1、具有优秀的耐候性，对光、热、臭氧等应具有肯定的承受能力；
1, with good weather resistance, light, heat, ozone and other should have a certain ability to withstand;
2、具有抗水渗透和耐酸碱性能；
2, with water permeability and resistance to acid and alkali resistance;
3、对外界温度和外力具有肯定的适应性，即材料的拉伸强度要高，断裂伸长率要大，能承受温差转变以及各种外力与下层伸缩、开裂所引起的变形；
3, the external temperature and external force has a certain adaptability, that is, the tensile strength of the material should be high, the elongation at break is large, can withstand the change of temperature and various external forces and the base expansion, cracking caused by the deformation;
4、整体性好，既能保持自身的黏结性，又能与下层牢固黏结，同时在外力作用下，有较高的剥离强度，形成稳固的不透水整体。
4, the integrity of the good, not only to maintain their own bond, and can firmly bond with the grass roots, while the external force, a higher peel strength, the formation of a stable impervious to the whole.
