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, 22, 23, and 24 to be attached to an opening of a building structure 100, wherein the existing frames 21, 22, 23, and 24 includes metal exterior parts 2111, 2211, 2311, and 2411, metal interior parts 2112, 2212, 2312, and 2412, and thermal-insulating connecting members 2113, 2213, 2313, and 2413 that are placed between the exterior parts and the interior parts; new frames 31, 32, 33, and 34 that are attached onto an inner circumference side of the existing frames 21, 22, 23, and 24; and separation prevention fittings 81, 82, 83, and 84 that connect the exterior parts and the interior parts.SELECTED DRAWING: Figure 4

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