JP2013174111A - Roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a roof structure that can secure sufficient air permeability between a sheathing roof board and a roof material.SOLUTION: An irregularity roof material 11 having alternately a protrusion 12 opening downward and protruding upward and a recess 13 opening upward and recessed downward in eaves direction is provided on a sheathing roof board 4. A first ventilation space 17 is formed between the protrusion 12 of the irregularity roof material 11 and the sheathing roof board 4. A functional panel is installed on the plural protrusions 12. A second ventilation space 52 is formed between the functional panel and the recess 13.

Description

  The present invention relates to a roof structure.

  Patent Document 1 discloses a roof structure in which a roof material such as a slate is provided on a base plate of a building.

JP 2002-167927 A

  By the way, in the roof structure shown by patent document 1, the air permeability between a field board and a roofing material is not good.

  This invention is made | formed in view of the said situation, Comprising: It aims at providing the roof structure which can ensure sufficient air permeability between a field board and a roofing material.

  In order to solve the above problems, the roof structure of the present invention is provided with a concave and convex roofing material having alternately a convex portion opening downward and protruding upward and a concave portion opening upward and recessed downward in the eave direction. A first ventilation space is formed between the convex portion of the uneven roof material and the base plate, a functional panel is installed on the plurality of convex portions, and a second ventilation is provided between the functional panel and the concave portion. A space is formed.

  In addition, the uneven roof material is fixed to the upper surface of the inclined base plate, and the wind from the ridge side toward the eave side is passed near the ridge side end of the uneven roof material, and the ridge of the uneven roof material It is preferable that a guiding portion for generating a negative pressure is provided in the vicinity of the side end portion.

  In the present invention, the air permeability between the field board and the uneven roof material can be secured through the air through the first ventilation space. In addition, a functional panel is installed on the plurality of convex portions, and a second ventilation space is formed between the functional panel and the concave portion. For this reason, when air is discharged from the end opening of the second ventilation space, a negative pressure is generated in the vicinity of the end of the first ventilation space, and the negative pressure causes the air to be discharged from the first ventilation space. It can be pulled out. Therefore, air easily flows in the first ventilation space, and the air permeability between the base plate and the uneven roof material can be further improved.

It is a perspective view which shows the roof structure of an example of embodiment of this invention. It is a perspective sectional view showing the eaves side part same as the above. It is a perspective sectional view showing the connection part of the uneven roof material same as the above. It is a perspective sectional view showing the eaves side part of the roof structure same as the above. It is a perspective sectional view of the ridge side part of the roof structure same as the above. It is a perspective sectional view showing the eaves side part of the roof structure of other examples. It is explanatory drawing which shows the roof structure of another example.

  Hereinafter, the present invention will be described with reference to the accompanying drawings. The roof structure of this embodiment is applied to the building 1 having a single-flow roof shown in FIG. In the following, the direction shown by the arrow D1 connecting the eaves and the ridge along the inclined roof surface is the eave building direction, the direction shown by the arrow D2 along the eave is the eave direction, and the direction shown by D3 along the ridge is the ridge direction. explain. In addition, the eaves direction and the ridge direction in this embodiment are parallel.

  As shown in FIG. 4, an eaves portion 2 protruding toward the outdoor side is formed at the upper end portion of the outer wall on the eaves side of the building 1. The surface on the outdoor side (nose plate surface) of the eaves part 2 is inclined so as to be located on the indoor side as it goes downward. In addition, as shown in FIG. 5, a ridge 3 that protrudes toward the outdoor side is formed at the upper end of the outer wall on the ridge side of the building 1. The surface of the ridge 3 on the outdoor side is vertical.

  The roof base of the building 1 is formed by providing a base plate 4 on an architectural frame such as a rafter. The field board 4 is inclined downward at a uniform angle from the building side to the eaves side. As shown in FIG. 4, the eaves side end of the base plate 4 protrudes further to the outdoor side than the eaves 2. The eaves side end face of the base plate 4 is substantially parallel to the outdoor side face of the eaves part 2. As shown in FIG. 5, the ridge side end of the field board 4 is disposed in a position that is reserved on the indoor side of the outdoor side surface of the ridge 3 in the eaves ridge direction.

  As shown in FIG. 4, the first guide plate 5 is placed on the eaves side end portion of the base plate 4 over substantially the entire length in the eave direction. The cover plate 6 is placed on the first guide plate 5 over substantially the entire length in the eave direction. The first guide plate 5 and the cover plate 6 are made of steel plates. The first guide plate 5 and the cover plate 6 may be composed of a plurality of members arranged in the eave direction, or may be formed integrally in the eave direction.

  As shown in FIG. 5, the second guide plate 7 is placed on the upper surface of the end of the base plate 4 on the ridge side over substantially the entire length in the ridge direction (the direction along the ridge). The second guide plate 7 may be composed of a plurality of members arranged side by side in the ridge direction, or may be formed integrally in the ridge direction.

  A plurality of connectors 8 shown in FIG. 3 are arranged on the base plate 4 with an interval in the eave direction (direction along the eaves edge) in plan view. Each connector 8 extends over substantially the entire length of the base plate 4 in the eaves-ridge direction. Each connector 8 is fixed to the base plate 4 using a fixing tool (not shown) such as a bolt. Hooks 10 are formed at the upper portions on both sides of each connector 8.

  As shown in FIG. 1, a plurality of uneven roof materials 11 are placed side by side in the eave direction on the field board 4. Each uneven roof material 11 is made of a steel plate. As shown in FIG. 2, each concavo-convex roof material 11 is alternately formed with convex portions 12 that open downward and project upward and concave portions 13 that open upward and dent downward. The side surface portion of each convex portion 12 also serves as the side surface portion of the adjacent concave portion 13. Both side surface portions of each convex portion 12 are substantially perpendicular to the upper surface portion.

  As shown in FIG. 4, the eaves side portion of each uneven roof material 11 is placed on the field plate 4 via the cover plate 6 and the first guide plate 5. As shown in FIG. 5, the ridge side portion of each uneven roof material 11 is placed on the field plate 4 via the second guide plate 7.

  As shown in FIG. 3, a concave portion 13 is formed at an end portion on the side of the uneven roof material 11 adjacent to each uneven roof material 11. A hooked portion 14 is formed on the upper portion of the outer surface portion of the recess 13. The connector 8 is arrange | positioned between the uneven | corrugated roof materials 11 adjacent as FIG. 3 shows. The hooked portion 14 of each uneven roof material 11 is hooked to the hooking portion 10 of the corresponding connector 8. Thereby, each uneven roof material 11 is fixed to the connector 8. That is, each uneven roof material 11 is fixed to the base plate 4 via the connector 8. Although illustration is omitted, among the plurality of uneven roof materials 11, the uneven roof material 11 disposed at the end portion on the keraba side is fixed to the field board 4 using a fixing means different from the connector 8. ing.

  A cover member 15 that is long in the eaves-ridge direction is attached to each connector 8. Each cover member 15 is formed in a substantially groove shape that opens downward. Engaged portions 16 are formed at lower portions of both side surface portions of each cover member 15. Each cover member 15 is hooked to the hooked portion 14 of the uneven roof material 11 corresponding to the engaged portion 16 on both sides. Thereby, each cover member 15 is attached to the corresponding connector 8 via the uneven roof material 11 on both sides. Each cover member 15 covers the part between the uneven roof materials 11 on both sides, and the connector 8 arranged here from above.

  As shown in FIG. 2, a first ventilation space 17 (hereinafter referred to as a first ventilation space 17) is formed between the base plate 4 and each of the uneven roof materials 11 disposed thereon. Each first ventilation space 17 is a space surrounded by the convex portion 12 and the base plate 4. That is, the same number of the first ventilation spaces 17 as the convex portions 12 are formed in the eave direction. Each first ventilation space 17 is formed in a rectangular shape in a cross section orthogonal to the eaves-ridge direction, and is formed over the entire length of the uneven roof material 11 in the eaves-ridge direction.

  As shown in FIG. 2, the eaves side end of each uneven roofing material 11 is a margin part 18 located on the outdoor side of the eaves side edge of the field board 4 in the eaves ridge direction. The convex part 12 in the protrusion part 18 of each uneven roof material 11, ie, the edge part of the eaves side of each convex part 12, is opened below. The lower openings of the convex portions 12 in the outlet allowance portions 18 are formed in a rectangular shape that is long in the eaves-ridge direction, and constitute an introduction port 19 of the corresponding first ventilation space 17.

  As shown in FIG. 2 or 5, the first guide plate 5, the cover plate 6, and the second guide plate 7 are sandwiched between the corresponding uneven roof material 11 and the field plate 4, and the field plate 4 It is fixed against.

  As shown in FIG. 2, a plate-like first guide portion 20 that protrudes downward along the eaves side end surface of the field plate 4 is formed on the eaves side edge of the first guide plate 5. The first guide portion 20 is formed over the entire length of the first guide plate 5 in the eave direction. The lower end portion of the first guide portion 20 protrudes below the eaves side end face of the field plate 4. The lower part of the protruding portion is bent toward the outdoor side with respect to the upper part that is substantially parallel to the eaves side end face of the field plate 4 and is substantially vertical. The bent portion 21 functions as a drainer. That is, rainwater may adhere to the surface of the first guiding portion 20 on the outdoor side, but this adhered rainwater falls downward from the lower end of the bent portion 21 of the first guiding portion 20. .

  The eaves side portion of the cover plate 6 protrudes toward the outdoor side from the first guide plate 5 in the eave building direction. The projecting portion constitutes a cover portion 22 and is arranged so as to cover the introduction port 19 below the protruding portion 18 of each uneven roof material 11. A large number of intake holes 24 are formed in the portion of the cover portion 22 that overlaps each inlet 19. Thus, by providing the cover portion 22 having a large number of intake holes 24 at the introduction port 19, rainwater, small birds, insects and the like do not easily enter the first ventilation space 17. In this embodiment, the introduction port 19 is covered with the cover portion 22 having the intake holes 24. However, the entire introduction port 19 may be opened as shown in FIG.

  A plate-like edge piece 25 that protrudes downward and is substantially parallel to the first guide portion 20 is formed at the eaves-side end of the cover portion 22 shown in FIG. The surface on the outdoor side of the edge piece 25 is arranged at substantially the same position as the end surface of the eaves-side roof material 11 in the eaves-ridge direction.

  A third guide plate 26 that is substantially orthogonal to the eaves-ridge direction is attached to the eaves-side end of each uneven roof material 11 over the entire length of the uneven roof material 11 in the eave direction. The third guide plate 26 may be composed of a plurality of members arranged side by side in the eave direction, or may be formed integrally in the eave direction.

  The third guide plate 26 includes a third guide portion 27 and a plurality of closed portions 28. The third guide portion 27 is along the outer surface (the surface on the side opposite to the first guide portion 20) of the edge piece portion 25 of the cover plate 6. The lower end portion of the third guide portion 27 protrudes below the edge piece portion 25. The third guide part 27 faces the first guide part 20. A space 29 is formed between the third guide portion 27 and the first guide portion 20 so as to open downward and communicate with the first ventilation space 17 through the intake hole 24.

  A plurality of blocking portions 28 are formed in the third guide portion 27 with an interval in the eave direction. Each blocking part 28 extends a part of the third guide part 27 in the eave direction upward. Each blocking portion 28 is formed in a rectangular shape that is substantially the same shape as the convex portion 12 when viewed from the outdoor side in the eaves-ridge direction. Each closing part 28 is formed with a fitting part 30 protruding toward the ridge side. Each fitting part 30 is fitted inside the corresponding eaves side edge part of the convex part 12. FIG. Thereby, each insertion part 30 is being fixed with respect to the uneven roof material 11. Each closing portion 28 closes the end opening on the eaves side of the corresponding convex portion 12.

  The lower end portion of the third guide portion 27 functions as a drainer. Rainwater adheres to the surface on the outdoor side of the third guide plate 26 directly or from the top surface of the uneven roofing material 11. The rainwater thus attached can be dropped downward from the lower end portion of the third guide portion 27. In the present embodiment, the third guide portion 27 of the third guide plate 26 and the edge piece portion 25 of the cover plate 6 are arranged on the outdoor side of the lower space of the introduction port 19, but as shown in FIG. The guide portion 27 and the edge piece portion 25 may be omitted.

  Outdoor air is introduced into each first ventilation space 17 through the space 29 between the first guide portion 20 and the third guide portion 27 and the intake hole 24 (introduction port 19) in this order. In this case, the air that has entered the space 29 from below rises along the outdoor-side surface of the first guiding portion 20 and the indoor-side surface of the third guiding portion 27, and enters the intake hole 24 (inlet 19). Be guided. The air introduced into the first ventilation space 17 in this way is discharged from the ridge-side end opening (the outlet 32 described later) of the first ventilation space 17. For this reason, the air permeability between the field board 4 and the uneven roofing material 11 can be ensured.

  As shown in FIG. 4, an eaves bowl 31 is provided along the eaves part 2 on the outdoor side of the eaves part 2. The eaves trough 31 is attached to the eaves part 2 via a fixing tool (not shown). The eaves 31 is provided at a position to receive rainwater that has flowed from the upper surface of each uneven roofing material 11 to the outdoor side. The eaves 31 is located below the inlet 19 of each first ventilation space 17, the lower end of the first guide portion 20, and the lower end of the third guide portion 27 of the third guide plate 26. ing. In addition, the lower end part of the 1st guide part 20 is located above the wall part by the side of the indoor side of the eaves wall 31. FIG. Thus, when rainwater enters each first ventilation space 17, rainwater discharged from the intake holes 24 of the cover portion 22 can be received by the eaves 31. In addition, rainwater that has dropped from the lower end of the first guide portion 20 or the lower end of the third guide portion 27 can be received by the eaves 31.

  On the other hand, the ridge side end of each uneven roofing material 11 is disposed at a position that is further on the eaves side than the ridge side end surface of the field board 4 as shown in FIG. The outlet 32 of the first ventilation space 17 is configured by the ridge side end of the convex portion 12 of the uneven roof material 11 and the opening surrounded by the base plate 4. The outlet 32 of each first ventilation space 17 opens toward the ridge on the base plate 4.

  The ridge side portion of the second guide plate 7 protrudes further to the ridge side than the uneven roof material 11. The protruding portion constitutes the second guide portion 33. The ridge side portion of the second guide portion 33 is bent upward, and the bent portion 34 faces the outlet 32 of each first ventilation space 17. The protruding direction of the bent portion 34 is inclined more toward the ridge than the direction orthogonal to the field board 4. For this reason, the air discharged from each first ventilation space 17 is easy to flow to the building side.

  A ridge cover 36 extending in the ridge direction of the field board 4 is attached to the ridge 3. The ridge part cover 36 may be composed of a plurality of members arranged side by side in the ridge direction, or may be formed integrally in the ridge direction.

  The ridge cover 36 is attached to the ridge 3 via a plurality of attachments 37 so that a gap is formed between the ridge 3 and the ridge 3. The ridge cover 36 includes a vertical plate portion 38 that forms an outdoor surface, a horizontal plate portion 39 that forms an upper surface, and a side plate portion 40 (see FIG. 1) that forms a side end surface.

  The horizontal plate portion 39 protrudes from the upper end portion of the vertical plate portion 38 toward the eaves side, and is substantially parallel to the eaves ridge direction. The horizontal plate portion 39 is disposed above the base plate 4, the uneven roof material 11, and the second guide plate 7. A space 41 communicating with each outlet 32 is formed between the horizontal plate portion 39 and the second guide portion 33. A space 42 communicating with the eaves side of the space 41 is formed between the horizontal plate portion 39 and the uneven roof material 11. A projecting piece 43 projecting downward is formed at the eaves side end of the horizontal plate portion 39 over the ridge direction. An opening 44 is formed between the lower end portion of the projecting piece portion 43 and the uneven roof material 11 located on the lower side. The space 42 opens toward the eaves side through the opening 44. That is, the outlet 32 of each first ventilation space 17 communicates with the opening 44 via the space 41 and the space 42 located in the vicinity of the ridge side end of the uneven roof material 11.

  The vertical plate portion 38 is substantially parallel to the outdoor side surface of the ridge portion 3. A space 45 communicating with the space 41 is formed between the vertical plate portion 38 and the ridge portion 3. The space 45 opens downward through a vent 46 formed between the lower end of the vertical plate portion 38 and the ridge 3.

  In each first ventilation space 17, natural convection toward the ridge occurs, so that air in each first ventilation space 17 easily flows from the eaves side toward the ridge side. The air discharged from the outlet 32 of each first ventilation space 17 is normally discharged to the lower side of the ridge cover 36 through the space 41, the space 45, and the ventilation hole 46.

  When the wind blows from the building side to the eaves side (building 1 side) as shown by the arrow a1 in FIG. 5, the air in each first ventilation space 17 becomes difficult to flow from the eaves side to the building side. There is a possibility that the air permeability between the roofing material 11 and the base plate 4 is hindered. However, in this embodiment, when the wind blows from the building side toward the eaves side, the wind hits the outer wall surface on the building side of the building 1 and then the building side of the building 1 as shown by the arrow b1. It rises along the outer wall surface, and is then introduced into the space 45 from the vent 46. The air thus introduced into the space 45 is discharged from the opening 44 through the space 41 and the space 42 in this order. In this case, air passes from the ridge side toward the eaves side in the upper portion of the space 41 located in the vicinity of the ridge side end of the uneven roof material 11, and at this time, in the upper portion of the space 41, each first ventilation space 17. A negative pressure is generated that draws air from. Therefore, even if the wind direction is the direction from the ridge side to the eaves side, it is possible to easily generate a flow from the eave side to the ridge side in each first ventilation space 17. That is, the ridge cover 36 according to the present embodiment allows the wind from the ridge side to the eaves side to pass in the vicinity of the ridge side end of the uneven roof material 11 and induces a negative pressure that draws air from the first ventilation space 17. It functions as a part. Note that the sides of the space 41, the space 42, and the space 45 formed between the ridge cover 36 and the ridge 3 are covered with the side plate 40 of the ridge cover 36.

  In this embodiment, the photovoltaic power generation panel 48 as a functional panel is provided on the roof surface comprised by the some uneven | corrugated roof material 11 as FIG. 1 shows. The solar power generation panel 48 converts solar energy into electric energy and outputs it by a semiconductor element mainly made of silicon. The solar power generation panel 48 may be a double-sided light receiving panel that can receive power from both the upper and lower surfaces and generate power, or a panel that can receive light from only the upper surface and generate power.

  The photovoltaic power generation panel 48 is provided over the plurality of uneven roof materials 11. Specifically, the photovoltaic power generation panel 48 is provided only on the upper part of the roof surface. As shown in FIG. 5, the ridge side end of the photovoltaic power generation panel 48 is disposed in the vicinity of the eaves side end of the horizontal plate portion 39 of the ridge cover 36. The ridge side end face of the photovoltaic power generation panel 48 faces the protruding piece 43 of the ridge cover 36, and an air derivation gap 53 is formed between the protruding piece 43.

  A bolt 49 projecting upward from the cover member 15 as shown in FIG. 3 is provided at an arbitrary position in the longitudinal direction of the arbitrary connecting tool 8 among the connecting tools 8 for connecting the uneven roof materials 11 to each other. ing. The photovoltaic power generation panel 48 is fixed on the roof surface using these bolts 49.

  As shown in FIG. 5, the photovoltaic power generation panel 48 is placed on the upper surfaces of the plurality of convex portions 12 and straddles the plurality of convex portions 12. For this reason, a second ventilation space 52 (hereinafter referred to as a second ventilation space 52) is formed between the photovoltaic power generation panel 48 and the uneven roof material 11 located below the photovoltaic power generation panel 48. The second ventilation space 52 is a space surrounded by the photovoltaic power generation panel 48 and the concave portion 13 of the uneven roof material 11. That is, the same number of the second ventilation spaces 52 as the recesses 13 closed by the solar power generation panel 48 are formed. Each second ventilation space 52 is formed in a rectangular shape in a cross section orthogonal to the eaves-ridge direction. Each second ventilation space 52 is formed over the entire length of the photovoltaic power generation panel 48 in the eaves-ridge direction. As shown in FIG. 1, the end opening 50 on the eaves side of each second ventilation space 52 is located near the center in the eaves ridge direction of the uneven roof material 11. As shown in FIG. 5, the end opening 51 on the ridge side of each second ventilation space 52 is located slightly on the eave side with respect to the lateral plate portion 39 of the ridge cover 36 in the eave ridge direction. The ridge-side end opening 51 of each second ventilation space 52 communicates with the gap 53 and the opening 44.

  The air in each second ventilation space 52 is easy to flow from the eaves side toward the building side. This is because the wind that hits the uneven roofing material 11 inclined downward toward the eaves tends to flow toward the ridge, and natural convection toward the ridge occurs in each second ventilation space 52. For this reason, outdoor air is introduced into each second ventilation space 52 from the end opening 50 on the eaves side, and this air is discharged from the end opening 51 on the ridge side. The air discharged from the ridge-side end opening 51 of each second ventilation space 52 passes through the space 42, the space 41, and the space 45 in the ridge cover 36 in order through the opening 44. Thereafter, the air is discharged from the vent 46 to the lower side of the ridge cover 36. When the air discharged from each second ventilation space 52 passes through the upper part of the space 41 located in the vicinity of the ridge side end of the uneven roofing material 11 toward the ridge side, each first ventilation space is located above the space 41. A negative pressure that draws air from 17 is generated. Accordingly, in each first ventilation space 17, air is more likely to flow from the eaves side toward the ridge side.

  When the wind blows from the ridge side toward the eaves side as described above, the air discharged from each second ventilation space 52 is normally discharged from the ridge portion cover 36 through the opening 44. Along with the air, the air is discharged upward from the gap 53.

  In the roof structure of the present embodiment described above, the uneven roofing material 11 having the convex portions 12 opened downward and projecting upward and the concave portions 13 opened upward and recessed downward is alternately provided on the base plate 4. It has been. And the 1st ventilation space 17 is formed between the convex part 12 of the uneven roof material 11, and the field plate | board 4. For this reason, the air permeability between the base plate 4 and the rugged roofing material 11 can be secured through the air through the first ventilation space 17.

  Further, the photovoltaic power generation panel 48 is installed on the plurality of convex portions 12, and the second ventilation space 52 is formed between the photovoltaic power generation panel 48 and the concave portion 13. For this reason, when air is discharged from the ridge-side end opening 51 serving as the outlet of the second ventilation space 52, a negative pressure is generated in the vicinity of the outlet 32 of the first ventilation space 17. The air can be drawn out from the first ventilation space 17. Therefore, in the first ventilation space 17, air easily flows from the eaves side toward the ridge side, and the air permeability between the field board 4 and the uneven roof material 11 can be further improved.

  Moreover, in this embodiment, the uneven roof material 11 is fixed to the upper surface of the inclined base plate 4. And the ridge part cover 36 (guidance | derivation part) which passes the wind which goes to the eaves side from the ridge side to the ridge side edge part vicinity of the uneven | corrugated roof material 11 and generates the negative pressure which draws air from the 1st ventilation space 17 is provided. ing. For this reason, when the wind toward the eaves side blows from the ridge side, a negative pressure can be generated in the vicinity of the ridge side end portion of the rugged roofing material 11 by the wind guided by the ridge cover 36, Air can be drawn out from the first ventilation space 17. Therefore, in the first ventilation space 17, air easily flows from the eaves side toward the ridge side, and the air permeability between the field board 4 and the uneven roof material 11 can be further improved.

  By the way, the photovoltaic power generation panel 48 has a possibility that the power generation element becomes high temperature and the power generation efficiency (conversion efficiency) is lowered when the ambient temperature is high or when direct sunlight is irradiated for a long time. However, in the present embodiment, the first ventilation space 17 and the second ventilation space 52 are provided below the photovoltaic power generation panel 48 as described above, so that the first ventilation space 17 and the second ventilation space 52 flow. The solar power generation panel 48 is cooled by air, and the temperature rise of the solar power generation panel 48 can be suppressed. Accordingly, a decrease in power generation efficiency of the solar power generation panel 48 can be suppressed.

  In the present embodiment, the functional panel is configured by the photovoltaic power generation panel 48, but may be configured by a panel having other functions. Further, the present invention is applicable not only to a single-flow roof but also to roofs of other shapes such as a gable roof.

  FIG. 7 shows the present invention applied to a building 1 having a gable roof. In this example, an uneven roof material 11 is provided on each of the field boards 4 on both sides of the ridge 3. The photovoltaic power generation panel 48 is provided on the field board 4 on one roof surface side. The ridge cover 36 is provided across the roof surfaces on both sides of the ridge 3.

  In FIG. 7, from one roof surface side (hereinafter referred to as one side) provided with the photovoltaic power generation panel 48 to the roof surface side (hereinafter referred to as the other side) located on the opposite side across the ridge 3. The flow of air when the wind blows is indicated by arrows. In this case, outdoor air is introduced into the gap 55 formed between the ridge cover 36 and the ridge 3 through the space between the one-sided uneven roofing material 11 and the ridge cover 36. This air is discharged from the gap 55 to the other side through the space between the uneven roof material 11 on the other side and the ridge cover 36. At this time, the vicinity of the outlet 32 of the first ventilation space 17 on one side, the end opening 51 on the ridge side of the second ventilation space 52 on one side, and the outlet 32 of the first ventilation space 17 on the other side. Then, negative pressure is generated. And the air which exists in each of the 1st ventilation space 17 of the one side, the 2nd ventilation space 52, and the 1st ventilation space 17 of the other side by this negative pressure is drawn to the ridge side. Accordingly, in each of the first ventilation space 17 on the one side, the second ventilation space 52, and the first ventilation space 17 on the other side, air easily flows from the eaves side toward the building side. Similarly, when the wind blows from the other roof surface side to the one roof surface side, similarly, the outlet 32 of the first ventilation space 17 on the one side and the ridge side end of the second ventilation space 52 on the one side Negative pressure is generated in the vicinity of the opening 51 and the outlet 32 of the first ventilation space 17 on the other side.

  The present invention is not limited to the above-described embodiment, and can be arbitrarily changed and selected as necessary within a range not departing from the gist of the present invention.

4 Field plate 11 Convex roof material 12 Convex part 13 Concave part 17 First ventilation space 36 Building part cover 52 Second ventilation space

Claims (2)

  An uneven roofing material having a convex portion projecting downward and projecting upward and a concave portion opening upward and recessed downward is provided on the base plate, and between the convex portion and the base plate of the concave roof material. A roof structure, wherein a first ventilation space is formed, a functional panel is installed on the plurality of convex portions, and a second ventilation space is formed between the functional panel and the concave portion.   The concavo-convex roofing material is fixed to the upper surface of the sloped base plate, and the wind from the ridge side toward the eaves side is passed near the ridge side end of the concavo-convex roofing material, and the ridge side end of the uneven roofing material The roof structure according to claim 1, further comprising a guide portion that generates a negative pressure in the vicinity of the portion.

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