Greenhouse building materials. growers supply offers a wide range of greenhouse building materials to help with building a greenhouse or hoop house, as well as repairing your commercial greenhouse. we have greenhouse building supplies such as polycarbonate panels, greenhouse film and plastic, as well as corrugated plastic.. There are different types of greenhouses available based on shape, construction, material, and ventilation. each greenhouse has own advantage. different types of the greenhouse are designed to according to match specific needs. generally, in india sawtooth natural ventilated greenhouse is used for cut flower, vegetable production purpose.. We provide naturally ventilated greenhouse structure with a standard material as per government norms and specification. special features