Rockwool Acoustic Rockfloor

The Rockwool Acoustic Rockfloor is the ideal solution for separating floors in multi-occupancy and high rise buildings. The Acoustic Rockfloor provides excellent impact sound protection, reducing impact sound such as footsteps travelling between floors.

Specifications & Sizes 

  • compliance: BS EN 13162, ISO 14001
  • Euroclass A1 – Reaction to fire
  • Thermal conductivity 0.040 W/mK,
  • Acoustic performance: achieving Part E(resistance to sound, when installed in accordance with Rockwool specifications and guidelines) 

*Always Refer Back To The Manufactures Specification Document  

Download Specification

The ROCKFLOOR® range comprises of two product families; Thermal  ROCKFLOOR® and Acoustic ROCKFLOOR®. Thermal ROCKFLOOR® is a dual density insulation providing thermal performance for ground floors. Acoustic ROCKFLOOR® delivers impact sound protection for intermediate and separating floors.


ROCKWOOL ROCKFLOOR® is designed for use in thermal applications, to meet Building Regulations Part L, in ground floors, and for acoustic applications, to meet Building Regulations Part E, in intermediate and separating floors. This document details the different constructions options available.


Tested to BS EN 13162, ROCKWOOL Thermal ROCKFLOOR® has a thermal conductivity of 0.038 W/mK.

Fire classification

Rated A1 when tested to EN 13501-1 classification using test data from reaction to fire test. ROCKFLOOR® boards can be used in conjunction with ROCKWOOL Flexi to construct a compartment floor, providing 1 hour of fire resistance combined with acoustic isolation.


The density and fibre orientation of ROCKFLOOR® means it is especially effective at absorbing vibration, or impact, based sound. Suitable for use in achieving Part E (Sound) of the Building Regulations in separating floors.

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