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The Japanese government set up building standards of official residences and provides different levels of official residences by the officer rank to attracting for Japanese people to coming to work in Taiwan.
The principle researching purpose aims to 14 buildings which called Junior officer type D official residences in Taipei. The content of the research analysis by accumulating to make the comparison between Junior officer type D official residences damage specialty and the other types of official residence.
The expansion of Junior officer type D official residences is more obvious than the others. Except the main structure, lots of components are be repaired or removed. The other cases of official residence just aim to the parts like doors or floors renovation. However, these buildings have long-term lack of maintenance of aging and loss of waterproofing effect. The rain infiltrated into the house from roof ridge breakage, but also the connection between the ridge and gable.
Due to limited existing floor space (about 12 square meters) for Junior officer type D official residences, most of them are temporary expanded but not concern about the long-term preservation. They remove most partition walls, floor structure, even repaired the structure, to make the part of the structure cannot support to the roof or roof truss.
This research suggests for this type of official residence should notice the priority of damage by man-made renovate and the quality of water-proof layer applied on the roof, especially the connection between the ridge and gable of the convergence position.
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