Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Effect of External Thermal Insulation Composite System with a Non-combustible Calcium Silicate Based Mineral on The Mitigation for Reducing Fast Spread of Flame

불연성 무기 단열재를 화재확산 방지구조로 적용한 외단열 마감시스템의 화재성능

  • Received : 2016.05.18
  • Accepted : 2016.09.02
  • Published : 2016.10.20
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Abstract

As a building energy saving standard strengthened, The number of building installed external thermal insulation composite system(ETICS) using EPS insulation increased. But frequent fire accident in the buildings installed EIFS using EPS led to strengthening of building fire safety regulation. This study is for fire property of EPS ETICS reinforced with noncombustible calcium silicate-based mineral insulation as a fire spread prevention structure(FSPS). Fire test for large scale wall by ISO 13785-2 was applied and results showed EPS EIFS with FSPS got 3~8 times superior fire safety than normal EIFS by visual investigation. Temperature and heat flux measurement results, which data of upside of specimen were lower than downside, also supported fire safety of EIFS with FSPS.

건축물의 에너지 절약기준이 강화됨에 따라 단열성능이 우수한 외단열 공법의 적용이 증가 추세에 있으나, 빈번한 화재사고로 외단열 화재확산 방지를 위한 규정이 강화되었다. 따라서, 기존 EPS 외단열 시스템의 단열성능을 확보하면서 화재안전성을 향상하기 위하여 불연성 단열재를 화재확산 방지구조로 적용한 EPS 외단열 시스템의 대형 화재시험을 ISO 13785-2에 의하여 수행하였고, 그 결과, 시간에 따른 시험체의 외형분석에서 EPS 단열재만 사용한 외단열 공법보다 우수한 화재확산 방지효과가 있는 것으로 판단되었고, 온도 및 열류량 측정결과에서도 하단부보다 상단부의 온도 및 열류량이 낮게 측정되어 차열효과가 있는 것으로 판단되었다.

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References

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  1. BS 8414-1 Fire Safety Tests for External Cladding Systems Using Insulating Materials of Different Fire Ratings vol.18, pp.2, 2018, https://doi.org/10.9798/KOSHAM.2018.18.2.185