Waterproof material problems and many construction safety hazards

According to the results of the AQSIQ's random inspection of the quality of construction waterproofing membrane products in recent years, the qualified rate of physical quality sampling of products was 94.6% in 2008, 85.7% in 2009, and 85.3% in 2010. The main performance was solubles. Content, impermeability, tension, elongation, etc. do not meet the standard requirements.

The marketing director of a professional waterproof company told reporters that waterproof coatings currently have no requirements for production licenses. Compared with waterproof membranes, waterproof coating companies are smaller, less controlled, and market conditions are more confusing.

The "Technical Specification for Waterproofing of Building Interiors" (CECS 196:2006), which began in April 2006, specifies the waterproof materials used in bathrooms, kitchens, and swimming pools. Waterproof materials required for use in architectural interior projects shall have product qualification certificates and factory inspection reports. The varieties, specifications, and performance of materials shall comply with the current national product standards and design requirements; the waterproof material package shall have obvious signs, and the content of the marks shall include the product name. , plant name address, lot number, shelf life and implementation standards.

In addition to the waterproof quality of the waterproof material, the waterproof construction personnel are not professional and the construction quality is not up to the standard. This is also an important cause of water leakage.