Product Catalog

Rockfon Stone Wool Tile - Sonar


Rockfon's Sonar tile features an elegant, lightly-textured, white surface. It features high sound absorption (NRC = 0.90 - 0.95). It has high fire performance and high light reflectance (LR = 0.86). Sonar is available in square lay-in, tegular and concealed edge designations, allowing for optimal design freedom. In addition, Sonar is available in a variety of sizes and formats, including planks. This tile is best used in open-plan offices, single offices, classrooms, corridors, meeting rooms, foyers, lobbies, retail, waiting rooms and multifunctional rooms.


​Stone wool (Mineral Wool) ceiling tiles.

Surface finish:

Factory painted glass scrim.

Fire performance:

Surface burning characteristics: UL723 (ASTM E84) Flame Spread Index 0, Smoke developed Index 0 (UL Labeled). CAN/ ULC S102 Flame Spread Index 10, Smoke developed Index 5.


Type XX - Stone wool base with membrane-faced overlay, Pattern E.

Sag resistance:

ROCKFON ceiling tiles are dimensionally stable even at high humidity levels of up to 100% relative humidity and can be installed at all temperatures ranging from 32 °F to 104 °F. No acclimatization is needed. ROCKFON ceiling tiles can be installed during the very early stage of the build (when windows are not fully sealed) without any risk of deflection of the tiles. The low weight, stability and nonhygroscopic character of ROCKFON tiles will limit the weight of the fully installed ceiling whilst retaining its declared properties even when applied in infrequently heated and unheated rooms without condensation.


The product fulfils requirements for low emitting acoustic ceiling tiles and meets the California Department of Health Services Standard Method V1.1 (February 2012) “Standard method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers (Section 01350).” Selected potential applications: LEED, CHPS and CALGreen. All ROCKFON stone wool acoustic ceiling solutions are GREENGUARD Gold certified to GREENGUARD standards for low chemical emissions into indoor air during product usage.

Hygienic properties:

ROCKFON ceiling tiles are made of water repellent stone wool. Stone wool has no nutritional value and therefore it provides no sustenance to harmful micro-organisms.


The surface can be vacuum cleaned with a soft brush attachment.  It can also be cleaned using a damp cloth with cold or warm water (max. 104 °F) with a slightly alkaline detergent (pH between 7 and 9) without alcohol, ammonia or chlorine. Cleaning with a sponge or damp cloth may render the surface slightly shinier and we therefore recommend cleaning the whole surface evenly for best results.


30-Year Limited Product Warranty. See


ROCKFON stone wool ceiling tiles are primarily made from abundantly available basalt rock and contain up to 42% recycled materials. ROCKFON products supplied in North America are produced in ISO9001/ ISO14001 certified factories.