Do you need tempered glass in replacement windows? Learn where safety glass is typically required, how tempered glass compares to laminated glass, and how Quad Cities experts Darin Wilson and JR Girskis help homeowners choose the right glass for safety, energy efficiency and value.
Do I Need Tempered Glass in Certain Window Locations?
If you're replacing windows in your home, you may notice that your estimate includes tempered glass for certain openings. Many homeowners wonder whether it's actually necessary or simply an expensive upgrade.
In many cases, tempered safety glass isn't optional—it's required by modern building codes in specific hazardous locations. Other times, you may have the option of choosing laminated glass for additional security, noise reduction or storm protection. Understanding the difference helps you make an informed decision without paying for upgrades that don't provide meaningful benefits for your home.
What Is Tempered Glass?
Tempered glass is safety glass that has been heat-treated to increase its strength. When broken, it shatters into thousands of small, rounded pieces instead of large, sharp shards, significantly reducing the risk of serious injury.
Because of these safety characteristics, tempered glass is required in many locations where accidental human impact is more likely.
Where Is Tempered Glass Typically Required?
Local building codes generally require safety glazing in hazardous locations. While requirements should always be verified with the applicable building code, tempered glass is commonly required in locations such as:
- Windows located near entry doors.
- Glass installed in or adjacent to swinging doors.
- Bathroom windows located near tubs, showers or hot tubs.
- Large windows installed close to the floor.
- Glass surrounding stairways and landings.
- Windows located near walking surfaces where accidental impact is more likely.
During your consultation, ask your contractor which windows require safety glazing by code and which are optional upgrades.
What About Laminated Glass?
Laminated glass serves a different purpose. Rather than shattering into small pieces, laminated glass consists of two layers of glass bonded together with a durable plastic interlayer.
Even if the glass breaks, the fragments typically remain adhered to the interlayer, making laminated glass popular for security, storm resistance and sound reduction.
Tempered Glass
- Safety glazing
- Breaks into small pieces
- Required in many code locations
- Designed to reduce injury
Laminated Glass
- Improved security
- Helps reduce outside noise
- Additional storm protection
- Glass remains bonded together when broken
Should You Upgrade to Laminated Glass?
Laminated glass can be an excellent investment—but only when it solves a real problem.
Laminated glass may make sense if:
- Your home is located near a busy road and outside noise is a concern.
- You want additional security against forced entry.
- You live in an area that experiences frequent severe weather.
- You want additional protection from flying debris.
On the other hand, if none of these conditions apply, laminated glass may not provide enough additional benefit to justify the extra investment.
What Does FGIA (Formerly AAMA) Recommend?
The American Architectural Manufacturers Association (AAMA), now part of the Fenestration and Glazing Industry Alliance (FGIA), supports nationally recognized performance standards for residential windows, doors and skylights.
Safety glazing products are tested to recognized North American standards to verify impact resistance, durability and long-term performance before they are certified for use in hazardous locations.
FGIA also emphasizes that proper installation is just as important as selecting the correct glazing. Even the highest-performing safety glass depends on a properly installed window system to deliver its intended performance.
Professional Installation Protects Your Investment
Replacement windows are a complete system—not simply a piece of glass.
During installation, experienced crews carefully inspect the opening, verify code requirements, level and secure the new window, install perimeter insulation and complete interior and exterior air sealing. Proper installation helps maximize both safety and energy efficiency.
Darin Wilson's Expert Advice
"We don't believe in selling upgrades homeowners don't need. If tempered glass is required by code, we'll explain why. If laminated glass offers a real benefit because of traffic noise, security or your home's location, we'll discuss that too. Our job is helping homeowners invest where it truly adds value—not simply increasing the quote."
— Darin Wilson, Vice President, Suburban Construction
Trusted Advice from Darin Wilson and JR Girskis
For decades, Darin Wilson and JR Girskis have helped homeowners throughout Davenport, Bettendorf, Moline, Rock Island, East Moline, Eldridge, Le Claire and surrounding communities understand the differences between standard insulated glass, tempered safety glass and laminated security glass.
Every consultation includes a discussion about building code requirements, ENERGY STAR® certification, NFRC performance ratings, Low-E glass packages and installation methods so homeowners understand exactly what they're purchasing—and why.
Rather than recommending every available upgrade, they focus on matching each homeowner with the right combination of safety, energy efficiency and long-term value.
Energy Efficiency Still Comes First
Whether your replacement windows use standard insulated glass, tempered glass or laminated glass, homeowners should continue evaluating the complete window system.
✔ ENERGY STAR® Certification
Choose products designed for Northern climate performance.
✔ NFRC Performance Ratings
Compare U-Factor and Solar Heat Gain Coefficient for energy efficiency.
✔ Professional Installation
Proper insulation and air sealing maximize comfort and long-term durability.
✔ Excellent Return on Investment
Choose safety and performance upgrades that solve real problems while improving comfort, resale value and peace of mind.
Industry Perspective
"Safety glazing products are evaluated to recognized performance standards to help ensure impact resistance and appropriate use in hazardous locations."
— Fenestration & Glazing Industry Alliance (FGIA), formerly the American Architectural Manufacturers Association (AAMA)
Bottom Line
Tempered glass is often required by building code in specific hazardous locations because it helps reduce the risk of injury if broken. Laminated glass is typically an optional upgrade that can provide additional security, noise reduction and storm protection. The smartest approach is to ask which windows require safety glazing by code and whether optional upgrades address a genuine need. Working with experienced professionals like Darin Wilson and JR Girskis ensures your replacement windows provide the right balance of safety, energy efficiency, durability and long-term value.
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