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How Hurricanes Create Multiple Types of Home Damage

Last updated October 25, 2026

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The short answer

Wind Damage

High winds from a severe storm can lift shingles, tear siding, and snap tree limbs. Those limbs may crash through windows or punch holes in walls. Even if the roof stays on, wind can peel back flashing or loosen vents, leaving openings for rain to enter later.

After the storm passes, check your roof from the ground using binoculars. Look for missing shingles, lifted flashing, or a shifted chimney cap. If you see daylight through a wall or ceiling, that is a sign of structural damage. Do not enter a room with a sagging ceiling or exposed rafters until a pro inspects it.

  • Broken or boarded windows
  • Missing roof shingles or tiles
  • Torn or lifted siding
  • Downed tree limbs on the house
  • Damaged gutters or downspouts
  • Loose vents or roof flashing

Rain and Leak Damage

Storm rain often comes sideways, driving water under doors, through window frames, and into attic vents. Once water gets inside, it soaks drywall, insulation, and wooden framing. Even a small leak can lead to mold growth within a day or two if the materials stay damp.

You can limit secondary damage by moving furniture away from wet walls and placing buckets under active drips. Turn off the power to rooms where water has reached outlets or appliances. If you have a sump pump or a wet-dry vacuum, use it to remove standing water, but never run electrical equipment in water.

Flooding and Rising Water

Storm surge pushes ocean water inland, while heavy rain can cause rivers and creeks to overflow. Floodwater may enter basements, crawl spaces, and ground-floor living areas. This water is often contaminated with sewage, chemicals, or debris, so treat it as unsafe until tested.

Do not wade through floodwater if you can avoid it. Turn off the main gas valve only if you smell gas or hear a hissing sound, and leave the house immediately. After the flood recedes, document the water line on walls and take photos for your insurance claim. Do not throw away damaged items until you have records.

Flood cleanup usually involves removing soaked drywall, insulation, and flooring up to the water line. Local water damage pros may also treat the interior with antimicrobial solutions. Because floodwater can carry bacteria, wear rubber boots and gloves during cleanup, and see a doctor if you develop any skin or breathing issues.

Mold and Moisture Issues

Any water intrusion can set the stage for mold, which may start growing within 48 hours. Mold can appear on wood, drywall, carpet, and even on personal belongings. It often hides behind baseboards or inside wall cavities, so you might not see it until it spreads.

If you notice a musty smell or see dark spots, act quickly. Remove wet porous items like carpets and cardboard boxes. Use fans and dehumidifiers to dry the area, but only after the power is safe. For large mold growth, a mold professional can test the air and identify the type before cleanup begins.

Prevent future mold by fixing roof leaks and improving ventilation. Humid summers can make indoor moisture problems worse, so keep an eye on attics and crawl spaces after any storm. If mold covers more than a small patch, consider having a professional assess the extent.

Electrical and Safety Hazards

Storms often knock down power lines, and floodwater can create electrical hazards inside your home. If you see frayed wires, sparks, or hear buzzing, turn off the main breaker only if you can do so without touching water. Otherwise, leave the house and call the power company.

Natural gas leaks are another risk after storms. If you smell rotten eggs, leave immediately and call the gas utility from outside. Do not light matches or use light switches until you are sure there is no gas. Also, check for broken glass and sharp metal before walking through damaged rooms.

After the storm, hire an electrician to inspect your panel and wiring before restoring power. Do not use generators indoors, as they produce carbon monoxide. For safety, keep a fire extinguisher handy and know how to shut off your water main. If you live in Burnsville, keep your shutoff valve location written down.

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Frequently asked questions

How long does it take for mold to grow after a severe storm?

Mold can begin growing within 24 to 48 hours after materials get wet. The exact time depends on temperature, humidity, and how porous the surface is. To slow mold, dry out the area quickly with fans and dehumidifiers, and remove wet carpet or drywall as soon as possible.

Can I clean up floodwater myself?

Small amounts of clean rainwater may be manageable, but floodwater is often contaminated. If the water came from outside, treat it as unsafe. Wear rubber boots and gloves, and remove soaked porous materials. For large areas or if you have health concerns, let a professional handle the cleanup.

Should I file an insurance claim for storm damage?

Check your policy to see what types of damage are covered, such as wind, rain, or flooding. Take photos and list all damaged items before cleaning. Policies vary, and your insurer decides what is covered. Submit your claim promptly, but do not start major repairs until you have approval.

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