Swiss Chalets have sloping roofs to get rid of the snow.
houses in hills have sloping roofs so that the rain-water and snow may drain off easily.
because of snowfall.
this normally has to do with snowfall in the area and not how hilly it is. areas with high precepitation in the winter have sloping roofs so that snow will not accumulate and put excess pressure on the roof and cause a collapse.
All countries in Europe have sloping roofs on at least some of their houses
Short answer: No. Longer answer: Although lots of houses there have sloping roofs, Holland is not 'the' country. Lots of houses have flat roofs too. In countries with lots of snow each winter, houses tend to have more sloping roofs; almost all have in the alps (Austria, Switzerland).
They help the flow of rain off the roof. Flat rooves are more subject to leaking.
Houses in Goa have sloping roofs to help with drainage during the monsoon season, to prevent water from accumulating on the roof. The sloping design also helps to keep the inside of the house cooler by allowing hot air to rise and escape. Additionally, the sloping roofs are a characteristic feature of Goan architecture influenced by Portuguese colonial style.
The houses in the terai regions and in Goa and Mangalore have sloping roofs because there is very heavy rainfall. If there is no slanting roof, the water of the rain will collect there which weaken the strength of roofs.
Sloping roofs are self-draining from rain and snow, and less likely to leak.
Most houses have sloping roofs including Ranch, Colonial, cottage, saltbox...
mountains have slanting roofs so that the ice can slide of and if houses in mountains heve flat roofs the ice on the roof will eventually melt to water and there will be seipage in the house
Assam has very heavy rainfall every year. To avoid accumulation of water on the roof tops, houses have sloping roofs