Renovation fitting

Abstract

To provide a renovation fitting which includes existing frames having metal exterior parts, metal interior parts, and thermal-insulating connecting members located between the exterior parts and the interior parts, and which can ensure fire resistance.SOLUTION: A renovation fitting 1 includes: existing frames 21, and 22 to be attached to an opening of a building structure 100; new frames 31, and 32 that are attached to the inner circumference of the existing frames 21, 22, and include metal exterior parts 311, and 321 metal interior parts 312, and 322, and thermal-insulating connecting members 313, and 323 that are placed between the metal exterior parts 311, and 321 and the metal interior parts 312, and 322; and separation prevention fittings 8, and 35 for connecting the outdoor parts 311, and 321 and the indoor parts 312, and 322.SELECTED DRAWING: Figure 3

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