Some pictures showing the walls with the gaps that are now filled. It took  a lot more filling mix and work than we thought. Still pretty neat, with bits of tires sticking out.. And what a roof!For the looks, it doesn’t need a ceiling.

Designs for tropical building often do include a ceiling, with a big open space between the roof and the ceiling, for air ventilation. I haven’t made up my mind yet. I like  this natural look.