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Research Article

An Analytical Study on Heating and Cooling Demand Using Cool Roof System in Deteriorated Single Family House

노후 단독주택에서 쿨루프의 적용을 통한 냉난방 요구량 변화에 대한 해석적 연구

Seok-Ho Hwang1*
황 석호1*
1Associate Professor, School of Architecture, Kyungnam University, Changwon, Korea
1경남대학교 건축학부 건축공학전공 부교수
*Corresponding Author
30 August 2022. pp. 321-332
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Abstract

A cool roof has the advantage of reducing the urban heat island effect and building cooling requirement by reflecting solar radiation on the roof surface. Therefore, it is being used as a green remodeling technology for deteriorated buildings. However, to evaluate the performance of the cool roof, it is necessary to evaluation of increases of heating demand due to the decrease of solar heat gain in winter. The ratio of heat gain and loss on the roof surface was analyzed according to the insulation level of old buildings. In particular, buildings with good insulation can reduce heat loss in winter, but may increase cooling requirements in summer. Therefore, reducing the heat gain through the cool roof in summer can be a good alternative. It was confirmed that the heat gain in summer through the roof surface decreased rather than the heat gain in winter, so, the heating and cooling demand was reduced by 27% on the flat roof and 30% or more on the slope roof.

Keywords
Cool roof
Green remodeling
Flat and slope roof
Heating and cooling demand
키워드
쿨루프
그린리모델링
평지붕과 경사지붕
냉난방 요구량
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Information
  • Publisher :Korean Institute of Architectural Sustainable Environment and Building Systems
  • Publisher(Ko) :한국건축친환경설비학회
  • Journal Title :Journal of Korean Institute of Architectural Sustainable Environment and Building Systems
  • Journal Title(Ko) :한국건축친환경설비학회논문집
  • Volume : 16
  • No :4
  • Pages :321-332
  • Received Date : 2022-08-11
  • Revised Date : 2022-08-25
  • Accepted Date : 2022-08-26
  • DOI :https://doi.org/10.22696/jkiaebs.20220028
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