Are hurricane windows made with tempered glass

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Hurricane windows, also known as impact-resistant windows, play a crucial role in protecting homes and buildings against the destructive forces of hurricanes. In regions prone to hurricanes, these windows are highly sought after due to their ability to withstand strong winds and flying debris. One question that often arises regarding hurricane windows is whether they are made with tempered glass. In this article, we will explore this question in detail to understand the composition and construction of hurricane windows.

Understanding Hurricane Windows

Hurricane windows are specially designed and reinforced to resist the impact of hurricane-force winds. They are constructed using multiple layers of glass and a strong interlayer material, typically polyvinyl butyral (PVB), between them. The glass layers are bonded to the interlayer material through a process called lamination. This unique construction makes hurricane windows significantly more resistant to penetration and breakage compared to standard windows.

The Importance of Tempered Glass

Tempered glass is widely used in the construction of windows and doors due to its superior strength and safety features. It is a type of safety glass that undergoes a thermal tempering process, which involves heating the glass and then rapidly cooling it. This process creates a compressive stress on the glass surface, making it four to five times stronger than regular annealed glass. In case of breakage, tempered glass shatters into small, blunt pieces, reducing the risk of severe injuries.

Hurricane Windows and Tempered Glass

While tempered glass is commonly used in various applications, including windows, the use of tempered glass in hurricane windows may vary. Some hurricane windows do utilize tempered glass in their construction, particularly for the outer layer. This enhances the overall strength of the window and provides an additional layer of protection against impacts and debris. However, not all layers of hurricane windows are necessarily made with tempered glass. The inner layers may be made of laminated glass, which still offers significant durability and impact resistance.

Balancing Strength and Functionality

The decision to use tempered glass in hurricane windows depends on several factors, including the desired level of strength, cost-effectiveness, and aesthetic considerations. Incorporating tempered glass into all layers of a hurricane window may enhance its strength, but it could also increase the overall weight and thickness of the window, potentially limiting its size and making it more challenging to operate. Manufacturers carefully balance these factors to provide the best combination of strength, durability, and functionality in their hurricane windows.


In conclusion, hurricane windows are crucial elements in ensuring the safety and security of homes and buildings in hurricane-prone regions. While tempered glass is commonly used in window construction, not all layers of hurricane windows necessarily consist of tempered glass. Incorporating tempered glass in the outer layers of hurricane windows enhances their strength and impact resistance, but additional layers may be made of laminated glass. Manufacturers carefully consider various factors to strike a balance between strength, functionality, and aesthetics in the construction of hurricane windows, providing reliable protection against the destructive forces of hurricanes.


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