JP7764178B2 - Renovated roof structure between roof and wall - Google Patents

Description

The present invention relates to a retrofit roof structure used at the joint between a roof and a wall.

When repairing the joint between a roof and a wall, wall retaining covers are typically constructed by covering the top edge of the roof material and the bottom edge of the wall material with a metal plate shaped in an approximately L-shape (see, for example, Patent Documents 1 and 2).

Japanese Patent Application Publication No. 8-35297 Japanese Patent Application Publication No. 10-8645

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 the eaves. However, this cannot be used in cases where a large step is formed between the bottom edge of the existing dry exterior material and the water-surface edge of the new roof material.

In order to solve these drawbacks, the present invention provides a repair roof structure between a roof and a wall , characterized in that in the structure between the existing dry exterior material and the 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 repair wall clamp is formed so as to cover the side end of the new roof material of the existing dry exterior material, thereby covering the boundary between the existing dry exterior material and the new roof material .

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 waterline edge of the new roof material. (2) It can accommodate large steps formed by repairing tiled roofs. (3) Sealing pockets are formed for forming sealant, making it easier to apply the sealant.

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. 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. 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. 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. 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. 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. 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. 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.

The following is a detailed explanation of the roof-to-wall repair structure of the present invention, using the drawings. Figure 1 is a cross-sectional view showing a typical example of a roof-to-wall repair structure of the present invention. α is the existing roof underlayment, consisting of rafters α1, sheathing boards α2, existing underlayment α3, and existing flashing α4, from which the existing roofing materials have been removed.

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 a flat door, S is sealing material, D is receiving wood, E is a wall clamp for renovation, F is receiving wood, and G is an existing dry exterior material. The existing underlayment material α3 and underlayment material C are waterproof sheets such as roofing sheets.

As shown in Figures 3(a), (b) and 4(a), (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.

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 consists of a substantially vertical, flat decorative surface 4, 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 insert edge 7 bent in a substantially U-shape to open toward the abovewater side, and a substantially U-shaped hook groove 8 formed by the decorative surface 4, stepped decorative surface 6, and insert edge 7 to form a male connecting portion 9.

In addition, at the above-water end of the decorative surface 4, a fitting groove 10 is formed that fits with the insertion edge 7, which has an opening at the tip of the decorative surface 4 below the water and is formed with an approximately U-shaped cross section, a fitting edge 11 that forms the upper edge of the fitting groove 10, and a fixing piece 12, forming a female connecting portion 13.

The insulating material 2 functions as a waterproofing material, heat insulating material, reinforcing material, bulking material, soundproofing material, sound absorbing material, cushioning material, fireproofing material, anti-condensation material, etc., and is primarily 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 concentrate of resol-type phenol 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.

In addition, various flame-retardant 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 insulation material 2 to improve fire resistance and fire prevention.

The backing material 3 is made from one or more laminates of materials such as kraft paper, aluminum-coated paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, and glass fiber nonwoven fabric, or a waterproof or flame-retardant treated sheet.

14 is the waterproof connection part, 15 is the cover connection part, and 16 is the waterproof convex part.

As shown in Figures 5 and 6, to connect the roof from below the waterline to above the waterline, the insertion edge 7 of the new roof material A on the above-water side is fitted into the fitting groove 10 of the new roof material A on the below-water side, which is fixed as shown in Figure 5, and the fixing piece 12 is fixed to the sheathing board α2 by the fixing device β.

Furthermore, the horizontal installation of new roofing material A involves connecting the cover connection portion 15 of new roofing material A over the waterproof connection portion 14 of the fixed new roofing material A as shown in Figure 6.

As shown in Figures 2(a) and (b), the cover material K is formed into a long shape from a vertical, flat cover decorative piece K1, a bottom piece K2 formed by bending the upper end of the cover decorative piece K1 toward the outdoors , a sealing support piece K3 bent above the tip of the bottom piece K2, a tongue piece K4 formed by folding the upper end of the sealing support 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.

The existing roof underlayment α consists of rafters α1, sheathing boards α2, existing underlayment α3, and existing flashing α4, and is the result of removing the existing roofing material. After the existing roofing material was removed, a large space was created between the roof and the bottom edge of 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 will be used to cover the space between the renovation wall support E and the existing dry exterior material G.

As shown in Figure 1, the construction involves fixing a support piece F between the renovation wall support E and the bottom end of the existing dry exterior material G using a fixing device β. The cover decorative piece K1 of the support piece F is then fixed using the fixing device β, and a continuous layer of sealing material S is 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.

The above description is merely one example of the exterior material A used in the roof-to-wall repair roof structure of the present invention, and can be formed as shown in Figures 7 and 8(a) to (d).

α Existing roof underlayment α1 Rafter α2 Sheathing board α3 Existing underlayment α4 Existing flashing β Fixing device A New roofing material B Waterproof plywood C Underlayment material D Support wood E Wall support for renovation F Support wood G Existing dry exterior material K Covering material K1 Cover decorative piece K2 Bottom piece K3 Sealing support piece K4 Tongue piece K5 Bottom cover piece M Flat panel door S Sealing material SP Sealing pocket 1 Metal roofing material 2 Heat insulating material 3 Back material 4 Decorative surface 5 Back surface 6 Step decorative surface 7 Insert edge 8 Hook groove 9 Male connecting part 10 Fitting groove 11 Fitting edge 12 Fixing piece 13 Female connecting part 14 Waterproof connecting part 15 Cover connecting part 16 Waterproof convex part

Claims (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 .