JP7603436B2 - Roof structure - Google Patents

Description

The present invention relates to a roof structure.

A roof structure having multiple pillars, multiple girders (below-water girders, above-water girders, a pair of side girders) attached to the pillars, and roof surface materials attached to these girders has been known (see, for example, Patent Document 1). This roof structure has a ceiling material that covers the lower part of the roof surface material in a rectangular area surrounded by the girders. The ceiling material forms the ceiling surface of the roof structure, and multiple ceiling panels formed in elongated plate shapes are arranged between the below-water girders and the above-water girders and connected to each other to form the ceiling surface. The ceiling panel located furthest below the water has its below-water side engaged with a mounting material fixed to the below-water girders, and its above-water side is fixed to a support material provided between the below-water girders and the above-water girders with screws that enter from below. In addition, the other ceiling panels have their below-water side ends engaged with the ceiling panel adjacent to the below-water side, and their above-water side ends fixed to the support material with screws that enter from below.

JP 2020-159129 A

In the above-mentioned conventional roof structure, the underwater end of each ceiling panel is engaged with the mounting material or ceiling panel adjacent to the underwater side, and the abovewater end is fixed to the support material with a screw that enters from below, connecting multiple ceiling panels from the underwater side to the abovewater side. For this reason, the screw that fixes the ceiling panel furthest above the water to the support material is placed in close proximity to the above-water girders. In some cases, the above-water side of the roof structure is installed along the exterior wall of the building, or a lattice or the like is installed under the above-water girders, and if the screw that fixes the ceiling panel to the support material is placed in close proximity to the above-water girders or the exterior wall of the building, the exterior wall or lattice can interfere with the work of turning the screw, making it difficult to tighten the screw straight or firmly, resulting in problems with poor workability.

The present invention was made in consideration of these problems, and its purpose is to provide a roof structure with excellent workability.

In order to achieve this purpose, the roof structure of the present invention comprises a roof body, a girder provided on the belowwater side of the roof body, an above-water engaging member fixed to an above-water support member supporting the above-water side of the roof body by a screw that enters in a prospective direction, a base member spanned between the above-water support member and the girder, and a ceiling member covering the below of the roof body, wherein the above-water end of the ceiling member is engaged with the above-water engaging member and the below-water end is fixed to the base member by a screw that enters from below.
Other features of the present invention will become apparent from the following detailed description of the present invention and the accompanying drawings.

The present invention makes it possible to provide a roof structure with excellent workability.

1 is a schematic diagram of a wall-mounted roof unit which is an example of an outdoor structure according to the present invention. A vertical cross-sectional view of a wall-mounted roof unit. A diagram showing how to place the ceiling panel on the angle iron. FIG. 4 is a cross-sectional view showing a water-based engaging member. FIG. 2 is a cross-sectional view showing a ceiling panel. FIG. 6( a ) is a plan view of the ceiling panel to be placed furthest below the water, and FIG. 6( b ) is a cross-sectional view of the ceiling panel to be placed furthest below the water. A cross-sectional view showing a method of fixing the underwater side of a ceiling panel to be placed furthest below the water. Figure 8(a) is a diagram showing a method of installing an above-water engagement member, Figure 8(b) is a diagram showing a method of installing a ceiling panel to be placed furthest above the water, Figure 8(c) is a diagram showing a method of installing a ceiling panel to be placed second from the below-water side, and Figure 8(d) is a diagram showing a method of installing a ceiling panel to be placed third from the below-water side. FIG. 13 is a schematic diagram of another example of an outdoor construction, an independently constructed roof unit. FIG. 2 is a longitudinal section of an independently constructed roof unit.

Hereinafter, a roof structure according to one embodiment of the present invention will be described with reference to the drawings.
In this embodiment, as an example of a roof structure, a wall-mounted roof unit 1 that is attached to a building 2 and has a roof main body 3, one end of which is fixed to the exterior wall 2a of the building 2 and the other end of which is supported by a pillar 4, as shown in Figure 1, will be described as an example.

In the following explanation, when the constructed roof unit 1 is viewed toward the building 2, the direction that is up and down is referred to as the up-down direction, the direction that is left and right and runs along the exterior wall 2a of the building 2 is referred to as the left-right direction, and the direction toward the building 2 side and the side opposite the building is referred to as the prospective direction. Even when each part of the roof unit 1, or each component that constitutes the roof unit 1 is in a separate state, the directions are specified and explained in terms of the up-down, left-right, and prospective directions in the constructed roof unit 1 state.

As shown in Figures 1 and 2, the roof unit 1 of this embodiment has a roof body 3 with one end fixed to the exterior wall 2a of the building 2 and a slope that gradually decreases in height in the direction away from the building 2, a girder 5 provided on the underwater side of the roof body 3, two pillars 4 erected from the ground and connected to both ends of the girder 5, side girders 6 that are stretched between the upper ends of each pillar 4 and the building 2 and connected to the roof body 3, and a ceiling structure 7 that covers the area formed by the girder 5 and side girders 6 joined by the pillars 4 and the exterior wall 2a below the roof body 3.

The roof body 3 has a rafter hanger 3a fixed to the exterior wall 2a of the building 2, a number of rafters 3b that are spaced apart in the width direction and span between the rafter hanger 3a and the beam 5, and a roof surface material 3c that spans between adjacent rafters 3b. In this embodiment, the exterior wall 2a of the building 2 corresponds to the above-water support member that supports the above-water side of the roof body 3.

The girder material 5 has a girder body 50, the ends of which are butted against the sides of the supports and fixed, and a gutter 51, which is fixed to the above-water side of the girder body 50. The girder body 50 and the gutter 51 are formed, for example, from metal (e.g., aluminum alloy) shaped members formed by extrusion molding, and as shown in FIG. 2, each has a hollow portion 50a, 51a that penetrates in the longitudinal direction and has a rectangular cross section. The girder body 50 has a nearly rectangular cross section, and the gutter 51 is attached along the longitudinal direction to the lower part of the surface 50b of the girder body 50 that faces above the water.

The gutter 51 has a gutter fixing part 51b fixed to face the above-water surface 50b of the girder body 50, a flat lower surface part 51c extending above the water from the lower end of the gutter fixing part 51b, a gutter outer wall part 51d extending upward from the above-water end of the lower surface part 51c, a flat bottom surface part 51e facing the upper part of the lower surface part 51c with a gap therebetween, a groove lower wall part 51f connecting the below-water end of the bottom surface part 51e to the gutter fixing part 51b with an inclined surface, and a groove upper wall part 51g connecting the above-water end of the bottom surface part 51e to the gutter outer wall part 51d with an inclined surface. The bottom surface part 51e, the groove lower wall part 51f, and the groove upper wall part 51g form a concave drainage groove 51h that opens upward from the bottom surface part 51e as the bottom. A hollow portion 51a is provided between the bottom surface portion 51e, the groove lower wall portion 51f, and the groove upper wall portion 51g and the gutter fixing portion 51b, the bottom surface portion 51c, and the gutter outer wall portion 51d.

The underwater ends of the rafters 3b of the roof body 3 and the roof surface material 3c are connected to the gutter outer wall portion 51d so as to cover the upper part of the gutter outer wall portion 51d and extend below the waterline further than the gutter outer wall portion 51d.

The ceiling structure 7 has above-water retaining members 70 attached to the exterior wall 2a, a base member 71 that spans between the exterior wall 2a and the girder 5, a ceiling member 72 that covers the area between the above-water retaining members 70 and the girder body 50 from below, and angle members 73 (Figure 3) that are attached to the left and right side girders 6, respectively. The above-water retaining members 70 and the base member 71 are shaped members made of metal (e.g., aluminum alloy) formed by extrusion molding.

The above-water retaining member 70 has approximately the same length as the rafter hanger 3a, and is positioned approximately parallel to the lower part of the rafter hanger 3a and fixed to the outer wall 2a. As shown in FIG. 4, the above-water retaining member 70 has a hollow portion 70a that penetrates in the longitudinal direction, and is provided with an above-water facing wall portion 70b that faces the outer wall 2a on the above-water side of the hollow portion 70a, an upper fixing portion 70c that protrudes above the hollow portion 70a, a base material fixing portion 70d that protrudes below the water side from the hollow portion 70a, and a ceiling member retaining portion 70e.

The upper fixing part 70c is connected to the above-water facing wall part 70b, protrudes upward, and is arranged to face the exterior wall 2a. The upper and lower ends of the above-water facing wall part 70b and the upper end of the upper fixing part 70c are provided with exterior wall abutment pieces 70f that protrude toward the exterior wall 2a and abut against the exterior wall 2a. The above-water engaging member 70 is fixed to the upper fixing part 70c, which faces the rafter hanger 3a in a state facing it in a state almost parallel to the exterior wall abutment piece 70f abutting the exterior wall 2a, with a screw 7a that enters from the below-water side to the above-water side in the prospective direction.

The upper surface portion 70g that forms the upper surface of the hollow portion 70a is horizontal when the above-water engaging member 70 is attached to the exterior wall 2a, and the base material fixing portion 70d is connected to the upper surface portion 70g and extends horizontally below the water. The lower surface forming portion 70h that forms the lower surface of the hollow portion 70a has a step such that the below-water side is higher than the above-water side. In other words, the underside of the above-water engaging member 70 has a recess 70i that is recessed upward.

The ceiling member locking portion 70e is connected to the underwater side (recess side) end of the undersurface forming portion 70h and extends horizontally below the water. The base material fixing portion 70d and the ceiling member locking portion 70e protrude below the water beyond the hollow portion 70a, with the base material fixing portion 70d protruding longer than the ceiling member locking portion 70e.

The base member 71 is a metal (e.g., aluminum alloy) shaped member formed by extrusion, and as shown in FIG. 3, has a rectangular cross section and is a square pipe shape that penetrates in the longitudinal direction. As shown in FIG. 2, the base member 71 is placed on the flat connecting member 8 that protrudes above the water side from the gutter outer wall portion 51d of the gutter 51 and is fixed to the underside portion 51c, and the base material fixing portion 70d of the above-water engaging member 70, and is screwed to the connecting member 8 and the base material fixing portion 70d. A plurality of base members 71 are provided between the left and right side girders 6, and are arranged at appropriate intervals from each other in the left-right direction.

The angle irons 73 are attached to the lower ends of the left and right side beams 6. The angle irons 73 are arranged such that one of the two plate parts 73a, 73b, each of which has an L-shaped cross section, is fixed to the opposing surfaces of the left and right side beams 6, and the other plate part 73b is positioned at the lower end of the fixed plate part 73a, and protrudes to the opposing side. The left and right ends of the ceiling member 72 are placed on top of each protruding plate part 73b.

The ceiling member 72 is composed of multiple ceiling panels 74, 75 that are long and plate-like in the width direction. The multiple ceiling panels 74, 75 are arranged in the prospective direction, and two adjacent ceiling panels 74, 75 are configured so that the above-water ends of the ceiling panels 74, 75 located below the water are engaged with the below-water ends of the ceiling panels 74, 75 located above the water.

As shown in Figures 5 and 6, the multiple ceiling panels 74, 75 have panel surface portions 74a, 75a that are almost entirely flat. Of the multiple ceiling panels 74, 75, all ceiling panels 74 except for the ceiling panel 75 that is located furthest below the waterline are provided with belowwater extension pieces 74b that are connected to the belowwater end of the panel surface portion 74a and extend below the waterline to a position higher than the panel surface portion 74a. There is a step between the panel surface portion 74a and the belowwater extension piece 74b, and the underwater lower side of the ceiling panel 74 is provided with a recess 74c that is recessed upward.

The underwater extension piece 74b has a central wall 74d that rises upward from near the center in the projection direction, and a panel extension 74e that extends below the water from the upper end of the central wall 74d. The recess 74c of the ceiling panel 74 has the same shape as the recess 70i of the above-water engagement member 70, and the extension amount of the underwater extension piece 74b toward the central wall 74d and the extension amount of the panel extension 74e are formed to be the same as the protrusion amount from the hollow portion 70a of the base material fixing portion 70d and the ceiling member engagement portion 70e.

The above-water end of the panel surface portion 74a of each ceiling panel 74, 75 is provided with an insertion portion 74f, 75b that rises upward and fits into the recess 74c of the adjacent ceiling panel 74 on the above-water side or the recess 70i of the above-water engagement member 70. The insertion portion 74f, 75b fits into the recess 74c of the ceiling panel 74 or the recess 70i of the above-water engagement member 70, and is formed so that when the upper end of the insertion portion 74f, 75b abuts against the recess 74c, 70i, the lower surface of the panel surface portion 74a, 75a is at the same height as the lower surface of the lower surface forming portion 70h.

The above-water side of the panel surface portion 74a, 75a of each ceiling panel 74, 75 is provided with above-water wall portions 74g, 75c that extend upward below the waterline further than the insertion portions 74f, 75b, and the upper ends of the above-water wall portions 74g, 75c are provided with engagement pieces 74h, 75d that extend above the waterline and engage with the adjacent ceiling panel 74 or above-water engagement member 70 on the above-water side.

The above-water side of each of the ceiling panels 74, 75 is engaged by placing the engagement pieces 74h, 75d on the below-water extension piece 74b of the adjacent ceiling panel 74 above the water or the ceiling member engagement part 70e of the above-water engagement member 70, and the insertion parts 74f, 75b enter the recesses 74c of the ceiling panel 74 or the recesses 70i of the above-water engagement member 70, with their upper ends abutting the recesses 74c, 70i. With the above-water side of the ceiling panel 74 engaged, the panel extension part 74e abuts the underside of the base member 71, and the ceiling panel 74 is fixed to the base member 71 by the screws 7b that enter from below.

The ceiling panel 75, which is positioned furthest below the water, is provided with an underwater extension piece 75e that extends upward from the underwater end of the panel surface portion 75a. The upper end of the underwater extension piece 75e is provided with a panel locking piece 75f that protrudes slightly below the water. In addition, the ceiling panel 75 is provided with a hole 75g in the panel surface portion 75a through which the vertical gutter 11, which is provided from the bottom surface portion 51e of the gutter 51, passes.

7, the ceiling panel 75 is fixed by an engaging and fixing member 9 with its above-water side engaged with the adjacent ceiling panel 74. The engaging and fixing member 9 has an engaging portion 9a that engages with the panel engaging piece 75f, and is fixed by a screw 7c that enters the lower surface 51c of the gutter 51 from below. The engaging and fixing member 9 is covered by a cover material 10 that is attached from below.
The ceiling structure 7 is attached to the exterior wall 2 a of the building 2 with the roof body 3 supported by the pillars 4 together with the girders 5 and side girders 6 .

First, as shown in FIG. 8(a), the above-water retaining member 70 is fixed to the exterior wall 2a with a screw 7a that goes in the forward direction, and the connecting member 8 is attached to the underside 51c of the gutter 51. In addition, angle members 73 are attached to the left and right side beams 6.

Next, the base member 71 is placed on the connecting member 8 and the base material fixing portion 70d of the water-surface engaging member 70, and the base member 71 is screwed to the connecting member 8 and the base material fixing portion 70d.

Next, the ceiling panel 74 is positioned from below above the angle irons 73 on both sides and below the water surface of the above-water engaging member 70, and then the ceiling panel 74 is moved toward the above-water engaging member 70. At this time, the ceiling panel 74 is tilted so that the left end is higher, for example as shown in FIG. 3, and the higher end is moved above the angle irons 73 first while being positioned to the left of the mounting position in the left-right direction, and then the right end is pushed up to a position higher than the angle irons, and then returned to the mounting position and positioned on the plate portion 73b of the angle iron 73.

The above-water side of the ceiling panel 74 is engaged when the engagement piece 74h of the ceiling panel 74 is placed on the ceiling member engagement portion 70e of the above-water engagement member 70, the insertion portion 74f enters the recess 70i of the above-water engagement member 70, and its upper end abuts against the recess 70i. Therefore, the ceiling panel 74 moves at least the amount by which the engagement piece 74h extends above the water from the above-water wall portion 74g.

Next, the panel extension 74e of the ceiling panel 74 is abutted against the underside of the base member 71, and the panel extension 74e is fixed to the base member 71 by the screws 7b that enter from below.
Next, a new ceiling panel (hereinafter referred to as a new ceiling panel) 74 is attached to the underwater side of the already installed ceiling panel (hereinafter referred to as an existing ceiling panel) 74.

Specifically, the new ceiling panel 74 is placed from below, above the angle members 73 on both sides and below the waterline of the existing ceiling panel 74, and then the new ceiling panel 74 is moved toward the existing ceiling panel 74. At this time, as shown in FIG. 8(b), the engagement piece 74h of the new ceiling panel 74 is placed on the belowwater extension piece 74b of the existing ceiling panel 74, and the insertion part 74f enters the recess 74c of the existing ceiling panel 74, and with its upper end abutting the recess 74c, the abovewater side of the ceiling panel 74 is engaged.

Next, as shown in FIG. 8(c), the panel extension 74e of the ceiling panel 74 is abutted against the underside of the base member 71, and the ceiling panel 74 is fixed to the base member 71 by screws 7b that enter from below. In this way, as shown in FIG. 8(d), the new ceiling panel 74 is engaged with the existing ceiling panel 74 from above the water and fixed to the base member 71.

Then, as shown in FIG. 7, the ceiling panel 75 furthest below the water is positioned above the angle members 73 on both sides from below, below the water than the existing ceiling panel 74, and then the ceiling panel 75 is moved toward the existing ceiling panel 74. At this time, the engaging piece 75d of the ceiling panel 75 is placed on the belowwater extension piece 74b of the existing ceiling panel 74, and the insertion part 75b enters the recess 74c of the existing ceiling panel 74, and with its upper end abutting the recess 74c, the abovewater side of the ceiling panel 75 is engaged.

Next, the upper end of the underwater extension piece 75e of the ceiling panel 75 is abutted against the base member 71, and the engaging and fixing member 9 is engaged with the panel locking piece 75f and fixed to the underside portion 51c of the gutter 51 with a screw 7c that enters from below.

Finally, the cover material 10 is engaged with the engaging and fixing member 9 from below and fixed to the underside 51c of the gutter 51 with a screw 7d that enters from below, and the cap 10a is engaged with the cover material 10 so as to cover the screw 7d.

According to the roof unit 1 of this embodiment, the above-water fastening member 70 to which the most above-water ceiling panel 74 is fastened is fixed by a screw 7a that enters from the below-water side toward the above-water side, so even if the above-water fastening member 70 supporting the above-water side of the roof body 3 is fixed to the exterior wall 2a, the exterior wall 2a does not get in the way of fastening the above-water fastening member 70. In addition, the most above-water ceiling panel 74 has its above-water end engaged with the above-water fastening member 70 and its below-water end fixed to the base member 71 by a screw 7b that enters from below, so the position at which the most above-water ceiling panel 74 is fixed to the base member 71 can be located farther away from the exterior wall 2a. Therefore, when tightening the screws 7b that secure the ceiling panel 74 furthest above the water, the sash frame 2b and other elements attached to the exterior wall 2a do not interfere with the screw fastening work, making it easier to install the ceiling panel 74 furthest above the water, and providing a roof unit 1 with excellent workability.

In addition, because the ceiling member 72 is composed of multiple ceiling panels 74, 75 arranged side by side in the prospective direction, each ceiling panel 74, 75 is smaller than when the entire area under the roof body 3 is covered with a single ceiling member. This makes it easier to handle the individual ceiling panels 74, 75, and provides excellent workability. In addition, because the number of ceiling panels 74 can be adjusted to match the size of the roof body 3, a highly versatile roof unit 1 can be provided.

In addition, the underside of the roof body 3 can be covered simply by engaging the above-water end of the ceiling panel 74 located below the waterline with the below-water end of the ceiling panel 74 located above the waterline, and fixing the below-water end of the ceiling panel 74 located below the waterline with screws 7b that enter the base member 71 from below.

A vertical gutter 11 must be provided on the bottom surface portion 51e and the lower surface portion 51c that form the bottom of the drainage groove 51h of the gutter 51 to drain the water that has entered the drainage groove 51h, and a hole 75g through which the vertical gutter 11 penetrates must also be provided on the ceiling panel 75 located below the gutter 51, which is located on the most downstream side of the water. In this case, for example, in a conventional structure in which multiple ceiling panels 74 are installed sequentially from the downstream side, the member corresponding to the above-water engaging member 70 to which the first ceiling panel 74 to be installed is engaged is arranged on the downstream side and located below the gutter 51, so the processing to form the hole 75g through which the vertical gutter 11 penetrates is complicated. On the other hand, in the roof unit 1 of this embodiment, the flat panel surface portion 75a of the drainage groove bottom surface portion 51e of the ceiling panel 75 is located below the bottom surface portion 51e that forms the bottom of the drainage groove 51h, so that the hole 75g through which the vertical gutter 11 penetrates can be easily formed. The ceiling member may be composed of a single ceiling panel. In this case, one of the ceiling panels that make up the ceiling member becomes the ceiling panel that is located below the gutter, and a hole through which the vertical gutter passes is formed in the panel surface of the ceiling panel.

The ceiling panel 75 furthest below the waterline does not have a panel extension, unlike the other ceiling panels 74, and is fixed by engaging an engaging and fixing member 9 having an engaging portion 9a that engages a panel engaging piece 75f that protrudes slightly below the waterline. Therefore, when the ceiling panel 75 is attached, the panel surface portion 75a of the ceiling panel 75 can be positioned closer to the girder body 50. This expands the area where the panel surface portion 75a of the ceiling panel 75 faces the bottom surface portion 51e of the gutter 51, and a hole 75g through which the vertical gutter 11 provided from the bottom surface portion 51e of the gutter 51 penetrates can be provided in the flat panel surface portion 75a of the ceiling panel 75.

In the above embodiment, the roof structure is described as a wall-mounted roof unit 1 attached to the building 2, which has a roof body 3 whose one end is fixed to the exterior wall 2a of the building 2 and whose other end is supported by a support 4, but this is not limited to this. For example, as shown in Figures 9 and 10, it may be a roof unit 1a that is supported by four supports 4 and constructed independently. More specifically, it may be a roof unit 1a that has four supports 4, two girders 5, 5a and two side girders 6 attached between the upper ends of the supports 4, and a roof body 3 attached to these girders 5, 5a and side girders 6. In this case, for example, the above-water engaging member 70 is fixed to the girder 5a arranged on the above-water side by a screw 7a that enters in the expected direction, and the ceiling panels 74, 75 are attached sequentially from the above-water side to the below-water side. In this type of roof unit 1a, even if a lattice or the like is provided under the girder 5a on the above-water side, when the above-water fastening member 70 that supports the above-water side of the roof body 3 is fixed to the girder 5a on the above-water side, the lattice or the like does not get in the way of fixing the above-water fastening member 70, making construction easy.

The above-mentioned embodiment is for the purpose of facilitating understanding of the present invention, and is not intended to limit the present invention. The present invention can be modified or improved without departing from the spirit of the present invention, and it goes without saying that the present invention includes equivalents thereof.
The present embodiment includes at least the following inventions.

A roof structure comprising a roof body, a girder member provided on the underwater side of the roof body, an above-water fastening member fixed to an above-water support member supporting the above-water side of the roof body with a screw that enters in the prospective direction, a base member that is spanned between the above-water support member and the girder member, and a ceiling member that covers the underside of the roof body, the above-water end of the ceiling member being fastened to the above-water fastening member, and the below-water end being fixed to the base member with a screw that enters from below.

With this type of roof structure, the above-water fastening members to which the ceiling members are fastened are fixed by screws that enter from below the water side toward above the water side, so even if the part to which the above-water support members that support the above-water side of the roof body are fixed is a girder or exterior wall with a lattice, it does not interfere with fastening with the screws. In addition, since the above-water end of the ceiling member is fastened to the above-water fastening member and the below-water end is fixed to the base member by a screw that enters from below, it is possible to fix the ceiling member to the base member at a position farther away from the part to which the above-water fastening member is fixed. Therefore, since there are no obstacles around that can get in the way when tightening the screws that fasten the ceiling member, it is possible to provide a roof structure that is easy to install and has excellent workability.

In such a roof structure, the ceiling member is characterized in that it is composed of a plurality of ceiling panels arranged side by side in the prospective direction.
According to this roof structure, the ceiling member is composed of multiple ceiling panels, so each ceiling panel is smaller than a ceiling member that covers the entire area under the roof body, making it easier to handle and easier to install. In addition, the number of ceiling panels can be adjusted according to the size of the roof body, so a highly versatile roof structure can be provided.

In this roof structure, two adjacent ceiling panels among the plurality of ceiling panels are characterized in that the above-water side of the ceiling panel located below the water surface is engaged with the below-water side of the ceiling panel located above the water surface, and the below-water end of the ceiling panel located below the water surface is fixed by a screw that enters the base member from below.

With this type of roof structure, the above-water side of each of the multiple ceiling panels is simply engaged with the below-water side of the ceiling panel located above the water, and the below-water end of the ceiling panel located below the water is fixed with a screw that penetrates the base material from below, making it possible to easily cover the underside of the roof body with the ceiling material.

In this roof structure, the girder is provided with a gutter that forms a drainage channel with a flat bottom, and the ceiling panel that is positioned furthest below the water among the plurality of ceiling panels is positioned below the gutter, and the flat surface of the ceiling panel is located below the bottom.

A vertical gutter must be provided at the bottom of the gutter drain to drain any water that has entered the drain, and if a ceiling panel is present below the gutter, a hole must be provided in the ceiling panel through which the vertical gutter can pass. In this case, the ceiling panel that is placed below the gutter and below the bottom of the drain drain, and is placed furthest below the water, has a flat surface that is located below the bottom of the drain drain, so it is easy to form a hole through which the vertical gutter can pass.

This roof structure is characterized in that the above-water support member is fixed to the exterior wall of a building adjacent to the roof structure.

With this type of roof structure, even if the area where the above-water support member is fixed is the exterior wall of a building that is attached to the roof structure, the position where the ceiling member is fixed to the base member is located farther away from the exterior wall, so the exterior wall does not get in the way when tightening the screws that secure the ceiling member. This makes it possible to provide a roof structure that is easy to attach the ceiling member and has excellent workability.

1 Roof unit, 1a Roof unit, 2 Building, 2a Outer wall, 3 Roof body,
5 girder, 5a girder above the water, 7a screw entering in the prospective direction,
7b screw entering from below, 51 groove, 51c lower surface portion, 51e bottom surface portion,
51h drainage groove, 70 water-mounted retaining member, 71 base member, 72 ceiling member,
74 Ceiling panel, 75 Ceiling panel, 75a Panel surface portion,

Claims (2)

The roof body,
A girder material provided on the underwater side of the roof body;
An above-water engaging member is fixed to an above- water side member, which is either an outer wall of a building supporting the above-water side of the roof body or a girder member arranged on the above-water side of the roof body , by a screw that enters in the prospective direction;
A base member that is bridged between the above- water member and a girder provided on the below-water side;
A ceiling member covering the lower part of the roof body;
A roof structure having :
The ceiling member is composed of a plurality of ceiling panels arranged side by side in a prospective direction,
When, of the two adjacent ceiling panels in the plurality of ceiling panels , the ceiling panel on the underwater side is not the ceiling panel disposed furthest underwater,
The above-water side of the ceiling panel located on the underwater side is engaged with the below-water side of the ceiling panel located on the above-water side, and the underwater end of the ceiling panel located on the underwater side is fixed by a screw that enters the base member from below, and
The screw that enters the base member from below is covered by an above-water end of the ceiling panel that is located on the below-water side of the ceiling panel that is fixed by the screw that enters the base member from below ,
The girder provided on the downstream side of the water is provided with a gutter forming a drainage groove having a flat bottom,
A roof structure characterized in that the above-water end of the ceiling panel positioned furthest above the water is engaged with the above-water engaging member, and the below-water end of the ceiling panel positioned furthest below the water is fixed to the gutter by a screw entering from below. 2. The roof structure of claim 1 ,
A roof structure characterized in that the ceiling panel among the plurality of ceiling panels that is positioned furthest below the water is positioned below the gutter, and a flat surface of the ceiling panel is located below the bottom.

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