Does Smart Glass Block Heat?

Understanding the Energy Efficiency of Smart Glass Technologies

Smart glass technology is a revolutionary innovation that enhances user privacy by turning opaque upon demand or goes from light to dark, as with electrochromic glass. Beyond these exceptional capabilities, smart glass technologies also present an energy-efficient solution to modern-day environmental challenges.

In today's world, energy efficiency has become an increasingly significant topic of discussion. While the use of renewable energy sources and better insulation have been touted as solutions for reducing energy usage, more innovative options are continuously being explored. Smart glass technology is part of the solution for both commercial and residential properties.

Why Smart Buildings Use Smart Glass

Switchable smart glass has become increasingly popular in recent years, as it offers an opportunity to satisfy both modern architectural trends, the need for privacy, and energy-saving measures. When powered on and off, smart glass goes from clear to frosted. When switched to opaque, smart glass and smart film cut the glare from sunlight and provide privacy, but still allow about two-thirds of natural light through. This means it is unlikely that the user will need to use artificial light to compensate when the glass is frosted, unlike many curtains and blinds.

How Does Smart Glass Block Heat?

Switchable smart glass works to improve energy efficiency by blocking out heat and light when necessary, avoiding the need to overly use heating, air conditioning, or lighting. When the fully opaque privacy mode is chosen, the amount of heat entering the building is reduced by 40%. You can control the opacity settings and heat in a variety of ways, from wall switches to remotes. However, you can also use sensing devices that automatically change the state of the glass when needed, which is the most effective method of cutting down on energy usage.

What About Electrochromic Glass?

Another technology commonly referred to as Smart Glass is electrochromic glass (also known as dynamic glass). Electrochromic glass and film are advanced technologies designed to enhance energy efficiency by dynamically adjusting their tint in response to electrical signals. Unlike PDLC-based smart glass, which switches instantly between clear and frosted states for privacy, electrochromic glass gradually darkens to reduce glare and heat gain, making it ideal for exterior windows in commercial and residential buildings. By blocking solar heat and UV rays, electrochromic glass reduces the need for air conditioning, leading to substantial energy savings. This makes dynamic glass a valuable solution for smart buildings seeking to optimize thermal comfort and reduce energy costs.

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Smart Glass Performance

Smart glass consists of a switchable PDLC layer sandiwched between two pieces of laminated and tempered glass.

Smart Film Performance

Smart Film is a switchable privacy window film that applies to any smooth glass surface, instantly changing from clear to frosted with the click of a button or a smart home command. It enhances privacy, reduces glare, and blocks UV rays while still allowing natural light to pass through and is the perfect retrofit option.

Electrochromic Glass Performance

Electrochromic glass and film are dynamic technologies that gradually adjust their tint in response to an electrical signal, reducing glare and heat gain while maintaining visibility. Unlike PDLC-based smart glass, which switches instantly between clear and frosted, electrochromic glass darkens over time, making it ideal for exterior windows in energy-efficient buildings.

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Smart Glass vs. Electrochromic Glass: Which Is Right for You?

Both smart glass and electrochromic glass offer advanced light control and energy efficiency, but they have key differences that make them suitable for different applications.

• Smart Glass (PDLC-Based): Ideal for interior partitions, office spaces, and residential windows where instant privacy is needed. This technology switches from clear to frosted in milliseconds and provides a high level of privacy without significantly reducing natural light.
• Electrochromic Glass: Best for exterior windows in high-end commercial and residential buildings where gradual tinting is preferred. This glass transitions over several minutes and offers better heat control for smart buildings and smart homes.

Energy Savings = Cost Savings

Installing switchable smart glass in a property not only helps the environment, but it can also lead to significant savings on heating, lighting, ventilation, and air conditioning costs. This long-term saving should be considered when making a decision about whether to install smart glass in residential or commercial properties.

A prime example of the cost savings possible through switchable smart glass comes from the Empire State Building in New York City. In 2012, the landmark building underwent a major refurbishment, installing switchable smart glass as a key element of the renovation. Within just one year, the building was able to save an impressive $2.4 million on its energy bills. This remarkable feat underscores the power of switchable smart glass to deliver significant energy savings in a remarkably short span of time.

Insulated Smart Glass Units

For those looking to experience the ultimate level of energy efficiency, we recommend our innovative switchable insulated glass units (IGUs), which offer both privacy and exceptional temperature regulation. Our double and triple-glazed IGUs utilize advanced technological features that enhance thermal performance, keeping your living and work areas cooler in the summer and warmer in the winter. These dynamic windows are designed to provide an unobstructed view when desired, with the added benefit of customizable opacity whenever you need privacy. Our durable and reliable IGUs are resistant to damage and break-ins, making them an excellent investment for energy efficiency, privacy, and security.

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More Comfortable Workplaces and Homes

Apart from improving energy efficiency and reducing energy costs, there are many other benefits associated with the adoption of switchable smart glass and electrochromic glass. This glass not only increases energy efficiency but also improves the comfort and aesthetics of a building. The ability to adjust privacy settings and the use of natural light is likely to enhance the feeling of well-being for the occupants of the building.

Where Can I Order Privacy Glass & Electrochromic Glass?

Investing in smart glass technology is a smart move when it comes to energy efficiency in residential and commercial properties. Energy-saving benefits and privacy on demand, coupled with long-term cost savings, make it an attractive option. Deciding to install switchable smart glass in your building is an opportunity to not only enhance the energy efficiency of the building but also improve its comfort and appeal.

Smart Glass Country is one of the leading switchable glass manufacturers across the globe, with a range of products that can be used for various commercial and residential applications. 

To find out more about how switchable smart glass can improve the energy efficiency of your property, visit our products page or contact our expert team today. Browse our applications page and be inspired by the variety of potential applications of electric privacy glass, and discover how you can improve the energy efficiency of your property today.

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