JPS5840185Y2 - attic ventilation system - Google Patents

Description

[Detailed Description of the Invention] This invention particularly relates to a proposal for a ventilation system installed in the roof ridge of a building having a square roof.

Roofing boards due to poor ventilation in the attic of wooden buildings, etc.
2. Description of the Related Art In order to prevent corrosion of roof base materials such as rafters, a ventilation roof section has already been installed above a ventilation passage provided on a building roof, and various proposals have been made.

However, with conventional devices of this type, when strong horizontal wind and rain occur, such as during a rainstorm, rainwater rides on the wind and enters through exhaust holes, ventilation holes, and drainage holes, and enters the attic of the building. It had the disadvantage of dripping.

This idea is related to a structure that prevents rainwater from entering the house even in the case of strong wind and rain as described above, and does not cause any hindrance to ventilation during normal times. This has the effect of improving the appearance of buildings with square roofs such as those described above without damaging their appearance.

Next, an embodiment of this invention shown in the drawings will be described.

First, in the first embodiment shown in FIGS. 1 to 3, 1
1 is a ventilation roof section cut out of an extruded aluminum alloy section, and this ventilation roof section 1 includes a substantially umbrella-shaped top section 2, a side wall section 3 that hangs down from the entire periphery of this top section 2, and and an inner wall part 4 which is located inside the side wall part 3 and whose upper end is fixed to the top plate part 2, and the top plate part 2 is provided with appropriate intervals around the entire circumference as shown in FIG. An exhaust hole 5 is provided in the inner wall portion 4, and a ventilation hole 6 is provided in the upper part of the inner wall portion 4 all around the inner wall portion 4.
A baffle plate 7 is formed to protrude from the top plate 2 around the entire circumference so as to block the space between the ventilation holes 6 and the exhaust hole 5.

In this case, the baffle plate 7 extends below the ventilation hole 6 to cover the ventilation hole 6.

A plurality of drain holes 8 are provided on the lower inner surface of the side wall 3 between the outer periphery of the inner wall 4, and between these drain holes 8 and the ventilation hole 6, the inner wall has a water return hole. A protruding edge 9 is provided.

The lower edge of this inner wall portion 4 is extended laterally to form a skirt portion 10.
is formed, and this skirt portion 10 is attached so that the attic ventilation passage 12 formed in the central ridge portion 11 of the building with a square roof communicates with the inside wall portion 4, and the attachment is carried out in the following manner. In other words, the skirt portion 10 is fixed to the roofing board 13 constituting the square roof via the crosspieces 14 with fastening pieces 15 such as nails.

Note that 16 indicates a roofing material. At this time, a drain groove 17 communicating with the drain hole 8 is formed between the upper surface of the skirt portion 10 and the lower edge of the side wall portion 3.

The appearance of the ventilation system constructed as described above attached to a rectangular roof is as shown in FIG. 3, and can be kept in a well-organized form without spoiling the overall appearance.

Since the upper surface of the top plate part 2 is a place where particularly strong negative pressure is generated, the air in the attic flows from the ventilation passage 12 to the ventilation hole 6 and the exhaust hole 5.
It has an extremely high ventilation effect, and even if rainwater enters through the exhaust hole 5 during rain, it will all be drained out through the drain hole 8, and the rainwater will be carried away by crosswinds. Even if rainwater enters from the drain hole 8, it is blocked by the water return flange 9 and the baffle plate 7, and does not enter the room from the ventilation hole 6.

Next, in the second embodiment shown in FIGS. 4 to 6, the side wall portion 3 has a rectangular cylindrical cross-sectional shape, and therefore the top plate portion 2 has a rectangular shape. In the example, there is no difference in action or effect, so it is the same.
or equivalent parts are given the same reference numerals, and detailed explanations will be omitted.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main parts of the first embodiment, Fig. 2 is a plan view,
FIG. 3 is a perspective view of the entire building, FIG. 4 is a sectional view of essential parts of the second embodiment, FIG. 5 is a plan view, and FIG. 6 is a perspective view of the entire building. In the figure, 1... ventilation roof section, 2...
...Top plate part, 3...Side wall part, 4...
Inner wall part, 5... Exhaust hole, 6... Ventilation hole, 7... Baffle plate, 8... Drain hole,
9... Water return flange, 10... Skirt portion, 11... Ridge portion, 12... Ventilation path.

Claims (1)

[Scope of utility model registration request] An umbrella-shaped top plate part, a side wall part that hangs down from the entire periphery of this top plate part, and an inner wall that is located inside this side wall part and is connected to the ventilation passage in the attic of the building and whose upper end is fixed to the top plate part. A ventilation roof section including a section is attached to the central ridge section of a building having a square roof, an exhaust hole is provided in the top plate section, and a ventilation hole is provided in the upper part of the inner wall section located inward from the exhaust hole. A baffle plate is provided between the exhaust hole and the ventilation hole to cover the ventilation hole, and a baffle plate is provided to protrude downward from the top plate part, and a baffle plate is provided to cover the ventilation hole, and a baffle plate is provided around the entire circumference between the exhaust hole and the ventilation hole. An attic ventilation system that requires a hole.