Paint peeling is a common issue that affects many buildings and structures. It is common on drywall and old plaster ceilings, but you can also notice it along with the window frames, wooden decks, trims, bathrooms, sidings and more. It also affects the household's health due to mold and mildew growth and chipping of painted walls. Therefore, it is important to understand the causes of paint peeling and how to prevent them.
What Causes Paint on Walls and Ceilings to Peel After Being Painted?
Moisture
Moisture is one of main causes peeling paint. it can seep into the walls through cracks, leaks, or condensation, and results in bulging, cracking, and flaking off color from the walls and ceilings. Areas of the home where moisture is prevalent, such as bathrooms, kitchens, and laundries, are highly susceptible to peeling paint.
Poor preparation
How you apply the paint can also affect how long it lasts and looks. Some common mistakes that can lead to paint peeling include: applying coats of paint that are either too thick or too thin, painting on a dirty, wet, or glossy surface, painting in extreme temperatures or humidity, or painting without proper preparation or priming. These errors can prevent the paint from bonding well with the surface and cause it to peel off easily.
Many different coats on the same surface
Using different types of paint on the same surface can lead to peeling. For instance, applying latex paint over areas previously painted with oil-based paint will cause peeling. It's essential to know the type of paint previously used and choose the next layer accordingly. Mixing incompatible paint types can also result in peeling. To prevent peeling, make sure to use the same type of paint on each layer.
Too many layers of paint
Applying too many layers of paint, especially on ceilings, can lead to peeling due to the weight of the paint pulling it down over time. Thick layers of paint don't adhere well, particularly if there are already multiple coats, causing them to eventually detach. It's crucial to apply paint in thin, even layers to prevent this issue, or seek professional help if unsure about the process.
Expired paint
Paints, like other chemical products, have an expiration date, and signs of expiration include separation, mold growth, or freezing. Additionally, high temperatures can accelerate deterioration. Inferior paint brands may lead to issues like cracks, peeling, and bulges on walls, while expired paints can affect adhesion and texture. Proper research and storage are key to avoiding these problems and achieving the best outcomes.
How to Fix Paint Peeling?
- Remove the peeling paint: Remove any loose or peeling paint using a scraper or wire brush. Sand the area lightly to smooth the edges.
- Repair any holes or cracks: You should fix the cracks and holes before applying a new layer of paint. Using a putty knife such us Unimix SF, apply wall putty to fill the entire hole or crack. Then, smooth it so it’s level with the wall surface. Allow the filler to dry completely.
- Primer and paint the wall
