The clear polyethyelene roof is ideal for protection from winter cold and summer heat. The clear roof can be left closed during cold days while still allowing good light transmission, and helps prevent overheating of soil temperatures on sunny days. White polypropylene can be used for winter cold protection and summer shade. On hot sunny days, the white roof provides increased shade and cooling for low light/ low temperature crops. Black shade cloth is used for low light crops, which do not need protection from cold. Black fabric is also used for photoperiod control. Aluminized fabrics provide heat retention, shading and cooling. With these systems, users are able to operate up to 90,000 square feet (8,350 m2) of roof area using a single motor. Designs are available for one or two separate roof systems, and can be designed to handle up to 120 mph winds.
Searching for the best-performing excavator? Your search ends here. We tested the Volvo EC350E and EC380E against a leading competitor in three different tests: trenching, truck loading and lifting capacity at reach. The results show a 20% difference in cost-per-ton, a 15% difference in tons-per-hour and a 12% difference in both operating costs and lifting capacity. See the results and put an end to your search for the best excavator.