Mobile QR Code QR CODE : Korean Journal of Air-Conditioning and Refrigeration Engineering
Korean Journal of Air-Conditioning and Refrigeration Engineering

Korean Journal of Air-Conditioning and Refrigeration Engineering

ISO Journal TitleKorean J. Air-Cond. Refrig. Eng.
  • Open Access, Monthly
Open Access Monthly
  • ISSN : 1229-6422 (Print)
  • ISSN : 2465-7611 (Online)
Title An Analysis of Construction Defects of Residential Mechanical and Plumbing Systems : A Preventive Guideline for Practitioners
Authors Jung Hee Choi ; Sean Hay Kim
Page pp.45-53
ISSN 1229-6422
Keywords 공사 하자 ; 공동주택 ; 건축기계설비 ; 건축기계?전기?소방설비 ; 예방 가이드라인 ; 비포 서비스 Construction defect ; Residential buildings ; Mechanical and Plumbing system ; MEP/FP ; Preventive Guideline ; Before Service
Abstract While MEP/FP construction scope and cost for apartments are getting increased, defect disputes between owners and constructors are also getting increased. More than often, owners' dissatisfaction over construction defects and constructor's reaction tends to increase filing lawsuits. This study aims to provide an analysis of residential building construction defects, in particular for mechanical and plumbing works, which are classified into nine groups and typed according to defect severity to investigate the causality. Based on the analysis, this study suggests a preventive and continuous construction quality improvement guideline for practitioners. The defect data has been collected for about 20,050 apartments units built by A construction firm from 2010 to 2017. 84.6 percent of the collected defects are found in sanitary plumbing, drain and sewage piping, hot water piping, and unit ventilator and fan installation works; the detailed defects for each work are classified and the causes are carefully investigated. Eventually the database containing case studies, causes and effects, preventive measures, and warranty measures has been developed. This database can be used as an education material for agents in charge of the quality warranty on after project delivery as well as the quality assurance right before project delivery. It is authors' strong recommendation that the construction defect database should be built and managed at the enterprise level, the experience and knowledge of which needs to be shared by all stakeholders.