Truck 4 and Engine 4 are on scene of a working house fire in the 3300 block of Snidow Court. Engine 4 pulling a line. Truck 4 working on ventilation. Engine 10 now on scene pulling a second line. Fire thru the roof of a large two story house. Battalion 1, Battalion 2, Engine 12, Engine 8, Truck 8, Medic 10, and Utility 12 are also assigned to this fire.