The retractable hangover is a structure that is able to respond to different types of environments by providing shade from the harsh UV rays and protection from the rain as well. The structure is able to extend over the porch and also retract back. 

On the top of the retractable hangover is aloy installations which is a type of metal that is able to respond to different types of climate. If it were to sense a cold environment then it would close itself up so that the inside of the porch would be protected by the cold weather. If it were to also sense a more warmer climate than it would open itself up to allow ventilation which would provide shade and a cooler area on the porch as well. The structure would benefit the users because it allows them to enjoy a good view on the porch while staying protected from super hot, cold, or rainy climates.