A tile that brings the warm appearance of wood, yet has acoustic and fire resistant properties which exceed those of wood.

Suitable for use in offices, show rooms and lobbies where a natural look is required.

General information

Uniclass 2015

Pr_35_93_13_53 Mineral fibre infill unitsPrimary


K40/10 Suspended ceilings

K40/115 Unit/ modular suspended ceiling system

K40/265 Infill units

Specification data - Mineral fibre infill units

Product Reference

Rockfon® Ligna™

Edge detail




Dark beech, 715.003

Classic beech, 715.001

Light beech, 715.002

Acoustic fireboxes

Not required

700 x 700 x 200 mm

1300 x 700 x 200 mm

Standard product features

Module size:

600 x 600 mm.


20 mm.

Reaction to fire:

To BS EN 13501-1: A1.

Fire performance:

  • Can withstand more than 1000°C for more than 120 minutes without melting.
  • To BS 476-21 and -23, 30 minutes.
  • To BS 476-22, 30 minutes (integrity only).

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.


Rockfon tiles with E edge can be demounted.


Can be vacuum cleaned with a soft brush attachment.


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:

  • A15: Use with Chicago Metallic T15 2790 Click Grid to create Rockfon® System T15 A™.
  • A24: Use with Chicago Metallic T24 2890 Click Grid to create Rockfon® System T24 A™.

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