Method of constructing roof body

Abstract

To facilitate work.SOLUTION: In the construction method, a plurality of roof materials 41 having an upper fixing piece part 41c on a hanging side wall part 41b and a lower fixing piece part 41g on a receiving side wall part 41f are juxtaposed along the longitudinal direction of a main house 30, and a screw member S2 is mounted to attach the roof materials 41 to the lower surface of the main house 30 through the upper fixing piece part 41c and the lower fixing piece part 41g, thereby constructing a roof body. The method includes a step of attaching the upper fixing piece portion 41c of the first roofing material 41 to the lower surface of the main house 30 by the screw member S2, a step of inserting the upper fixing piece portion 41c of the second roofing material 41 into a gap generated between the lower fixing piece portion 41g of the first roofing material 41 and the upper fixing piece portion 41c of the second roofing material 41, and a step of attaching the upper fixing piece portion 41c of the first roofing material 41 to the lower surface of the main house 30 by the screw member S2 in a state where the lower fixing piece portion 41g of the first roofing material 41 and the upper fixing piece portion 41c of the second roofing material 41 are vertically overlapped with each other.SELECTED DRAWING: Figure 12

Description

[Technical Field]

[0001] The present invention relates to a method for constructing a roof structure formed by arranging a plurality of roof materials side by side on the underside of a roof support material. [Background technology]

[0002] Some outdoor structures, such as carports, have a roof structure constructed by arranging multiple roofing materials side by side on the underside of a roof support material known as a joist or purlin. The roofing materials are configured in a long shape with fixing pieces on both side edges of each. The roof structure is interconnected by overlapping the fixing pieces of adjacent roofing materials. More specifically, a first roofing material is attached to the roof support material by attaching a fixing device to the fixing piece provided on one side edge of the first roofing material. Next, a lower fixing piece provided on one side edge of the second roofing material is overlapped on the underside of an upper fixing piece provided on the other side edge of the first roofing material. Then, fixing devices are attached to the overlapping lower and upper fixing pieces to connect the first and second roofing materials. This process is then repeated to construct a roof structure in which multiple roofing materials are arranged side by side on the underside of the roof support material (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-173303 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the outdoor structure described above, the roofing material must be supported by hand, the lower fixing piece must be positioned over the upper fixing piece of the previously attached roofing material, and the fixing device must be attached while maintaining this position. Considering workability, there is room for further improvement. In particular, if the fixing device is attached from above, there is a concern that the above-mentioned work will become even more complicated.

[0005] In view of the above circumstances, an object of the present invention is to provide a roof construction method that can facilitate the work. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the roof body construction method of the present invention is a roof body construction method in which a plurality of roof materials each having a first fixed piece portion on one side edge of a base wall portion and a second fixed piece portion on the other side edge of the base wall portion are arranged in parallel along the length of a roof support material, and the roof materials are attached to the underside of the roof support material via the first fixed piece portion and the second fixed piece portion using a fixing device, and is characterized in that it includes the steps of attaching the first fixed piece portion of a first roof material to the underside of the roof support material using a fixing device, inserting and positioning the first fixed piece portion of a second roof material into the gap created between the second fixed piece portion of the first roof material and the roof support material, and attaching the second fixed piece portion of the first roof material and the first fixed piece portion of the second roof material to the underside of the roof support material using a fixing device so that they are vertically overlapping. [Effects of the Invention]

[0007] According to the present invention, when installing a second roofing material, the first fixing piece portion of the second roofing material is inserted into the gap between the second fixing piece portion of the first roofing material installed earlier and the roof support material, so that one side edge portion of the second roofing material can be supported by the first roofing material, which makes it possible to facilitate the work of attaching a fixing device to the second roofing material. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of an outdoor structure to which a roof construction method according to an embodiment of the present invention is applied. [Figure 2] FIG. 2 is a front view of the outdoor structure shown in FIG. [Figure 3] FIG. 2 is a side view of the outdoor structure shown in FIG. [Figure 4]FIG. 2 is a plan view of the outdoor structure shown in FIG. [Figure 5] FIG. 2 is an enlarged plan view of a main part of the outdoor structure shown in FIG. [Figure 6] FIG. 2 is a vertical cross-sectional side view of the main parts of the beams, purlins, and roofing material of the outdoor structure shown in FIG. [Figure 7] This shows conceptually the main building and roofing materials of the outdoor structure shown in Figure 1, with (a) being an exploded side view and (b) being a side view. [Figure 8] This shows the state in which roofing material is being attached to the main building of the outdoor structure shown in Figure 1, where (a) is a side view of the main building with the end roofing material attached, just before the front end roofing material is attached, and (b) is a front view of the main building, just before the roofing material is attached. [Figure 9] This is a side view of the main part of the state shown in Figure 8(a) in which a screw member has been screwed into the lower fixing piece portion of the front end roof material via the roof support piece portion of the main roof and the upper fixing piece portion of the end roof material. [Figure 10] This is a side view of the main parts of the state shown in Figure 9, where the upper fixing piece of the roof material has been inserted into the gap between the lower fixing piece of the front end roof material and the roof support piece of the main roof. [Figure 11] This is a side view of the main part of the state shown in Figure 10, in which a screw member has been screwed into the lower fixing piece portion of the front end roof material via the roof support piece portion of the main roof and the upper fixing piece portion of the roof material. [Figure 12] This is a side view of the main parts of the state shown in Figure 11, in which the upper fixing piece of the roof material to be installed next has been inserted into the gap between the lower fixing piece of the roof material and the roof support piece of the main building. [Figure 13] This shows the roof material in the outdoor structure shown in Figure 1 with only the upper fixed piece attached to the main building, (a) shows the state in which a screw member has been screwed into the lower fixed piece of the roof material to be attached next, via the roof support piece of the main building and the upper fixed piece of the roof material, (a) is a partially enlarged side view of the main part showing the state in which the roof material is supported, and (b) is a partially enlarged side view of the main part showing the state in which the roof material elastically deforms when the support force applied to the roof material is removed from the state in (a), causing the gap between the roof support piece and the lower fixed piece to widen. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the roof construction method according to the present invention will be described in detail below with reference to the accompanying drawings.

[0010] 1 to 6 show an outdoor structure to which a roof construction method according to an embodiment of the present invention is applied. The outdoor structure shown here is a carport with a rectangular outer shape intended to accommodate a flat parking space, and includes pillars 10, beams 20, a purlin (roof support material) 30, and a roof 40.

[0011] The pillars 10 are made of metal such as aluminum alloy and are configured as cylindrical pillars with a rectangular cross section. The pillars 10 are erected vertically along one edge of the parking space, spaced apart from each other. The projection dimension from the ground is the same for both pillars 10. Note that the cross-sectional shape of the pillars 10 does not necessarily have to be rectangular; for example, pillars 10 with a circular cross section can also be used.

[0012] The beams 20 are formed from a metal such as an aluminum alloy. In this embodiment, the beams 20 are formed integrally with a beam main body 20a having a rectangular cylindrical cross section and purlin support pieces 20b that protrude substantially horizontally outward from the lower edges on both sides of the beam main body 20a. These beams 20 are connected to the upper ends of the respective columns 10 and are gradually inclined upward from the columns 10 toward the portion above the parking space.

[0013] The purlin 30 is formed from a metal such as an aluminum alloy. In this embodiment, the purlin 30 is formed integrally with a purlin main body 30a having a rectangular tubular cross section and roof support pieces 30b that protrude outward almost horizontally from the lower edges on both sides of the purlin main body 30a. The dimension along the longitudinal direction of the purlin 30 is set to be larger than the spacing between the beams 20. This purlin 30 is attached to the underside of the beam 20 by screwing a screw member S1 into the upper surface of the purlin main body 30a via the purlin support pieces 20b provided on the beam 20. In the illustrated example, two purlins 30 are arranged parallel to each other in a direction perpendicular to the longitudinal direction of the beam 20.

[0014] The roof portion 40 is arranged to cover the upper area of ​​the parking space and is configured to have a rectangular outer shape by arranging multiple elongated roofing materials 41 side by side in the short direction. The roofing material 41 is formed from a metal such as an aluminum alloy and has a base wall portion 41a, a hanging side wall portion (side wall portion) 41b, an upper fixed piece portion (first fixed piece portion) 41c, an engagement receiving portion 41d, an engagement wall portion 41e, a receiving side wall portion (side wall portion) 41f, and a lower fixed piece portion (second fixed piece portion) 41g. The base wall portion 41a is shaped like a flat plate extending horizontally. The dimension along the longitudinal direction of the base wall portion 41a is greater than the dimension along the longitudinal direction of the beam 20. The hanging side wall portion 41b extends upward approximately vertically from one edge of the base wall portion 41a. The upper fixing piece 41c extends outward almost horizontally from the upper edge of the hanging side wall 41b, and has a bent portion 41h bent downward at the extending edge. The engagement receiving portion 41d protrudes outward from a position below the middle portion on the outer surface of the hanging side wall 41b, and then extends downward. An engagement groove 41i that opens downward is formed between the engagement receiving portion 41d and the hanging side wall 41b. The width of the engagement groove 41i is configured to be larger than the plate thickness of the engagement wall 41e (described later). When the engagement wall 41e is inserted into the engagement groove 41i, a gap is secured along the longitudinal direction of the base wall 41a. The engagement wall 41e extends upward from the other edge of the base wall 41a, then extends outward almost horizontally, and then extends vertically upward. The extension dimension of the engaging wall 41e from the base wall 41a is slightly smaller than the dimension from the base wall 41a to the inner top surface of the engaging groove 41i. The receiving side wall 41f extends upward almost vertically from a portion of the other edge of the base wall 41a that is inward from the engaging wall 41e. The lower fixed piece 41g extends outward almost horizontally from the upper edge of the receiving side wall 41f. The extension length of the lower fixed piece 41g is smaller than the dimension from the hanging side wall 41b to the bent portion 41h of the upper fixed piece 41c. The dimension from the base wall 41a to the upper surface of the lower fixed piece 41g is almost equal to the dimension from the base wall 41a to the lower surface of the upper fixed piece 41c.

[0015] The roof members 41 are inserted into the engaging grooves 41i and the engaging wall portions 41e, and are arranged side by side in the transverse direction with the upper fixing pieces 41c overlapping the upper surfaces of the lower fixing pieces 41g, thereby forming a roof member 40 in which the underside of the base wall portion 41a is substantially flat. As is clear from the figure, a front-end roof member 41A is arranged next to the hanging side wall portion 41b on one side of the roof member 40, and a front-end roof member 41B is arranged next to this front-end roof member 41A. A front-end roof member 41B is also arranged next to the receiving side wall portion 41f on the other side of the roof member 40. The front-end roof member 41A has receiving side walls 41f and engaging walls 41e on both edge portions of the base wall portion 41a. The end roof material 41B has a hanging side wall portion 41b, an upper fixed piece portion 41c, and an engagement receiving portion 41d at one edge of the base wall portion 41a, a side frame support wall portion 41j, a frame receiving wall portion 41k, and a frame position restricting protrusion 41m at the other edge of the base wall portion 41a, and further has a lid support wall portion 41n at the middle of the base wall portion 41a. The side frame support wall portion 41j extends upward from the other edge of the base wall portion 41a. The frame receiving wall portion 41k extends inward almost horizontally from the upper edge of the side frame support wall portion 41j. The frame position restricting protrusion 41m extends horizontally from the edge of the base wall portion 41a and then bends upward at an almost right angle. The lid support wall 41n extends upward from the middle of the base wall 41a and then extends almost horizontally toward the hanging side wall 41b. The roof section 40, which is formed by arranging the roof material 41, the end front roof material 41A, and the end roof material 41B side by side, is configured to have dimensions larger than the longitudinal dimensions of the main building 30.

[0016] As shown in Figure 7, the roof material 41, front end roof material 41A, and front end roof material 41B having the above-mentioned configuration are connected to each other and supported on the underside of the purlin 30 by screwing screw members (fixing devices) S2 into the upper fixing piece 41c and the lower fixing piece 41g from above via the roof support piece 30b of the purlin 30. More specifically, as shown in Figure 8, at one end of the purlin 30, the upper fixing piece 41c of the front end roof material 41B is first abutted against the underside of the roof support piece 30b, and the lower fixing piece 41g of the front end roof material 41A is overlapped on the underside of the upper fixing piece 41c. Furthermore, the engaging wall portion 41e of the front end roof material 41A is inserted into the engaging groove 41i of the front end roof material 41B. From this state, the end roof material 41B is attached to one end of the main house 30 by screwing the screw member S2 into the lower fixed piece 41g via the roof support piece 30b and the upper fixed piece 41c of the main house 30, and one end of the front end roof material 41A is attached to the main house 30.

[0017] In this state, the front-end roof material 41A is attached to the underside of the purlin 30 only via one (left side in Figure 8(a)) lower fixing piece 41g, so the other (right side in Figure 8(a)) lower fixing piece 41g of the front-end roof material 41A is separated from the purlin 30. In other words, when the support force of the front-end roof material 41A is removed from the state shown in Figure 13(a), the receiving side wall portion 41f elastically deforms with respect to the lower fixing piece 41g by an amount equal to the gap between the engaging wall portion 41e and the engaging groove 41i due to its own weight, as shown in Figure 13(b), and as a result, the base wall portion 41a assumes a position in which it is tilted downward to the right in Figure 8(a). 9 and 10, by sliding the roof material 41 in the short direction, the upper fixing piece 41c can be inserted into the gap between the lower fixing piece 41g and the purlin 30, and by inserting the engagement wall 41e into the engagement groove 41i and engaging the bent portion 41h of the upper fixing piece 41c with the lower fixing piece 41g, the roof material 41 can be temporarily placed in a positioned state relative to the front-end roof material 41A. This makes it possible to screw the screw member S2 into the upper fixing piece 41c of the roof material 41 and the lower fixing piece 41g of the front-end roof material 41A from above via the roof support piece 30b of the purlin 30, even if the roof material 41 is not kept positioned by hand, by simply pushing the front-end roof material 41A upward, it is possible to

[0018] Similarly, when a roofing material 41 is attached to the underside of the purlin 30 via only the upper fixing piece 41c, as shown in Fig. 13(b), its own weight causes the hanging side wall 41b to elastically deform relative to the upper fixing piece 41c by the amount of the gap between the engagement wall 41e and the engagement groove 41i, resulting in the base wall 41a being tilted downward to the right in Fig. 11. Therefore, for this roofing material 41, as shown in Fig. 12, by sliding the next roofing material 41 in the short direction, the upper fixing piece 41c can be inserted into the gap between the lower fixing piece 41g and the purlin 30, and by further inserting the engagement wall 41e into the engagement groove 41i and engaging the bent portion 41h of the upper fixing piece 41c with the lower fixing piece 41g, the next roofing material 41 can be temporarily placed in a position relative to the roofing material 41 attached to the purlin 30. This means that even if the next roof material 41 to be installed is not kept in position by hand, by simply pushing up the roof material 41 installed on the main house 30, the screw member S2 can be screwed into the upper fixed piece 41c and lower fixed piece 41g of the roof material 41 from above via the roof support piece 30b of the main house 30, making the work easier.

[0019] By repeating the above steps, the roof section 40 can be constructed by attaching multiple roofing materials 41 in a side-by-side arrangement to the underside of the main building 30. By attaching side frames 42 to both sides of the roof section 40, a front frame 43 to the front edge, and a rear frame 44 to the rear edge, the roof body of an outdoor structure can be constructed. Incidentally, the work of screwing the screw members S2 into the upper fixing piece 41c and the lower fixing piece 41g of the roofing material 41 via the roof support piece 30b of the main building 30 must be performed from above the roofing material 41. Therefore, since space is required on the side to support the roofing material 41 in order to secure the last roofing material 41 to the main building 30, it is preferable to determine the direction in which the roofing materials 41 are arranged side by side, taking the surrounding space into consideration. In other words, it is preferable to construct the roof body by sequentially arranging the roofing materials 41 side by side, starting from the inside of the space.

[0020] In the roof structure constructed as described above, the screw member S2 is threaded from above through the roof support piece 30b of the purlin 30 and the upper fixed piece 41c into the lower fixed piece 41g, so the portion below the screw member S2 is covered by the base wall portion 41a of the roof material 41. Therefore, even if water such as rainwater seeps in through the portion where the screw member S2 is threaded, the intruding water is received by the base wall portion 41a, and there is no concern that it will leak below the roof structure. However, the screw member S2 may also be attached from below and threaded into the roof support piece 30b of the purlin 30 through the lower fixed piece 41g and the upper fixed piece 41c.

[0021] Although the above-described embodiment illustrates a carport, the present invention is not limited to a carport, and may be any type of roof structure formed by arranging multiple roofing materials side by side on the underside of a roof support. In this case, the roof structure is not limited to one with pillars only on one edge, and may also have pillars on both side edges of the roof structure. The beams do not necessarily have to be inclined. Furthermore, the first and second fixing pieces do not need to be in direct contact with each other, as long as they overlap vertically.

[0022] As described above, the roof body construction method of the present invention is a method of constructing a roof body by arranging multiple roof materials, each having a first fixed piece portion on one side edge of a base wall portion and a second fixed piece portion on the other side edge of the base wall portion, side by side along the length of a roof support material, and attaching the roof materials to the underside of the roof support material via the first fixed piece portion and the second fixed piece portion using a fixing device, and is characterized by including the steps of attaching the first fixed piece portion of a first roof material to the underside of the roof support material using a fixing device, inserting and positioning the first fixed piece portion of a second roof material into the gap created between the second fixed piece portion of the first roof material and the roof support material, and attaching the second fixed piece portion of the first roof material and the first fixed piece portion of the second roof material to the underside of the roof support material using a fixing device so that they are vertically overlapping. According to this invention, when installing the second roof material, the first fixing piece portion of the second roof material is inserted into the gap between the second fixing piece portion of the first roof material that was installed earlier and the roof support material, so that one side edge portion of the second roof material can be supported by the first roof material, which makes it possible to simplify the work of attaching the fixing device to the second roof material.

[0023] The present invention is also characterized in that, in the above-mentioned roof body construction method, the fixing device is attached from the roof support material to the second fixing piece portion of the first roof material and the first fixing piece portion of the second roof material which are superimposed on the underside of the roof support material. According to this invention, a water receiving section can be provided below the fixing device, and even if water enters through the attachment section of the fixing device, it can be received by the water receiving section, thereby preventing water from entering the lower area of ​​the roof body.

[0024] The present invention is also characterized in that, in the above-mentioned roof body construction method, a roof material is applied as the first roof material and the second roof material, which has side wall portions extending upward on both side edges of a flat base wall portion, and a first fixed piece portion extending outward and then bending downward at the upper edge of one of the side wall portions, and a second fixed piece portion extending outward on the upper edge of the other side wall portion, and when the first fixed piece portion of the second roof material is inserted into the gap that occurs between the second fixed piece portion of the first roof material and the roof support material, the bent edge portion of the first fixed piece portion engages with the second fixed piece portion. According to this invention, a bent edge is provided on the first fixing piece portion, which can be hooked onto the second fixing piece portion of the first roofing material, making it possible to temporarily place the second roofing material on the first roofing material, making the work even easier.

[0025] The present invention is also characterized in that, in the above-mentioned roof body construction method, the first fixing piece portion of the first roof material is attached to the underside of the roof support material using the fixing device, and then the first roof material is elastically deformed to create a gap between the second fixing piece portion and the roof support material. According to this invention, the gap between the first roof material and the roof support material can be widened by elastically deforming the first roof material, making it possible to facilitate the work of inserting the first fixing piece portion of the second roof material.

[0026] The present invention is also characterized in that, in the above-mentioned roof body construction method, roof materials that are long along a direction perpendicular to the longitudinal direction of the roof support material are used as the first roof material and the second roof material, and the first fixed piece portion is inserted into the gap between the second fixed piece portion of the first roof material and the roof support material by moving the second roof material along the short side direction. According to this invention, the distance that the second roof material must be moved can be shortened, thereby making the work easier. [Explanation of symbols]

[0027] 30 purlin, 30a purlin main body, 30b roof support piece, 40 roof part, 41 roof material, 41A end front roof material, 41B end roof material, 41a base wall part, 41b hanging side wall part, 41c upper fixing piece part, 41f receiving side wall part, 41g lower fixing piece part, 41h bending part, S2 screw member

Claims

1. A roof construction method for constructing a roof body by arranging a plurality of roof materials, each of which has a first fixing piece portion on one side edge of a base wall portion and a second fixing piece portion on the other side edge of the base wall portion, in parallel along the length of a roof support material, and attaching the roof materials to the underside of the roof support material via the first fixing piece portion and the second fixing piece portion with fixing devices, a step of attaching a first fixing piece portion of a first roof material to the underside of the roof support material using a fixing tool; a step of inserting and arranging the first fixing piece of the second roof material into a gap generated between the second fixing piece of the first roof material and the roof support material; a step of attaching the second fixing piece portion of the first roof material and the first fixing piece portion of the second roof material to the underside of the roof support material using a fixing tool in a state where they are in a vertically overlapping position; A roof construction method comprising:

2. A roof construction method as described in claim 1, characterized in that the fixing device is attached from the roof support material to the second fixing piece portion of the first roof material and the first fixing piece portion of the second roof material, which are superimposed on the underside of the roof support material.

3. The roofing material has side walls extending upward from both side edges of a flat base wall, and a first fixing piece is provided at the upper edge of one of the side walls, which extends outward and then bends downward, while the other side wall has a second fixing piece that extends outward from the upper edge. The first roofing material and the second roofing material are used as the roofing material. A roof construction method as described in claim 1, characterized in that when the first fixed piece portion of the second roof material is inserted into the gap that occurs between the second fixed piece portion of the first roof material and the roof support material, the bent edge portion of the first fixed piece portion is engaged with the second fixed piece portion.

4. A roof construction method as described in claim 1, characterized in that after the first fixing piece portion of the first roof material is attached to the underside of the roof support material by the fixing device, the first roof material is elastically deformed to create a gap between the second fixing piece portion and the roof support material.

5. The roof support member is provided with a first roofing material and a second roofing material, each of which is elongated along a direction perpendicular to the longitudinal direction of the roof support member. A roof body construction method as described in claim 1, characterized in that the first fixing piece portion is inserted into the gap between the second fixing piece portion of the first roof material and the roof support material by moving the second roof material along the short side direction.

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