100mm Rockwool Sound Insulation Slab 1200mm x 600mm (4.32m²)

In stock
£41.51 Inc VAT
£9.61 Per M²

Rockwool sound insulation is a high density mineral wool insulation that effectively controls the passage of sound between internal areas. It also offers exceptional thermal performance.

307 In Stock
New Southgate
62 in stock
Park Royal
48 in stock
Staples Corner
0 in stock
West Hampstead
2 in stock

Product Information

Rockwool Sound Slab is a high- density mineral wool, dual purpose thermal and acoustic insulation slab with a unique flexible edge along one side. It has been uniquely designed with flexible edges ensures a perfect fit in internal and separating walls and floors, for optimum effectiveness. Rockwool sound slabs also repels water and is vapour permeable, resisting rot and mould.

Key Features

  • Patented flexi edge offers accurate fit to all widths
  • Will not slump, even if studs shrink
  • Fits all typical metal and timber frame spacing
  • Excellent thermal, acoustic and fire properties
  • Non-combustible(Euroclass A1)
  • Easy to handle and install
  • Superior fit with no waste

Rockwool Sound Slab provides effective thermal insulation, fire resistance and acoustic performance in all framed areas of the building. The flexi edge allows the product to be tightly fitted between timber and metal frames, without the need for cutting or waste. Rockwool Sound Slab has a thermal conductivity of 50-120mm, 0.038 W/mK when tested to EN13162. At 140mm thickness, Rockwool Sound Slab has a thermal conductivity of 0.035W/mK. Rockwool Sound Slab works in two distinct ways to reduce noise, either by impeding the transmission of sound through an element of the structure, or by absorption of sound at the surface. Noise absorption is expressed as a factor between 0 and 1.0. The more sound that a surface absorbs, the higher its absorption coefficient is. The structure of the fibres in Rockwool Sound Slab make them ideal for use as a sound absorber, with characteristically high coefficients over a wide frequency range. Rockwool Sound Slab corresponds to the BRE Global Green Guide online generic specification Stone wool insulation-density 45 kg/m³ (ref. 815320008) which achieves a summary rating of A+ within all building types. All Rockwool stone wool insulation repels liquid water due to its fibre orientation and the presence of water repellent additives. Relying on entrapped air for its thermal properties, Rockwool Sound Slab does not contain (and has never contained) gases that have an ozone or global warming potential. Therefore, they have a zero GWP for the purposes of rating schemes such as the Code for Sustainable Homes.

Product Specifications

Technical Specification
Brand: Rockwool
MPN: 180889
Pack Size: 6
Size: 600mm x 1200mm x 100mm

  • Lead time of 2-3 Working Days.
  • This product is dispatched from Builder Depot and is available for in-store purchase.
  • Orders received by 12:00pm are processed the same working day.
  • Your delivery charge will be displayed in the trolley page and checkout prior to purchase.
  • Once the order has been dispatched you will be sent relevant tracking information.
  • This item is eligible for returns as per our Returns Policy.
  • The products ordered are for kerbside delivery only which means our drivers will unload goods at the nearest access point on the kerb outside of your property.
  • Please ensure you have adequate labour onsite to accept the goods and offload.

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4.7 /5

Based on 11 customer(s) reviews

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  • 5

Shwan R.   published 06/10/2020 following an order made on 25/09/2020



Alexander T.   published 30/03/2020 following an order made on 20/03/2020



Anonymous customer   published 14/07/2019 following an order made on 08/07/2019


Easy to cut nice

Anonymous customer   published 13/03/2018 following an order made on 08/02/2018



Anonymous customer   published 24/02/2018 following an order made on 13/02/2018



Anonymous customer   published 20/02/2018 following an order made on 30/01/2018


Works ell

Anonymous customer   published 12/11/2017 following an order made on 29/10/2017



Anonymous customer   published 27/10/2017 following an order made on 17/10/2017


It's OK.

Anonymous customer   published 23/01/2017 following an order made on 05/01/2017


Does exactly what they say they do. Easy to handle and cut.

Anonymous customer   published 28/09/2016 following an order made on 18/09/2016


Good for insulating between floorboards to reduce sound transmission.