JP4614549B2 - Waterproof structure at joint portion of roof panel and waterproof method at joint portion of roof panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure at a joint portion of a roof panel and a waterproof method thereof.
[0002]
[Background technology]
As a roof of a building, a panel construction method is known in which a plurality of roof panels produced in a factory are carried into a construction site in order to reduce field work, and a roof is formed by combining the roof panels at the construction site. The roof panel 101 used in this construction method is a concrete field material 103 arranged on a base frame 102 formed by combining steel materials and the like, and water from the surface of the field board 103 which is affixed on the field plate 103. And a waterproof sheet 104 that prevents the entry of.
[0003]
Further, at the time of construction, the gaps C are formed between the roof panels 101 so as to absorb errors in standing dimensions and errors in construction dimensions, and the roof panels 101 are arranged. Further, the clearance C between the roof panels 101, that is, the joint portion X of the roof panel 101, is waterproofed to prevent water from entering from the gap C.
[0004]
As a waterproofing process at the joint portion X, first, the iron plate 105 is bridged across the gap C formed between the roof panels 101. Then, the waterproof sheet 104 provided on one roof panel 101 and the waterproof sheet 104 provided on the other roof panel 101 are overlapped with each other on the iron plate 105 and brought into close contact with each other from the joint portion X. Blocking water ingress.
[0005]
[Problems to be solved by the invention]
However, in the roof formed by using this conventional method, the waterproof sheet 104 and the iron plate 105 overlap each other at the joint portion X as described above, so that the undulation is locally formed on the roof surface. Therefore, there arises a problem that the drainage of the entire roof is impaired due to this undulation. In particular, when a horizontally expanded roof represented by a land roof is formed, this phenomenon is noticeable and needs to be improved.
[0006]
Therefore, this invention makes it a subject to provide the waterproof structure in the junction part of a roof panel which can perform waterproofing processing, without impairing drainage. It is another object of the present invention to provide a waterproofing method at a joint portion of a roof panel that can be waterproofed without impairing drainage.
[0007]
[Means for Solving the Problems]
The present invention has the following configuration in order to solve the above technical problem.
That is, it is a waterproof structure at a joint portion of roof panels arranged adjacent to each other, and one roof panel surface is provided at a high position with respect to the other roof panel surface, and a flat plate material on the other roof panel However, it is placed so that the edge part touches the end surface of the one roof panel and lower than the surface of the one roof panel, and the waterproof sheet is placed on the other roof panel. provided so as to cover the surface of the roof panel, a waterproof sheet is provided on the one roof panel is said on the waterproof sheet provided on the other extends on the roof panel its other roof panel It is characterized by being overlapped on and closely adhered to the plate material .
[0008]
In the present invention configured as described above, the undulation of the joint portion accompanying the waterproofing process is allowed by the height difference formed between the one roof panel and the other roof panel, that is, the step. For this reason, the unevenness | corrugation accompanying the waterproof process in a junction part can be made small. Therefore, the movement of water at the joint portion is smooth, and extremely good drainage is obtained.
[0009]
The difference in height between the surface of the one roof panel and the surface of the other roof panel is preferably large relative to the thickness of the one waterproof sheet and the other waterproof sheet. Furthermore, you may attach a downward slope from one roof panel to the other roof panel. In this case, a surface shape without undulation is obtained from one roof panel to the other roof panel. Further, the direction of drainage is determined from one roof panel toward the other roof panel.
[0010]
Also, the other tarpaulin is lifted by the plate material in the junction portion. For this reason, wraparound of water from the other roof panel side to the joint portion can be prevented. In addition, each roof panel arrange | positioned adjacently may be arrange | positioned substantially horizontal, and may form a land roof. Here, “substantially horizontal” is a concept that allows a slight inclination. However, the inclination is such that it can be easily walked on the roof.
[0011]
In order to solve the above technical problem, the present invention may employ the following method. That is, a waterproofing method in a joint portion of adjacent roof panels, in which one roof panel surface is provided at a high position with respect to the other roof panel surface, and then a flat plate material is formed on the other roof panel Is placed with its edge touching the end face of the one roof panel and lower than the surface of the one roof panel,
Next, a waterproof sheet is provided on the other roof panel so as to cover the surface of the plate member and the other roof panel,
Next, the waterproof sheet provided on the one roof panel is extended on the other roof panel, and the waterproof sheet provided on the other roof panel is overlapped and adhered on the plate member. Features.
[0012]
In this method, the undulation of the joint portion accompanying the waterproofing process is allowed by the height difference formed between one roof panel and the other roof panel, that is, a step. For this reason, the unevenness | corrugation accompanying the waterproof process in a junction part can be made small. Therefore, the movement of water at the joint portion is smooth, and extremely good drainage is obtained. In addition, you may perform the operation | work which provides one roof panel surface in a high position with respect to the other roof panel surface after each waterproof sheet | seat is piled up mutually.
[0013]
The height difference between the surface of the one roof panel and the surface of the other roof panel is preferably larger than the thickness of the one waterproof sheet and the other waterproof sheet.
[0014]
Further, it is more preferable that the respective roof panels are arranged substantially horizontally and have a downward slope from the one roof panel to the other roof panel. Note that the downward slope from one roof panel to the other roof panel is such that it can be easily walked on the roof.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a mode in which the present invention is applied to a flat roof in which the entire roof is developed substantially horizontally will be described.
[0017]
FIG. 1 is a schematic configuration diagram of the entire roof. The roof 1 shown in FIG. 1 is configured by combining a plurality of roof panels P produced in advance in a factory in order to reduce work on site. More specifically, at the time of construction, the roof panel P is carried in from the factory, and the roof 1 is formed adjacently on a building unit (not shown) serving as a construction site. That is, the flat roof shown in the present embodiment is a roof 1 constructed by a so-called panel method.
[0018]
Each of the roof panels P forming the roof 1 is made of a concrete base plate 3 that is substantially rectangular and forms a main portion of the roof, and water from the surface of the base plate 3 that is affixed to the base plate 3. And a waterproof sheet 4 that prevents intrusion of the water. Moreover, each roof panel P is adjacently arranged on the building unit using the base frame 2 assembled at predetermined intervals on the beam 8 of the building unit (not shown).
[0019]
Moreover, each roof panel P attached on the beam 8 is disposed with a gap C formed between other roof panels P adjacent to absorb an error in standing dimensions and an error in construction dimensions. . That is, a gap C is formed in the joint portion X of each roof panel P.
[0020]
For this reason, in the present invention, the following waterproof treatment is performed in order to prevent water from entering from the joint portion X. Hereinafter, the waterproof structure and the waterproof method of the joint portion X, which is the gist of the present invention, will be described in detail based on the construction procedure.
[0021]
First, in the present embodiment, as shown in FIG. 2, each roof panel P is arranged so as to be slightly inclined from the roof center O to the roof edge S with the roof center O as a base point. At this time, the roof panel P provided at a position closer to the roof center O is provided at a higher position than the other roof panel P. That is, one roof panel surface is provided at a higher position than the other roof panel surface.
[0022]
In the following description, for convenience, the roof panel P provided closer to the roof center O is referred to as one roof panel P1, and the roof panel P provided farther from the roof center O is referred to as the other. This will be described as the roof panel P2.
[0023]
Thus, in the roof 1 where each roof panel P is arrange | positioned, a roof center becomes the highest position. Accordingly, the direction of drainage on the roof 1 is the direction of drainage flowing from the roof center O toward the roof edge S as indicated by the arrows in FIG. In the present embodiment, since the present invention is applied to a flat roof, the downward slope from the roof center O to the roof edge S is set to an inclination that allows easy walking.
[0024]
Then, the iron plate 5 is arrange | positioned so that the clearance gap C of the junction part X may be covered. In arranging the iron plate 5, for example, the following procedure is performed. First, the iron plate 5 is mounted on the field board 3 in the other roof panel P2. Then, the edge of the iron plate 5 is applied to the end surface 6 of the roof panel P1 on one side, and the iron plate 5 is positioned at the joint portion X.
[0025]
In addition, this iron plate 5 is provided in order to improve the adhesiveness of each waterproof sheet 4 in the junction part X, and to prevent the water from flowing into the junction part X from the other roof panel P1. In more detail, it describes in full detail with description of the waterproof sheet 4 later. In this embodiment, an iron plate is used, but, of course, a resin plate or the like may be used. More preferably, a fire-resistant plate material is suitable.
[0026]
And in this Embodiment, the waterproof sheet 4 is installed so that this iron plate 5 and the field plate 3 may be covered. The waterproof sheet 4 is cut slightly larger than the base plate 3 when each roof panel P is manufactured. For this reason, at the time of construction of the roof 1, the waterproof sheet 4 protruding from the top plate 3 covers the joint portion X of the roof panel P.
[0027]
When installing the waterproof sheet 4, first, the waterproof sheet 4 is affixed on the surface of the other roof panel P2 so as to cover both the iron plate 5 and the field plate 3 together. Next, the waterproof sheet 4 provided on one roof panel P1 is extended on the other roof panel P2, and is overlaid on the waterproof sheet 4 provided on the other roof panel P2.
[0028]
That is, as shown in FIG. 4, at the joint portion X, the iron plate 5, the waterproof sheet 4 provided on the other roof panel P2, and the waterproof sheet 4 provided on the one roof panel P1 overlap each other to form a gap. C will be covered. Therefore, the entry of water from the gap C is prevented.
[0029]
Here, looking back on the positional relationship between one roof panel P1 and the other roof panel P2, in the present invention, as described above, one roof panel P1 is provided at a higher position than the other roof panel P2. That is, a step T is formed between one roof panel P1 and the other roof panel P2.
[0030]
For this reason, the undulation associated with the waterproof treatment of the joint portion X, which hinders drainage in the roof 1, is allowed by this step T, and there is little undulation from one roof panel P1 to the other roof panel P2. A surface shape is obtained.
[0031]
In the flat roof shown in the present embodiment that has been waterproofed in this way, the undulation associated with the waterproofing is allowed by the step T, and therefore water is smoothly drained from the roof center O toward the roof edge S. . Therefore, excellent drainage can be obtained even on the roof constructed by the panel method.
[0032]
In the present embodiment, the height difference H in the step T is set to be larger than the thickness obtained by superimposing at least one waterproof sheet 4 and the other waterproof sheet 4. The reason for this is to obtain a surface shape having no undulation from one roof panel P1 to the other roof panel P2. In the present embodiment, the height difference H of about 4 mm is provided in consideration of the thickness of a general waterproof sheet 4.
[0033]
Moreover, in this Embodiment, the iron plate 5 is arrange | positioned in the lower surface side of the waterproof sheet 4 provided in the other roof panel P2 in the junction part X, the waterproof sheet 4 is lifted up slightly by the thickness of the iron plate 5, and water wraps around. However, the iron plate 5 is not necessarily required. For example, when the gap C of the joint portion X is relatively narrow, the iron plate 5 may be omitted to perform waterproofing.
[0034]
Further, in the present embodiment, the present invention is applied to a flat roof developed substantially horizontally. However, the present invention can be widely applied not only to a flat roof but also to various roofs in general.
[0035]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a waterproof structure at the joint portion of the roof panel that can be waterproofed without impairing drainage. Moreover, the waterproofing method in the junction part of a roof panel which can perform waterproofing processing without impairing drainage can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an outline of a roof according to an embodiment.
FIG. 2 is a diagram showing a gradient between roof panels according to the present embodiment.
FIG. 3 is a schematic diagram showing an outline of a waterproof structure in a roof panel joint portion according to the present embodiment.
FIG. 4 is an enlarged cross-sectional view of a main part of a waterproof structure in a roof panel joint portion according to the present embodiment.
FIG. 5 is an enlarged cross-sectional view of a main part showing a waterproof structure of a joint portion in a conventional roof panel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof 2 Ground frame 3 Field plate 4 Waterproof sheet 5 Iron plate 6 Field plate side end surface 8 Beam 101 Roof panel 102 Base frame 103 Field plate 104 Waterproof sheet 105 Iron plate C Crevice O Roof center P Roof panel P1 One roof panel P2 The other Roof panel S Roof end T Step X Joint part

Claims (7)

It is a waterproof structure in the joint part of the roof panel arranged adjacently,
One roof panel surface is provided at a high position with respect to the other roof panel surface, and a flat plate material is placed on the other roof panel so that the edge of the plate touches the end surface of the one roof panel. And is placed lower than the surface of the one roof panel,
A waterproof sheet is provided on the other roof panel so as to cover the surface of the plate member and the other roof panel,
Characterized in that the tarpaulin provided on the roof panel of the one has been in close contact the plate on the superposed in on a waterproof sheet provided on the other extends on the roof panel its other roof panel Waterproof structure at the junction of roof panels.  The height difference between the surface of the one roof panel and the surface of the other roof panel is large relative to the thickness of the one waterproof sheet and the other waterproof sheet superimposed. Item 10. A waterproof structure at a joint portion of the roof panel according to Item 1.  The waterproof structure at the joint portion of the roof panel according to claim 1, wherein a downward slope is given from the one roof panel to the other roof panel. The waterproof structure in the joint part of the roof panel in any one of Claim 1 to 3 by which each said roof panel arrange | positioned adjacently arrange | positions substantially horizontally, and forms the land roof. A waterproofing method at a joint portion of adjacent roof panels,
After the surface of one roof panel is provided at a high position with respect to the surface of the other roof panel, a flat plate material is placed on the other roof panel so that the edge thereof contacts the end surface of the one roof panel And placed lower than the surface of the one roof panel,
Next, a waterproof sheet is provided on the other roof panel so as to cover the surface of the plate member and the other roof panel,
Next, the waterproof sheet provided on the one roof panel is extended on the other roof panel, and the waterproof sheet provided on the other roof panel is overlapped and adhered on the plate member. The waterproofing method in the junction part of the roof panel characterized. According to claim 5, characterized in that a large relative to the thickness of the height difference, which are superposed with the one tarpaulin and the other tarpaulin and said the one roof panel surface the other roof panel surface Waterproofing method for joints of roof panels. 7. The waterproofing method at the joint portion of the roof panel according to claim 5 , wherein the roof panels are arranged substantially horizontally and are inclined downward from the one roof panel to the other roof panel.

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