METHOD OF FIGHTING A SMOULDERING ATTIC FIRE WITH A PIERCING NOZZLE AND A PIERCING NOZZLE

摘要

A method of fighting a smouldering attic fire with a piercing nozzle. A first step involves piercing a ceiling with a piercing nozzle to provide access to a fire in an attic insulated with insulation. The piercing nozzle is equipped with a diffuser. A second step involves diffusing small amounts of water delivered from a pressurized cylinder through the diffuser on the piercing nozzle into the insulation and relying upon the heat of the fire to convert the water to steam. The rapid expansion of the steam extinguishes the smouldering fire.