Common Soundproofing Mistakes & Solutions

How to Fix Common Soundproofing Mistakes

Embarking on a soundproofing project can be a daunting task, especially when you want to create a serene environment at home or in your workspace. While the benefits of soundproofing are immense—think improved focus, better sleep, and general well-being—many make crucial mistakes that compromise the effectiveness of their efforts. This article aims to elucidate common soundproofing blunders and provide practical solutions for them. 

1. Failing to Identify the Sound Source

The Pitfall: The biggest mistake people often make at the outset of their soundproofing journey is failing to accurately identify the source of the offending noise. Is it impact noise, such as footsteps from the upper floor? Or is it airborne noise like conversation or TV sounds seeping through walls? Diving into a project without this vital information can result in wasted time, effort, and resources.

The Importance of Getting it Right: Each type of sound source necessitates different soundproofing measures. For example, impact noise might require resilient channel systems, while airborne noise could be effectively tackled with denser, mass-loaded materials. Furthermore, understanding the frequency of the noise is crucial as lower-frequency sounds like bass can be harder to soundproof against.


  • Sound Testing: Carry out a comprehensive sound test, either by yourself or through a professional. Tools like sound metres can help identify the specific decibel levels and frequency ranges you’re dealing with.
  • Custom Solutions: Once you know the source, custom solutions can be created. Materials like rockwool rwa45 can offer significant advantages. This insulation slab excels in acoustic, thermal, and fire performance, making it a multi-faceted solution once you’ve pinpointed the type of noise you’re combating.

Mistake 2: Ignoring the Quality of Materials

The Pitfall: Opting for lower-quality materials can be tempting, especially for those on a budget. However, the old adage “you get what you pay for” holds especially true in the realm of soundproofing. Cheaper products might offer immediate cost savings but usually fall short in long-term efficacy.

The Importance of Getting it Right: High-quality materials such as knauf performance plus are developed with extensive research and technological innovation, and designed to offer superior sound, fire, and moisture resistance. In environments like schools or hospitals, where safety and tranquillity are paramount, the quality of the soundproofing materials can make all the difference.


  • Invest Wisely: Always check product specifications and look for materials that have undergone rigorous testing. Knauf Performance Plus, for instance, has a high-density core with added performance-enhancing ingredients that promise durability and effectiveness.
  • Check Reviews and Ratings: Customer and professional reviews can provide invaluable insights into the actual performance of a product in various settings.

Mistake 3: Overlooking Acoustic Weak Points

The Pitfall: Sound can be cunning and find its way through the tiniest of gaps. Often, the biggest soundproofing mistakes aren’t about what you can see, but what you overlook. Corners, joints, doorways, and even outlets are often ignored, leading to what experts refer to as “flanking paths” where sound can travel freely.

The Importance of Getting it Right: Overlooking these areas defeats the purpose of soundproofing the larger, more obvious surfaces. If you’ve spent time and money on installing knauf soundshield plus on your walls but neglect the corners or the space under the door, you’ll find your soundproofing efforts futile.


  • Full Room Assessment: Take a step back and assess the room holistically. Make sure to include all potential weak points in your soundproofing plan.
  • Use Specialised Materials: Knauf Soundshield Plus is an excellent choice for tackling these challenging areas. It offers up to 120 minutes of fire protection and up to 54 Db (Rw) acoustic sound reduction. Employ it liberally, especially in those often overlooked acoustic weak points.

Mistake 4: Using the Wrong Techniques

The Pitfall: Soundproofing is more than just slapping on some acoustic panels or stuffing the walls with insulation; it’s a science that involves careful planning and precise execution. Yet many people proceed without proper knowledge, relying on DIY videos or misconstrued advice. The consequence? Poorly executed projects that do little to alleviate the noise issue.

The Importance of Getting it Right: The techniques used in soundproofing can either make or break the project. Whether it’s decoupling, adding mass, damping, or using absorption materials, each technique has its specific application, and using the wrong one can lead to disappointing results.


  • Research Techniques: Educate yourself on the soundproofing techniques that are appropriate for your specific problem. Resources from experts can provide valuable insights.
  • Material-Technique Alignment: Match your chosen materials with the correct technique. For example, Rockwool RWA45 excels when used in partition walls and ceilings, and can work well in damping techniques due to its excellent acoustic and thermal properties.

Mistake 5: Neglecting Professional Advice

The Pitfall: Many people believe that they can tackle a soundproofing project single-handedly, thanks in part to the plethora of DIY tutorials available online. However, while these resources can be useful, they are no substitute for professional advice, especially for complex or large-scale projects.

The Importance of Getting it Right: Soundproofing is a significant investment, both in terms of money and time. A poorly executed project can be costly to fix and can leave you with the same noise issues, or even make them worse. Therefore, consulting professionals can add immense value to your project.


  • Initial Consultation: Before starting your project, consult with a professional who can analyse your specific needs and suggest appropriate solutions. They can guide you in selecting high-quality materials like Knauf Performance Plus or Knauf Soundshield Plus based on your unique circumstances.
  • Ongoing Support: Even if you decide to go the DIY route, having a professional to consult with throughout the project can help you avoid costly mistakes and ensure that you’re getting the most out of your investment.


Soundproofing doesn’t have to be a guessing game full of errors. Armed with the right information and materials such as Rockwool RWA45, Knauf Performance Plus, and Knauf Soundshield Plus, you can create a tranquil space free of unwanted noise. 

If you require high-quality soundproofing materials, don’t hesitate to contact Galaxy Insulation. Our team of experts is ready to provide impartial, cost-effective, and technically sound advice to ensure your project is a resounding success.

Author Bio:

Cinthia Rosa

As an Insulation Expert at Galaxy Insulation and Dry Lining, UK, Cinthia’s contribution to the company’s growth has been invaluable. She has amassed abundant knowledge and technical know-how regarding insulation products, which she consistently shares with the masses through engaging and informative blogs.

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