Read the text (by yourself - 1 min., aloud - 2 min.). With low buildings the variety of possible shapes is much greater than with taller buildings

Low buildings

With low buildings the variety of possible shapes is much greater than with taller buildings. In addition to the familiar box shapes, which is also used in very tall buildings, low buildings may use cathedral-like forms, vault, or domes. A simple single-story structure might consist of a reinforced-concrete slab laid directly on the ground, exterior manor walls supported by the slab and a roof. For low building, the use of interior columns between masonry load-bearing walls is still the most common construction method. Spaced columns supported by the slab or by individual spread footing may be used, however; in that case the exterior walls can be supported by or hung between the columns.

The structure of a simple one-story building may also consist of the wall and roof framing combined by being either fastened together or shaped in one piece. The possible structural shapes are almost infinite and include the three sides of a rectangle fastened together into a unit called a bent, the familiar church form of vertical sides and sloping roof, the parabola and the semicircle or dome. The supporting structure and exterior walls, floor, and roof may also be made as a unified whole, much like a rectangular pipe with closed or open ends. These may be cast in reinforced plastic.

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