| 摘要 |
PROBLEM TO BE SOLVED: To provide an underlayer buffer material for coating waterproofing construction, which can prevent wrinkles from being formed in a waterproof-agent coating surface, and a coating waterproofing construction method. SOLUTION: This underlayer buffer material 10 is equipped with a three-layer structure laminate in which a synthetic resin film layer B12, a thermocompression-bonded nonwoven fabric layer A11 and a nonwoven fabric layer C13 are integrated together in such a manner that the synthetic resin film B12 is sandwiched between the nonwoven fabric layer A11 and the nonwoven fabric layer C13. The nonwoven fabric layer C13 is confounded with a mass per unit area of 100 g/m<SP>2</SP>or more. In the nonwoven fabric layer A11, a mass per unit area [A] is in the range of >20 g/m<SP>2</SP>and≤100 g/m<SP>2</SP>, and a ratio of embossed area is 5% or more. In the synthetic resin film layer B, a thickness [B] is in the range of≥10μm and <50μm. Additionally, the mass per unit area [A] and the thickness [B] satisfy the inequality (1): [A]/[B]>2. COPYRIGHT: (C)2009,JPO&INPIT
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