JP3623024B2 - Fire prevention structure of building - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire prevention structure for a building having an air passage provided in a gap between a wall material and an exterior material.
[0002]
[Background]
As a wall structure of a building, an outer wall material such as a siding is attached to the outside of a wall material such as a wall panel, and an air passage is provided in a gap between the wall material and the exterior material.
Usually, the exterior material has a plurality of vertical body edges on the back side, and the air passage is formed by gaps between adjacent vertical body edges.
[0003]
[Problems to be solved by the invention]
For example, when a fire occurs in a neighboring house, there is a possibility that a building provided with the air passage may spread through the air passage.
[0004]
Then, an object of this invention is to provide the fire prevention structure of a building effective in fire spread prevention.
[0005]
[Means for Solving the Problems]
Referring to the drawings, as shown in FIG. 2, the first invention of the present invention is a ventilation path provided in a gap between a wall material 17 and an exterior material 18 attached to the wall material 17. has 19, the draining member 29, a fire protection building structure 11 of which one end portion 31 is provided on the lower side of the air passage 19 on to the outer member 18 to be inserted into, before Symbol draining the timber 29, the blowing to the heated closing the air passage 19 are coated high temperature foaming paint 34, the draining member 29, one end portion 31 to be inserted into the air passage 19, one end portion 31 has a bent portion 32 bent through the lower surface side of the exterior member 18 continuously , and the high-temperature foamable paint 34 is formed on a portion of the bent portion 32 facing the lower surface of the exterior member 18. It is characterized by being applied .
[0006]
The fire prevention structure for a building according to a second aspect of the present invention is characterized in that, in the first aspect, the high-temperature foamable coating material 34 is mainly composed of ammonium polyphosphate.
[0007]
In the fire prevention structure for a building according to the third invention of the present invention, in the first or second invention, the exterior material 18 has a plurality of vertical trunk edges 28 on the back side of the face material 27, and the air passage 19. Is formed by a gap between the vertical body edges 28 adjacent to each other of the exterior material 18.
[0009]
In the fire prevention structure for a building according to the fourth invention of the present invention, in any one of the first to third inventions, the draining material 29 is provided below the exterior material 18 in the vicinity of the foundation 14. It is characterized by.
[0010]
As shown in FIG. 5, the fire prevention structure for a building according to a fifth aspect of the present invention is the exterior material according to any one of the first to third aspects, wherein the draining material 37 is located near the roof 36 of the lower house 12. 18 is provided on the lower side.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
With reference to FIGS. 1-4, the fire prevention structure of the building which concerns on 1st Embodiment of this invention is demonstrated.
As shown in FIG. 1, the fire prevention structure of the building 11 according to the present embodiment is provided on the wall 13 of the lower building 12 having the lower building 12.
[0012]
As shown in FIG. 2, the wall 13 is installed on a foundation 14 via a semi-base 15 and a floor panel 16. The wall 13 is configured by attaching an outer wall member 18 to the outside of a wall panel 17 that is a wall member, and a ventilation path 19 is provided in a gap between the wall panel 17 and the outer wall member 18. A waterproof sheet 21 is stretched between the wall panel 17 and the outer wall material 18.
The floor panel 16 has a face material 24 stretched on the upper surface of a joist 23 spanned between beams 22 facing each other.
The wall panel 17 is configured by attaching face materials 26 to the front surface side and the back surface side of a plurality of base materials 25 assembled at a predetermined interval.
[0013]
As shown in FIG. 3, the exterior member 18 has a plurality of vertical body edges 28 attached at equal intervals to the back side of a siding 27 that is a face material. The exterior material 18 is attached to the wall panel 17 via these vertical trunk edges 28. The air passage 19 is formed by a gap between the adjacent vertical trunk edges 28 of the exterior member 18.
[0014]
In such a wall structure, the draining material 29 is provided on the lower side of the exterior material 18 so that one end 31 thereof is inserted into the air passage 19. The draining material 29 includes one end portion 31 inserted into the air passage 19, a bent portion 32 that is continuous with the one end portion 31, passes through the lower surface side of the exterior member 18, and is bent at an obtuse angle with respect to the one end portion 31; The bent portion 32 is continuous with the one end portion 31 and has the other end portion 33 bent in the opposite direction.
[0015]
A high-temperature foaming paint 34 is applied to a portion of the bent portion 32 that faces the lower surface of the siding 27 of the exterior material 18. As shown in FIG. 4, the high-temperature foamable paint 34 is heated and foamed by the flame 20 at the time of fire spreading from a neighbor, and the foam 34A blocks the air passage 19 and performs a fire prevention function. is there. Specifically, the high-temperature foamable coating material 34 is mainly composed of ammonium polyphosphate. As such a high-temperature foamable paint 34, for example, Pyrotect (trade name, manufactured by Denbach, Germany) can be used.
[0016]
The fire prevention structure of the building 11 of this embodiment can be provided as follows.
That is, when the draining material 29 is provided on the lower side of the exterior material 18 so that one end 31 thereof is inserted into the air passage 19, it faces the lower surface of the siding 27 of the exterior material 18 of the bent portion 32. Prepare a part in which high-temperature foaming paint 34 is applied.
[0017]
In the construction of the building 11, when the wall structure is constructed, the wall panel 17 is provided on the semi-base 15 and the floor panel 16 as usual, and then one end portion 31 of the draining material 29 is provided in front of the semi-base 15. To fix.
Next, after attaching the waterproof sheet 21 to the wall panel 17 so as to cover the one end 31 of the draining material 29, the exterior panel 18 is attached to the wall panel 17.
[0018]
According to the fire prevention structure of the building 11 of the above embodiment, as shown in FIG. 4, the high temperature foaming paint 34 applied to the draining material 29 is heated by the flame 20 and foamed during the spread of fire from a neighbor. In addition, the foam 34A can block the air passage 19 and provide a fire prevention function.
[0019]
Further, since the high-temperature foamable paint 34 is applied to the drainage material 29 and the drainage material 29 is provided in the air passage 19 as usual when the building 11 is constructed, the embodiment can be easily implemented. It is.
Further, the high-temperature foamable coating material 34 is economical because it may be applied in a band shape along the portion of the bent portion 32 of the draining material 29 that faces the lower surface of the siding 27.
[0020]
Next, a fire prevention structure for a building according to a second embodiment of the present invention will be described with reference to FIG.
In the case of the first embodiment, the fire prevention structure of the building is provided in the vicinity of the foundation 14 in the wall 13 of the lower house 12, but in this embodiment, the roof of the lower house 12 in the wall 35 on the second floor. 36 is provided in the vicinity.
That is, also in the wall structure of this embodiment, as in the first embodiment, the draining material 37 is inserted into the air passage 19 formed between the wall panel 17 and the outer wall material 18 and one end 38 thereof. .
[0021]
The draining material 37 includes one end portion 38 inserted into the air passage 19, a bent portion 39 that is continuous with the one end portion 38, passes through the lower surface side of the exterior member 18, and is bent at a substantially right angle with respect to the one end portion 38. The bent portion 39 and the other end portion 41 bent on the roof 36 of the lower house 12 are provided. The high-temperature foaming paint 34 is applied to a portion of the bent portion 39 of the draining material 37 facing the lower surface of the siding 27 of the exterior material 18.
Also in this embodiment, the same effect as the first embodiment can be obtained.
[0023]
【The invention's effect】
The fire prevention structure of a building according to the present invention is effective in preventing the spread of fire and is easy to implement.
[Brief description of the drawings]
FIG. 1 is a perspective view of a building provided with a fire prevention structure according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of the fire prevention structure of the first embodiment.
FIG. 3 is a perspective view of an outer wall material according to the first embodiment.
FIG. 4 is a cross-sectional view showing the first embodiment when there is fire spread.
FIG. 5 is a cross-sectional view of a fire prevention structure according to a second embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Building 12 Lower building 13 First-floor wall 14 Foundation 17 Wall panel 18 which is wall material Outer wall material 19 Ventilation path 27 Siding 28 which is face material Vertical trunk edge 29, 37 Drain material 31, 38 One end part 32, 39 Bending part 35 2nd floor wall

Claims (5)

It has a ventilation path provided in the gap between the wall material and the exterior material attached to the wall material,
The water draining material is a fire prevention structure of a building provided at the lower side of the exterior material so that one end thereof is inserted into the air passage,
Before SL draining material, high temperature foaming paint foamed to be heated pressurized closing the vent path are applied,
The draining material has one end inserted into the air passage, and a bent portion that is bent through the lower surface side of the exterior material continuously with the one end.
The fireproof structure for a building, wherein the high-temperature foamable paint is applied to a portion of the bent portion that faces the lower surface of the exterior material . The fireproof structure for a building according to claim 1, wherein the high-temperature foamable paint is mainly composed of ammonium polyphosphate. The exterior material has a plurality of vertical body edges on the back side of a face material, and the air passage is formed by a gap between adjacent vertical body edges of the exterior material. Item 3. A fire prevention structure for a building according to item 1 or 2. The fire prevention structure for a building according to any one of claims 1 to 3, wherein the draining material is provided below the exterior material in the vicinity of the foundation. The fireproof structure for a building according to any one of claims 1 to 3, wherein the draining material is provided under the exterior material in the vicinity of a roof of a lower house.

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