First, describe the work and worksite
A roofing crew will remove released membrane and insulation from a low-slope commercial roof in controlled sections and lower contained debris through the planned waste route. This fictional learning example records planned controls; it supplies no actual inspections or work authorization.
- The roof investigation releases material hazards, deck condition and permitted work and storage loads.
- Access, edge and opening protection and the area below are established before removal.
- This excludes hazardous-material abatement, structural deck demolition and steep-slope shingle removal.
Questions before work
- What confirms existing-material hazards and deck support?
- How will new openings and weak deck areas be protected immediately?
- Where may debris accumulate and how will it be lowered safely?
Build the analysis one step at a time
What will the worker do? How could someone be harmed? What prevents or reduces that exposure? Who checks the control, and when?
1. Release roof condition and materials
Hazard: Unknown asbestos, fragile deck or inadequate support can cause illness or collapse.
Control: Supervisor confirms material investigation, roof condition and permitted loads before disturbing the system. Hold uncertain areas for the required investigation.
Verification: Compare released work zones with the actual roof and material records.
Why this belongs in the analysis: Removal exposes conditions hidden beneath the covering.
2. Establish access and protection
Hazard: Workers can fall at edges, skylights, openings or access points.
Control: Provide the planned fall and opening protection, safe access and rescue arrangements. Separate the receiving area below and coordinate occupied-building interfaces.
Verification: Supervisor checks the work route and protected boundary before entry.
Why this belongs in the analysis: A skylight is not assumed to be a protective cover.
3. Stage tools and waste containment
Hazard: Poor staging can overload the roof or create trips and dropped objects.
Control: Use permitted load locations, inspect tools and set contained waste collection near the work without blocking exits or drainage.
Verification: Lead checks load distribution and waste routes against the plan.
Why this belongs in the analysis: Waste loading grows as removal progresses.
4. Remove in controlled sections
Hazard: Cutting tools, protrusions and newly exposed weak areas can injure workers.
Control: Follow the released section sequence from protected positions. Stop at unknown deck defects, services or materials and protect new hazards before moving on.
Verification: Lead monitors the exposed deck and records deviations for disposition.
Why this belongs in the analysis: The existing roof investigation must be checked against discoveries.
5. Lower debris by the planned route
Hazard: Falling waste, uncontrolled chutes or overloaded containers can strike people.
Control: Contain waste and use the specified lowering system and controlled receiving area. Never throw debris over an edge or improvise a chute.
Verification: Waste lead checks the lowering setup and receiving separation before each transfer.
Why this belongs in the analysis: The waste route is part of the roof task.
6. Protect exposed areas and hand over
Hazard: Open roof sections, loose debris or weather can expose occupants and the next crew.
Control: Secure material, maintain fall and opening protection and provide the specified temporary weather protection. Communicate deck defects, unfinished sections and load restrictions.
Verification: Supervisor checks closeout and receiving-crew understanding.
Why this belongs in the analysis: End-of-shift protection must address both workers and the building below.
What does a useful control look like?
| Needs improvement | More useful for this scenario |
|---|---|
| Be careful around the equipment. | Use permitted load locations, inspect tools and set contained waste collection near the work without blocking exits or drainage. |
| Check the area before starting. | Supervisor confirms material investigation, roof condition and permitted loads before disturbing the system. Hold uncertain areas for the required investigation. |
Decisions that change the analysis
Does the masonry demolition example cover this removal?
No. It is a ground-floor partition task. Roof tear-off adds fall protection, evolving deck condition, roof load limits, material investigation and debris lowering.
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.
Agree when the crew will pause
- Unknown material, deck damage or concealed service appears.
- Loads, wind, rain or footing change.
- Fall protection or the waste receiving boundary fails.
After a pause, correct the condition, reassess the work, and obtain required authorization before restarting. Keep unresolved actions visible.
Download the worked example and free template
No account or paid membership required. The worked example contains planned controls. The blank template is for your own work; neither includes fabricated inspection results, signatures or approval.
Your editable working copy
Build and download your draft
Start blank or load the learning example. Replace its assumptions with your actual conditions and involve the people doing the work. Your entries stay in this browser tab; download a copy before leaving or refreshing.
1. Describe your work and site
2. Work through each task
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.
3. 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.
Open the downloaded file in a browser, then use Print → Save as PDF for a printable copy.
Training needs to confirm
- Released removal method, roof loading and unexpected-material recognition.
- Fall protection and the actual waste-lowering system.
Confirm applicable qualifications, task instruction and actual training evidence for the people assigned. Related toolbox talks support crew discussion; they do not establish competence.
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 1926.501 Duty to have fall protection
- OSHA 1926.502 Fall protection systems criteria
- OSHA 1926.503 Fall protection training
- OSHA 1926.300 Hand and power tools
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.