To provide a roof sheet body suppressing breakage on a peripheral edge part of a string open hole of a reinforcement belt-like part.SOLUTION: A roof sheet body comprises a sheet main body 24 for covering an object in a roof-state, each of a pair of reinforcement belt-like parts 26, 28 extending in a longitudinal direction is provided on one of both side parts of the sheet main body 24, and on the reinforcement belt-like parts 26, 28, at an interval, a plurality of string open holes 30, 32 are provided. A belt-like member 42 extending in a width direction corresponding to the plurality of string open holes 30, 32 of the pair of reinforcement belt-like bodies 26, 28, is arranged, and each of both end parts of the belt-like member 42 in the width direction of the sheet main body 24 comprises a string communication hole 44, 48 communicated to the string open hole 30, 32 corresponding to the reinforcement belt-like part 26, 28, and a binding member (binding string or the like) is attached through the string open holes 30, 32 of the reinforcement belt-like parts 26, 28 and the string communication holes 44, 48.SELECTED DRAWING: Figure 3【課題】補強帯状部の紐用貫通孔の周縁部における破損を抑えることができる屋根シート体を提供する。【解決手段】屋根状に被うためのシート本体２４を備え、このシート本体２４の両側部に長手方向に延びる一対の補強帯状部２６，２８が設けられ、これら補強帯状部２６，２８に間隔をおいて複数の紐用貫通孔３０，３２が設けられた屋根シート体。一対の補強帯状部２６，２８の複数の紐用貫通孔３０，３２に対応して幅方向に延びる帯状部材４２が配設され、シート本体２４の幅方向における帯状部材４２の両端部には、一対の補強帯状部２６，２８の対応する紐用貫通孔３０，３２に連通する紐用連通孔４４，４８が設けられ、これら補強帯状部２６，２８の紐用貫通孔３０，３２及び紐用連通孔４４，４８を通して結付け部材（結付け用紐など）が取り付けられる。【選択図】図３
