JP2007077733A - Repair method for external facing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external facing repair method which covers existing external facing with an on-site foaming resin material and fixes new external facing thereon with the on-site foaming resin material. <P>SOLUTION: In the method of repairing the existing external facing α, the existing external facing α is covered with the on-site foaming resin material C, and the new external facing A is fixed thereon with the on-site foaming resin material C. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a structure for repairing an existing exterior made of a cement-based exterior material that releases dust by degrading at a low cost with a shortened construction period.

    In order to renovate this type of exterior, conventionally, all existing exterior materials were removed, waterproof sheets such as asphalt roofing were installed on the foundation as needed, and various roof materials were constructed on the sheets. It was. In addition, a method of constructing a new exterior material via a heat insulating material has been developed. See Patent Documents 1 and 2.

JP 2001-288856 A JP 2001-329660 A

  However, it took a lot of cost and time to remove the existing exterior material, and a large amount of remaining material was produced. In recent years, the labor shortage has become a major problem, and it is no longer possible to find a repair method without considering the labor shortage. Furthermore, due to the effects of acid rain in recent years, cement and slate roofing materials have deteriorated remarkably, and cracking of the roofing materials and weathering of the roofing materials have caused scattering of constituent materials (for example, cement, asbestos, etc.). I'm starting. For this reason, in the repairing method for removing the deteriorated roofing material, not only workers but also neighboring residents are concerned about the scattering of dust such as cement and asbestos and the treatment of the removed material. Patent Document 1 is a construction method in which a heat insulating material is fixed with urethane resin applied on an existing roof and a roof plate material is formed thereon, and Patent Document 2 is corrugated with urethane resin on a corrugated slate existing roof. Although it is the structure which fixes the heat insulating material substantially the same as the slate existing roof, and forms a roof board | plate material on it, there existed a problem which became expensive in terms of construction property and construction period.

  In order to solve such drawbacks, the present invention is a method for repairing an existing exterior, in which the existing exterior is covered with an in-situ foamed resin material, and the new exterior is fixed thereon with the in-situ foamed resin material. It provides the repair method.

  According to the exterior refurbishment method according to the present invention, (1) it can be formed on an existing exterior without removing it, so the construction is simple, no remaining material is produced, and the construction period is greatly shortened. It will be a repair method that can be done. (2) No residual material is produced, and no harmful substances such as dust generated when removing the residual material are released. (3) By covering almost the entire surface of the existing roof with in-situ foamed resin material, scattering of dust from the deteriorated roofing material is prevented and the deterioration of the roofing material is suppressed, and the heat insulation and airtightness of the entire structure are prevented. Improves waterproofing, soundproofing, fireproofing, fireproofing, etc. (4) In order to cover the existing exterior with the in-situ foamed resin material, it is not necessary to add a waterproof function and an airtight function to the new exterior. (5) Even if the shape of the new exterior is simple, it functions as a new exterior. (6) A joint member for connecting the new exteriors is not required. (7) There is no need to fix a new exterior with a nail, and workability is improved.

  Hereinafter, an embodiment of an exterior repair method according to the present invention will be described in detail with reference to the drawings. 1 to 6 are explanatory diagrams showing the construction state of the above repair method, FIGS. 7A to 7G are perspective views showing a new exterior A, FIGS. 8A to 8D, and FIG. ) To (d) are explanatory views showing the construction sequence, and an existing exterior α (showing a roof in the figure), a new exterior A, a roof surface B, an in-situ foamed resin material C, a synthetic resin foam layer D and It is comprised from.

That is, the existing exterior α is the base plate α1. , Asphalt roofing α2 Existing exterior material α3 It is a roof that has been made old enough to require renovation. More specifically, the existing exterior material α3 is mainly made of cement, and deteriorates with time due to rain (acid rain), wind, sunlight, ultraviolet rays, etc., and the surface becomes powdery and dust is scattered. Such exterior materials (so-called new roof tiles), specifically, asbestos slate (colored asbestos slate, corrugated asbestos slate), cement board, and the like.

  New exterior A is metal roofing material, metal tile roofing material, tile roofing material, asbestos-colored slate roofing material, asbestos corrugated slate roofing material, cement roofing material, etc. is not. In addition, as an example of the new exterior A, it is a new exterior A as illustrated in FIGS.

  The roof surface B is a repair work construction surface of the existing exterior α on which the existing exterior material α3 is constructed.

  As shown in FIG. 2, the in-situ foamed resin material C is sprayed on the existing exterior α at the construction site to form a thickness of about 5 to 30 mm, and mainly functions as a heat insulating material, an adhesive material, a soundproofing material, etc. In addition, the construction is such that a heat insulation defect portion and a gap cannot be formed. Specific examples include polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, and the like.

Furthermore, flame retardants such as antimony trioxide, halogen compounds, phosphate esters, aluminum hydroxide, molybdenum compounds and zinc compounds can be mixed in the above foam as a matrix to improve fire resistance and fire resistance. .

The synthetic resin foam layer D is a synthetic resin foam that is foamed and solidified by discharging the in-situ foamed resin material C, and the in-situ foamed resin material C is used to form the entire surface of the existing exterior α. The synthetic resin foam layer D is formed by discharging onto the exterior α.

The synthetic resin foam layer D functions as an adhesive between the existing exterior material α3 and the new exterior A, and improves the heat insulation, airtightness, waterproofness, fireproofing, fireproofing, soundproofing, etc. of the entire roof. Existing exterior material α3 of existing exterior α As a result, the new exterior A can be applied smoothly and without backlash. Of course, since the existing exterior α and the new exterior A are bonded and fixed by the in-situ foamed resin material C, a fixing tool for fixing the new exterior A is not necessary, and the workability is improved. .

  In order to cover the existing exterior α with the in-situ foamed resin material C, it is not necessary to add a waterproof function and an airtight function to the new exterior A, and even if the shape of the new exterior A is simple, the new exterior A It can be used.

Next, the exterior repair method according to the present invention will be briefly described through construction examples. First, the in-situ foamed resin material C is discharged onto the existing exterior α as shown in FIG. 1 as shown in FIG. 2, and then the new exterior A is applied to the in-situ foamed resin as shown in FIGS. The material C is bonded and fixed within a certain time, and the space of the roof surface B is filled with the synthetic resin foam layer D for construction.

  This process is performed at any time in the order shown in FIGS. 8A to 8D and FIGS. 9A to 9D to form a new exterior A composed of a new roof surface.

  What has been described above is only one example of a method for repairing an exterior according to the present invention, and this method can also be formed on an existing wall material. In addition, the new exterior A can be fixed to the housing with a fixture such as a nail, and the attachment strength of the new exterior A can be improved by eliminating the influence of the deteriorated existing exterior material α3.

It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction state of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the representative example of the novel exterior used for the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction order of the repair method of the exterior which concerns on this invention. It is explanatory drawing which shows the construction order of the repair method of the exterior which concerns on this invention.

Explanation of symbols

A New exterior B Roof surface C In-situ foamed resin material D Synthetic resin foam layer α Existing exterior α1 Field board α2 Asphalt roofing α3 Existing exterior materials

Claims (1)

A method for repairing an existing exterior, comprising covering the existing exterior with an in-situ foamed resin material and fixing the new exterior on the in-situ foamed resin material.

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