| 摘要 |
PROBLEM TO BE SOLVED: To provide a waterproofing method for a three-face intersecting structure, according to which excellent waterproofing properties and airtightness can be imparted to a three-face intersecting peripheral portion of the three-face intersecting structure with good efficiency and with ease. SOLUTION: The waterproofing method for the three-face intersecting structure is carried out by sticking a waterproof airtight adhesive sheet having spreadability, to the three-face intersecting peripheral portion including a corner point at which three faces of the three-face intersecting structure abut on each other, and a peripheral portion of the corner point. The spreadable waterproof airtight sheet 1 is formed of a substrate 2, an adhesive layer 3 formed on one surface of the substrate 2, and a release liner 4 protecting a surface of the adhesive layer 3. The spreadable waterproof airtight sheet 1 is double-folded such that the release liner 4 is located outside, and it is further folded into four layers. Then a folded corner 6c in a four-folded state is matched with the corner point of the three-face intersecting structure, and a linear folded portion 6b is matched with a linear corner along which any of the two faces of the three-face intersecting structure abut on each other. Further the spreadable waterproof airtight sheet 1 is developed and stuck to the three-face intersecting structure while allowing the release liner 4 to be released therefrom. COPYRIGHT: (C)2006,JPO&NCIPI |
