Ever wondered if “impact windows” and “hurricane windows” are basically the same? Let’s clear that up! At first glance, both feature laminated glass (layers of glass fused with plastic) to stop shards from flying into your home. But here’s the kicker: hurricane windows tend to be lighter and more flexible, built to bend with fierce gusts and crack safely, whereas impact windows are a step up, thicker, tougher, and designed to shrug off solid debris like flying patio furniture. So yes, they’re related, but definitely not twins!
In this article, we’ll break down these key differences between hurricane windows vs impact windows, how they’re built, how they perform, and which one might be the better choice for protecting your home when the next big storm hits. So, let’s leap in!
On What Basis Are Impact Windows And Hurricane Windows Different?
1. Purpose and Engineering Intent
– Hurricane Windows
- Designed to withstand high wind pressures and reduce the risk of breakage during storms.
- These windows focus primarily on resisting wind forces and preventing rain intrusion.
– Impact Windows
- Specifically engineered to resist both high wind pressure and direct impact from airborne debris.
- Their primary function is to remain intact even when struck by heavy objects like roof tiles or tree limbs, complying with more rigorous building codes.
2. Glass Composition
– Hurricane Windows
Windows for hurricanes are typically constructed with laminated or tempered glass, but with thinner inner films or fewer layers of lamination. These may not always resist large debris strikes.
– Impact Windows
Use heavy-duty laminated glass, usually two or more panes bonded with a polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA) interlayer. This creates a shatter-resistant barrier that holds glass in place after impact.
3. Frame Material and Reinforcement
– Hurricane Windows
Often built with standard-grade aluminum or vinyl frames, reinforced to handle wind loads.
– Impact Windows
Use high-strength, reinforced frames, such as extruded aluminum with steel reinforcements or multi-chambered vinyl.
4. Testing & Certification Requirements
– Hurricane Windows
Must pass wind load tests (ASTM E330) and sometimes water resistance tests. Not always required to pass impact resistance unless located in Wind-Borne Debris Regions (WBDRs).
– Impact Windows
Must pass both:
- Missile impact tests (ASTM E1996/E1886)
- Pressure cycling tests (simulating repeated hurricane gusts), especially for Impact Windows in Florida.
| Fact: Florida Building Code (FBC) and Miami-Dade County have different approval protocols. Best Impact windows must pass both the Large Missile Impact Test (ASTM E1996/E1886) and cyclical pressure testing to qualify. |
5. Cost and Installation
– Hurricane Windows
Generally less expensive due to lighter construction and lower testing standards. Easier to install in moderate-risk areas.
– Impact Windows
Higher cost, reflecting their enhanced materials, thicker glass, reinforced frames, and more rigorous testing. Installation often includes heavy-duty anchoring systems.
| Fact: Impact windows may cost $60–$100 per square foot, while hurricane windows often cost $30–$50 per square foot, depending on rating. |
6. Protection Level
– Hurricane Windows
Offer wind and water resistance but may fail under flying debris impacts. Often, you still require storm shutters for full protection.
– Impact Windows
Provide all-in-one protection against wind, rain, and debris. No need for shutters.
Similarities in Impact Windows and Hurricane Windows
Although they vary in performance levels and certification standards, impact windows and hurricane windows share many core features that contribute to storm protection and building safety. Here’s a breakdown:
1. Use of Laminated Glass Technology
Both types use laminated safety glass, which consists of two or more glass panes bonded with an interlayer (usually Polyvinyl Butyral – PVB, or Ethylene-Vinyl Acetate – EVA). This design helps keep the glass in place even when it cracks, preventing dangerous shards from flying into the home.
2. Energy Efficiency Benefits
The hurricane and impact windows often feature Low-E coatings, inert gas fills (like Argon), and insulated frames, providing thermal performance benefits. These features help reduce heat transfer, lowering HVAC loads and utility bills.
3. Noise Reduction Properties
The multi-layered glass and airtight seals in both window types act as sound barriers, significantly reducing external noise. This is especially useful in coastal areas with high wind noise or urban environments.
4. UV Protection
Both types of windows typically block up to 99% of harmful UV rays, which can prevent fading of furniture, carpets, and artwork.
5. Long-Term Durability
These windows are built with weather-resistant materials (e.g., corrosion-resistant frames, marine-grade sealants) that can handle prolonged exposure to salt air, humidity, and UV radiation. Lifespan for both types is typically 20–30 years with proper maintenance.
6. Insurance Benefits in Some Regions
While insurance discounts vary by state and insurer, both types may qualify for incentives or reductions in homeowners’ insurance premiums if installed as part of a full storm mitigation plan.
Which Type of Window Is Right for You?
Choosing between impact windows and hurricane windows depends on factors like location, building codes, insurance requirements, and long-term cost efficiency. In high-risk coastal areas, impact windows are often preferred due to their ability to meet strict regulations and reduce insurance premiums. Homeowners looking for convenience and permanent protection may also lean toward impact windows despite their higher initial cost. Hurricane windows, which may involve additional components, can be a more affordable option upfront but might require more maintenance or preparation. Ultimately, the best choice hinges on regional weather patterns, budget, and the level of protection and convenience desired.
Need high-quality hurricane or impact windows for your home? Choose The Window Depot for expert installation and top-quality storm protection solutions. Contact us at (813) 901-5555 today for a free estimate and discover why homeowners trust us for durable, reliable window upgrades that stand up to any storm!
