장수명 주택 인증제도 내구성 항목 개선을 위한 현행 기준 분석 = Analysis of Current Standards to Enhance Durability in the Long-Life Housing Certification System

다국어 초록 (Multilingual Abstract)

This study aims to evaluate the durability standards of the Long-Life Housing Certification System, established in 2014 and in operation since 2015, and to propose improvement directions. Although nearly a decade has passed since the introduction of the Long-Life Housing Certification System, and durability-related design and specification standards have been newly established, the durability criteria of the certification system remain unchanged since 2014. This discrepancy makes it difficult to obtain certification in actual construction practice. The research methodology involved a literature review to identify the legal minimum standards for current concrete durability, followed by a comparative analysis with the durability evaluation items of the Long-Life Housing Certification System. Additionally, expert consultations and user feedback surveys were conducted to identify field problems and improvement requirements. The analysis revealed several issues: the current Grade 4 minimum standards under the certification system differ from legal standards; design compressive strength standards for chloride exposure areas are lacking, and the grading methods used for evaluating construction-phase items are inappropriate. Accordingly, this study proposes improvements such as aligning durability criteria with legal standards, supplementing chloride area standards, and streamlining the evaluation criteria.