Modern preschool building: design and construction practice
Checking the natural lighting of premises
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Modern preschool building design and construction
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Checking the natural lighting of premises Western building sanitary standards, as well as Russian ones, provide for a certain area of windows depending on the floor area of the room [7]. On the other hand, the depth of the room should not exceed more than two and a half times the height from the floor to the window lintel, depending on its shape. In addition to the ratio between the volume of the room and the area of the windows, various factors that play an important role must be taken into account, namely: a) the color of the internal fencing, b) the design of the windows, c) the properties of the glazing, d) the finish of the window, e) the processing of the window frame, e) the color the surroundings of the window; g) the absence of shading on the outside of the window (the most important factor, since all other factors are nullified in the presence of external shading). In accordance with the norms of natural lighting of premises, the ratio of window area to the area of the room is 1/6 - in ordinary cases; 1/7, when the angle formed by the horizontal plane and the inclined plane passing through the window sill of the opening and the highest point of the existing or projected opposite facade is between 35 and 45, 1/8, when this angle is less than 35 1/10 on a hill (above 800 m), when this angle is less than 35 The part of the window below 0.5 m above the floor is not taken into account. It is necessary to accept an amendment to the area of the room when there is a ledge more than 70 cm above the windows or if the window lintel is located lower than 2.30 m from the floor of the room. Exceptions are the windows of the second light. The depth of the room should be no more than 2.5 heights from the floor to the bottom surface of the window lintel. 9 E3S Web of Conferences 135, 03030 (2019) ITESE-2019 https://doi.org/10.1051/e3sconf/201913503030 If the wall opposite the windows serves to arrange furniture, the depth of the room can be increased by 80 cm. The lower limit of outdoor lighting under a cloudy sky for the area in question is 4000 lx. The average intensity of illumination of the room corresponds to the dependence 4000 0.25 ... . I a b c d e etc m (3) Illumination at floor level: bright rooms…………………......150 lx medium light rooms……. (60 – 150) lx dark rooms……………………… 60 lx Download 0.7 Mb. Do'stlaringiz bilan baham: |
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