| 摘要 |
PROBLEM TO BE SOLVED: To provide a roof board material that may be installed readily and offers excellent waterproofing performance and high strength to withstand loads of blowing winds and snow, at a connected part between the roof board materials.SOLUTION: A roof board material has a first connecting protrusive streak 2 on one end side in a width direction, and a second connecting protrusive streak 3 on the other end side. The connecting protrusive streak 2 has a curved part 21 formed on one side of a crown part 20, and a vertical wall part 22 formed on the other side. A groove part 23 is formed that inclines upward in a depth direction from an opening of the groove, at an intermediate location in a lower part or a bottom end of the curved part 21. The connecting protrusive streak 3 has a body part 30 formed in a curved form, and a groove fitting hook part 31 disposed to continue from a free end side, extending in an inward direction of the body part 30. The groove fitting hook part 31 has an edge side part 310 bent upward in a U-shape, and is formed to be engaged with the groove part 23 of the connecting protrusive streak 2 of the adjacent roof board materials.SELECTED DRAWING: Figure 1 |
