How many centimeters of eave projection are allowed to shelter a self-built house from rain? What is the basis?

Eaves pick out how much can block the rain, I believe that most people build a house certainly will not go to consider such a problem, will only focus on how much to consider the coordination of aesthetics, because even if you are picking out how much it will not be able to block the rain problem.

It is, after all, the highest outdoor pickup, you even if it is picked to the limit of 1 meter 5 it is not possible to play a role in the rain, because the heavens blowing wind and rain who is also right left can not, blowing the wind you do not say that you expect the eaves can block the rain, even if it is the windows and doors have a small gap in the rain can be given to you to pour indoors, so consider the eaves can block the rain is a little bit na?ve.

Eaves generally refers to the sloping eaves protruding from the wall part, such as the old mortise and tenon structure of the frame of the tiled house, as well as the modern concrete pouring sloping roof, all need to be such a protruding portion of the eaves to decorate or adapt to the house, of course, there will be a certain amount of rain, but basically it is also a slight call for a little bit of wind basically can not be counted on, I believe that the majority of the people building a house will not count on it to block the rain, the majority of people will only consider its aesthetic and the rain, most of the people will not expect to be able to block the rain. People will only consider its aesthetic and decorative role, after all, there is such a prominent part of the look will be relatively beautiful and comfortable, this and the Chinese people's architectural style and the traditional habits of the formation of the aesthetic consciousness, such a gable protruding part of most of the 30-40 centimeters, only the old-fashioned tiled houses will reach 60 centimeters, the majority of modern poured sloping can only be 30 centimeters. Around, this size is suitable for modern simple and generous aesthetic requirements, too much protruding on the prominent Woodruff has a head and feet small feeling.

Eaves belong to China's ancient heritage down a building culture, it is large to the Royal Pavilion and pavilion, small to the common people's houses without exception there will be such a building eaves, it is a symbol of the characteristics of the Chinese building, as long as there are houses in China will be indispensable to the presence of the traces of the pavilion, but even if it is the majority of the ancient buildings will not be focusing on the role of the examination of the rain to cover it, and mainly focus on the role of the Its decorative and overall coordination of the beautiful role, which is the main role of the cornice.