First, describe the work and worksite
A glazing crew completes an approved two-sided field structural-silicone joint on one already positioned curtain-wall pane. Accepted mechanical dead-load support and designed temporary retention remain in service throughout joint preparation, cure and testing. This fictional learning example describes planned controls; it records no actual inspection or work authorization.
- Partial sealant and curtain-wall coverage: actual structural bond completion, not a weatherseal or pane-setting operation.
- The structural joint, substrates, sealant system and field application have project-specific designer and manufacturer acceptance.
- Four-sided field structural glazing, replacement-glass removal and improvised retention are outside this scenario.
Questions before work
- Who has accepted this specific field structural-bond design and substrate compatibility evidence?
- What protects the pane and keeps stress off the joint while preparation, filling and curing take place?
- Which actual cure and adhesion records are required before designated temporary retention can be removed?
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 structural-bond package
Hazard: A weatherseal product or unreviewed joint can be mistaken for structural glass retention.
Control: Review the accepted two-sided field design, approved sealant and substrates, compatibility evidence and quality plan. Identify the person authorized to accept cure and adhesion records; hold work for missing approval.
Verification: Lead records the design and product revisions and confirms structural use is explicitly accepted.
Why this belongs in the analysis: A sealant label or familiar trade name does not establish suitability for this structural joint.
2. Verify support and protected access
Hazard: Pane movement can overstress uncured material; access changes can expose installers to falls.
Control: Inspect the accepted dead-load support and temporary retention without loosening them. Verify protected access and exclusion below; mark the retention that remains until separately authorized removal.
Verification: Responsible person checks restraint condition and records its continued service before joint work.
Why this belongs in the analysis: Temporary retention is part of the curing condition, not an obstacle to remove for convenience.
3. Prepare the accepted bonding surfaces
Hazard: Contamination compromises adhesion; cleaners and sharp tools can cause chemical or cutting injuries.
Control: Use only the approved substrate-preparation procedure with SDS-based exposure controls. Protect prepared surfaces, distinguish backing from bond faces and stop if a substrate differs from the accepted sample.
Verification: Installer records preparation findings, product identity and any contamination or substrate change.
Why this belongs in the analysis: A neatly cleaned joint may still be incompatible with the actual coating or bonding material.
4. Fill and finish the structural joint
Hazard: Voids, wrong geometry or altered material can reduce the designed bond while appearing finished.
Control: Apply the accepted sealant system and joint detail from stable access, with the required process checks. Preserve specified bond faces and record batch identity and application conditions; do not substitute a weatherseal procedure.
Verification: Assigned quality person checks fill continuity and the actual approved detail before concealment.
Why this belongs in the analysis: Surface appearance alone cannot establish full structural contact inside the joint.
5. Protect cure and verify adhesion
Hazard: Loading an incompletely cured or poorly adhered joint can release the pane.
Control: Keep the required mechanical retention in place and prevent disturbance. Perform and record the project-required cure and adhesion checks using the approved quality procedure; do not infer release from elapsed time alone.
Verification: Authorized reviewer accepts actual test evidence and open actions before any support-release request.
Why this belongs in the analysis: Cure depends on the product and conditions; a universal waiting period is not acceptance evidence.
6. Authorize retention release and handoff
Hazard: Removing the wrong restraint can expose workers and people below to an unsecured pane.
Control: Follow the separately accepted retention-removal sequence only after bond acceptance. Confirm permanent dead-load supports remain as designed, inspect the final condition and transfer all quality records.
Verification: Supervisor records the specific retention released, bond acceptance and final facade status.
Why this belongs in the analysis: Bond acceptance and permission to remove a particular temporary device are connected but separate decisions.
What does a useful control look like?
| Needs improvement | More useful for this scenario |
|---|---|
| Work carefully and wear PPE. | Use only the approved substrate-preparation procedure with SDS-based exposure controls. Protect prepared surfaces, distinguish backing from bond faces and stop if a substrate differs from the accepted sample. |
| Check that everything is ready. | Review the accepted two-sided field design, approved sealant and substrates, compatibility evidence and quality plan. Identify the person authorized to accept cure and adhesion records; hold work for missing approval. |
Decisions that change the analysis
Can the glazing weatherseal example serve this task?
No. The weatherseal example explicitly excludes structural bonding. This task keeps designed mechanical support in service and requires project-specific structural-joint, cure and adhesion acceptance before designated temporary retention is released.
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 unapproved field application, changed substrates, disturbed retention, out-of-criteria application conditions or failed adhesion checks.
- Replan for four-sided field bonding, pane replacement or any changed structural joint design.
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
- Train applicators on the approved field structural-bond procedure, substrate preparation and traceable quality checks.
- Train assigned reviewers to distinguish cure and adhesion acceptance from retention-removal authorization.
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
- Dow Americas silicone glazing technical manual
- OSHA 1910.1200 Hazard communication
- OSHA 1926.501 Duty to have fall protection
- OSHA 1926.21 Safety training and education
- 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.