The short answer
How Wind Breaks Glass
Wind itself can break a window when gusts create a strong pressure difference between the inside and outside of your home. If the pressure outside drops suddenly, the higher indoor pressure pushes outward against the glass, potentially causing it to bow and crack. This effect is most dangerous when a window is large, like a picture window or sliding glass door.
Flying debris is a more common cause of broken windows. During high winds, branches, roof shingles, or loose outdoor items can be hurled into the glass with enough force to shatter it. Even small stones or hail, which you may see during spring thunderstorms, can strike a window and create cracks that spread over time.
Signs of Wind Damage
After a windstorm, check each window for visible cracks, chips, or gaps around the frame. A hairline crack may not leak immediately, but it weakens the glass and can worsen with the next storm. Look for water stains on the sill or wall below a window, which can indicate that wind-driven rain found a way through a damaged seal.
Also inspect the window frame itself. Strong wind can push frames out of alignment, especially in older homes. If you notice a window that sticks, won't close fully, or has a visible gap between the glass and frame, the wind may have shifted it. Addressing these issues early can prevent water from entering your home during the next heavy rain.
- Cracks that run from the edge of the glass inward
- Small chips or pits from hail or debris impact
- Gaps between the window frame and the wall
- Water stains or dampness on the window sill
- Difficulty opening or closing the window
- Fogging or condensation between double-pane glass
What to Do After a Break
If a window breaks during a storm, your first step is to keep people and pets away from the shattered glass. Use a broom or gloved hands to carefully remove loose shards, then cover the opening with a sturdy board or heavy plastic sheeting. This keeps rain and wind out while you arrange for a permanent fix.
Broken windows let in water that can soak carpets, drywall, and personal belongings. The longer the opening stays uncovered, the more water damage your home can suffer. If water has already entered, you may need to remove soaked materials to prevent mold growth. Acting quickly limits the cleanup needed later.
Preventing Wind Damage
You can reduce the risk of wind breaking your windows with a few practical steps. Trim tree branches that hang near your home, and secure outdoor furniture, grills, and decorations before a storm hits. Consider installing impact-resistant windows or adding storm shutters if you live in an area prone to severe weather.
Regular maintenance matters too. Inspect window seals and caulking each year, and replace any that are cracked or peeling. If you notice a small crack, repair it early before wind pressure makes it worse. For older single-pane windows, upgrading to double-pane or laminated glass offers better protection against both wind and debris.
When to Call a Pro
If a window is broken or the frame is damaged, a window replacement professional can install a new unit that fits properly and seals against wind and rain. They can also assess whether the surrounding wall or sill has hidden water damage from the break. In Rowlett, where spring storms bring strong winds and hail, checking your windows after a storm is a smart habit.
If water has already soaked into your walls, flooring, or drywall, water damage cleanup may be necessary. Local water damage pros can extract standing water, dry out materials, and help prevent mold. They can also identify moisture that isn't visible, such as inside wall cavities, using specialized tools.
- Window replacement for cracked or broken glass
- Emergency water extraction if rain entered your home
- Structural drying to dry out soaked walls and floors
- Moisture mapping to find hidden water damage
- Drywall repair after water has damaged the wall surface
- Water damage inspection to assess the full scope
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Call Now (214) 730-5993Frequently asked questions
Can a small crack in my window get worse with wind?
Yes, a small crack can spread when wind pressure pushes against the glass. Even a tiny chip creates a weak point, and a strong gust can cause the crack to grow across the pane. It's sensible to repair or replace a cracked window before the next severe storm.
Should I board up my windows before a storm?
If a severe storm is forecast, boarding up windows can protect them from flying debris. Use plywood that is at least 5/8 inch thick and secure it to the window frame with screws. This is especially useful for large windows or glass doors that are more vulnerable to wind damage.
What if water leaks in around a closed window during wind?
Water leaking around a closed window usually means the seal or caulking has failed. Wind-driven rain can force water through tiny gaps. Inspect the exterior seal and reapply caulking if needed. If water has already damaged the wall or floor, you may need professional water damage cleanup to dry things out.