A post that supports a roof is called a column.
A rafter is part of a roof, it supports the roof.
the post that supports a house is called a column.
the post that supports a house is called a column.
We call roof Saqaf in arabic or سقف
cupola
I guess if its a terrace roof, you call it a parapet.
trestle
A shingle...
The buttress supports the roof above the statues (n.)
I would call it a cave in.
A Christian.