
Surface Prep
How to Prep Interior Walls Before Painting
Prepare interior walls by first checking for moisture, loose material, and hazardous old coatings; resolve those issues before creating dust.
Paint can change color; it cannot persuade grease, loose coating, or active moisture to become a sound substrate. Preparation guidance stops at hazardous or structural conditions and routes them to the appropriate current rules and professionals.

Prepare interior walls by first checking for moisture, loose material, and hazardous old coatings; resolve those issues before creating dust.