Waterproof layer is required to cover the waterproof sealing material

Waterproof layer is basically a cheap and the advantages of convenient construction, but often is often a result of the scene to determine the experience lack of failure, the main or any waterproof material in ultraviolet and nature environment, if direct exposure will accelerate aging.

And waterproof material after the application for be cover, such as: emulsified asphalt, rubber asphalt, waterproof material meshwork carpet and so on), it will prolong the service life of the waterproof material layer, which is why some of the old buildings with overlay asphalt waterproof material, after a decade or two still does not see infiltration dew reason. However, in addition to the waterproof layer above the cover of the protection, although the construction cost of the more expensive shortcomings, but in the long-term economic benefits, it is worth it.