Laminating vs. Double Glazing Glass for Soundproofing

If you’ve decided to soundproof a space, the first thing you think of may be walls and insulation, but any glass in windows and doors plays an important role. Two of the popular options for this task are laminated glass and double glazing, which both offer benefits of their own. Before choosing the right glass for your windows, it’s important to know the differences and how each can help your project.

Laminated Glass

Laminated glass is a type of safety glass that is made with two or more layers of glass with an interlayer, typically made of polyvinyl butyral (PVB) or ethylene-vinyl acetate (EVA), sandwiched between them. 

This interlayer is important because it acts as a barrier that can dampen sound and absorb vibrations, which reduces the amount of noise that can pass through the glass. This makes laminated glass particularly effective in blocking low-frequency sounds, like traffic noise or construction sounds.

In addition to its soundproofing qualities, laminated glass is known for enhanced safety and security. Even if the glass is shattered, the interlayer holds the fragments together, reducing the risk of injury and providing an additional barrier against break-ins. It also offers safety in the form of UV protection since laminated glass can block up to 99% of UV rays, protecting your furniture, flooring, and fabrics.

Overall, the construction of laminated glass makes it more resistant to impact and weather conditions, ensuring a longer lifespan and sustained performance in various environments.

Applications of Laminated Glass

Laminated glass is ideal for use when noise reduction is the top priority, like residential buildings near loud streets, commercial spaces requiring quiet, and schools. Its safety benefits also make it suitable for areas prone to impacts or where security may be a concern.

Double Glazing

Double glazing, or insulated glass units, consists of two panes of glass separated by a spacer filled with air or inert gas, such as argon. This acts as an insulating barrier, which provides some soundproofing, but the primary benefit of double glazing is its thermal insulation properties. This space reduces overall heat transfer and helps keep indoor temperatures consistent, which can also improve energy efficiency.

Double glazing is also known to reduce condensation on windows because the inner pane has a higher surface temperature.

Applications of Double Glazing

Double glazing is appropriate for a wide range of applications, including residential homes, office buildings, and any space where both thermal insulation and soundproofing are needed. It is particularly effective in climates with significant temperature fluctuations.

Laminated Glass and Double Glazing: Which Is Right for You?

When choosing between laminated glass and double glazing for soundproofing, the right choice will depend on your exact needs and goals in a number of areas.

Soundproofing Efficiency

Laminated glass is known for its soundproofing benefits, especially when it comes to low-frequency sounds. The inner layer of these windows is the key to the best possible glass soundproofing. While double glazing does offer good soundproofing, laminated glass is the best option for soundproofing priorities. 

Thermal Insulation

When it comes to thermal insulation, double glazing usually wins out and provides more energy savings and increased comfort. While laminated glass offers some insulation, it is not as strong.

Cost

The manufacturing process that goes into laminated glass means it can have a higher price upfront when compared to double glazed options. However, the benefits of increased safety, soundproofing, and UV protection can make these windows a better investment and overall more cost-effective.

Installation

Both types of glass can be installed in existing frames, but the installation process and requirements may differ. Consulting with a professional can help determine the best option for your specific needs.

Maintenance

Both laminated glass and double glazing require minimal maintenance. However, it’s essential to ensure that the seals on double glazed units remain intact to prevent the gas from escaping and maintain the unit’s efficiency.

Less Sound & More Safety with Smartech

Choosing between laminated glass and double glazing for soundproofing depends on your own project goals and priorities. Laminated glass stands out in reducing low-frequency noise and providing enhanced safety, UV protection, and durability, making it ideal for environments where these factors are critical. However, for projects that need thermal insulation, double glazing can be a good alternative with many applications.

At Smartech, we specialize in durable and reusable vacuum bags for glass lamination. Our team of experts can help you evaluate your options and make an informed decision so that you find the right vacuum bag for your project.