Renovated roof structure between roof and wall
The modified roof structure addresses the challenge of large steps by integrating a vertical cover piece and wall clamp, enabling seamless construction and easy sealant application during roof-to-wall repairs.
Patent Information
- Application Number
- JP2021155293
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-09-24
- Publication Date
- 2025-11-05
- Estimated Expiration
- 2041-09-24
AI Technical Summary
Existing technologies fail to address the issue of a large step formation between the bottom edge of the existing dry exterior material and the water-surface edge of the new roof material during repairs, rendering them ineffective.
A modified roof structure is introduced, featuring a vertical planar cover decorative piece and an upper end bent inward, with a lower end bent towards the interior, forming a long covering material to cover the lower end of the existing dry exterior material, and a wall clamp to cover the side end of the new roof material, ensuring seamless integration.
Enables construction even with large steps, handles tiled roof repairs effectively, and facilitates easy application of sealant through a sealing pocket formation.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a retrofit roof structure for use at the interface between a roof and a wall. [Background technology]
[0002] Wall retaining covers used when repairing the joint between a roof and a wall are generally constructed by covering the upper end of the roof material and the lower end of the wall material with a metal plate formed into a roughly L-shape (see, for example, Patent Documents 1 and 2).
[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-35297 [Patent Document 2] Japanese Patent Application Publication No. 10-8645 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]
[0004] Patent Document 1 relates to a structure for repairing the water-surface portion of an existing roof. Patent Document 2 relates to a waterproofing structure for a eaves. However, it cannot be used when there is a large difference in level between the bottom edge of the existing dry exterior material and the water-surface edge of the new roof material. [Means for solving the problem]
[0005] In order to solve this problem, the present invention provides a structure between an existing dry exterior material and a new roofing material, in which a vertical planar cover decorative piece and an upper end of the cover decorative piece are connected to the roof. outside Bottom bent in the direction Piece And the bottom Piece The tip of the sealing piece is bent upwards. ,mosquito The lower end of the bar decorative piece is bent toward the interior, and a long covering material is formed from the lower cover piece so as to cover the lower end of the existing dry exterior material. In addition, by forming the wall clamp for renovation so as to cover the side end of the existing dry cladding material of the new roof material, the boundary between the existing dry cladding material and the new roof material is covered. The present invention provides a modified roof structure between a roof and a wall, characterized by the above. [Effects of the Invention]
[0006] The roof-to-wall repair structure of the present invention has the following features and effects: (1) Construction is possible even when a large step is formed between the bottom edge of the existing dry exterior material and the water-level edge of the new roof material. (2) It can handle large steps formed in repairs to tiled roofs. (3) A sealing pocket is formed to hold the sealant, making it easier to apply the sealant. [Brief explanation of the drawings]
[0007] [Figure 1] 1 is a cross-sectional view showing a typical example of a modified roof structure between a roof and a wall according to the present invention. FIG. [Figure 2] 1A and 1B are perspective and cross-sectional views showing a representative example of a covering material used in a repaired roof structure between a roof and a wall according to the present invention. [Figure 3] 1A and 1B are a front view and a perspective view showing a representative example of a new roofing material used in a roof-to-wall repair roof structure according to the present invention. [Figure 4] FIG. 1 is a cross-sectional view showing a representative example of a new roofing material used in a roof-to-wall repair roof structure according to the present invention. [Figure 5] A cross-sectional view showing the installation state of new roof material used in the repaired roof structure between the roof and wall according to the present invention. [Figure 6] A cross-sectional view showing the installation state of new roof material used in the repaired roof structure between the roof and wall according to the present invention. [Figure 7] FIG. 10 is a cross-sectional view showing another embodiment of a modified roof structure between a roof and a wall according to the present invention. [Figure 8] FIG. 10 is a cross-sectional view showing another embodiment of a covering material used in a repair roof structure between a roof and a wall according to the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0008] The following describes in detail the repaired roof structure between a roof and a wall according to the present invention, using the drawings. Figure 1 is a cross-sectional view showing a typical example of the repaired roof structure between a roof and a wall according to the present invention. α is the existing roof foundation, consisting of rafters α1, sheathing boards α2, existing underlayment α3, and existing flashing α4, from which the existing roofing materials have been removed.
[0009] A is a new roofing material, a drywall material with insulation material 2 formed between the backing material 3 of metal exterior material 1. B is waterproof plywood, C is underlayment material, M is flat door, S is sealant, D is support wood, E is wall clamp for renovation, F is support wood, and G is the existing dry exterior material. The existing underlayment material α3 and underlayment material C are waterproof sheets such as roofing sheets.
[0010] As shown in Figures 3(a) and (b) and Figures 4(a) and (b), the new roofing material A is a metal roofing material 1, such as a metal plate (color steel plate, copper plate, aluminum plate, titanium plate, stainless steel plate, sandwich steel plate, clad steel plate, etc.), formed into a long shape by roll forming, press forming, extrusion forming, etc.
[0011] To explain further, the metal roofing material 1 is in the form of a long plate, and as shown in Figures 3(a), (b), 4(a), and (b), it has a decorative surface 4 that is approximately vertical and flat, a back surface 5, a stepped decorative surface 6 formed by bending the underwater end of the decorative surface 4 toward the interior, and an insertion edge 7 that is bent in an approximately C-shape to open toward the abovewater side, and an approximately U-shaped hook groove 8 that forms a male connecting portion 9 from the decorative surface 4, the stepped decorative surface 6, and the insertion edge 7.
[0012] In addition, at the end of the decorative surface 4 on the water side, there is a fitting groove 10 that fits with the insertion edge 7, which is formed with a cross section that is approximately U-shaped with the tip of the decorative surface 4 opening to the water side, a fitting edge 11 that becomes the upper edge of the fitting groove 10, and a fixing Piece 12 is formed to form a female connecting portion 13.
[0013] The heat insulating material 2 functions as a waterproof material, heat insulating material, reinforcing material, bulking material, soundproofing material, sound absorbing material, cushioning material, fireproofing material, anti-condensation material, etc., and is mainly made of synthetic resin foam. Its material is made of synthetic resin foam such as styrene foam, polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, etc., and is formed by mixing a resol-type phenol concentrate with a hardener and a foaming agent, discharging it onto the surface material or the back side of the back material, and heating it to react, foam, and harden.
[0014] In addition, various flame retardant materials such as lightweight aggregates (perlite granules, glass beads, gypsum slag, talc, silica balloons, aluminum hydroxide, etc.) and fibrous materials (glass wool, rock wool, carbon fiber, graphite, etc.) can be mixed into the insulating material 2 to improve fire resistance and fire prevention.
[0015] The backing material 3 is made of one or more laminates of kraft paper, aluminum vapor deposition paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber nonwoven fabric, etc., or a waterproof or flame-retardant treated sheet.
[0016] Reference numeral 14 denotes a waterproof connection portion, 15 denotes a cover connection portion, and 16 denotes a waterproof protrusion portion.
[0017] As shown in Figures 5 and 6, in order to connect the roof from the underwater side to the abovewater side, insert the insert edge of the new roof material A on the abovewater side into the fitting groove 10 of the new roof material A on the belowwater side that is fixed as shown in Figure 5. 7 The installation is carried out by sequentially performing the steps of fitting the fixing pieces 12 to the sheathing board α2 with the fixing tool β.
[0018] In addition, the horizontal installation of the new roof material A is performed by connecting the cover connection portion 15 of the new roof material A over the waterproof connection portion 14 of the fixed new roof material A as shown in Figure 6.
[0019] As shown in Figs. 2(a) and 2(b), the cover material K is made up of a vertical, flat cover decorative piece K1 and a cover decorative piece K2. outside Bottom bent in the direction Piece K2 and the bottom Piece It is formed into a long shape from a sealing receiving piece K3 bent above the tip of K2, a tongue piece K4 formed by folding the upper end of the sealing receiving piece K3 toward the indoor side, and a lower cover piece K5 formed by bending the lower end of the cover decorative piece K1 toward the indoor side.
[0020] The existing roof underlayment α consists of rafters α1, sheathing boards α2, existing underlayment α3, and existing flashing α4, and was created by removing the existing roofing material. After the existing roofing material was removed, a large space was created between the bottom of the roof and the existing dry exterior material G, and there was no way to cover this area. Therefore, after installing new roofing material A, support beams D, renovation wall support E, and sealing S, a covering material K was used to cover the space between the renovation wall support E and the existing dry exterior material G.
[0021] As shown in Figure 1, the construction involves fixing a support F with a fixing device β between the renovation wall support E and the lower end of the existing dry exterior material G. After that, the cover decorative piece K1 of the support F is fixed with the fixing device β, and the sealant S is continuously formed in the sealing pocket SP between the surface of the existing dry exterior material G and the sealing support piece K3 of the cover material K, completing the construction.
[0022] The above description is merely one example of the exterior material A used in the renovated roof structure between the roof and wall according to the present invention, and it can be formed as shown in Figures 7 and 8(a) to (d). [Explanation of symbols]
[0023] α Existing roof underlayment α1 Rafter α2 Field board α3 Existing underlayment material α4 Existing flashing β Fixture A New roofing material B. Waterproof plywood C Underlayment D receiving tree E Renovation wall clamp F receiving tree G Existing dry exterior materials K Cover Material K1 cover decorative piece K2 bottom piece K3 Ceiling Receptacle K4 tongue piece K5 Lower cover piece M Flat type door S sealant SP Sealing Pocket 1. Metal roofing materials 2. Insulation 3 Backing material 4 Cosmetic surface 5 Back side 6 Stepped decorative surface 7 Insert 8 Hook groove 9 Male connection 10. Fitting groove 11 Mating edge 12 Fixed piece 13 Female connection part 14 Waterproof connection 15 Cover connection part 16 Waterproof convex part
Claims
[Claim 1] In a structure between an existing dry exterior material and a new roof material, a long covering material is formed from a vertical, flat cover decorative piece, a bottom piece with the upper end of the cover decorative piece bent toward the outdoors, a sealing receiving piece with the tip of the bottom piece bent upward, and a lower cover piece with the lower end of the cover decorative piece bent toward the indoors, so as to cover the lower end of the existing dry exterior material, and a renovation wall clamp is formed to cover the side end of the new roof material, thereby covering the boundary between the existing dry exterior material and the new roof material.
Citation Information
Patent Citations
The balcony - mounting wall throating structure
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Water section repairing construction of roof
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Water-proof structure for underfloor space
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