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RWA45

ROCKWOOL® RWA45 is a stone wool slab for thermal, fire and acoustic insulation applications.

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  • Kitemark Certificate - KM 06661

Application(s)

  • Roof
  • External Wall
  • Floors & Ceilings
  • Internal Wall
  • Fire Protection
  • Drylining & Partitions
  • Standing Seam Roof

Product description

ROCKWOOL RWA45 slabs can be used for acoustic and thermal insulation of partition walls, ceilings, floors and roofs. As it is non-combustible, the product will not contribute towards the growth of a fire.

RWA45 is available in a variety of thicknesses. Specialist facings are available on request.

  • Euroclass A1 in accordance with BS EN 13501-1 Reaction to Fire rating
  • Thermal conductivity 0.035 W/mK
  • CE marked in accordance with EN 13162:2012+A1:2015
  • Density exceeds 10kg/m³ in accordance with Approved Document E

Areas of application

RWA45 slabs are suitable for use on the following construction types:

  • Flat roof
  • Metal wall
  • Partition wall
  • Separating wall
  • Intermediate floor

Documentation

ROCKWOOL Slabs Datasheet

ROCKWOOL Slabs Datasheet

ROCKWOOL® Slabs are made from stone wool and provide thermal, fire and acoustic insulation for various applications

ROCKWOOL Stone Wool BSI Kitemark Certificate

ROCKWOOL Stone Wool BSI Kitemark Certificate

Certificate No. km06661-bs-en-13162-2012-a1-2015

ROCKWOOL Slabs Installation Guide

ROCKWOOL Slabs Installation Guide

Installation guidelines for ROCKWOOL Slab Products RW3 RW4 RW5 RW6 RWA45

SUIS ROCKWOOL UK

SUIS ROCKWOOL UK

Safe use instruction sheet ROCKWOOL stone wool insulation products

Republic of Ireland Price List

Republic of Ireland Price List

Price List March 2025

UK Price List

UK Price List

Price List March 2025

Product properties

NameValueTest standardSymbolUnit
Declared thermal conductivity0.035EN 826λDW/mK
Reaction to FireA1EN 13501-1Euroclass
Long term water absorptionNPDEN 12087WL(P)kg/m²
Short term water absorptionNPDEN 1609WSkg/m²
Product standardEN 13162:2012+A1:2015
Declaration of Performance (DoP) numberUK-WER-0013-02
Facing type, side 1No Facing

Product variants

Royal Academy of Music, Building, Leisure, HARDROCK Multi-fix (DD), RWA45

Photo by: Adam Scott - @adamscottimages : Adam Scott - @adamscottimages - TO BE CREDITED WHENEVER PUBLISHED

Royal Academy of Music school hits strict sound targets - case study

Discover how ROCKWOOL insulation was used to create acoustically sound performance spaces at the venue.

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Thermal and Sound Range