JP3577662B2 - roof - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roof in which a plurality of roofing materials are arranged on a roof surface such that a lower portion of an upper roofing material overlaps a surface side of a lower roofing material.
[0002]
[Prior art]
Conventionally, in a roof using a roofing material such as a slate, in order to prevent rainwater or the like from entering the backside of the roofing material, as shown in FIG. Generally, a structure in which no gap is provided in the overlapping portion is adopted. 1 is a roofing material, 7 is a fixing screw for the roofing material, and 8 is a base material.
[0003]
[Problems to be solved by the invention]
In the above-mentioned conventional structure, since the upper end of the back surface of the roofing material 1 is in direct contact with the base material 8, the heat of the roofing material 1 heated by the solar radiation or the like is easily transmitted to the building, and the inside of the building becomes hot during the sunshine. At the same time, since the back space of the roofing material 1 is in a closed state, the heat stored in the building is hardly released to the outside, and there is a problem that the room temperature does not easily decrease even after sunset.
[0004]
In addition, in the conventional structure, even if rainwater does not enter the backside of the roofing material in normal rain, water can enter the backside of the roofing material 1 due to a capillary phenomenon or wind pressure during a storm such as a typhoon. There is. In that case, it takes a considerable time for the infiltrated water to be discharged from the closed space behind the roofing material 1 to the outside, and during that time, the water penetrates into the base material, and the base material 8 rots. Sometimes, it may leak.
[0005]
As described above, the roof of the conventional structure in which the back space of the roofing material is in a closed state has many problems, and effective countermeasures are required. Therefore, the present invention has taken the following countermeasures.
[0006]
[Means for Solving the Problems]
That is, the roof according to the present invention is a roof in which a plurality of roofing materials are arranged on a roof surface such that a lower portion of an upper roofing material overlaps a surface side of a lower roofing material. A plurality of rectangular spacers scattered at regular intervals on the edge of the backside of the roofing material at the overlapping part of the roofing material and the upper roofing material, and the backside space of the roofing material communicates with each other, and It is characterized in that the air layer on the backside of the roofing material forms a space that can be circulated in all directions.
[0007]
With this structure, at the time of normal breeze, air flows into the space behind the roofing material through a certain gap and flows out through another gap, and this air flow causes the roofing material and the building to flow. The stored heat is released to the outside. During a strong wind such as a typhoon, the wind pressure applied to the roof surface is substantially the same, so that no air flow occurs in the space behind the roofing material, and no rainwater enters the space.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 and 2 show an example of a roofing material used for a roof according to the present invention. The roofing material 1 has a rectangular plate shape, and one end portion in the longitudinal direction is cut off in a stepped manner on the surface side to form a right overlap portion 2 having a thickness formed to be half that of the other portion. The portion is a left overlapped portion 3 in which the back side is cut out stepwise and the thickness is formed to be half that of the other portions. A plurality of dot-like spacers 6 are provided on the rear surface at equal intervals along both long sides 4 and 5. The spacer 6 on one long side edge 4 is provided at a position in contact with the edge, and the spacer 6 on the other long side edge 5 is provided at a position slightly inside the edge.
[0009]
3 and 4 show a roof that has been roofed with the roofing material. The roofing method will be described. The roofing material 1 is arranged such that the long side edge 4 is on the upper side, the left overlapping portion 3 overlaps the surface side of the right overlapping portion 2 of the roofing material, and The roofing material 1 is arranged in a staggered manner such that the lower back surface of the upper roofing material 1 overlaps the upper surface of the roofing material 1, and each roofing material 1 is fixed to the base material 8 of the roof with fixing screws 7.
[0010]
In the roof that is roofed as described above, the roofing material 1 is in contact with the base material 8 by the spacer 6 having the long side edge 4, and the communication portion 10 between the roofing material 1 and the base material 8 is provided at the height of the spacer 6. Is formed. Further, the upper roofing material 1 is in contact with the surface side of the lower roofing material 1 with the spacer 6 having the long side edge 5, and a gap 11 corresponding to the height of the spacer 6 is formed between the two roofing materials 1 and 1. It is formed. Thereby, a space 12 communicating with the roof surface 1 along the roof surface is formed on the back side. This space 12 communicates with the outside through the gap 11. The lower part of the lowermost roofing material 1 is supported on the back side by a pillow 13 fixed to the base material 8.
[0011]
Normally, even when the wind is felt outdoors without a wind, a slight wind with a wind speed of about 2 to 3 m is actually blowing. The direction and pressure of this wind are not constant both temporally and temporally. For example, FIG. 5 shows an instantaneous state of the wind hitting the roof. In the figure, the direction of the arrow indicates the wind direction, and the size of the arrow indicates the wind pressure. Outside air enters the space 12 from the gaps 11A and 11B located at the position where the large wind pressure is received, and air in the space 12 exits from the gaps 11D and 11E located at the position where the wind pressure is small. Air does not flow in and out of the gap 11C having no pressure difference between inside and outside.
[0012]
Due to the flow of the air passing through the space 12, the heat of the roofing material 1 heated by the sun or the like is released to the outside. Further, since the roofing material 1 is in contact with the base material 9 via the spacer 6, the heat of the roofing material 1 is not easily transmitted to the building. For these reasons, the rise in room temperature inside the building during sunshine can be suppressed. The flow of air is performed not only during the sunshine but also at night, and the heat stored in the building during the day is rapidly released to the outside after sunset.
[0013]
In a strong wind such as a typhoon, the wind pressure applied to each part of the roof surface is substantially constant as shown in FIG. For this reason, the difference between the inside and outside pressure of each gap 11 becomes the same, and the flow of air through the space 12 does not occur. That is, the space 12 is one independent space that is isolated from the outside. For this reason, even if strong rain is falling on the roof, the rainwater does not permeate into the back side of the roofing material 1, and the base material does not rot or leak. After the rainfall, the moisture in the space 12 is quickly discharged to the outside.
[0014]
【The invention's effect】
As described above, the roof according to the present invention allows air to flow into and out of the space on the back side of the roofing material through the gap formed in the overlapping portion between the lower roofing material and the upper roofing material. The heat of the roofing material and the heat stored in the building are efficiently released to the outside by the flow of heat, so that the temperature inside the building can be suppressed from rising in the summer, etc., and a comfortable indoor environment can be obtained . In addition, rainwater does not enter the space behind the roofing material during a strong wind such as a typhoon, and moisture is quickly discharged from the space behind the roofing material, which is excellent in durability.
[Brief description of the drawings]
FIG. 1 is a (a) front view and (b) a bottom view of a roofing material.
FIG. 2 is a front perspective view of a roofing material.
FIG. 3 is a side sectional view of a roof according to the present invention.
FIG. 4 is a view taken in the direction of arrow A in FIG. 3;
FIG. 5 is a diagram showing the flow of air at the time of light wind.
FIG. 6 is a diagram showing the flow of air during a strong wind.
FIG. 7 is a side sectional view of a roof having a conventional structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roofing material 6 Spacer 8 Fixing screw 10 Communication part 11 Gap 12 Space part

Claims (1)

Overlap of the lower roofing material and the upper roofing material on a roof in which a plurality of roofing materials are arranged on the roof surface so that the lower part of the upper roofing material overlaps the surface side of the lower roofing material Provide a plurality of rectangular spacers scattered at regular intervals on the edge of the back of the roofing material at the part , so that the space on the back side of the roofing material communicates with each other and also communicate with the outdoor space, the back of the roofing material A roof characterized by forming a space in which an air layer can flow in all directions .

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