The top finials of the gable is called “Cho-fa” represent the head of mythical serpent or Na-Ga.
The finials on the gable edges are called “Hang-Hong” represent the heads of the Na-Ga.
The ridge -like teeth is running along the gable edges on the both sides of the gable called “Bai-ra-ga” represent the features of mythical birds in Hindo literature or Garuda.
The entire design symbolizes the Garuda seizing the Naga,which might be interpreted as good overcoming evil.