Painted Wall with Vapour Causing Bubbles in Textured Paint Finishes

Painted Wall with Vapour Causing Bubbles in Textured Paint Finishes

It was disappointing to see this newly re-painted wall with bubbles in it. Water vapour causing bubbles in the newly textured paint finishes. The wall forms part of the building structure and a garden bed has been placed behind it. Failure of the garden beds waterproofing is the cause bubbling paint. The video provides evidence where the paint is not adhering.

Some Causes of  Air Bubbles in Textured Paint Finishes

1. Painting when surface contains to much water.
2. The wall has hydrostatic pressure on it.
3. Incorrect paint – doesn’t breathe enough
4. Physical damage to the paint allowing water to enter behind the paint
5. Sun damage allowing moisture to enter.
6. High rainfall and humidity.
7. Lack of adhesion of the paint commonly caused by dirt underneath the paint, failing to prime a wall.

How to Prevent Delamination of Paint Finishes

Correct Preparation and Product selection

New work –

When painting ensure the surface is clean, efflorescence free and completely dry. Prime or seal as is specified.

Where hydrostatic pressure exists. This where water penetrates the masonry wall to be coated. Clean and remove efflorescence using Efflorescence Rid. Wash off all cleaning materials from the wall. While the wall is still wet. Apply the recommended waterproof membrane from the Maxseal Family

Repainting – Pressure wash to remove loose old paint. Sand any rough spots  Remove any efflorescence using Efflorescence Rid. Rinse wall and treat as specified.

If you’re painting a wall that has hydrostatic pressure behind it.
Then please
Treat all areas showing moisture
The whole wall should be treated (recommended).

Looking for a quick fix to protect against water vapour then use of then the Clear Concrete Sealers 

You can check out the benefits of SealTight

Below is range of waterproofing products would be helpful. Where surfaces are not easily dried.