Usually constructed using plastic, pvc or polyester to any required sizes and number spans with steel frames
A flat arch or tunnel greenhouse, commonly known as a high tunnel or hoop house, is a versatile structure designed to extend the growing season and protect crops from adverse weather conditions. Featuring a simple, curved frame—typically constructed from metal hoops—and covered with polyethylene film, these greenhouses allow farmers to cultivate vegetables, fruits, and flowers directly in the ground. While they generally lack artificial heating, their design effectively moderates temperature and humidity, creating a favorable microclimate for plant growth. Additionally, roll-up sides are often incorporated to facilitate natural ventilation and climate control within the structure. citeturn0search1turn0search11
