OPENING PART WATERPROOFING DEVICE AND OPENING PART WATERPROOFING SHEET

摘要

A waterproof device for an opening includes: a sheet 10 placed over an opening 2, the opening making an interior and an exterior of a structure 1 communicate and being opened and closed by an opening/closing member 4; and a holding part 20 that holds the sheet for the structure at a position exterior of the opening/closing member, wherein the holding part holds the sheet so that the sheet covers a predetermined area which is a lower end part in a vertical direction of the opening/closing member and a part of the structure adjacent to the predetermined area together to close a lower end area in the vertical direction of the opening and so that a lower end part 13 in the vertical direction of the sheet extend along a floor toward the exterior.