Analysis and Solutions for Peeling and Wrinkling of Acrylic Exposed Roof Waterproof Coatings

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Recently, industry professionals have analyzed the common peeling and wrinkling problems of exposed acrylic waterproof coatings on roofs, and summarized key causes and construction guidelines to improve the quality of roof waterproofing projects. Acrylic coatings are widely used for roof waterproofing, yet peeling and wrinkling frequently occur due to improper operations. First, working in bad weather is a major cause. Rainfall before the coating fully cures will damage the film structure. The expanding water vapor as temperature rises will lift the coating and cause defects. Second, poor base surface treatment, such as sanding and excessive dust, will reduce adhesion and lead to delamination. Moreover, thin single-coat application causes pinholes and cracks, failing to form a reliable waterproof layer. Experts remind construction teams to carry out construction on consecutive sunny days. Reinforce the base surface with interface agents and repair mortar in advance. The "one fabric and three coats" technology is recommended to ensure adequate film thickness and integrity, so as to effectively prevent common waterproofing failures. https://www.tiktok.com/@mia_iota/video/7597717976720149782

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