Scholarlink

High temperatures in hot arid regions often lead to indoor thermal discomfort and overheating, driving up energy demand due to heavy reliance on air conditioning, particularly in summer. As the roof is directly exposed to intense solar radiation, it significantly contributes to indoor heat gain. Passive roofing strategies offer a promising solution to improve thermal performance and reducing energy use. This study evaluates six passive roofing strategies applied in a residential villa in a hot arid city in Oman, using dynamic simulations conducted in DesignBuilder. A baseline model was developed and calibrated with actual energy consumption data from the villa. The strategies were then simulated and assessed. The results showed that the green roof strategy provided the highest energy savings of 16.10% when used alone, and 91.60% when combined with PV panels. Cool roof strategies also performed well, with the high reflectivity of 0.8 surface reducing annual average temperatures by 2.46% on the first floor. The findings offer useful guidance for engineers and architects in selecting passive roof strategies for sustainable residential design in hot arid climates. The study also serves as a reference for future research on sustainable building practices in similar environments.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Roof Design Alternatives to Reduce Overheating in Residential Buildings in Oman

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Maryam Mohamed,
  • Hanan Al-Khatri,
  • Fatema Al-Akhzami,
  • Hafsa Al-Balushi,
  • Samiya Al-Ismaily,
  • Zainab Al-Abri,
  • Saleh Al-Saadi

摘要

High temperatures in hot arid regions often lead to indoor thermal discomfort and overheating, driving up energy demand due to heavy reliance on air conditioning, particularly in summer. As the roof is directly exposed to intense solar radiation, it significantly contributes to indoor heat gain. Passive roofing strategies offer a promising solution to improve thermal performance and reducing energy use. This study evaluates six passive roofing strategies applied in a residential villa in a hot arid city in Oman, using dynamic simulations conducted in DesignBuilder. A baseline model was developed and calibrated with actual energy consumption data from the villa. The strategies were then simulated and assessed. The results showed that the green roof strategy provided the highest energy savings of 16.10% when used alone, and 91.60% when combined with PV panels. Cool roof strategies also performed well, with the high reflectivity of 0.8 surface reducing annual average temperatures by 2.46% on the first floor. The findings offer useful guidance for engineers and architects in selecting passive roof strategies for sustainable residential design in hot arid climates. The study also serves as a reference for future research on sustainable building practices in similar environments.