A Study of Quality Control Procedures for Different Waterproofing Methods Using Case Studies

Waterproofing failures are a pervasive problem in the construction industry, leading to costly repairs, structural damage, and safety risks. While some research exists, there needs to be more focus on identifying the most frequent failure areas and their root causes. This research addresses this gap by developing a robust quality framework for waterproofing systems. A thorough literature review established technical and procedural best practices. Subsequently, a Quality Management System (QMS) specifically for waterproofing was designed to align with ISO 9001:2015 standards. Seven case studies were analyzed to identify common quality failures, such as inadequate curing, incorrect mix usage, and insufficient testing. An expert survey employing the Relative Importance Index (RII) method confirmed these findings. Finally, expert interviews were conducted to develop actionable strategies for effective QMS implementation, emphasizing rigorous curing protocols, enhanced training and supervision, and proactive inspection practices. This research provides a comprehensive quality framework to guide industry professionals, aiding in reducing waterproofing failures and optimizing the longevity of waterproofing systems.