Key Takeaways
- Impact-resistant glass is made with a strong polymer layer between two panes of glass, providing enhanced safety and security.
- Spandrel glass is used to conceal structural elements of buildings and can be clear, tinted, or tempered.
- Impact-resistant glass offers superior protection against extreme weather and flying debris.
- Spandrel glass is often used for its aesthetic appeal and ability to hide unsightly building components.
- At Panda Windows & Doors we’re always ready to help you make the right choice for your needs.
What is Impact Resistant Glass?
Impact glass, or hurricane glass, is specifically designed to withstand heavy impacts and extreme weather. It’s commonly used in areas prone to hurricanes and strong storms.
Composition and Structure
Impact-resistant glass is made by layering a strong polymer, usually polyvinyl butyral (PVB), between two panes of glass. The polymer holds the glass together even if it shatters, preventing dangerous shards from causing injury.
The glass is usually held with heavy-duty frames, further enhancing its strength and security. By combining the glass and frame, impact glass windows remain intact and functional, even after an impact.
Manufacturing Process
Manufacturing impact-resistant glass involves several steps:
- Glass panes are cut to the desired size;
- The PVB layer is sandwiched between the glass panes - and heated to bond the composite;
- The glass is framed in a heavy-duty frame to complete the window unit.
Founded in 1991, Panda Windows & Doors specializes in state-of-the-art custom glass wall systems for both residential and commercial spaces through Panda Windows & Doors. Operating from our manufacturing facility in Las Vegas, Nevada, we have been at the forefront of innovation for over 30 years. Our extensive product lineup includes over 80 high-end offerings, such as pivot doors, French doors, folding doors, lift & slides, multi-slides, horizontal sliding walls, and operable windows. These systems are available in materials like aluminum, steel, stainless steel, bronze, solid wood, and aluminum-wood clad.
We are renowned for our award-winning designs, engineering solutions, and fast lead times, delivering in just 6-10 weeks to customers throughout the U.S. and Caribbean. Trusted by leading architectural firms and glaziers nationwide, we stand as the premier manufacturer of custom luxury windows and doors in the United States.
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Advantages and Disadvantages of Impact-Resistant Glass
Impact-resistant glass offers several advantages, including enhanced safety and security. Since the glass holds together even when shattered, it reduces the risk of injury from flying glass shards.
Additionally, the glass can improve energy efficiency by providing better insulation, which can lead to lower energy bills and a more comfortable indoor environment.
However, hurricane glass can be more expensive than traditional glass options, which can make it unsuitable if you’re on a budget.
What is Spandrel Glass?
Spandrel glass is used to conceal structural elements and mechanical systems within a building. It’s often chosen for its aesthetic appeal, as it can create a sleek, modern look for commercial and residential buildings.
- Spandrel glass can be clear, tinted, or tempered.
- It is commonly used in high-rise buildings and other commercial projects.
- Spandrel glass helps to hide unsightly building components, such as columns and beams.
High-rise building with glass facade showing spandrel glass used to hide structural elements (image courtesy of Teksomolika)
Spandrel glass is versatile and can be customized to match the design of the building. It is available in various colors and finishes, allowing you to achieve the desired look.
Composition and Structure
Spandrel glass is typically made from the same materials as standard glass, but it undergoes additional treatment to enhance its properties. For example, spandrel glass can be tempered to increase its strength and durability.
The glass can also be coated with a ceramic frit or other materials to achieve the desired opacity and color. This coating helps to hide the structural elements behind the glass, creating a clean and polished appearance.
Manufacturing Process
The manufacturing process for spandrel glass involves cutting the glass to size and applying the desired coating. The glass is then tempered or heat-treated to improve its strength and resistance to thermal stress. Once the glass is treated, it is ready to be installed in the building.
Advantages and Disadvantages of Spandrel Glass
One of spandrel glass’s primary benefits is its ability to conceal structural elements and mechanical systems, creating a clean, uniform exterior.
It can be produced in various colors, finishes, and opacities, allowing you to customize it to match your building's design.
However, spandrel glass also has its disadvantages. It does not provide the same level of impact resistance as impact-resistant glass, making it less suitable for areas prone to extreme weather conditions.
Additionally, while it can improve a building's aesthetics, it does not contribute significantly to your project’s energy efficiency or insulation properties.
Impact Resistant Glass vs. Spandrel Glass
Security and Safety
Impact-resistant glass excels in terms of security and safety. Its ability to withstand heavy impacts and extreme weather conditions makes it an ideal choice for buildings in hurricane-prone areas.
The strong polymer layer between the glass panes holds the glass together even when shattered, reducing the risk of injury from flying shards.
In contrast, spandrel glass does not offer the same level of impact resistance. While it can be tempered to increase its strength, it is primarily used for its aesthetic properties rather than its safety features. Therefore, it is not recommended for areas where security and safety are paramount.
Energy Efficiency
Impact-resistant glass can contribute to your building's energy efficiency by providing better insulation. The polymer layer between the glass panes helps to reduce heat transfer, maintaining consistent indoor temperature.
Tightly sealed entrance doorway with glass helps keep indoor space cool by Panda Doors & Windows.
Spandrel glass, on the other hand, does not significantly enhance a building's energy efficiency. Its primary function is to conceal structural elements and create a uniform exterior appearance.
While it can be coated to improve its thermal properties, it is not as effective as impact-resistant glass in providing insulation.
Aesthetics and Practical Considerations
Both impact-resistant glass and spandrel glass offer unique aesthetic benefits. Impact-resistant glass can be used in various applications, including windows, doors, and glass walls, providing a sleek and modern look. Its transparency allows ample natural light to enter inside, creating a bright and open atmosphere.
Spandrel glass, however, is specifically designed to enhance a building's exterior appearance. It can be customized with different colors, finishes, and opacities, making it an excellent choice for creating a cohesive and visually appealing facade.
Ideal Uses for Each Glass Type
Impact-resistant glass is ideal for buildings in hurricane-prone areas or locations where security is a top priority. It is commonly used in residential homes, commercial buildings, and public facilities to protect against extreme weather and potential break-ins.
Spandrel glass is best suited for commercial projects where aesthetics are a primary concern. It is often used in high-rise buildings, office complexes, and other structures where it is important to conceal structural elements and create a uniform exterior appearance.
- Impact Resistant Glass: Use this type of glass if you live in a hurricane-prone area or need enhanced security against break-ins.
- Spandrel Glass: Opt for spandrel glass if you are working on a commercial project and need to conceal structural elements while enhancing the building's aesthetic appeal.
Table comparing both glass types
Making the Right Choice with Panda Windows & Doors
At Panda Windows & Doors, we understand the importance of choosing the right glass for your project.
With over 30 years of experience in the industry, we offer a wide range of high-quality glass systems designed to meet your specific needs. Whether you need impact-resistant glass for safety and security or spandrel glass for aesthetic purposes, we have the perfect solution for you.
- Consult with our experts to determine the best glass type for your project.
- Explore our extensive range of glass systems, including folding doors, lift & slides, and architectural Windows.
- Benefit from our custom design and engineering services to create a unique and functional glass system for your building.
Contact us to find out more about our bespoke windows and doors for your home or business today!
Frequently Asked Questions
How are impact-resistant windows tested?
Impact-resistant windows undergo rigorous testing to ensure they meet safety standards. The testing process includes simulating hurricane-force winds and flying debris impact. The glass must remain intact and functional after these tests to be certified as impact-resistant.
Can spandrel glass be used for exterior windows?
Spandrel glass is typically used to conceal structural elements and is not recommended for areas where transparency is required. However, it can be used in combination with other types of glass to create a cohesive exterior appearance while hiding unsightly building components.
Is impact-resistant glass suitable for every building type?
Impact-resistant glass is suitable for a wide range of building types, including residential homes, commercial buildings, and public facilities. Its primary benefits are enhanced safety and security, making it an excellent choice for areas prone to extreme weather conditions or where security is a top priority.
Is impact-resistant glass available in different tints or finishes like spandrel glass?
Yes, impact-resistant glass can be customized with various tints and finishes to suit the aesthetic needs of a project.
