if it wont peel off try a heat gun or hair dryer to make it peel off
Did it have adhesive on it? Also, what is the material on the columns. . . paint, stucco, wood?
The columns are painted. They are in the afternoon sun so the plastic must have melted on them. I'll try the dryer later. Thanks.
If you could wrap some ice around it (at night maybe?) and get it really cold it might chip off???? Also depends what type plastic/thickness and how it got there..there are so many types with different attributes difficult to say.
Oh, if it melted on because of the sun...heating it will only make it more gooey. May need to sand it off.