How is the house destroyed?

The automated house, which is the main character in Ray Bradbury's short story "There Will Come Soft Rains," is destroyed by a fire. Ironically, the house survives an atomic blast but falls prey to fire when a tree bough crashes through a kitchen window causing a flammable cleaning solvent to "shatter over the stove." The house immediately leaps to action with recorded voices on the alert: "Fire, fire, fire!" But, although the house is equipped with "water pumps," "scurrying water rats" and "blind robot faces" with "faucet mouths gushing green chemicals," the fire spreads too rapidly and, one by one, the alert voices are silenced as the house succumbs to the flames. In the end, Bradbury describes a chaotic scene where the house does all of its normal activities in a "maniac confusion," cleaning wildly, "reading poetry aloud in the fiery study" and "making breakfasts at a psychopathic rate." Finally, the house is almost completely destroyed with only one wall remaining and one voice continually repeating the date over and over.