Swiss Chalets have sloping roofs to get rid of the snow.
Because every hilly region gets heavy rain every time
so when it rains the water can easily go down
The house builders/ future home owners decided to create the houses with them.
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
Because they are there home made roofs and they are kind of poor people in life so that is why they have sloping roofs
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.
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.
A technique for constructing houses in areas of heavy rainfall is steeply sloping roofs. The steeply sloping roof will allow the rainwater to run off and avoid it collecting on the roof, adding unwanted weight to the roof.
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