Not sure how your buildings are built over there so this may not apply. But an exhaust fan for the space between the ceiling and roof does wonders to cool a house after a hot day. Those attic spaces get crazy hot and hold the heat well after the sun sets and it keeps your house hotter longer. This won’t necessarily help with mid day heat, but help cool the living space as the sun goes down.
Yea that makes sense. You could wet the brick every so often to get some evaporative cooling going and keep that heat from penetrating inside