Blue Porch Ceilings – The history behind the tradition of painting porch ceilings blue. Homeowners have been adding a touch of blue paint to their porch ceilings for decades — and its not just for a pop of color. In the South Carolina Lowcountry (where this trend first began), a turquoise, periwinkle or powder blue porch ceiling is said to extend daylight as dusk begins to fall, and many even believe that it helps keep bugs away. However, in the past the main reason people chose pale blues …