I have a customer whose basement flooded. The lower two feet of
drywall were removed from the finished section of the basement. To
simplify rebuilding and reduce possible damage my customer would like
to use something like t1-11 siding where the drywall is now missing.
It would be stained and sealed front and back along with the edges.
Trim would hide the joints at the bottom and where the drywall meets
the t1-11. My concern in doing this work is that this might not comply
with the national building code?

Thank you for any help.