熱帯気候における既存住宅の省エネ型室内冷房への改修：手頃な気候適応のためのフレームワーク

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:熱帯住宅の改修効果に関する実証エビデンスの整理と、適応フレームワーク設計の出発点として有用。

🏢実務担当者:低コスト改修パッケージの優先順位づけに使えるが、開示・報告実務への直接の示唆は限定的。

🏛政策担当者:途上国住宅ストックの適応政策・改修支援策の設計において、費用対効果の観点から参考になる。

For buildings already built in a tropical climate, rising cooling demand and temperatures are leading to thermal challenges. Many home dwellings are poorly protected from direct heat from the sun and are unable to cool themselves sufficiently, making them more likely to rely on fans and air-conditioning. In this research, the empirical evidences concerning retrofit measures to enhance the indoor cooling conditions, reduce cooling-energy demand and improve the climate adaptation of the existing residential buildings in tropical climates were reviewed. The literature search was done systematically following the "Preferred Reporting Items for Systematic Reviews and Meta-Analyses" (PRISMA 2020) guidelines. Literature searches were conducted in major academic search databases and included citation searching, and a specific search using African data. Context such as climatic conditions, retrofit measure, thermal outcomes, energy performance, affordability and climate adaptation value were assessed for the studies that were eligible. The 12 empirical studies that were used for the core synthesis were comprised of nine studies conducted in African countries and three studies conducted in Asian countries. The results indicated that reflective roofs consistently reduced the indoor heat, with the cool roof treatments and external roof covers also showing a beneficial effect, depending on building and climatic conditions, whereas shading, insulation and suitable ventilation also gave further benefits. There were also some retrofit packages that showed potential for saving energy and improving indoor conditions that cost less. The effectiveness of ventilation was less consistent, however, and passive ventilation methods were less effective under some future climate scenarios. Based on these results, an affordable climate responsive retrofit framework was developed for building assessment, heat sources identification, prioritisation of interventions, selection of affordable retrofit packages, assessment of renovation performance and evaluation of climate-resilience. The framework is an evidence-based process to enhance current residential buildings, whilst taking into consideration household resources and changing climatic conditions.

• openalex https://doi.org/10.70382/ajbegr.v13i4.085first seen 2026-10-23 05:05:49 · last seen 2026-10-30 04:40:45