Today, our building condition is allowing indoor environments to breed microorganisms such as mould fungus, algae etc., which causes harm to human bodies. Man spends about 60 to 90% of his life in the building; about 60 to 65% of energy produce is utilized in the building environment. 10 to 12% of water resources are consumed in the building sector. Thermal comfort, indoor environmental quality, energy & water efficiency, lighting and ventilation are the basic components of a green building. Environment friendly building materials are the prerequisite for green building.