The 10 dB Standard for Underlays: What Does It Mean?
When choosing underlays in the Netherlands, their ability to reduce impact noise is often a key factor. The 10 dB requirement is commonly applied, but why is this standard important? And how can you determine if an underlay meets the 10 dB norm? Below, we explain everything you need to know.
What Is the 10 dB Standard for Underlays?
Noise pollution is a significant concern in modern society, and sound insulation plays a crucial role in minimizing disturbances. A well-chosen flooring and underlay combination can contribute to noise reduction. In the Netherlands, many apartment regulations require the use of an underlay that meets the 10 dB impact sound reduction standard, ensuring less noise disturbance for downstairs neighbors.
Which Values Are Used?
In the flooring industry, two key values are used: ΔIlin and ΔLw. The Netherlands primarily uses ΔIlin values.
- ΔIlin (dBΔL) represents the impact sound reduction of an underlay compared to a bare concrete floor.
- A ΔIlin of 10 dB is roughly equivalent to a ΔLw of 21 dB.
Why Is There a 10 dB Standard for Underlays?
Unlike other countries, the Netherlands focuses on measuring low-frequency sounds, as these penetrate floors more easily. This is why the testing standard here covers a wide frequency range, emphasizing low tones.
Underlays are tested in combination with a top floor covering. The entire flooring system is placed on a concrete reference floor, and impact tests are conducted at specific points. The measured improvement in decibels determines whether the underlay meets the 10 dB standard and qualifies for certification.
How Can You Identify a Certified 10 dB Underlay?
The TÃœV Rheinland certification is the most recognized label for underlays that meet the 10 dB noise reduction standard. This voluntary certification helps consumers choose the best underlays available.
Certified Underlays
If you live in an apartment, a certified underlay allows you to prove to your Homeowners' Association (VvE) that your flooring meets the 10 dB ΔIlin requirement. Certified underlays are marked with the TÜV Rheinland seal, and their certification can be found in the Certipedia online database.
How Does TÃœV Rheinland Test Underlays for the 10 dB Standard?
TÃœV Rheinland measures and certifies underlays according to NEN-EN-ISO standards through a four-step process:
Step 1
A sample of the underlay is selected and tested in a specialized laboratory.
Step 2
The sample is analyzed according to specific protocols, and its impact noise reduction is calculated.
Step 3
If the sample meets the requirements, a certificate is issued, and the underlay receives the TÃœV quality seal.
Step 4
Certified products undergo periodic inspections. TÃœV experts randomly test products from the market or conduct production audits to ensure ongoing compliance with the 10 dB standard.
Conclusion
Underlays with the TÃœV 10 dB label have been tested in combination with laminate flooring. However, this does not automatically mean that the same underlay will provide 10 dB noise reduction with wooden planks or parquet.
Want to know which Estillon products carry the TÃœV label? Check out our product finder below and choose the right underlay for your needs.
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