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Stone wool, non-hygroscopic tile with enhanced durability.

Features and benefits:

  • Class A sound absorption and Class A1 fire safety.
  • Attractive to the visible side, with a white, specially coated surface.
  • Enhanced durability and dirt resistance.
  • Easy to clean with vacuum, damp cloth, low pressure foam cleaning, dry steam cleaning and high pressure cleaning.
  • Hygienic; stone wool provides no sustenance to micro-organisms.
  • Provides up to 100% humidity resistance.
  • Includes sealed edges.
  • Can be fully recycled.
  • Resistant to diluted solutions of ammonia, chlorine, quaternary ammonium and hydrogen peroxide.
  • Complies with standards for cleanroom classification (ISO Class 5).
  • Manufactured in accordance with EN 13501-2.


Suitable for use in highly controlled environments, including:

  • Industry.
  • Catering.

Consult manufacturer for details on recommended installation systems.

Related literature

The following content references this product:

Standard product features

Surface finish:

  • Visible side: White, specially coated surface.
  • Rear side: Back fleece.

Sound absorption:

To ISO 11654: 1.00 αw. Class A.

Reaction to fire:

To BS EN 13501-1, Class A1.

Fire performance:

Some sizes and edge details of Rockfon® Hygienic™ Plus can be used with various Chicago Metallic grids and Rockfon systems to create a 30 minutes fire protecting ceiling in accordance with BS 476 Part 21 and Part 23. They can also be used to create a 30 minutes fire protecting membrane ceiling (integrity only) in accordance with BS 476 Part 22 – consult manufacturer for details.

Humidity resistance and dimensional stability:

  • Dimensionally stable, even at humidity levels of up to 100% RH.
  • No visible deflection in high humidity.

Light reflection:



Rockfon tiles with A edges can be demounted.


  • Vacuum: The surface can be vacuum cleaned with a soft brush attachment.
  • Damp cloth: The surface can be cleaned using a damp cloth or sponge with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine (this may render the surface slightly shinier, so a thorough clean is recommended).


Awarded the Finnish M1 emission classification for building materials and the Danish Indoor Climate Label for low VOC emission products.

Compatible edges, grids and systems:

  • A24: Use with Chicago Metallic T24 2890 Click Grid to create Rockfon® System T24 A™ or Chicago Metallic T24 D2890 Click Grid to create Rockfon® System T24 A ECR™.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-80-40/330 Mineral fibre infill units

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying





+44 (0)208 2227457

Product reference

Rockfon® Hygienic™ Plus

Module size

[600 x 600 x 20 mm]
2.3 kg/m².
[600 x 600 x 40 mm]
3.3 kg/m².
[1200 x 600 x 20 mm]
2.3 kg/m².
[1200 x 600 x 40 mm]
3.3 kg/m².



Manufacturer details

14th Floor,
Chiswick Tower,
389 Chiswick High Road,
London, W4 4AL
Tel +44 (0)208 2227457
Fax +44 (0)208 2227458
NBS Plus
NBS National BIM Library