Двускатная крыша тем дороже и сложнее, чем больше перекрытый ею пролёт, а у заводов, обычно, всё строение — это единственный пролёт и есть. Плюс, если там не крутой скат, а чисто вертикальный откос, то его можно возводить как стену, а это много проще и дешевле.
In construction, insolation is an important consideration when designing a building for a particular site.[24]
The projection effect can be used to design buildings that are cool in summer and warm in winter, by providing vertical windows on the equator-facing side of the building (the south face in the northern hemisphere, or the north face in the southern hemisphere): this maximizes insolation in the winter months when the Sun is low in the sky and minimizes it in the summer when the Sun is high. (The Sun's north/south path through the sky spans 47 degrees through the year). (с) wiki
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такие крыши часто бетонные ..
угол воспринимает на себя снеговую нагрузку.
а если класть ровную плиту - нужно чаще ставить опоры.
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In construction, insolation is an important consideration when designing a building for a particular site.[24]
The projection effect can be used to design buildings that are cool in summer and warm in winter, by providing vertical windows on the equator-facing side of the building (the south face in the northern hemisphere, or the north face in the southern hemisphere): this maximizes insolation in the winter months when the Sun is low in the sky and minimizes it in the summer when the Sun is high. (The Sun's north/south path through the sky spans 47 degrees through the year).
(с) wiki
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