JPH0781379B2 - Exterior wall structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an outer wall structure in which a dry outer wall material for a furring strip on an existing outer wall is attached through a special clip instead of a nail for repair.

[Prior art] To repair the outer wall of an existing building or existing house, completely remove the outer wall, form a new wall, use the existing outer wall as a base, and fix the dry outer wall material directly to this with nails. In this structure, a wooden furring strip, a furring strip made of a C-shaped channel is fixed to an existing outer wall with nails and anchor bolts, and a dry outer wall material is fixed to the existing outer wall with nails and screws.

[Problems to be solved by the invention]

However, this structure has drawbacks that the cost is huge, the repair period is long, and the residence must be stopped. Further, the structure of (3) is not only difficult to apply to concrete or the like and is inferior in workability, but also has disadvantages such as waterproofness, dew condensation, corrosion of a fixture due to impermeability, and lack of heat insulation.
Furthermore, in the structure of (3), the portion of the dry outer wall material that contacts the furring strip is fixed by tapping screws. As a result, the work efficiency is low and the cost is increased, and in particular, when the expansion is large due to heat such as aluminum, it is necessary to form a large fool hole.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention makes the furring strip into a hat shape, a ladle shape, and the dry outer wall material is attached to the furring strip by an elastic clip having a U-shaped cross section or the like. It is easy to install and reduces the cost by shortening the construction period. Moreover, it does not require skill for construction, and even if it is greatly deformed by heat like a metal siding material made of aluminum material. We propose a refurbished outer wall structure that can be installed so that the decorative surface does not change.

〔Example〕

An embodiment of a repaired outer wall structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing a case where a repaired outer wall structure according to the present invention is applied to a cement concrete wall, 1 is an existing outer wall, concrete wall, mortar wall, tile wall, 2 is a furring strip. It is fixed on the existing outer wall 1 vertically with a fixed pitch P, for example, P = 300 to 450 mm, through a fixture 7, for example, anchor bolts, screw screws, and nails. 8 is a clip for a metal plate (F
L, Al, stainless steel, spring steel, etc.), an elastic material such as a synthetic resin material is formed in a U-shaped cross section or the like, and is used in place of the conventional nail or screw screw. 18 is a dry type outer wall material and is made of one kind of metal siding material 19 and ceramic siding material 20, and the metal siding material is a core material made of one kind of surface material 19a, plastic foam, rock wool, siding board, etc. 19b, a sheet-like back surface material 19c provided as necessary, etc., and mainly functions as a new outer wall material, a heat insulating material, a soundproof material, and a waterproof material. To further explain, the furring strip 2 is shown in FIGS. 2 (a) to (i).
It is made of a material such as a metal, a synthetic resin, or a material obtained by molding a metal with a synthetic resin in a shape as shown in, and is formed by any of roll molding, extrusion molding, injection molding and the like.
That is, (a) to (c) have a hat-shaped cross section, and are formed from the fixing portion 3, the mounting surface 4, the mounting hole 5, and the mounting hole 6 provided in the fixing portion 3. More specifically, (a) is a mere hat-shaped furring strip 2 , (b) is a hat-shaped furring strip 2 having reinforcing ribs 4a formed on the mounting surface 4, (c).
The figure shows a hat-shaped furring strip 2 in which a concave rib is formed in the central portion of the mounting surface 4, and (d) and (e) figures show a ladle-shaped furring strip 2 with reduced weight and improved workability, (f). The figure shows a C-channel type furring strip
It is 2 . (G) to (i) are provided with the engaging piece 5a in the mounting hole 5 so that the engagement with the clip 8 can be performed more reliably and easily. The thickness t of the material depends on the required strength. For example, t = _{1 to} 6 mm, P ₁ = 50 to 450 mm, P ₂ =
200~500mm position, H ₁ = 5~50mm position, W ₁ = 10~60mm position, W ₂ =
5~30mm position, W ₃ = 5~30mm position, l ₁ = 5~30mm position, L = 60
It is about 0 to 10000 mm. In addition, as the shape of the mounting hole 5, a typical example is the shape shown in FIGS. 3 (a) to 3 (h),
Figure (a) is circular, (b) is oval, (c) is square,
(D) is a rectangle, (e) is a triangle, (f) is a hexagon, and (g) and (h) are notches 5b. The size is arbitrary depending on the size, shape and strength of the clip 8 . Further, in FIG. 2 (e), 3a is a tongue piece having a function of stability and reinforcement. Further, the clip 8 is, for example, shown in FIGS.
Formed in the shape shown in Figure, and fix the fixed part 18a of the dry outer wall material 18 to the furring strip.
In furring strip and resiliency under through the mounting hole 5 of 2, it is obtained by contact nip. That is, (a) to (e) are U-shaped cross-sections, and include a sandwiching piece 9, an engaging piece 10, a sandwiching portion 11, a reinforcing rib 12, a tongue piece 13, a guide tongue piece 14, which are provided as necessary. The elastic tongue piece 15 is composed of a tongue piece 15. In particular, FIG. (C) shows that the engaging piece 10 is curved to enhance the elasticity. Also, (f) to (j)
The figure shows a main body 16 having a hat-shaped cross section and an insertion piece 17, and after inserting the elastic support piece 16a into the mounting hole 5, it is rotated to form the dry outer wall material 1
The eight fixed portions 18a are sandwiched under elastic force. FIG. 3 (k) shows an insertion type clip formed in a deformed V shape, in which the elastic piece 8a is compressed in the width direction and the dry outer wall member 18 is bonded to the furring strip 2 . (L) ~
(P) The figure is a Y-shaped clip 8 composed of sandwiching portions 11 and 11a. The sandwiching portion 11 is for integrally mounting the dry outer wall material 18 and the furring strip 2 and the sandwiching portion 11a is clipped to the furring strip 2 . It is for mounting 8 . The dimensional relationship is set as follows. _{l 2 ≦ l 3, l 4} ≦ l 5, W 4 <W 2, t 1> t, t 2 is smaller than the opening of the female coupling part of the dry exterior wall member 18, t ₁ is tongue dry exterior wall member 18 Greater than 18b thickness, W ₅ <l ₂ , W ₆ <W ₂ , W ₇ = 5-20mm
_{Position, W 8 <W 1, W} 9 = 5 5~30mm, W 10> W 2, W 11 <l 1, W 12> W
₂ , W ₁₃ <l ₁ , l ₆ = 20-60 mm, l ₇ = 10-40 mm, t ₃ ≧ t, θ
= 5 to 30 degrees. Further, the dry type outer wall material 18 is as shown in FIGS. 5 (a) to 5 (q).
(P) shows the metal siding material 19, and the surface material 19a is formed of one of steel plates such as aluminum, stainless steel, galvalume, galfan, and colored zinc iron plate as shown in the figure, and a core material. 19b is one or more of phenol foam, polyisocyanurate foam, polyurethane foam, polystyrene foam, or one or more of which are dispersed in such as pearlite particles and borax, and the backing material 19c is one of aluminum, kraft paper, etc. It consists of the above. Further, (q) is a ceramic siding board 20, which is of ALC type, concrete type, ceramic type, or the like.

Next, the construction method will be described.

First, it is assumed that a repaired outer wall as shown in FIG. 1 is formed. That is, the existing outer wall 1 is a concrete wall, the furring strip 2 is the one shown in FIG. 2 (a), and the material is a steel plate having a thickness t = 3 mm. The clip 8 has a shape shown in FIG. 4 (d) and is made of stainless steel plate (t = 0.5 mm).
Was used. The dry type outer wall material 18 has the shape shown in FIG. 5 (a). Therefore, fixtures (anchor bolts) 7 are provided in a staggered manner on the existing outer wall 1, and the furring strips 2 are fixed to the existing outer wall 1 via the fixtures. Next, a starter (not shown), a toe edge, etc. are fixed to the lower end (base side) of the furring strip 2 in the horizontal direction with screw screws. After that, the male connecting portion of the first-stage metal siding material 19 is engaged with the starter, and the fixing portion 18a of the metal siding material 19 is firmly attached to the mounting hole 5 by the elasticity of the clip 8. It is a thing. A cross section of the mounting portion is shown in FIG.

〔The invention's effect〕

As described above, according to the repaired outer wall structure according to the present invention,
The dry outer wall material can be easily and efficiently attached to the furry rim without using nails, and can be mounted without play without rattling.
The mounting hole functions as a stopper, and the vertical movement of the clip can be reliably and easily regulated. Since the air tank is formed between the existing outer wall and the new outer wall, the heat insulating property can be improved. Further, by forming the air layer as a ventilation layer, it is possible to prevent dew condensation. There are features such as.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an example of a repaired outer wall structure according to the present invention, and FIGS. 2A to 2I are partially cutaway perspective views showing an example of a furring strip, FIG. 4A to 4H are plan views showing other examples of the shape of the mounting hole 5.
FIG. 5A is a perspective view showing an example of a clip, and FIG.
(Q) is an explanatory view showing an example of the dry type outer wall material, and FIG. 6 is a sectional view showing a mounted state. 1 …… Existing outer wall, 2 …… Furniture, 8 …… Clip, 18 ……
Dry outer wall material.

Claims (1)

[Claims] 1. A refurbished outer wall structure in which furring edges are fixed on an existing outer wall at regular intervals, and a dry outer wall material having a male / female type connecting structure is mounted on the furring edge, and the furring edge has a hat-shaped cross section. Alternatively, it is formed in a ladle shape, and mounting holes are provided at a predetermined pitch on the top surface portion of the furring strip, and the fixing portion of the dry outer wall material has a substantially U-shaped cross section and the elastic clip is mounted. A refurbished outer wall structure that is attached to the hole so as to be in close contact with the furring strip and to be fixedly installed so that vertical movement is restricted.