JP2001329668A - Ventilation ridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation ridge capable of sufficiently enduring stormwater blown in by strong wind while securing the sufficient amount of ventilation. SOLUTION: In the ventilation ridge composed of an approximately chevron- like ridge plate member 1 and two throating members 2, a cut-off guard 5 is newly mounted within the throating member 2, and a plurality of air holes 26 are longitudinally drilled at the corner part formed by the front wall 22 and an upper plate 23 of the throating member 2. A drain guide hole 51 is drilled in the base part of the cut-off guard 5 for the purpose of preventing the drilling position of the hole 51 from corresponding to that of a louver-like ventilating opening 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in the structure of a so-called ventilation ridge which is attached to a ridge of a roof in order to provide natural ventilation of a back space of a house.

[0002]

2. Description of the Related Art In a house or the like in which a roof plate is roofed on rafters arranged at predetermined intervals on a purlin, it is mounted so as to cover an opening formed in a roof ridge, and rainwater is provided. Ventilation ridges that have a substantially mountain shape that prevent natural infiltration while preventing intrusion have been widely used in the past due to the situation where lightweight flat slate materials are becoming the mainstream of roofing materials instead of Japanese and Western tiles. A structure with a simple structure has been proposed. For example, JP-A-62-197556, JP-A-62-71210, and JP-A-62-197556
In 2-137946, etc., the ridge opening is covered with a sewage drain board with perforated lower ventilation holes, and further covered with a perforated drain board with upper ventilation holes interposed with spacers. A ventilation building is disclosed in which a ventilation flow path is formed from a lower ventilation hole to an upper ventilation hole.

In Japanese Patent Application Laid-Open No. Hei 9-78782, a ventilation ridge covered with a mountain-shaped ridge plate is provided on a hollow body provided so as to straddle the ridge opening instead of the sewage drain plate. Proposed. In this specification, the ridge center side edge of the hollow body is folded back to the eaves side to form a drain, and the drain is arranged with a gap below a louver-shaped through hole formed in the ridge plate. A second embodiment discloses a ventilation building that guides rainwater blown from a louver-shaped through hole to an eave-side drain port.

[0004]

However, in any of the above ventilation buildings, measures against rainwater blown from the edge of the water drainage plate or the ridge plate due to strong wind or the like have not been sufficient. Moreover, in the latter ventilation building, there was a drawback that the ventilation amount was sacrificed by arranging the drainage near the lower part of the louver-shaped through hole.

[0005] It is an object of the present invention to provide a ventilation building capable of securing a sufficient ventilation volume while preventing the blowing or backflow of rainwater due to a strong wind by improving the conventional ventilation building.

[0006]

According to the present invention, there is provided a ridge plate member provided with a plurality of louver-shaped ventilation openings which are substantially mountain-shaped and open in parallel to the valleys on the left and right inclined planes at predetermined intervals in the longitudinal direction. It consists of two drainers fixed via spacers at approximately symmetrical positions across the roof ridge opening with respect to the left and right inclined surfaces behind the ridge plate member, and covers the roof ridge opening while covering the roof ridge opening. In a conventional ventilation building that enables natural ventilation of a space, the draining member is formed as an inclined surface along a roof plate, a bottom plate having a waterproof packing on the back surface, and a front plate that is erected from an upper edge of the bottom plate. A wall, an upper plate folded in a valley direction from the upper end of the front wall along the back of the ridge plate member, a drainer inclined further downward than the upper plate, and a valley side direction with respect to a lower edge of the drainer. It is composed of a water stop guard standing upright from the bottom plate while ensuring a gap. At the corners of the front wall and the upper plate, a plurality of ventilation holes are formed in the longitudinal direction, while a drainage hole is drilled at the base of the water stop guard, and the drilling position of the drainage hole is changed. The intended problem was solved by preventing the louvered member from being aligned with the louver-shaped ventilation opening in the ridge plate member.

[0007] That is, the reason why water leaks into the back of a hut from a ventilation building that should have been provided with a waterproofing measure against rainwater is that rainwater flows backward from a ventilation port of a ridge plate member due to strong wind or heavy rain. However, in the present invention, a water stop guard not seen in the conventional ventilation ridge is additionally arranged in the drainage member, and further, a drainage guide hole at the base of the water stop guard is provided with a louver-shaped ventilation opening in the ridge plate member. The gap between the ventilation opening of the ridge plate member and the valley-side lower end of the ridge plate member called a goby portion and the drainage member valley-side lower end by being provided between the ventilation opening and the ventilation opening shifted from the drilling position. This prevented rainwater from flowing back.

In addition, as a result of preventing rainwater from flowing back from the ventilation holes and the goby portions of the ridge plate member, it is possible to make more ventilation holes than conventional products. In addition, the ventilation holes at the corners of the drain wall front wall and the upper plate are made large, so that the ventilation rate can be secured more than conventional products.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a ventilation building according to the present invention. FIG. 1 is a sectional view showing a construction state of an example of a ventilation building according to the present invention, FIG. 2 is a perspective view of a ridge plate member in the ventilation building, and FIG.
It is a perspective view of two drainers.

In a general residential house, rafters T are disposed at predetermined intervals in a direction perpendicular to an axis of a long purlin M, and a field board N, an underlaying material F, and a flat roof tile H are stacked on the rafter T in this order. The roof is formed by being laid. A plurality of substantially mountain-shaped ridge plates are continuously provided on the ridge top above the ridge tree M so as to straddle the roof in the longitudinal direction. On the other hand, openings O are arranged at predetermined intervals in the longitudinal direction of the purlin M, and a ventilation ridge K according to the present invention is provided in place of the ridge plate located on the opening O.

The opening O is generally about 850 mm long and about 60 mm wide, and the ventilation building K is generally about 1200 mm long and about 230 mm wide. On the left and right side wall surfaces of the opening O, a pair of drainage drains S are disposed facing each other as necessary. This drainer S is disposed at a position where the upper end thereof slightly protrudes from the upper end edge of the flat roof tile H while covering the upper end faces of the base plate N, the underlaying material F and the flat roof tile H, or as shown in FIG. As described above, it is general that the baseboard N, the underlaying material F, and the flat roof tile H are arranged slightly apart from the upper end surfaces.

The ventilation building K according to the present invention comprises a ridge plate member 1 formed by bending a single steel plate into a substantially mountain shape, and two draining members 2 and 2 fixed to the back side of the ridge plate member 1. It is schematically configured.

The ridge plate member 1 includes ridge plate bodies 11a and 11b that are inclined left and right substantially along the roof gradient, and the ridge plate bodies 11a and 11b.
Side wall portions 12 that are bent substantially vertically downward from the edges, respectively.
a, 12b and flange portions 13a, 13 protruding left and right from the edges of the side wall portions 12a, 12b and having the leading edges folded back.
The ridge plate main body 11a, 11b is provided with a louver-shaped ventilation opening 14 having three through holes 14a to 14c arranged in parallel in the valley direction. Building plate member 1 of this example
In FIG. 2, five ventilation ports 14A to 14E are provided at five locations on one side at predetermined intervals in the longitudinal direction of the ridge plate member 1 in order from the near side.
Are provided, and the ridge plate member 1 as a whole is provided with a total of 10 ventilation ports.

The small circular through-holes located closer to the center of the ridge plate member 1 than the ventilation openings 14A and the through-holes located closer to the center than the ventilation openings 14E are used to fix the ventilation building K to the roof. Mounting holes 15a to 15d for inserting the fixing nails 3 in this embodiment, and are provided at two places on one side, that is, a total of four places. Each mounting hole 15a
15d are ridge plate bodies 11a and 11b by burring
It is formed to protrude annularly on the front side, and the upper end edge of the spacer 4 described later is fitted so as to be in close contact with the inner peripheral surface of the mounting hole 15, thereby preventing water leakage from the mounting hole 15. The distance between the mounting holes 15a and 15b or the distance between the mounting holes 15c and 15d at two locations on one side is determined by the ventilation building K
It is desirable to set so as to match the interval at which the rafters T on the roof are arranged in order to reliably fix the rafters.

Two drainers 2, 2 are fixed symmetrically on the back side of the ridge plate member 1 on the left and right inclined surfaces. As shown in FIGS. 1 and 4, each draining member 2, except for a water stop guard 5, which will be described later, has a bottom plate 21, such as a flat roof tile H, inclined along the roof surface of the house, and an upper end of the bottom plate 21. A front wall 22 erected from the edge, an upper plate 23 folded from the upper end of the front wall 22 along the back surface of the ridge plate member 1 toward the valley side, and a drain portion 24 further inclined downward from the upper plate 23 Are bent from one steel plate.

A water stop guard 5 is erected from the bottom plate 21 inside the draining member 2. As shown in FIGS. 3 and 4, the water stop guard 5 is formed by bending a single strip-shaped steel plate into a substantially L-shape, and is formed by bending the upper edge of the drainer 2 downward. Is secured to the bottom plate 21 by rivet bonding or the like while securing a gap in the valley direction with respect to the lower end edge of the bottom plate 21.

The upper end of the water stop guard 5 is provided with a drainer 2
It is desirable to set so as to protrude above the lower edge of the drainer 24. In addition, the standing position of the water stop guard 5 is set so as to be located on the mountain side with respect to the lower end edge of the ventilation port 14a located closest to the mountain side (ridge core side) in the ridge plate member 1 attached on the draining member 2. It is desirable to set. By setting the standing position of the water stop guard 5 in this manner, backflow of rainwater flowing into the draining member 2 from the louver-like ventilation port 14 is prevented.

As shown in FIG. 3, a plurality of ventilation holes 26 are formed in the corners of the front wall 22 and the upper plate 23 of the drainer 2 in the longitudinal direction. On the other hand, a total of eight drainage guide holes 51A to 51H are formed in the base of the water stop guard 5. The positions of the drainage holes 51A to 51H are set so as not to match the positions of the ventilation holes 14A to 14E in the ridge plate member 1 described above. That is, the drainage hole 51 in the water stop guard 5 is indispensable as a drainage means in case rainwater flows back near the front wall 22 of the draining member 2 beyond the water stop guard 5, but the drainage hole 51 is necessary. Depending on the drilling position of 51, the significance of erection of the water stop guard 5 is impaired, so the drainage holes 51A to 51H are alternately drilled with the ventilation holes 14A to 14E.

In the ventilation building of this embodiment, the drainage holes 51B, 51C and the drainage holes 51F, 51G are set so that they do not coincide with the arrangement positions of the spacers 4. Rain water drained from the drain holes 51B and 51C and the drain holes 51F and 51G infiltrates the roof side from the base of the spacer 4, or the mounting hole (not shown) of the draining member 2 to which the base of the spacer 4 is fitted is caused by rain water. Prevents corrosion.

The two drainers 2, 2 are provided with the spacer 4 at a substantially symmetrical position across the roof ridge opening O with respect to the left and right inclined surfaces of the ridge plate member 1, that is, the back side of the ridge plate main bodies 11a, 11b. Is fixed through. The spacer 4 is made of rubber and has a substantially cylindrical shape provided with a through hole for inserting the fixing nail 3 at its center. The upper end thus formed is inserted into the through hole 15 in the ridge plate bodies 11a and 11b of the ridge plate member 1. The ridge plate member 1 and the two draining members 2, 2 are fixed by spot welding, rivet joining, or the like.

FIG. 5 is an enlarged bottom view of the vicinity of the end of the ventilation building in the example of FIG. As shown in the figure, the reason why the ridge plate member 1 is longer than the two draining members 2 and 2 is that a margin for overlapping with the adjacent ridge plate is secured.

At the center of the ridge plate member 1 (between the two draining members 2 and 2), a dew condensation preventing sheet 6 called a peff is adhered. In particular, when the outside air is cooled during the winter night, the temperature difference between the front and back of the ridge plate member 1 increases, and dew condensation occurs on the back surface of the ridge plate member 1. This is because it is necessary to prevent the water vapor from falling.

Further, the bottom plate 21 of each of the drainers 2, 2 is provided.
A waterproof packing 7 is adhered to the back surface of. The waterproof packing 7 eliminates a gap between each draining member 2 and the flat roof tile H, enhances water sealing properties, and prevents rainwater flowing backward on the flat roof tile surface due to a strong wind or the like from flowing into the gap. In addition, water is prevented from leaking from the roof ridge opening to the back space of the hut. As a material used as the waterproof packing 7, Nitto Denko Corp.
686P (product name).

When the ventilation building is thus installed, the air heated by the sunshine in the back space of the hut rises from the opening O of the roof ridge, and the ventilation holes formed in the upper end of the front wall 22 of the draining member 2. 26, the louver-like ventilation openings 14 of the ridge plate bodies 11a, 11b pass through the gap between the draining section 24 and the water stop guard 5.
More released. On the other hand, rainwater flowing into the draining members 2 and 2 from the louver-shaped ventilation opening 14 is prevented from flowing backward by the presence of the water stop guard 5 and the draining portion 24, while the rainwater flows into the flange portions 13 a and 13 b of the ridge plate member 1. , Drainer 2,
It is discharged from the gap 8 between the flanges 25 in FIG. Since this gap 8 is continuously open in the longitudinal direction of the ventilation building, smooth discharge of rainwater is ensured.

[0025]

In the ventilation building according to the present invention, a water stop guard is newly installed in the draining member, while the position of the ventilation opening is adjusted, so that the louver-shaped ventilation opening in the ridge plate member and the ridge plate member flange are provided. This prevents rainwater from blowing or backflowing due to strong wind from the long slit-shaped opening between the portion and the draining member flange portion.

Also, by adjusting the position of the ventilation opening, the effective ventilation area can be expanded to the maximum, and a sufficient ventilation volume can be secured as compared with the conventional ventilation building.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a construction state of an example of a ventilation building according to the present invention.

FIG. 2 is a perspective view of a ridge plate member in the ventilation building.

FIG. 3 is a perspective view of two draining members in the ventilation building.

FIG. 4 is a partially enlarged view of the vicinity of a drainer in FIG. 1;

FIG. 5 is an enlarged bottom view of the vicinity of the end of the ventilation building of the example of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building plate member 2 Draining member 3 Fixed nail 4 Spacer 5 Waterproof guard 6 Dew condensation prevention sheet 7 Waterproof packing 14 Ventilation opening 15 Mounting hole 21 Bottom plate 22 Front wall 23 Top plate 24 Drain section

Claims (1)

[Claims] 1. A ridge plate member provided with a plurality of louver-shaped ventilation openings which are substantially mountain-shaped and open in parallel to the valley side direction at predetermined intervals in the longitudinal direction, and a back side of the ridge plate member on the left and right inclined surfaces. And two drainers fixed via spacers at approximately symmetrical positions across the roof ridge opening to allow natural ventilation of the hut space while covering the roof ridge opening In the ventilation building, the draining member forms a sloped surface along the roof plate and has a waterproof packing on the back surface, a front wall erected from the upper edge of the bottom plate, and the building from the upper end of the front wall. An upper plate folded in the valley direction along the back surface of the plate member, a draining portion inclined further downward from the upper plate, and an upright standing from the bottom plate while securing a gap in the valley direction with respect to a lower end edge of the draining portion. And a water stop guard installed at the corners of the front wall and the upper plate. In the meantime, a plurality of ventilation holes are formed in the longitudinal direction, and a drainage hole is formed in the base of the water stop guard, and the position of the drainage hole is set to a louver-shaped ventilation hole in the ridge plate member. Ventilation building characterized in that it does not match the drilling position.