Paint Bubble Policy & Information
Paint bubbles are caused by many factors. One of the primary reasons is moisture vapors attempting to exit the substrate and being blocked by original layers of paint. You can confirm this by removing a bubble and looking underneath; you may see bare wood or the original layer of paint.
A recent paint job may cause even more bubbles because the barrier is thickening while the internal air is still trying to escape.
Why we do not recommend removing bubbles
Removing a bubble usually results in even more bubbles! The air pressure will push out regardless of surface intervention.
Removing bubbles 1 & 2 has resulted in a new one!Common Causes of Paint Bubbling
- Humidity from inside the house escaping through your walls
- Original paint was Lead-based
- Previous paint applications failed to stop humidity from penetrating the wood
- Flashing or Tyvek house-wrap has failed or does not exist
- Leaky roof, windows, or doors
The Solution
There are no easy solutions to exterior paint bubble issues. Because the source of evaporating moisture is nearly impossible to identify, the best course of action is to simply leave them alone.
Bubbles almost never burst open on their own, meaning the top layer remains intact and continues to protect your home's surface from the elements.