将沥青类或高分子类防水材料浸渍在胎体上，制作成的防水材料产品，以卷材形式提供，称为防水卷材。根据主要组成材料不同，分为沥青防水卷材、高聚物改性沥青防水卷材和合成高分子防水卷材;根据胎体的不同分为无胎体卷材、纸胎卷材、玻璃纤维胎卷材、玻璃布胎卷材和聚乙烯胎卷材。
The product of waterproof material made by impregnating asphalt or polymer waterproof material on the carcass is provided in the form of coiled material, which is called waterproof coiled material. According to the different main materials, it is divided into asphalt waterproof roll, polymer modified asphalt waterproof roll and synthetic polymer waterproof roll; according to the different carcasses, it is divided into carcass free roll, paper roll, glass fiber roll, glass cloth roll and polyethylene roll.
防水卷材要求有良好的耐水性，对温度变化的稳定性(高温下不流淌、不起泡、不淆动;低温下不脆裂)，一定的机械强度、延伸性和抗断裂性，要有一定的柔韧性和抗老化性等。
Waterproofing membrane requires good water resistance, stability of temperature change (no flow at high temperature, no foaming, no movement), low temperature brittle fracture, certain mechanical strength, elongation and fracture resistance. It should be flexible and anti-aging.