JPH06108598A - Ventilating structure of attic and eaves frontal flashing plate therewith - Google Patents

Abstract

PURPOSE:To form an air inlet hole as well as to make it possible to bring a function of attic ventilation into full play without spending any special expenses in addition to no damage to appearance, by separating an interval between a drip part of an eaves flashing plate and a fascia board as far as a proper space. CONSTITUTION:A drip part 19 of an eaves frontal flashing plate 1 is installed at the eaves side, inhaling the outside air from an air inlet hole 23 installed in this eaves side, and the outside air is fed to an air layer 6 in the lower part of a roof board 2, and further air in this air layer 6 is exhausted out of an exhaust hole 8 installed in a ridge line. In this attic ventilating structure, an interval between the drip part 19 of the eaves frontal flashing plate 1 and a fascia board 3 is separated as far as a proper space, thereby forming the air inlet hole 23. In this connection, this space is desirable to be a range of 5 to 50mm or so because if it is too small, ventilation becomes insufficient but if too much, appearance is marred.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attic ventilation structure and an eaves draining board used therefor.

[0002]

2. Description of the Related Art Various ventilation structures for an air layer below a roof have been proposed for the purpose of shielding heat from the roof in summer and preventing dew condensation on the roof in winter. This ventilation structure is shown in FIGS.
As shown in FIG. 2, the air intake hole 23 is generally formed by providing the perforated board 21 on the back of the eaves between the nose cover 3 and the outer wall 12. This intake hole communicates with the air layers 6 and 14 below the base plate 2, and the air layer communicates with an exhaust hole 8 provided on the ridge side. The outside air enters the air layer through the intake hole, and the air in the air layer is exhausted to the outside through the exhaust hole.

[0003]

The conventional ventilation structure has a problem that the intake hole is located behind the eaves adjacent to the outer wall, so that the resistance is increased and it is difficult to perform ventilation. In addition, the perforated board 21 is rarely provided continuously in the direction orthogonal to the drawing, the perforated boards are intermittently provided, and the non-perforated board is provided in a portion where there is no perforated board. However, there was a problem that the construction became complicated because it was necessary to prepare the board. The present invention aims to solve the problems of the prior art.

[0004]

According to the present invention, a water draining portion of an eaves side water draining plate is provided on the eaves side, the outside air is taken in through an intake hole provided on the eaves side, and the outside air is supplied to an air layer below the field plate, and In an attic ventilation structure configured to exhaust air in an air layer from an exhaust hole provided on the side, an attic ventilation structure that forms an intake hole by separating the drainage part of the eaves drainer and the nose cover, And the eaves drainer used for it is provided.

A description will be given below with reference to the drawings. FIG. 1 is a sectional view of an attic ventilation structure of the present invention, and FIG. 2 is a sectional view of another attic ventilation structure of the present invention. In the figure, 1 is an eaves draining plate, 2 is a base plate, 3 is a nose cover, 6 and 14 are air layers, 8 are exhaust holes, 19 is a draining part of the eaves draining plate, and 23 is an intake hole.

As shown in the figure, an attachment portion 16 of the eaves draining board 1 is fixed to the eaves side of the field board. A draining portion 19 is provided so as to be bent downward at a substantially right angle from the mounting portion 16. A nose cover 3 is provided substantially parallel to the water draining part and spaced apart by a predetermined distance, and an intake hole 23 is formed by the water draining part and the nose cover. If the intake hole 23, that is, the distance between the drainage portion and the nose cover, is too small, the resistance becomes large and the ventilation becomes insufficient, which is not preferable. on the other hand,
If this interval is too large, the appearance is impaired, which is not preferable. This distance is preferably in the range of 5 to 50 mm.

The intake holes are formed by the air layers 6, 14 below the roof plate.
The air layer communicates with the exhaust hole 8 provided on the ridge side. The outside air is supplied to the air layer through the intake hole, the air in the air layer is exhausted to the outside through the exhaust hole, and the air layer is ventilated.

The air layer 6 in FIG. 1 is composed of a base plate 2 and a heat insulating material 7 which is provided substantially in parallel with the lower surface of the base plate at a predetermined distance. If the thickness of this air layer, that is, the distance between the lower surface of the base plate and the heat insulating material, is too thin, the resistance becomes too large and the ventilation becomes insufficient, which is not preferable, and if it is too thick, the structure becomes large, which is not preferable. .
The thickness of the air layer 6 is preferably in the range of 5 to 200 mm.

The air layer 14 shown in FIG. 2 is composed of the base plate 2 and the ceiling plate 11, and communicates with the intake holes 23 through the gap of the rafters 15. A roofing material 4 is provided on the upper surface of the base plate 2 with a waterproof paper 5 interposed therebetween. 1
Reference numeral 0 is a floor material, 12 is an outer wall material, and 9 and 13 are interior materials.

As the base plate 2, the thickness of the structural plywood 9 to
Those having a thickness of about 20 mm, or those having a thickness of about 10 to 40 mm, such as a wood wool cement board, a wood chip cement board, and a pearlite cement board used as a fireproof ground board, are preferably used. As the eaves draining plate 1, a zinc iron plate, a colored zinc iron plate, stainless steel, or a cement-based extruded material is generally used.

FIGS. 3, 4, and 5 are sectional views of the eaves draining plate according to the present invention. This eaves-draining plate has an attachment portion 16 to the base plate and a bent portion 17 that is bent substantially at a right angle to the attachment portion 16, and the tip thereof is a draining portion 19. A protrusion 18 that protrudes downward is provided on the lower surface of the mounting portion. This protruding portion contacts the eave-side end surface of the base plate, and serves to maintain the distance between the draining portion and the nasal concealment. Therefore, this protrusion is 5 to 50 m from the bend.
It is provided at the position of m, and the protruding length is 9 to 4
A practical value of 0 mm.

Of these, the one shown in FIG. 3 is an example in which the mounting portion of the eaves draining plate to the base plate and the projecting portion are integrally provided, and extrusion molding typified by aluminum or cement is suitable. Can be used. The one in Figure 4 is
In the example in which the mounting portion of the eaves draining plate to the base plate is bent to form the protrusion, a metal material typified by a zinc iron plate, a colored zinc iron plate, stainless steel, or the like can be preferably used. The one shown in FIG. 5 is an example in which a protrusion is formed by providing a stepped portion on the mounting portion of the eaves draining plate to the field plate, and it can be suitably used for both an extruded product and a metal material.

FIG. 6 is a cross-sectional view of an attic ventilation structure using another eaves draining plate. In this eaves-side draining plate, an insect-proof net 20 having a width of about 5 to 50 mm is previously attached to the draining portion over the entire length of the draining plate.

Materials such as aluminum, zinc iron plate, colored zinc iron plate, and stainless steel are used for the insect net 20.
Metals with through holes with a diameter of 0.5 to 5 mm, meshes, glass wool, filters, etc. that can prevent insects from invading without disturbing the flow of air. If so, the material and shape are not limited to this. As shown in FIG. 6, the insect-proof net 20 of the eaves draining plate is attached so as to hit the nose cover 3 so that the gap between the draining part and the nose cover can be easily and surely secured. In addition, the insect repellent net has an effect of preventing insects from entering the air layers 6 and 14 through the intake holes.

[0015]

According to the attic ventilation structure of the present invention,
Efficient air intake holes can be formed easily and inexpensively and reliably, and in the summer, the heat of the roof surface heated by solar radiation can be exhausted by ventilation, so the temperature of the attic can be reduced. It is possible to keep it low. Also, in winter, the humidity generated indoors can be exhausted by ventilation, which prevents the occurrence of dew condensation on the surface of the base plate and improves the durability of the building. Further, it becomes possible to prevent insects from entering the air layer, which has been a problem in the conventional air intake section.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an attic ventilation structure of the present invention.

FIG. 2 is a cross-sectional view of another attic ventilation structure of the present invention.

FIG. 3 is a sectional view of an eaves draining plate according to the present invention.

FIG. 4 is a sectional view of another eaves draining plate according to the present invention.

FIG. 5 is a sectional view of yet another eaves draining plate according to the present invention.

FIG. 6 is a cross-sectional view of an attic ventilation structure using yet another eaves drainer according to the present invention.

FIG. 7 is a sectional view of a conventional ventilation structure.

FIG. 8 is a cross-sectional view of another conventional ventilation structure.

[Explanation of symbols]

 1: Drain board eaves 2: Field board 3: Nasal cover 4: Roofing material 5: Waterproof paper 6, 14: Air layer 7: Insulation material 8: Exhaust hole 9: Interior material 10: Floor material 11: Ceiling board 12: Outer wall Material 13: Inner wall material 15: Rafter 16: Mounting part 18: Projection part 19: Draining part 20: Insect repellent net 21: Perforated board 23: Intake hole

Claims (2)

[Claims] 1. A water draining portion of the eaves side draining plate is provided on the eaves side, the outside air is taken in from an intake hole provided on the eaves side, the outside air is supplied to the air layer below the field plate, and the exhaust hole is provided on the ridge side. In the attic ventilation structure designed to exhaust the air in the air layer,
An attic ventilation structure that forms an intake hole by separating the water draining portion of the eaves water draining plate from the nose cover. 2. An eaves drainer for use in the attic ventilation structure according to claim 1, comprising an attachment portion fixed to the upper surface of the base plate, and a drainage portion bent downward at substantially right angles to the attachment portion. The eaves draining board, which is made up of and is provided with a protruding portion that protrudes downward in the mounting portion.