Building Structure

Abstract

This invention provides a ridge structure that allows for increased dimensions to adjust the installation position of roofing materials. [Solution] The system comprises a roof base 10, roofing material 2 placed on the roof base 10, a base member 5 placed along the ridge portion 102 of the roof base 10, a mounting plate 6 placed on the base member 5, and a ridge cap 7 fixed to the mounting plate 6. The base member 5 has a fixing portion 51 fixed to the roof base 10, a support portion 52 to which the mounting plate 6 is fixed, and a connecting portion 53 connecting the fixing portion 51 and the support portion 52. The ridge-side end 29 of the roofing material 2 is placed between the fixing portion 51 and the support portion 52. The ridge cap 7 is placed so as to cover the ridge portion 102, the base member 5, the mounting plate 6, and the ridge-side end 29 of the roofing material 2.

Description

Technical Field

[0001] The present disclosure relates to a building structure. More specifically, the present disclosure relates to a building structure applicable to roofs such as gable roofs and hip roofs.

Background Art

[0002] Patent Document 1 discloses a building structure of a roof. This building structure relates to a ventilation ridge, and is a mounting structure for mounting a ventilation ridge having a ventilation path and an exhaust port extending along the roof slope from near the top of the gable roof of a building to both sides in the eaves direction on the roof using a mounting base, and is characterized in that the installation area of the mounting base and the ventilation ridge is larger than the installation area of the mounting base and the field board.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the building structure as described above, a base is provided further on the ridge side than the ridge-side end of the roofing material, and the ventilation ridge is fixed to this base. Therefore, when trying to move the roofing material further on the ridge side than the base, the ridge-side end of the roofing material hits the base and it becomes impossible to move, and there is a problem that the dimension for adjusting the installation position of the roofing material is small.

[0005] An object of the present disclosure is to provide a building structure capable of increasing the dimension for adjusting the installation position of a roofing material.

Means for Solving the Problems

[0006] A ridge structure according to one aspect of the present disclosure comprises a roof base, a roofing material disposed on the roof base, a base member disposed along the ridge of the roof base, a mounting plate disposed on the base member, and a ridge cap fixed to the mounting plate. The base member has a fixing portion fixed to the roof base, a support portion to which the mounting plate is fixed, and a connecting portion connecting the fixing portion and the support portion. The ridge end of the roofing material is disposed between the fixing portion and the support portion. The ridge cap is disposed to cover the ridge, the base member, the mounting plate, and the ridge end of the roofing material. [Effects of the Invention]

[0007] According to this disclosure, since the ridge end of the roofing material is positioned between the fixing part and the support part, the installation position of the roofing material can be changed so that the ridge end of the roofing material is located within the range between the fixing part and the support part, and the dimensions for adjusting the installation position of the roofing material can be increased. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an enlarged cross-sectional view of a part of the building structure according to this embodiment. [Figure 2] Figure 2 is a cross-sectional view of the same object. [Figure 3] Figure 3 is a perspective view showing two roofing materials arranged in the longitudinal direction as shown above. [Figure 4] Figure 4 is a perspective view showing the roof structure of the same building. [Figure 5] Figure 5 is a perspective view showing the roofing material described above. [Figure 6] Figure 6A is a partial perspective view showing the ridge capping shown above. Figure 6B is a partial perspective view showing the base member shown above. [Figure 7] Figure 7 is a cross-sectional view showing a ridge structure with a different shape at the ridge end compared to the roofing material shown in Figure 1. [Figure 8] Figure 8 is a cross-sectional view showing the ridge structure of a roof with a steeper slope than that shown in Figure 1. [Figure 9]Figure 9 is a cross-sectional view showing a ridge structure with a different shape at the ridge end compared to the roofing material shown in Figure 8. [Figure 10] Figure 10 is a cross-sectional view showing a comparative example. [Figure 11] Figure 11 is a partial perspective view showing a base member used in a modified example of the ridge structure according to this embodiment. [Figure 12] Figure 12 is an enlarged cross-sectional view of a modified example of the ridge structure according to this embodiment. [Modes for carrying out the invention]

[0009] The present disclosure will be described below based on the embodiments shown in the attached drawings, but the present disclosure is not limited to the embodiments described below, and appropriate design modifications are possible within the scope intended by the present disclosure.

[0010] (Embodiment) (1) Overview As shown in Figures 1 and 2, the ridge structure 1 of this embodiment comprises a roof base 10, roofing material 2, a base member 5, a mounting plate 6, and a ridge cap 7. The roofing material 2 is placed on the roof base 10. The base member 5 is placed along the ridge portion 102 of the roof base 10. The mounting plate 6 is placed on the base member 5. The ridge cap 7 is fixed to the mounting plate 6.

[0011] The base member 5 has a fixing portion 51, a support portion 52, and a connecting portion 53, and is formed in a roughly U-shape in cross-section. The fixing portion 51 is fixed to the roof substrate 10. The mounting plate 6 is fixed to the support portion 52. The connecting portion 53 connects the fixing portion 51 and the support portion 52. The ridge end portion 29 of the roofing material 2 is positioned between the fixing portion 51 and the support portion 52. The ridge capping 7 is positioned to cover the ridge portion 102, the base member 5, the mounting plate 6, and the ridge end portion 29 of the roofing material 2.

[0012] In this embodiment, between the gable-side end portion 29 of the roof material 2 and the ridge portion 102, there is no member such as an angle member (the base in Patent Document 1) for fixing the mounting plate 6. Instead, a base member 5 having a substantially U-shaped cross section is arranged along the ridge portion 102, the mounting plate 6 is fixed on this base member 5, and the gable-side end portion 29 of the roof material 2 is arranged between the fixing portion 51 and the support portion 52. Therefore, the installation position of the roof material 2 can be changed so that the gable-side end portion 29 of the roof material 2 is located within the range between the fixing portion 51 and the support portion 52, and the adjustment range of the installation position of the roof material 2 can be expanded.

[0013] (2) Details The ridge structure 1 of this embodiment shown in FIGS. 1 and 2 can be formed in a roof structure 100 as shown in FIG. 4. The building to which the roof structure 100 is applied may be any of a residential building, a non-residential building, or a composite building. The residential building is, for example, a detached house or an apartment house, etc. The non-residential building is, for example, a store, a warehouse, a factory, or an assembly hall, etc. The composite building is a building having a portion used for residential purposes and a portion used for non-residential purposes.

[0014] <Roof base> The roof base 10 is the base of a plurality of roof materials 2. The roof base 10 has, for example, a sheathing board 11 and an underlay material 12 laid on the upper surface of the sheathing board 11. In this case, the upper surface of the underlay material 12 is the upper surface of the roof base 10. Note that the roof base 10 may not have the underlay material 12. Also, the roof base 10 is not limited to having the sheathing board 11, and may be composed of, for example, a plurality of horizontal girders or the like. Further, when the roof material 2 is used for renovation, the roof base 10 may be composed of existing roof materials.

[0015] Above the roof space 10, a plurality of roof materials 2 are laid side by side in the flow direction and the lateral direction. In the present disclosure, the "flow direction" is the direction in which rainwater flows on the roof surface formed by the roof structure 100, which is parallel to the gradient direction of the roof surface and is the direction toward the lower side of the water. Here, the "roof surface" is one surface of the upper surface of the roof formed by the roof structure 100 and has a certain gradient. For example, when the roof structure 100 forms a single-slope roof, the roof structure 100 has only one roof surface. For example, when the roof structure 100 forms a gable roof, the roof structure 100 has two roof surfaces. The roof structure 100 may have three or more roof surfaces. In the present disclosure, the "lateral direction" means the horizontal direction orthogonal to the flow direction.

[0016] <Roof material> Each roof material 2 is formed by bending a single metal plate, and is, for example, formed by pressing. The metal plate constituting each roof material 2 is, for example, a painted steel plate, a galvanized steel plate, a stainless steel plate, a galvalume steel plate (registered trademark), an SGL (registered trademark) steel plate, or the like.

[0017] Each roof material 2 has substantially the same shape and size. Each roof material 2 is a member formed such that the dimension in the flow direction is longer than the dimension in the lateral direction and has a longitudinal direction. Hereinafter, the direction along the flow direction of the roof material 2 is referred to as the "longitudinal direction".

[0018] Each roof material 2 is, for example, 2 m or more and 4 m or less in the longitudinal dimension, and on one roof surface, a plurality of roof materials 2 are laid side by side in the longitudinal direction. The longitudinal dimension of each roof material 2 is not limited.

[0019] In two adjacent roof materials 2 in the flow direction, the lower-end portion on the water side of the roof material 2 located on the upper side of the water overlaps the upper-end portion on the water side of the roof material 2 located on the lower side of the water. In two adjacent roof materials 2 in the lateral direction, the end portion on the side of the other roof material 2 of one roof material 2 overlaps the end portion on the side of the one roof material 2 of the other roof material 2.

[0020] As shown in Figures 3 and 5, each roofing material 2 has a downstream stepped portion 26 formed at the downstream end and an upstream stepped portion 27 formed at the upstream end. That is, each roofing material 2 has multiple stepped portions 215. The roofing material 2 has a main body 20, a vertical portion 22, a stepped portion 23, a vertical portion 24, and a stepped portion 25. The main body 20, the vertical portion 22, the stepped portion 23, the vertical portion 24, and the stepped portion 25 are formed integrally.

[0021] The main body 20 constitutes the portion of the roofing material 2 between the downstream end and the upstream end. The lateral ends of the main body 20 are the lateral ends of the roofing material 2. The upright portion 22 extends from the downstream end of the main body 20 toward the back side. In this disclosure, "back side" means the side of the roofing substrate 10, and includes not only directions perpendicular to the back side but also directions not perpendicular to the back side.

[0022] The upright section 22 is formed along the entire length of the downstream end of the main body 20. The stepped section 23 extends downstream from the lower end of the upright section 22. The stepped section 23 is formed along the entire length of the lower end of the upright section 22. The stepped section 23 constitutes the downstream end of the roofing material 2.

[0023] The rising portion 24 extends from the upstream end of the main body 20 toward the surface side. In this disclosure, "surface side" means the side opposite to the roof base 10, and includes not only directions perpendicular to the surface but also directions not perpendicular to the surface.

[0024] The rising section 24 is formed along the entire length of the upstream end of the main body 20. The stepped section 25 extends upstream from the upper end of the rising section 24. The stepped section 25 is formed along the entire length of the upper end of the rising section 24. The stepped section 25 constitutes the upstream end of the roofing material 2.

[0025] The downstream step section 26 is composed of the downstream end of the main body 20, the upright section 22, and the stepped section 23. The upstream step section 27 is composed of the upstream end of the main body 20, the upright section 24, and the stepped section 25. The downstream end of the stepped section 23 is the downstream end of the roofing material 2. The upstream end of the stepped section 25 is the upstream end of the roofing material 2.

[0026] The main body 20, the lower step 23, and the upper step 25 each have a cross-sectional shape perpendicular to the longitudinal direction that is substantially the same along the entire length in the longitudinal direction.

[0027] Each roofing material 2 is placed on the roofing base 10 such that, for example, the downhill corner formed by the upright section 22 and the stepped section 23, and the uphill corner formed by the upright section 24 and the stepped section 25, are in contact with the downhill roofing material 2 and the roofing base 10, or in contact with the roofing base 10.

[0028] When another roofing material 2 is installed on the downstream side of roofing material 2, the downstream ends of the stepped section 23 and the main body 20 overlap the main body 20 and stepped section 25 of the other roofing material 2, respectively. In addition, the upright section 22 is located downstream of the upright section 24 of the other roofing material 2 and faces the upright section 24 of the other roofing material 2.

[0029] The rising section 24 restricts the rising section 22 of other roofing materials 2 adjacent to the upstream side from moving upstream. Workers installing the roofing materials 2 can align the roofing materials 2 by positioning the rising section 22 on the downstream side of the rising section 24 of the roofing materials 2 installed downstream. In addition, the rising section 24 dams up rainwater that flows upstream along the surface of the main body 20. This improves the waterproofing of the building.

[0030] Each roofing material 2 is provided with an intermediate section 28 that constitutes the lateral middle portion. The intermediate section 28 includes a main intermediate section 200 that constitutes the lateral middle portion of the main body 20, a lower intermediate section 230 that constitutes the lateral middle portion of the lower section 23, and an upper intermediate section 250 that constitutes the lateral middle portion of the upper section 25.

[0031] The main body intermediate section 200, the lower step intermediate section 230, and the upper step intermediate section 250 each have the same cross-sectional shape and size perpendicular to the longitudinal direction. Therefore, the main body intermediate section 200 will be described in detail below, and for the lower step intermediate section 230 and the upper step intermediate section 250, elements common to the main body intermediate section 200 will be given the same reference numerals, and redundant explanations will be omitted.

[0032] The main body's intermediate section 200 has a pair of horizontally spaced flat sections 201 and 202, and a protruding section 203 located between the pair of flat sections 201 and 202. Each of the pair of flat sections 201 and 202 is formed in a flat shape along the upper surface of the roof base 10.

[0033] The protruding portion 203 of the main body's intermediate section 200 is formed along the entire length of the intermediate section 200 in the longitudinal direction. The protruding portion 203 protrudes more toward the surface than the other parts of the main body's intermediate section 200 (a pair of flat plate sections 201, 202). The cross-sectional shape of the protruding portion 203 perpendicular to the longitudinal direction is a curved V-shape that protrudes toward the surface. The pair of flat plate sections 201, 202 of the main body's intermediate section 200 extend laterally outward from the lower end of the protruding portion 203.

[0034] The protruding portions 203 of the lower section 23 and the upper section 25 are formed in the same position as the protruding portion 203 of the middle section 200 of the main body in the lateral direction. The protruding portion 203 of the lower section 23 is located downstream of the protruding portion 203 of the middle section 200 of the main body, and the protruding portion 203 of the upper section 25 is located upstream of the protruding portion 203 of the middle section 200 of the main body.

[0035] The intermediate section 28 of the roofing material 2 has an intermediate overlapping section 280, which is composed of the protruding portion 203 of the main intermediate section 200, the protruding portion 203 of the lower section 23, and the protruding portion 203 of the upper section 25. The intermediate overlapping section 280 extends along the entire length of the roofing material 2 in the longitudinal direction.

[0036] As shown in Figure 3, each roofing material 2 is provided with a pair of overlapping sections 3 and 4 formed at both ends in the lateral direction.

[0037] Hereinafter, of the pair of overlapping sections 3 and 4, the overlapping section 3 formed at one gable end (one end in the lateral direction) of the roofing material 2 will be referred to as the one overlapping section 3, and the overlapping section 4 formed at the other gable end (the other end in the lateral direction (the end opposite to the one overlapping section 3)) of the roofing material 2 will be referred to as the other overlapping section 4. Furthermore, in this disclosure, as shown in Figures 3 and 4, the direction parallel to the lateral direction and moving from the other overlapping section 4 toward the one overlapping section 3 will be referred to as the one, and the direction parallel to the lateral direction and moving from the one overlapping section 3 toward the other overlapping section 4 will be referred to as the other.

[0038] The pair of overlapping sections 3 and 4 (one overlapping section 3 and the other overlapping section 4) have a pair of main body overlapping sections 204, a pair of downstream overlapping sections 231, and a pair of upstream overlapping sections 251. Each of the pair of main body overlapping sections 204 is formed at both lateral ends of the main body 20 and protrudes toward the surface. Each of the pair of main body overlapping sections 204 is formed along the entire length of the main body 20 in the longitudinal direction.

[0039] A pair of downstream overlapping sections 231 are formed at the lateral ends of the stepped section 23, respectively, and protrude toward the surface. Each of the pair of downstream overlapping sections 231 is formed along the entire length of the stepped section 23 in the longitudinal direction.

[0040] A pair of water-side overlapping sections 251 are formed at the lateral ends of the stepped upper section 25, respectively, and protrude toward the surface. Each of the pair of water-side overlapping sections 251 is formed along the entire length of the stepped upper section 25 in the longitudinal direction.

[0041] Hereinafter, the overlapping portion 204 formed at one end of the main body 20 will be referred to as the one-side overlapping portion 205, and the overlapping portion 204 formed at the other end of the main body 20 will be referred to as the other-side overlapping portion 206. Furthermore, the downstream overlapping portion 231 formed at one end of the lower step portion 23 will be referred to as the one-side downstream overlapping portion 231A, and the downstream overlapping portion 231 formed at the other end of the lower step portion 23 will be referred to as the other-side downstream overlapping portion 231B. Furthermore, the upstream overlapping portion 251 formed at one end of the upper step portion 25 will be referred to as the one-side upstream overlapping portion 251A, and the upstream overlapping portion 251 formed at the other end of the upper step portion 25 will be referred to as the other-side upstream overlapping portion 251B.

[0042] On the one hand, the downstream overlapping section 231A is located downstream of the main overlapping section 205, and on the one hand, the upstream overlapping section 251A is located upstream of the main overlapping section 205. The main overlapping section 205, the downstream overlapping section 231A, and the upstream overlapping section 251A have the same cross-sectional shape and size perpendicular to the longitudinal direction. The main overlapping section 205, the downstream overlapping section 231A, and the upstream overlapping section 251A each have a cross-sectional shape perpendicular to the longitudinal direction of the roofing material 2 that is curved to protrude toward the surface.

[0043] Furthermore, the other downstream overlapping section 231B is located downstream of the other main overlapping section 206, and the other upstream overlapping section 251B is located upstream of the other main overlapping section 206. The other main overlapping section 206, the other downstream overlapping section 231B, and the other upstream overlapping section 251B have the same cross-sectional shape and size perpendicular to the longitudinal direction. The other main overlapping section 206, the other downstream overlapping section 231B, and the other upstream overlapping section 251B each have a cross-sectional shape perpendicular to the longitudinal direction of the roofing material 2 that is curved to protrude toward the surface.

[0044] When another roofing material 2 is installed on the downstream side of roofing material 2, the downstream ends of the protruding portion 203 of the lower section 23 and the protruding portion 203 of the main body intermediate section 200 overlap with the upstream end of the protruding portion 203 of the main body intermediate section 200 and the protruding portion 203 of the upper section 25 of the other roofing material 2, respectively. In addition, the downstream end of the one downstream overlapping section 231A and the one main body overlapping section 205 overlap with the upstream end of the one main body overlapping section 205 and the one upstream overlapping section 251A of the other roofing material 2, respectively. As a result, the lateral movement of roofing material 2 relative to other roofing materials 2 is restricted.

[0045] If another roofing material 2 is installed on the other side of roofing material 2, the other overlapping portion 4 fits over the one overlapping portion 3 of the other roofing material 2, covering and concealing the surface of the one overlapping portion 3 of the other roofing material 2. In this case, the other overlapping portion 4, with the other main overlapping portion 206, the other downstream overlapping portion 231B, and the other upstream overlapping portion 251B (see Figure 3), overlaps the one main overlapping portion 205, the one downstream overlapping portion 231A, and the one upstream overlapping portion 251A of the other roofing material 2, respectively.

[0046] One overlapping portion 3 and the other overlapping portion 4 are fixing portions that are fixed to the roof base 10. Laterally adjacent roofing materials 2 are fixed to the roof base 10 by fasteners 13 that penetrate vertically through the one overlapping portion 3 and the other overlapping portion 4 of the roofing material 2 that overlaps this one overlapping portion 3 (see Figures 1 and 2). The fasteners 13 are, for example, nails or screws.

[0047] As shown in Figure 3, the vertical portion 24 of each roofing material 2 has a plurality of protrusions 240. The vertical portion 24 has a pair of protrusions 240 that are spaced apart in the lateral direction. The pair of protrusions 240 are formed in the portion of the vertical portion 24 located between one overlap 3 and the intermediate overlap 280, and in the portion of the vertical portion 24 located between the other overlap 4 and the intermediate overlap 280. Each protrusion 240 is formed along the entire vertical length of the vertical portion 24. The lower end of each protrusion 240 is connected to the corresponding flat portion 201, 202 of the main body 20.

[0048] Each projection 240 is curved to protrude toward the downstream side and is formed, for example, by bending a part of the metal plate that makes up the rising section 24. Each projection 240 has a tip wall 241 and a pair of side wall sections 242, 243. The tip wall 241 constitutes the tip (downstream end) of the projection 240. The tip wall 241 is formed in a flat plate shape that is substantially perpendicular to the longitudinal direction and parallel to the parts of the rising section 24 other than the pair of projections 240. The tip wall 241 extends toward the surface side from the corresponding flat plate sections 201, 202 of the main body 20.

[0049] The pair of side wall sections 242 and 243 extend toward the water surface from both lateral ends of the tip wall section 241. Each side wall section 242 and 243 is formed in a flat plate shape inclined with respect to the longitudinal direction, such that the portion closer to the water surface is located further outward from the projection 240 in the lateral direction. The water surface ends of each side wall section 242 and 243 are connected to the portion of the rising section 24 other than the pair of projection sections 240.

[0050] When another roofing material 2 is installed on the upstream side of roofing material 2, the tip wall portion 241 of each projection 240 is in contact with or near the upstream surface of the rising portion 22 of the other roofing material 2. In this case, the distance from the tip wall portion 241 of each projection 240 to the rising portion 22 of the other roofing material 2 is shorter than the distance from the other portion 244, which is the part of the rising portion 24 other than the pair of projections 240, to the rising portion 22 of the other roofing material 2. As a result, a gap 14 (see Figure 4) is formed between the other portion 244 and the rising portion 22 of the other roofing material 2 adjacent to the upstream side. That is, when two adjacent roofing materials 2 in the flow direction are designated as the downstream roofing material 2A and the upstream roofing material 2, a gap 14 is formed between the other portion 244 of the rising portion 24 of the downstream roofing material 2A and the rising portion 22 of the upstream roofing material 2B. In this embodiment, gaps 14 are formed on both sides of each protrusion 240 in the lateral direction. These gaps 14 prevent rainwater that has reached the area between the rising portion 24 and the rising portion 22 of another roofing material 2 adjacent to it on the upstream side from rising due to capillary action. As a result, rainwater on the downstream side of the rising portion 24 is prevented from rising onto the stepped portion 25, thereby improving the waterproofing of the building. The roofing material 2 can be installed with position adjustments up to approximately minus 200 mm of its longitudinal length.

[0051] The shape of each protrusion 240 is not limited. For example, the side walls 242 and 243 of each protrusion 240 may be formed in a flat plate shape parallel to the longitudinal direction. Alternatively, each protrusion 240 may be formed in a curved arc shape that protrudes toward the downstream side. Furthermore, each protrusion 240 may be formed only on a part of the rising section 24 in the vertical direction. For example, the protrusion 240 may be formed only on the lower end of the rising section 24, only on the upper end, or only in the middle of the vertical direction.

[0052] Furthermore, the number of protrusions 240 on the rising portion 24 is not limited; the rising portion 24 may have only one protrusion 240, or it may have three or more.

[0053] The roof structure 100 is equipped with roofing material 2, which consists of a first roofing material 2a and a second roofing material 2b. In Figure 3, the roofing material 2 located on the downstream side is the first roofing material 2a, and in Figure 2, the roofing material 2 located on the upstream side is the second roofing material 2b.

[0054] The first roofing material 2a is the roofing material 2 located furthest downstream among multiple roofing materials 2, and constitutes the eaves end of the roof surface. The second roofing material 2b is a roofing material 2 on which other roofing materials 2 are installed downstream, and constitutes the portion of the roof surface other than the eaves end. That is, the second roofing material 2b is installed on the upstream side of the first roofing material 2a or on the upstream side of other second roofing materials 2b.

[0055] Multiple roofing materials 2 arranged in the direction of flow are installed sequentially, starting with the roofing material 2 located downstream. That is, for adjacent roofing materials 2 in the direction of flow, the downstream roofing material 2 is installed first, followed by the upstream roofing material 2. Multiple roofing materials 2 arranged horizontally are installed sequentially, starting with the roofing material 2 located on the other side (opposite the overlapping section 3). That is, for adjacent roofing materials 2 in the horizontal direction, the other roofing material 2 is installed first, followed by the first roofing material 2.

[0056] Next, an example of a method for installing multiple roofing materials 2 will be described. In the following description, as shown in Figure 4, only one second roofing material 2b is installed on the upstream side of the first roofing material 2a. However, two or more second roofing materials 2b may be installed on the upstream side of the first roofing material 2a, aligned in the direction of flow. In the following description, as shown in Figure 4, multiple first roofing materials 2a installed in a horizontal arrangement will be numbered sequentially from the first roofing material 2a furthest to the other, as the first downstream roofing material 2a1, the second downstream roofing material 2a2, the third downstream roofing material, and so on. Similarly, multiple second roofing materials 2b installed in a horizontal arrangement on the roof surface will be numbered sequentially from the second roofing material 2b furthest to the other, as the first upstream roofing material 2b1, the second upstream roofing material 2b2, the third upstream roofing material, and so on.

[0057] First, the worker places the first downstream roofing material 2a1 onto the roof base 10. Next, as shown in Figure 4, the worker fits the other overlapping portion 4 of the second downstream roofing material 2a2 onto the one overlapping portion 3 of the first downstream roofing material 2a1, and places the second downstream roofing material 2a2 onto the roof base 10. After this, the worker fixes the one overlapping portion 3 of the first downstream roofing material 2a1 and the other overlapping portion 4 of the second downstream roofing material 2a2, which is fitted onto this one overlapping portion 3, to the roof base 10 with fasteners 13. Subsequently, the worker installs the third downstream roofing material, the fourth downstream roofing material, and so on in the same manner as the second downstream roofing material 2a2, thereby completing the installation of multiple downstream roofing materials 2a.

[0058] Next, the worker places the first upstream roofing material 2b1 on the roof base 10 so that the downstream end of the first upstream roofing material 2b1 overlaps with the upstream end of the first downstream roofing material 2a1. At this time, the worker overlaps the downstream ends of the protruding portion 203 of the lower step 23 and the protruding portion 203 of the middle part 200 of the first upstream roofing material 2b1 with the upstream end of the protruding portion 203 of the middle part 200 of the first downstream roofing material 2a1 and the protruding portion 203 of the upper step 25, respectively. In addition, the worker overlaps the downstream end of one downstream overlapping portion 231A and one main overlapping portion 205 of the first upstream roofing material 2b1 with the upstream end of one main overlapping portion 205 and one upstream overlapping portion 251A of the first downstream roofing material 2a1, respectively.

[0059] Next, the worker places the second upstream roofing material 2b2, shown in Figure 4, onto the roof base 10 so that its downstream end overlaps the upstream end of the second downstream roofing material 2a2. At this time, the worker overlaps the downstream ends of the protruding portion 203 of the lower step 23 and the protruding portion 203 of the main body middle section 200 of the second upstream roofing material 2b2 with the upstream end of the protruding portion 203 of the main body middle section 200 and the protruding portion 203 of the upper step 25 of the second downstream roofing material 2a2, respectively. In addition, the downstream ends of one downstream overlapping portion 231A and one main body overlapping portion 205 of the second upstream roofing material 2b2 overlap with the upstream end of one main body overlapping portion 205 and one upstream overlapping portion 251A of the second downstream roofing material 2a2, respectively. Furthermore, the other overlapping portion 4 of the second upstream roofing material 2b2 is placed over the one overlapping portion 3 of the first upstream roofing material 2b1.

[0060] Next, the worker secures the overlapping portion 3 of the first upstream roofing material 2b1 and the other overlapping portion 4 of the second upstream roofing material 2b2, which is fitted into this overlapping portion 3, to the roof base 10 using fasteners 13. In this case, the overlapping portion 3 of the first upstream roofing material 2b1 and the other overlapping portion 4 of the second upstream roofing material 2b2 are secured to the roof base 10 at multiple points in the direction of flow by fasteners 13.

[0061] Subsequently, the worker installs the third upstream roofing material, the fourth upstream roofing material, and so on, in the same manner as the second upstream roofing material 2b2, thereby completing the installation of multiple roofing materials 2b.

[0062] The order in which the roofing material 2 of this embodiment is installed is not limited. That is, in the installation of the roofing material 2 described above, the roofing material 2 was installed in the order of the first downstream roofing material 2a1, the second downstream roofing material 2a2, the third downstream roofing material, the first upstream roofing material 2b1, the second upstream roofing material 2b2, the third upstream roofing material, etc., but for example, it may also be installed in the order of the first downstream roofing material 2a1, the first upstream roofing material 2b1, the second downstream roofing material 2a2, the second upstream roofing material 2b2, the third downstream roofing material, the third upstream roofing material, etc.

[0063] <ridge wrapping> Figure 6A shows the ridge capping 7. The ridge capping 7 is a member that is positioned to cover the ridge portion 102, the base member 5, the mounting plate 6, and the ridge-side end 29 of the roofing material 2 along the entire length of the roof ridge. The ridge capping 7 comprises a covering piece 71, a fixing piece 72, and a drip edge piece 73.

[0064] The covering piece 71 is positioned to cover the ridge portion 102, the base member 5, the mounting plate 6, and the ridge-side end portion 29 of the roofing material 2. The covering piece 71 has a pair of substantially flat plate portions 711. The pair of flat plate portions 711 are connected at one end, forming a top portion 712. Each of the pair of flat plate portions 711 is formed with a downward slope from the top portion 712 towards the end.

[0065] There are two fixing pieces 72, one at each end of the covering piece 71 in the width direction (a direction perpendicular to the longitudinal direction of the ridge). Each fixing piece 72 is provided projecting almost vertically downward from the end of each flat plate section 711 (the end opposite to the top section 712).

[0066] There are two drainage pieces 73, one of which is provided on each fixing piece 72. Each drainage piece 73 is provided projecting outward (towards the opposite side of the covering piece 71) almost vertically from the lower end of each fixing piece 72.

[0067] The ridge capping 7 has a fixed cross-sectional shape and extends along the entire length of the ridge portion 102 in the longitudinal direction. The ridge capping 7 can be formed by bending a metal sheet similar to that used for the roofing material 2. The cross-sectional shape of the ridge capping 7 is symmetrical with respect to the apex 712 formed approximately in the center in the width direction.

[0068] Furthermore, this embodiment is not limited to ridge capping (double ridge capping), but can also be used for single ridge capping.

[0069] <Base component> Figure 6B shows the base member 5. The base member 5 is used to attach the mounting plate 6 to the roof base 10. The base member 5 has a fixing part 51, a support part 52, and a connecting part 53.

[0070] The fixing portion 51 is the part that is fixed to the roof base 10. The fixing portion 51 is formed in a flat plate shape and is formed to protrude laterally from the lower end of the connecting portion 53, almost perpendicular to the connecting portion 53. The support portion 52 is the part to which the mounting plate 6 is fixed. The support portion 52 is formed in a flat plate shape and is formed to protrude laterally from the upper end of the connecting portion 53, almost perpendicular to the connecting portion 53. The connecting portion 53 is formed in a flat plate shape, with the fixing portion 51 provided at its lower end and the support portion 52 provided at its upper end.

[0071] The base member 5 has a fixed cross-sectional shape and extends along the entire length of the ridge portion 102 in the longitudinal direction. The base member 5 can be formed by bending a metal plate similar to the roofing material 2. The cross-sectional shape of the base member 5 is roughly U-shaped, with the fixing portion 51 and the support portion 52 facing each other across a gap of the height dimension of the connecting portion 53. The protrusion dimension of the fixing portion 51 from the connecting portion 53 is longer than the protrusion dimension of the support portion 52 from the connecting portion 53. Therefore, the base member 5 can be stably fixed onto the roofing substrate 10.

[0072] <Mounting plate> The mounting plate 6 is a component that secures the ridge cap 7. The mounting plate 6 can be made of, for example, a wooden board. The mounting plate 6 is formed in a substantially rectangular cross-section and has a length that extends along the entire length of the ridge portion 102 in the longitudinal direction.

[0073] <Building structure> Figures 1 and 2 show the ridge structure 1 of this embodiment. The ridge structure 1 is constructed by attaching the base member 5 to the roof underlayment 10, then installing the roofing material 2, and subsequently installing the mounting plate 6 and the ridge capping 7 in sequence.

[0074] The base member 5 is positioned along the longitudinal direction of the ridge portion 102 of the roof underlayment 10. The ridge portion 102 is the point where the ridge-side end faces of the two roof sheathing boards 11 that make up the roof underlayment 10 face each other. The upper surface of the roof sheathing boards 11 slopes downward (slopes in the direction of flow) from the ridge portion 102 towards the eaves-side end.

[0075] The base member 5 can be installed on each of the two roof sheathing boards 11. The base member 5 is placed on the underlayment 12 installed on the upper surface of the roof sheathing boards 11. If there is no underlayment 12, the base member 5 is placed directly on the upper surface of the roof sheathing boards 11. The base member 5 is fixed to the roof underlayment 10 by a fixing part 51. In this case, the fixing part 51 is fixed to the roof sheathing boards 11 with fasteners 510 such as screws.

[0076] The base member 5 is positioned so as to open in the direction of flow. That is, the connecting portion 53 of the base member 5 is located closest to the ridge (closest to the ridge portion 102), while the fixing portion 51 and the support portion 52 are located closer to the eaves than the connecting portion 53.

[0077] The connecting portion 53 is preferably positioned on or near a vertical line L passing through the ridge portion 102. In this embodiment, the connection portion (corner) between the connecting portion 53 and the fixing portion 51 of the base member 5 is located on a virtual vertical line L. This ensures that the connecting portion 53 is positioned as close to the ridge portion 102 as possible. Therefore, the ridge-side end 29 of the roofing material 2 can be positioned between the fixing portion 51 and the support portion 52 until it contacts the connecting portion 53. Thus, the dimensions for adjusting the installation position of the roofing material 2 can be increased.

[0078] The connecting portion 53 is positioned near the vertical line L in the area where the base member 5, mounting plate 6, ridge-side end 29, and ridge flashing 9 are covered by the ridge capping 7. When the connecting portion 53 is positioned near the vertical line L passing through the ridge portion 102, the connecting portion 53 can be spaced apart from the vertical line L in the direction of the roof slope by a range greater than 0 mm and less than or equal to 45 mm.

[0079] The two roof sheathing boards 11 are positioned on either side of a vertical line L passing through the ridge 102. The base members 5 fixed to each roof sheathing board 11 are positioned on either side of the vertical line L. These two base members 5 are positioned so that their connecting portions 53 face each other.

[0080] After positioning the base member 5 as described above, multiple roofing materials 2 are placed on the roof underlayment 10. The multiple roofing materials 2 are installed sequentially in the opposite direction to the flow direction (from the eaves side towards the ridge side). The ridge-side end 29 of the roofing material 2 that is positioned closest to the ridge 102 in the flow direction is inserted between the fixing part 51 and the support part 52 of the base member 5 provided on the roof underlayment 10.

[0081] The roofing material 2, positioned closest to the ridge 102, is moved along its longitudinal direction to adjust its installation position in the longitudinal direction. At this time, the ridge-side end 29 of the roofing material 2 moves along its longitudinal direction between the fixing part 51 and the support part 52. That is, the roofing material 2 moves along its longitudinal direction and adjusts its position between a state where the ridge-side end 29 is in contact with the connecting part 53 and a state where the ridge-side end 29 is separated from the connecting part 53 and out of the space between the fixing part 51 and the support part 52 (positioned closer to the eaves than the support part 52). After the position adjustment, the roofing material 2 is fixed to the roof sheathing 11 of the roof base 10 with the fasteners 13.

[0082] The connecting portion 53 of the base member 5 is positioned close to the ridge end 29 (or its ridge end face). That is, the connecting portion 53 may be positioned in contact with the ridge end face of the ridge end 29, or it may be positioned away from the ridge end face of the ridge end 29. When the connecting portion 53 is in contact with the ridge end face of the ridge end 29, the distance between the connecting portion 53 and the ridge end face of the ridge end 29 is 0 mm. When the connecting portion 53 is away from the ridge end face of the ridge end 29, the distance between the connecting portion 53 and the ridge end face of the ridge end 29 is greater than 0 mm and 30 mm or less.

[0083] After arranging multiple roofing materials 2 on the roofing substrate 10 as described above, a waterproofing material 8 is placed. The waterproofing material 8 is a resin gasket-like component that reduces the amount of rainwater that reaches the ridge 102. As the waterproofing material 8, for example, a polyethylene foam called a chemical flashing can be used. The waterproofing material 8 is installed on the roofing material 2 on the eaves side (in the direction of flow) of the fasteners 13. The waterproofing material 8 is installed along the entire length of the ridge in the longitudinal direction.

[0084] After arranging the waterproofing material 8 as described above, the mounting plate 6 is placed. The ridge-side end of the mounting plate 6 is placed on the support portion 52 of the base member 5 and fixed to the support portion 52 with fasteners 520 such as screws. The mounting plate 6 is also placed on the waterproofing material 8 and fixed to the roof sheathing 11 of the roof base 10 with fasteners 521 such as screws.

[0085] After arranging the base members 5, roofing material 2, waterproofing material 8, and mounting plate 6 on the roof underlayment 10 as described above, the ridge capping 7 is attached. The base members 5 are placed on the roof decking 11 on both sides of the vertical line L, and the roofing material 2, waterproofing material 8, and mounting plate 6 are also placed on the roof decking 11 on both sides of the vertical line L. The ridge capping 7 is then positioned to cover the base members 5 on both sides of the vertical line L, the ridge-side ends 29 of the roofing material 2, the waterproofing material 8, and the mounting plate 6 above.

[0086] The top 712 of the ridge capping 7 is located on a vertical line L. Therefore, one flat plate portion 711 of the ridge capping 7 covers the upper part of one of the base members 5, the ridge-side end 29 of the roofing material 2, the waterproofing material 8, and the mounting plate 6 located on either side of the vertical line L, while the other flat plate portion 711 covers the upper part of the other base member 5, the ridge-side end 29 of the roofing material 2, the waterproofing material 8, and the mounting plate 6.

[0087] The ridge capping 7 is attached to both mounting plates 6. One fixing piece 72 of the ridge capping 7 is positioned along the eaves-side end face of one mounting plate 6 (the end face opposite to the end face facing the ridge) and is fixed to the mounting plate 6 with fasteners 61 such as screws. The other fixing piece 72 of the ridge capping 7 is positioned along the eaves-side end face of the other mounting plate 6 and is fixed to the mounting plate 6 with fasteners 61 such as screws. A drip edge 73 provided at the lower end of the fixing piece 72 protrudes in the direction of flow.

[0088] The fastener 61 also secures the ridge flashing 9 to the mounting plate 6. The ridge flashing 9 is a plate-shaped member made of metal or the like, and is installed on the eaves side of the waterproofing material 8. The upper part of the ridge flashing 9 is positioned between the fixing piece 72 and the eaves-side end face of the mounting plate 6 and is fixed to the mounting plate 6 with the fastener 61. The lower end of the ridge flashing 9 is positioned close to the upper surface of the roofing material 2.

[0089] In this embodiment, by using the base member 5, the dimensions for adjusting the installation position of the roofing material 2 can be increased. As shown in the comparative example in Figure 10, a member such as a square timber (base in Patent Document 1) 5x for fixing the mounting plate 6 is provided on the ridge side of the ridge end 29 of the roofing material 2. Therefore, when adjusting the position of the roofing material 2 by moving it along the longitudinal direction, the ridge end 29 of the roofing material 2 hits the member 5x, making it impossible to move it closer to the ridge portion 102 than the member 5x, thus reducing the range of position adjustment for the roofing material 2.

[0090] On the other hand, in this embodiment, the ridge-side end 29 of the roofing material 2 can be inserted between the fixing portion 51 and the support portion 52 of the base member 5, so that the ridge-side end 29 can be moved along the longitudinal direction within the range between the fixing portion 51 and the support portion 52. Therefore, the range of position adjustment of the roofing material 2 is increased. In particular, since the connecting portion 53 is formed of a thin metal plate and the lower end of the connecting portion 53 is located on the vertical line L, it is easier to bring the ridge-side end 29 closer to the ridge portion 102, further increasing the range of position adjustment of the roofing material 2. It is preferable to adjust the position of the roofing material 2 within the range of 0 to 250 mm in the longitudinal direction, and the protrusion dimensions of the fixing portion 51 and the support portion 52 from the connecting portion 53 can be set accordingly.

[0091] In this embodiment, the roofing material 2 positioned closest to the ridge 102 may be cut along the transverse direction to adjust its length in the longitudinal direction. The roofing material 2 shown in Figure 1 is cut at the upper part 25. On the other hand, the roofing material 2 shown in Figure 7 is cut at the middle part 28. When the roofing material 2 has multiple stepped sections 215 in this way, the height of the ridge-side end 29 (dimension from the roof underlayment 10) may change depending on where it is cut.

[0092] Therefore, in this embodiment, the dimensions between the fixing portion 51 and the support portion 52 are set to match the case where the ridge end portion 29 is formed by the stepped portion 25. As a result, even if the stepped portion 25, which is at the highest position, is the ridge end portion 29, it can be inserted between the fixing portion 51 and the support portion 52. Furthermore, even if the ridge end portion 29 is formed by an intermediate portion 28 located at a lower position than the stepped portion 25, it can still be inserted between the fixing portion 51 and the support portion 52.

[0093] Furthermore, since the mounting plate 6 is attached to the base member 5, it can be positioned in a way that is less affected by the stepped portion 215 formed in the roofing material 2.

[0094] Figures 8 and 9 show cases where the roof underlayment 10 has a steeper slope angle compared to Figures 2 and 7. Even when the roof underlayment 10 has a steep slope as shown in Figures 8 and 9, the ridge structure 1 can be formed using base members 5, etc., in the same way as in the cases of gentle slopes shown in Figures 2 and 7.

[0095] (modified version) The embodiments described are merely one of many embodiments of the present disclosure. The embodiments can be modified in various ways depending on the design, etc., as long as they achieve the objectives of the present disclosure.

[0096] Figure 11 shows a modified example of the base member 5. This base member 5 is further equipped with a positioning piece 54 in addition to the one shown in Figure 6B. That is, the base member 5 has a fixing part 51, a support part 52, a connecting part 53, and a positioning piece 54.

[0097] The positioning piece 54 is formed in a flat plate shape and protrudes laterally from the lower end of the connecting portion 53, almost perpendicular to the connecting portion 53. The positioning piece 54 is also formed at approximately the same height as the fixing portion 51 and protrudes from the connecting portion 53 on the opposite side from the fixing portion 51. The positioning piece 54 is provided along the entire length of the base member 5. The base member 5 in Figure 11 is the same as that in Figure 6B, except for the configuration of the positioning piece 54.

[0098] Figure 12 shows a ridge structure 1 using the base member 5 of Figure 11. The base member 5 is provided on the ridge portion 102 of the roof underlayment 10, as in Figure 1. That is, the base member 5 is arranged along the longitudinal direction of the ridge portion 102 of the roof underlayment 10. The base member 5 can be provided on each of the two roof decking boards 11. The base member 5 is placed on the underlayment 12 provided on the upper surface of the roof decking boards 11. The base member 5 is fixed to the roof underlayment 10 by a fixing part 51. The base member 5 may also be fixed to the roof underlayment 10 by a positioning piece 54 with screws or the like. Furthermore, the base member 5 may be fixed to the roof underlayment 10 by both the fixing part 51 and the positioning piece 54 with screws or the like.

[0099] The base member 5 is positioned so as to open in the direction of flow. That is, the connecting portion 53 of the base member 5 is located closest to the ridge (closest to the ridge portion 102), while the fixing portion 51 and the support portion 52 are located closer to the eaves than the connecting portion 53.

[0100] Furthermore, it is preferable that the positioning piece 54 be positioned on or near a vertical line L passing through the ridge portion 102. For example, the tip of the positioning piece 54 is positioned on a virtual vertical line L. This makes it easy to determine the position of the base member 5. In addition, the position of the connecting portion 53 can be moved away from the virtual vertical line L by a dimension equal to or greater than the width dimension of the positioning piece 54 (length in the shorter direction) of the virtual vertical line L.

[0101] After positioning the base member 5 as described above, multiple roofing materials 2 are placed on the roof underlayment 10. The multiple roofing materials 2 are installed sequentially in the opposite direction to the flow direction (from the eaves side towards the ridge side). Similarly, the ridge-side end 29 of the roofing material 2 that is positioned closest to the ridge 102 in the flow direction is inserted between the fixing part 51 and the support part 52 of the base member 5 provided on the roof underlayment 10.

[0102] Then, the roofing material 2 moves along its longitudinal direction and its position is adjusted between a state where the ridge-side end 29 of the roofing material 2 is in contact with the connecting part 53 and a state where the ridge-side end 29 is separated from the connecting part 53 and comes out from between the fixing part 51 and the support part 52.

[0103] In the modified base member 5, both the fixing portion 51 and the positioning piece 54 can be fixed to the roof substrate 10, ensuring stable and secure fastening. Furthermore, since the positioning piece 54 protrudes outward from the connecting portion 53, it is easy to fix with screws or the like.

[0104] (summary) The ridge structure (1) according to the first embodiment comprises a roof base (10), roofing material (2) placed on the roof base (10), a base member (5) placed along the ridge portion (102) of the roof base (10), a mounting plate (6) placed on the base member (5), and a ridge capping (7) fixed to the mounting plate (6). The base member (5) has a fixing portion (51) fixed to the roof base (10), a support portion (52) to which the mounting plate (6) is fixed, and a connecting portion (53) connecting the fixing portion (51) and the support portion (52). The ridge-side end (29) of the roofing material (2) is placed between the fixing portion (51) and the support portion (52). The ridge capping (7) is placed so as to cover the ridge portion (102), the base member (5), the mounting plate (6), and the ridge-side end (29) of the roofing material (2).

[0105] According to this embodiment, since the ridge end (29) of the roofing material (2) is positioned between the fixing part (51) and the support part (52), the installation position of the roofing material (2) can be changed so that the ridge end (29) of the roofing material (2) is located within the range between the fixing part (51) and the support part (52), and the dimensions for adjusting the installation position of the roofing material (2) can be increased.

[0106] The second embodiment is a ridge structure (1) according to the first embodiment, wherein the base member (5) has a connecting portion (53) fixed close to the ridge-side end (29) of the roofing material (2).

[0107] According to this embodiment, the ridge-side end (29) of the roofing material (2) can be covered and protected by the connecting part (53).

[0108] The third embodiment is a ridge structure (1) relating to the first or second embodiment, wherein the roofing material (2) is a metal roofing material having a stepped portion (215) on its upper surface.

[0109] According to this embodiment, since the mounting plate (6) is fixed to the support portion (52) of the base member (5), even if the roofing material (2) has a stepped portion (215), the mounting plate (6) can be installed with minimal influence from the stepped portion (215), improving workability. [Explanation of symbols]

[0110] 1 building structure 2 Roofing materials 5 Base member 6 Mounting plate 7 Building wrapping 10. Roof underlayment 29 End of building 51 Fixed part 52 Support part 53 Connecting part 102 Munebe 215 Stepped section

Claims

1. Roof underlayment and Roofing material placed on the aforementioned roof base, A base member arranged along the ridge of the roof underlayment, A mounting plate placed on the base member, The ridge capping is fixed to the aforementioned mounting plate, and The base member has a fixing portion that is fixed to the roof substrate, a support portion to which the mounting plate is fixed, and a connecting portion that connects the fixing portion and the support portion. The ridge-side end of the roofing material is positioned between the fixing portion and the support portion. The ridge capping is positioned to cover the ridge portion, the base member, the mounting plate, and the ridge-side end of the roofing material. Building structure.

2. The base member is fixed so that the connecting portion is close to the ridge-side end of the roofing material. The building structure according to claim 1.

3. The aforementioned roofing material is a metal roofing material having a stepped portion on its upper surface. The building structure according to claim 1 or 2.

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