Greenhouses are vulnerable to overheating from spring until autumn. Without protection from heat, few plants are likely to survive unharmed when subjected to high levels of heat and dry atmosphere
Removing the shading manually has the equivalent issues as applying it; namely the safety concerns of being on a glass roof and the time it takes to do even small areas.
The drone covers the same space in less time than it takes to apply the shading, delivering quick results without days of dangerous hard work on the glass.