Rock Wool Ceiling Size: 1200 x 600mm or 600 x 600mmThickness: 15mm, 20mm, 25mm, 30mm and more Color: white and color Thermal Insulation: R>=0.5m²k/w Humidity: dimensionally stable with RH up to 95% at 40°C of temperature Fire-proofing: Class O (BS476 Part 6 & 7) Performances in a microbic environment: BEIYANG ceilings do not contain any element prone to microbic development. Light Reflection: White: > 85% Moisture Rate: <=0.8% (JC/T670-2005)Health and Environment: Green Label Test ASTM D5116-06 BEIYANG stone wools make it possible to reduce sound nuisance, energy consumption and the emission of greenhouse gases. The stone wool panels are made with fibers that do not contain any materials classified as carcinogenic. According to the International Agency for Research on Cancer, stone wools cannot be classified as regards their carcinogenicity to humans. We recycle our stone wools. Installation: BEIYANG panels are rigid and easy to handle and cut by means of a cutter. They are installed on n easy dismantle T15 or T24mm framework. We recommended providing air circulation between the room and the plenum in order to balance out any temperature and pressure differences on either side of the ceiling. Applications: Any project requiring a combination of all or some of these properties: decorative effect, resistance to humidity, noncombustibillity, and durability such as, offices, retail, hotels, restaurants and schools. The white 600# or S101# enhances visual comfort with its high light reflection coefficient. Packing: Exporting cartons