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Rockwool ProRox Slabs

Water repellent and rot proof rigid, semi rigid and flexible Stone wool insulation slabs.

Suitable for installation in floor, wall and roof constructions, around heating and cistern tanks; offering excellent thermal, acoustic and fire insulation. Available as plain (un-faced) slabs or with aluminium foil, black or white glass fleeces applied to one side.

Rockwool ProRox Slabs are CE and Key marked in accordance with BS EN 13162.

Non-combustible, achieving a classification of A1 in accordance with BS EN 13501-1.

Rockwool insulation products do not contain blowing agents with an ozone depletion potential (ODP) or global warming potential (GWP), are CFC-HCFC-HFC free and 97% recyclable. They will not react with metal components or cause loss of plasticiser from PVC cables and pipes.

General information
Uniclass 2015
Pr_25_57_06_50 Mineral fibre slab insulationPrimary

H31/254 Acoustic insulation

H43/234 Gutters

H51/110 Cladding to

K10/215 Suspended ceiling system

K10/50 Suspended ceiling on metal framing

K11/795 Wall lining on metal framing

K11/796 Metal stud partition system

K20/150 Battened timber board floating floor

K20/20 Battened timber board floating floor

K21/120 Battened wood flooring

K21/130 Battened wood floating floor

K21/140 Battened wood laminate flooring

K40/10 Suspended ceilings

K40/105 Suspended ceiling system

K40/285 Insulation

K40/55 Insulation

K45/13 Suspended ceiling system alterations

P10/140 Insulation fitted between rafters

P10/15 Insulation fitted between rafters

P10/170 Insulation to loft access hatches

P10/180 Insulation to water cisterns

P10/190 Insulation fitted between studs

P10/20 Insulation to loft access hatches

P10/217 Insulation slabs fixed to backing wall

P10/240 Insulation fitted between floor joists

P10/25 Insulation to water cisterns

P10/250 Insulation supported between floor joists

P10/40 Insulation fitted between studs

P10/42 Mineral wool insulation slabs fixed to backing wall

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

T90/390 Feed and expansion cisterns

T90/47 Feed and expansion cisterns

Specification data - Mineral fibre slab insulation
Product Reference

Rockwool ProRox SL 920

Also known as Rockwool RWA45.

Rockwool ProRox SL 930

Also known as Rockwool RW3.

Rockwool ProRox SL 950

Also known as Rockwool RW4.

Rockwool ProRox SL 960

Also known as Rockwool RW5.

Rockwool ProRox SL 980

Also known as Rockwool RW6.










Plain (un-faced)

Aluminium foil face

White glass fleece faced

Black glass fleece faced

Standard product features

Slab size:

Plain (un-faced):1200 x 600mm, Faced: 1000 x 600 mm.

Product Options


  • ProRox SL 920: 45 kg/m³.
  • ProRox SL 930: 60 kg/m³.
  • ProRox SL 950: 80kg/m³.
  • ProRox SL 960: 100 kg/m³.
  • ProRox SL 980: 140 Kg/m³.

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