JPS6143877Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is an attic ventilation section in a two-layer roof that enables ventilation in the attic through the gap between the main roof and the roof root, and also blocks rain from the gap. Regarding the rain closure structure.

Conventionally, ventilation in the attic has been achieved by providing a ventilation opening 3 in the upper part of the gable wall 2 of a gable roof 1, as shown in FIG. 1, for example. Further, as shown in FIG. 2, the modified gambrel roof 4 was also provided with ventilation holes 3 at substantially the same locations as in FIG. 1.

The roofs 1 and 4 having such a structure have the disadvantage that the ventilation openings 3 cannot be made very large, making it difficult to obtain good ventilation.

On the other hand, if the ventilation section is configured to be large, good ventilation can be obtained, but there is a drawback that rainwater tends to enter.

Therefore, in view of the above problems, the present invention aims to ensure good ventilation performance and prevent rainwater from entering.The main feature of this invention is that the top of the main roof has a structure that stands up from the main roof. In a two-layer roof in which a top root is provided through a plurality of installed eave bundles, and the inside of the attic of the main roof is ventilated through a gap between the top root and the main roof, each of the above-mentioned eaves A draining base material is provided over the outside of the bundle, and an L-shaped corner part consisting of the draining base material and the roof surface of the main roof has an upright wall part and a roof side wall part.
A water cutter having a shape is provided, a gable cutter is provided on the outside of the corner of the drain cutter, and a makeup drainer is provided covering the gable cutter and having a rising wall portion and a roof side wall portion,
A brace drainer is provided to close off the eave top between the eaves of the top root and the draining base material, and each standing wall part of the drain drainer and makeup drainer and the standing upper wall part of the brace drainer on the side of the drainer base material. are superposed on each other and are nailed and fixed to the base material of the drainer, and furthermore, at the upper end of the rising wall of the makeup drainer, a brace is provided that extends upward from the rising wall of the brace drainer and is bent outward. A water return part is provided, and the breath drainer is provided with a plurality of ventilation holes on the lower end side of the water gradient.

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in Fig. 3, the two-layer roof according to the present invention is constructed by cutting the top of the main roof 5 with a slope of 4.5 inches horizontally.
On top of this is an overhanging roof 6 with a slope of 6 inches, serving as a roof root. By installing continuous ventilation holes in the gap between the main roof 5 and the soffit of the overhanging roof 6, and providing a ventilation function on all sides, wind blowing from any direction, north, south, east, or west can be smoothly absorbed.・Constructed to allow exhaust.
Further, by appropriately providing ventilation holes in the eaves of the main roof 5, the chimney effect is enhanced and attic ventilation is improved.

The structure of the two-layer roof will be explained with reference to FIGS. 4 to 7. The cut-off periphery of the top of the main roof 5 is a ventilation opening 8 for ventilating the inside of the attic 7, and the main roof 9 at the periphery is A plurality of eave bundles 10 are erected at predetermined intervals, and the lower portions of the rafters 11 of the overhanging roof 6 are supported by the eave bundles 10, respectively. An overhanging roof 6 is supported here with an appropriate distance from the main roof 5. Reference numeral 12 denotes a drainage base material such as lauan plywood, which is provided all around the outside of each eave bundle 10. 1
3 is a drainage drain, which connects the standing wall portion 13a and the roof side wall portion 13.
It is formed to have an L-shaped cross-section with an angle b, and is provided over the outside of the L-shaped corner formed by the drainage base material 12 and the sheathing board 14 of the main roof 5. A roofing material 15 is provided to cover the roof side wall portion 13b of the drainage drain 13. Reference numeral 16 denotes a gable drain cutout, which is provided outside the corner of the upright wall portion 13a and the roof side wall portion 13b of the drain cutter 13, and a cosmetic drainer 17 is provided to cover the gable drain cutout 16. The lotion drainer 17 includes a covering portion 17a that covers the gable drainer 16, a rising wall portion 17b extending upward from the covering portion 17a along the outer surface of the rising wall portion 13a of the draining drainer 13, and a rising wall portion 17b extending from the covering portion 17a upwardly. The roofing material 15 is formed into a substantially L-shaped cross section with a roof side wall portion 17c extending laterally along the upper surface of the roofing material 15. 18 is a roofing, which is interposed between the drainage ditch 13 and the ditching base material 12, and between the roofing material 15 and the shedding board 14. In addition, the roof part of the overhang roof 6 is also covered with roof boards 19,
Roofing 20 and roofing material 21 are being constructed. In order to close the eave top portion 22 between the eaves of the overhanging roof 6 and the draining base material 12, a brace drainer 23 made of punched metal or the like is provided around the entire circumference. The brace drainer 23 is provided with a stepped portion 24 in the middle, an outer portion 25 on the eaves side is lower, an inner portion 26 on the side of the drainer base material 12 is higher, and the outer portion 25 and the inner portion 26 are stepped. A water gradient that slightly descends in the direction of the section 24 is appropriately set. The outer part 25 is fixed to the rafter joints 27 with nails, and the inner part 26 has a raised wall extending upwardly along the outer surface of the raised wall part 17b of the toilet drainer 17 on the inner end side. A wall portion 26a is provided, and each rising wall portion 13 of the drain drainer 13 and the lotion drainer 17 is provided with a wall portion 26a.
A and 17b are overlaid with each other and fixed to the draining base material 12 with nails. Incidentally, after this nailing and fixing, the field board 19 at the eaves end is constructed. Also, located at the lower end side of the water gradient of the outer part 25 and inner part 26 of the breath drainer 23, that is, near the step part 24,
A large number of long ventilation holes 28 are arranged in rows for ventilation.

At the upper end of the rising wall portion 17b of the lotion drainer 17,
A water return portion 29 is provided which extends upward from the upright wall portion 26a of the breath drainer 23 and is bent outward.

Further, an eaves drain 30 is provided at the eaves of the overhanging roof 6.

In addition, each corner of the drain drainer 13, makeup drainer 17, and breath drainer 23 is provided with specially shaped accessories as shown in FIG. 7 to improve workability. On the other hand, ventilation holes leading to the attic 7 are appropriately opened in the eaves of the main roof 5. Further, the ridgepole of the overhanging roof 6 is appropriately supported by a shed bundle erected from the main roof 5.

The embodiment of the present invention is constructed as described above, and as shown in FIGS. 4 and 5, outside air enters the attic 7 through the ventilation hole 28 of the breath drainer 23 on one side, and enters the attic 7 through the ventilation hole on the other side. It is discharged from 28. At this time, since a ventilation opening is provided in the eaves of the main roof 5, the air stagnant in the attic 7 is vented by chimney action from the air flow at the top of the attic 7. It is simultaneously discharged from the ventilation hole 28 of the drainer 23. Since this breath drainer 23 is provided over the entire circumference of the overhanging roof 6, the above-mentioned ventilation effect can be exerted even in all wind directions, and ventilation performance is improved. Additionally, compared to conventional structures, a larger ventilation area can be easily secured, which also improves ventilation performance.

Therefore, air does not stagnate in the attic 7, eliminating the heat in summer and preventing condensation in winter, providing a comfortable living environment. In addition, by filling the attic with heat insulating material 31 as necessary, even more comfortable living conditions can be obtained.

Furthermore, the gap between the main roof 5 and the overhanging roof 6 is covered by a rain cover structure including a drain drain 13, a makeup drain 17, a breath drain 23, etc.
Water that has flowed into the interior through the ventilation hole 28 of the breath drainer 23 is discharged from the ventilation hole 28 again due to the water gradient, thereby preventing rainwater from entering. Also, the water returning part 29
This also prevents rainwater from entering more effectively.

In the above embodiments, a hipped roof is shown, but it may be applied to a hipped roof, etc., and the form of the main roof 5 is not limited to the form of the embodiment.

As described above, the present invention has a rain-closing structure that also has a ventilation function, and despite being able to secure a large ventilation area, it is able to prevent rainwater from entering, and by securing a large ventilation area, it has excellent advantages. It has the advantage of providing excellent ventilation performance, eliminating heat in the summer, and preventing condensation in the winter, providing a comfortable living experience.

[Brief explanation of drawings]

Figures 1 and 2 are perspective views showing conventional examples;
The figure is a perspective view of a house equipped with an embodiment of the present invention, FIG. 4 is an enlarged sectional view of the main parts, and FIG.
FIG. 6 is a perspective view of the main parts showing the construction state, and FIG. 7 is an exploded perspective view of each drainage corner. 5... main roof, 6... overhang roof, 7... attic,
10... Eave bundle, 12... Draining base material, 13... Draining, 13a... Standing wall part, 13b... Roof side wall part, 14... Shedding board, 15... Roofing material, 16...
...Tsumizukiri kiri, 17...Mizukiri, 17b...Rising wall part, 17c...Roof side wall part, 22...Eave top part,
23... Breath drainer, 26a... Standing wall section, 28
...Ventilation hole, 29...Water return section.

Claims (1)

[Scope of utility model registration request] A top root is provided at the top of the main roof via a plurality of eave bundles erected from the main roof, and the attic of the main roof is ventilated through the gap between the top root and the main roof. In such a two-layer roof, a draining base material is provided over the outside of each of the eave bundles, and a rising wall portion and An L-shaped water drainer having a roof side wall part is provided, a gable drain cutter is provided on the outside of a corner of the drain cutter, and a cosmetic drainer has a rising wall part and a roof side wall part covering the gable drain cutter. is provided, and a brace drain is provided to close the eave top part between the eaves of the top root and the draining base material, and each rising wall part of the waste drain and cosmetic drainer and the draining base material side of the brace drainer are provided. The rising wall portions are overlaid with each other and are nailed and fixed to the base material of the drainer, and furthermore, at the upper end of the rising wall portion of the cosmetic drainer, there is provided a wall extending upwardly from the rising wall portion of the breath drainer and extending outwardly. A rain cover structure for an attic ventilation part in a two-layer roof, characterized in that a bent water return part is provided, and the breath drainer is provided with a plurality of ventilation holes on the lower end side of the water slope.