...and of course, bottom floors, or upper,

can be covered by this thin layer of metal as flooring

or roof, to accommodate the earthen floors.

 

which means first and second floor can be connected

and welded by metal, and the concaved area is pasted

with construction aggregate to cover the difference

in depth...

 

earthen walls themselves, it must be compressed

in certain shapes, with holes in them.

which is commonly shaped in certain ways

in miniature presses.... (to later slid into the frame/bars).

 

which then also makes, "low rises" quite high rise,

without having to use so much materials...

 

and built in record time...