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A white, durable and specially treated ceiling tile for environments where hygiene and cleanability are important.

Features and benefits:

  • Class A sound absorption and Class A1 fire safety.
  • Attractive to the visible side, with a microtextured white finish.
  • Can be used in a variety of applications.
  • Surface withstands cleaning from pressure.
  • Hygienic; stone wool provides no sustenance to micro-organisms.
  • Can be fully recycled.


Suitable for use in the following areas:

  • Toilets/ wet rooms.
  • Kitchens.
  • Fitness centres/ locker rooms.
  • Swimming pools.

Consult manufacturer for details on recommended installation systems.

Standard product features

Surface finish:

  • Visible side: Smooth white painted fleece.
  • Rear side: Back fleece.

Sound absorption:

To ISO 11654: Up to 1.00 αw. Class A.

Reaction to fire:

To BS EN 13501-1: A2-s1, d0.

Fire performance:

Some sizes and edge details of Rockfon® Hygienic can be used with various Chicago Metallic grids and Rockfon systems to create a 30 and/ or 60 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.
  • As the humidity inside a building has no influence on Rockfon ceiling tiles, the ceiling can be installed at all temperatures ranging from 0-40ºC. No acclimatisation is necessary.
  • Retains superior properties even in infrequently heated and unheated rooms.
  • Precautions should be taken to avoid condensation risks.
  • In accordance with BS EN 13964, predominantly classified as class 1/C/0N. Certain module sizes are class 2/C/0N.

Light reflection:


Thermal conductivity:

Thermal conductivity (K-Value): 37 W/mK.


Rockfon tiles with A edge can be demounted.


  • Vacuum: The surface can be vacuum cleaned with soft brush attachment.
  • Damp cloth: The surface can be cleaned with wet 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).
  • May also be foam cleaned up to 52 times a year by spraying foam onto the surface and wiping off.
  • High pressure cleaning, up to 52 times a year. Where high pressure cleaning is required the Hygienic tiles can be clipped into the grid and sealed with a silicone sealant containing fungicide.


Stone wool is an inorganic material which is not attacked by rot, fungi or bacteria. This makes for a cleaner and healthier indoor environment.


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™.

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™

Module size

[600 x 600 mm]
[1200 x 600 mm]

Tile thickness

[20 mm]
[40 mm]

Acoustic fireboxes

[Not required]
[700 x 700 x 200 mm]
[1300 x 700 x 200 mm]

Manufacturer details

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