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An Experimental Study on the Ventilated Cavity of the Ventilated Roof to Improve Insulation Performance for the Cooling Season

하절기 단열 성능 향상을 위한 통기성 지붕의 통기 구조에 관한 실험적 연구

  • Received : 2014.07.03
  • Accepted : 2014.08.18
  • Published : 2014.09.30

Abstract

The thermal performance of the building envelope is mainly required for guaranteeing a comfortable and hygienic interior climate. A roof is a part of the building envelope which provides protection from the thermal damage of the sun. To improve this protection ability, we can consider using a ventilated roof, which has a ventilation layer known as a cavity, beneath the roof cover panel. The objective of this study is to evaluate the influence of such factors as the slope of the roof, size or shape of the openings (i.e. inlet or outlet), effective cross section and cavity depth on the improvement of the air flow in the cavity for better thermal performance of the ventilated roof. In this study, the influence on air flow which is caused by the characteristics of these elements is researched. The evaluations are carried out by way of experiments.

Keywords

Acknowledgement

Supported by : 한국연구재단

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