| 摘要 |
PROBLEM TO BE SOLVED: To provide a renovated sash unit or the like capable of being easily mounted on an existing frame from an indoor side.SOLUTION: This renovated sash unit includes a head joint member which is interposed between an existing head and a renovated head, and a sill joint member which is interposed between an existing sill and a renovated sill. In a renovated frame fitted with the sill joint member, the renovated head and the head joint member, which face each other when upper portions are moved to an outdoor side from an indoor side, are fixed between the existing head fitted with the head joint member and the existing sill. |
