Chalky Exterior Paint
Chalky paint on exterior walls is caused by the paint on the surface deteriorating and breaking down over time most commonly by morning and afternoon sun exposure.
The surface of the paint coating breaks down as it ages and can appear chalky and when you wipe down the wall with your hand you can see the chalky paint residue on your hand.
Once a paint coating has begun to show signs of chalking then it will rapidly decay much faster.
Usually if you find it in its early stages we can clean it off using a stiff broom and detergent along with a pressure clean of minimum 3000psi.
If the paint is too deteriorated then we must apply a pre coat sealer to bind the chalky paint so it returns to a sound substrate.