If you’re unsure whether your windows are impact windows, there are several ways to determine this. Impact windows are specifically designed to withstand the force of flying debris and high winds, often required in hurricane-prone areas. Here’s how you can tell if your windows are impact-rated:
1. Look for a Manufacturer’s Label or Etching
Most impact windows will have an etched label or sticker in one of the corners of the glass. This etching typically includes:
- The manufacturer’s name
- Specific certifications, such as ASTM E1996 or Miami-Dade County approval
- Product testing standards (for wind pressure, missile impact, etc.)
If you find any of these labels, it’s a strong indication that you have impact windows. If the labels are missing, or the windows are older, you may need further inspection.
2. Check the Thickness of the Glass
Impact windows are generally thicker than regular windows. They typically consist of two or more layers of glass bonded with a plastic interlayer (often laminated glass). The thickness of the glass, along with the plastic interlayer, helps it resist shattering. Non-impact windows are often much thinner and consist of only a single layer of glass.
3. Inspect the Frame Material
Impact windows often come with reinforced frames made from materials like aluminum or vinyl, which are designed to hold up against severe winds and impacts. These frames are usually heavier and sturdier compared to standard window frames. If your windows feel lightweight or the frame appears weak, they might not be impact-resistant.
4. Do a Sound Test
Due to their laminated glass, impact windows tend to have superior soundproofing qualities. If your windows significantly reduce outside noise, they might be impact windows. While this isn’t a definitive test, it’s a common characteristic of laminated impact glass.
5. Check with Your Builder or Manufacturer
If your home was built or updated recently in a hurricane-prone area like South Florida, there’s a good chance that the windows installed meet impact standards. If you’re unsure, check with the builder or contact the window manufacturer for details about your window model.
6. Hire a Professional Inspector
If you’re still unsure whether your windows are impact-rated, hiring a professional window inspector or contractor is the best way to confirm. They can accurately assess the materials, strength, and resistance levels of your windows and provide a detailed report.
7. Impact Glass vs. Shutters
Sometimes, homes have hurricane shutters installed instead of impact windows. If you notice shutter fixtures around your windows, your windows may not be impact-resistant, as homeowners with non-impact windows often rely on shutters for hurricane protection.
Conclusion
Identifying whether you have impact windows involves checking for labels or etching, inspecting the thickness of the glass, and verifying the frame strength. If you’re unsure or need professional confirmation, contact your window manufacturer or a licensed inspector. Ensuring your home has impact windows is critical for protecting against hurricanes, especially in areas like Broward County.For those looking to upgrade to certified impact windows, Sofli Windows & Doors provides free consultations and high-quality window solutions designed to keep your home safe and energy-efficient. Call 954-636-1122 or visit sofliwindows.com for more information.