First, describe the work and worksite
A trained test technician measures withdrawal resistance of selected roofing fasteners in an accepted existing roof deck. A project-specific sampling plan and required test-method edition are supplied; local roof exposures are prepared and separately released before each controlled tensile test. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- Partial roof inspection and preparation coverage: fastener/deck field testing and repaired test locations only; no approval of overall deck structural capacity.
- The tester model, current calibration, fasteners, substrate identity, installation method, test sequence and interpretation responsibilities are identified.
- Roof access, falls and service risks are controlled; authorized people prepare and repair any intrusive test openings under the accepted roof plan.
Questions before work
- Who supplies the required sampling plan, method edition and test acceptance or design-use criteria?
- What confirms the selected reaction support and test location will not create a local deck or service hazard?
- Who records every result and verifies each test penetration is repaired before handover?
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. Accept the test plan and roof locations
Hazard: Unrepresentative tests or an unsafe deck location can produce misleading data and expose workers to falls.
Control: Review the actual roof assembly, surveyed conditions and required method with the responsible professional. Mark sample locations and service restrictions; verify access protection and the prepared test-area release.
Verification: Technician records plan revision, substrate identity and the release for each proposed location.
Why this belongs in the analysis: A convenient roof spot may not represent the different deck conditions the design needs to evaluate.
2. Check the tester and staged equipment
Hazard: An unsuitable range, faulty fitting or expired calibration can invalidate readings or release a loaded connection.
Control: Inspect the selected tester, fittings and calibration evidence against its instructions and the required procedure. Choose the accepted reaction arrangement and keep equipment securely staged within the protected work area.
Verification: Technician records tester identity, calibration status, working range and compatible attachments.
Why this belongs in the analysis: A displayed force is useful only when the equipment and arrangement can produce a valid measurement.
3. Install the identified test fastener
Hazard: Unknown services or an incorrect installation method can create injury and unrepresentative embedment.
Control: Verify the released installation point and actual substrate. Install the specified fastener using the agreed construction method and tools; control drilling exposure and record the required embedment or protrusion information.
Verification: Technician checks fastener identity and installation details before attaching the tester.
Why this belongs in the analysis: A test of a differently installed screw cannot be assumed to represent the proposed roof attachment.
4. Connect and align the reaction assembly
Hazard: Off-axis force or an unstable reaction can damage the deck and unexpectedly release loaded parts.
Control: With the tester unloaded, attach the instructed compatible fittings and place its accepted reaction support. Align the intended tensile load path, keep hands out of pinch points and establish clearance around the loaded connection.
Verification: Technician checks alignment and secure support before applying any test force.
Why this belongs in the analysis: The reaction arrangement influences both local roof loading and the direction of withdrawal.
5. Apply and record the controlled test
Hazard: Stored energy, abrupt fastener release or an out-of-range gauge can injure the operator or corrupt results.
Control: Follow the actual prescribed loading rate and stopping criteria from a clear operating position. Monitor support and readings, record all results, actual deck/test conditions and anomalies, then unload fully before touching the attachment.
Verification: Technician records location, units, result and observations and verifies zero applied load before disconnection.
Why this belongs in the analysis: Discarding an inconvenient low reading can conceal the deck condition that prompted the test.
6. Repair locations and deliver the complete record
Hazard: An open test penetration can leak; an unqualified interpretation can overstate what the test establishes.
Control: Have the assigned roofing person restore each exposed or penetrated location to the accepted detail. Deliver the full location map and results to the responsible reviewer and identify anomalies needing further investigation.
Verification: Lead verifies repair evidence and record completeness without declaring the roof structurally sound.
Why this belongs in the analysis: Withdrawal data support attachment decisions; they do not certify the entire roof deck.
What does a useful control look like?
| Needs improvement | More useful for this scenario |
|---|---|
| Work carefully and wear PPE. | Verify the released installation point and actual substrate. Install the specified fastener using the agreed construction method and tools; control drilling exposure and record the required embedment or protrusion information. |
| Check that everything is ready. | Review the actual roof assembly, surveyed conditions and required method with the responsible professional. Mark sample locations and service restrictions; verify access protection and the prepared test-area release. |
Decisions that change the analysis
Can this draft supply a universal pass value?
No. The responsible roof-system professional must supply the applicable method, sampling and design-use criteria. The historical FX-1 reference explains the test concept; verify the edition required for the actual project before testing.
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.
Agree when the crew will pause
- Pause for missing method or sampling criteria, unsafe access, unidentified services or unreleased roof exposures.
- Stop for unsuitable calibration or range, unstable reaction support, off-axis movement or unexpected deck damage.
- Pause when actual deck or test conditions invalidate results under the required method, including applicable freezing and free-water conditions; review anomalies or changed substrate or installation.
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 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
- Verify tester and fastener-installation training, calibrated measurement practice and controlled loading and unloading for the selected equipment.
- Train assigned personnel to record locations and anomalies and to distinguish withdrawal results from deck-capacity or waterproofing acceptance.
Confirm applicable qualifications, task instruction and actual training evidence for the people assigned. Related toolbox talks support toolbox talks; they do not establish competence.
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
- SFS USA Roof fastener pull-test field services
- SPRI FX-1-2006 historical field-test procedure hosted by Sika; verify the project-required edition
- OSHA 1926.501 Duty to have fall protection
- OSHA 1926.21 Safety training and education
- OSHA 1926.300 Hand and power tools
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.