Area ratio of window to wall in all directions of residential buildings, the north direction is not more than 0.25; The east-west direction is not greater than 0. 30; The south direction is not greater than 0. 350.
In order to ensure the brightness of different building spaces, the illumination standards are different. The window opening area below 0.75 meters from the ground is not included in the window-to-ground ratio. For example, window area: in residential design, the window-to-floor ratio of living room is generally 1/6~ 1/4, and that of bedroom is generally1/6 ~1/8; Stairs-112; The window-floor ratio of industrial buildings is 1/8.
Extended data
Sometimes, in order to achieve a certain elevation effect, the area of the window may not be limited by this. In order to strengthen indoor ventilation in hot areas in the south, the area of windows can also be larger. For cold areas, in order to reduce the heat loss of room heating, the area of windows can also be appropriately smaller.
The plane position of the window affects whether the light is uniform, whether there are dark corners and glare. So vertical layout is generally better than horizontal layout. When there is a lighting window on one side of the classroom in primary and secondary schools, the light should be ensured to enter from the left side.
When considering ventilation, try to achieve natural ventilation (in the through flow, windows are often arranged through windows or doors and windows).
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