A small windshield crack might not seem like a big deal, but when water gets in, it can quickly become a much bigger problem! Rain, snow, and even humidity can seep into cracks and chips, causing them to spread. If left untreated, water damage can weaken your windshield’s structure, make repairs less effective, and even put your safety at risk. Understanding how water affects a damaged windshield will help you take action before a simple fix turns into a costly replacement.
What Happens When Water Gets Into a Cracked Windshield?
Cracks and Chips Can Spread
Water can easily work its way into even the smallest chip. In cold weather, it freezes and expands, putting pressure on the glass and causing cracks to spread. Even in warmer weather, moisture can weaken the glass as temperatures fluctuate. The longer you wait, the greater the risk of the crack spreading across your windshield. A minor chip can turn into a full windshield replacement before you know it!
Your Windshield May Lose Strength
A modern windshield is more than just a sheet of glass—it’s a multi-layered structure designed for safety. Between two glass layers is a thin plastic layer called polyvinyl butyral (PVB), which helps prevent shattering on impact. If water seeps into deep cracks, it can weaken this protective layer. Over time, moisture may break down the PVB, reducing the windshield’s strength and increasing the risk of injury in an accident.
Repairs Might Not Work as Well
If you’ve ever had a chip or crack repaired, you know that technicians inject a special resin into the damaged area to seal and reinforce it. But when moisture is trapped inside a crack, it can interfere with this process. The resin may not bond properly, making the repair less effective.
That’s why it’s best to fix windshield damage as soon as possible—before rain or humidity has a chance to get inside and cause more problems.
How to Protect a Damaged Windshield from Water
To prevent water from worsening windshield damage, follow these simple steps:
Cover the Crack – If you can’t get it repaired right away, place a piece of clear packing tape over the crack to help keep moisture out.
Park in a Covered Area – Whenever possible, keep your car in a garage or under shelter to protect it from rain and extreme temperature changes.
Avoid Sudden Temperature Changes – Blasting the defroster or using hot water to melt ice can cause the glass to expand and contract too quickly, making cracks worse.
Schedule a Repair Quickly – The sooner you fix the damage, the less chance water has to seep in and cause further issues. Many insurance policies cover windshield repairs, sometimes at no cost to you—so don’t delay!
If It Breaks or Cracks… Call Jack’s!
Water can turn a small windshield crack into a much bigger problem. If you need a repair or replacement, Jack’s Glass is here to help! We’re available 24/7—call or email us today to find out how we can assist you.
Jack’s Glass has been a trusted name in glass repair, replacement, and design for 80 years. We specialize in auto glass repair and replacement, custom shower solutions, tub enclosures, and a wide range of residential glass services. We also offer custom glasswork for businesses and proudly serve Cincinnati and Northern Kentucky from our locations in Elsmere and Covington. Don’t wait—let us help you today!
