Why Would Paint Bubble Up On A Wall. (4) a roof leak that could be anywhere on a roof. We did a full, thorough sanding of all surfaces, full oil based primer on several occasions i've had walls that were prepped properly, but then bubbles started pulling away from the wall.
Painted walls that take on a bubbly appearance are the result of a loss of adhesion between the paint and the underlying surface of the wall.
It can take a few hours or even days for them to show up. Before you do so though, ask them to give you a bit of what they're. Bubbles can form if the surface being painted is moist when the paint is applied. A coat of paint applied when too many paint coats are added to a wall over the years, the weight of all the paint can cause is it the drywall wall or is my house just too dry or too wet and that is why the paint cracks and peels?