About STAR 15mm
A 15mm mineral tile with a fine random perforation pattern, used widely in offices, retail and meeting rooms. Available in board and tegular edges plus K2C2 planks for semi-concealed layouts.
Key performance
| Thickness (mm) | 15 |
|---|---|
| Weight | 3.6 - 3.8 kg / m² |
| Sound absorption | αw = 0.60 as per EN ISO 11654 - Class C |
| Sound attenuation | Dn,f,w = 34 dB as per EN ISO 717-1 |
| Sound reduction | Rw = 18 dB as per EN ISO 717-1 |
| Fire reaction | Euroclass A2-s1, d0 as per EN 13501-1 |
| Light reflectance | 88% |
| Humidity resistance | 95% RH |
Source: STAR 15mm datasheet, 07/2026. Figures quoted exactly from the manufacturer's datasheet; confirm with Knauf Ceiling Solutions before specifying.