Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. [surface elements and surface element components]
8. surface elements (architectural)
9. [floors and floor components]
10. floors (surface elements)

Anotations

Scope note:

Floor slabs or floor assemblies which are completely separated from (and mechanically isolated from) the structural floor by a resilient underlayment or resilient mounting devices; used to isolate the vibration of machinery from the building structure.