Armstrong Dune Supreme Ceiling Tile

Features: Colour: White Edge detail: Board, Tegular or Microlook. Module (mm): 600 x 600 or 1200 x 600 x 15. Sound absorption (alpha w): 0.55. Sound absorption European Classification: D. Sound absorption (NRC): 0.50. Sound attenuation Dncw (dB): 35. Sound Reduction Index (Rw): 17. Light reflectance (%): 82. Humidity resistance (RH%) 99. Thermal conductivity (W/mK):0.06. Fire reaction: EEA Euroclass A2-s1,d0.