Ailong Lv

1 Introduction Waterproofing of roofs, balconies, and wet areas (e.g., bathrooms and kitchens) is essential for building serviceability, because prolonged hygrothermal exposure can deteriorate waterproofing layers and eventually lead to leakage [1]. Such moisture ingress not only increases maintenance and remediation demands but is also linked to adverse health outcomes for occupants [2, 3]. In this context, polymer cement waterproof coatings have been widely adopted.