Versatile thermal acoustic insulation slabs

ROCKWOOL’s ProRox Slabs are high quality resin bonded slabs that can be used for thermal, acoustic and fire insulation.

They are manufactured in a variety of thicknesses and densities to suit most requirements and CE marked to 2 standards: EN 13162 and EN 14303.

soffit head firestopping and intumescent gap seal


ProRox Slabs are suitable for many applications including thermal insulation for floors,walls, roofs and boiler rooms. Ventilation plant in all types of buildings, offshore platforms and ships, acoustic ceilings and partition panels. As well as oil, petrochem and power generation applications.

The product range consists of high quality resin bonded slabs in a variety of thicknesses and densities. Specialist sizes and thicknesses are available to special order. Black or white tissue and aluminium foil facings are available on 1000 x 600mm slabs.


* Excellent thermal, acoustic and fire insulation

* Water repellent

* Resists high temperatures (dependent on grade)

* Easy to handle and install

* Cost effective

* Durable



Non-woven mineral black or white tissue, aluminium foil are available in 1200x600mm. Please enquire for available thicknesses.



Standard sizes: See table below.

Thicknesses: 30, 40, 50, 60, 75 and 100 mm.
Plain slabs are produced 1200 x 600 mm.
All Foil Faced, Tissue Faced and WRG (water repellent grade) slabs are produced in 1000 x 600mm in size.

*25 mm is a non-standard thickness for ProRox SL 980 UK (formerly known as RW6)




All products, including the faced varieties, achieve a reaction to fire classification of A1 in accordance with EN 13501-1 and comply with the definition of noncombustible in accordance with all UK and Ireland Building Regulations.


ROCKWOOL stone wool products work 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.

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Fireus Ltd. Unit 6 Thetis Road, Lune Industrial Estate, Lancaster, LA1 5QP | Tel.01524 388898 | Fax.01524 383724