About Rockfon® Koral™Rockfon® Koral™ features an NRC of 0.85, due to the inherent performance benefits of its stone wool core. Rockfon® Koral™ features low embodied carbon with GWP as low as 0.190 kg CO2 – eq/ft2 / 2.04 kg CO2 – eq/m2. The lightly textured white surface adds simple elegance to interior spaces, and the performance of stone wool offers sag, mold and mildew resistance.
Smooth, lightly textured surface
High Acoustic Performance 0.85 NRC
Class A fire performance Achieves 0 Flame Spread and 5 Smoke Developed Index per ASTM E84 with no added fire retardants
Inherently Mold and Mildew resistant – no added antimicrobials Tested per ASTM D3273 and C1338
Cleanable: vacuum or damp cloth
30-year limited product warranty