1. Stop at the safety boundary
Do not chip ice with tools that can damage roofing or work beneath falling ice.
2. Capture the baseline
Take one context photo, one close view and a short note describing location, date, weather, recent water use, equipment state and occupancy.
3. Track the trigger
Snow cover, subfreezing eaves and warming roof areas.
4. Compare, do not assume
Supports this pathway
- Ice buildup is concentrated at eaves
- The leak appears during thaw or sunny cold days
- Attic insulation or air leakage defects are nearby
Weakens this pathway
- The same leak occurs in warm rain
- No snow or ice is present
- The interior mark tracks a plumbing line
5. Repeat only safe checks
- Document roof snow and eave ice from the ground
- Record attic temperature and visible frost safely
- Compare affected and unaffected roof sections
6. Decide the next step
If the pattern is active, expanding, safety-related or requires opening inaccessible construction, stop self-help testing and prepare an evidence-based handoff. A roofer and insulation or air-sealing specialist may both be needed because drainage and heat-loss pathways can interact.
7. Verify the outcome
After any action, repeat the same observation under a comparable trigger. A dry surface immediately after work is not sufficient proof when the original symptom was intermittent.
Observe→Compare triggers→Repair source→Verify outcome
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