Acoustic Membrane

ROCKWOOL Acoustic Membrane is a high performance, sound deadening, flexible polymer mass layer which can be used to further enhance the performance of ROCKWOOL Dual Density roofing boards. ROCKWOOL Acoustic Membrane will provide the additional mass required for very high acoustic specifications.


  • Improves both airborne and impact noise reduction
  • Available as a roll for quick and easy installation
  • Forms part of a fully tested acoustic system
  • Suitable for new build and refurbishment

Cladding Roll

ROCKWOOL Cladding Roll is a lightweight thermal and acoustic cladding insulation suitable for the external walls and roofs of metal framed buildings. It provides excellent insulation, fire protection and soundproofing performance and is available in a variety of thicknesses. The product itself consists of a lightweight, flexible matt available with or without aluminum facing and supplied as a compression wrapped roll. ROCKWOOL Cladding Roll (Aluminum Faced) has a very high tensile strength that makes it particularly suitable for vertical industrial applications.


  • Fire classification A1 (non-combustible)
  • Water repellent
  • Chemically inert
  • Dimensionally stable, long term & consistent thermal performance
  • Excellent acoustic properties


ROCKWOOL Conrox is specially developed to be used as a core component in sandwich panels. It can be obtained either in slab or in lamella form to suit the requirement of sandwich panel manufacturers.

DuoRock Roofing Boards

Robust insulation boards for warm flat roofs. DuoRock is a cost-effective and durable insulation solution. The dual density roofing boards are manufactured with a robust top surface, offering effective point load resistance. Made of stone wool fibres, DuoRock is perfect for use with mechanically fastened or ballasted single ply membrane systems. The rigid boards are non-combustible and energy-efficient, providing exceptional acoustic performance and roofing insulation. Available in the board types plain and tissue faced.

HardRock 2 SD

Produced with a robust, high density top surface, the products therefore exhibit excellent point load compressive resistance. The dual density roofing boards are manufactured with a high density. The panel is coated with a layer of bitumen. For heat insulation and acoustic in metal or concrete flat roofs.


  • Faster to install
  • High mechanical benefits
  • Excellent resistance to the point load
  • Well-known improvement of the sound insulation
  • Neither-hydrophilic nor hygroscopic
  • Chemically inert
  • Free of CFC and HCFC, respectful with environment

HardRock Multifix Boards

Modern Flat roof insulation systems are more than just structures that protect buildings and their occupants from external elements. Flat roofing materials are often used to reduce heat loss, provide fire resistance and reduce noise pollution. ROCKWOOL insulation for flat roof and built up metal roofs have been designed to meet the demands of modern roof systems, providing durable solutions which simplify design and lower costs. Flat roof insulation will minimize the escape of heat and as ROCKWOOL insulation is made of stone, it will act as a fire barrier as well as reducing the escape of heat from the building.

Rainscreen Duo Slab

A ventilated façade is a layered construction consisting of cladding, a supporting sub-structure, a ventilation cavity and insulation. The unique characteristic of a ventilated façade is that heated air rises in the ventilation cavity drawing cool air from below and venting hot air at the top.
This natural airflow removes moisture away from the inner wall and moderates temperature. Rainscreen Duo Slab® is a dual density insulation board comprising a robust outer surface which offers improved weather resistance and simplified installation.

ThermalRock S

ThermalRock S (Slab) is an insulation slab designed for general insulation purposes. It is manufactured in a wide variety of thicknesses and densities to suit most requirements, suitable for general application in residential, commercial and industrial buildings. ThermalRock S offers a wide range of multipurpose usage in metal deck roofs, attics, ceilings, general partition application where no load-bearing insulation slabs are required. It may be used for metal stud partitions for easy installation where no sagging or slumping of the insulation product will occur.

Fire Duct Systems

The Fire Duct System (previously Conlit® Ductwork Systems) provides fire protection and thermal and acoustic insulation for circular and rectangular steel ductwork. Three product derivatives are available within the Fire Duct System range:

  • Fire Duct Slab – for rectangular ducts
  • Fire Duct Section – for circular ducts between 60mm and 356mm diameter
  • Fire Duct PSM – for circular ducts greater than 406mm diameter.


  • Up to 2 hour fire protection for stability, integrity and insulation
  • Fully certified to BS476-24 (duct types A and B)
  • Can be installed on standard DW144/42 ductwork
  • Multi-purpose insulation: fire protection, acoustic and thermal
  • Choice of fixing options

SpanRock M1

SpanRock M1 is specially developed to be used as a core component in sandwich panels. It can be obtained either in slab or in lamella form to suit the requirement of sandwich panel manufacturers.