Extension of Regular rooms

• How does paint and drywall work?
  • Because paints age you’ll have to paint the whole house again for a consistent colour
• Acoustics
  • What can be done to reduce echoes?
  • Thin walls?
• How to clean holes in dry wall
  • Tiny holes
  • Big dents
• Aren’t separators expensive?
  • I don’t think they help with acoustics though, just a divider