| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | flat roof | traditional architecture in cold countries | Flat roofs are less common in cold countries to prevent snow buildup and improve insulation. | 1 |
| 2 | flat roof | traditional architecture in hot countries | Flat roofs are traditional in hot countries to reduce heat retention and improve cooling. | 1 |
| 3 | roof design | Architectural design | Incorporates flat roofs or terraces as usable outdoor spaces for socializing, gardening, or relaxation | 1 |