JPH0768752B2 - Exterior wall repair method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention makes it possible to easily, beautifully, and inexpensively use an existing wall having a mortar structure such as a large wall or a true wall by using a dry type outer wall material.
Furthermore, the present invention relates to an outer wall repairing method for forming an air cycle path by connecting the space on the rear surface of the new outer wall with the inner surface of the existing mortar wall, preventing dew condensation, soundproofing, and forming a comfortable living space.

[Conventional technology]

Conventionally, in order to repair an outer wall exposed on the surface of a house or the like, in particular, a mortar outer wall, a method of removing all existing walls to be repaired or washing and forming a mortar wall again has been adopted. Also, by fixing the furring strip directly on the existing wall,
There is also a method of constructing a new outer wall material.

[Problems to be solved by the invention]

In the conventional repairing method, not only the former has to be discontinued, but also the cost is high, and the heat insulation and workability are disadvantageous. In addition, although the latter renovation method can create a space for ventilation between the existing wall and the new outer wall material, it cannot prevent the dew condensation phenomenon due to the moisture inside the existing wall, and the skeleton and foundation inside the existing outer wall are corroded. The durability was greatly reduced due to the occurrence of mites and mold.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention forms a large number of through holes penetrating the existing mortar wall, then abuts the furrow on the existing mortar wall having the through holes, and horizontally. ,
Or fix it to the main pillar and stud of the existing mortar wall with nails in the vertical direction, and then horizontally stretch the new outer wall material on the furring strip, or
By forming a new outer wall by lining up vertically, it has dew condensation resistance by air cycle, durability, corrosion resistance, mold resistance, soundproofing, and without interrupting living,
In addition, it proposes an outer wall repairing method that can easily construct a new outer wall with a beautiful appearance in a short period of time.

〔Example〕

Hereinafter, the outer wall repairing method according to the present invention will be described in detail with reference to the drawings. 1 (a) and 1 (b) are perspective views showing a typical example of a repaired outer wall structure constructed by the construction method according to the invention. That is, in FIGS. 1 (a) and 1 (b), 1 is an existing wall (hereinafter simply referred to as an existing wall) such as an existing mortar wall, a concrete wall, or a tile wall, which is a main pillar 2, a stud 3, a wood laver. 4, a mortar base 5 composed of a sheet 5a and laths 5b, and a mortar wall 6.
The structure of the existing wall 1 is, for example, one of a large wall, a true wall, and a base mortar wall as disclosed in Japanese Patent Publication No. 53-8129. 7 is the base, 8 is an anchor,
Reference numeral 9 is a foundation, 10 is a furring strip, and 15 is a new outer wall material. Furry edge 10
Is to be fixed on the existing wall 1 via nails 12.
As shown in FIG. (B), when the new outer wall material 15 is vertically stretched, it is attached so as to perform an air cycle by leaving a space Δl between the furring strips 1.
In the case of a shape having a groove on the back surface and a space on the back surface, it is not necessary to provide the space 1 between the furring strips 10, although not shown. Reference numeral 11 denotes a through hole, and as shown in FIGS. 1 (a), (b) and FIG. 2 (a sectional view taken along the line ii in FIG. 1 (a)), the main pillar 2 and the stud 3 of the existing wall 1 do not exist. A large number of holes are drilled in the portion, and the size, the cross-sectional shape, the drilling direction of the through holes 11, etc. are arbitrarily drilled using a drill or the like.
The location of the through hole 11 is also arbitrary, but the existing wall 1
On the other hand, as shown in FIGS. 1 (a) and 1 (b), they may be formed at equal intervals, or although not shown, the vicinity of the base portion or the eaves top portion may be formed densely or unevenly, or the base Department,
Both the eaves top and bottom can be densely and densely distributed, or randomly formed. More specifically, this through hole 11
Is for communicating between the space α between the main pillars 2 and the studs 3, the underfloor, and the back of the hut, and the formation of an air cycle passage between the underfloor and the back of the hut, and dew condensation by eliminating an increase in humidity inside the room It is also provided with a soundproof effect that prevents the generation of sound and, depending on its shape, attenuates the sound inside and outside the room. The specific shape is formed as shown in FIGS. 3 (a) to (e) and FIGS. 4 (a) to (k), and FIGS. 3 (a) to (e).
Is a longitudinal sectional view of the through hole 11, and FIGS. 4 (a) to (k) are through holes.
FIG. 11 is a transverse sectional view of 11. That is, FIGS. 3 (a) to (e)
Is a through hole 11 formed in a circular shape, an oval shape, a quadrangular shape, a triangular shape, a trapezoidal shape, or the like. Further, FIG. 4 (a) shows a horizontal shape,
(B) and (c) are tapered, (d) and (e) are inclined, (f) is a step formed in the middle, (g) to
(J) Figure shows one formed with a taper, (k)
The figure shows a through hole 11 with a horizontal inside and a tapered outside.
Is. Further, the shapes of the inlet and the outlet of the through hole 11 can be formed differently. Reference numeral 13 is a base drainer, and 14 is a starter (shown in FIG. 1 (a)), especially the base drainer.
Reference numeral 13 denotes an elongated body having a cross section as shown in FIGS. 5 (a) to 5 (f), which is mounted near the base 7. In particular, FIGS. 5 (e) and 5 (f) show the outside air and the new outer wall material 15 on the nail driving piece 13a or the furring strip lower end covering surface 13b in which the tip is bent outward and the tip is bent outward. The base drainer 13 has a hole 13c that connects the space between the existing wall 1 and the space (space formed between the furring strips 10). In addition, as shown in FIG. 5 (e), the tip is bent inward along the nailing piece 13a and the hole 13c is bent outward at a position not closed by the new outer wall member 15 as shown in FIG. A locking piece 13d that functions as a starter 14 described later is formed. In addition, when the foundation drainage 13 is constructed by forming a gap (between drainage surfaces) with the existing foundation drainage 13e of the existing wall 1 to some extent, a void communicating with the outside air is formed. Numeral 14 is a starter, which is particularly required when horizontally installing a new hook member type or drop type new outer wall material 15 as shown in FIG. It is necessary. The starter 14 is either a metal fitting structure or a long type. Reference numeral 15 denotes a new outer wall material, which has a heat insulating property, has a male / female connection structure or a phase determination structure, and is long. As a concrete example,
Mainly as shown in FIGS. 6 (a) to (q), FIGS. 7 (a) to (p), and FIGS. 8 (a) to (e), and FIG.
FIG. 7 shows a core material and a heat insulating material B between a metal surface material A and a back surface material C.
Fig. 8 is a metal-based siding board that is filled with crushed stones. Fig. 8 shows ceramic stone, feldspar, kaolinite, halosite, metahalosite, kibushi clay, frog eye clay, Shigaraki clay, chamotte, etc. crushed and kneaded with water. , A ceramic siding board formed by subsequent firing. Further, as shown in FIG. 9 (a), a toe 16 is provided on the eaves top portion, and a gap is formed between the eaves top plate 17 and the toe edge 16 so that the eaves top portion also communicates with the outside air. At the same time, it communicates with the attic β to form an air cycle path, and connects the underfloor, the space between the existing wall 1 and the new exterior wall material 15, the space α inside the existing wall 1 , the attic β, and the outside of the house. It is a thing. Further, FIG. 9 (b)
Is a cover member 18 having a male-female fitting structure, in which an exhaust hole 18a is formed. Reference numeral 19 is a guideline for displaying the positions of the main pillars 2 and the studs 3 on the existing wall 1 , and any of marking, marking, tape sticking, etc. may be used.

〔Example〕

Next, the outer wall repairing method according to the present invention will be described. First, in order to construct an outer wall repair wall as shown in FIG. 1 (a), the guideline 19 is provided on the surface of the mortar wall 6 of the existing wall 1 so as to match the main pillar 2 and the stud 3. Then guideline 19
Through holes 11 are formed at equal intervals as shown in FIG. 1 (a) at the positions where the main pillars 2 and the studs 3 are not present. After formation of the through holes 11, the furring strip 10 is fixed at a pitch of 300 mm, 450 mm or the like. So when the construction of the furring strip 10 is completed,
The base drainer 13 is horizontally fixed near the base 7, that is, at the bottom of the so-called furring strip 10. After the construction of the base drainer 13 is completed, the starter 14 is installed on the base drainer 13, and then the new outer wall material 15 shown in FIG. 6 (f) is installed from the base toward the girder via the nails 12. . A toe 16 is fixed on the furring strip 10 in advance on the eaves top.

[Other Examples]

What has been described above is only one example of the outer wall repairing method according to the present invention. Before the furring strip 10 is constructed, the base drainer 13 is constructed on the mortar wall 6, and then the furring strip 10 is constructed. You can also do it. Further, in the case where the new outer wall material 15 is vertically stretched and the groove is formed along the longitudinal direction on the back surface, for example, in the case of the new outer wall material 15 as shown in FIGS. 7 (c) and (d), The furring strip 10 is eliminated and the new outer wall material 15 is directly attached to the existing wall 1.
Can also be installed. Of course, it is possible to implement the outer wall repairing method by combining each of FIGS. 3 to 9.

[Advantages of the Invention] As described above, according to the outer wall repairing method of the present invention,
It can be constructed in a short time without requiring skill and without interruption of living. In addition, since the through hole was formed in the existing wall, the space under the floor-the space between the existing wall and the new outer wall material-
By connecting all of the existing space inside the wall-back of the hut-outside of the house to the air cycle path, eliminating indoor humidity,
It is possible to prevent the formation of dew condensation and create a comfortable living space in which no mold, mites, etc. are generated. In addition, the shape of the through hole has a feature of providing a soundproof effect. Moreover, since the new outer wall material is a dry type outer wall material, the construction is easy and
There is a feature that the construction period is also short. In addition, there is a feature that the durability of the building and the building after renovation will be greatly improved.

[Brief description of drawings]

1 (a) and 1 (b) are partially cutaway perspective views showing an example of a new outer wall constructed by the outer wall repairing method according to the present invention,
FIG. 2 is a sectional view taken along the line EE in FIG. 1 (a), FIGS. 3 (a) to (e), and FIGS. 4 (a) to (k) are examples of perforation shapes of through holes. 5A to 5F are longitudinal sectional views and transverse sectional views, and FIG. 5A to FIG. 5F are sectional views and perspective views showing an example of the foundation drainer used in the outer wall repairing method according to the present invention, and FIG. 6A.
~ (Q), Fig.7 (a) ~ (p), Fig.8 (a) ~
(E) is explanatory drawing which shows an example of the new outer wall material used for the repairing method, and FIG. 9 (a), (b) is a partially cutaway sectional view which shows an example of an eaves part. 1 …… Existing wall, 2 …… Main pillar, 3 …… Garment, 5 …… Mortar base, 10 …… Furnace, 11 …… Through hole, 15 …… New outer wall material, α …… Space, β …… Attic

Claims (1)

[Claims] 1. When repairing an existing wall such as an existing mortar wall such as a large wall or a true wall, a concrete wall, or a tile wall, a large number of through holes penetrating the existing wall are formed on the surface of the existing wall. And then abutting the furring on the existing wall having the through hole, and fixing it horizontally or vertically to the main pillar or stud of the existing wall via a nail, and then the furring An outer wall repairing method characterized by forming a new outer wall by horizontally or vertically laying a new outer wall material on top.