Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [additive and joining processes and techniques]
6. [placing processes and techniques]

Anotations

Scope note:

The process of building a roof with dry vegetation such as straw, reed, sedge, rushes, or heather; the vegetation is layered so that rain water is shed away from the inner roof. Thatching is an ancient roofing method, found in both tropical and temperate climates.