Acoustic Infill
Flat Roof Solutions

Acoustic Infills

Keep the noise down.

Making sure metal roof deck profiles have the right acoustic performance will reduce the likelihood of noise disturbing neighbours and ensure compliance with acoustic regulations and requirements. ROCKWOOL Acoustic Infills are a specially engineered flat roof insulation, made to fit the troughs of all metal roof deck profiles and deliver significant levels of sound reduction.


ROCKWOOL Acoustic Infills are specially engineered into trapezoidal shapes that can be suited to fit all types of perforated metal roof deck profiles. Ideal for use in flat roof areas such as over convention and sports halls, manufacturing plants, or corridors, this product has an optimised density, to absorb sound.

Acoustic Infills have been designed and tested for use with ROCKWOOL HARDROCK® roof systems as a solution to E3 and E4 of the Approved Document E, achieving Class C sound absorption in accordance with BS EN ISO 11654.

  • Excellent acoustic absorption – in conjunction with HARDROCK Multi-Fix, ROCKWOOL Acoustic Infills have a Class C rating which will keep noise levels to a minimum.
  • Precision manufactured – pre-cut to suit metal deck profiles, Acoustic Infills are manufactured to with expert cutting technology to have the most precise dimensions for application to perforated metal deck profiles.
  • Save time on-site – the precision in the trapezoidal shapes, combined with the ease of application directly within the deck troughs, ensures a quick and efficient install.
  • Looks as good as it performs – a tissue facing gives it enhanced aesthetic appeal.

Product Properties

Compliance BS EN 13162, ISO 14001, BS EN ISO 11654
Reaction to fire Produced from non-combustible insulation
Water vapour resistance 5.9MNs/gm

Product range and ancillaries

Item number External item number Type Description Country Thickness (mm) Length (mm) Packs Per Pallet
241866 241866 Tata D46 Tissue faced (White) UK 42 1200 364
226609 226609 Tata D60 Tissue faced (White) UK 55 1200 294
241370 241370 Tata D100 Tissue faced (White) UK 95 1200 156
226611 226611 Tata D135 Tissue faced (White) UK 130 1200 99
226646 226646 Tata D159 Tissue faced (White) UK 150 1200 91
257632 257632 Tata D153 Tissue Faced (White) UK 150 1200 84
226647 226647 Tata D200 Tissue Faced (White) UK 195 1200 60
211155 211155 Euroclad MW5 SM Tissue Faced (White) 30 1200 259
256679 256679 Joris Ide D85 SM Tissue Faced (White) 79 1200 182

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