JP7476404B1 - Rooftop piping extraction structure - Google Patents

Abstract

[Problem] To shorten the construction period of a building. [Solution] A rooftop pipe extraction structure 100 includes a box body 20 that has a lower opening 22 that opens downward and a side opening 21 that opens on a side, and is installed on a rooftop slab 10 so as to cover a through hole 11, and a panel material 50 that is detachably attached to the side opening 21 and has an insertion hole 54 through which a pipe 1 is inserted. [Selected Figure] Figure 1

Description

The present invention relates to a rooftop piping extraction structure.

Patent Document 1 discloses a concrete structure, known as a pigeon coop, constructed to prevent rainwater from entering the interior of a building through holes provided in the roof slab to allow piping to be taken out to the outdoors.

Japanese Patent Application Laid-Open No. 8-284414

When constructing a concrete pigeon coop as described in Patent Document 1 on a roof slab, many work steps are required, such as arranging rebar, setting the formwork, pouring the concrete, curing the concrete, and removing the formwork, so it takes time to complete the construction. Furthermore, work such as installing piping in the attic on the floor below cannot begin until construction of the pigeon coop is complete, which can result in a longer construction period for the building.

The present invention aims to provide a rooftop piping extraction structure that can shorten the construction period of a building.

The present invention is a rooftop piping extraction structure for extracting piping installed to the outdoors through a through hole provided in a roof slab, the structure comprising a box body having a downward opening portion that opens downward and a side opening portion that opens on a side surface, the box body being installed on the roof slab so as to cover the through hole, and a panel material that is removably attached to the side opening portion toward the outside of the box body and has an insertion hole formed therein through which the piping is inserted, the box body being formed from a metal plate material, the panel material being formed from an aluminum or aluminum alloy plate material, the insertion hole being formed in advance, and the side opening portion being a through hole formed through the side surface. The present invention also relates to a rooftop piping extraction structure for extracting piping installed to the outdoors through a through hole provided in a rooftop slab, the structure comprising: a box body having a lower opening that opens downward and a side opening that opens on a side surface, the box body being installed on the rooftop slab so as to cover the through hole; and a panel material detachably attached to the side opening and having an insertion hole formed therein through which the piping is inserted, the box body being formed from a metal plate material, the side opening being a through hole formed through the side surface, the inner edge of the side opening being provided with a bent portion bent toward the inside of the box body over its entire circumference, the outer edge of the panel material being provided with a bent portion bent toward the inside of the box body over its entire circumference, the panel material being attached to the side opening by fixing a flange portion formed by bending a tip of the bent portion of the panel material to a mounting portion formed by bending a tip of the bent portion of the side opening, and a gap formed between the bent portion of the side opening and the bent portion of the panel material, the gap facing the flange portion being filled with a sealant. The present invention also relates to a rooftop piping extraction structure for extracting piping installed to the outdoors through a through hole provided in a roof slab, the structure comprising: a box body having a downward opening that opens at the bottom and a side opening that opens at the side, the box body being installed on the roof slab so as to cover the through hole; and a panel material that is detachably attached to the side opening and has an insertion hole through which the piping is inserted, the box body having a folded portion around its entire circumference on the side, the box body being installed on the roof slab by fixing an edge portion formed by folding the tip of the folded portion to a member attached to a rising portion of the roof slab that rises around the through hole, and a sealing material is filled in the gap formed between the rising portion and the folded portion where the edge portion faces.

This invention can shorten the construction period of buildings.

FIG. 2 is a cross-sectional view of a rooftop piping extraction structure according to an embodiment of the present invention. FIG. 2 is a front view of the rooftop piping extraction structure according to the embodiment of the present invention. FIG. 2 is a rear view of the rooftop piping extraction structure according to the embodiment of the present invention. 2 is an enlarged view of a portion indicated by an arrow B in FIG. 1 . FIG. 2 is an enlarged view showing a portion indicated by an arrow C in FIG. 1 . FIG. 2 is an enlarged view of a portion indicated by an arrow D in FIG. 1 . FIG. 2 is an enlarged view of a portion indicated by an arrow E in FIG. 1 . FIG. FIG. 4 is a front view of a first modified example of the rooftop piping extraction structure according to the embodiment of the present invention. FIG. 11 is a front view of a second modified example of the rooftop piping extraction structure according to the embodiment of the present invention. FIG. 13 is an enlarged view of a third modified example of the rooftop piping extraction structure according to the embodiment of the present invention. FIG. 11 is a cross-sectional view of a fourth modified example of the rooftop piping extraction structure according to the embodiment of the

Below, we will explain the rooftop piping extraction structure according to an embodiment of the present invention with reference to the drawings.

As shown in FIG. 1, the rooftop pipe extraction structure 100 according to an embodiment of the present invention is a structure for preventing rainwater from entering the building through a through hole 11 provided in the rooftop slab 10 to pass pipes 1, such as air conditioning pipes and water supply pipes, to the rooftop side of a building, and is used in place of rainproof structures such as reinforced concrete structures called pigeon coops that have traditionally been built on the rooftop slab 10.

Figure 1 is a cross-sectional view of the rooftop piping extraction structure 100, showing a cross-section along line A-A in Figure 2. Figure 2 is a front view of the rooftop piping extraction structure 100, and Figure 3 is a rear view of the rooftop piping extraction structure 100. Figures 4, 5, 6, and 7 are enlarged views of the parts indicated by arrows B, C, D, and E in Figure 1, respectively.

The rooftop pipe extraction structure 100 comprises a box body 20 that is installed on the rooftop slab 10 so as to cover a through hole 11 provided in the rooftop slab 10, and a panel material 50 that is detachably attached to the box body 20 and has an insertion hole 54 through which the pipe 1 is inserted. The pipe 1 that is extracted to the outdoors through the panel material 50 is not limited to a fluid pipe such as an air conditioning pipe or a water supply pipe, but may be any pipe that is routed from the indoors to the rooftop in a tubular form, such as a cable such as a power supply line or a signal line.

The box body 20 is a hollow structure formed into an approximately rectangular parallelepiped shape by aluminum or aluminum alloy plate material, and each side and apex that is the joint of the plate material is welded to ensure airtightness. The material of the box body 20 is not limited to aluminum or aluminum alloy, but from the viewpoint of ensuring airtightness, it is preferable to use a weldable metal, and particularly from the viewpoint of installation workability, it is preferable to use aluminum or aluminum alloy that can reduce the weight of the box body 20. Also, from the viewpoint of processability, it is preferable that the material of the box body 20 is aluminum or aluminum alloy, which is relatively easy to process. Furthermore, if it is necessary to suppress deformation of the box body 20, a galvanized steel plate or a stainless steel plate with high rigidity may be used.

The box body 20 has a side opening 21 that opens on one side and to which the panel material 50 is detachably attached, and a lower opening 22 that opens on the bottom and has an opening area larger than the through hole 11. The external size (three side dimensions) of the box body 20 is appropriately set taking into consideration the size of the side opening 21, i.e., the size of the outer diameter of the pipes 1 held by the panel material 50 and the number of pipes, and the size of the lower opening 22, i.e., the size of the through hole 11, etc.

As shown in FIG. 4, the box body 20 is installed on the upper surface of the rising portion 12 of the roof slab 10, which rises around the through hole 11, via the lower edge portion 27 formed at the lower end. The opening surrounded by the lower edge portion 27 becomes the lower opening 22.

The lower edge 27 is formed by further bending the tip of the first bent portion 26 (bent portion) formed by bending the lower portion of the side surface 25 of the box body 20 inward along the entire circumference, so that it is approximately parallel to the side surface 25 and downward.

On the other hand, one side of the angle bar 14 is fixed to the upper surface of the rising portion 12 via an anchor bolt (not shown) attached to the rising portion 12 along the fixing direction line F1. The lower end edge 27 is fixed to the other side of the angle bar 14 fixed to the rising portion 12 in this way along the fixing direction line F2 with a fastening member such as a screw (not shown), so that the box body 20 is attached to the upper surface of the rising portion 12.

As shown in Figures 2 to 4, a first gap G1 (gap) that can be filled with a sealant is formed around the entire circumference between the first folded portion 26 of the box body 20 fixed to the rising portion 12 in this way and the upper surface of the rising portion 12. Note that in Figures 2 and 3, the sealant is not shown in order to more clearly show the gap into which the sealant is filled.

The first gap G1 between the first bent portion 26 and the upper surface of the rising portion 12 is first filled with the first backup material 61a, and then filled with the first sealing material 62a by caulking. After the first sealing material 62a has dried to a certain extent, the second backup material 61b is filled, and then filled with the second sealing material 62b by caulking.

In this way, by providing a double seal around the entire circumference between the box body 20 and the rising portion 12, it is possible to reliably prevent rainwater from entering through the gap between the box body 20 and the rising portion 12. In addition, because the box body 20 is installed on the upper surface of the rising portion 12, rainwater that has accumulated on the roof slab 10 is less likely to reach the gap between the box body 20 and the rising portion 12. The surface of the roof slab 10, including the rising portion 12, has been previously treated with a waterproofing coating, etc.

The panel material 50 is a member formed into a generally flat plate shape from an aluminum or aluminum alloy plate material, and has a flat plate portion 51, a flange portion 53 formed on the outer edge of the flat plate portion 51, and an insertion hole 54 formed through the flat plate portion 51. The panel material 50 is removably attached to the box body 20 via the flange portion 53.

As shown in FIG. 5, the flange portion 53 is formed by bending the entire outer edge of the flat plate portion 51 toward the inside of the box body 20, and then further bending the tip of the bent portion 52 away from the insertion hole 54 so that it is approximately parallel to the flat plate portion 51.

On the other hand, a ring-shaped mounting portion 29 is formed on the first side surface 25a of the side surface 25 of the box body 20, on which the side opening 21 is provided, to which the flange portion 53 of the panel material 50 is attached. As shown in FIG. 5, the mounting portion 29 is formed by further bending the tip of a second bent portion 28, which is formed by bending the inner edge of the opening formed on the first side surface 25a all around toward the inside of the box body 20, toward the insertion hole 54 so that it is approximately parallel to the first side surface 25a. The opening surrounded by the mounting portion 29 becomes the above-mentioned side opening 21.

In this way, the flange portion 53 is fixed to the mounting portion 29 formed on the first side surface 25a of the box body 20 along the fixing direction line F3 with a screw (not shown), so that the panel material 50 is attached to the box body 20.

A second annular gap G2 that can be filled with a sealing material is formed between the folded portion 52 of the panel material 50 fixed to the box body 20 in this manner and the second folded portion 28 provided on the first side surface 25a, as shown in Figures 2 and 5.

The second gap G2 is first filled with the first backup material 63a, and then filled with the first sealing material 64a by caulking. After the first sealing material 64a has dried to a certain extent, the second backup material 63b is filled, and then filled with the second sealing material 64b by caulking.

In this way, by providing a double seal around the entire periphery between the first side surface 25a of the box body 20 and the panel material 50, it is possible to reliably prevent rainwater from entering through the gap between the box body 20 and the panel material 50.

As shown in FIG. 6, the panel material 50 has a cylindrical portion 55 that is formed in a cylindrical shape from the flat plate portion 51 toward the outside of the box body 20, and the inner peripheral surface of the cylindrical portion 55 forms the above-mentioned insertion hole 54. The cylindrical portion 55 may be fixed to the flat plate portion 51 by welding.

As shown in Figures 2 and 6, a third annular gap G3 that can be filled with a sealing material is formed between the outer peripheral surface of the pipe 1 arranged in the insertion hole 54 and the inner peripheral surface of the cylindrical portion 55.

The third gap G3 is first filled with the first backup material 65a, and then filled with the first sealing material 66a by caulking. After the first sealing material 66a has dried to a certain extent, the second backup material 65b is filled, and then filled with the second sealing material 66b by caulking.

In this way, by providing a double seal around the entire circumference between the panel material 50 and the pipe 1, it is possible to reliably prevent rainwater from entering through the gap between the panel material 50 and the pipe 1.

As shown in FIG. 1, the piping 1 that is taken out to the outdoors through the panel material 50 passes through a through hole 13a formed in the deck plate 13 that constitutes the roof slab 10 and a through hole 11 provided in the roof slab 10, and reaches the inside of the box body 20, and is supported as necessary by a support bracket 17 attached to a sleeve material 16 provided in the through hole 11. Note that the support bracket 17 may be attached to the rising portion 12 via an anchor bolt (not shown) instead of the sleeve material 16.

The gap between the through hole 13a formed in the deck plate 13 and the piping 1 is sealed with a sealing material 18 such as aluminum tape, and a heat insulating material 15 such as glass wool is laid between the through hole 11 provided in the roof slab 10 and the piping 1 to a predetermined thickness.

By providing the insulating material 15 and sealing member 18 appropriately in this manner, the flow of heat and air between the space inside the box body 20 and the indoor space is blocked, which results in suppressing the occurrence of condensation inside the box body 20. The insulating material 15 also functions as a sound absorbing material that prevents the sound of rain caused by rain hitting the box body 20 from resonating indoors. Note that to further prevent the occurrence of condensation inside the box body 20 and the sound of rain from resonating indoors, insulating material or sound absorbing material may be provided to cover the outer surface of the box body 20.

In the rooftop pipe extraction structure 100 shown in FIG. 2, two pipes 1 of approximately the same diameter are extracted to the rooftop, but if there is a change in the diameter or number of pipes 1, the panel material 50 is replaced with one in which the position and size of the cylindrical portion 55 are changed to match the specifications of the changed pipes 1.

Specifically, for example, in the case of a modified example shown in FIG. 8, if there is a change in the number and outer diameter of the pipes 1, it is practically difficult to change the diameter of the holes through which the pipes 1 pass or to increase the number of holes in a conventional pigeon coop made of reinforced concrete, whereas in the rooftop pipe extraction structure 100 configured as described above, it is easy to accommodate this by attaching a panel material 150 having insertion holes 154 corresponding to each pipe 1 to the box body 20.

In addition, in the rooftop pipe removal structure 100 configured as described above, even if the cross-sectional shape of the pipe 1 is approximately rectangular, as in the modified example shown in FIG. 9, it is possible to easily accommodate this by attaching a panel material 250 having an insertion hole 254 formed therein corresponding to the cross-sectional shape of the pipe 1 to the box body 20. Note that multiple pipes (not shown) may be arranged inside the pipe 1 having a cross-sectional shape that is approximately rectangular.

In addition to the side opening 21 and the lower opening 22, the box 20 is provided with an upper opening 31 that opens upward, a lid member 32 that can close the upper opening 31, an opposing opening 41 formed on the second side 25b (opposing side) that faces the first side 25a on which the side opening 21 is formed, and a closing panel material 42 that can close the opposing opening 41, and the lid member 32 and the closing panel material 42 are removably attached to the main body 23 of the box 20.

As shown in Figures 1 and 7, the cover member 32 has a rectangular top plate portion 33, a side surface 34 extending downward from the top plate portion 33, a third bent portion 35 formed by bending the lower portion of the side surface 34 inward along the entire circumference, and a lower edge portion 36 formed by further bending the tip of the third bent portion 35 downward so that it is approximately parallel to the side surface 34.

The lid member 32 thus formed is attached to the upper edge 38 of the side surface 25 of the main body 23 via the lower edge 36. In order to prevent rainwater from accumulating on the top surface of the lid member 32, it is preferable that the top plate portion 33 has a gentle slope with respect to the horizontal plane.

As shown in FIG. 7, the upper edge 38 of the side surface 25 is formed by further bending the tip of a fourth bent portion 37, which is formed by bending the entire upper portion of the side surface 25 of the box body 20 inward, upward so as to be approximately parallel to the side surface 25. The opening surrounded by the upper edge 38 becomes the upper opening 31.

The lower edge 36 of the lid member 32 is fixed to the upper edge 38 formed on the side surface 25 along the fixing direction line F4 with a screw (not shown), so that the lid member 32 closes the upper opening 31.

As shown in Figures 2, 3, and 7, a fourth annular gap G4 that can be filled with a sealing material is formed between the third bent portion 35 of the cover member 32 and the fourth bent portion 37 provided on the side surface 25.

This fourth gap G4 is provided with a double layer of backup materials 67a, 67b and sealing materials 68a, 68b, similar to the gaps G1, G2, and G3 described above. This ensures that rainwater is prevented from entering through the area where the lid member 32 is attached.

The closure panel material 42 has the same shape as the panel material 50 that does not have an insertion hole 54, and is attached to the side surface 25 of the main body portion 23 in the same manner as the panel material 50. For this reason, a detailed description thereof will be omitted.

In addition, the fifth gap G5 (see FIG. 3) formed at the location where the blocking panel material 42 is attached is provided with a double backup material and sealing material, similar to each of the gaps G1, G2, G3, and G4 described above. This makes it possible to reliably prevent rainwater from entering through the location where the blocking panel material 42 is attached.

By providing the upper opening 31 and the opposing opening 41 in the box body 20 in this way, it is possible to improve the workability of tasks performed within the box body 20, such as taking out multiple pipes 1 from indoors through the through hole 11 and the lower opening 22 and sending them to the side opening 21 of the box body 20, sending multiple pipes 1 from outdoors to indoors through the side opening 21, the lower opening 22 and the through hole 11, connecting the pipes 1 to each other within the box body 20, and fixing the pipes 1 to the sleeve material 16 provided in the through hole 11 via the support bracket 17.

In particular, by providing an opposing opening 41 on the second side 25b (opposing side) that faces the first side 25a to which the panel material 50 is attached, the state of the multiple pipes 1 extending from the through hole 11 toward the panel material 50 can be easily visually confirmed through the opposing opening 41.

In this way, the upper opening 31 and the opposing opening 41 function as openings for work and also as openings for inspection. Note that if work or inspection can be performed sufficiently through either the upper opening 31 or the opposing opening 41, the other opening does not need to be provided.

The above embodiment provides the following advantages:

In the rooftop pipe extraction structure 100 configured as described above, the box body 20 installed on the rooftop slab 10 so as to cover the through hole 11 has a lower opening 22 that opens downward and a side opening 21 that opens on the side, and the panel material 50 that is removably attached to the side opening 21 has an insertion hole 54 through which the pipe 1 is inserted.

Therefore, simply by installing the box body 20 with the panel material 50 attached on the roof slab 10 so as to cover the through-hole 11, it is possible to take out the pipes 1 to the roof through the through-hole 11 and prevent rainwater from entering the building through the through-hole 11. This makes it unnecessary to construct a pigeon coop made of reinforced concrete or the like on the roof slab 10 as in the past to prevent rainwater from entering through the through-hole 11, and as a result, the construction period for the building can be shortened.

Specifically, for example, when constructing a pigeon coop made of reinforced concrete or the like on the roof slab 10, the pipes 1 cannot be raised from inside the building until the construction of the pigeon coop is completed, which may delay the interior construction work on the floor below. However, with the rooftop pipe extraction structure 100 configured as described above, for example, a box body 20 can be installed on the roof slab 10 so as to cover the through hole 11, and the box body 20 can be covered with a waterproof sheet or the like to prevent rainwater from entering the building, so that waterproofing and other work on the rooftop side and interior construction work on the indoor side can be carried out simultaneously in parallel.

In addition, since the pipes 1 are taken outside through a panel material 50 that can be attached and detached to the box body 20, even if the number, diameter, or cross-sectional shape of the pipes 1 is changed, the construction period for renovating the building can be shortened and the renovation costs can be reduced by preparing in advance the panel material 50 with insertion holes 54 formed in accordance with the changed pipes 1.

The following modified examples are also within the scope of the present invention, and it is possible to combine the configurations shown in the modified examples with the configurations described in the above embodiments, or to combine the configurations described in the different modified examples below.

In the above embodiment, the box body 20 is installed on the upper surface of the rising portion 12 rising from the roof slab 10. Alternatively, the box body 20 may be installed directly on the roof slab 10. Note that, in order to prevent rainwater that has accumulated on the roof slab 10 from entering the building through the through-hole 11, it is preferable to provide a rising portion 12 that rises around the through-hole 11 and install the box body 20 on top of it.

In the above embodiment, the gap formed between the panel material 50 and the first side surface 25a is sealed by the sealing materials 64a and 64b. Alternatively, the gap formed between the panel material 350 and the first side surface 25a may be sealed by a gasket 365 sandwiched between the box body 20 and the panel material 350, as in the modified example shown in FIG. 10. In this case, the flat plate portion 351 of the panel material 350 is fixed to the first side surface 25a of the box body 20 via the gasket 365 by a fastening member such as a screw (not shown) along the fixing direction line F5, so that the panel material 350 is attached to the box body 20. Note that FIG. 10 shows a cross section corresponding to FIG. 5.

In order to improve the sealing performance, the tip of the bent portion 352 formed by bending the upper portion of the flat portion 351 of the panel material 350 in a direction away from the first side surface 25a may be further bent upward so as to be approximately parallel to the flat portion 351 to form a flange portion 353 that constitutes a sixth gap G6 between the first side surface 25a and which can be filled with a sealing material. The sixth gap G6 thus formed is filled with a sealing material 364a, for example, by caulking from above. In order to reliably prevent the intrusion of rainwater, it is preferable to caulk a sealing material around the fastening members such as screws that fasten the panel material 350 to the box body 20.

In the above embodiment, the cylindrical portion 55, whose inner circumferential surface is the insertion hole 54 of the panel material 50, protrudes from the flat plate portion 51 to an extent that a space is provided for filling the sealing materials 66a, 66b. Alternatively, the cylindrical portion 455, whose inner circumferential surface is the insertion hole 454, may be formed to extend relatively long from the flat plate portion 451 toward the roof slab 10 so that the opening end 455a faces downward, as in the modified example shown in FIG. 11. FIG. 11 shows a cross section equivalent to FIG. 1.

When the open end 455a of the cylindrical portion 455 provided on the panel material 450 faces downward in this way, rainwater is less likely to infiltrate through the cylindrical portion 455, so there is no need to fill the gap between the pipe 1 and the cylindrical portion 455 with a sealant. The cross-sectional shape of the cylindrical portion 455 is not limited to a circle, and may be, for example, substantially rectangular. In this case, it is possible to easily take out multiple pipes 1 from indoors to outdoors through one cylindrical portion 455, i.e., one insertion hole 454, without using a sealant. The cylindrical portion 455 may be welded to the flat portion 451, or may be fixed to the flat portion 451 by a fastening member such as a bolt (not shown).

In the above embodiment, the box body 20 and the panel materials 50, 150, 250, 350, 450 have been described as having portions that are formed by bending (e.g., the bottom edge portion 27 and the flange portion 53, etc.), but these portions may be formed by any processing method as long as they have the shapes shown in the respective figures. For example, they may be formed by directly bending the members, may be formed by drawing, or may be formed by welding the members together.

Although the embodiments of the present invention have been described above, the above embodiments merely show some of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

100: Rooftop piping extraction structure 1: Piping 10: Rooftop slab 11: Through hole 12: Rising portion 20: Box body 21: Side opening 22: Lower opening 25a: First side (side)
25b: Second side surface (opposing side surface)
26: First bent portion (bent portion)
31: Upper opening 32: Lid member 41: Opposing opening 42: Closing panel material 50, 150, 250, 350, 450: Panel material 54, 154, 254, 454: Through hole 62a: First seal material (seal material)
62b: Second seal material (seal material)
G1: First gap (gap)

Claims (6)

A rooftop piping extraction structure for extracting piping installed outdoors through a through hole provided in a rooftop slab,
A box body having a lower opening portion that opens downward and a side opening portion that opens on a side surface, the box body being installed on the roof slab so as to cover the through hole;
a panel material that is detachably attached to the side opening toward the outside of the box body and has an insertion hole through which the piping is inserted;
The box body is formed of a metal plate material,
the panel material is formed of an aluminum or aluminum alloy plate material, and the insertion hole is formed in advance;
The side opening is a through hole formed penetrating the side surface of the rooftop piping extraction structure. A rooftop piping extraction structure for extracting piping installed outdoors through a through hole provided in a rooftop slab,
A box body having a lower opening portion that opens downward and a side opening portion that opens on a side surface, the box body being installed on the roof slab so as to cover the through hole;
a panel material that is detachably attached to the side opening and has an insertion hole through which the piping is inserted;
The box body is formed of a metal plate material,
The side opening is a through hole formed through the side surface,
A bent portion bent toward the inside of the box body is provided around the entire periphery of the inner edge of the side opening,
The panel material has an outer edge provided with a bent portion bent toward the inside of the box body along the entire periphery,
the panel material is attached to the side opening by fixing a flange portion formed by folding a tip end of the folding portion of the panel material to a mounting portion formed by folding a tip end of the folding portion of the side opening,
A rooftop piping extraction structure in which a gap is formed between the bent portion of the side opening and the bent portion of the panel material, and the gap facing the flange portion is filled with a sealing material. A rooftop piping extraction structure for extracting piping installed outdoors through a through hole provided in a rooftop slab,
A box body having a lower opening portion that opens downward and a side opening portion that opens on a side surface, the box body being installed on the roof slab so as to cover the through hole;
a panel material that is detachably attached to the side opening and has an insertion hole through which the piping is inserted;
A bent portion is provided around the entire periphery of the side surface of the box,
The box body is installed on the roof slab by fixing an edge formed by bending the tip of the bending portion to a member attached to a rising portion of the roof slab that rises around the through hole,
A rooftop piping extraction structure in which a gap is formed between the rising portion and the bent portion, and the gap facing the edge portion is filled with a sealant. The box body is
An upper opening portion that opens at an upper portion;
A cover member capable of closing the upper opening,
The rooftop piping extraction structure according to any one of claims 1 to 3. The box body is
an opposing opening formed in an opposing side surface facing the side surface in which the side opening is formed;
Further comprising a closure panel material capable of closing the opposing opening.
The rooftop piping extraction structure according to any one of claims 1 to 3. The box body is formed of a metal plate material.
The rooftop piping extraction structure according to claim 3.

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