The terms hurricane windows and impact windows are often used interchangeably because they serve similar purposes: protecting homes from strong winds and flying debris during hurricanes.
However, there are subtle differences in design, certification, and marketing. Here’s a breakdown:
Hurricane Windows
- Definition: A general term for windows that withstand high winds and flying debris during a hurricane.
- Features:
- It may include impact-resistant glass or reinforced framing.
- Often paired with additional protection like hurricane shutters to meet local building codes.
- They can be less expensive than certified impact windows if they rely on supplementary systems for debris resistance.
- Use: Designed primarily for wind resistance. It may not always provide sufficient protection against debris impact without additional reinforcement.
Impact Windows
- Definition: A specialized type of window designed and tested to resist high wind pressures and debris impacts without additional coverings.
- Features:
- Incorporates laminated glass, consisting of two layers of glass with an interlayer of PVB (polyvinyl butyral) or SGP (SentryGlas Plus) for added strength.
- Heavy-duty frames are made from materials like aluminum, vinyl, or steel to hold the glass securely.
- Tested and certified to meet specific impact resistance standards, such as those set by the Miami-Dade County Building Code or the ASTM standards.
- Use: Provides all-in-one protection, so high-end impact windows eliminate the need for hurricane shutters or other coverings.
Key Differences Between Impact and Hurricane Windows
| Feature | Hurricane Windows | Impact Windows |
|---|---|---|
| Debris Protection | It may require shutters for full protection | Built-in debris resistance |
| Glass Type | It can vary; not always laminated | Continuously laminated, often multiple layers |
| Frame Strength | It may be reinforced but not always heavy-duty | Specifically designed for impact loads |
| Certification | May not meet impact standards | Certified for debris and wind loads |
| Cost | Generally less expensive | Higher due to advanced materials and testing |
Should You Choose Hurricane Or Impact Windows in Florida?
In Florida, the choice between the best hurricane windows and impact windows largely depends on your location, local building codes, and specific needs. Here’s what to consider:
1. Florida’s Building Codes
Florida has strict building codes, especially in areas prone to hurricanes, such as the High-Velocity Hurricane Zone (HVHZ), which includes Miami-Dade and Broward counties.
- Impact windows meet stringent testing standards for high wind pressures and debris impacts.
- Hurricane windows may suffice in non-HVHZ areas, but you must combine them with hurricane shutters to meet code requirements.
2. Protection Against Hurricanes
- Impact Windows: Provide all-in-one protection against both high winds and flying debris. This is critical in Florida, where debris from hurricanes poses a significant risk to homes and lives.
- Hurricane Windows: Typically require additional protective measures, like shutters, to ensure debris resistance, which can add complexity during storm preparations.
3. Convenience and Aesthetics
- Impact Windows: There is no need for additional shutters or coverings, making them a more convenient and aesthetically pleasing option. Once installed, they’re always ready to protect.
- Hurricane Windows: This may require deploying shutters or other protection, which can be cumbersome, especially during a time-sensitive storm warning.
4. Insurance Benefits
House Bill 293 was passed in Florida, so many insurance companies can offer premium discounts for homes with impact-rated windows because they reduce the risk of storm-related damage. However, it is less likely with standard hurricane windows unless they are paired with shutters.
5. Long-Term Cost
- Impact Windows: There are higher upfront costs if you buy from top impact window manufacturers. But you may save money over time through insurance discounts, reduced storm preparation costs, and better protection.
- Hurricane Windows: Lower initial cost but more expensive in the long run due to the need for shutters and potential replacement after a storm.
6. Your Location in Florida
- High-Risk Areas (e.g., South Florida, coastal regions): Most experts recommend impact windows, as they provide the highest level of protection and are often required by local codes.
- Lower-Risk Areas (e.g., Central or Northern Florida): If debris risk is lower, hurricane windows with shutters may be a more affordable option.
Which Window System Should You Choose?
- Impact Window installations near Clearwater are ideal for comprehensive, standalone protection in hurricane-prone areas. They provide peace of mind without the need for additional coverings.
- Hurricane Windows may be sufficient in areas with less stringent building codes or where budget constraints require supplemental protection like shutters.
When deciding, consider local building codes, the likelihood of debris impact in your area, and your budget.
