How to Protect Your Home From High Winds and Storms: A Practical Guide

High winds damage homes in a predictable sequence: an opening fails first, wind pressure builds up inside, and the roof or walls go next. Preparedness guidance from the U.S. National Weather Service (NWS), the National Oceanic and Atmospheric Administration (NOAA), Utah State University (USU) Extension and the Federal Alliance for Safe Homes (FLASH) points to the same priority order for homeowners: garage door, then windows and doors, then roof, then yard.

Why the Garage Door Comes First

Both the NWS and FLASH identify the garage door as the single most vulnerable part of a house in a windstorm. The NWS describes it as the most vulnerable opening in the home, one that must be able to withstand the wind. FLASH cites an analysis by the U.S. National Institute of Standards and Technology (NIST) showing that homes whose garage doors stay intact are more likely to keep their roofs and walls as well, with that correlation holding at wind speeds up to 135 mph — roughly a low-end Category 4 hurricane or a strong EF-2 tornado. If a garage door buckles, wind pours into the structure and pushes up on the roof and out on the walls, which is why a single failed door can trigger damage across the whole house.

FLASH recommends doors with a thicker metal gauge, reinforced mounting brackets and hinges, horizontal struts to prevent buckling, and side-locking mechanisms that homeowners engage before a storm. According to FLASH, wind-rated doors are helpful, but impact-resistant doors offer better protection, and single-car doors generally outperform wider two-car doors because they have less surface area for wind to push against.

A Step-by-Step Home-Hardening Checklist

1. Trim tree branches near the house and power lines well before storm season, as advised by the NWS, NOAA and USU Extension.
2. Inspect and reinforce the garage door with bracing, reinforced tracks or a wind/impact-rated replacement, and engage any side locks before a storm.
3. Have plywood, steel or aluminum panels, permanent storm shutters, or impact-rated windows and doors ready for every window and glazed opening, per NOAA and NWS guidance.
4. Check that the roof is in good repair and meets local hurricane building code; the NWS notes that many roof-strengthening retrofits are less costly and less time-consuming than homeowners expect.
5. Secure or bring indoors anything in the yard that could become airborne, and move vehicles to a sheltered location, as recommended by the NWS.
6. Identify an interior room away from exterior walls and windows to use as a safe room, following USU Extension's guidance.
7. Assemble an emergency kit with at least three days of food and water and charged backup batteries for phones and radios, per USU Extension.
8. Review insurance coverage well ahead of storm season: NOAA points out that standard homeowners and renters policies exclude flood damage and that separate flood insurance carries a 30-day waiting period, so it should be purchased before June 1 in the Atlantic and Central Pacific or May 15 in the Eastern Pacific.

How Strong Do Winds Have to Be to Cause Damage?

The NWS says isolated wind damage is already possible once winds are sustained at 40-50 mph, with widespread, significant damage occurring at higher sustained speeds. Thunderstorm-driven straight-line winds, the agency adds, can exceed 100 mph — comparable to a strong hurricane or tornado — which is why the same hardening steps used for hurricanes also apply to severe thunderstorms and other windstorms.

During and After High Winds

Once high winds begin, USU Extension advises moving immediately to the pre-identified interior safe room and staying away from exterior walls and windows, since flying debris and shattering glass are especially dangerous. People who live in mobile or manufactured homes are told to arrange alternate, sturdier shelter in advance, as these structures are described as especially hazardous in strong windstorms. If going outside is unavoidable during the storm, USU Extension recommends staying far from trees, power lines and roads.

After winds die down, USU Extension's guidance calls for continued caution around downed power lines, monitoring official updates, and following safe cleanup and generator-use practices before resuming normal activity.