Room-to-room sound insulation is measured in accordance with ASTM E1414. The measured value is reported as a Ceiling Attenuation Class (CAC).

Light reflection expressed in % is measured in accordance with ASTM E1477.

Rockfon ceiling tiles are dimensionally stable even at humidity levels of up to 100% relative humidity and can be installed at all temperatures ranging from 32 °F to 104 °F. They can be installed during the very early stage of the build (when windows are not fully sealed). Their lightweight yet stable non-hygroscopic character minimizes the final weight of the fully-installed ceiling.

*Rockfon® stone wool ceiling panels are dimensionally stable at up to 100% relative humidity.

The surface of some Rockfon products is specially treated to provide enhanced durability and dirt resistance.

Vacuum: The surface can be vacuum cleaned with a soft brush attachment.

Damp cloth: The surface can be cleaned using a damp cloth or sponge with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine. This may render the surface slightly shinier, so we recommend cleaning the entire surface evenly.

Microbiological class M1 fulfilling the requirements of Zone 4 (very high risk) defined by NF S 90-351:2013. Tested with:
- Methicillin Resistant Staphylococcus Aureus (MRSA)
- Candida Albicans
- Aspergillus Brasiliensis
The bactericidal and fungicidal effect of dry steam cleaning meets the requirements of NF EN 14561 (> 5 log10) and NF EN 14562 (> 4 log10), meaning the disinfection is very effective.

Clean room classification is measured in accordance with ISO 14644-1.

The thermal resistance of Rockfon products is measured in accordance with ASTM C518 and expressed in R-Value (hr.ft2.F/Btu) and RSI Value (m2k/W).

The surface of some Rockfon products is specially treated to provide enhanced durability and dirt resistance.