JP2004169332A - Outer wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outer wall structure, allowing one building worker to perform arrangement construction of a secondary heat insulating material. <P>SOLUTION: Two or more vertical sash bar materials 6 elongated in the vertical direction are respectively erected along the outside of a wall body 1 at designated spaces in the cross direction of the wall body 1. The longitudinal space formed between the adjacent vertical sash bar materials is filled with a secondary heat insulating material 3 to form an outside heat insulation layer. A plurality of vertical furring strips 7 having a designated thickness inward and outward and elongated in the vertical direction are disposed at designated spaces in the cross direction to be stacked on the outside of the vertical sash bar materials 6. The respective vertical furring strips 7 are fixed along the overlapping vertical sash bar materials 6. An outer wall material 5 is fixed substantially parallel to the wall body 1 outside the vertical furring strips 7. The space surrounded with the outer wall material 5, the outer heat insulation layer and the adjacent vertical furring strip 7 and communicated in the vertical direction is taken as a ventilation gap 4. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides double insulation by covering the outside of the wall main body filled with the primary heat insulating material with the secondary heat insulating material, and standing the outer wall material outside the secondary heat insulating material via the ventilation gap. It is an invention relating to an outer wall structure provided.
[0002]
[Prior art]
Conventionally, as shown in FIG. 5, a primary heat insulating material 2 is filled in a wall main body 1 constituting a main body of a building outer wall to form an inner heat insulating layer, and a secondary heat insulating material is formed outside the wall main body 1. By forming an outer heat insulating layer by covering the outer heat insulating layer 3, an outer heat insulating layer is doubled, and an outer wall material 5 serving as an outer surface of a building outer wall is erected outside the outer heat insulating layer via a ventilation gap 4. In the outer wall structure provided, the ventilation gap 4 is arranged such that the outer wall material 5 is disposed so as to overlap with the outer heat insulating layer at a predetermined interval, and the gap between the outer heat insulating layer and the outer wall material 5 is provided. It is composed of a gap. And, in order to arrange the outer wall material 5 by being overlapped at a predetermined interval with respect to the outer heat insulating layer, a spacer member having a predetermined thickness is arranged at a predetermined interval in the width direction outside the outer heat insulating layer, This is performed by fixing the outer wall material 5 to the outside of each of the spacer members.
[0003]
By the way, the ventilation gap 4 needs to be formed in a space communicating vertically in order to eliminate a temperature difference that may occur in the vertical direction of the building. Therefore, the vertical trunk edge 7 is used for the spacer member. Is often done. That is, a vertically long space is formed between the vertically extending vertical body edges 7, and the vertically long space forms the ventilation gap 4. When the vertical body edge 7 is used as the spacer member, in order to fix the vertical body edge 7 to the wall main body 1 side, the horizontal rail 40 formed long in the width direction is formed in the vertical direction of the outer heat insulating layer. Are arranged at a predetermined distance from each other, and the vertical trunk 7 is fixed to the horizontal beam 40. That is, if the horizontal rails 40 are arranged on the outer heat insulating layer, the horizontal rails 40 and the vertical shells 7 intersect with each other when the vertical trunk 7 is disposed, so that the overlap margin is obtained. The horizontal beam 40 and the vertical body edge 7 can be securely fixed at the overlap margin. In this case, in the outer heat insulating layer in this case, the secondary heat insulating material 3 is filled and arranged in a horizontally long space generated between the adjacent horizontal beams 40 (for example, see Non-Patent Document 1).
[0004]
[Non-patent document 1]
Editing Committee for Next-Generation Energy Conservation Standards Editing Committee, "Next-Generation Energy Conservation Standards and Guidelines for Housing," Published by The Energy Conservation Agency, Japan, 1st Edition, November 1, 1999, P248
[0005]
[Problems to be solved by the invention]
As described above, disposing the horizontal rails 40 on the outer heat insulating layer is effective in that a margin for overlapping the vertical trunk edge 7 can be secured, but the secondary heat insulating material 3 is filled and arranged between the horizontal rails. However, there is a problem in the workability for the following reasons.
[0006]
In other words, the secondary heat insulating material 3 must be uniformly disposed outside the wall main body 1 without bias. In this secondary heat insulating material 3, soft rock wool or glass wool is packed in a vinyl bag. In many cases, a wrapping bag or the like is used, and the wrapping bag is so soft that it is difficult to maintain its shape. In order to fill and arrange the material 3, the filling and arranging work must be performed while the secondary heat insulating material 3, which changes its shape so as to bend downward by its own weight, is stretched in the width direction.
[0007]
As described above, the work of filling and arranging the secondary heat insulating material 3 in the space between the crossbars while suppressing the downward bending is imposed on the constructor. This work is performed by one constructor. Since the operation is too complicated, the installation and installation of the secondary heat insulating material 3 actually requires two or more installers. In other words, the placement and operation of the secondary heat insulating material 3 is not a work that can be performed at any time, but the work is often delayed because the number of workers is not uniform, which often causes a delay in the delivery date of the work.
[0008]
The present invention has been made in view of the above points, and it is an object of the present invention to provide an outer wall structure that allows a single installer to construct and install a secondary heat insulating material. .
[0009]
[Means for Solving the Problems]
In order to solve the above problem, an outer wall structure according to claim 1 of the present invention fills a primary heat insulating material 2 in a wall main body 1 constituting a main body of a building outer wall to form an inner heat insulating layer, By forming the outer heat insulating layer by covering the outer side of the main body 1 with the secondary heat insulating material 3, the heat insulating layer is arranged in a double layer. In the outer wall structure in which the outer wall material 5 serving as the outer surface is erected, a plurality of vertically long bar members 6 are arranged along the outer side of the wall body 1 at predetermined intervals in the width direction of the wall body 1. , Each of which is substantially vertically erected, and a secondary heat insulating material 3 is filled and arranged in a vertically long space formed between the adjacent vertical crosspieces 6 to form an outer heat insulating layer, and has a predetermined thickness inward and outward directions, and A plurality of vertical trunk edges 7 formed long in the vertical direction are spaced at predetermined intervals in the width direction so as to overlap the outer side of the vertical crosspiece 6. In addition to the arrangement, the vertical trunks 7 are fixed along the overlapping vertical rails 6, and the outer wall 5 is fixed outside the vertical trunks 7 substantially in parallel with the wall body 1. A vertically communicating space surrounded by the heat insulating layer and the adjacent vertical body edge 7 is formed as a ventilation gap 4.
[0010]
According to this, a plurality of vertical rails 6 which are long in the vertical direction, and are arranged substantially vertically so as to extend along the outside of the wall main body 1 at predetermined intervals in the width direction of the wall main body 1, respectively. Since the secondary heat insulating material 3 is filled and arranged in the vertically long space formed between the materials 6 to form the outer heat insulating layer, the secondary heat insulating material 3 is made of soft rock wool whose shape is difficult to maintain. However, as long as the secondary heat insulating material 3 is fixed only at the upper position of the vertical space, the secondary heat insulating material 3 hangs down by its own weight and naturally expands. In addition, the outer heat-insulating layer can be formed evenly on the outer side of the wall main body 1 without unevenness. In addition, even in the work of disposing and installing the secondary heat insulating material 3, it is possible to omit the installer required to maintain the shape of the soft secondary heat insulating material 3. Accordingly, the above-mentioned construction work can be performed, and therefore, the work of arranging the secondary heat insulating material 3 is a construction work that can be performed arbitrarily regardless of the number of constructors. Without delaying the delivery of construction work.
[0011]
Further, it is also preferable that the width dimension of the vertical trunk edge 7 is formed wide. According to this, the wide vertical waist edge 7 can cover the boundary between the vertical beam 6 and the secondary heat insulating material 3 from the outside, and heat insulation that can occur at the boundary between the vertical beam 6 and the secondary heat insulating material 3. The effect can be prevented from lowering, and the wide vertical waist edge 7 allows a wide contact surface with the secondary heat insulating material 3, even if the secondary heat insulating material 3 is a soft material that is easily deformed in shape. Even if it is configured, it can contribute to the maintenance of the shape of the secondary heat insulating material 3, and this can also prevent the heat insulating effect of the outer wall from lowering.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
As described above, the present invention provides double insulation by covering the outside of the wall main body 1 filled with the primary heat insulating material 2 with the secondary heat insulating material 3, and providing ventilation outside the secondary heat insulating material 3. An external wall structure in which the external wall material 5 is erected through the gap 4 for use, and the installation and installation of the secondary heat insulating material 3 which conventionally required two or more installers can be performed by one installer Thus, the workability can be greatly improved. Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0013]
FIG. 1 shows a perspective view in which a part of a building outer wall is cut away. As described above, the building outer wall has the wall main body 1 constituting the main body of the building outer wall, and the outside of the wall main body 1 is covered with the outer heat insulating layer made of the secondary heat insulating material 3, and outside the outer heat insulating layer, An outer wall material 5 serving as an outer surface of the building outer wall is arranged via a ventilation gap 4. Here, the wall body 1 is filled with the primary heat insulating material 2 to form an inner heat insulating layer, and together with the outer heat insulating layer, a double heat insulating layer is formed on the building outer wall. The ventilation gap 4 is a space that communicates in the up-down direction. The ventilation gap 4 is formed by fixing the outer wall material 5 to the outer surface of the vertical trunk edge 7 erected at a predetermined interval in the width direction outside the outer heat insulating layer, so that the outer heat insulating layer, the outer wall material 5 and the adjacent wall material are adjacent to each other. A vertically long space formed between the vertical waist edge 7 is formed. In addition, 8 in a figure is a moisture-permeable waterproof sheet stuck on the outer surface of the outer heat insulation layer.
[0014]
FIG. 2 is a longitudinal sectional view cut in the longitudinal direction along the line AA in FIG. As can be seen from this figure, a base 10 composed of an L-shaped fitting is disposed on a foundation 9, and a wall panel 11 of the first floor is erected on the base 10. A horizontal rail 12 is disposed on an outer portion of the base 10 on the foundation 9, and a drain piece 13 for smoothly flowing down rainwater dripping from the outer wall material 5 is attached to an outer lower end of the horizontal rail 12. I have. Further, between the lower end of the wall panel 11 and the foundation 9, filling of urethane foam 14 and disposing of a heat insulating material 15 of glass wool are performed by on-site construction so as to cover the inside and the outside of the base 10, and the heat insulating treatment is performed. It has been subjected. The wall panel 11 has a surface plate 17 made of a seasing board adhered to an outer surface of a rectangular frame 16, and an interior plate 18 made of gypsum board adhered to an inner surface of the frame 16. The interior space of the wall panel 11 surrounded by the frame 16, the surface plate 17, and the interior plate 18 is filled with a primary heat insulating material 2 made of rock wool or the like.
[0015]
Further, between the first and second floors of the building, a beam 19 of I-steel material constituting the building frame is erected. The upper end of the wall panel 11 on the first floor is attached to the beam 19 via a mounting bracket (not shown), and the wall panel 11 on the second floor stands on the base 10 attached to the upper surface of the beam 19. Is established. In addition, there is no gap between the first-floor wall panel 11 and the second-floor wall panel 11 so as to cover the beam 19 of the I-steel material. Arrangement is performed and heat insulation treatment is applied. In addition, between the surface plate 17 of the wall panel 11 on the first floor and the surface plate 17 of the wall panel 11 on the second floor, a curtain plate 20 that is continuous with these surface plates 17 is provided.
[0016]
The upper end of the second-floor wall panel 11 is attached to an I-steel roof beam 21. In this example, a two-story building is taken as an example, so the upper end of the wall panel 11 on the second floor is attached to the roof beam 21, but in the case of a building with a higher floor, the upper beam is used. Similarly to 19, it is fixed to a beam erected between floors. In addition, there is no gap between the wall panel 11 and the roof on the second floor, the filling of the urethane foam 14, the installation of the insulating material 15 made of glass wool, and the installation of the ceiling insulating material 22 made of rock wool are performed at the site construction. Processing has been applied. In addition, 23 in the figure is a roof curtain plate disposed outside the roof beam 21 so as to be continuous with the surface plate 17 of the wall panel 11 on the second floor.
[0017]
In this example, the outer wall of the building is constructed by the construction method using the wall panel 11 as described above, and the wall panel 11 including the parts of the inter-story beams 19 and the roof beams 21 is the main body of the building outer wall. The wall body 1 to be constituted is constituted. Of course, in the case of building by a conventional construction method such as a wooden house, the wall main body 1 is configured by a wall material in which the primary heat insulating material 2 having the same function as the wall panel 11 is embedded.
[0018]
FIG. 3 shows a horizontal cross-sectional view of the building outer wall at the outside corner of the building, and FIG. 4 shows a horizontal cross-sectional view of the building outer wall at the inside corner of the building. As can be seen from these figures, vertical crosspieces 6 are respectively provided substantially vertically along the outer surface of the wall main body 1 at positions outside the wall main body 1 at predetermined intervals in the width direction. It is fixed to the wall main body 1 by a fixture 24 such as a screw or a screw. Note that the vertical crosspiece 6 of the present example is located outside the frame 16 of the wall panel 11 and is firmly fixed to the frame 16. The space between the adjacent vertical rails 6 is filled with a secondary heat insulating material 3 forming an outer heat insulating layer. The secondary heat insulating material 3 is a wrapper formed by packing soft rock wool or glass wool in a vinyl bag, and is assumed to be so soft that it is difficult to maintain its shape. Further, a moisture-permeable waterproof sheet 8 that covers the vertical beam 6 and the secondary heat insulating material 3 is attached to the outside of the vertical beam 6 and the secondary heat insulating material 3. The connection between the wall panels 11 arranged side by side in the width direction is performed by fitting together the phase setting portions 16 a formed on the side ends of the frame 16 of the wall panel 11. The plurality of wall panels 11 are arranged between the vertical columns 25 of the building frame. On the outer surface of the vertical columns 25, a heat insulating material 26 is interposed so as to be continuous with the surface plate 17 of the wall panels 11. Cover 27 is attached.
[0019]
A vertical plate-like vertical rim 7 having a width dimension at least larger than the width dimension of the vertical beam member 6 and formed to be longer in the vertical direction is arranged outside the vertical beam member 6. 6 is fixed via a fixture 28 such as a nail or a screw. The vertical trunk edge 7 is also disposed at a predetermined interval in the width direction of the wall main body 1 like the vertical crosspiece 6. In addition, two kinds of vertical body edges 7 having different widths are used for the vertical body edge 7 of this example. For convenience, of these two types of vertical waist edges 7, the wide vertical waist edge 7 is referred to as a wide vertical waist edge 7a, and the narrow vertical waist edge 7 is referred to as a narrow vertical waist edge 7b. The narrow vertical waist edge 7b is used in a portion where the wall panels 11 are directly connected to each other and in a corner portion. The wide vertical trunk edge 7a is used at a portion where the wall panels 11 are connected to each other via a vertical column 25, and at a protruding corner portion.
[0020]
In any of the vertical trunks 7, the width is formed wider than the vertical beam 6, and the vertical trunk 6 is disposed so as to cover the boundary between the vertical beam 6 and the secondary heat insulating material 3 from the outside. The heat insulating effect, which can occur at the boundary between the vertical beam 6 and the secondary heat insulating material 3, can be prevented from being reduced. In addition, the vertical trunk edge 7 formed wider than the vertical rail member 6 can easily take the overlap margin of the vertical trunk edge 7 on the vertical rail member 6, and the arrangement pattern of the vertical rail member 6 can be changed. The arrangement pattern of the vertical body edge 7 that is not restricted can be adopted, and therefore, the degree of freedom of the arrangement pattern of the outer wall material 5 can be improved.
[0021]
An outer wall material 5 constituting the outer surface of the building outer wall is fixed to the outside of the vertical trunk edge 7 via a fixing bracket 29. As the outer wall material 5 of this example, a horizontally long outer wall material 5 that can intersect the vertical waist edge 7 at an arbitrary position to secure an overlap margin and can be easily fixed to the vertical waist edge 7 is employed. As described above, a vertically long space is formed between the outer heat insulating layer, the outer wall material 5, and the adjacent vertical body edge 7, and this vertically long space eliminates a temperature difference that may occur in the vertical direction of the building. Ventilation gap 4 is formed.
[0022]
In the outer wall structure of the present example having the above-described configuration, as described above, the installation work of the secondary heat insulating material 3 which conventionally required two or more installers can be performed by one installer. It is characterized in that it is possible to significantly improve the performance.
[0023]
That is, in this example, the vertical crosspieces 6 are arranged at predetermined intervals in the width direction of the wall main body 1, and a vertically long space communicating vertically between adjacent vertical crosspieces 6 is formed. Since the secondary heat insulating material 3 is filled and arranged, even if the secondary heat insulating material 3 is made of soft rock wool whose shape is difficult to maintain, the secondary heat insulating material 3 is located at the upper position of the vertical space. As long as is fixed, the secondary heat insulating material 3 hangs down by its own weight and naturally expands, so that the secondary heat insulating material 3 can be filled and arranged in the vertical space easily and with a good finish.
[0024]
As described above, the vertically long space communicating with the upper and lower portions is set as the filling position of the secondary heat insulating material 3, so that even if the secondary heat insulating material 3 does not have a self-retaining property, the shape of the secondary heat insulating material 3 can be improved. It is not necessary to simultaneously perform the holding operation and the fixing operation of the secondary heat insulating material 3 to the wall main body 1 and the like, that is, it does not require an operator who is required for the shape maintaining operation of the secondary heat insulating material 3. The filling arrangement of the secondary heat insulating material 3 can be arbitrarily performed as long as an operator for fixing the secondary heat insulating material 3 is secured. Therefore, the work of arranging the secondary heat insulating material 3 is not interrupted due to the number of installers, and it is possible to comply with the delivery date of the installation.
[0025]
In this example, the secondary heat insulating material 3 is made of rock wool having no self-retaining property. However, the secondary heat insulating material 3 made of a material having self-retaining property such as styrene foam is used. Is used, there is no structural problem at all, and it goes without saying that the above effects can be obtained.
[0026]
【The invention's effect】
As described above, in the invention according to claim 1 of the present invention, as described above, a plurality of vertical crosspieces that are long in the longitudinal direction are provided at predetermined intervals in the width direction of the wall main body, and are arranged outside the wall main body. The outer heat insulating layer is formed by filling and arranging the second heat insulating material in the vertically long space formed between the adjacent vertical crosspieces so that the outer heat insulating layer is formed. Even if it is made of a soft rock wool that is difficult to maintain, as long as this secondary heat insulating material is fixed at the upper position of the vertical space, the secondary heat insulating material hangs down by its own weight and naturally expands. The space can be easily filled with the secondary heat insulating material in a good finish condition. In other words, in the work of arranging the secondary heat insulating material, the work required to maintain the shape of the soft secondary heat insulating material is required. Can be performed by only one installer without the Distribution 設施 tool industry thermal material becomes a construction work to obtain optionally performed regardless builders number, eliminating the stagnation occurs in the construction work, it can be to obtain achieving compliance with construction deadlines.
[0027]
According to the second aspect of the invention, in addition to the effect of the first aspect, since the width of the vertical waist is formed to be wide, the contact surface to the secondary heat insulating material may be formed depending on the wide vertical waist. It can be widely used, and even if the secondary heat insulating material is made of a soft material that is easily deformed, it can contribute to maintaining the shape of the secondary heat insulating material constituting the outer heat insulating layer. Since the border can also cover the boundary between the vertical crosspiece and the secondary heat insulating material from the outside, it is possible to prevent the heat insulating performance of the outer wall from deteriorating.
[Brief description of the drawings]
FIG. 1 is a perspective view in which a part of a building outer wall is cut away, showing an example of an embodiment of the present invention.
FIG. 2 is a vertical sectional view taken along line AA of FIG.
FIG. 3 is a horizontal cross-sectional view of a building outer wall at a protruding corner of the building.
FIG. 4 is a horizontal cross-sectional view of a building outer wall at a corner portion of the building.
FIG. 5 is a cross-sectional perspective view showing an example of the prior art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wall main body 2 Primary heat insulating material 3 Secondary heat insulating material 4 Ventilation gap 5 Outer wall material 6 Vertical crosspiece 7 Vertical trunk edge

Claims (2)

A heat insulating material is formed by filling a primary heat insulating material into a wall main body constituting a main body of a building outer wall and forming an outer heat insulating layer by coating a secondary heat insulating material outside the wall main body. In an outer wall structure in which layers are arranged in a double layer and an outer wall material serving as an outer surface of the building outer wall is erected outside of the outer heat insulating layer via a ventilation gap, a vertically long longitudinal beam is provided. A plurality of the secondary heat insulators are erected substantially vertically at predetermined intervals in the width direction of the wall main body so as to extend along the outside of the wall main body, and are formed in a vertically long space formed between adjacent vertical crosspieces. Filled and arranged to form an outer heat insulating layer, a plurality of vertical trunk edges having a predetermined thickness in the inward and outward directions and formed long in the vertical direction, spaced at predetermined intervals in the width direction so as to overlap the outer side of the vertical crosspiece. , And fix each vertical waist along the overlapping vertical bar. An outer wall structure wall body substantially fixed parallel to the outer wall member, an outer wall material, a cavity communicating with the upper and lower enclosed by vertical furring strips to the outer heat insulating layer and the adjacent characterized by comprising a gap for ventilation. The outer wall structure according to claim 1, wherein the width of the vertical trunk edge is formed wide.

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