| Practical Sound Absorption Coefficient (αp) | ||||||||||
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| Thickness | Suspension height | 125Hz | 250Hz | 500Hz | 1000Hz | 2000Hz | 4000Hz | Sound absorption class | αw | NRC |
| 50mm | 200mm | 0.70 | 0.85 | 1.00 | 1.00 | 1.00 | 1.00 | A | 1.00 | 1.00 |
| 50mm | 200mm | 0.70 | 0.90 | 1.00 | 1.00 | 1.00 | 1.00 | A | 1.00 | 1.00 |
Sound absorption is measured in accordance with ISO 354.
Sound absorption data αp, αw and absorption class are calculated in accordance with ISO 11654. Sound absorption properties of islands and baffles are quantified by the equivalent sound absorption area Aeq expressed as m² per item.
| Reaction To Fire | A1 | |
|---|---|---|---|
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Reaction to fire is classified in accordance with EN 13501-1.
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| Hygiene | Stone wool provides no sustenance to microorganisms | |
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Stone wool provides no sustenance to the following microorganisms tested in accordance with JIS Z 2801:2000 and ASTM C 1338-96: – Escherichia coli – Staphylococcus aureus – Methicillin-resistant staphylococcus aureus (MRSA) – Stachybotrys chartarum – Penicillium brevicumpactum – Alternaria tenuissima – Aspergillus niger – Sporobolomyces roseum – Rhodotorula rubra
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| Environment | Fully recyclable stone wool | |
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| Thermal Insulation | Thermal conductivity: λD = 40 mW/mK Thermal resistance: 50 mm R = 1.25 m2K/W | |
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The thermal conductivity of products with a thickness ≥ 30mm is measured in accordance with EN 12667 and expressed in mW/mK. Thermal resistance is expressed in m²K/W.
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We provide customers with a complete acoustic ceiling system offering, combining sound absorbing ceiling tiles and wall panels with suspension grid systems and accessories.
