Wall Exterior Structure for Outer Wall Heat-Insulated Building and Wall Exterior Base, Lateral Furring Frame for Wall Exterior Material Installation and Method for Covering Wall Using Lateral Furring Frame, and Exterior Base Material and Outer Wall Using Exterior Base Material

Abstract

In a wall exterior structure, an exterior base is formed of a number of vertical furring strips and a number of lateral furring strips, which are arranged in lattice to each other, each furring strip being a C-shaped channel material. A latch tongue, formed to an upright piece of each vertical furring strip, is latched to an upper through hole in each lateral furring strip. The upright piece is disposed at the position where a vertical furring strip intersects a lateral furring strip. The exterior base is provided by fixing the vertical furring strips on the surface of an outer heat insulating layer. An exterior material is hung to the exterior base so that an outer wall is made through a simple work. A ventilation space of about 5 mm, depending on the thickness of the vertical furring strip, is defined outside the outer heat insulating layer. The ventilation space is generally about 2 cm in thick. Hence, the reduced ventilation space can improve the heat insulation property of a building.

Description

TECHNICAL FIELD [0001] The present invention relates to a wall exterior structure for an outer wall heat-insulated building and to a wall exterior base. Furthermore, the present invention relates to a lateral furring frame for wall exterior material installation and to a method for covering walls using the lateral furring frame. Moreover, the present invention relates to an exterior base material and to an outer wall using the exterior base material. [0002] In more detail, the present invention is made to mount a surface exterior portion to an outer wall via an outer heat insulated layer in a building such as a single-family house. For that purpose, the present invention relates to improving (1) a wall exterior structure and a base for the wall exterior, (2) a lateral furring frame for wall exterior material installation (metallic lateral furring frame) and a method for covering a wall surface using the lateral furring frame, and (3) an exterior base material and outer wall using th...

AI Technical Summary

Benefits of technology

[0020] The present invention is made to improve the above-mentioned previous problems. A first object of the present invention is to provide a wall exterior structure for outer wall heat insulated buildings, wherein the external finish can be performed certainly and easily for the whole surface of outer heat insulated outer wall at a construction site. Moreover, the present invention can stably latch the outer exterior material at all times, can effectively reserve the proper strength of an outer exterior base, can increase reasonably the thickness of an outer heat insulated layer to be produced, and can improve the heat insulation performance.

[0021] A second object of the present invention is to provide a wall exterior base for the outer wall heat insulated building, wherein respective outer exterior materials can be latched stably at all times in a relatively simplified structure.

[0022] A third object of the present invention is to provide a combination of furring strips of various types for wall exterior installation in an outer wall heat insulated building, wherein the cutting and removing works and splicing and compensation are not required at a construction site so that good workability can be always established highly and easily. In such a combination, when lateral furring strips having a fixed length, i.e. standard lateral furring strips, to be mounted to an outer wall surface are combined, a redundant portion in length and a short portion in length, which may occur because of the existence of outer corners or windows on the outer wall surface, can be compensated effectively through a simple operation.

Problems solved by technology

However, the conventional structure requires attachment of spacers onto exterior surfaces of an outer wall acting as a structural frame and formation of foamed outer heat insulation layers at the construction site.

Therefore, undesired problem is that the heat insulation external work on the construction spot is complicated and much hours of work are consumed.

As a result, it is unavoidable that a failure such as deflection of mounting shafts of the fittings may be induced.

However, the total dimension between the surface of the exterior portion and each furring step is generally limited to about 7 cm.

More increasing the total dimension leads to excessively lengthening the effective shaft length of the fixing tool.

The increased dimension leads to easily deflecting the shaft and decreasing the overall strength, as described preciously.

Hence, the thickness of each furring strip cannot be reduced.

In such a case, when a foamed heat insulated panel is used as one structural aspect of the outer heat insulation layer, the thickness of the outer heat insulation layer is limited to at most about 3 cm to 5 cm because the total dimension is limited due to the effective length of the shaft of a fixing tool.

As a result, it is impossible to improve the heat insulation performance of a building by disposing outer heat insulation layers having a more thickness than the critical thickness.

However, since the ends such as outer corners or windows are provided at many places in an actual building, the horizontal widths are not fixed.

This makes it very complicated to perform working at the construction site and raises undesired problems.

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