AEROBRICKS-Perforated bricks are developed as an alternative to redclay bricks for Internal External Walls for all type of building , specially in South East facing walls , Roof Terrace Insulation. The raw material used in the construction of such bricks are basically fly ash, cement, lime, gypsum, stone dust etc. br SALIENT FEATUES : br Accurate in size : Less wastages of mortar , fast application br Hollow Volume : (containing a pattern of small holes through the brick removing no more than 25 of the volume) .