| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening building material which can make a meeting stile thin and which has proper heat insulating properties.SOLUTION: An opening building material includes outer and inner sashes 20 and 21. The outer and inner sashes 20 and 21 are heat insulation sashes. A meeting stile 4 of the inner sash 21, which is made of a metal shape, has double glazing 7 held in a glass holding groove 15, and has a resin member 16 attached to an outdoor side surface. The resin member 16 has a taking-in part 19 that takes in a fin 18 of an engaging part 18 integrated with a meeting stile 17 of the outer sash 20.SELECTED DRAWING: Figure 2 |
