How to do roof waterproofing with asphalt

Before construction, the waterproofing asphalt should be cut compared to the location to be filled, and measure the size that should be used. Afterwards, the use of flame gun will waterproof asphalt and repair surface for high temperature heating, to melt the purpose of color cotton, make asphalt perfect and grass-roots level fusion. 2. in the asphalt of the edge of the use of sealing paste to fill in, at this time to brush on the waterproofing coating, waterproofing coatings should be brushed enough to reach a very good waterproofing effect of the two times, while trying to keep the surface of the asphalt is clean and tidy. 3. waterproofing layer and then covered by a layer of protective layer, and after that, the waterproofing effect of the whole project should be carried out. To the waterproof effect of the entire project waterproofing test, test time for twenty-four hours, the water level in this time period to maintain a stable, then, at this time, the construction is completed.