| 摘要 |
<p>The present invention relates to a method for constructing a water-proof layer and prevents deformation of the waterproof layer by a rapid change in ambient temperature or an impact as non-woven fabric formed between a butyl rubber sheet and urethane in the middle of the waterproof layer absorbs shock during waterproofing construction for forming the water proof layer on a floor of an object to be waterproofed. Since a lattice-shaped degastification sheet is formed in the lower part of the urethane to remove gas and prevent gas generation in the lower part of the urethane, the life of the waterproof layer is lengthened by preventing the lower part of the urethane from being deformed due to gas. The present invention comprises: a step of primarily coating the floor of the waterproof object with a primer (20); a step of bonding the butyl rubber sheet (30) on the primer (20); a step of bonding the non-woven fabric (40) on the butyl rubber sheet (30); a step of forming the lattice-shaped degastification sheet (42) on the non-woven fabric (40); a step of spreading the urethane (50) on the exposed surface; and a step of coating a protection layer (60) on the urethane (50).</p> |
