.
Why this belongs in the analysis: Removing a cover creates an exposure before the skylight arrives.
2. Inspect and rig the unit
Hazard: Damage or lifting through an unsuitable part can drop the glazed assembly.
Control: Verify unit weight, condition and the manufacturer’s complete-unit lifting method. Qualified personnel select the approved attachments; do not lift by glazing bars, packaging or handles unless intended for that load.
Verification: Rigger checks unit and attachment identification against its instructions.
Why this belongs in the analysis: A factory unit has its own handling limits.
3. Control roof access and delivery
Hazard: The load can strike a worker or overload an unready roof area.
Control: Use the lift plan, clear the receiving zone and keep installers at protected positions. Place equipment and materials only in released roof-load locations; stop for wind that prevents unit control.
Verification: Lift and roof leads confirm route, loading and signals before approach.
Why this belongs in the analysis: Roof delivery is a separate loading event from final installation.
4. Seat and secure the unit
Hazard: A partly seated unit can slip while workers are beside the opening.
Control: Set onto the specified curb interface and complete the instructed retention sequence with temporary/lifting support maintained. Keep hands out of seating gaps and verify restraint before disconnecting gear.
Verification: Installation lead checks seating and required fasteners before support transfer.
Why this belongs in the analysis: A unit resting on the curb is not automatically secured.
5. Complete fall and weather protection
Hazard: Installed glazing may not support a worker; unfinished flashing can conceal an unsafe edge.
Control: Maintain the designed protection against falling through the skylight and keep workers off the glazing. Coordinate gasket, flashing and roof work without removing required protection; an impact-rated claim needs its actual documented basis.
Verification: Lead verifies protection and communicates non-walkable status.
Why this belongs in the analysis: The opening remains a fall exposure unless its selected protection controls it.
6. Hand over the roof and interior
Hazard: Unfinished retention or debris can expose roofers and occupants.
Control: Confirm unit installation checks, clear waste and record remaining flashing or inspection actions. Transfer skylight access limits and protection requirements to roofing and building leads.
Verification: Receiving leads confirm roof and interior release status.
Why this belongs in the analysis: Weather completion and access protection need a clear handover.
Compare control wording
| Needs improvement | More useful for this scenario |
|---|---|
| Work carefully and wear PPE. | Use the lift plan, clear the receiving zone and keep installers at protected positions. Place equipment and materials only in released roof-load locations; stop for wind that prevents unit control. |
| Check that everything is ready. | Lead checks structural/curb release and identifies opening protection for every stage. Coordinate temporary cover removal with alternative protection and restrict the interior below before the lift. |
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
- OSHA 1926.501 Duty to have fall protection
- VELUX Commercial Glass unit technical resources
- OSHA 1926.21 Safety training and education
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. 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 9, 2026
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