We are the suppliers and executors of the Aerolite Light weight Calcium Silicate Ceiling Tiles in Grid System, which is incombustoble, water resistent (100% RH) , Densified Edges, Bio-safe Materials, termite resistance comes in 600x600mm with different choice of designs and finishes, NRC ranges from 0. 1 to 0. 75 (Depending on the product) . Easy to install. . . .