A leaking commercial roof during a storm can create chaos—soaked equipment, unhappy tenants, and thousands in potential damage. But with the right emergency response, you can limit the destruction, reduce downtime, and protect your property from escalating issues. This guide walks you through exactly what to do in a commercial roof leak emergency, especially during extreme weather events common in Canadian cities.
Step 1: Prioritize Safety First
When a roof leak occurs during a storm:
- Evacuate affected areas to avoid injury from slipping or electrical hazards.
- Shut off power in the impacted zone if water is near electrical systems.
- Block off unsafe areas with cones or signage to protect staff, tenants, or customers.
Step 2: Control and Contain the Leak
- Use buckets, tarps, or bins to catch incoming water.
- Place plastic sheeting over electronics, furniture, or inventory.
- If safe to access the ceiling, poke a small hole to release trapped water in bulging drywall to prevent collapse.
- Take photos of the leak location and visible damage immediately.
Step 3: Call a Commercial Roofing Contractor
When contacting a roofer, provide them with key information:
- Address and roof access instructions
- Extent of visible damage and any active leaks
- Type of roof system (flat, metal, TPO, EPDM, etc.)
- Your urgency level (e.g., actively flooding or a minor drip)
Make sure they provide 24/7 emergency service and temporary repair options, especially during storms.
Step 4: Document Everything for Insurance
To make a smooth insurance claim:
- Take photos and videos of the leak and resulting damage
- Record timestamps of when the leak began and when action was taken
- Save receipts for any temporary fixes, tarps, or emergency services
- Note any business interruption or tenant impact
This documentation strengthens your position for property insurance reimbursement under storm damage or water intrusion clauses.
Step 5: Schedule a Follow-Up Inspection
Once the storm passes:
- Request a full commercial roof inspection to determine root cause
- Ask for a written damage report with photos and long-term repair recommendations
- Act quickly—hidden water damage can lead to mold, insulation rot, or structural decay
Step 6: Consider a Preventative Maintenance Program
After the emergency is resolved, prevent the next one:
- Sign up for a bi-annual commercial roof maintenance plan
- Ensure gutters, drains, and flashing are cleared and sealed
- Install water detection sensors in leak-prone zones for early alerts
Conclusion
A roof leak during a storm may feel like a disaster, but quick thinking and the right protocol can make all the difference. If you’re facing a roof leak emergency in a commercial building, prioritize safety, contact a reputable roofing contractor, and document every step. Your insurance company—and your future self—will thank you.