Roof Inspection Checklist Before California's Rainy Season

Before winter rain, check for visible signs of damage and make sure water can drain away from the roof and home. The California Coastal Commission recommends inspecting roofs and cleaning drains and gutters before severe weather (California Coastal Commission El Niño guidance).

Start with a safe visual check

Do not climb onto a roof to inspect it. From the ground, look for:

1. Missing, cracked, slipped, or visibly damaged roofing materials.
2. Loose or displaced ridge, edge, or valley materials.
3. Debris collecting in roof valleys or behind rooftop equipment.
4. Gutters that sag, overflow, or appear detached.
5. Downspouts that discharge water beside the home’s foundation.
6. Tree limbs or loose objects that could fall onto the roof.
7. Ceiling stains, damp attic areas, or new musty odors after rain.
8. A history of recurring leaks or repairs in the same area.

The Federal Emergency Management Agency also recommends clearing debris from gutters and downspouts when preparing property for future storms (FEMA property preparation).

Ask a professional to check roof details

A contractor can assess areas that are difficult to see safely from the ground, such as flashing and seals around penetrations, valleys, roof-to-wall transitions, and low-slope drainage. Ask the contractor to show you what was observed and separate necessary repairs from optional upgrades.

If the roof appears sound, the right next step may be routine maintenance rather than replacement. If a defect is found, request a written scope that explains what will be repaired and any limits of the work.

Prepare the property, not only the roof

Rainwater needs a clear path away from the building. Clear accessible gutters and downspouts safely, and ask local public works about blocked public storm drains rather than entering or attempting to clear them yourself. Coastal property owners should check whether planned work requires local or coastal permits.

Use this checklist to start a conversation, not to certify that a roof is storm-proof. Read the California El Niño roof preparation guide and request a roof quote if you find a concern.