Ventilation openings in a roof are not placed for the use of:

Ventilation openings in a roof are primarily designed to facilitate the removal of smoke and heat from a structure during a fire incident, enhancing visibility and improving conditions for both firefighting operations and occupants' rescue efforts. The primary purpose of these openings is to allow for the efficient evacuation of smoke and superheated gases, thereby reducing the risk of flashover and improving the overall safety of the situation.

While ventilation can assist in rescue operations by clearing smoke and increasing tenability within the structure, the openings are not specifically designed for the deployment of hoses. Hoses are typically operated from ground-level access points or windows where firefighters need to direct water onto active flames. Ventilation openings serve a different critical function, making the implementation of hose lines from these points impractical and unnecessary.

Pumping operations also do not utilize ventilation openings as their function focuses on water delivery and pressure management rather than on smoke removal or improving conditions within the building. Thus, the primary design intent of roof ventilation openings excludes their use for hoses.