• Manifestations
  1. In the early stage the bubbles are formed
  2. In later stages the bubbles can break and create cracks
• Causes
  1. Low quality paint
  2. Very old latex paint
  3. Rolling paint too rapidly
  4. Roller with inappropriate nap length
  5. Porous surface
• Solutions
  1. High quality paints
  2. Use semi gloss or gloss paints with a roller which has a short nap
  3. Appropriate preparation