Chimney Roof

 is an assembled item used in missions and commissions.

Obtaining
Chimney Roof can be crafted using the Assembly Station after the player receives its diagram when accepting said mission on the Commission Board during the mission South Block Development.

Alternatively, the diagram can be bought from the Research Center Exchange for 16 Data Discs.

Mission
One is used in the  South Block Development mission.

Commission
is occasionally requested on the Commissions Board in Rank S commission.