The playhouses are constructed with the help of ultraviolet plastic sheets so that they may last for more than 5 years. The structure is covered with a 1501 m thick plastic sheet. The structure is prepared with bamboo or iron pipes. Iron pipe structure is costly but more durable than bamboo. Generally, the length of the polyhouse is 25-30 feet, and the width is 4-5 feet. The direction of the polyhouse is always East to West so that the maximum sunshine is available. The house should not be constructed in the shade. The size of the polyhouse may differ depending on the necessity. The polyhouses are kept cold or hot depending upon the season.