About AMF THERMATEX Alpha One
A 24mm white mineral tile with the highest absorption rating in the Alpha family, for spaces where speech clarity is the priority. Installed in an exposed 24mm or 15mm grid with board or tegular edges.
Key performance
| Thickness (mm) | 24 |
|---|---|
| Dimensions (mm) | 600 x 600, 625 x 625, 1200 x 600 |
| Weight | 4.0 kg / m2 |
| Sound absorption | αw = 1.00 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 |
Source: AMF THERMATEX Alpha One datasheet, 09/2026. Figures quoted exactly from the manufacturer's datasheet; confirm with Knauf Ceiling Solutions before specifying.