Laiwu Jinda waterproofing membrane roofing manufacturers to share the specific operational procedures secondary waterproofing What now for the reinforced concrete roof structure plus the old house or building insulation panels, due to disrepair, materials aging and other reasons, the roof leaks water phenomenon is more serious, the need to re-do the whole waterproof layer, which is equivalent to the roof to wear a raincoat in order to achieve the purpose of not leaking. Although the specific construction of secondary water a bit complicated, you must follow the construction steps, we must do leak Laiwu of waterproof board manufacturers to introduce construction steps based on practical experience:! 1, will be used to cover the roof with thermal insulation insulation panels removed, cleaned, and handled with care to the appropriate location on the standby. 2, will be the aging of the original waterproof layer removed from the drum, all the roof clean and rinse with water again. Required to do no oil, dust and rock slag and other debris. 3, brushing water-based paints do grassroots 881PVC cold water, this material can help repair the roof cracked fine pores, has a strong cohesive force and dust effects, the bonding waterproof material more closely. 4, to be dried grass waterproof material, fully paving SBS modified bitumen membrane waterproofing layer. 5, with 911 polyurethane waterproof coating to seal the deal with overlapping edges. The material as a whole the film is good, no seams, having rubber elasticity; ting stretch rate, can adapt to the grass-roots crack and deformation; high bond strength, can effectively waterproof layer membrane to form a whole. 6. After 911 waterproof polyurethane coating and drying, the insulation board back brick kiln bedding place up, and restored to its original look. Old house roof secondary waterproofing price how much? To my company site to see it.