JP2005097996A - Structure and method for modification of sheet metal roofing roof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for modification of a sheet metal roofing roof less producing waste, enabling living even during construction period, and enabling the easy modification of the roof. <P>SOLUTION: In this structure for modification of the sheet metal roofing roof applied onto the sheet metal roofing roof, a bed treating material 2 is filled onto a bed 1 having recesses and projections formed by an existing roof material to form a flat surface. An elastomer waterproof sheet 3 is laid down on the flat surface and adhered thereto to hold waterproofness. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure for repairing a metal plate roof constructed on a roof of a building with a waterproof sheet, and can be laid without removing existing roofing material, and relates to a repair structure excellent in water tightness. .

  There is a metal sheet roof construction method using a metal plate as one of the methods of soaking a roof having an inclination, and there are methods such as flat fence, vertical hail fence, tile rod fence, corrugated sheet fence, horizontal fence, metal tile tile, etc. .

  Each of these methods is technically established as a roofing method, and can be constructed at low cost, and many of its workability and waterproofness are improved compared to tile roofs. This is a method often used in simple buildings that do not require any external appearance.

  However, these metal sheet roofing methods are used as the main members of the roof material, such as hot dip galvanized steel sheet, painted hot dip galvanized steel sheet, hot dip galvanized steel sheet, painted stainless steel sheet, aluminum alloy plate, painted aluminum alloy plate, etc. Is used. Although it can withstand long-term use to some extent by anticorrosion treatment such as painting and plating, the period is about 8 to 10 and several years, and after that period, it becomes impossible to keep water tightness. In addition, the appearance will be in a state where corrosion has progressed and it cannot be seen.

  It is also necessary to repair the roof in a state where corrosion has progressed partially or completely, or in some cases, to replace the entire roof. When replacing the entire roof, it takes time and cost, and there is also a problem that it is impossible to live during the construction period, so a new waterproof layer is formed without changing the roof without changing the roof. The method is preferably taken. However, in the case of the roof as described above, the roof has irregularities, and it is difficult to form a new waterproof layer as it is.

  For example, as shown in Patent Document 1, there is a method of arranging a waterproof panel on an existing roof. This method is a method in which a panel is placed on a convex portion having irregularities and fixed.

  Further, Patent Document 2 and Patent Document 3 are intended for repair of a new roof tile such as a slate, not a roof made of a thin metal plate, but a new waterproofing is also performed on the existing roof without removing it. This is a method for forming a layer, and a new waterproof layer has a backing material. Patent Document 3 discloses a method for disposing a synthetic resin foam layer on an existing roof.

JP 2001-123587 A JP-A-7-292866 Japanese Patent Laid-Open No. 5-305451

  Since the roof can be formed by arranging a new waterproof layer without removing the existing roofing material by adopting the construction method disclosed in Patent Document 1, Patent Document 2, and Patent Document 3 described above, It has the advantage that it generates less waste and can be resident during the construction period, but the new waterproof layer also has many panels and roofing materials made of metal, etc., and is attached to the existing roof. Although it is excellent, it takes time and effort to fix the roofing materials one by one, and the cost becomes excessive.

  Using a sheet made of an elastomeric material such as rubber as the waterproof layer greatly reduces the effort required to form the waterproof layer and is advantageous in terms of cost, but it is difficult to evenly adhere the sheet to an uneven ground. Met.

  Therefore, in the present invention, in the roof refurbishment structure, a new waterproof layer is formed without removing the existing roofing material, and the generation of waste is small and the residence during the construction period is possible. An object of the present invention is to provide a repair structure of a metal sheet roof that can be repaired.

  In order to achieve the above object, according to claim 1 of the present invention, in a modified structure of a metal plate roof that is provided on the metal plate roof, a base treatment material is laminated on a base having an uneven surface made of an existing roof material. An elastomeric waterproof sheet is laid and bonded to the flattened surface.

  In claim 2, a repair structure of a metal plate roof is used, in which the base treatment material is polymer cement.

  According to a third aspect of the present invention, a repair structure of the metal plate roof is formed by interposing a cement-based hydrated solidified waterproof material between the base treatment material and the base made of the metal plate roof.

  In Claim 4, in the repair method of the metal sheet roof which is applied on the metal sheet roof, it is flattened by laminating the base treatment material on the ground having unevenness formed by the existing roof material, and the elastomer waterproof sheet is laid It is characterized by being bonded.

  In claim 5, a repair method for a metal plate roof is used, in which the base material is polymer cement.

  According to the sixth aspect of the present invention, the repair method for the metal plate roof is made by interposing a cement-based hydrated solidified waterproof material between the base treatment material and the base made of the metal plate roof.

  By making the roof having unevenness flat with the ground treatment material as in claim 1 or claim 4, the waterproof sheet made of elastomer can be laid and adhered without any gaps, so a waterproof layer with excellent water tightness can be relatively easy Can be formed at low cost.

  By using a polymer cement as the base treatment material as in claim 2 or claim 5, it is inexpensive and can be maintained at a long waterproof performance after refurbishment because it is difficult to peel off from a metal plate even if a crack occurs. Therefore, it is a preferable form.

  Adhesion of the base treatment material from the sheet metal roof to the base by interposing a cement-based hydrated solidification waterproofing material between the base treatment material and the base made of a metal plate as in claim 3 or claim 6 Property can be improved. In addition, this layer can be double waterproofed together with the waterproofing sheet made of elastomer which is waterproof, and the watertightness can be further improved.

  FIG. 1 is a cross-sectional view showing an example of a repair structure of a sheet metal roof according to the present invention. The repair structure of the present invention is obtained by laminating a base treatment material 2 and a waterproof sheet 3 on a base 1 made of an existing sheet metal roof. If necessary, a primer 4 is applied to the surface of the base 1 and a cement-based hydrated and solidified waterproofing agent 5 is applied and laminated.

  The waterproof sheet 3 is bonded and fixed to the base treatment material 2 using an adhesive 6. Furthermore, a heat insulating paint 7 or the like may be applied on the waterproof sheet 3 or a decorative layer (not shown) may be disposed.

  In this repair method, the primer 4 is first applied to the base 1 to remove the dirt on the base, and then the cement-based hydrated coagulant waterproofing agent 5 is applied to the base treatment material 2 so that the unevenness of the base 1 is applied. Fill and level the amount to fill and flatten. After the base treatment material 2 is cured, an adhesive is then applied to the surface flattened by the base treatment material 2 to bond the waterproof sheet 3. When applying a heat insulating paint or the like, it is applied to the surface of the waterproof sheet 3 thereafter.

  In the present invention, the thin metal sheet roof is a metal such as a hot dip galvanized steel sheet, a painted hot dip galvanized steel sheet, a hot dip galvanized steel sheet, a painted stainless steel sheet, an aluminum alloy plate, and a painted aluminum alloy plate as a main component of the roofing material. It is a sheet metal roofing method such as flat fences, standing haze fences, tile rod fences, corrugated sheet fences, horizontal fences, and metal tile fences.

  Examples of the base treatment material 2 that can be used include a polymer cement paste, a polymer cement mortar, and a cement-based hydrated solidifying waterproofing agent. Among them, it is relatively inexpensive to use a polymer cement mortar. In addition, even when a crack or the like occurs, it is preferable because the waterproof performance can be maintained for a long time because it is difficult to peel off from the underlying metal plate.

  The polymer cement paste is obtained by blending a cement paste and a resin emulsion, and the blending ratio of the cement paste and the resin emulsion is preferably in the range of 100/20 to 20/100 in terms of water tightness and adhesiveness. Examples of the cement paste component include hydration curable powders such as general Portland cement, alumina cement, fly ash cement, silica cement, magnesia cement, and rapid hardening cement.

  Moreover, what is generally called cement mortar mixed with aggregates such as sand can be used, and the curing rate may be adjusted appropriately according to the state of the site.

  Furthermore, although resin emulsion is mix | blended with polymer cement, the waterproofing effect of polymer cement can be heightened by mix | blending resin emulsion. Examples of the resin emulsion include ethylene vinyl acetate resin (EVA), modified EVA, acrylic resin, epoxy resin, urethane resin, acrylic styrene, SBR, CR, and the like. Of these, ethylene vinyl acetate resin is preferred because of its excellent adhesiveness.

  As the waterproof sheet 3, rubber such as ethylene propylene diene monomer (EPDM) or ethylene propylene rubber (EPR), or a resin waterproof sheet such as polyvinyl chloride (PVC) or polyethylene (PE) can be used.

  As the primer 4, a resin emulsion mixed with the polymer cement can be appropriately diluted with water.

  As the cement-based hydrated and solidified waterproofing agent 5, various materials such as polymer cement paste, aggregated polymer cement, and polymer cement mortar can be used.

  By flattening the surface of the sheet metal roof with unevenness as described above with a base treatment material, an elastomeric waterproof sheet made of rubber or resin can be laid with a higher degree of adhesion, and it is easily watertight. High repair can be done.

  In the present invention, when repairing corrosion in a roof covered with a panel or a tile-like member obtained by bending a metal plate, the repair is easily performed by using an elastomer waterproof sheet without generating waste. Can be used for applications.

It is sectional drawing which shows an example of the repair structure of the sheet metal roof of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Groundwork 2 Ground-treatment material 3 Waterproof sheet 4 Primer 5 Cement system hydration coagulation waterproofing agent 6 Adhesive 7 Thermal insulation paint

Claims (6)

  In the renovation structure of a metal plate roof, which is applied on the metal plate roof, an elastomeric waterproof sheet is laid and bonded to a flattened surface by laminating a base treatment material on an uneven surface made of an existing roof material. Renovated structure of metal plate roofs characterized by that.   2. The repair structure for a metal sheet roof according to claim 1, wherein the base material is polymer cement.   The repair structure of a metal plate roof according to claim 1 or 2, wherein a cement-based hydrated solidifying waterproofing agent is interposed between the base treatment material and the base made of the metal plate roof.   In the renovation method for metal plate roofs applied on metal plate roofs, flattening is performed by laminating a base treatment material on an uneven surface formed by existing roofing material, and an elastomeric waterproof sheet is laid and bonded Renovation method for metal plate roofs.   The method for repairing a metal sheet roof according to claim 1, wherein the base material is polymer cement. The method of repairing a metal plate roof according to claim 1 or 2, wherein a cement-based hydrated solidifying waterproofing agent is interposed between the base treatment material and the base made of the metal plate roof.

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