PVC or polyvinyl chloride is the most versatile plastic and the use of PVC pipes in buildings is becoming popular day by day. It is possible to substantially alter or change the properties of PVC resin by compounding techniques, i.e. the addition of other additives to PVC. Thus, it is possible to produce rigid PVC pipes. PVC is obtained by polymerization of vinyl chloride. Water, kerosene, acids and chemicals have no effect on PVC. Hence it is effectively useful for carrying sewage water and rain water. PVC pipes are faster to install than other materials. PVC pipes have an expansion coefficient of 0.001°C. PVC sheets of 0.1–12.5 mm thickness can be used as building construction materials. They can also be used as a waterproofing material.
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