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. [structural elements and components for structural elements]
8. structural elements
9. enclosing structural elements
10. [walls and wall components]
11. walls
12. [walls by function]
13. fire walls

Anotations

Scope note:

Wall assemblies or segments of walls for buildings that resist high temperatures and limit the spread of flames. These follow code to resist flames for specific amounts of time, and are constructed using materials that have high fire resistance made to withstand extremely high temperatures without combusting, and feature construction details that limit air exchange and other factors.