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SKU: 133134

85mm Rockwool Hardrock Multi-Fix (DD) Flat Roof Insulation - 1200 x 1000 x (1.2m²)


£42.98 Ex VAT
£51.58 Inc VAT

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Rockwool Hardrock Multi-Fix (DD) is designed for flat roof insulation applications. Made from stone mineral wool slab with a mineral-coated fleece facing, it is non-combustible - ideal for roofing applications where fire resistance is a primary concern. With a thermal conductivity value of 0.039 W/mK and excellent acoustic reduction properties, Rockwool Hardrock Multi-Fix is an effective thermal and acoustic  flat roof insulation. 

  • 85mm thickness
  • Suitable for use in flat roofing
  • Non-combustible board compatible with a range of waterproofing systems
  • Install over Rockwool Hardrock Underlay Slab
  • Euroclass A2-s1, d0 resistance to fire
  • Thermal Conductivity Rating of 0.039 W/mK

What Size is Rockwool Hardrock Multi-Fix (DD) 85mm ?

Rockwool Hardrock Multi-Fix measures 1000mm wide by 1200mm long (1.2m²) and is 85mm thick. 


Thickness: 85mm
Length: 1200mm
Width: 1000mm
Size: 85mm
Coverage: 1.2m²
Material: Fibre Cement
Thermal Conductivity: 0.039 W/mK
Reaction to Fire: Euroclass A2-s1, d0
Water Vapour Resistance: 5.9 MNs/gm
Download: Hardrock Installation Guide
Download: Hardrock Datasheet