Attic what is it and why is it needed?

What is an attic?
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In simple terms, an attic is a residential or utility room between the ceiling of the top floor and the roof. If we use the definition according to SNiP (2.08.01-89), then the attic is a room in the attic space, the facade of which is created (fully or partially) by the surface of an inclined (pitched) or broken (hip) roof. Moreover, the line of intersection of the planes of the roof and facade should be at the level of not more than one and a half meters from the floor level of the attic. ⠀
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Due to the specific shape, the area of the attic is also regulated by building codes, and the height to the sloping ceiling depends on the angle of the roof slope: ⠀
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🔸1.5 m - ramp at 30⁰⠀
🔸1.1 m - ramp at 45⁰⠀
🔸0.5 m - a slope of 60⁰ and more ⠀
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It is from the angle of inclination of the roof that the attic usable area will also depend. If an elongated, high roof is not the highlight of the project, an angle in the range of 30⁰-40⁰ is enough.
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🏡 In fact, the attic is a warm, residential attic, since all SNiP standards for height and area, except for these maximum one and a half meters of a vertical wall, are advisory. ⠀
Apartments of several tens of squares, when the perimeter of the ceiling is large, and a closet of several meters in a modest house will be considered a loft. The optimum from the point of view of comfort is the height at the maximum point of the attic of 2.5 meters, the minimum sanitary standards - 2.3 meters. And does it make sense to spend money on arranging the attic, depends primarily on the dimensions of the house - if its width is less than five linear meters, the area of the resulting room will be too small for comfortable use. ⠀
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🏛 In addition, the convenience of attic rooms and the economic feasibility of their arrangement depends on the type of roof. More living space is obtained under the hip structures, especially if it is the roof of Sudeikin. ⠀
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With such a device, the share of usable area is almost 90%. However, the hip roofs are leading in terms of costs, while under the gable roof attic, although it will be less, its cost price will be lower. ⠀