Ppv Ventilation Attic Fires

Positive pressure ventilation ppv is a valuable fireground tactic but it s also easily misunderstood. As the fire service awaits new ppv research homer robertson reviews ppv basics. A direct action on the fire to affect its behavior and reduce its size.

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However this tactic also provides additional oxygen to the fire and can increase the rate of heat and energy being released.

Ppv ventilation attic fires.

During initial attack fire crews should use small openings in the ceiling for water application. Moving from one room to another and punching the nozzle through the ceiling and. This pressurization or positive pressure ventilation ppv tactic can assist in the venting of smoke and high temperature combustion products and make attacking the fire easier than without ppv. For it to work there must be an opening.

As operations continue you might consider using positive pressure ventilation ppv if vent. This will prevent the clear environment below the ceiling from rapidly filling with smoke. The ppv fan was developed as a post fire ventilation tool meaning that the fire must be completely out before using the fan to ventilate the structure. On your way up to the attic close doors throughout the house to minimize the spread of smoke.

Attic fires isolated attic fires can benefit from ppv. 3 main ppv tactics exist according to fire situations.

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