Practical Implementation and Social Significance of Localized Low-Cost Airtightness Retrofits in Existing Condominiums: In the Context of Decarbonization, Energy Justice, and Well-being

IR IR (HANDLE) Web Site

Bibliographic Information

Other Title
  • 既存集合住宅における局所的・低コスト気密改修の実践とその社会的意義―脱炭素・エネルギー正義・ウェルビーイングの文脈から
  • キソン シュウゴウ ジュウタク ニ オケル キョクショテキ ・ テイコスト キミツ カイシュウ ノ ジッセン ト ソノ シャカイテキ イギ : ダツタンソ ・ エネルギー セイギ ・ ウェルビーイング ノ ブンミャク カラ
Published
2025-09-01
Resource Type
departmental bulletin paper
Publisher
宇都宮大学国際学部

Search this article

Description

This study investigates the impact of localized airtightness and insulation retrofitting on the indoor thermal environment of three frequently used private rooms within an existing owner-occupied condominium unit in Japan. Targeting commonly neglected areas such as air conditioning pipe penetrations and ventilation inlets, the research combines thermographic analysis with pre- and post-retrofit temperature measurements, compared against outdoor conditions. The results reveal a substantial improvement in minimum indoor temperatures after the retrofit, with the indoor-outdoor temperature gap averaging 12 to 15°C during colder periods. In several cases, peak indoor temperatures also exceeded outdoor levels, indicating improved heat retention and daytime thermal performance. These findings suggest that even small-scale, low-cost interventions—when guided by careful observation and resident input—can lead to meaningful enhancements in comfort, health, and energy efficiency within existing buildings. The study positions this case as a practical model for promoting thermal equity and well-being, particularly in the context of climate change adaptation and decarbonization. Furthermore, it highlights the importance of resident engagement and empirical, evidence-based evaluation in informing future support mechanisms, policy development, and institutional frameworks aimed at inclusive and sustainable housing improvements.

Journal

Details 詳細情報について

Report a problem

Back to top