JHA / JSA / AHA builderFully Adhered EPDM Roofing 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 Fully Adhered EPDM Roofing 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 the roof and system
Possible hazards: An unsuitable substrate or overloaded roof can cause installation failure or collapse.
Planned controls: Supervisor confirms support, substrate release and the specified membrane, adhesive and seam system. Hold wet, damaged or unapproved substrate conditions.
Check before work: Compare actual materials and roof conditions with the installation documents.
022. Establish protected access and material zones
Possible hazards: Workers can fall or trip while moving rolls and sheets.
Planned controls: Maintain the planned fall, opening and access protection and stage loads only at released locations. Keep exits and drainage clear.
Check before work: Lead checks access and material zones before delivery to the work area.
033. Prepare chemical application
Possible hazards: Adhesive or primer can expose workers to vapor, skin contact or ignition.
Planned controls: Review each product label and SDS and use the specified ventilation, ignition and protective measures. Address intakes and building occupancy; open only the needed containers.
Check before work: Lead confirms product controls and exposure response before use.
044. Unroll and position membrane
Possible hazards: Large sheets can catch wind, pull workers or obstruct a protected route.
Planned controls: Use a coordinated handling method, limit exposed sheet area to what can be controlled and secure material by the system method. Stop when wind defeats control.
Check before work: Leader checks sheet movement and crew positions continuously.
055. Apply adhesive and complete seams
Possible hazards: Wet adhesive, cutting tools and kneeling work can cause contact injury, slips or strain.
Planned controls: Follow product application and flash-off instructions with protected working positions, safe cutting and workable pacing. Maintain fall protection and keep others out of the wet application area.
Check before work: Lead checks product method, footing and seam readiness against system instructions.
066. Secure products and release access
Possible hazards: Residual product, uncured seams or loose sheets can expose the next shift.
Planned controls: Close and secure chemicals, collect compatible waste and identify cure, access and weather restrictions. Maintain protection until the roof is handed over by the designated authority.
Check before work: Supervisor checks containers, sheet security and actual completion status.
Example scope and starting conditions
A roofing crew will install a specified fully adhered EPDM membrane on a released low-slope roof using the system’s adhesive and seam products. This fictional learning example records planned controls; it supplies no actual inspections or work authorization.
- Substrate support, moisture condition, material loading and installation documents are released.
- The actual adhesive and primer hazards determine ventilation, ignition control and exposure protection.
- This excludes TPO/PVC heat welding, torch roofing and roof insulation installation.
Know when to pause
- System products, substrate or adhesive method changes.
- Wind, vapor control, occupancy or footing changes.
- Roof loading or fall/opening protection is uncertain.
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
Jenkins · Your Safety Concierge
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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
- What confirms substrate readiness and permitted material loading?
- Which adhesive and primer hazards affect roof and building occupants?
- How will large membrane sheets be controlled in the actual wind conditions?
Training and qualifications to confirm
- Actual membrane, adhesive and seam-system instruction.
- Chemical hazards, large-sheet handling and roof fall protection.
Confirm the actual training evidence for the assigned people. A toolbox talk does not establish competence.
Decisions that change the plan
What membrane systems does this example cover?
It covers the specified fully adhered EPDM system. TPO/PVC heat welding, mechanically attached membranes and other methods introduce different equipment and operating conditions and require their own analysis.
What must be recorded before this example is used on a job?
Replace the scenario with the actual work, identify additional hazards with the crew, and record the applicable instructions, responsible people, inspection findings, unresolved actions and required authorization. A planned verification is not an inspection result.
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.
Hazard Communication: Labels, SDS & the Task →Fall Prevention: Verify the Controls →Fire Prevention: Separate Fuel from Ignition →Low-Slope Roofs: Check the Work Zone and Its Limits →
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 the roof and system
Hazard: An unsuitable substrate or overloaded roof can cause installation failure or collapse.
Control: Supervisor confirms support, substrate release and the specified membrane, adhesive and seam system. Hold wet, damaged or unapproved substrate conditions.
Verification: Compare actual materials and roof conditions with the installation documents.
Why this belongs in the analysis: A membrane label does not establish substrate readiness.
2. Establish protected access and material zones
Hazard: Workers can fall or trip while moving rolls and sheets.
Control: Maintain the planned fall, opening and access protection and stage loads only at released locations. Keep exits and drainage clear.
Verification: Lead checks access and material zones before delivery to the work area.
Why this belongs in the analysis: Roof loads and pedestrian routes must remain controlled together.
3. Prepare chemical application
Hazard: Adhesive or primer can expose workers to vapor, skin contact or ignition.
Control: Review each product label and SDS and use the specified ventilation, ignition and protective measures. Address intakes and building occupancy; open only the needed containers.
Verification: Lead confirms product controls and exposure response before use.
Why this belongs in the analysis: Water-based and solvent-based products may require different measures.
4. Unroll and position membrane
Hazard: Large sheets can catch wind, pull workers or obstruct a protected route.
Control: Use a coordinated handling method, limit exposed sheet area to what can be controlled and secure material by the system method. Stop when wind defeats control.
Verification: Leader checks sheet movement and crew positions continuously.
Why this belongs in the analysis: The membrane’s surface area changes the handling exposure.
5. Apply adhesive and complete seams
Hazard: Wet adhesive, cutting tools and kneeling work can cause contact injury, slips or strain.
Control: Follow product application and flash-off instructions with protected working positions, safe cutting and workable pacing. Maintain fall protection and keep others out of the wet application area.
Verification: Lead checks product method, footing and seam readiness against system instructions.
Why this belongs in the analysis: The JHA provides no universal flash-off time.
6. Secure products and release access
Hazard: Residual product, uncured seams or loose sheets can expose the next shift.
Control: Close and secure chemicals, collect compatible waste and identify cure, access and weather restrictions. Maintain protection until the roof is handed over by the designated authority.
Verification: Supervisor checks containers, sheet security and actual completion status.
Why this belongs in the analysis: A finished-looking membrane may still have product restrictions.
Compare control wording
| Needs improvement | More useful for this scenario |
|---|---|
| Be careful around the equipment. | Review each product label and SDS and use the specified ventilation, ignition and protective measures. Address intakes and building occupancy; open only the needed containers. |
| Check the area before starting. | Supervisor confirms support, substrate release and the specified membrane, adhesive and seam system. Hold wet, damaged or unapproved substrate conditions. |
Common questions
Can this be used as a JSA?
Use the Task | Hazard | Control structure if it meets the employer’s format. Adapt the boundaries, controls, verification and records to the actual job.
Does this provide a completed USACE AHA?
No. Use the project’s required AHA process, risk method, supporting fields and acceptance requirements. The existing formwork AHA explains the additional structure.
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 Protecting Roofing Workers
- OSHA 1910.1200 Hazard communication
- OSHA 1926.59 Hazard communication in construction
- OSHA 1926.501 Duty to have fall protection
- OSHA 1926.503 Fall protection training
Original worked example developed for the stated scenario. Primary references support the planning framework; the actual equipment manual, product instructions and project design must supply applicable operating and acceptance 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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