About AMF THERMATEX Alpha
A 19mm white mineral tile aimed at rooms where reverberation control matters more than sound blocking, such as classrooms, open offices and corridors. It sits in a standard exposed grid with board or tegular edges and lifts out for void access.
Key performance
| Thickness (mm) | 19 |
|---|---|
| Weight | 3.3 kg / m² |
| Sound absorption | αw = 0.95 as per EN ISO 11654 - Class A |
| Sound attenuation | Dn,f,w = 29 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 |
| Clean room | ISO 4 as per EN ISO 14644-1 |
Source: AMF THERMATEX Alpha datasheet, 09/2026. Figures quoted exactly from the manufacturer's datasheet; confirm with Knauf Ceiling Solutions before specifying.