The Code for Construction of Residential Decoration Projects, numbered GB50327-2001, was implemented on May 1, 2002. This standard provides essential guidelines for residential construction and renovation, ensuring safety, quality, and durability in building projects. Chapter 6 specifically focuses on waterproof engineering, covering key aspects such as material selection, construction methods, and quality control. Proper waterproofing is crucial in areas like bathrooms, kitchens, and balconies to prevent water damage and maintain structural integrity over time. General Regulations 1. This chapter applies to the waterproofing of toilets, kitchens, and balconies. These are high-risk areas where moisture can cause long-term damage if not properly managed. 2. Waterproofing should be done using a coating film, which ensures even coverage and long-lasting protection against water penetration. 3. All personnel involved in waterproofing work must hold valid professional certifications to guarantee they follow proper procedures and standards. 4. The waterproofing process should only begin after all hidden works—such as floor and wall installations—have been completed, inspected, and approved. This ensures that no underlying issues affect the waterproofing performance. 5. During construction, adequate lighting and ventilation must be maintained to ensure a safe working environment and proper drying of materials. 6. The ambient temperature during construction should meet the technical requirements of the waterproofing materials used. It should not fall below 5°C to ensure optimal adhesion and curing. 7. Waterproofing should be applied in two layers to enhance its effectiveness and reduce the risk of leaks or failures over time. Main Material Quality Requirements The waterproof coatings used must comply with national standards and come with a valid product certification. This ensures that the materials are tested, reliable, and suitable for the intended application. Construction Points 1. The base layer must be smooth and free from defects such as cracks, peeling, or hollow spots. The moisture content should also meet the specific requirements of the waterproofing material being used. 2. Special attention should be given to areas like floor drains, pipe casings, and corners (both internal and external). These locations require an additional waterproof layer to prevent water seepage. 3. The waterproof layer should extend from the floor up the walls by at least 100mm. In bathrooms, the wall waterproofing should be at least 1800mm high to provide full coverage and protection. 4. When applying waterproof mortar, the mix ratio must follow design specifications or manufacturer recommendations. The waterproof layer must adhere firmly to the base, with a smooth and even surface. There should be no air pockets, cracks, or uneven areas, and all corners should be rounded for better performance. 5. The protective layer made of cement mortar should meet the design requirements in terms of thickness and strength. This layer helps protect the waterproofing system from mechanical damage and environmental factors. Standards for Waterproof Products Several industry standards apply to waterproof materials, including: - "Polymer Cement Waterproof Mortar" (JC/T 984-2005), which is divided into Class I (single-component) and Class II (two-component). - "Polymer Cement Waterproof Coating" (JC/T 894-2001), categorized into Type I (polymer-based) and Type II (cement-based). These standards ensure that the products used are of high quality, durable, and suitable for their intended use in residential construction projects. Welcome to our website, where we specialize in the design and manufacturing of high-quality PVC mats. And our custom Pvc floor mats are designed to enhance the overall look and comfort of your home or office space. We understand that a well-designed floor mat can make a significant difference in the way you feel about your space. That's why we've spent years developing our expertise in this field and are proud to offer our customers a wide range of options to choose from. Custom PVC Floor Mat,Custom PVC Floor Mats,Customized Pvc Rolls,Customized Mats Rolls Jiangyin Yining E-Commerce Co., Ltd , https://www.pvcmatyining.com