JPH0320541B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for renovating an aging outer wall of a building.

Generally, when the exterior wall of a building, which is made of exterior wall materials such as mortar and tiles, has aged and cracked or peeled off, the affected areas are partially repaired, but the color tone differs from other parts and the appearance The building lacked harmony and repaired areas were obvious, which spoiled the building's appearance and left it unsightly.

In addition, if the entire exterior wall material is removed and new exterior work is performed, it will require long-term construction work and a huge amount of money.Furthermore, the removal of the exterior wall material will cause noise and dust, which will affect the inside and outside of the building. There were also significant negative effects.

Therefore, in view of the drawbacks associated with conventional building exterior wall renovations, the present invention has been developed to shorten the construction period, reduce construction costs, reduce noise and dust generation, and provide a new exterior wall with an excellent finished appearance. With the purpose of constructing a new building, we have devised a unique method of renovation.

That is, the method of the present invention attaches a support for attaching the exterior material to the outer surface of the old exterior wall of the building without removing the exterior wall material, and uses this support to attach the exterior material to the old exterior wall of the building. It is characterized by continuously covering the outer surface of the outer wall.

The present invention will be described below based on illustrated embodiments.

In addition, in this example, not only the side surface of the old exterior wall, but also a top exterior material with a covering part that covers the top surface of the old exterior wall and a corner top exterior material are connected to the upper ends of the side exterior material and corner side exterior material. In addition, a lower surface cladding material and a lower surface cladding material for corners, which are equipped with a cover part that covers the lower surface of the old exterior wall, are connected to the lower ends of the side exterior material and corner side cladding material to cover the upper and lower surfaces of the exterior wall. It is also a continuous coating.

The old exterior wall 1 shown in the figure is a balcony installed on the side of the building, and the exterior wall materials such as mortar and tiles of this old exterior wall 1 are left as they are without being removed, and a new exterior material is applied to the exterior of the old exterior wall 1. Mounting support A is attached.

This support A consists of an L-shaped bracket 2 fixed to the old outer wall 1 and a through member 3 having an L-shaped cross section and a length corresponding to the vertical dimension of the old outer wall 1. 3a has a horizontal long hole 4
A plurality of brackets 2 are provided, and the mounting position with the bracket 2 can be adjusted in the vertical and horizontal directions. Further, the other piece 3b of the through member 3 is provided with a groove 5 opening at the side edge, into which a bolt 6 for attaching the side exterior material B can be inserted.

The side exterior material B is formed of a long plate-like extruded shape, and the upper part of the face plate is bent toward the building side, and the upper end is connected to an empty piece facing the outdoor side. A recessed groove 8 is formed which opens into the building, and an entry groove 9 through which the head of the bolt 6 passes is provided on the building side of the recessed groove 8. In addition, a fitting groove 12 that opens downward is formed in the lower part of the face plate by connecting a support piece 11 with a molded tight material 10 on the building side and hanging a draining fin 11' on the outdoor side. ,
The fitting groove 12 has a side exterior material B located on the lower side.
The above-mentioned protruding piece 7 can be fitted therein.

On the other hand, as shown in FIG. 5, the top exterior material C connects leg walls 14 and 15 to the indoor and outdoor sides of the somewhat inclined covering portion 13 spanning the side exterior material B and the upper surface A of the old exterior wall 1, respectively. The lower part of the indoor side leg wall 14 is provided with a caulking material filling groove 16 which is opened on the lower surface, and the lower part of the outdoor side leg wall 15 is provided with a water return groove 17 which is also opened downward. be done.

In addition, the lower surface exterior material D spans the side surface exterior material B and the lower surface B of the old exterior wall 1, and the walls 1 rise on the indoor and outdoor sides of the covering portion 18, which is sloped slightly downward toward the outdoor side.
9 and 20 are arranged in series, and the indoor rising wall 19 is provided with a mounting portion 22 to a mounting bracket 21 fixed to the lower surface of the old outer wall 1. The upper part of the outdoor side rising wall 19 is formed in the same structure as the upper part of the side exterior material B, and includes a protruding piece 7a, a groove 8a opening to the outdoor side, and a passage groove for the head of the bolt 6 to pass through. It has 9a.

In addition, 23 in FIG. 5 is a drain port provided at the outdoor end of the cover part 18, and 24 is a draining piece provided vertically on the outdoor side of this drain port 23.

Then, each of the exterior materials B, C, and D is attached as follows.

First, the lower exterior material D is to be installed.
The bolt 6 that has passed through the passage groove 9a of the outdoor rising wall 20 is inserted into the groove 5 provided in the through member 3 of the support A and tightened with a nut, and the indoor rising wall 19 is attached to the lower surface of the old outer wall 1. B. Fasten it to the fixed mounting bracket 21.

Next, the lower opening fitting groove 12 of the side facing material B is fitted into the upper end protrusion 7a of the lower facing facing material D, and
The upper part of the side exterior material B is connected to the through member 3 using a bolt 6 whose head is passed through and engaged with the insertion hole 9. In the same way, other side exterior materials B and B are stacked one after another on top of the side exterior material B, and the support A
It is installed on.

Finally, the lower end of the outdoor side leg wall 15 of the top exterior material C is connected to the upper end of the side exterior material B in an overlapping state, and the indoor side leg wall 14 is fixed to the upper surface A of the old exterior wall 1 using a connecting metal fitting 24. The caulking material filling groove 16 is filled with caulking material 28, and the old outer wall 1
Maintain a watertight seal between the

In addition, when connecting the lower end of the outdoor side leg wall 15 of the upper surface exterior material C to the upper end of the side exterior material B, in order to facilitate the installation work of the upper surface exterior material C, the side exterior The protruding piece 7 of material B has been removed in advance.

In this way, the outer surface of the old outer wall 1 is covered with the side facing material B at regular intervals via the support A,
The upper surface of the old exterior wall 1, the upper part of the gap between the side exterior material B and the old exterior wall 1, and the upper part of the support body A are covered with the upper surface exterior material C, and the lower surface of the old exterior wall 1, the side exterior material B, The lower part of the gap with the old outer wall 1 and the lower part of the support body A are covered with a lower exterior material D.

In addition, at the overlapping connection portion between the lower surface exterior material D and the side surface exterior material B, and at the overlap connection portion between the side surface exterior materials B and B, there is a water return opening to the outdoors by the respective projecting pieces 7, 7a and the lower edge of the face plate. A space 25 is formed, and similarly, a water return space 25a that opens to the outdoors is also formed at the overlapping connection portion of the top exterior material C and the side exterior material B.

By the way, if the old external wall 1 is large in the vertical direction, it is sufficient to increase the number of side facing materials B or use side facing materials B with a large height dimension, but if the old external wall 1 is long in the horizontal direction For each exterior material B, C, D
It is necessary to connect them horizontally. At this time,
The connecting portion is designed to prevent rainwater from entering, an example of which is shown in FIGS. 6 and 7.

The end faces of the adjacent side facing materials B, B face each other at a constant interval, and on each end face side, the passage groove 9 in the upper part and the mold support piece 11 in the lower part are partially cut out. The cutout plate E is attached so as to fit into the cut out portion and span the adjacent both side exterior materials B, B.

The cut plate E has a plurality of protruding strips 2 on the outdoor surface of the substrate 26 with a length corresponding to the height dimension of the side exterior material B.
7 are arranged in a row, the upper part of which is bent in accordance with the bent shape of the side facing material B. Then, this cut plate E is screwed to the building side of one side cladding material B in a state where it is in contact with the passage groove 9 and the cut end of the cross-shaped support piece 11, and is screwed to the other side cladding material B. In contrast, it simply hit the side of the building. In addition, in this other side exterior material B, a space is provided between the cut end of the passage groove 9 and the mold support piece 11 and the cutout plate E in consideration of thermal expansion of the side exterior material B. There is.

On the other hand, in the corner part of the old outer wall 1, the 8th
As shown in the figure, a corner side exterior material B1 formed in a mold in advance is attached to the old exterior wall 1 at a constant interval through a support A, and each side exterior material is attached on both sides of the corner side exterior material B1. Materials B and B are adjacent to each other with a cutout plate E interposed therebetween.

In this way, the area around the old exterior wall 1 is covered with side exterior material B.
and is continuously covered by the corner side facing material B1.

Similarly, as shown in FIGS. 9a and 9b, the upper and lower surfaces of the corner portions of the old outer wall 1 are formed by the upper surface sheathing material C1 for the corner and the lower surface sheathing material D1 for the corner, which are formed in advance into a square shape. As a result, the upper surface, lower surface, and outer surface of the old outer wall 1 are entirely covered with the new exterior material.

Although not shown, there is a gap between the corner upper sheathing material C1 and the upper sheathing materials C, C continuous to both sides, and between the corner lower sheathing material D1 and the lower face sheathing materials D, D continuous to both sides. In the same way as described above, a cutout board is interposed between the two to close off the space between adjacent exterior materials.

As described above, the present invention is for attaching a new exterior material to the outer surface of a building without removing the old exterior wall material, and as a result, the removal work of the old exterior wall is not necessary. This not only makes it possible to shorten the construction period and significantly reduce construction costs, but also has the effect of improving the environment of the construction site by suppressing the generation of noise and dust. The overlapping joint portions of the upper and lower exterior materials are provided with a tight material, and due to the overlapping of the protrusions and the fitting grooves forming the water return space, the watertightness of these overlapping portions is extremely high.

Furthermore, since the method is to stack the exterior materials sequentially from the bottom to the top on the old exterior wall, the upper exterior materials that are overlapped with the protrusions of the lower exterior materials in the fitting grooves during installation will overlap with the projections of the lower exterior materials that have already been installed. The weight is supported by the lower exterior material and it is stable, making the work easier and less dangerous.

In addition, since the outer surface of the old exterior wall is continuously coated with the new exterior material, it covers not only cracks and peeling spots, but also all dirt caused by wind and rain that tends to cause discomfort when seen, improving the finished appearance. It has the advantage of being able to construct new, superior exterior walls.

[Brief explanation of the drawing]

Figure 1 is an external view of the building with new exterior materials.
Figure 2 is a longitudinal sectional view of the outer wall, Figure 3 is a longitudinal sectional view showing how the side cladding material is installed, Figure 4 is a cross sectional view of the same, and Figure 5 is the installed state of the top cladding material and bottom cladding material. 6 is a vertical sectional view showing the joints of adjacent side facing materials, FIG. 7 is a cross sectional view, and FIG. 8 is a cross sectional view showing the corner part of the outer wall. 9 is a perspective view of the lower exterior material for corners, and FIG. 9b is a perspective view of the lower exterior material for corners. Code, A...Support, B...Side exterior material, C...
...Top exterior material, D...Bottom exterior material, B1...Side exterior material for corners, C1...Top exterior material for corners, D1...Lower surface exterior material for corners, 1...Former exterior wall, A. Top surface of former exterior wall, B...The lower surface of the old outer wall.

Claims (1)

[Claims] 1. Without removing the exterior wall material installed on the old exterior wall of the building, a support for attaching the exterior material will be installed on the exterior wall surface, and the exterior material will be attached using this support, and the exterior material will be attached to the upper part. It is formed in a protruding piece that forms a concave groove that opens to the outdoor side, and the lower part thereof is formed in a fitting groove that opens downward, with the building side being a branch with a tight material and the outdoor side being a draining fin, The fitting groove on the lower part of the exterior material located above is fitted into the protruding piece on the upper part of the exterior material located below, and the tight material of the support piece with the tight material is brought into contact with the side of the building of the projecting piece and polymerized. By forming water return spaces in places and fixing the upper part of the upper exterior material to the above support, the exterior materials are stacked and installed sequentially from the bottom to the top, continuously covering the outer surface of the old exterior wall. A method for renovating a building exterior wall characterized by: