![]() ![]() These are roofs made from multiple layers that commonly include: a base sheet, fabric reinforcement layers and a protective surface layer. These are roofs topped with a foam-like substance that is generally made from two liquid chemicals that mix together to create a solid, flexible and lightweight material. See below for specific types of coatings and their characteristics. These roofs are treated with a number of different applied finishes. Typically they are designed to have a minimum fall of 1:40, which given on-site inaccuracies should result in a minimum fall of at least 1:80 in the finished construction.These types of roofs are frequently found on large industrial structures.įor low- pitched roofs, cool roof options may include: This type of roof has a flat, or near flat pitch with just enough slope to facilitate drainage. Temperatures can also be influenced by building design type, roof pitch, materials and structural components and application techniques. The colour of roofs and their material composition can significantly influence the temperatures they reach. ![]() ![]() This reduces the need to control indoor air temperatures with active systems. Its primary purpose is generally to provide protection from the elements, but it may also contribute to safety, security, privacy, energy conservation and so on.Ĭool roofs are roofs that stay cooler than traditional roofs in the sun by minimising solar absorption and maximising thermal emittance. 7 Related articles on Designing BuildingsĪ roof is a structure forming the upper covering of a building or other shelter. ![]()
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