A warehouse storm plan should connect building maintenance with receiving, storage and safe movement through the facility. Review known roof leaks, loading-area drainage and exposed operating areas together. Assign who reports problems, who can change operations and who coordinates repairs before the next rain event.
The useful question is not simply whether the roof has been inspected. It is whether the facility team knows which unresolved conditions could affect today's work and what action is already arranged.
Start with the roof history and overhead exposure
Collect previous leak locations, roof-service reports and records of recent equipment work. Match interior reports to bay, aisle or column references so the roofing provider can relate symptoms to the building. Give particular attention to open issues above inventory, electrical equipment and occupied work areas without assuming the source sits directly overhead.
Johns Manville's roof-maintenance guidance includes drainage, penetrations, flashings, rooftop equipment and interior signs of moisture. It also calls for qualified roof access and retained maintenance records. Use those categories to organize the inspection request; the actual roof system determines the required work.
Do not send warehouse employees onto a wet roof to locate a leak. Our commercial roof leak detection guide explains how to prepare for a qualified investigation.
Review loading areas as part of the same plan
Record where water has collected near loading positions, doors, pedestrian routes and vehicle approaches. Note whether the concern occurred during intense rain, remained afterward or followed a known blockage. A photograph from a safe location and a marked site plan are more useful than a request that only says “the dock floods.”
| Area | Management question |
|---|---|
| Roof and overhead areas | Which prior leak locations or incomplete repairs require follow-up? |
| Loading positions | Who decides whether a bay remains available when water affects access? |
| Site drainage | What maintenance was completed, and which recurring conditions remain unexplained? |
| Inventory and equipment | Which exposures need an approved protection or relocation plan? |
| People and traffic routes | How will affected areas be restricted and safe alternatives communicated? |
Discuss recurring exterior water with the appropriate provider through commercial drainage maintenance. Do not assume that cleaning one inlet resolves an underground restriction, damaged component or grading issue.
Coordinate with the people running the warehouse
Maintenance access may cross the same routes used for deliveries and material handling. Agree on escorts, work-area separation, delivery restrictions and any operating interruption before a visit. Include the site's safety and operations contacts rather than treating the repair as an isolated contractor task.
OSHA's warehouse guidance identifies hazards involving powered industrial trucks, material handling and slips, trips and falls. Storm planning should fit the facility's existing controls for those activities. An improvised detour around water can create another conflict if vehicle and pedestrian routes are not considered together.
- Keep current site and emergency contacts available to each shift.
- Identify the person authorized to restrict or reopen an affected area.
- Confirm how leak reports reach maintenance when the office is closed.
- Plan inventory protection through the site's approved procedures.
- Give contractors the relevant access and operational limitations in advance.
Turn the dry interval into a documented work window
After rain, distinguish the assessment needed from the repairs already approved. Ask whether the proposed work requires dry conditions, special access or coordination with another trade. Record the plan for temporary protection if permanent work cannot yet proceed.
Request photographs, findings and the remaining action list when a visit ends. If the roof is repaired but affected interior materials still require assessment, keep that work open separately. For Southern California facilities, discuss warehouse storm preparation and Ontario facility inspection needs with the actual site requirements.
Common questions
Can a warehouse stay open during storm repairs?
That depends on the affected area, hazards and approved work scope. Operations and safety decision-makers should agree on restrictions, separation and any interruption with the provider.
Are loading-area water problems always a drain blockage?
No. Report the pattern and request assessment. The scope may need to distinguish maintenance from a damaged drainage component or a broader site condition.
Should all ceiling stains be treated as new storm leaks?
Record whether a stain changed and whether water was observed. Historical photographs help distinguish a new incident from an old mark; appearance alone does not establish cause.
What helps a provider prepare for the visit?
Send the address, bay or aisle references, photographs, incident timing, prior work orders and access restrictions. Identify the local operations contact and approval authority.
Request commercial warehouse storm support or call 909-293-9861. Use the commercial roof rainy-season checklist for the roof-specific preparation record.