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気候変動文脈における社会住宅の改修：ポルトガル・ベイラ・インテリオール地域のケーススタディ

Social Housing Retrofit in a Climate Change Context: A Case Study in Beira Interior, Portugal (原題)

Pedro Brandão, João Carlos Gonçalves Lanzinha

Sustainability📚 査読済 / ジャーナル2026-10-09#省エネ経営インパクト: コスト削減対象セクター: real_estate
DOI: 10.3390/su182010270
原典: https://doi.org/10.3390/su182010270

🤖 gxceed AI 要約

日本語

ポルトガル・ベイラ・インテリオール地域の社会住宅を対象に、外皮改修が暑熱条件下の室内熱性能に与える影響を校正済み数値モデルで評価した研究。現在・将来・極端気候シナリオの動的熱シミュレーションを実施し、規制適合の外皮措置・断熱強化・換気強化の組み合わせが快適性を大きく改善する一方、断熱厚の増加のみでは効果が乏しいことを示す。制御換気の重要性と、暑熱不快だけでなく冷涼不快への注意も指摘する。

English

This study evaluates how envelope retrofit measures affect indoor thermal performance under heat conditions in a representative social housing dwelling in Beira Interior, Portugal, using a calibrated numerical model. Dynamic simulations across current, future and extreme climate scenarios show that combined regulation-compliant envelope measures, reinforced insulation and higher ventilation substantially improve comfort, while thicker insulation alone yields little benefit. Controlled ventilation is highlighted, alongside caution about cool discomfort.

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

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本の社会住宅・公営住宅の暑熱適応改修や省エネ改修政策を考える上で、断熱増厚偏重への警鐘と換気戦略の重要性は参考になる。ただしSSBJ・有報開示との直接接続は弱い。

In the global GX context

Adds empirical evidence on climate adaptation in social housing, relevant to EU building-performance and adaptation policy debates; limited direct linkage to TCFD/ISSB disclosure frameworks.

👥 読者別の含意

🔬研究者:改修措置の組み合わせ効果と将来気候シナリオ下の熱快適性評価手法の参考になる。

🏢実務担当者:断熱増厚だけでなく換気制御を組み合わせる改修設計の判断材料になる。

🏛政策担当者:社会住宅の省エネ・適応改修政策において換気と断熱のバランスを検討する根拠になる。

📄 Abstract（原文）

Global climate change effects on development and sustainability are currently growing. Many of the planet’s climates present temperature increases, with the Iberian Peninsula in Europe considered as a hotspot. Action in public social housing buildings is highly considered, as a large portion was built before the introduction of thermal regulations, presents poor thermal performance and has users with low resources, representing a health-related concern. This study addresses the climatic sensitivity of a representative case study dwelling regarding the impact of constructive retrofit measures in the building envelope on improving thermal performance for heat conditions, conducted for the Beira Interior region, Portugal. Resorting to a calibrated numerical model, dynamic thermal simulations for current, future and extreme climate scenarios were performed. The resulting indoor temperatures were assessed regarding indoor thermal discomfort and overheating. The results show that the combined effect of regulation-compliant envelope measures, reinforced insulation and higher ventilation achieves considerable thermal comfort improvement, while only investing in high thermal insulation thickness achieves no substantial benefits. Controlled ventilation strategies can be highly relevant for retrofitted buildings, also due to constraints related to occupancy influence or possible thermal insulation limited effects. Heat-related discomfort is an issue, although smoother heat conditions require caution due to cool discomfort.

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