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What Wind Speeds Damage a House?

Last updated October 31, 2026

The short answer

How Wind Speed Is Measured

The National Weather Service uses the Beaufort scale and anemometers to classify wind speeds. A 'high wind warning' is issued for sustained speeds of 40 mph or gusts to 58 mph. This level can cause minor property damage. A 'hurricane force wind warning' is for speeds over 74 mph, which pose a severe threat to buildings and trees.

Understanding these categories helps you interpret weather alerts. When a high wind warning is issued, you should secure outdoor furniture and check for loose items on your roof. More severe warnings mean you should prepare for potential structural damage. These alerts are your signal to take protective action for your home and family's safety.

Common Types of Wind Damage

High winds often start by damaging the exterior envelope of your house. Lifted or missing shingles are a frequent first sign, which can quickly lead to roof leaks. Siding can be ripped off, exposing the wall sheathing to rain. Broken windows or damaged doors allow wind and water to enter directly, causing interior damage.

Falling trees or large limbs are a major hazard during windstorms. A tree can punch a hole in your roof or crush a wall. This type of impact damage frequently leads to significant structural compromise and immediate water intrusion. Even if a tree doesn't fall, wind-blown debris can break windows or damage siding.

When Water Damage Follows Wind

Wind damage often creates openings for water to enter your home. A compromised roof or broken window allows rain to pour in, soaking insulation, drywall, and flooring. This water can spread quickly to other rooms and into wall cavities. The resulting moisture creates an ideal environment for mold growth within 24 to 48 hours.

Acting quickly is crucial to prevent secondary damage. If your home is breached, try to safely cover openings with tarps to stop more water from entering. Move furniture and belongings away from wet areas. Then, contact local water damage pros to assess the situation and begin drying out the structure to protect your property.

  • Roof leaks from missing shingles or lifted flashing.
  • Water intrusion through broken windows or damaged doors.
  • Soaked insulation and drywall in walls and ceilings.
  • Wet carpet, padding, and wooden subfloors.
  • Pooled water in basements or crawlspaces from driven rain.
  • Hidden moisture inside wall cavities promoting mold.

Steps to Take After a Storm

Once it is safe to go outside, carefully inspect your property for visible damage. Look for missing shingles, damaged siding, broken windows, and fallen tree limbs on or near your house. Document all damage with photos or video for your insurance records. Avoid touching downed power lines and be cautious of unstable structures.

If you find damage that lets water in, your priority is to stop further intrusion. Cover holes in the roof or windows with plywood or heavy-duty tarps if you can do so safely. Then, contact local water damage pros for a thorough inspection. They can identify all affected areas and recommend the necessary restoration steps.

Preparing Your Home for High Winds

Regular maintenance is your best defense against wind damage. Inspect your roof annually for loose, cracked, or missing shingles and have them repaired. Trim tree branches that hang over your house or near power lines. Ensure your garage door is reinforced, as a failed garage door can lead to catastrophic roof failure.

Secure all outdoor items that could become projectiles, including patio furniture, garbage cans, and grills. Install storm shutters or have pre-cut plywood ready for your windows. Know how to shut off your home's utilities. If you live in Oklahoma City, keeping a list of emergency contacts, including a trusted restoration pro, is a prudent part of your plan.

  • Inspect and maintain your roof and siding annually.
  • Trim trees and remove dead branches regularly.
  • Reinforce garage doors and entry doors.
  • Secure or store outdoor furniture and decorations.
  • Install storm shutters or have window coverings ready.
  • Know your utility shut-off locations and procedures.

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Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.

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Frequently asked questions

Can wind damage cause mold in my house?

Yes, if wind breaks windows or damages the roof, rain can enter. Wet drywall, insulation, and carpet can start growing mold within one to two days. It is important to dry the area quickly. The pros can assess and remediate mold issues to protect your home's air quality.

Will my homeowners insurance cover wind damage?

Most standard policies cover sudden wind damage, but specific terms vary. Damage from subsequent water intrusion is often covered if the wind created an opening. Policies vary, and your insurer decides what is covered. Review your policy and document all damage thoroughly with photos before making any permanent repairs.

How soon should I get help after wind damage?

You should seek help as soon as it is safe. Water from rain can cause extensive secondary damage very quickly. The longer wet materials sit, the greater the risk of mold and structural decay. Contacting a professional for an inspection promptly can help minimize the overall restoration cost and effort.

Call Now (405) 565-9833