• Journal of the Korea Institute of Building Construction
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• v.21 no.6
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• pp.653-664
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• 2021

As the construction standards for energy-saving eco-friendly housing have recently been strengthened, the proportion of window work has increased with the demand for high-efficiency housing. Windows have high frequency of use, and there is the potential for many defects to occur depending on the characteristics of construction. According to a government agency's survey of defects in public rental apartment housing, defects in the windows work accounted for the highest portion of complaints received. Accordingly, related previous studies were considered, and it was found that the existing studies in Korea lacked research that reflected the construction characteristics of window work and the importance of maintenance. In addition, existing overseas studies considered both the constructor and the resident's position, considering the cost aspect together, and showed a trend of structuring the relationship between defects and causes. Therefore, this study will analyze the causes of defects that can occur in the construction phase of the windows work, reflect the construction characteristics, and derive major factors that consider the importance of maintenance based on the possibility of recurrence after repairing defects. Ultimately, this research will contribute to preventing defects in the construction phase and reducing maintenance costs by presenting a highly effective defect management plan through selecting the major factors for each defect type that can be intuitively judged by analyzing the causal relationship between defect types and causes.

• Korean Journal of Construction Engineering and Management
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• v.20 no.4
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• pp.46-55
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• 2019

The exposed concrete has been widely used in building construction. Therefore, many researches are presented to secure a proper construction quality of exposed concrete. Low quality and management absence, however, still remained in construction fields. Thus, many studies have been conducted to improve the quality, but defects still occur in the exposed concrete finishing work. In this study, the causes of defects were analyzed by process in order to prevent the generation of defects and to enhance the need for integrated management to secure quality. In addition, a case study and AHP analysis have derived the importance of defects occurring in the exposed concrete finishing work. The study concluded that the occurrence of the exposed concrete finishing work needs to be managed throughout the process, not the management limited by one process, according to the causes of the existing defects, and integrated management is required to prevent defects and improve quality of exposed concrete finishing work.

• Journal of KIBIM
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• v.2 no.2
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• pp.27-36
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• 2012

Recently, apartment housing tends to increase 3-4% every year by economic growth and development of construction technology in domestic construction industry. According to this tendency, construction enterprises are providing high-quality and various residential space, and residents also want high-quality apartment housing without any defect. Construction company make efforts to decrease construction defects in order to satisfy all the residents, and to improve company value. However, it is impossible to have no defect in construction because construction works are combination of many different complicated process. Because of the responsibility for the defect, conflicts between construction company and residents have been occurred. This study suggests defects management method that can be used from defect register phase to defect repair phase with a function of smart-device of the high penetration rate. The effectiveness use of the suggested method might save defects maintenance time and improve resident satisfaction about construction quality.

• Journal of the Korea Institute of Building Construction
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• v.21 no.4
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• pp.257-268
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• 2021

This study analyzed the major issues of 24 defect litigation precedents before and after 2013, based on 2013, when defect litigation in relation to the rapidly increasing defect disputes in apartment houses. The amount of defect removal per household is 2,572 thousand won per household, which is about 5% less than before 2013 from 2013, but the judgment amount per household has rather increased by about 19%, showing 1,916 thousand won per household after 2013. By type of construction, defects on cracks accounted for the largest proportion before and after 2013. Before 2013, equipment, tiles, and windows appeared in the order, and after 2013, landscaping, tiles, insulation and window work were in the order. In order to prevent such defect disputes, efforts to prevent defect disputes will be needed in the design stage, construction stage, and maintenance stage.

• Journal of the Korea Institute of Building Construction
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• v.24 no.1
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• pp.55-66
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• 2024

This research addresses the types and causes of defects in seismic retrofitting projects of school facilities, which, following the Gyeongju and Pohang earthquakes in September 2016 and November 2017 respectively, have been identified as having comparatively lower seismic resilience among public buildings. The incidence of seismic retrofitting has notably increased in the subsequent years, raising concerns about the potential for defects arising from these efforts. The government has committed to enhancing the seismic resilience of all public facilities by 2035, with a specific focus on completing upgrades for educational establishments by 2029. Although prior investigations have explored construction defects in school facilities, there exists a gap in research specifically targeting defects within seismic retrofitting processes. Thus, this study aims to catalog the defects associated with seismic retrofitting efforts and analyze their underlying causes to identify crucial management strategies for defect mitigation. Furthermore, by examining the interplay between defect types and their causative factors, the study seeks to pinpoint essential management practices that could preempt defects during the construction phase, ultimately aiding in the reduction of future maintenance expenditures.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.403-410
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• 2017

Apartment housing has rapidly increased since the housing supply policy implemented in the late 1980s. However, various defects have occurred because the policy focused only on quantity supply, while neglected quality control. In addition, disputes related to various defects are increasing. ; accordingly, studies defects of apartment houses have been continuously conducted to solve various problems. In this study, I analyzed the research trends regarding long-term accumulated defects of apartment buildings by keyword network analysis, and suggest implications. As ananalysis method, I collected journal articles using the portal of the Korea Educational and Scientific Information Agency and constructed data analysis by filtering collected academic papers and keyword refinement. Ialso performed visualization modeling for keyword network relationships, connection degree centrality analysis, and mediation centrality analysis. The results revealed that Mortgage, Dispute, Repair, Case, Response, Condensation, Cost, Institution, Standard, and Valuation are the main keywords that characterize apartment housing defects.

• Journal of the Korea Institute of Building Construction
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• v.14 no.3
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• pp.195-206
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• 2014

The main issue of defect dispute is consulting, reviewing, and finally judging as an arbiter. A defect consulting is represented a defect consulting report, but a business custom and a standard of judgment are different each consultants, and have many problems. This study reviews literature studies and institutional researches, set up a research structure. it has 7 indexes that 5 indexes are formal indexes, and the other are qualitative indexed. As a result of case study, formal indexes are respect on the whole. However, each appraiser has different ideas, and, is expected to delay on fixing a construction lawsuit practice. This study suggests to improve a defect consulting report, it is followed. In formal part, suggested to change configuration is adjusted and integrated similar items. In qualitative part, an evaluation system for appraiser and an education program for engineers is suggested.

• Journal of the Korea Institute of Building Construction
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• v.20 no.6
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• pp.515-525
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• 2020

The recent increase in lawsuits and disputes caused by defects in apartment houses has been highlighted as a social issue. To solve this problem, studies were conducted on the type of defects in apartment houses. However, the problem has not been resolved amicably. Accordingly, it was emphasized that it was necessary to lay a groundwork for research on the types of defects by type of construction work in the recently constructed apartment houses and to present countermeasures and preventive measures for defects later. Therefore, this study investigated cases of defects in apartment houses and analyzed types of defects through PMIS and defect reports. The main purpose of the research is to present the causes for major types of defects by identifying the types of defects in apartment houses and to lay the goundwork for the study of countermeasures and preventive measures for each type of defects in the future.

• Proceedings of the Korea Concrete Institute Conference
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• 2009.05a
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• pp.551-552
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• 2009

These days in execution of building works are increasing possibility of defect occurrences. On this, construction safety policy has been enforcing prevention for fault construction. But argument in relation to defects is increasing every day, because regulations for defects are abstract and uncertain. Therefore we analyzed patterns and reasons of defect, researched into question for rational solution about defect responsibility and responsibility period of a warranty in argument.

• Journal of the Korea Institute of Building Construction
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• v.15 no.2
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• pp.209-215
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• 2015

This study was conducted to analyze the actual utilization rate of the deposit for defect repair of apartment complexes and its influential factors. We analyzed the data on enforced defect deposit cases by using one-sample t-test, Pearson's correlation analysis, and simple linear regression analysis. The difference between the deposit amount specified and the enforcement amount actually disbursed was found to about 0.51%. The change rates for short-term costs amounted approximately to $839KRW/m^2$ and 130,000 KRW/household per year, and those for long-term costs were $647KRW/m^2$ and 123,207 KRW/household per year. The results warrant the need for further research on establishing a deposit amount based on actual statistical data.