JP2001329660A - Repaired roof in existing corrugated slate roof and construction method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an adaptation to an existing corrugated slate roof, facilitate the execution of work, have heat insulating properties, and respond sufficiently to the thermal expansion and contraction of a thermal insulating component member installed interiorly in order to cope with the temperature difference between seasons. SOLUTION: Thermal insulating materials 4, 4, etc., the lower surfaces of which are made corrugated bonding surfaces 4a having approximately the same shape as the surface of the existing corrugated slate roof A, are disposed and fixed on a roof to be repaired by means of a urethane resin 3 applied along the surface of the roof A. The surfaces of the many materials 4, 4, etc., are approximately uniformly aligned in order to be made almost flat surfaces. A lot of roof board materials B1, B1, etc., for repair are stuck to the surface of the material 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can be applied to an existing roof having a corrugated slate, is easy to construct, has heat insulating properties, and is provided with a heat insulating component which is provided with respect to seasonal temperature differences. The present invention relates to a renovated roof capable of sufficiently coping with thermal expansion and contraction of a roof and a method for constructing the roof.

[0002]

2. Description of the Related Art Conventionally, there are various types of renovated roofs and construction methods thereof, and these are widely used and used as repairs for aging roofs. By the way, in general, when installing a renovated roof, if the existing roof is a corrugated slate tile, use a structural material that supports the corrugated slate tile and a fastener such as a bolt that connects the corrugated slate tile. To fix the bracket and the suspension.

[0003]

However, the fasteners for connecting the corrugated slate roof tiles may not be used due to corrosion or deterioration in strength due to exposure to rain or wind for a long period of time. possible. For this reason, even if it is not possible to fix the metal fittings and the hanging pieces, or if they can be used, it is difficult to firmly fix the metal fittings and the hanging pieces.

[0004] Furthermore, there are few renovated roofs having heat insulating properties. Among them, when the heat insulating material is laid between the existing roof of the corrugated slate and the renovated roof, the heat insulating performance between the adjacent heat insulating materials is low. Inferior. In addition, since the sealing state between the existing roof of the corrugated slate and the renovated roof is inferior, dew condensation easily occurs.

[0005] As described above, there are not many renovation methods having excellent heat insulation properties. However, a fixed-size heat insulating material is required to provide the renovation roof with properties such as heat insulation and heat retention. The sheet is laid between the existing corrugated slate roof and the renovation shingle. However, since the heat insulating material is generally of a fixed size, a seam exists when a large number of heat insulating materials are arranged.

[0006] When the seam portion is slightly separated, the heat insulation may be inferior to other portions. In addition to this, thermal expansion and contraction occur in the heat insulating components due to seasonal temperature differences. The heat insulating component cannot cope with the thermal expansion and contraction, causing cracks and the like, deteriorating the heat insulating performance and causing rainwater to enter.

[0007] Further, when dew condensation occurs between the existing roof and the renovated roof of the corrugated slate having inferior sealing properties, the condensed water flows down from the seam at the adjacent portion of the fixed-sized heat insulating material to the existing roof of the corrugated slate. Promotes its corrosion,
Or, if there is already a corroded part, in the worst case, there is a risk of water leaking to the indoor side.

[0008]

Means for Solving the Problems Therefore, the inventor of the present invention has conducted intensive studies to solve the above-mentioned problems, and as a result, the present invention
A heat insulating material whose lower surface is made of a urethane resin applied along the surface of the existing wavy slate roof and whose wavy adhesive surface is substantially the same as the surface shape of the existing wavy slate roof is arranged and fixed,
The renovated roof of the existing roof having a corrugated slate in which the surface of the plurality of heat insulating materials is substantially uniformly aligned to be a flat surface, and the surface of the heat insulating material is adhered with a number of roofing materials for renovation, and a method of constructing the roof. With the above, the construction is simple and has heat insulation properties, and it is possible to sufficiently cope with the thermal expansion and contraction of the heat insulation components installed therein with respect to the seasonal temperature difference. It is.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, the existing roof A of the waveform slate is
Composed of a number of corrugated slate tiles A ₁ , A ₁ ,.
The ends of adjacent corrugated slate tile materials A ₁ , A ₁ are overlapped and fixed with bolts implanted in the structural material (FIG. 1).
reference).

When the urethane resin 3 adheres to an object by means such as coating or spraying, it has a property of being cured from a flowing (gel state) state to a cured state or from a liquid state over time. And, as described above, the properties gradually change with the passage of time from the injection, but through the liquid immediately after the injection,
From the liquid state, it becomes a cream state that performs foaming activity.

From the cream state, the resin gradually changes to a resin (gel) state, in which curing starts, and further changes to a foamable solid (rise) at the final stage.
The time required to reach the cream state is cream time, the time required to reach the gel state is gel time,
The time required to reach the rise state is called rise time.

The urethane resin 3 has foaming properties and non-foaming properties. The foamable urethane resin 3 has many bubbles p, p,... In a solid state. Non-foamable urethane resin 3
Is in a hardened state, and there are no or very few bubbles p, p,. Injecting the urethane resin 3 onto the corrugated slate tile material A ₁ (or rooftop) through an injector 8,
Sprayed to a uniform thickness and applied.

As described above, the urethane resin 3 is basically sprayed on site through the injection device 8. The applied state of the urethane resin 3 is to form a heat insulating layer having a continuous and uniform surface. Coating thickness of the urethane resin, specifically 2 or from the surface of the wave slate existing corrugated surface 1 of the waveform slate tile material A ₁ constituting the roof A to 5
Although the thickness is on the order of mm, it goes without saying that the thickness changes appropriately depending on the situation.

As a result, the urethane resin 3 is
As a layer is sprayed through an injection device or the like, a layer having excellent heat insulating properties due to foaming properties is formed. In the urethane resin 3, a large number of bubbles p, p,... Are generated therein, but the large number of bubbles p, p,. With this, it is possible to further improve the waterproofness as well as the heat insulating property (see FIGS. 2A and 2B). In particular,
Since each bubble p, p, ... is independent,
It is possible to prevent rainwater or the like from penetrating and to improve the watertightness (see FIG. 2C).

FIGS. 3A and 3B show an embodiment in which the urethane resin 3 is made non-foamable, in which bubbles p, p,.
Does not exist. Further, in this embodiment, there are included those in which air bubbles p, p,... Are scarcely present, so that a stronger adhesive force can be exhibited and the waterproofness can be improved (see FIG. 3 (C)). .

That is, by making the urethane resin 3 non-foaming, the layer made of the urethane resin 3 becomes a very dense layer, and since it has almost no bubbles p, p,... . Therefore, it is suitable for an area where dew is easily formed and an area where it is rainy.

As described above, the urethane resin 3 includes:
It serves as an adhesive. When sprayed onto the clean roof A and the roof, the urethane resin 3 layer after curing is strongly adhered to the roof A and the roof. Furthermore, when the urethane resin 3 layer is in a gel state during the curing reaction, if heat insulating materials 4, 4,... Are laid thereon and pressurized, the two adhere strongly after curing. That is, the existing roof A or roof of the corrugated slate and the heat insulating materials 4, 4,...

Here, in order to obtain a stronger adhesiveness, it is preferable to spray a non-foamed urethane resin 3 under the climatic condition (the existing roof A or corrugated slate having a large thermal contraction or thermal expansion in an area having a large temperature difference). In the case of a rooftop, for example, in the case of an austenitic stainless steel roof, a strong adhesive strength is required) and the weight of the heat insulating materials 4, 4,. good.

The urethane foam resin layer can be coated with a small amount of polyurethane resin to be thick, so that it is very economical, and the generated cells p, p,... Are closed cells, and have excellent waterproofness. Because it is in a state where air is trapped, it exhibits extremely excellent heat insulating properties. Therefore, when excellent heat insulation is required,
It is appropriate that the layer of the foamable urethane resin 3 be the first layer.

Next, the heat insulating material 4 is placed and adhered in a gel time state of the urethane resin 3 sprayed on the surface of the existing roof A of the corrugated slate. The heat insulating material 4 is specifically formed in a board shape and is formed from various materials. As a specific material, it is formed of a polyurethane foam, and in addition, wood, a wood wool board, a resin board, and the like. The heat insulating material 4 has a substantially rectangular cross section, and its surface is formed flat. In addition, there is an example in which the heat insulating material 4 has a corrugated adhesive surface 4a substantially the same as the corrugated surface of the existing roof A of the corrugated slate (see FIG. 4).

The formation of the corrugated adhesive surface 4a improves the bondability with the surface of the existing roof A of the corrugated slate. The waveform adhesive surface 4a is obtained by the waveform cross-sectional shape substantially the same shape of wave slate tile material A ₁ constituting the waveform slate existing roof A, when placed on the waveform slate existing roof A, the waveform The projections and depressions overlap well (see FIG. 6B).

Next, the renovation roof B is composed of a plurality of renovation roofing sheet materials B ₁ , B ₁ ,. There are various types of the metal roof. Specifically, it is composed of a repair main plate 5, a repair connection rising portion 6, 6. The repair main plate 5 has a flat surface with a relatively large area.

The repair connection rising portions 6, 6 connect adjacent repair roofing plates B ₁ , B _{1 to} each other. As an example of the modified connection rising portions 6, 6, a vertical flat roof is constructed, and a substantially inverted J-shaped vertically rising connection portion 6a is placed over the connection portion from above. 2 (A), (B), and (3) in FIG.
(A), (B) etc.].

Other examples of the modified connection rising portions 6, 6 include a round type (see FIG. 7A), a square type (see FIG. 7B), a tiled roof type, and the like. [See FIG. 7 (C)]. Also, there are fitting type and round type folded plate roofs, and the adjacent renovation roof plate materials B ₁ , B ₁ can be connected to each other by the fitting type etc. [FIG. ), (D)].

Next, the adhesive 7 is applied to the large number of heat insulating materials 4,
On the surface on which 4,... Are arranged, the renovation roof plate material B ₁ ,
B ₁ ,... Are respectively fixed (see FIG. 6B). Examples of the adhesive 7 include a one-part moisture-curable urethane resin adhesive or a two-part reaction room-temperature-curable epoxy resin adhesive. Moreover, it may be composed of a chloroprene-based adhesive. Furthermore, the present invention is not limited to the type of adhesive, the material of the repair roof plate B ₁ and the heat insulating material 4, it may be used a suitable adhesive 7.

First, for the one-component moisture-curable urethane resin adhesive, the curing time is adjusted by mixing water. As a specific example, when about 10% of water is mixed, the curing time (gel time) is about 3 minutes. This application amount is about 200 g / m ² .

Next, as a specific example of the two-component reaction cold curing type epoxy resin-based adhesive, the main component is an epoxy resin and the curing agent is polyamidoamine, and the compounding ratio is about 100: 100. It is. The curing time of the adhesive with the above configuration is about 7 minutes (temperature environment of 20 ° C.).

[0028]

[Action] First, injecting a urethane resin 3 flowing form from the nozzle of the waveform slate tile material A ₁ of the injector onto the corrugated surface 1 of the waveform 8 constituting the waveform slate existing roofing A [5
(A) and (B)]. The urethane resin 3 gradually cures over time. There are cream time, gel time and rise time in the curing process,
When the urethane resin 3 is in a gel state in which the resinization starts, the heat insulating materials 4, 4,... Are placed (see FIG. 6A). The lower surface side of the heat insulating material 4 is the same as that of the existing roof A
Because the surface shape is the same as the corrugated adhesive surface 4a,
The corrugated slate is polymerized so as to match the unevenness of the existing roof A.

Then, the heat insulating materials 4, 4,... Are arranged on the urethane resin 3 in the gel state, and the surfaces of the heat insulating materials 4, 4,. Next, the heat insulating materials 4 arranged in parallel,
Its adjacent renovation roof plate B ₁ on the flat surface formed by the urethane resin 3 between the heat insulating material 4 which is placed. The renovation roof slab B ₁ is provided with an adhesive 7 on the back side of the renovation main plate 5.
Is applied, and the repair main plate 5 is adhered to the flat surface formed by the heat insulating material 4 and the urethane resin 3 [FIG.
(B)).

[0030] Then, you are bonded to the flat surface of renovation roofing plate B ₁ of next order is formed by the heat insulating material 4 and the urethane resin 3 is adjacent to the repair roof plate B ₁ prior position, adjacent renovation Of the roof shingles B ₁ , B ₁ for refurbishment, and are connected to each other by the connection rising portions 6. This is sequentially repeated, and the renovation roof B is constructed. When the existing roof A of the corrugated slate is of a vertical flat type, the corrugated slate tiles A ₁ , A ₁ adjacent to the existing roof A of the corrugated slate between the adjacent heat insulating materials 4.
It is in the state where the connection parts of each other are located.

In the present invention, when the existing slate roof A is used as a roof, the urethane resin 3 is applied on the existing slate roof A by structurally reinforcing the existing roof A. In the same manner as described above, a uniform surface is formed, and the heat insulating materials 4 are arranged at appropriate intervals. Then, a flat surface is formed by the urethane resin 3 and the heat insulating material 4, and the renovated roof B is attached to the flat surface using the adhesive 7, and the deteriorated roof is renovated to the renovated roof B. It is.

[0032]

According to the first aspect of the present invention, the corrugated adhesive surface 4a of the urethane resin 3 applied along the surface of the existing corrugated slate roof A has a lower surface substantially identical to the surface shape of the existing corrugated slate roof A. Are arranged and fixed. The surfaces of the many heat insulating materials 4, 4,... Are substantially uniformly arranged to be flat, and a large number of repairs are made on the surface of the heat insulating material 4. The roof slabs B ₁ , B ₁ ,... Are attached to the existing roof, and the repaired roof having heat insulation properties can be easily and quickly constructed. In particular, since the layer made of the urethane resin 3 has shrinkage, it can sufficiently cope with a temperature difference from a high temperature to a low temperature.

Next, a second aspect of the present invention relates to an existing roof A having a corrugated slate, a urethane resin 3 which is hardened from a fluid state and is applied in a layer on the surface of the existing roof A having a corrugated slate, A number of heat insulating materials 4, 4,... Arranged and fixed as a substantially uniform flat surface on the existing roof A of the wavy slate with the urethane resin 3. , And a number of renovation roof slabs B ₁ , B ₁ ,... Attached to the surfaces of the plurality of heat insulating materials 4, 4,. First, construction of a renovated roof can be performed easily and quickly, and second, a renovated roof having heat insulating properties can be provided.

The above effect will be described in detail. A large number of heat insulating materials 4, 4,... Are fixed by the urethane resin 3 applied on the existing roof A of the corrugated slate, and the surfaces of the heat insulating materials 4, 4,. The renovation roof B is easily and quickly constructed because the renovation roof slats B ₁ , B ₁ ,... Are adhered on the heat insulating materials 4, 4,. Is what you can do.

Since the lower surface of the heat insulating material 4 is formed with a corrugated adhesive surface 4a having a substantially corrugated cross section formed substantially in the same shape as the surface of the existing corrugated slate roof A, the surface of the existing corrugated slate roof A is formed. Is good. Therefore, in a state where the heat insulating material 4 is mounted on the existing roof A of the corrugated slate, the surfaces of the large number of heat insulating materials 4, 4,...

Further, the layers formed of the heat insulating material 4 and the urethane resin 3 act synergistically to obtain better heat insulating performance as compared with the heat insulating property of the heat insulating material 4 alone. . In addition, the urethane resin 3 and the heat insulating materials 4, 4,...
Is installed, the existing roof A, the heat-insulating materials 4, 4, ... and the renovation roof B, which has almost no gap inside, can be made into a roof with a substantially integrated structure, and the structure is strong. Can be.

Moreover, the urethane resin 3 serves as an adhesive, and when it is sprayed onto the clean roof A or the roof, the layer made of the urethane resin 3 after curing hardens. Existing roof A
Alternatively, it can be strongly fixed to a rooftop surface. Further, when the urethane resin 3 layer is in a gel state during a curing reaction, the heat insulating materials 4, 4,... Are laid thereon and pressed to strongly adhere after curing.

Next, a third aspect of the present invention is directed to the first or second aspect.
In the above, the urethane resin 3 is a non-foaming corrugated slate as an improved roof in the existing roof,
A stronger adhesive force can be exhibited, and the waterproofness can be further improved. That is, the non-foamable urethane resin 3 is
It is a very dense layer and is excellent in waterproofness.

Therefore, it is suitable for an area where dew condensation is apt to occur or an area where it rains heavily. The non-foamed urethane resin 3 is more excellent in flexibility than other resin layers, and is used in an area where the temperature difference between summer and winter is larger, and the renovated roof B is used.
By using it as the first layer, the degree of safety against shrinkage and thermal expansion (against cracks) is further enhanced.

Next, the invention of claim 4 relates to claim 1 or 2
In the above, the urethane resin 3 is a modified roof of an existing roof of a foamed corrugated slate, so that the urethane resin 3 can be slightly changed in shape such as elasticity and flexibility. Because of this, seasonal changes, especially in winter,
Sufficient elasticity can be exhibited in an area where the temperature difference is large in summer, and the occurrence of cracks in the heat insulating structure layer can be prevented.

The foamable urethane resin 3 can be coated (applied) in a relatively small amount with a relatively large thickness, so that it is very economical and the generated bubbles p, p,.
Since the cells are closed cells and contain air therein, extremely excellent heat insulating properties can be exhibited.

Next, according to a fifth aspect of the present invention, in the fourth aspect, the foamable urethane resin 3 is a modified roof of an existing roof of a corrugated slate in which a large number of cells are closed cells in a cured state. It is possible to provide a renovated roof with excellent watertightness while being foamable. That is, the urethane resin 3 has a large number of bubbles p, p,.
Are not intermingled with each other, so that they do not communicate through the bubbles p, p, ..., so that rainwater or the like does not flow through a large number of bubbles p, p, ... to prevent rainwater from entering. Can be done. Therefore, the heat insulation structure can be made excellent in waterproofness and stretchability.

Next, a sixth aspect of the present invention is to apply a urethane resin 3 which changes from a fluid state to a solid state with the lapse of time on the existing roof A of the corrugated slate in a layered form, and in a gel state of the urethane resin 3, Insulating materials 4, 4,...
The number and arrangement, said multiple insulation 4,4, ... is the surface substantially uniform flat surface with a large number of repair roof plate B ₁ on the heat insulating material 4 of said multiple, B _1, adhered to ... By adopting the method of repairing the renovated roof of the existing wavy slate roof, the renovated roof construction can be performed easily and quickly, and the finish can be extremely good.

To explain the above effect in detail, the heat insulating material 4 has a lower surface formed as a corrugated adhesive surface 4a substantially identical to the surface shape of the existing corrugated slate roof A. Then, by mounting the heat insulating material 4 on the existing roof A of the corrugated slate to which the urethane resin 3 in the gel state is applied, a large number of heat insulating materials 4, 4,. The corrugated adhesive surface 4a is satisfactorily joined to the existing roof A of the corrugated slate.

This makes it easy to make the surfaces of the heat insulating materials 4, 4,...
Insulation material 4, which becomes a flat surface on the existing roof A of the corrugated slate 4,
4, ... can be fixed. Furthermore, a number of heat insulating material 4, 4, that is ... surface aligned with the uniform surface, renovation roofing plate B _1, B _1, to be easily placed on ..., renovation roofing plate B _1, B ₁ Of the adhesive 7 for adhering the heat-insulating materials on the heat insulating materials 4, 4,... These series of construction work can be carried out extremely simply and quickly and does not require skilled skills, so that construction costs can be kept low.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a main part of the present invention.

2A is a longitudinal sectional front view of a main part of the present invention using a foamable urethane resin. FIG. 2B is a partially enlarged longitudinal front view of FIG. 2A. FIG. 2C is an enlarged view of a foamable urethane resin.

3 (A) is a longitudinal sectional front view of a main part of the present invention using a non-foamable urethane resin. FIG. 3 (B) is a partially enlarged longitudinal sectional front view of (A). Enlarged view

FIG. 4 is an exploded view showing the configuration of the present invention.

FIG. 5 (A) is a vertical sectional front view of an existing roof of a corrugated slate. FIG. 5 (B) is a process diagram of applying urethane resin to the existing roof of a corrugated slate.

FIG. 6 (A) is a process diagram in which a heat insulating material is placed on an existing roof of a corrugated slate; FIG. 6 (B) is a process diagram in which a repair roof sheet material is placed on the heat insulating material;

FIG. 7 (A) is a longitudinal sectional front view of a main part of an embodiment in which a roof plate for repair is rounded, and FIG. 7 (B) is a vertical sectional front view of a main part in an embodiment in which a roof plate for repair is squared. ) Is a vertical section front view of an embodiment in which the roof plate for repair is a tile bar type. (D) is a vertical front view of an embodiment in which the repair roof is a fitting type folded plate roof. Longitudinal front view of the embodiment with a folded plate roof

[Explanation of symbols]

A: Existing roof with corrugated slate B ₁ : Roof plate for renovation 3: Urethane resin 4: Insulation material 7: Adhesive p: Air bubbles

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Ishikawa 4- 13-23, Shibaura, Minato-ku, Tokyo Inside Sanko Metal Industry Co., Ltd. (72) Inventor Masaaki Onishi 4- 13-23, Shibaura, Minato-ku, Tokyo F term (reference) in Sanko Metal Industry Co., Ltd. 2E108 AS02 BB04 BN01 BN05 CV05 CV06 DD07 FG12 GG01 GG20

Claims (6)

[Claims] 1. A heat insulating material whose lower surface is made of urethane resin applied along the surface of an existing corrugated slate roof and whose lower surface is substantially the same as the surface shape of the existing corrugated slate roof is arranged and fixed. The renovated roof of the existing corrugated slate roof, characterized in that the heat insulating material has a substantially uniform surface and a flat surface, and a number of renovation roofing plates are adhered to the surface of the heat insulating material. 2. An existing corrugated slate roof, a urethane resin which is hardened from a fluid state and is applied in a layered manner on the surface of the existing corrugated slate roof, and a corrugated adhesive surface whose lower surface has substantially the same shape as the surface of the existing corrugated slate roof. A large number of heat insulating materials arranged and fixed as a substantially uniform flat surface on the existing roof of the wavy slate with the urethane resin, and a large number of repair roofs stuck on the surfaces of the large number of heat insulating materials A renovated roof of an existing roof with a corrugated slate, characterized by being made of plate material. 3. The renovated roof according to claim 1, wherein the urethane resin is non-foamed. 4. The renovated roof according to claim 1, wherein the urethane resin is foamable. 5. The renovated roof according to claim 4, wherein the foamable urethane resin is in a cured state and a number of cells are closed cells. 6. A layer of urethane resin which changes from a fluid state to a solid state with the lapse of time on the existing roof of the corrugated slate, and in a gel state of the urethane resin, the lower surface has the surface shape of the existing roof of the corrugated slate. A large number of heat insulating materials having substantially the same corrugated adhesive surface are arranged, and the surface of the large number of heat insulating materials is a substantially uniform flat surface, and a large number of renovation roofing sheets are stuck on the large number of heat insulating materials. A method of repairing a roof with an existing roof with a wavy slate.