The bathroom a place of condensed moisture and hot, steamy showers. Paint is typically on the walls, unless there is a natural finished wood with a sealant. In the majority of bathrooms, there is a typical paint and primer finish.
Why Precipitation and Paint Peeling Are a Problem
Paint peeling can expose the surface underneath the paint. Remember, paint acts as a sealant to the bathroom walls and fixtures. When that paint begins to peel, the underlying wall is then vulnerable and unprotected from mildew and rot. These can lead to more problems than reapplying a coat of matching paint to the wall.
Preventing Precipitation and Humidity
First step, prevention of peeling paint. This can be accomplished by using the correct primer to make sure the wall does not peel in the future, or the wall takes a longer period of time to begin peeling. Most primers do not offer a guarantee on the seal. Any stain-preventing primer will do the job for the average bathroom.
Next, the culprit may be the lack of appropriate ventilation. Appropriate ventilation will help remove excess moisture that arises from steamy showers. Otherwise, the steam will accumulate as precipitation along the walls. A high powered bathroom outward ventilating fan can be the solution to a humid bathroom.
Fixing The Problem
In the event that paint peeling does occur, it is advisable to treat the affected area by reapplying primer and paint. Scrape off any peeling paint, sand the area if the paint is thin, apply another coat of paint, and then, apply another coat of primer. If the paint is thicker, then applying a joint compound will be necessary. After applying the joint compound, go through the steps again.
That should solve most of the problems in a bathroom that relate to humidity. Other than that, just look for the signs of paint peeling and treat them as necessary.