Acoustic Carpet Underlay – Thermotec NuWave

Description

Acoustic Carpet Underlay – Thermotec NuWave

Thermotec Acoustic Carpet Underlay is a part of Thermotec’s High Performance NuWave Noise barrier Range of products. Thermotec Underlay reduces noise in both directions, noise traveling down through the floor and up through the ceiling with acoustic matting. Thermotec Underlay is a high performing acoustic underlay that will ensure your application the best of soundproofing. Due to its innovative design and performance Thermotec Underlay is effective for airborne and impact noise applications.

Thermotec Underlay complies of flexible, high-density, limp mass polymers to take the energy out of sound waves across the hearing frequency spectrum, with a low-density direct extruded closed cell polyethylene base adhered to the underside of the product. Thermotec Underlay uses energy absorbing foam and a blocking barrier to counter noise trough floors.

Where to Use It

This premium acoustic underlay is engineered to deliver superior sound insulation across a wide range of settings:

• Multi-storey Residential Buildings, this product reduces both airborne and impact noise between floors. It improves comfort for all residents.  
• Home Theatres, Offices, and Meeting Rooms, it improves speech clarity and stops noise disruption.  
• Commercial and Industrial Premises, it is perfect for busy carpeted hallways, machinery rooms, or workspaces that need quieter operation.  
• Automotive Cabins and Marine Interiors, this is a custom fit to lessen vibration, structure-borne noise, and cabin echo.

By addressing both airborne and structural noise, Thermotec NuWave provides a versatile solution for domestic, commercial, and specialised acoustic requirements.

Acoustic Performance

Thermotec Nuwave Acoustic Carpet Underlay is designed to provide excellent sound insulation. Independent acoustic testing shows the following Sound Transmission Class (STC/Rw) ratings:

• 4 kg/m² – STC 26 (Rw 26) – Ideal for light residential applications.
• 6 kg/m² – STC 29 (Rw 29) – Suitable for medium noise control in homes and offices.
• 8 kg/m² – STC 30 (Rw 30) – Perfect for high-performance soundproofing in commercial and industrial environments.

These ratings indicate the product’s ability to significantly reduce airborne sound transmission, ensuring a quieter, more comfortable space.

NuWave Acoustic Carpet Underlay Installation

• Use standard Domestic Carpet Gripper unless otherwise directed.
• Lay closed cell foam side of underlay on to the floor surface.
• Butt edges of Thermotec Underlay firmly together; underlay tape is necessary.
• Thermotec Foam Carpet Underlay should not be stapled to timber floors or attached by adhesive to concrete floors. By doing so, the acoustic properties may be reduced.
• The product has sufficient weight to remain in a firm position during the fitting of the carpet.
• Cut in as per normal rubber underlay installation.
• Make certain the carpet is firmly attached to leading gripper pins.
• Bolster carpet between far side gripper edge and skirting boards. Once again, check that the carpet is firmly attached to the gripper.

Specification

Thermotec NuWave  Acoustic Underlay shall be used in all areas where carpet  is to be installed to minimize  impact and airborne noise transmission to adjoining levels.

The underlay will be constructed of NuWave  mass loaded vinyl with a density of either 4kg, 6kg or 8kg (specify which density) per square metre, and will be bonded 5mm thickness Thermotec closed cell LDPE foam.

Concrete surfaces will be level and scraped free of surface inclusions The underlay must not be stapled or adhered into place. Edges will be butt joined  into place with an underlay tape used if required