• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 추계 학술논문 발표대회
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• pp.92-93
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• 2018

This study analyzed the physical properties of insulation materials upon completion of building completion years and found the suitability of the current energy performance analysis methodology to apply the insulation specified in the design drawings to the same thermal conductivity values as the new materials.

• 설비공학논문집
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• 제25권11호
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• pp.617-623
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• 2013

This study is to draw thermal property data during long-term aging, by testing the thermal conductivity of building insulation materials in Korea. The thermal resistance of extruded insulation within 3 days from manufacture performed well over the KS Standard. After 50 to 110 days, however, the thermal performance had deteriorated to the level of the KS standard. Eventually, after 4,000 days, the insulation performance had deteriorated to about 25.4~41.8% of the initial performance. Therefore, this research will be utilized as a reference for thermal properties during long-term aging, in order to improve standards and regulations related to building insulation materials.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2006년도 하계학술발표대회 논문집
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• pp.999-1005
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• 2006

The aim of this paper is to evaluation survey and improvement method of building service system insulation material incombustibility. In Korea, various insulation materials are being used to prevent energy losses. Performance of insulation materials is gradually advanced, and new insulation materials are developed and being used. We don't have prefer test standard of insulation material incombustibility. In this paper we investigate domestic and foreign standard about incombustibility Through the authors will show how we can improve incombustibility test standard in Korea.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 추계 학술논문 발표대회
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• pp.190-191
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• 2014

The building insulation materials shall keep their thermal conductivity constant even when the freezing and thawing repeats for over a long time. But, in this condition of repeated freezing and thawing, the organic building insulation material may suffer the degradation in the thermal performance as the gas put into the insulation materials gets out slowly over a long time. Accordingly, in this study, the change in the thermal performance has been tested and evaluated when the repeated freezing and thawing cycles happen.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2015년도 춘계 학술논문 발표대회
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• pp.175-176
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• 2015

Insulation in buildings are one of the crucial factors for energy reduction, and depending on the application areas and properties of the insulation requirements, various different types of insulation materials are being developed, produced, and used. Amongst these is the aircaps often used as packing materials. Because of their porous nature, they are highly efficient in preventing heat and are consequently used overseas often as insulation materials and as part of cold water concrete insulation curing method. This paper studies the recently developed usage of aircaps in waterproofing materials and evaluated their performance as supplementary insulation materials.

• 한국건축시공학회지
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• 제16권6호
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• pp.595-601
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• 2016

현재 건축구조물에 사용되는 단열재의 단열성능은 초기성능을 기준으로 설계 시에만 반영하고 있으며, 장기 내구성 저하에 따른 단열성능 감소는 반영되고 있지 않다. 본 연구에서는 가속내구성 시험을 통해 단열재의 내구성 저하에 따른 단열성능 저하를 검토하였다. 연구결과, 발포폴리스티렌 단열재 비드법의 경우 표준환경 조건 및 실험실 가속 시험 조건에서는 경시변화에 따른 성능저하가 나타나지 않았으나, 동결 융해 시험 조건에는 성능이 저하하는 것으로 나타났다. 반면, 압출법의 경우 동결 융해 시험 조건에서는 단열성능 저하가 작았지만, 경시변화 초기에 내부 가스의 방출로 급격한 성능저하를 나타내었다. 또한, 경질 폴리우레탄 폼 단열재의 경우 다른 단열재에 비해 초기 단열성능이 매우 뛰어났으나, 실험실 가속 시험조건 및 동결 융해 시험 조건에서는 성능이 다소 저하하는 것으로 나타났다.

• 청정기술
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• 제18권1호
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• pp.14-21
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• 2012

친환경 건축물에 사용되는 미네랄울, 폴리우레탄 등 전통적인 단열재로부터 최근에 주목받고 있는 VIP (Vacuum Insulation Panel), 에어로젤, 그리고 미래기술로 연구되고 있는 VIM (Vacuum Insulation Material), DIM (Dynamic Insulation Material) 등 단열재 및 단열 시스템의 특성과 장단점을 비교하였다. 매우 낮은 열전도율을 지닌 VIP 및 에어로젤은 기존 단열재에 비해 에너지 소모를 줄일 수 있으므로 주거면적을 크게 확대할 수 있는 장점이 있으며, 특히 에어로젤은 반투명 및 투명재질로 만들 수 있어 건물에 응용될 수 있는 가능성이 매우 크다. 단열재는 낮은 열전도율뿐만 아니라, 건설현장 응용성, 기계적강도, 내화성, 비용 및 환경영향 등을 고려하여야 하므로, 전통적인 단열재 및 최신 단열재를 활용하고 지속적으로 개선시키는 노력을 해야 할 것이다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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• pp.222-223
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• 2018

Recent government policies are increasing interest in zero-energy housing, a building that minimizes energy consumption (90% reduction). As the importance of building passive performance is emphasized, the role of insulation is increasing as a way to reduce indoor heat loss in order to minimize the use of cooling and heating energy. There are two main types of insulation. Organic insulation is widely used for various construction structures such as construction and industrial due to some merits such as the convenience of construction and construction cost. However, it has been pointed out as a main cause every time a fire accident occurs, Jecheon Sports Center', the fire damage of buildings caused by the use of organic insulation materials is expanding to social problems, so it is urgent to research on nonflammable inorganic insulation materials.

• 한국태양에너지학회 논문집
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• 제40권2호
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• pp.11-23
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• 2020

The application of the high-performance insulation materials for buildings seems to be an essential measure for reducing energy use in buildings. Phenolic foam is a readily available insulation material with thermal conductivity of about 0.018 to 0.020 W/(mK). It has the advantage of higher thermal resistance and better fire resistance compared to other conventional building insulation materials. Insulation material used for building envelope is regarded as one of the decisive factors for building's energy load. Furthermore, the degradation of its thermal performance over time increasingly affects the building's energy use demand. Generally, the life span of conventionally built buildings is expected to be more than 50 years, so the long-term performance of insulation materials is critical. This paper aims to evaluate the long-term performance of phenolic form boards through an accelerated aging test. The tests were conducted according to BS EN 13166 and KS M ISO 11561. Based on the results of the accelerated aging test, the thermal performance variation of the material was analyzed, and then its aged value after 25 years was computed. Also, the characteristics of the phenolic foam board's long-term performance were also examined based on the standard testing methods adopted.

• Journal of the Korean Wood Science and Technology
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• 제44권2호
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• pp.264-273
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• 2016

The insulation of a building envelope influences the hygrothermal performance as well as the thermal performance of the building. While most of Korean wood frame houses have an interior insulation system, the exterior insulation system with high thermal performance has recently been applied. While it can be effective in energy savings for better insulation performance, without consideration of the moisture, condensation and mould growth can occur. Therefore, in this study, hygrothermal behaviour, water content, and mould growth were analyzed using hygrothermal simulation of an exterior wall of a wood frame house with which the interior insulation and exterior insulation systems were applied. The wall layer included Wall A (Interior insulation) and Wall B (Exterior insulation). The U-values were identified as 0.173 and $0.157W/m^2K$, respectively. The total water content and OSB absolute water content of Wall A were confirmed to be higher than those of Wall B, but the absolute water content did not exceed the reference value of 20%. The moisture content of the two walls was determined to be stable in the selected areas. However, mould growth risk analysis confirmed that both Wall A and Wall B were at risk of mould growth. It was confirmed that as the indoor setting temperature decreased, the mould index and growth rate in the same area increased. Therefore, the mould growth risk was affected more by indoor and outdoor climate conditions than by the position of the insulation. Consequently, the thermal performance of Wall B was superior to that of Wall A but the hygrothermal performances were confirmed to be similar.