TY - CONF TI - Application of Cause Mapping Method in a Building Project with Prefabricated Slabs C1 - Osaka and Kyoto, Japan C3 - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33) SP - 739 EP - 750 PY - 2025 DO - 10.24928/2025/0248 AU - Melgar-Morales, Mauricio A. AU - Villanueva, Sulyn Gomez AU - Foglia, Saul Ortiz AD - Student Researcher, Faculty of Civil Engineering, Universidad Nacional de Ingeniería, Lima, Peru, mauricio.melgar.m@uni.pe, orcid.org/0009-0007-6491-4134 AD - Quality Leader, DPR Construction, Redwood City, USA, sulyng@dpr.com, orcid.org/0000-0003-2367-9880 AD - Lean Construction Consultant, JOF Consultores, jonathanofoglia@gmail.com, orcid.org/0009-0003-7485-4746 ED - Seppänen, Olli ED - Koskela, Lauri ED - Murata , Koichi AB - This paper explores the application of the Cause Mapping method in a building project with prefabricated slabs in Lima, Peru. Cause Mapping is a root cause analysis technique based on the principle that a "root cause" is typically a system of interconnected factors rather than a single issue. In this case study, the method is used to identify, analyze, and propose solutions to the most recurrent quality defects observed in prefabricated slabs. Common defects identified are fissures in the slabs, misalignments in the modulation with respect to the plans, and incorrectly positioned or non-existent installation points. The study uses interviews and documentary analysis in projects of the construction company under study. The results show that many of the defects arise from discrepancies in the design drawings, manual processes in non-mechanized plants and communication problems between the parties involved. As a response, the study proposes optimizing preconstruction processes, strengthening design review protocols, and promoting the adoption of advanced technologies. A noted limitation of the study is that quality defect data were sourced from company records, which may contain inaccuracies or incomplete information. Future research could benefit from broader data samples and an expanded focus to include other scopes of work. KW - Cause Mapping KW - prefabrication KW - root cause analysis KW - defects KW - quality issues. PB - T2 - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33) DA - 2025/06/02 CY - Osaka and Kyoto, Japan L1 - http://iglc.net/Papers/Details/2402/pdf L2 - http://iglc.net/Papers/Details/2402 N1 - Export Date: 07 June 2025 DB - IGLC.net DP - IGLC LA - English ER -