Unknown Construction / Unknown Occupancy Combinations

Unknown construction/occupany codes Touchstone.

AIR provides construction and occupancy codes to represent cases in which the construction class and/or unknown occupancy type are unknown. For onshore locations, construction class code 100 represents unknown construction, while occupancy class code 300 represents unknown occupancy. For offshore locations, construction class code 800 represents unknown construction, while occupancy class code 900 represents unknown occupancy.

If you try to import a location with a blank construction or occupancy code, AIR ImportExpress rejects the location. However, you can specify default construction and occupancy class codes for comma-separated values (CSV) imports. See Locations Defaults Tab.

The following table lists the results of a variety of unknown construction and/or unknown occupancy class code combinations. See "Location Basic Building Fields" for information about the basic building characteristics of locations.


Construction Class Code A	Construction Class Code B	Occupancy Class Code	Result
Unknown	Unknown	Unknown	Imports successfully. During analysis, Touchstone assigns General Commercial (311) or Unknown Offshore Asset Occupancy (900) as the occupancy code. For more information related to a specific model, refer to the model documentation on the .AIR Client Portal.
Known	Unknown	Unknown	Imports successfully. During analysis, Touchstone assigns construction class code A to construction class code B.
Unknown	Known	Unknown	Imports successfully. During analysis, Touchstone assigns construction class code B to construction class code A.
Known	Known	Unknown	Imports successfully.
Unknown	Unknown	Known	Imports successfully.
Known	Unknown	Known	Imports successfully.
Unknown	Known	Known	Imports successfully.
Known	Known	Known	Imports successfully.