3mm Regupol Sonus (4515) Multi 3 20mx1000mm

REGUPOL SONUS MULTI 3, previously known as REGUPOL 4515 Multi, is a durable and sturdy acoustic underlay that is designed to reduce impact sound under a variety of floor finishes, while delivering outstanding acoustic performance that does not deteriorate or collapse over time. This underlay meets the requirements of Approved Document E in England and Wales, Technical Booklet G in Northern Ireland, and Example Construction floors under Section 5 in Scotland. Detailed performance specifications are provided in the performance section.

In addition to its outstanding performance, REGUPOL SONUS MULTI 3 is also available in a fire-retardant version. It is recommended for use with a variety of floor finishes including vinyl sheeting, LVT, carpet, carpet tiles, and tiled floor finishes such as ceramic, granite, stone, and marble tiles. It is also compliant with CoR for light duty applications such as domestic dwelling floors, and can be used with wooden and laminate-based floor finishes.

The underlay offers long-term performance without collapsing or bottoming out under high point loads, and is resistant to ageing and deformation. It is suitable for use with underfloor heating, and is quick and easy to install by bonding it to the subfloor beneath the final floor finish. Independent test data is available to demonstrate its compliance with Approved Document E, Technical Booklet G, and Section 5 on certain floors.

REGUPOL SONUS MULTI 3 is an environmentally friendly product that is manufactured using recycled materials and is 100% recyclable. Its manufacturing facility is certified to ISO 9001, ISO 45001, ISO 14001, and ISO 50001.

Application & Installation

• Installation
  • Full installation guidelines are available on request. However, key points to observe are:
  • Area of installation must be dry, dirt and dust free and weather tight. If over 75% RH, use REGUPOL barrier 99-201. To determine RH, please use a Hygrometer.
  • REGUPOL sonus multi should be unwound and left for a minimum 8 hours or ideally overnight at the place where it is to be installed, to allow for any potential shrinkage.
  • The subfloor must be sound, smooth and dry. A self-levelling compound may be required to achieve the desired ‘SR’ value.
  • REGUPOL sonus multi acoustic underlays can be easily installed providing the CMS Danskin Acoustics installation guidelines are followed at all times.
  • When bonding to bare concrete a suitable concrete sealer is recommended to ensure maximum adhesive coverage and bond strength.
  • When installing timber flooring over REGUPOL sonus multi always use a flanking band around the perimeter to reduce impact transmissions into walls.
  • When installing ceramic tiles, stone and vinyl flooring leave at least a 3mm gap around the perimeter which should be filled with a flexible sealant.
• Storage
  • REGUPOL sonus multi must be stored indoors. At no time must the REGUPOL sonus multi be exposed to the elements of the weather. REGUPOL sonus multi must always be kept dry, otherwise moisture will build up in the material and will subsequently make bonding to the subfloor very difficult. Moisture will also cause the material to curl and ripple at the edges once unrolled.
  • It is recommended that the polythene packaging be removed in the area where it shall be applied.