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HardRock® Multi-Fix (DD)

HardRock Multi-Fix (DD) is a BBA-approved dual-density roofing insulation board suitable for various surfaces, including flat roofs. In addition to thermal comfort, it provides independently tested acoustic and fire resistance properties. This product is part of the RockFall System, please refer to the datasheet for details.

CTA_SbWPADownload datasheet
HARDROCK Multi-Fix (DD)
Flat Roof System - HARDROCK MULTI FIX HARDROCK UB34 ACOUSTIC INFILLS ACOUSTIC MEMBRANE

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Application(s)

  • Roof
  • Warm Pitched Roof
  • Flat Roof
  • Cold Pitched Roof / Loft

Product description

ROCKWOOL HardRock Multi-Fix (DD) is a high density, non-combustible thermal insulation board for flat roofs which has also been tested for acoustic applications and fire resistance.

HardRock Multi-Fix (DD) has been proven to improve the ability of lightweight flat roof systems to control both noise ingress and egress through the building envelope.

Suitable for areas subject to pedestrian traffic and frequent maintenance, the boards are compatible with all roof covering types, including torch-on, pour-and-roll, single-ply, EPDM, liquid applied and green roofs.

  • Euroclass A2-s1,d0 in accordance with BS EN 13501-1:2018 Reaction to Fire rating
  • Thermal conductivity 0.039 W/mK
  • BBA approved (Certificate No. 21/5878)
  • Tested in accordance with ISO 140-18 for rain noise