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Green roofs vs Conventional roofs - Essay Example
Author : alexandrine57
Engineering and Construction
Pages 5 (1255 words)
Green Roofs vs Conventional Roofs School Green Roofs vs Conventional Roofs Introduction Green roofs are the roofs with vegetated surfaces. Green roofs have been used for a long time in history particularly in the domestic houses. Generally, conventional roofs have been used more than the green roofs in buildings in the urban areas…
On the other hand, conventional roofs are the more common type of roofs made of such materials as glass, wood, concrete, and bricks. This paper draws a comparison between the green roofs and the conventional roofs. Types The conventional roof has many types. Types of the conventional roof include but are not limited to the single ply roofs, built-up roofs, metal roofs, and asphalt shingle roofs. Single ply roofs are sheet-like membranes manufactured in the factory. Thermoplastic membranes and thermoset membranes are the two types of single ply membranes. Built-up roofs contain several layers of reinforced membranes and modified bitumen roofs. Built-up roofs are the most common as well as the oldest type of conventional roofs. They are also called as the gravel or tar roofs. There are three components in the built-up roofs, which include a layer of waterproofing, a reinforcement layer, topped with a surfacing layer. It is installed with the help of asphalt or coal tar. Structural metal panel roofs are used for roofs with low slopes as they have the characteristic quality of water barrier. They can also be used for roof assemblies with steep roofs. The structural metal panel roofs are constructed in such a way that water cannot pass through the joints. These roofs are installed in a broad range of substrates. ...
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