JPH0734625A - Roof surface ventilation unit - Google Patents

Abstract

PURPOSE:To always perform ventilation at a frame part of a roof surface ventilation unit (roof lighting window) while the waterproof of a roof is ensured. CONSTITUTION:A roof surface ventilation unit 4 comprises an opening frame 5 having a rectangular section, which is fixed to the edge part of an opening of a roof board 1, a ventilation frame 7 fitted to the upper part of the section of the opening frame 5 from above, an upper plate 26 for covering the in-frame opening of the ventilation frame 7 from above, a cover member 9 having a waterproof flange 27 extended downward from the upper plate 26, and a support metal 19 for holding the cover member 9 separately from the ventilation frame 7. A ventilation passage 31 is formed between the corner part 30 formed by the upper plate 26 of the cover member 9 and the waterproof flange 27 and the ventilation frame 7, and a water cut-off part 16 projected to the outside of the frame of the ventilation frame 7 is extended on the outer peripheral part of the ventilation frame 7.

Description

Detailed Description of the Invention

FIELD OF THE INVENTION The present invention relates to a roof ventilation unit.

2. Description of the Related Art A roof lighting window may be provided on a roof surface of a building in order to take in sunlight into the building as much as possible. Conventionally, this roof lighting window is constructed by fixing a wooden frame having a rectangular cross section to the opening edge of the roof plate, and fitting a window frame equipped with a glass window from above onto the upper cross section of the wooden frame. Has been done.

By the way, in the conventional roof daylighting window, since its main purpose is to take in sunlight, its frame portion does not have a function of constantly ventilating the inside of the building. Therefore, it is conceivable to adopt a window frame with ventilation passages such as slits to provide a roof daylighting window with a constant ventilation function, but simply providing a slit in the window frame allows rainwater to enter. However, the waterproofness of the roof will be impaired. The present invention has been made in view of the above circumstances, and an object thereof is to provide a roof surface ventilation unit that can constantly ventilate a frame portion while ensuring waterproofness of the roof.

[Means for Solving the Problems] In order to achieve the above object,
The present invention has taken the following technical means. That is, the roof surface ventilation unit according to the present invention includes an opening frame having a rectangular cross section fixed to an opening edge portion of a roof plate, a ventilation frame fitted from above to a cross section upper portion of the opening frame, and a ventilation frame. An upper plate that covers the opening in the frame from above, a lid member having a waterproof flange that extends downward from the upper plate, and a support metal member that holds the lid member away from the ventilation frame are provided. A ventilation passage is formed between a corner portion constituted by and the ventilation frame, and a water stop portion protruding toward the outside of the ventilation frame is extended to the outer peripheral portion of the ventilation frame.

The function of the ventilation passage formed between the corner portion of the lid member and the ventilation frame is to constantly ventilate the interior of the building. Since the water shut-off portion projects toward the outside of the ventilation frame and divides the ventilation passage into upper and lower parts, wind and rain blown from the lower opening of the ventilation passage is once returned to the outside of the frame to effectively prevent rainwater from entering.

An embodiment of the present invention will be described in detail below with reference to the drawings. In FIGS. 1 and 2, a base plate 1 that serves as a base of a roof of a building is arranged with a gradient in the roof flow direction, and a roof tile is provided on the upper surface of the base plate 1 with a waterproof sheet 2 made of asphalt felt or the like interposed therebetween. 3 is tiled, and the lower surface side of the base plate 1 is supported by rafters (not shown). Each roof tile 3
The plate has a substantially pentagonal shape with a wide width, and is roofed so as to wrap from the eaves side of the base plate 1 toward the ridge side. The roof surface ventilation unit 4 used in this embodiment includes an opening frame 5 fixed to an opening edge of a base plate, a first draining member 6 fitted on the outer periphery of the opening frame 5, and an opening frame 5. A ventilation frame 7 fitted from above to the upper part of the cross section, a second draining member 8 arranged only on the water side of the opening frame 5, and a lid member 9 for covering the opening in the frame of the ventilation frame 7 from above. ing. The opening frame 5 is made of wood having a rectangular cross section, and is fixed to the upper surface of the edge of the opening 10 provided in the base plate 1 directly with nails 11. The outer peripheral side surface and the upper surface of the opening frame 5 are raised from the base plate 1. It is wrapped with the above-mentioned waterproof sheet 2. The first draining member 6 is a frame-shaped assembly of sheet metal members formed by bending the draining portion 12 and the standing plate portion 13 into an L-shaped cross section, and an opening frame in which the standing plate portion 13 is wrapped with the waterproof sheet 2. 5
It is fitted from above the opening frame 5 so as to be in contact with the outer peripheral surface of and is fixed on the base plate 1. The ventilation frame 7 is a frame-shaped assembly of sheet metal members that are bent in a hat shape in cross section. The ventilation frame 7 is integrally provided with an inner mounting plate portion 14 projecting inward of the frame at the lower end of the cross section on the inner peripheral side and outside the frame. An outer mounting plate portion 15 projecting in the direction is integrally provided at the lower end of the cross section on the outer peripheral side.
At the upper end of the cross section of the ventilation frame 7 on the outer peripheral side, a water stop portion 16 protruding in the frame outer direction of the ventilation frame is extended, and on the upper surface of the ventilation frame 7,
A gutter member 17 having a U-shaped cross section is fixed in an upward opening shape. The inside of the ventilation frame 7 is covered with a reinforcing material 18 having a substantially L-shaped cross section. Further, a plurality of support fittings 19 for holding the lid member 9 apart from the ventilation frame 7 are fixed to the ventilation frame 7 at regular intervals. In this embodiment, two support fittings 19 are attached to one side of the ventilation frame 7. The support fitting 18 is formed by bending a strip-shaped steel plate into a U-shape and includes a support plate portion 20 and a pair of inner and outer mounting leg portions 21 and 22, and an inner mounting leg portion 21.
Is attached to the inner surface of the ventilation frame 7 so that the support plate portion 20 is separated from the upper surface of the ventilation frame 7 and the outer mounting legs 22 are separated from the outer periphery of the ventilation frame 7 to the outside of the ventilation frame 7. Has been. The lower end of the outer mounting leg 22 is provided with a bent portion 23 that is bent in a U-shape that opens to the outside of the frame, and the lower piece of this bent portion 23 is the outer mounting plate portion of the ventilation frame 7. 1
It is screwed to 5. An angle member 24 having an L-shaped cross section is fixed to the upper portion of the bent portion 23 with a screw. By connecting the support fittings 18 with the angle member 24, the rigidity of the outer peripheral portion of the ventilation frame 7 is increased. While improving, it prevents rainwater from splashing into the ventilation passage 31 described later. The lid member 9 integrally has an upper plate 26 that covers the opening in the frame of the ventilation frame 7 from above, and a waterproof flange 27 that extends downward from the upper plate 26, and a damping material is provided on the back surface of the upper plate 26. The dew-proof material 28 is attached via the. The lid member 9 has an outer peripheral dimension slightly larger than the ventilation frame 7, the back surface of the upper plate 26 is placed on the support plate portion 20 of the support fitting 19, and the waterproof flange 27 is attached to the outer mounting leg portion of the support fitting 19. The lid member 9 is fixed to the ventilation frame 7 by fastening the screw 29 to the screw 22. Therefore, in the roof surface ventilation unit 4, between the corner portion 30 including the upper plate 26 of the lid member 9 and the waterproof flange 27 and the ventilation frame 7,
A ventilation passage 31 for constantly ventilating the inside and outside of the building is formed along the outer peripheral shape of the ventilation frame 7. In addition, in the present embodiment, the ventilation frame 7 has the water blocking portion 16 projecting toward the outside of the frame, and the ventilation passage 31 is vertically divided by the water blocking portion 16. The blown wind and rain is once returned to the outside of the frame, which effectively prevents the intrusion of rainwater. In this embodiment, the insect net 32 is provided below the water stop portion 16 in the ventilation passage 31, and the insect net 32 is arranged at this portion to prevent rainwater from entering. . The second draining member 8 is a long metal plate that is longer than the width of the opening frame 5 and the ventilation frame 7, and has a damming plate 34 integrally erected from one end in the width direction of the mounting plate 33. The lower part of the ventilation passage 31 is arranged between the double drainer 8 and the first drainer 6. That is, the second draining member 8
Is disposed on the water side of the ventilation frame 7 such that the blocking plate 34 is sandwiched between the waterproof flange 27 of the lid member 9 and the support fitting 19, and at this time, the blocking plate of the second draining member 8 is provided. The reference numeral 34 projects to the left and right sides of the ventilation frame 7. Therefore, even if a large amount of rainwater flows down from the water side of the roof during heavy rain, the rainwater is removed by the second draining member 8 from the ventilation frame 7
Are distributed to the left and right sides of the roof tile 3 and flow down on the roof tile 3 outside the ventilation frame 7. On the other hand, a small amount of water generated by rainwater or dew condensation that has entered around the back side of the second draining member 8 flows down on the first draining member 6 and is discharged downward. 3 to 8 show a construction procedure of the roof surface ventilation unit 4. That is, as shown in FIG. 3, first, the opening frame 5 is fastened to the base plate 1 with the nails 11, and then, as shown in FIG. 4, the opening frame 5 is covered with the waterproof sheet 2. Next, as shown in FIG. 5, when the roof tile 3 is roofed to the water side of the opening frame 5, the first draining member 6 is fitted into the opening frame 5, and then the draining portion 12 of the first draining member 6 is inserted. On roof tile 3
The roof tiles 3 are gradually raised so that the scraps of the roof tiles are placed (Fig. 6). Then, as shown in FIG.
Ventilation frame 7 having 9 is fitted into opening frame 5 and the ventilation frame 7
Is fixed to the opening frame 5 with the nail 35, and then the second draining member 8 is attached to the water side of the ventilation frame 7 (FIG. 8). After that, Figure 2
As shown in FIG. 5, the lid member 9 may be placed on the support fitting 19 of the ventilation frame 7, and the support member 19 may be fixed to the support fitting 19 with the screw 29. In the above-described embodiment, if the central portion of the lid member 9 is opened and the inner mounting plate portion 14 of the ventilation frame 7 is covered with window glass, a roof daylighting window having a constant ventilation function can be obtained. Further, a ventilation fan may be optionally provided on the back side of the lid member 9 by utilizing the inner mounting plate portion 14, and forced ventilation may be performed by the wind force of the fan. Further, although the second draining member 8 is attached to the support fitting 19 in the above-mentioned embodiment, the second draining member 8 may be independently provided on the water side of the lid member 9 within a range that does not impair the waterproof property. Good.

As described above, according to the present invention,
A ventilation passage is provided between the corner of the lid member and the ventilation frame, and the water stop inside this passage effectively prevents rainwater from entering. Ventilation can always be performed in the frame part of the roof surface ventilation unit such as.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a roof ventilation unit on the water side.

FIG. 2 is a perspective view of a roof ventilation unit.

FIG. 3 is an explanatory view of a construction procedure of the roof ventilation unit.

FIG. 4 is an explanatory diagram of the same.

FIG. 5 is an explanatory diagram of the same.

FIG. 6 is an explanatory diagram of the same.

FIG. 7 is an explanatory diagram of the same.

FIG. 8 is an explanatory diagram of the same.

[Explanation of symbols]

 1 Field Board 4 Roof Ventilation Unit 5 Opening Frame 7 Ventilation Frame 9 Lid Member 19 Supporting Metal Fitting 26 Upper Plate 27 Waterproof Flange 30 Corner Part 31 Ventilation Passage

Claims (1)

[Claims] 1. An opening frame (5) having a rectangular cross section fixed to an opening edge of a roof roof plate (1), and a ventilation frame (7) fitted from above to the upper cross section of the opening frame (5). And an upper plate (26) for covering the opening in the frame of the ventilation frame (7) from above and this upper plate (26)
A lid member (9) having a waterproof flange (27) extending downward from the lid member (9) and a support fitting (19) for holding the lid member (9) apart from the ventilation frame (7) are provided. A ventilation passage (31) is formed between a corner portion (30) composed of the upper plate (26) and the waterproof flange (27) and the ventilation frame (7), and protrudes toward the outside of the ventilation frame (7). A roof surface ventilation unit, characterized in that a water blocking part (16) for extending is provided on an outer peripheral part of a ventilation frame (7).