Moisture barrier over flat paint


Is there anything you can put over flat paint to help control a moisture issue? The interior paint is a flat and where a plastic picture/sign has been hanging there seems to be moisture getting trapped behind it and is causing mildew? Hoping to not have to re paint the walls.. Thanks

One Response

  1. It’s not really trapping moisture, it is blocking light and causing a local chemical change in the paint over a long time… washing your walls once in a while will prevent this, but now since you let it go so long, you’ll best have to repaint the whole wall…

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