All About Hurricane Windows

Hurricane-proof windows, also called stormproof windows or simply hurricane windows, are constructed with impact-resistant glass treated with one or more layers of specially designed film. They are a great option for homes in areas threatened by severe storms. Though they have advantages and disadvantages, and they are significantly more costly than other types of windows, they are usually a worthy investment. Learn more about whether hurricane-proof windows are right for your home.

What Are Hurricane Windows?

Hurricane windows are a type of window made to protect your home during a hurricane and designed to resist high winds and shatter without breaking to keep the wind and water out. While this impact-resistant glass will probably still shatter upon strong impact from flying objects, it generally remains attached to the inner membrane and the window frame. When they break, these windows crack in a fine, spider-web pattern rather than sending out flying shards of glass. Hurricane windows are made of a combination of laminated glass and tempered glass.

Laminated Glass

Laminated glass is constructed by sandwiching a sheet of clear plastic between two panes of glass to strengthen the window. When the glass breaks, the plastic will hold the pieces together.

Tempered Glass

Tempered glass, also called safety glass, is manufactured with a heating process to make the panes much stronger than standard glass. When it is broken, it splinters into tiny pieces instead of large, damaging sharp shards.

How Hurricane Windows Work

There are several glass layering options when it comes to hurricane-resistant, stormproof windows. The different glazing types are identified by the laminate procedure by which the glass panes are joined with the interlayer. A film of PVB (polyvinyl butyral) or EVA (ethylene-vinyl acetate) sandwiched between two layers of glass is the most common type of hurricane-resistant window. PVB or EVA does a very good job of absorbing impact when struck. The layering options will depend on whether you live in a warm or cool region.

Home destruction is often caused by the sudden pressure changes that occur when windows and doors blow out entirely. The increased air pressure entering the home can blow off roofs and cause walls to collapse. Keeping the windows and doors intact and preventing these air pressure changes can save a home from a devastating collapse.

Benefits of Hurricane Windows

No glass is entirely break-proof, but hurricane-resistant, stormproof windows have the enormous advantage of breaking in a manner that cracks without sending out flying shards of glass. Some of the many other benefits of impact-resistant windows are:

• Wind resistance: Windows are made to survive very strong winds without blowing out—up to 200 mph (category 5).
• Impact resistance: Windows are made to break safely. 
• Longevity: These windows last longer than hurricane shutters.
• Noise reduction: The windows offer noise resistance, providing sound insulation. 
• UV protection: The windows protect interiors by blocking UVB rays.
• Home security: Laminated glass windows make it difficult for intruders to break into your home.
• Energy efficiency: Laminated glass provides excellent insulation.
• Insurance savings: This type of window can reduce your homeowner's insurance rates.

Disadvantages of Hurricane Windows

Stormproof windows have their drawbacks, too.

• Costly: They can add several thousand dollars of extra construction costs
• Depends on region: They can be an unnecessary expense in regions where severe storms are unlikely.
• Discoloration: Some types become yellowed over time.
• Visibility: The visibility can be slightly reduced on styles with thick glass.
  
• Aesthetics: There have limited design options.
• Natural light: There may be a decreased amount of natural light entering the home.

Hurricane Windows vs. Impact Windows

Hurricane windows are designed to resist certain wind speeds, while impact windows resist wind and impacts from flying debris because they have more laminated layers. All impact windows are considered hurricane windows, but not all hurricane windows are impact windows due to varying layers. To carry the designation as hurricane-resistant, windows must be able to meet certain requirements for surviving impact from both large and small missiles and the window glazing and framing must remain intact after the impact. For the best protection, opt for an impact-resistant hurricane window. 

How Much Do Hurricane Windows Cost?

The cost of hurricane windows is higher than the cost of new standard windows. A whole home installed with hurricane windows can cost between $3,435 to $17,679 and the national average is $10,548. The price per window varies based on the type of window and framing used, but common examples include fixed windows ($100 to $1,600 per window) and double-hung windows ($450 to $1,700 per window).

Hurricane-resistant windows can increase your overall construction cost, but they offer great protection during the storm season. The investment may well pay for itself by preventing storm damage, and it can also allow you to qualify for discounted homeowners insurance rates.

Who Needs Hurricane Windows?

There are regions of the country that can benefit most from hurricane windows. For example, anyone living in a coastal area but especially those residing in the Southeast, Gulf Coast, and East Coast where severe hurricanes are most likely to happen, could benefit from hurricane windows.

Are Hurricane Windows Worth It?

If you live in a region that's threatened by severe hurricanes, replacing your windows with hurricane windows can be worth it. Having them will not only provide safety and home protection during storms but they also offer cost efficiency in the long run thanks to insurance and energy savings.