51-Year-Old Traditional House Renovated into a Highly Insulated Home; Renovation Model House Opens in Shiga Prefecture
Published
A "Adogawa High-Insulation Renovation Model House" has opened in Takashima City, Shiga Prefecture, where a 51-year-old traditional house was renovated into a home with high insulation performance. The information was announced on September 9, 2026, through the press release distribution service PR TIMES.
This model house is a facility designed to show examples of renovations that raise the performance of an old traditional house to the Insulation Grade 6 level. The insulation grade is a standard for residential insulation performance set by the national government; the higher the number, the less outside heat and cold are transmitted into the interior. The higher the grade, the easier it is to maintain an indoor environment that stays cool in summer and warm in winter.
In Japan, many homes were built long ago and not a few have low insulation performance. As a result, problems such as homes becoming cold in winter and large temperature differences between rooms have emerged. It is said that changes in room temperature can also affect the health of elderly people and others. Methods of improving the performance of older houses through renovation rather than rebuilding are attracting attention as one option for using homes over the long term.
This model house was opened as a place where people can see firsthand what can be done when renovating an existing home. The announcement is based on information from the business operator, and details such as renovation costs and the specific construction methods may become clear later. People interested in the energy efficiency of homes or in renovation can visit such facilities to gather information.
Sources: 朝日新聞
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