The Ultimate Guide to Installing Cross Laminated Timber for Sound Insulation

When it comes to sound insulation, there are many materials and techniques available on the market. However, one material that has gained popularity in recent years is cross laminated timber. This innovative building material not only offers structural stability and sustainability, but it also has excellent sound insulation properties.

What is Cross Laminated Timber?

Cross laminated timber, also known as CLT, is a type of engineered wood that is made by stacking layers of wood panels at right angles and bonding them together with adhesive. This creates a strong and stable panel that can be used for various construction purposes, including sound insulation. CLT is made from sustainably sourced softwood, such as spruce or pine, which is then kiln-dried to reduce moisture content.

The panels are then cut to size and stacked in layers, with each layer being rotated 90 degrees to the previous one. This crosswise arrangement of the layers gives CLT its strength and stability.

The Benefits of Using Cross Laminated Timber for Sound Insulation

There are several reasons why cross laminated timber is an excellent choice for sound insulation:
  • High Sound Insulation Performance: CLT has excellent sound insulation properties due to its dense and solid structure. It can effectively reduce airborne noise, such as traffic or aircraft noise, as well as impact noise, such as footsteps or vibrations.
  • Environmentally Friendly: As mentioned earlier, CLT is made from sustainably sourced wood, making it a more environmentally friendly option compared to other building materials. It also has a lower carbon footprint compared to traditional construction materials, such as concrete or steel.
  • Quick and Easy Installation: CLT panels are prefabricated off-site, which means they can be quickly and easily installed on-site.

    This not only reduces construction time but also minimizes disruption to the surrounding area.

  • Structural Stability: CLT is a strong and stable material that can withstand high loads and stresses. This makes it an ideal choice for sound insulation in buildings with multiple floors or heavy machinery.

Recommended Installation Techniques for Cross Laminated Timber Sound Insulation

When it comes to installing cross laminated timber for sound insulation, there are a few techniques that are recommended by experts:

1.Double Stud Wall Construction

This technique involves building two separate walls with a gap in between them. The CLT panels are then installed on one side of the wall, while the other side is left open. This creates an air gap between the two walls, which helps to reduce sound transmission. The double stud wall construction technique is ideal for reducing airborne noise, such as traffic or aircraft noise.

It is also effective in reducing impact noise, such as footsteps or vibrations, as the air gap acts as a cushion.

2.Resilient Channels

Resilient channels are metal strips that are attached to the studs before installing the CLT panels. These channels help to decouple the CLT panels from the studs, reducing sound transmission through the structure. This technique is particularly useful for reducing impact noise, such as footsteps or vibrations, as it helps to absorb and dissipate the energy before it reaches the other side of the wall.

3.Mass Loaded Vinyl

Mass Loaded Vinyl, also known as MLV, is a dense and flexible material that is used to add mass to walls and floors. It is typically installed between the CLT panels and the drywall, creating an additional sound barrier. This technique is effective in reducing both airborne and impact noise, making it a popular choice for sound insulation in buildings with high noise levels.

4.Acoustic Sealant

Acoustic Sealant is a special type of sealant that is used to fill any gaps or joints between CLT panels. This helps to create an airtight seal, preventing sound from leaking through the gaps. This technique is essential for achieving maximum sound insulation performance, as even the smallest gaps can significantly reduce the effectiveness of the CLT panels.


Cross laminated timber is an excellent choice for sound insulation due to its high performance, sustainability, and ease of installation.

By following the recommended installation techniques, you can ensure that your CLT panels provide maximum sound insulation for your building. Whether you are constructing a residential or commercial building, using CLT for sound insulation can provide numerous benefits. Not only will it create a quieter and more comfortable environment, but it will also contribute to a more sustainable and eco-friendly construction industry.

Get Expert Advice on Cross Laminated Timber Sound Insulation

If you are considering using cross laminated timber for sound insulation in your next construction project, it is always best to consult with an expert. They can provide you with tailored advice and recommendations based on your specific needs and requirements. Contact us today to learn more about how cross laminated timber can be used for sound insulation and to get expert advice on the best installation techniques for your project.

Samuel James
Samuel James

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