I go along with Dave, there is a risk that if it is all insulated and re-boarded over inside with some sumptious exotic wood finish, plus of course the super LED strips, WiFi, stereo, TV and Satellite, Telephone, kettle etc like mine then SWMBO will definately make a compulsory takeover over because it would be perfect to do coffee mornings or Pilates in.
Go on Dave, keep it basic, cold/hot and uninviting and keep females out….
The voice of experience!!!