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GenieMat RST Acoustic Floor Underlay

Original price £95.57 - Original price £139.95
Original price
£95.57 - £139.95
Current price £139.95

  • Superior sound control

  • Made from 94% recycled rubber content

  • Used directly under tile, vinyl plank/ tiles and wood flooring

This mold, bacteria, fungi and water resistant acoustic underlay delivers up to an impressive 23dB sound insulation.

GenieMat RST is an innovative acoustic underlayment designed to provide superior sound control for multi-family housing, high-rises, and commercial buildings.

Crafted from 94% recycled rubber content, GenieMat RST is a reliable and environmentally conscious solution for hard surface floor finishes in both concrete and wood frame construction. Ideal for tile, stone, wood, and vinyl floor coverings, GenieMat RST provides superior protection from substrate cracks and maximises sound control.

The mats effectively reduce moisture transfer, which can help to protect your flooring and reduce the risk of mould and mildew growth, whilst delivering superior protection from shock, impact, and vibration, making it an ideal choice for any flooring application.

Installation of Geniemat RST is simple and can be dry-laid onto floorboards or glued with GenieMat Adhesive, for more detailed instructions, check out the GenieMat RST Simple Installation Manual and GenieMat RST Technical Installation Manual.

Features and Benefits:

  • Mold, bacteria, fungi, and water resistant
  • Up to 23dB sound insulation
  • Approved for porcelain tile, vinyl sheet, luxury vinyl tile (LVT), ceramic tile, and all types of wood floor
  • Can be dry laid on to floor boards, or glued with GenieMat Adhesive for a more consistent finish (sound insulation unaffected by use of glue or not)
  • Approved for Document E building regulations


 Product Roll Size Lw (under LVT) Data Sheet
2mm GenieMat RST 1.2m x 22.9m 20dB 📄
3mm GenieMat RST 1.22m x 15.24m 21dB 📄
5mm GenieMat RST 1.2m x 9.1m 23dB 📄


How rubber underlay works

Rubber underlay is a great way to stop sound from travelling through walls and floors. It helps to reduce noise pollution and makes for a much more peaceful and comfortable living environment. Rubber underlay is made up of a soft layer of rubber that is installed between the sub-flooring and the flooring material. It helps to absorb the vibrations that are created when sound travels through floors making it an effective sound-proofing solution for both residential and commercial spaces.

Tackles impact noise

Rubber underlay also helps to reduce impact noise, which is generated when people walk, run, or move furniture. The rubber absorbs the impact energy, which prevents the sound from travelling down through floors. This is especially helpful in multi-story buildings, where the sound can travel through multiple floors and cause annoyance or disruption to other occupants.

Why choose a Rubber Underlay?

Overall, rubber underlay, like the GenieMat RST, is a great way to stop sound from travelling through walls and floors. It helps to reduce noise pollution, impact noise, and provides an effective soundproofing solution for residential and commercial spaces. 

Using an Under Floor Heating System?

You will need to ensure that all the soundproofing products are suitable for use with your specific system as performance differs between them. The GenieMat has a thermal conductivity figure of 0.133 W/mK, please check it’s ok for use with your specific Under Floor Heating system before proceeding.

With all these benefits, it is no wonder the GenieMat RST is quickly becoming the go-to acoustic underlayment for professional contractors and homeowners alike.

Here are the main details for this product:


Thickness: 2mm / 3mm / 5mm Options

Pack Size:

Weight: NA

Density: NA

Coverage: sqm

Fire rating: NA

Thermal Conductivity: 0.133 W/mK

View Product Information Guide

Visit our Fitting Instructions section for more detailed instructions relating to your specific application.

Please contact our team if you have any questions on this product.

Looking for a complete soundproofing solution?

If your looking for soundproofing for a particular situation or application, then the best place to start is with our soundproofing solutions that cover walls, floors, ceilings and reducing echo. Select the relevant application below to find out more.

Wall Solutions

Floor Solutions

Ceiling Solutions

Echo Solutions

Instructions for use

Depending on the application, we have a variety of installation guides:

GenieMat can be dry-laid onto your floorboards, or can be glued using GenieMat FAS Adhesive.

Don’t forget your GenieMat FAS4 Adhesive!

Don’t forget your GenieMat FAS4 Adhesive!

Specifically designed for use with the GenieMat range. This adhesive ensures a level and even finish to the underlay, whilst creating a strong bond to hold the mat in place.

Shop GenieMat Adhesive