The architecture of the houses and the lifestyle of the villagers are influenced by the geography, the climate, as well as the social aspect of each region. This reflects the wisdom of the Thai in the olden days.
The terrain in the North is mountainous. The weather is windy and cold, so the house is built to protect against the cool climate. The walls of the houses are angled outward so that it lessens the impact of wind.
The Fa Lai (ฝาไหล) architectural feature as you can see in the balcony is the sliding walls which they can slide open in the summer to receive wind and close during colder times.