Selecting the right type of glass can make a significant difference when it comes to soundproofing your home or office. The two popular options for sound insulation are acoustic glass and soundproof window glass.
While both serve the same purpose of blocking out unwanted noise, they differ in their construction and effectiveness. Acoustic glass is specially designed to reduce noise levels while also allowing light to pass through. On the other hand, soundproof window glass is made up of multiple layers of glass and other materials to create a barrier against sound.
In this article, we’ll compare acoustic glass and soundproof window glass to determine which is better for sound insulation based on their features and performance
What is Acoustic Glass?
Acoustic glass is a type of noise-reduction glass designed specifically to reduce noise levels. It is composed of double or triple glazed glass separated by a special acoustic interlayer. This interlayer is typically made of polyvinyl butyral (PVB) and dampens sound waves as they pass through the glass. This leads to superior sound insulation compared to traditional single-pane glass and is perfect for busy areas such as motorways, main roads, and airports.
Some Features of Acoustic Glass
- It is perfect for sound insulation between rooms.
- It provides insulation from rain impact noise in overhead or roof glazing
- It allows tailored sound insulation solutions when customized with different decibel ratings
Limitations of Acoustic Glass
- It is less effective at reducing low-frequency noise, such as traffic or airplane noise than reducing high-frequency noise, such as voices or music.
- It may not block out all unwanted noise completely.
What is Soundproof Windows Glass?
Soundproof window glass refers to a type of glass that is designed to reduce the amount of noise that enters or exits a building. It is constructed using various techniques, including laminates, films, coatings, or thicker glass, to improve its sound insulation properties. Soundproof glass can be used in various applications, such as in residential homes, commercial buildings, and industrial facilities.
Some Features of Soundproof Windows Glass
- Reduces noise transmission by up to 95%
- Improves thermal insulation
- Saves energy
- Increased privacy
- Enhances security
Limitations of Soundproof Windows Glass
- Its thickness and weight can make it difficult to install in some situations.
Comparison of Acoustic Glass and Soundproof Window Glass
Acoustic and soundproof windows are designed to reduce noise transmission through windows, but they achieve this through different means. Here’s a comparison of their key features:
Thickness
Acoustic laminated glass comprises two or more layers of glass, with an interlayer of acoustic PVB (polyvinyl butyral). The thickness of the acoustic glass can vary depending on the specific application and the desired acoustic performance, but generally, it ranges from 6.4mm to 12.8mm per layer.
On the other hand, the standard thickness for soundproof window glass is 12mm and can go up as and when desired. The glass’s thickness can help minimise the transmission of sound waves. However, it gets heavier and may be challenging to move.
Spacing
Acoustic glass can also have varying degrees of spacing between the layers of glass, which can further improve its acoustic performance. This spacing can be achieved using thicker interlayers, such as 1.14mm acoustic PVB, or a larger air gap between the glass layers.
On the other hand, soundproof window glass has at least 80% vacuum between the glass panes to improve sound insulation. This can be tailored as per your requirements.
Interlayers
Acoustic glass utilises acoustic PVB or EVA interlayers to curtail noise transmission. These interlayers are created to absorb and dampen sound waves as they penetrate through the glass, thus reducing the noise that can pass through your window.
Soundproof window glass may also add PVB interlayers and other materials including SGP (SentryGlass Plus) or EVA. The key is to use interlayers to provide additional strength and security to the window, which can also help reduce noise transmission.
Cost
Acoustic glass tends to be more expensive due to the additional sound insulation properties.
On the other hand, the soundproof windows cost can be lesser than that of acoustic glass windows since it does not involve multiple layers of glass or a specialized interlayer. However, the exact cost difference depends on the specific products and suppliers.
Choosing the Right Glass for Sound Insulation
Several factors need to be considered when choosing the right glass for sound insulation. These include the level of noise reduction required, the aesthetics of the building, the budget available, and the local building codes and regulations. Therefore, it’s essential to work with a qualified professional who can help determine the best type of glass for your specific needs.
For those who require high levels of sound insulation, acoustic glass or double-glazing soundproof window glass may be the best option. Acoustic glass is a laminated glass that contains an interlayer to absorb sound vibrations and prevent noise transmission. Double glazing soundproof window glass involves two glass panes with a layer of gas or air between them to reduce noise transmission.
Soundproof window glass may be a better option for those who prioritise aesthetics. It can provide sound insulation while still maintaining the appearance of the building.
Author Bio:
Pankaj Gorsia
Pankaj Gorsia is the Director of CUIN Glass in London. Under his leadership, Crystal Units has continuously grown thanks to its exclusive high-performance insulating glass with suspended film technology in the residential and commercial sectors.
https://www.linkedin.com/company/c-u-in/
