JPS634107Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a roof in which an air circulation layer is formed.

[Prior art] Conventionally, as shown in Japanese Patent Application Laid-Open No. 53-32920,
Upper and lower inner layer materials are placed above and below the rafters, roofing material is placed on top of the upper inner layer materials, an air circulation layer is formed between the upper and lower inner layer materials, and an air inlet connects the air circulation layer to the atmosphere. A roof was installed on the underside of the eave tips, and the air outlet side of the air distribution layer was communicated with the atmosphere through the ridge ventilation system. The ventilation system has air outlets formed between the ridge side end of the roof and the eaves tip of the ventilation system roof on both sides of the ridge, and these air outlets are provided with air outlets as shown in FIG. As shown in FIG.
The guide plate 41 with the raised portions b was arranged in multiple stages above and below.

[Problems to be solved by the invention] When the conventional roof constructed as described above is applied to a roof with a large area such as a livestock barn, the rafters must be supported on the main building, and metal roofing materials, rafters, etc. Even if an air circulation layer is provided between the upper and lower inner layer materials, the contact surface between the metals becomes large and the sound insulation and heat insulation properties are insufficient. In a ridge ventilation system equipped with guide plates, as shown by the arrows in Figure 14, the wind may pass between the guide plates and cross the ventilation system in an F-shape, or some of the wind may be inside the guide plates. Because it bends vertically, it becomes difficult to send the air in the air circulation layer to the atmosphere, and there is a problem that during windy weather, rainwater may blow into the ventilation system between the guide plates and cause leaks. Ta.

This invention solves the above-mentioned problems, provides good sound insulation and heat insulation even when using metal roofing materials and rafters, and even when there is wind from the ridge ventilation system, the air circulation layer of air can be sent to the atmosphere,
The purpose is to provide a roof that does not leak even during wind and rain.

[Means for Solving the Problems] The roof according to the present invention includes: laying a lower inner layer material on the main roof, supporting metal rafters having a flanged groove-shaped cross section on the lower inner layer material so as to be perpendicular to the main building; Fixing the rafters to the main building, laying and fixing an upper inner layer material on the rafters, and forming an air circulation layer between the lower inner layer material and the upper inner layer material,
A roofing material made of a metal plate is covered over the upper inner layer material, an air inlet that communicates the air circulation layer with the atmosphere is provided on the lower surface of the eave tip, and the air outlet side of the air circulation layer is connected to the ridge ventilation system. This ventilation system is connected to the atmosphere, and the air outlet formed between the ridge end of the roof and the tip of the eaves of the ventilation system roof is equipped with guide plates fixed to the inside and outside of the mounting member in multiple stages above and below. , and each guide plate has a lower vertical part fixed to the mounting member, an inclined part that slopes upward from the upper end of the lower vertical part and extends in a direction away from the mounting member, and a tip of the inclined part. The lower vertical part of the upper guide plate that rises from the top and the upper vertical part whose upper parts overlap in the vertical direction are integrally formed.

[Function] As mentioned above, the roof according to the present invention has upper and lower inner layer materials laid above and below the metal rafters, respectively.
Since the contact between the rafters and the roof materials and the main building is blocked by the upper and lower inner layer materials, there is almost no contact surface between the metals, and therefore the air circulation layer formed between the upper and lower inner layer materials Good thermal and sound insulation properties. Further, according to the present invention, the guide plate provided at the air outlet of the ridge ventilation system is double-layered inside and outside, and the sloped part extends in the direction away from the mounting member with an upward slope. Since the upper vertical part rises and partially overlaps the lower vertical part of the upper guide plate, the wind is guided by the upper vertical part and the inclined part of the outer guide plate, and the wind flows in the direction shown by the solid line arrow in Figure 12. As shown in Figure 12, the flow curves upward and does not blow into the inside of the guide board, so rainwater does not easily enter the inside of the outside guide board during windy weather, and a small amount of rainwater flows inside the outside guide board as shown in Figure 12. Even if the rainwater enters as shown by the broken line arrow, the funnel-shaped cross sections of the inner and outer guide plates allow rainwater to flow downward along the slope and be discharged onto the ridge side edge of the roof. By flowing toward the eaves, rainwater can be prevented from entering the interior from the inside guide plate and leaking from the ventilation system.
By bypassing the ventilation system and flowing upwards as shown by the arrow in Figure 3, the air acts to suck out the air in the air circulation layer from the air outlet on the leeward side, even when there is a strong wind. Good ventilation within the air circulation layer.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 4, FIG. 12, and FIG. 13 show an embodiment of the present invention. In Figures 1 and 2, 1 is C
The main building is made of shaped steel, and a lower inner layer material 2 made of a heat insulating material such as hard wood wool board is laid on top of the main building 1.
On the lower inner layer material 2, a flanged groove-shaped steel plate rafter 3 having a hat-shaped cross section is supported perpendicularly to the main building 1, and the flange portion 3a of the rafter 3 and the lower inner layer material 2
A bolt 4 passing through the main building 1 from above is inserted into the upper side of the main building 1 and protrudes downward, and a nut 5 is tightened on the protruding part.
and rafter 3 are fixed. An upper inner layer material 6 made of a plate-shaped sound absorbing material, a heat insulating material, etc. is supported on the rafters 3, and is laid on the rafters 3 while being fixed by means of adhesives, screws, etc. Lower inner layer material 2 and upper inner layer material 6
An air circulation layer 7 is formed between them. A roofing material 8 made of a long galvanized steel plate is horizontally covered on the upper inner layer material 6, and the roofing material 8 is fixed to the rafters 3 by an appropriate means, and the opposing ends of the roofing material 8 adjacent in the direction of the eaves are engaged. As shown in FIG. 3A or B, a round hole 3c or a round hole 3c and a horizontally elongated hole 3d are formed at intervals along the longitudinal direction in the side wall 3b of the rafter 3.

An air inlet member 9 having a cross-sectional vertical groove shape is fixed to the outside side of the main building 1 at the eave side end, and one side wall 9a of the air inlet member 9 covers the eave side end face of the lower inner layer material 2. The air circulation layer 7 is communicated with the atmosphere through a slit-shaped air inlet 9c formed in the upper base 9b. The eaves member 1 is attached to the other side wall 9d of the air inlet member 9.
0 is fixed, the eave edge member 10 closes the eave tip of the air circulation layer 7 and covers the eave side end surface of the upper inner layer material 6, and the outer surface of the upper end of the eave edge member 10 is covered with the eave tip of the roofing material 8. . Although not shown, the eaves member 1
Both ends of the roof are fixed to the rafters 3, and an air inlet member 9 and an eaves member 10 are provided over the entire left and right sides of the roof.

As shown in FIGS. 1, 4, 12, and 13, a ridge ventilation device 11 is fixed to the ridge side end of the rafter 3, and an air outlet 11a provided in this device 11.
The upper end of the air circulation layer 7 is communicated with the atmosphere. In the ventilation system 11, the lower ends of both side columns 12 are bolted and fixed to the upper part of the rafters 3 via the mounting rods 13, and the ridge rafters 14 are bolted and fixed to the upper ends of the both side columns 12 in parallel with the rafters 3, Ridge rafter 14
The upper end of the stay 15 is fixed to the ridge rafter 14 so that its position can be adjusted using a bolt inserted through an elongated hole 14a provided in the hole 14a and a nut (not shown). It is fastened together with the mounting rod 13 by a bolt. The ventilation system roof plate 16 covers the ridge rafter 14 and connects it to the ridge rafter 1.
4 to form a ventilation system roof.
The upper end of a connecting column 17 is bolted and fixed to the tip of the eave of the ridge rafter 14, and the vertically intermediate portion of the connecting column 17 is fixed to both side columns 12 via a connecting rod 18. An arabesque 19 is fixed to the eave side end of the ridge rafter 14, an upper part of a draining board 20 is interposed between the arabesque 19 and the ridge rafter 14, a lower part of the draining board 20 is fixed to the upper outer surface of the connecting column 17, The upper part of the ventilation system 11 is covered with an arabesque 19 and a draining board 24. The upper ends of the ridge rafters 14 on both sides are connected by a hinge 21, and the roof plates 16 on both sides are connected and fixed above the hinge 21 so as not to leak water. A ridge rising portion 8a of the roofing material 8 is supported and fixed to the lower outer surface of the both side supports 12. A mounting member 23 made of a square pipe is attached to the outer surface of the connecting column 17 via a spacer 22 with bolts,
The lower vertical portions 24a of the inner and outer guide plates 24 are tightened and fixed to the mounting member 23 in multiple upper and lower stages using bolts and nuts. The guide plate 24 is disposed together with the mounting member 23 at the air outlet 11a provided between the ridge end of the roof and the tip of the eave of the ventilation system roof, and extends from the upper end of the lower vertical part 24a to the inclined part. 24b is inclined upward and extends in a direction away from the mounting member 23, and an upper vertical portion 24c rises from the tip of the inclined portion 24b. It overlaps with the lower part of the vertical portion 24a. A rubber sheet 25 fixed to the lower end of the mounting member 23 is pressed onto the roofing material 8. Although not shown, the roof and the left and right end surfaces of the ridge ventilation system are closed by appropriate means.

The roof of one embodiment configured as described above is
An air circulation layer 7 is formed between the upper and lower inner layer materials 6 and 2, and this air circulation layer 7 connects to an air inlet 9c provided on the lower surface of the eaves and an air outlet 11a of the ventilation device 11 provided at the edge of the ridge. Because it is connected to the atmosphere by
When the metal roofing material 8 is heated and the air in the air circulation layer 7 is warmed by sunlight, such as during sunny days when there is little influence of wind in summer, the warmed air flows toward the ridge side. , is released into the atmosphere from the air outlet 11a of the ventilation system 11, and the air passes through the air inlet 9c provided on the lower surface of the eaves and enters the air circulation layer 7.
ventilation is performed by natural convection, which causes air to flow from the eaves to the ridge. Therefore, in this embodiment, the air in the air circulation layer 7 can be kept at a low temperature even during sunny weather in summer, and the temperature inside the building can also be kept low. There are many round holes 3c in the side wall 3b of the rafter 3.
Or, since the round hole 3c and the elongated hole 3d are formed, not only can electrical wiring etc. be easily passed through these, but even if only a part of the roof in the left and right direction is heated by sunlight, Hole 3c, 3d
Since the air flows through the air circulation layer 7 in the left and right directions through the air circulation layer 7, the air circulation layer 7
The heated air can be released from the air outlet 11a on the ridge side.

Furthermore, in this embodiment, the wind blows from the ridge ventilation system 11.
When sprayed on one side, as shown by the solid line arrow in FIG. Instead of being blown into the inside of the ventilation system 11 as shown by the arrow in FIG. The air circulation within the circulation layer 7 is good, and during windy weather, rain does not easily enter the inside of the outside guide plate 24, and even if rain does get inside, the outside and inside areas are blocked as shown by the broken line arrows in Fig. 12. Rainwater flows downward along the slope 24b of the guide plate 24, is guided onto the ridge side end of the roofing material 8, and flows toward the eaves, thereby preventing rain from leaking from the ventilation device 11 portion.

Further, in this embodiment, it is sufficient to add the air inlet member 9 and the ventilation device 11 to the conventional roof of this type.
Since it has a simple structure with few parts to be changed, it can be provided at low cost, and by using sound absorbing materials, heat insulating materials, fireproof materials, etc. for the upper and lower inner layer materials 6 and 2, it has good sound insulation and heat insulation properties. It is excellent. and,
As shown in FIG. 5, even if the roof of this embodiment is used as the roof of the first floor of a building with a partial second floor, the roof of the second floor, which is the upper end of the roof, can be used as shown in FIG. By providing the ventilation device 27 having a configuration in which the ventilation device 27 is half-cut, the ventilation device 27 can be applied not necessarily to the roof of the top floor such as a one-story building or a second floor. Furthermore, the fifth
In the figure, the same reference numerals as in FIGS. 1 to 4 indicate parts corresponding to these parts.

6 to 10 show other embodiments of the present invention. In this embodiment, as shown in FIGS. 6 and 7,
A skylight 28 is arranged within the thickness of the roof.
As shown in FIGS. 6, 7 to 10, the skylight 28 includes a ridge frame 29 made of an extruded metal member or a synthetic resin molded product with a substantially angular cross section;
The eave side frame 30 and the left and right side frames 31 constitute a frame 32 having a rectangular planar shape, and the ridge side side portions of the left and right side frames 31 are butted against the left and right end portions of the ridge side frame 29, and the eave side frame The left and right end surfaces of the frame 30 are abutted against the eave side side portions of the left and right side frames 31, and the abutment portions are respectively fixed. The ridge side frame 29 of the frame body 32 and the left side,
A transparent upper window panel 33 is attached to the inner peripheral side of the peripheral wall portions 29a and 31a of the right side frame 31, and this upper window panel 33
The eave side end portion of the eaves side frame 30 is disposed on the flange portion 30b of the eave side frame 30 so as to closely cover the flange portion 30b. The transparent lower window panel 34 is arranged with a gap 35 below the upper window panel 33.
a, 31a are stretched on the inner circumferential side. Ridge side frame 2
9. Flange portions 29b, 31b of left and right side frames 31
Roofing materials 8 are stacked on top of each other, and eave side frames 3
The engaging end portion 8b of the roof material 8 is inserted between the flange portion 30b of 0 and the upper inner layer material 6. And roof material 8
The upper end of the frame body 32 and the upper window panel 33 are arranged substantially flat, and the gap 35 between the upper and lower window panels 33 and 34 is equal to the thickness of the air circulation layer 7 and the roof, i.e.,
A skylight 28 is disposed within the thickness of the roof, approximately matching the height from the bottom of the lower inner layer material 2 to the roof material 8. The skylights 28 are arranged at several locations on the roof in the left and right direction, as shown in FIG. In addition, engagement ridges 29 formed on the ridge side frame 29, left and right side frames 31
The skylight opening edge of the roofing material 8 is engaged with the upper window panels 33 and 31c, and the space between the upper window panel 33 and the engagement end 8b of the roofing material 8 is sealed with a sealing material 36. The flange portions 30b of the left and right side frames 30 are supported on the rafters 3 via the upper inner layer material 6 and fixed with screws. In FIG. 9, 37 is a panel holder fixed to the eave side frame 30 and supports the lower end of the upper window panel 33; in FIG. 10, 38 and 39 are the upper window panels 3
This is a protective net stretched over the frame 32 so as to cover the upper part of the window panel 3 and the lower part of the lower window panel 34. Furthermore, as shown in FIG. 6, the air circulation layer 7 is communicated with the inside of the building through a communication port 40 provided in the lower inner layer member 2 at the ridge side end of the roof. Note that the configuration of this embodiment other than the above is shown in FIGS. 1 to 4, FIG. 12, and FIG.
Since it is similar to the roof of the embodiment shown in the figure, the same reference numerals are given to the parts in FIGS. 6 to 10 that correspond to those in FIGS. 1 to 4, and the explanation thereof will be omitted.

The structure shown in FIGS. 6 to 10 constructed as above has the above-mentioned effects of the structure shown in FIGS. 1 to 4, and also has a skylight 28 on the roof, which brightens the inside of the building. Can be skylight 2
8 is installed within the thickness of the roof, which gives it a good appearance.Also, since the upper end of the skylight 28 is made almost flat with the roof material 8, the frame of the skylight 28 is 32 etc., snow and dust are less likely to get caught and accumulate. Furthermore, in this embodiment, since the upper end of the air circulation layer 7 is communicated with the inside of the building, the air in the upper part of the building can also be released to the atmosphere from the air outlet 11a through the ventilation device 11, thereby improving the ventilation inside the building. This makes it suitable for use on the roofs of livestock barns.

In this embodiment, as shown in FIG.
The air in the air circulation layer 7 bypasses the skylight 28 and flows from the eaves side to the ridge side, but there are holes 3 in the side walls 3b of the rafters 3.
Since the holes 3c and 3d are provided, the air between the rafters 3 communicates through the holes 3c and 3d, and the flow of air is not obstructed by the rafters 3.

In addition, in this embodiment, the eave side frame 3 of the skylight 28
0. A plurality of communication holes are provided in the peripheral walls 30a, 29a, etc. of the ridge side frame 29, and the upper and lower window panels 33, 34
The gap 35 between them is communicated with the air circulation layer 7, and the skylight 2
The air may be allowed to flow through the gap 35 without bypassing the gap 8.

In the present invention, even with the roofs of the embodiments shown in Figs. 1 to 4, the upper end of the air circulation layer may be communicated with the inside of the building, and asphalt roofing may be laid on the lower inner layer material. preferable. In the present invention, the rafters may be used with the opening facing upward, as shown in FIG. Note that the configuration shown in FIG. 11 other than those described above is the same as that shown in FIG. 2, so parts in FIG. 11 that correspond to those in FIG.

[Effects of the invention] As explained above, the present invention includes laying a lower inner layer material on the main roof, supporting metal rafters with a flanged groove-shaped cross section on the lower inner layer material so as to be orthogonal to the main building, and Fix the rafters to the main building, lay and fix the upper inner layer material on the rafters, form an air circulation layer between the lower inner layer material and the upper inner layer material, and cover the upper inner layer material with roofing material made of metal plates, An air inlet that communicates the air circulation layer with the atmosphere is provided on the lower surface of the eave tip, and the air outlet side of the air circulation layer is communicated with the atmosphere via the ridge ventilation system, so that the air circulation layer is connected to the atmosphere above and below the metal rafters. The upper and lower inner layer materials are laid respectively, and the contact between the rafters, roofing materials, and purlins is blocked by the upper and lower inner layer materials, and there is almost no contact surface between the metals, so that a structure is formed between the upper and lower inner layer materials. Good heat insulation and sound insulation due to the air circulation layer. In addition, in the present invention, the ridge ventilation device installed on the air outlet side of the air circulation layer has an air outlet formed between the ridge side end of the roof and the eaves tip of the ventilation device roof inside the mounting member. , guide plates fixed to the outer surface are arranged in multiple stages above and below, with the inner and outer sides facing each other, and each guide plate is
a lower vertical portion fixed to the mounting member; a sloped portion that slopes upward from the upper end of the lower vertical portion and extends in a direction away from the mounting member; and a lower vertical portion of the upper guide plate that rises from the tip of the sloped portion and extends in the vertical direction Since the upper vertical part and the upper vertical part whose upper parts overlap are integrally formed, the wind is guided by the upper vertical part and the sloped part of the outer guide plate, curves upward, and does not blow into the inside of the guide plate. This makes it difficult for rainwater to enter the inside of the outer guide plate during wind and rain, and even if some rainwater does enter the inside of the outer guide plate, this rainwater is absorbed because the cross sections of the inner and outer guide plates are funnel-shaped. This allows rainwater to drain along the slope onto the ridge end of the roof, preventing rainwater from entering the interior through the inner guide plate and leaking into the ventilation system. By bypassing the upper part, the air in the air circulation layer is sucked out from the air outlet on the leeward side, which has the effect of ensuring good ventilation in the air circulation layer even when there is a wind.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view showing a roof of an embodiment of the present invention, Fig. 2 is a partial sectional front view of the same, and Fig. 3A.
and B are partial side views showing different examples of rafters, FIG. 4 is an explanatory side view of the ventilation system, FIG. 5 is a schematic perspective view showing a modification of the above embodiment, and FIG. Vertical cross-sectional side view showing the roof of another embodiment,
Fig. 7 is a schematic perspective view of the same, Fig. 8 is a schematic perspective view of the frame of the skylight, Fig. 9 is a vertical sectional side view of the skylight section, Fig. 10 is a partial vertical sectional front view of the skylight section, and Fig. 11 Figure 12 is an enlarged partial cross-sectional view for explaining the operation of the ridge ventilation system of the present invention, and Figure 13 shows the flow of wind on the ridge ventilation system. The sectional view shown in FIG. 14 is a partial sectional view for explaining the operation of a conventional ridge ventilation system. 1... Purlin, 2... Lower inner layer material, 3... Metal rafter, 3a... Flange, 6... Upper inner layer material, 7...
... air circulation layer, 8 ... roofing material, 9c ... air inlet, 11 ... ridge ventilation system, 11a ... air outlet, 12 ... pillar, 14 ... ridge rafter, 15 ... ventilation system roof board, 17... Connection column, 23... Mounting member, 24... Guide plate, 24a... Lower vertical part, 24
b... Slanted part, 24c... Upper vertical part.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A lower inner layer material is laid on the main roof, a metal rafter with a flanged groove cross section is supported on the lower inner layer material so as to be orthogonal to the main building, and the rafter is attached to the main building. The upper inner layer material is laid and fixed on the rafters, an air circulation layer is formed between the lower inner layer material and the upper inner layer material, a roofing material made of a metal plate is covered over the upper inner layer material, and the air circulation layer is An air inlet that communicates with the atmosphere is provided at the bottom of the eave tip, and the air outlet side of the air circulation layer is communicated with the atmosphere via a ridge ventilation system. Among the mounting members, attach the air outlet formed between the eave tip of the equipment roof and the
Guide plates fixed to the outer surface are disposed in multiple stages above and below with the inside and outside facing each other, and each guide plate is separated from the mounting member by tilting upward from the lower vertical part fixed to the mounting member and the upper end of the lower vertical part. A roof characterized by integrally forming an inclined part extending in the direction of the inclined part and an upper vertical part rising from the tip of the inclined part and whose upper part overlaps with the lower vertical part of the upper guide plate in the vertical direction. (2) The roof according to claim 1, wherein the lower inner layer material is a hard heat insulating material. (3) The roof according to claim 1 or 2 of the utility model registration claim, wherein the upper inner layer material is a sound absorbing material or a heat insulating material.