What are the five spots of paints on exterior house from waters Babylon?

It seems you're referring to the short story "The Waters of Babylon" by Stephen Vincent Benét. However, there is no mention of five spots of paint on a house in the story.

The story revolves around a young man named John, who is a "Priest of the Temple" in a future world where technology has been lost and society is trying to rebuild. He travels to the ruins of the "Dead Places" - the remnants of a technologically advanced civilization that collapsed due to some unknown event.

Perhaps you are remembering a detail from another story or film. Could you provide more context or details about the specific house or the paint spots?