JP5686337B2 - Fireproof / waterproof exterior construction method - Google Patents

Description

  The present invention relates to a method for constructing a fireproof / waterproof exterior structure capable of constructing an exterior surface regardless of the structure of the foundation of an existing or new building and forming a double waterproof layer.

Conventionally, the waterproof sheet construction method applied to roofs, rooftops, etc. is often constructed with a waterproof sheet on the concrete base due to fireproof performance, etc., and this waterproof sheet construction method for fireproof performance etc. on the wooden base Cannot be adopted. That is, the sheet waterproofing construction method is not applicable to any building because it is restricted by the structure of the frame and the groundwork.
In addition, plastic sheets of various materials such as polyvinyl chloride and olefin are used as waterproof sheets, but each member is adversely affected by the combination of the sheet material, adhesive, and the material to be laid. was there. For example, in the case of using a PVC-based waterproof sheet, the plasticizer contained in the PVC sheet moves to an adhesive layer or an organic heat insulating material laminated over time, and the adhesive strength is reduced, or the heat insulating material is a so-called There is a possibility that the phenomenon of “thinning” may occur, that is, a phenomenon in which the thickness is reduced over time with respect to the initial thickness of the heat insulating material.

Furthermore, when refurbishing an existing waterproof roof using a waterproof sheet, there are the following problems.
Existing waterproof roofs include asphalt waterproofing, sheet waterproofing, waterproofing of paint film, etc., but the old waterproofing layer may be dissolved by the solvent, and sufficient adhesive strength may not be secured, and the plasticizer contained in the waterproofing layer may be In some cases, the adhesive force may be lowered, and defects such as peeling due to the difference in elasticity of the waterproof layer may occur. That is, new waterproofing may be limited depending on the type of existing waterproofing.

  Therefore, the present invention has an object to propose a construction method for a fireproof / waterproof exterior structure capable of constructing an exterior surface regardless of the structure of the foundation of an existing or new building and forming a double waterproof layer. And

The present invention has been proposed in view of the above, and a metal plate and a waterproof sheet are partially bonded in advance to the entire surface of the base, and a non-adhered state is formed on the edge of one side. The waterproof sheet is a floating part, the metal plate is a non-adhesive part, the floating part extends longer than the non-adhesive part, and the metal plate extends to the other side longer than the waterproof sheet at the other side edge. A method of connecting a plurality of composite waterproof sheet materials provided with a portion to construct a fireproof / waterproof exterior structure, the second adjacent to the extended portion of the first composite waterproof sheet material laid and fixed on the base A first step of polymerizing the non-adhesive portion of the composite waterproof sheet material and driving the fixing tool to fix it to the base; and a fixing portion of the fixing device driven in the first step, the second composite waterproofing Covering with a floating portion of the sheet material and covering the floating portion with the first composite waterproof sheet material A second step of bonding by polymerization in the waterproof sheet, it relates to the construction method of fire protection and waterproof outer structure characterized by comprising more.

Construction method of fire protection and waterproof outer structure of the present invention, bonded beforehand metal plate and the waterproof sheet partially, whereas the edges of the side, the unbonded form, part lifting the tarpaulin in the non-adhesion state The composite waterproof having a metal plate as a non-adhesive portion, the floating portion extending longer than the non -adhesive portion, and an extending portion where the metal plate extends longer than the waterproof sheet on the other side at the other side edge The fireproof / waterproof exterior structure to be connected is a structure in which a metal layer is formed on the back side and a waterproof layer is formed on the front side, and the metal layer is formed on the back side of the waterproof layer. By being formed, it is possible to prevent the spread of fire due to flying sparks, etc., and to construct an exterior surface with fire and waterproof functions without being restricted by the structure of the foundation of the building (construction target surface, structure of the frame) it can. Therefore, it is possible to construct other than the concrete base such as a wooden structure.
In addition, since the metal layer (metal plate) is interposed between the waterproof layer (waterproof sheet) and the base, the metal plate blocks (blocks) the plasticizer, so the waterproof sheet material, adhesive, and base There are no restrictions on the materials, etc., and it can be used for combinations of various materials, etc., and has excellent versatility. For example, in order to improve the heat insulation performance, it may be a configuration in which a heat insulating material is laid on the surface of the base, or an existing waterproof layer may be used as the base, and a new waterproof layer not related to the type of the existing waterproof layer is applied. Can do.
Further, the metal layer serving as a fireproof layer and waterproof layer formed by polymerizing and fixing the extending portion and the non-adhesive portion of the metal plate in the first step bears the strength surface, and this metal layer (metal As for the fixing of the plate) to the base and the connection part arranged in a superposed manner, mechanical fixing with a fixing device such as a screw can be adopted, the mounting is easy, and the mounting strength to the base On the other hand, the waterproof layer formed by covering and fixing the fixed part with the floating part of the waterproof sheet material in the second step adopts mechanical fixing for the metal layer Even if it is covered, it does not become a weak point of the waterproof surface, and the waterproof sheets are further heat-sealed, so that an adhesive waterproof surface can be easily formed.
And since the construction method of the metal layer in this invention also contributes to waterproofness besides contributing to fireproof performance, the primary waterproofing by a waterproof layer and the secondary waterproofing by a metal layer can be constructed, and a double waterproof structure is constructed. To be formed. For this reason, even if a problem occurs in the waterproof layer (waterproof sheet) due to aging, water can be prevented from being flooded by the waterproof property of the metal layer on the back surface side.
Therefore, the construction method of the fireproof / waterproof exterior structure of the present invention can be suitably used for construction of fireproof / waterproof roofs of various existing or new buildings. For example, as a waterproof (floor) rooftop constructed on a flat roof of a condominium, a building, etc., or as a base of a greening structure with excellent waterproof performance, or for construction of ordinary roofs of other various buildings Can also be used.

In addition, the construction method of the fireproof / waterproof exterior structure of the present invention is a double waterproof as described above, thereby preventing the so-called “smearing” phenomenon that has conventionally occurred at the time of snow accumulation and is excellent in rain performance. Can provide a roof.
Furthermore, since the fireproof / waterproof exterior structure of the present invention can also be applied to buildings that do not have fireproof performance on the foundation (frame), it can also be applied to small wooden buildings (houses, etc.) and the roof can be relaxed. It is possible to make a gradient, and an opening such as a window can be made large. Therefore, it will contribute to the design change of buildings.

  It is particularly suitable for construction of flat roofs and flat roofs. That is, not only the construction is easy, but also the shape and structure of the engaging portion etc. are basically not required as compared with the case where the exterior structure is constructed using a conventional holding member such as a hanging member. Therefore, preparation of a metal plate and a waterproof sheet as construction materials is extremely simple, manufacturing costs can be kept low, and member management is easy.

(A) The perspective view which shows the metal layer in an example of the fireproof and waterproof exterior structure of a reference example , (b) The perspective view of a fireproof and waterproof exterior structure. (A) A perspective view showing a metal layer in another example of the fireproof / waterproof exterior structure of the reference example , and (b) a perspective view showing a state in which a waterproof material is attached to a facing portion. (A) The perspective view which shows the fireproof and waterproof exterior structure which built the waterproof layer on the metal layer of FIG. 2, (b) It is an expanded sectional view of the principal part. It is a perspective view which shows the fireproof and waterproof exterior structure which built the waterproof layer on the metal layer of FIG. (A) The perspective view which shows the construction initial state in the construction method of the fireproof and waterproof exterior structure of this invention, (b) The perspective view which shows the state which lays the composite waterproof sheet material which adjoins. 5A is a cross-sectional view showing a composite waterproof sheet material for constructing the fireproof / waterproof exterior structure of the embodiment of FIG. 5, FIG. 5B shows a part of a connection method with an adjacent composite waterproof sheet material, Sectional drawing which shows the condition which superposes a protrusion part, (c) Sectional drawing which shows a part of connection method with the composite waterproof sheet material which adjoins, and shows the state which superposed | polymerized and fixed the non-adhesion part and the extension part (D) It is sectional drawing which shows a connection structure with the composite waterproof sheet material which adjoins.

The construction method of the fireproof / waterproof exterior structure of the present invention is such that the metal plate and the waterproof sheet are partially bonded in advance to the entire surface of the base, and a non-adhered state is formed on the edge portion on one side. The waterproof sheet is a floating part, the metal plate is a non-adhesive part, the floating part extends longer than the non-adhesive part, and the metal plate extends to the other side longer than the waterproof sheet at the other side edge. Connect the composite waterproof sheet material provided with a part to construct a fireproof and waterproof exterior structure.

  The foundation is not limited to RC, wooden structure, steel frame, etc., even in the case of new installation, whether it is newly installed or existing, and in the case of existing roof, it corresponds to various existing roofs such as waterproof roof, metal, tile, etc. be able to. Further, a foam heat insulating material (polystyrene or the like) may be disposed on the base surface.

The metal plate laid and fixed over the entire surface of the base is substantially flat and forms a metal layer that functions as a fireproof layer and a waterproof layer. As this metal plate, well-known metal materials such as surface decorative steel plate, laminated steel plate, plated steel plate, stainless steel plate, aluminum alloy plate, titanium alloy plate, copper plate, brass plate, lead plate, etc. are appropriately used, and substantially Is not required to be molded, but may be molded (rolled) by roll molding, press molding, or a combination of both as required, and the material thickness is not particularly limited.
In addition, the metal plate may be long or fixed, and the long metal plate may be arranged in the direction along the flow direction or in the direction of travel. As long as the entire surface of the base is covered, any material may be used.
The “substantially flat shape” basically assumes a rectangular flat metal plate. However, in the case of a specification in which side edges are overlapped and fixed, a step may be provided.
The connection state of the metal plate with the adjacent metal plate may be fixed while being opposed to the adjacent metal plate, or may be stacked and fixed in a superposed manner. Further, the state of fixing the metal plate to the base may be mechanical fixing with a screw or the like, or may be by adhesion, but mechanical fixing with the screw or the like is desirable. Furthermore, when considering fire prevention, it is desirable that the metal plate be polymerized and fixed.
In this metal layer, a superposed portion in which metal plates are laid in a polymerized state, or a facing portion in which the metal plates are laid in a facing manner indicates the flow direction or the direction of the carry.

The waterproof sheet fixed on the metal layer constitutes a waterproof layer. The waterproof sheet may be a vinyl chloride-based or olefin-based plastic sheet material or other known waterproof sheet material, and a core or reinforcing body such as a polycloth, a felt layer, a glass fiber base fabric is laminated on a resin layer such as vinyl chloride. A composite tarpaulin having the above-described structure may be used, and a composite tarpaulin excellent in fire resistance (fireproof) performance is particularly desirable. The composite waterproof sheet having a structure in which a core or a reinforcing body is laminated on the resin layer has almost no expansion / contraction deformation (dimensional change) in the planar direction, and is resistant to physical stress, particularly stretching in the planar direction and compression in the thickness direction. There is an advantage that slack or the like hardly occurs on the metal layer.
The waterproof sheet is not particularly limited as long as it can be integrally connected to an adjacent waterproof sheet by various adhesive means including welding, fusion, etc., or well-known mechanical fixing.

  In this way, a fireproof / waterproof layer made of a metal layer is formed over the entire surface of the base, and a further waterproof layer is formed by the waterproof sheet, and the waterproof layer is formed in a double layer.

In the first step of the present invention, the composite waterproof sheet material is laid and fixed on the base, and the second composite waterproof sheet material adjacent to the extended portion of the first composite waterproof sheet material laid and fixed on the base. The non-adhesive portion is polymerized, and a fixing tool is driven in and fixed to the base, thereby forming a metal layer that also serves as a fireproof layer and a waterproof layer. .
Specifically, the side edges of adjacent metal plates may be overlapped and laid in a superposed manner, or the side edges may be butted and laid in an opposing manner.

In the second step of the present invention, the fixing portion of the fixture driven in the first step is covered with the floating portion of the second composite waterproof sheet material, and the floating portion is covered with the first composite waterproof sheet. A waterproof layer made of a waterproof sheet is constructed on the metal layer formed by the first step by polymerizing and adhering to the waterproof sheet of the material .
Prior to the second step, a waterproof material may be disposed on the overlapping portion or the facing portion of the side edges of the metal plates. The waterproof material is not particularly limited as long as it is a belt-shaped waterproof sheet, a waterproof tape, a seal material (indeterminate shape), or the like and prevents rainwater from entering from the joint portion. The belt-shaped waterproof sheet and the waterproof tape as the waterproof material may be the same material as the waterproof sheet or different materials, and the surface (contact surface with the waterproof sheet) to prevent problems due to the material. ) May be made of a metal foil.

The metal plate and the waterproof sheet may be separately laid and fixed as separate members, or may be preliminarily bonded as a composite waterproof sheet material, and the fireproof / waterproof exterior structure of the present invention may be used by using this. You may make it construct. In this composite waterproof sheet material, at least a part of the waterproof sheet is not bonded to the metal plate.
For example, a part of the waterproof sheet may be formed so as to extend longer than the edge of the metal plate, or a part of the waterproof sheet may be formed so as not to adhere to the metal plate, that is, a floating part is generated. Therefore, the metal plate and the waterproof sheet may have the same length or width, or may be different from each other, and are not particularly limited. It is appropriately selected to be about ~ 95%.
Further, the integrated state of the composite waterproof sheet material may be a state in which various bonding means including welding, fusion, etc. are fully developed, that is, a state in which they are entirely bonded, for example, a dot shape Alternatively, it may be partially bonded like a stripe. However, in order to maintain an integrated state, it is necessary to bond firmly without peeling, particularly in partial bonding with a small bonding area, but the bonding means is not particularly limited. Moreover, although it may be bonded by thermal bonding, thermal fusion, or the like, it is desirable that it is bonded or fused with a heat amount or more that occurs in nature.

In this manner, the first step in the embodiment using a pre-partially composite waterproof sheet material formed by integrating a waterproof sheet on the surface side of the metal plate, the base, laying a composite waterproof sheet material, and fixed, to the base The extension part of the first composite waterproof sheet material that has been laid and fixed is polymerized with the non-adhesive part of the adjacent second composite waterproof sheet material and driven into the fixture to fix it to the base . The fixing is not particularly limited as long as it can be fixed securely and firmly. For example, mechanical fixing using a fixing tool such as a screw may be employed.
Further, in the second step, the first fixing portion of the fixture implanted in step, the first composite waterproof sheet material to該浮out portion is covered by the floating portion of the second composite waterproof sheet material waterproof sheets and polymerized adhering to it, the polymerization adhesive means, as long as it can reliably and firmly fixed, not particularly limited, for example welding, various bonding means including fusing or the like, or known The mechanical fixing may be adopted.

The reference example shown in FIG. 1 is a fireproof / waterproof construction in which a waterproof layer made of a waterproof sheet 3 is constructed on a metal layer formed by laying and fixing a rectangular metal plate 2 over the entire surface of a newly established substrate 1. It is an exterior structure. In the drawings, the front side indicates the eaves side (underwater side), and the back side indicates the ridge side (above water side).

The metal plate 2 is a plated steel plate, and as shown in FIG. 1 (a), the eaves edge of the metal plate 2 adjacent to the eave side is set to the eaves edge of the metal plate 2 disposed on the eave side. The metal layer is formed by polymerizing and fixing a fixing tool 4 such as a screw into the overlapping portion 21.
In the illustrated reference example, a step 22 corresponding to the thickness of the metal plate 2 is provided in advance on the eave side of the metal plate 2 on the ridge side, and is superposed and fixed on the ridge edge of the metal plate 2 on the eave side.

  The waterproof sheet 3 is a composite waterproof sheet (“Sana roof sheet” manufactured by New Year Beauty Industry Co., Ltd.) in which a core or a reinforcing body such as a polycloth, a felt layer, a glass fiber base fabric, etc. is laminated on a resin layer such as polyvinyl chloride. 1 (b), the eave-side waterproof sheet 3 is laid so as to cover the overlapping portion 21, and the waterproof sheet adjacent to the ridge side is provided on the edge of the ridge. Lay and fix so that the 3 eaves edges overlap. In addition, the waterproof sheet 3 was integrally joined on the metal layer on the back surface side by fusion, and was integrally connected to the adjacent waterproof sheet 3 by polymerization.

The fireproof / waterproof exterior structure of the reference example thus constructed has a configuration in which a metal layer is disposed on the back side of the waterproof layer, and the presence of the metal layer can prevent the spread of fire due to flying fire or the like. Further, since the metal plate 2 blocks (blocks) the migration of the plasticizer from the waterproof sheet 3, the metal plate 2 is not limited by the material, adhesive, base material, etc. of the waterproof sheet 3, and the heat insulating material 10 is used as the base 1. Even if it is used, it does not cause a “fading” phenomenon and can be used for a combination of various materials. Furthermore, in the fireproof / waterproof exterior structure according to the present invention, primary waterproofing by a waterproof layer and secondary waterproofing by a metal layer can be constructed, and a double waterproof structure is formed. Even if a problem occurs, the waterproof property of the metal layer can prevent water from entering.

In addition, the fireproof / waterproof exterior structure of the reference example is double waterproofed as described above to prevent the so-called “smearing” phenomenon that occurred in the past during snow accumulation, and to provide a roof with excellent rain performance. To provide

  FIG. 2 is an example showing one aspect of the first step of forming a metal layer over the entire surface of the newly provided base 1, and on this metal layer, as shown in FIGS. 3 and 4 described later. Build a waterproof layer.

In the illustrated reference example, as shown in FIG. 2 (a), the eaves edge of the metal plate 2 adjacent to the eaves side is laid opposite to the eaves edge of the metal plate 2 arranged on the eaves side, A metal layer is formed by driving and fixing a fixture 4 such as the like.

  Moreover, as shown in FIG.2 (b), the waterproof tape of the same material as the said waterproof sheet 3 was attached as the waterproof material 5 to the opposing part of the edge of metal plates 2 and 2 by fusion.

Reference example shown in FIG. 3, on the metal layer of FIG. 2, a fire and waterproof outer structure formed by building a waterproof layer by a waterproof sheet 3, 3 adjacent to Tonoki direction, the eaves-side waterproof The sheet 3 is laid so as to cover the waterproof material 5, and is laid and fixed on the ridge edge so that the eaves edge of the waterproof sheet 3 adjacent to the ridge side overlaps. In addition, the waterproof sheet 3 was integrally joined on the metal layer on the back surface side by fusion, and was integrally connected to the adjacent waterproof sheet 3 by polymerization.

Reference example shown in FIG. 4, on the metal layer of FIG. 2, a fire and waterproof outer structure formed by building a waterproof layer by a waterproof sheet 3, 3 adjacent in the left-right direction, the left tarpaulin 3 The right edge of the waterproof sheet 3 is laid and fixed so that the left edge of the waterproof sheet 3 adjacent to the right side overlaps. In addition, the waterproof sheet 3 was integrally joined on the metal layer on the back surface side by fusion, and was integrally connected to the adjacent waterproof sheet 3 by polymerization.

The embodiment shown in FIGS. 5 and 6 is a composite waterproof sheet material 6 in which the metal plate 2 and the waterproof sheet 3 are partially bonded in advance, and the fireproof / waterproof exterior structure of the present invention is applied using this. Is.
As shown in FIG. 6A, the composite waterproof sheet material 6 has a non-adhesive (non-adhesive portion 62) portion on the right edge in the figure with respect to the integrated adhesive portion 61 that does not peel off. The waterproof sheet 3 in the non-adhesive portion 62 will be described as a floating portion 3X and the metal plate 2 as a non-adhesive portion 2X. In the illustrated embodiment, the edge on the other side (left side in the figure) will be described below as a shape in which the edge of the metal plate 2 extends long to the other side (extension portion 2Y).

In order to construct a fireproof / waterproof exterior structure using this composite waterproof sheet material 6, first, as shown in FIG. 5 (a), the composite waterproof sheet material 6 is laid on the base 1 (10) in the first step. , Fix. Specifically, a fixing tool 4 such as a screw is driven into and fixed to the non-bonding portion 2X of the metal plate 2 of the composite waterproof sheet material 6.
Next, as shown in FIGS. 5B, 6B and 6C, the non-adhesive portion 2X of the adjacent composite waterproof sheet material 6 is superposed on the extending portion 2Y and the fixture 4 is driven. Fix to base 1 (10).
Thereafter, as shown in FIG. 6 (d), the floating portion 3X of the waterproof sheet 3 is polymerized on the waterproof sheet 3 of the adjacent composite waterproof sheet material 6 while covering the fixed portion of the fixture 4 in the second step. Bonded with a water-stopping material and adhesive 7.
Repeat these operations (treatments) to construct a fireproof and waterproof exterior structure.

  Thus, when the composite waterproof sheet material 6 in which the metal plate 2 and the waterproof sheet 3 are integrated in advance is used, alignment when the waterproof sheet 3 is laid becomes unnecessary, and a fireproof / waterproof exterior structure can be constructed very easily. It is.

DESCRIPTION OF SYMBOLS 1 Base 2 Metal plate 21 Superposition part 22 Step part 3 Waterproof sheet 4 Fastening tool 5 Waterproof material 6 Composite waterproof sheet material

Claims (1)

A metal plate and a waterproof sheet are partially bonded in advance to the entire surface of the base, and a non-adhesive state is formed on the edge of one side, the waterproof sheet in the non-adhered state is floated, and the metal plate is not bonded Fireproof by connecting a composite waterproof sheet material in which the floating portion extends longer than the non-adhered portion , and an extended portion in which the metal plate extends longer than the waterproof sheet on the other side is provided on the other side edge portion A method of constructing a waterproof exterior structure,
A first step of superimposing a non-adhesive portion of the adjacent second composite waterproof sheet material on the extension portion of the first composite waterproof sheet material laid and fixed on the base, and driving the fixture to fix it to the base; ,
The fixing portion driven in the first step is covered with a floating portion of the second composite waterproof sheet material, and the floating portion is polymerized and bonded to the waterproof sheet of the first composite waterproof sheet material. A second step of
A construction method of a fireproof / waterproof exterior structure characterized by comprising:

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