u/Upbeat_Downfall

Howdy, not a professional sign painter here. I'm doing a job on the west wall of a three-story building. I've been tasked to recover and refresh an old "Bull" Durham advertisement. The repainting of ghost murals aside, it's been raining off and on today and I'm wondering how long to wait before I go back to paint. The brick is well sealed and mortar has been recently tuck pointed. I just want to make sure I don't trap moisture under the paint (Ronan Bulletin Enamel). Any advice or condemnation is welcome. Thanks in advance!