1. Moisture Intrusion

One of the top reasons paint peels is moisture getting behind the paint layer. When water seeps into the siding—whether from rain, high humidity, or plumbing leaks—it causes the paint to lose adhesion and eventually peel away. This is especially common around windows, doors, and anywhere flashing may have failed.

Tip: Check for gaps in caulking or cracks where water might be sneaking in.

2. Poor Surface Preparation

Paint needs a clean, dry, and properly primed surface to stick. If the surface wasn’t cleaned or sanded before painting—or if old, flaky paint wasn’t removed—new paint won’t adhere well and may start peeling prematurely.

Tip: Always wash and scrape surfaces thoroughly before applying fresh paint.

3. Incompatible or Low-Quality Paint

Not all paints are created equal. Using low-quality paint or the wrong type of paint for your siding material (wood, vinyl, aluminum, etc.) can lead to early failure. For example, applying latex paint over oil-based paint without proper priming can cause peeling in no time.

Tip: Use high-quality, exterior-grade paint that’s compatible with your siding material and climate.

4. Weather Extremes

Fluctuations in temperature and humidity can wreak havoc on painted surfaces. In regions with hot summers and cold winters, siding expands and contracts constantly—eventually leading to cracking and peeling of rigid paint layers.

Tip: Choose flexible, weather-resistant paints that can move with your siding.

5. Sun Exposure

UV rays from the sun can break down paint over time, especially on south- and west-facing walls. This causes fading, chalking, and eventually, peeling.

Tip: Repaint exposed areas more frequently or use UV-resistant paint formulas.

6. Improper Application

Painting in the wrong conditions—too hot, too cold, too humid—can prevent paint from curing properly. This affects how well it bonds and how long it lasts.

Tip: Always follow manufacturer guidelines for temperature and drying times.

What Can You Do About It? Call Bright Corp 617-212-1599

If you’re already seeing peeling paint, the best solution is to identify the root cause, address any underlying moisture or structural issues, and then repaint with proper surface prep and high-quality products.

In some cases, especially when moisture damage or mold is present, it may be worth bringing in a professional for a full inspection and repair.