A friend who lives in Atlanta got one of those retractable wings for a deck off the north side of their house. Used and crowed about it for a year. Quietly removed it and put up a pergola thingy – basically a row of 2 by somethings perpendicular (basically north to south) about 20 inches apart. The pergola really does a good job of lower the apparent temperature in the 3PM and later period when their most preferred usage time.