In this study, I ascertained the present state of long-term maintenance and preservation plans for wooden houses by a questionnaire survey conducted by a construction company. I then looked for potential problems, taking location into consideration. I found that snowfall in Hokkaido and the Tohoku area is carefully considered, while termites and sea breeze are given serious thought in and around Kyushu and Okinawa. In normal warm areas, long-term maintenance and preservation plans do not receive any particular attention.
It is important to understand the water situation, which can cause house decay in wooden houses, and to indicate countermeasures in construction manuals. It’s also necessary to establish a maintenance plan that will not result in cost overruns, and will raise the consciousness of both the construction company and the house occupants.
