Floor Solutions


Like clouds under foot.

With high-rise living and buildings with multiple-occupancy becoming increasingly common, acoustic performance of intermediate and separating floors is key in design criteria and specifications. Acoustic ROCKFLOOR® delivers robust impact sound protection. 


ROCKWOOL Acoustic ROCKFLOOR® is a tissue faced, high compressive insulation slab, designed with Part E (Acoustic) regulations in mind. Made from dual density mineral stone wool insulation, the ROCKFLOOR® range not only has excellent sound absorption, but also enhances fire stopping between floors. When used in conjunction with ROCKWOOL FLEXI® to create a compartment floor, it can provide up to 1-hour fire resistance.

The unique dual density of ROCKFLOOR® means it can be laid over a slightly uneven subfloor. The lower density absorbs imperfections and the high-density point provides a strong point load resistance.

Acoustic ROCKFLOOR® is an ideal high performing acoustic solution for separating floors which provides occupants with optimum comfort. 



CE marked

Euroclass A1 non-combustible

  • Creating sound environments – the dual density structure allows high compressive and point load resistance, reducing the noise transfer and vibrations through separating floors.
  • Comfortable and sound – minimises thermal and acoustic bridging between floors helping to compartmentalise rooms.
  • Ease of installation – ROCKFLOOR® boards are easy to handle and fit, keeping the time spent fitting the layer to a minimum.
  • Preserving the finish – sub-floor imperfections are absorbed by the dual density layers, creating a neat and level finish.
  • The choice is yours – Acoustic ROCKFLOOR® can be placed over or under the site slab. 

Product Properties

Compliance BS EN 13162, ISO 14001
Reaction to fire Fire Properties Euroclass A1
Thermal conductivity 0.040 W/mK
Acoustical Performance Achieves Part E (resistance to sound) when installed in accordance to ROCKWOOL guidelines
Water repellent Water Repellent

Product range and ancillaries

Item number External item number Country Thickness (mm) Width (mm) Length (mm) Packs Per Pallet Square Meters Per Pallet
122663 122663 UK 25 600 1000 96 57.6
122664 122664 UK 30 600 1000 80 48
122666 122666 UK 50 600 1000 48 28.8

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