Roofing construction: waterproof grass requires a solid firm, can not afford to sand, no Honeycomb, polyurethane waterproof coating index, substantially dry, must remove floating dust; old roofing must remove the original damaged waterproof layer aging, damaged grass requires first with cement repair. Before the large-scale construction must be diluted with water after the above coating base, in order to enhance its adhesion with the grassroots; dilution ratio: waterproof paint: water = 1: 2-3; roofing binned caulking seam first with ointment, waterproof material plus non-woven fiberglass cloth reinforcement layer of polyurethane waterproof coating, reinforcing layer requires between 20 and 30 centimeters in width. Then carefully handle the details in advance, polyurethane waterproof coating waterproof layer indoor range, such as out of the water hole, extending roof side piping, structural stress concentration construction site, the more hidden corners and other parts of spacious and easier to produce other leaking parts , then the conventional brushing large area. Sixth, the coating method: Brushing first waterproof coating slightly above stirring to evenly up and down, a single set of polyurethane waterproof coating, brushing method: Available spraying, brushing, knife coating, roll spreadability can; such as waterproof coating too thick is not easy to construction, it can be diluted with water so that it is appropriate to facilitate coating. Seven, the amount of: the number and thickness of the coating to the design requirements prevail, the general requirements in 2-3KG, between the amount of the thickness of 1.2-1.5mm. VIII Note: 1, must pay attention to weather changes, not rain within four hours after waterproof material coating; it must be dry before brushing on a wash down together; 2, the temperature is not easy to paint a negative construction; 3, Stir using a chart for an 1:00 polyurethane waterproof coating, polyurethane waterproof coatings, waterproofing provided by the new Manulife Manulife Shouguang City, new waterproof materials plant. Manulife Shouguang City, new waterproof materials plant (www.sghongli.com) (www.sghongli.com) strong, credible, Shandong Weifang waterproof, moisture-proof materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Manulife new waterproof and you hand into the brilliant, for a better future!