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DuoRock roofing board

Third party certifications:
  • BSI Kitemark

    Certificate type

  • QA Certificate

    Certificate type


Dual-density insulation boards for use under mechanically fastened membranes.

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+44 (0)1656 862621 www.rockwool.co.uk

A range of dual density stone wool roofing boards for use under mechanically fastened, cold adhesive and hot bitumen applied membranes.

Suitable for new build and refurbishment, DuoRock roofing boards are strong enough to bear normal foot traffic associated with installation and routine maintenance inspections of the roofing system.

Rockwool DuoRock is 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
Specification data - Mineral wool slab insulation
Product Reference

DuoRock roofing board


___ mm

Standard product features


1200 x 1000 mm.

Thermal conductivity:

0.038 W/mK.

Product Options


Available in 50–185 mm thicknesses.


  • Plain – For mechanically fastened single-ply membranes.
  • Tissue faced – For hot applied bituminous felts.
  • Scrim faced – For cold adhesive single-ply membranes.

Third party certifications
  • BS 476: Part 21. : 60 minutes load-bearing fire resistance (cert. 022a). LPCB approved
  • Factory Mutual: Approval Report no. JI 3010637 : Approved for Class 1 insulated steel deck constructions
  • BS EN 13501-1. : Class A1 Non-combustible (cert. 022e). LPCB approved
  • LPS: 1181:Part 1 EXT-A60 and EXT-B (cert. 022g). : LPCB approved
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