RLA Polymers

Acoustic Solutions

AKU-Tile® 4 Impact Noise Reduction (INR) System
Acoustic Felt Tiles for Impact Noise Reduction under Ceramic Tiles

AKU-Tile® 4 INR
System Components
Surface Preparation
Priming & Application
Expansion / Movement Joints
Technical Data
Test Results
Technical Data Sheet (pdf)


The AKU-Tile® 4 Impact Noise Reduction (INR) System is a system incorporating a high density non woven, polyester felt tile that when installed under ceramic tiles (to specification) will reduce the amount of impact noise that can be transmitted through the substrate. AKU-Tile® 4 INR is an ideal solution to new, high-rise apartments where designers are concerned for the end-users health and comfort. AKU-Tile® 4 INR is easy and fast to install, ensuring large commercial projects timelines are not compromised when choosing to install the AKU-Tile® 4 INR System.

Product benefits:

  • Easy installation
  • Light weight
  • Low profile – 4mm tile thickness
  • Suitable for internal or external installations
  • Water durable – will not swell like cork if subject to water*
  • Cost effective
  • Can be installed on concrete or timber surfaces

* Although it is water durable it must be waterproofed as per the system

Acoustic Felt Tiles

Our technical advice for use, whether oral, written, or in tests, is given with our best knowledge. It is an indication only and does not involve our responsibility. Values are given as examples and may not be regarded as specifications. As we are not able to monitor product use and given the numerous materials and possible uses, users must perform the necessary tests to verify that the product is suitable for the intended use. Users are responsible for complying with the local legislation and for obtaining any required approvals or authorizations. Users of our products are invited to contact our departments to obtain current versions of technical data sheets and safety data sheets.
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Address: 24-28 Lady Ruby Drive, East Tamaki, Auckland. PO Box 64207, Botany, Auckland 2163, New Zealand.