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Design and development of energy efficient re-roofing solutions

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  • Habibi, Shahryar
  • Obonyo, Esther Adhiambo
  • Memari, Ali M.

Abstract

Although the study of roofing systems (from coverings to structure of the roof) is of great significance to energy efficiency and sustainable development, design and construction of new roofs on top of existing roofs in buildings has not received sufficient attention. This study discusses re-roofing as one of the key options to reduce energy consumption and improve overall building performance. The more conventional choice and more frequently chosen option for building energy retrofit is vertical building envelope components, however, this paper presents the case study of a proposed retrofitting concept for the roof of an existing building. Using a simulation methodology, the research demonstrates how the proposed retrofitting concept improves the energy performance using electricity generated and external conduction gain as evaluation metrics. The proposed novel re-roofing concept consists of thermal insulation, waterproofing and electric energy generation properties. More specifically, the design concept includes a three-layer roofing system consisting of (from exterior toward interior): a PV panel, an EPDM membrane and an insulation layer. The main goal of this study is to develop a concept for an innovative re-roofing solution that demonstrates the feasibility of turning an old building into a watertight and energy producing system.

Suggested Citation

  • Habibi, Shahryar & Obonyo, Esther Adhiambo & Memari, Ali M., 2020. "Design and development of energy efficient re-roofing solutions," Renewable Energy, Elsevier, vol. 151(C), pages 1209-1219.
  • Handle: RePEc:eee:renene:v:151:y:2020:i:c:p:1209-1219
    DOI: 10.1016/j.renene.2019.11.128
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    References listed on IDEAS

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    Cited by:

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    4. Francisco Javier Montiel-Santiago & Manuel Jesús Hermoso-Orzáez & Julio Terrados-Cepeda, 2020. "Sustainability and Energy Efficiency: BIM 6D. Study of the BIM Methodology Applied to Hospital Buildings. Value of Interior Lighting and Daylight in Energy Simulation," Sustainability, MDPI, vol. 12(14), pages 1-29, July.
    5. Ahmad Sedaghat & Arash Mahdizadeh & Ramadas Narayanan & Hayder Salem & Wisam K. Hussam & Mohamad Iyad Al-Khiami & Mahdi Ashtian Malayer & Sayed M. Soleimani & Mohammad Sabati & Mohammad Rasul & Mohamm, 2023. "Implementing Cool Roof and Bio-PCM in Portable Cabins to Create Low-Energy Buildings Suitable for Different Climates," Sustainability, MDPI, vol. 15(20), pages 1-24, October.

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