Wind and Winter Storm Damage Repair for Mission District Roofs
San Francisco doesn't see hail, but its winter atmospheric-river storms bring sustained wind and heavy wind-driven rain that finds every weak seam, loose flashing detail, and sun-brittled shingle. A free inspection tells you what's really there.
How Storms Actually Damage a Mission District Roof
Wind is the main driver here, not hail — and it interacts with a roof that's already spent much of the year under more direct sun and heat cycling than roofs on the fog-belt side of the city, which can leave shingles and sealant more brittle heading into the wet season:
- Lifted or torn shingles — sustained gusts on exposed streets can work sun-brittled shingles loose at the edges and ridgelines first.
- Flashing pulled loose — around chimneys and parapet caps, especially where fasteners and sealant have already weakened from UV exposure.
- Flat membrane seam failure — heavy, sustained rain finds any seam or flashing detail that's already aging on a low-slope section.
- Debris impact — falling limbs or blown debris can puncture roofing material outright.
What a Storm Damage Inspection Covers
- Full roof walk after the storm passes, covering pitched and flat sections both.
- Dated photos of any damage found, for your records and your insurance carrier.
- A written assessment — including damage that isn't visible from the ground.
- Emergency tarping if there's active water intrusion, before the permanent repair.
After Storm Damage Is Assessed
Insurance Claims Help
Documentation and adjuster support for wind and storm claims.
Learn more about Insurance Claims HelpStorm Damage Questions
Does San Francisco really get storm damage without hail?
Yes. The city's storm risk comes mostly from winter atmospheric-river systems moving in off the Pacific — sustained wind gusts, heavy wind-driven rain, and occasional downed limbs, rather than hail. Exposed hillside blocks and older flashing details are usually where the damage shows up first.
How do I know if my roof has wind or storm damage?
Signs include lifted or missing shingles, flashing pulled loose around chimneys or parapets, and water stains that appear suddenly after a storm rather than gradually over time. Damage on a flat rooftop section can be even less obvious from the ground, which is why we recommend a free inspection after any significant storm.
Will homeowners insurance cover my storm damage?
Most California homeowner policies cover sudden wind and wind-driven rain damage, subject to your specific policy and deductible. We document damage thoroughly and can meet your adjuster on-site — see our insurance claims page for the full process.
What should I do immediately after storm damage?
If there's active water intrusion, call us right away for emergency tarping. Avoid going on the roof yourself — storm-damaged roofs, especially steep Victorian pitches, can be unstable and slippery.
Just Had a Storm Roll Through?
Free inspection, written report, no pressure. We serve the Mission District and San Francisco.