Series I is designed for Mediterranean climate. They are greenhouses of 4 meters wide, that having two doors and being lower, the heat comes out with greater fluidity. The arches are distributed every meter and 6 transverse ones also separated 1 meter that make them very robust and resistant.
The A series polytunnels have double doors, one in front and one behind, as well as windows above them. They are 6 meters wide, this together with its good ventilation make it ideal for growing vegetables.