1.3 roof
.The roof must be built with materials that are not easy to burn, durability, and can prevent the contamination from the outside. In addition to prevent pests. This may be installed supplementary materials, such as Ta network together.Rain and dust may be installed. Gutters or take care of the area under the eaves. To prevent the rain water and dirt splashing from the floor into a building The ceiling within the building should be in a clean easily.In the case of no ceiling installation. There must be designed to live in a way that is easy to clean. Do not accumulate the dust. There should be cleaned regularly ceiling
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