Most leaks start at details rather than in the open field of the roof: flashing, penetrations and drains.
The Checklist
- Remove debris; clear drains, scuppers and gutters.
- Look for ponding water hours after rain.
- Check seams for lifting or separation.
- Look for punctures, blisters, cracks and shrinkage.
- Check flashing at walls, curbs and pipes.
- Check rooftop unit panels and condensate lines.
- Inside, look for ceiling stains and damp insulation.
- Take dated photos, and log what you found.
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Roof Access Safety
Roof edges and skylights are fall hazards. Send only trained people, and use the fall protection OSHA requires for the work. Many owners simply have a roofing contractor do the inspection.
Keep the Warranty Valid
- Read the maintenance terms now, rather than after a leak.
- Use accepted contractors and report leaks in writing, within the deadline.
- Ask before adding any new rooftop equipment.