operable window
[/ˈɑːpərəbəl ˈwɪndoʊ/]
nounpl: operable windows
janela operável
1. A window that can be opened and closed, allowing for ventilation and air circulation
The building code requires at least one operable window in each bedroom for emergency egress.
O código de construção exige pelo menos uma janela operável em cada quarto para saída de emergência.
2. A window designed with functional hardware that permits manual or mechanical opening
Operable windows help reduce energy costs by allowing natural ventilation.
Janelas operáveis ajudam a reduzir custos de energia ao permitir ventilação natural.
The term 'operable window' is critical in North American building codes and real estate, particularly regarding safety (emergency egress) and energy efficiency standards. In Brazil and Portugal, while the formal term is 'janela operável', people more commonly refer to them as 'janelas de abrir' (opening windows) in everyday speech. Building regulations in different regions may have specific requirements about the percentage of operable windows in buildings, making this term important in construction and architectural documentation.
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