JP2009299410A - Eaves soffit fire-preventive structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an eaves soffit fire-preventive structure capable of increasing the fire-prevention performance at any position. <P>SOLUTION: In this eaves soffit fire-preventive structure, flat plate-like eaves soffit members 4, 4A, 4B formed of a nonflammable material are installed between the exterior wall 1 of a building and fascia members 10, 10A, 10B attached to the eaves edge 3 of the roof 2 of the building. Soft heat insulation materials 6, 6A, 6B are laid down on the upper surfaces of the eaves soffit members 4, 4A, 4B. Consequently, a frame propagation to the rear of the eaves can be surely prevented since the eaves soffit members are left unburned, the heat of the flame is insulated by the heat insulation materials laid down on the upper surfaces of the eaves soffit members, and the temperature at the rear of the eaves is surely prevented from being increased by the heat of the flame. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an eaves fire protection structure.

Conventionally, in the eaves back structure when building a building such as a wooden house in an area where high fire prevention performance is required in the Building Standard Law, for example, as shown in Patent Document 1, Various fire prevention structures, such as using thicker eaves materials, were adopted to improve fire prevention performance.
Moreover, in the technique of patent document 1, the ventilation path is ensured by using an eaves-end fire prevention metal fitting, and ventilation of the eaves back is possible.
JP-A-11-241434

By the way, for example, in a house where one side is close to a neighboring house and the other side faces a large garden or park, even if the protruding dimension of one eave is the same as the protruding dimension of the other eave Fire protection performance may vary. In the case of such a house, one side of the eaves has a fireproof structure, and the other side of the eaves has a normal eaves structure that does not use a fireproof structure, or both sides have a fireproof structure. Must.
However, if the eaves roofing material or the eaves roofing material with a plurality of thicknesses as described above are used, the weight increases accordingly. In some cases, it was necessary to reinforce the eaves back structure, which required time and effort.
Therefore, for example, in a normal eaves back structure that does not employ the fire prevention structure as described above, if necessary, a relatively light heat insulating material is laid on the upper surface of the eaves top material, and so on. There was a request to improve fire prevention performance.

  An object of the present invention is to provide an eave sky fire prevention structure capable of improving the fire prevention performance at an arbitrary location.

  As shown in FIGS. 1 to 3, for example, the invention according to claim 1 hangs between the outer wall 1 of the building and the nose cover members 10, 10 </ b> A, 10 </ b> B provided on the eaves portion 3 of the roof 2 of the building. A flat eave ceiling material 4, 4A, 4B made of non-combustible material is provided as delivered, and soft heat insulating materials 6, 6A, 6B are laid on the upper surface of the eave ceiling material 4, 4A, 4B. It is characterized by being.

  According to the first aspect of the present invention, since the soft heat insulating materials 6, 6A, 6B are laid on the upper surfaces of the flat eave ceiling materials 4, 4A, 4B made of the non-combustible material, for example, the eave ceiling When a fire occurs under the materials 4, 4A, 4B, the eaves ceiling materials 4, 4A, 4B remain without burning and can reliably prevent the spread of the fire to the back of the eaves. Since the heat of the fire is insulated by the heat insulating materials 6, 6A, 6B laid on the upper surface of 4A, 4B, and the heat of the fire can surely prevent the temperature of the eaves from becoming high, It becomes possible to improve the fireproof performance in the vicinity of the eaves top members 4, 4A, 4B. That is, by laying the heat insulating materials 6, 6 </ b> A, 6 </ b> B on the top surfaces of the eaves ceiling materials 4, 4 </ b> A, 4 </ b> B, it becomes possible to improve the fireproof performance at any location. Easily and reliably even if the required fireproof performance differs between the eaves on one side of the building and the other side of the building, such as a house that faces a large garden or park in close proximity It can correspond to.

The invention according to claim 2 is, for example, as shown in FIG. 1 and FIG.
The nasal concealment members 10 and 10B are provided near the lower portions of the nasal concealment members 10 and 10B, and have ventilation portions 11 and 11B having ventilation paths 11a and 11Ba that communicate the outside and the back of the eaves. , 11B and partition portions 12, 12B rising between the air passages 11a, 11Ba and the eaves-end side ends of the heat insulating materials 6, 6B.

  According to the second aspect of the present invention, the nasal concealment members 10 and 10B are provided in the vicinity of the lower portions of the nasal concealment members 10 and 10B and have air passages 11a and 11Ba that communicate the outside with the back of the eaves. Ventilation portions 11 and 11B and partition portions 12 and 12B that are integrally formed with the ventilation portions 11 and 11B and rise between the ventilation passages 11a and 11Ba and the eaves-end side ends of the heat insulating materials 6 and 6B. Since it has, it can prevent reliably that the said ventilation paths 11a and 11Ba are obstruct | occluded by the eaves side edge part of the said heat insulating materials 6 and 6B by this partition part 12 and 12B. Thereby, ventilation to the back of the eaves can be secured through the ventilation paths 11a and 11Ba.

The invention according to claim 3 is, for example, as shown in FIG.
The outer wall 1 is provided with a support member 20 that supports the outer wall side end portion of the eaves ceiling material 4A.
The support member 20 includes an air passage 21 that communicates the outside and the back of the eaves, and a partition portion 22 that rises between the air passage 21 and the outer wall side end of the heat insulating material 6A. To do.

  According to the third aspect of the present invention, the support member 20 includes a ventilation path 21 that communicates the outside and the back of the eaves, and a partition that rises between the ventilation path 21 and the outer wall side end of the heat insulating material 6A. Since the part 22 is provided, the partition part 22 can reliably prevent the air passage 21 from being blocked by the outer wall side end of the heat insulating material 6A. Thereby, ventilation to the back of the eaves can be ensured through the ventilation path 21.

The invention according to claim 4 is, for example, as shown in FIGS. 1 to 3, in the eaves fire prevention structure according to claim 2 or 3,
At the upper ends of the partition parts 12, 22, 12B, pressing parts 13, 23 for pressing the ends of the heat insulating materials 6, 6A, 6B by projecting upward from the eaves ceiling materials 4, 4A, 4B. , 13B are provided integrally.

  According to the invention described in claim 4, the upper end portions of the partition portions 12, 22, 12 </ b> B protrude toward the upper side of the eaves ceiling members 4, 4 </ b> A, 4 </ b> B, thereby the heat insulating materials 6, 6 </ b> A, Since the pressing portions 13, 23, and 13B for pressing the end portions of 6B are provided integrally, the heat insulating materials 6, 6A, and 6B are pressed by the pressing portions 13, 23, and 13B, thereby the heat insulation. The materials 6, 6 </ b> A, 6 </ b> B can be surely placed between the outer wall 1 of the building and the nose masking members 10, 10 </ b> A, 10 </ b> B provided on the eaves part 3 of the roof 2 of the building. Thereby, it can prevent more reliably that the said ventilation paths 11a, 21, and 11Ba are obstruct | occluded by the edge part of the said heat insulating materials 6, 6A, 6B.

The invention according to claim 5 is, for example, as shown in FIGS. 1 to 3, in the eaves fire prevention structure according to any one of claims 2 to 4,
The air passages 11a, 21, and 11Ba are provided with a fire-proof foam material 7 that closes the air passages 11a, 21, and 11Ba by foaming in the event of a fire.

  According to the fifth aspect of the present invention, a fireproof foam material 7 is provided in the air passages 11a, 21, and 11Ba so as to block the air passages 11a, 21, and 11Ba by foaming in the event of a fire. Therefore, in the event of a fire, the fireproof foam material 7 will block the air passages 11a, 21, and 11Ba, and reliably prevent the air passages 11a, 21, and 11Ba from spreading to the back of the eaves. Since it can do, it becomes possible to improve the fire-proof performance of the eaves top materials 4, 4A, 4B vicinity.

The invention according to claim 6 is, for example, as shown in FIG. 3, in the eaves fire prevention structure according to any one of claims 1 to 5,
The heat insulating material 6B is sandwiched between the eave roof material 4B and the eave sky field edge 5B fixed to the building frame.

  According to invention of Claim 6, since the said heat insulating material 6B is pinched | interposed between the said eaves ceiling material 4B and the eaves field edge 5B fixed to a building frame, the said heat insulating material 6B It can be surely prevented from turning over or floating, and can be securely placed on the eaves top 4B.

  According to the present invention, since the soft heat insulating material is laid on the upper surface of the flat eave ceiling material made of incombustible material, for example, when a fire occurs below the eave ceiling material, the eave ceiling material does not burn. It is possible to reliably prevent the spread of fire to the back of the eaves and to insulate the heat of the fire with the heat insulating material laid on the top surface of the eaves top, and the heat of the fire raises the temperature of the back of the eaves. Since this can be reliably prevented, it is possible to improve the fire prevention performance near the eaves. That is, by laying the heat insulating material on the top surface of the eaves ceiling, it becomes possible to improve the fire performance of an arbitrary location, for example, one is close to the neighbor and the other faces a large garden or park Even when the required fire prevention performance differs between the eaves on one side and the eaves on the other side of a building such as a house, it is possible to easily and surely cope with it.

  Embodiments of the present invention will be described below with reference to the drawings. The building of the present embodiment is constructed by a panel method in which building components such as walls, floors, and roofs are panelized in advance in the factory, and these panels are assembled and constructed at the construction site. This can also be applied to buildings such as wooden structures, steel structures, and reinforced concrete structures.

  In addition, this panel is a vertical frame and horizontal frame are assembled into a rectangular shape, and auxiliary frames are assembled vertically and horizontally inside a rectangular frame to form a frame, and a surface material is formed on both sides or one side of the frame. Is affixed and has an internal hollow structure. Furthermore, a heat insulating material such as glass wool or rock wool is usually loaded into the hollow interior portion.

(First embodiment)
As shown in FIG. 1, the eaves fire prevention structure of the present embodiment is nonflammable so as to be bridged between the outer wall 1 of the building and the nose cover member 10 provided on the eaves tip 3 of the roof 2 of the building. A flat eave ceiling material 4 made of a material is provided, and a soft heat insulating material 6 is laid on the upper surface of the eave ceiling material 4.

Here, the outer wall 1 is an outer wall panel 1, and the outer wall panel 1 is configured by a vertical and horizontal frame material 1 a and auxiliary bars (not shown), and a frame material 1 b is formed on both sides of the frame body. A siding material 1c is attached to the outer surface of the outer wall 1 which is pasted and is located below the eave roof material 4.
In addition, a slope adjusting member 1 d adjusted according to the slope of the roof 2 provided on the upper portion of the outer wall panel 1 is provided at the upper end portion of the outer wall panel 1.

The roof 2 is a roof panel 2, and the roof panel 2 is configured by a vertical and horizontal frame material 2 a and an auxiliary crosspiece (not shown), and a face material 2 b is pasted on the upper surface of the frame. It was established. Further, a plurality of roofing materials 2 c are sown on the upper surface of the roof panel 2.
The roof panel 2 is placed on the upper part of the gradient adjusting material 1d at the upper end of the outer wall panel 1.

  In addition, among the eaves 2a constituting the roof panel 2 of the present embodiment, the eaves 2a located at the lower end in the gradient direction of the roof panel 2 is shorter in height than the other eaves 2a. Thus, an air passage 11a described later can be secured.

  Furthermore, the eaves edge part 3 of the roof 2, that is, the eaves edge side end surface of the eaves 2a located at the lower end in the gradient direction of the roof panel 2, is provided with a gradient adjusting material 3a adjusted so that the eave edge side end surface becomes a vertical surface. A rain gutter member 3b is provided on the vertical surface of the gradient adjusting member 3a via the nose cover member 10.

  The flat plate eaves 4 is made of a non-combustible material. Examples of the non-combustible material include hard wood cement board, wood fiber mixed cement / calcium silicate board, fiber reinforced cement board, fiber mixed cement / lime / silicic acid. Calcium plates or fiber-mixed cement / calcium silicate plates, gypsum boards, etc. are used.

  In addition, the eave roof material 4 is formed by assembling a vertical and horizontal core material 5a in a frame shape and attached to the lower surface of the eave sky field edge 5 fixed to the building frame. The eaves field edge 5 has a core material 5 a located on the outer wall side fixed to the outer wall 1.

  For example, glass wool, rock wool, or the like is used as the soft heat insulating material 6, but is not limited thereto. Resin heat insulating materials such as phenol foam, urethane foam, polystyrene foam, wool heat insulating material, cellulose heat insulating material, vacuum A heat insulating material or the like may be used.

On the other hand, the nasal concealment member 10 is provided in the vicinity of the lower portion of the nasal concealment member 10, and has a ventilation portion 11 having an air passage 11 a that communicates the outside with the back of the eaves, and is integrally formed with the ventilation portion 11. The partition part 12 which stands up between the air passage 11a and the eaves side end part of the heat insulating material 6 is provided.
In this way, the nose cover member 10 has a ventilation part 11 having a ventilation path 11a that communicates the outside and the back of the eaves, and a partition that rises between the ventilation path 11a and the eaves end side end of the heat insulating material 6. Since the part 12 is provided, the partition part 12 can reliably prevent the air passage 11a from being blocked by the eaves side end of the heat insulating material 6. Accordingly, it is possible to ensure ventilation to the back of the eaves through the ventilation path 11a.

The nose cover member 10 according to the present embodiment is formed by bending a steel thin plate, and the vertical plate portion 10a arranged vertically includes the gradient adjusting member 3a and the gutter member 3b. It is provided so as to be sandwiched between the two. Moreover, the upper part 10b formed in the cross-section hook shape is hooked by the hook member attached to the upper surface of the said roof panel 2. As shown in FIG.
Further, the nose cover member 10 is formed integrally with the ventilation portion 11 and is formed on the outer wall side of the ventilation portion 11 so as to protrude toward the outer wall 1. Is mounted.

  In addition to the ventilation path 11a, the ventilation part 11 includes a ventilation hole 15 that opens toward a gap formed between the ventilation part 11 and the gutter member 3b.

Furthermore, the ventilation part 11 is provided with a fireproof foaming material 7 that foams during a fire and closes the ventilation path 11a. The fireproof foam material 7 is provided in the vicinity of the vent hole 15.
As a result, in the event of a fire, the fireproof foaming material 7 provided in the ventilation path 11a foams, thereby blocking the ventilation path 11a and reliably preventing the fire from spreading from the ventilation path 11a to the back of the eaves. Therefore, it is possible to improve the fire prevention performance in the vicinity of the eaves top member 4.

  The fireproof foam material 7 of the present embodiment is made of, for example, a graphite-based material and foams when heated to about 200 degrees or more, and expands about 15 to 20 times with the fireproof foam material 7 having a thickness of 2 to 3 mm, for example. . Therefore, the fireproof foam material 7 is set to a size that can completely block the air passage 11a.

  The partition portion 12 is integrally formed with the placement portion 14 and is provided so as to extend in the vertical direction from the upper end portion of the placement portion 14. And this partition part 12 is functioning also as a part of wall which forms the said ventilation path 11a.

In addition, the upper end of the partition portion 12 is integrally provided with a pressing portion 13 that presses against the eaves end side end portion of the heat insulating material 6 by protruding toward the upper side of the eave roof material 4.
That is, by pressing down the eaves end side end of the heat insulating material 6 by the pressing portion 13, the heat insulating material 6 is connected to the outer wall 1 of the building and the nose cover member 10 provided on the eaves portion 3 of the roof 2 of the building. Since it can be surely accommodated in between, it is possible to more reliably prevent the air passage 11a from being blocked by the eaves end of the heat insulating material 6.

  The pressing portion 13 is in contact with the lower surface of the roof panel 2, and a gap is formed between the pressing portion 13 and the lower surface of the eaves 2 a located at the lower end in the gradient direction of the roof panel 2. Therefore, the pressing portion 13 also functions as a part of the wall that forms the ventilation path 11a.

And when laying down the heat insulating material 6 on the upper surface of the eaves top member 4, the eaves tip side end of the heat insulating material 6 is connected to the eaves top member 4, the partition portion 12, and the pressing portion 13. Push it into the position surrounded by.
Further, the outer wall side end of the heat insulating material 6 is disposed so as to contact the surface of the outer wall 1, and the portion of the heat insulating material 6 at the position where the eaves field edge 5 is provided is It arrange | positions so that it may mount on the upper surface of the field edge 5. FIG.

  Alternatively, in addition to such a method, the heat insulating material 6 is previously placed on the upper surface of the eaves field edge 5, and the eaves end side end of the heat insulating material 6 is connected to the partition portion 12, It is possible to use a method in which the eaves top member 4 is pushed into contact with the pressing part 13 and the eaves ceiling material 4 is applied later.

  According to the present embodiment, since the soft heat insulating materials 6, 6A, 6B are laid on the upper surface of the flat eave ceiling materials 4, 4A, 4B made of the non-combustible material, for example, the eave ceiling materials 4, When a fire breaks out below 4A, 4B, the eaves ceiling material 4, 4A, 4B remains without burning and can reliably prevent the spread of fire to the back of the eaves, and this eave ceiling material 4, 4A, 4B. Since the heat of the fire is insulated by the heat insulating materials 6, 6A, 6B laid on the upper surface of the roof, it is possible to reliably prevent the temperature of the back of the eaves from becoming high due to the heat of the fire. It becomes possible to improve the fire prevention performance in the vicinity of 4, 4A, 4B. That is, by laying the heat insulating materials 6, 6 </ b> A, 6 </ b> B on the top surfaces of the eaves ceiling materials 4, 4 </ b> A, 4 </ b> B, it becomes possible to improve the fireproof performance at any location. Easily and reliably even if the required fireproof performance differs between the eaves on one side of the building and the other side of the building, such as a house that faces a large garden or park in close proximity It can correspond to.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, only components that are different from the above-described first embodiment will be described.

As shown in FIG. 2, the eaves fire prevention structure of the present embodiment is nonflammable so as to be bridged between the outer wall 1 of the building and the nose cover member 10A provided on the eaves tip 3 of the roof 2 of the building. A flat eave ceiling material 4A made of a material is provided, and a soft heat insulating material 6A is laid on the upper surface of the eave ceiling material 4A.
Further, the outer wall 1 is provided with a support member 20 that supports the outer wall side end of the eave roof material 4A. The support member 20 includes an air passage 21 that communicates between the outside and the back of the eaves. A partition portion 22 is provided between the air passage 21 and the outer wall side end portion of the heat insulating material 6A.

  Here, the support member 20 includes a fixed plate portion 20 a fixed to the outer wall 1, and a siding material 1 c that protrudes from the lower end portion of the fixed plate portion 20 a toward the eaves side and is attached to the surface of the outer wall 1. And an abutting portion 20b with which the upper end of the abutting portion abuts.

The air passage 21 is formed between the fixed plate portion 20a and the partition portion 22, and is installed between the fixed plate portion 20a and the partition portion 22 and opens downward. A vent 21a is provided.
Further, the air passage 21 is provided with a fireproof foam material 7 that foams and closes the air passage 21 in a fire. The fireproof foam material 7 is provided in the vicinity of the vent 21a.

The partition portion 22 is arranged so as to face the fixed plate portion 20a, and the heat insulating material 6A protrudes upward from the eaves ceiling material 4A at the upper end portion of the partition portion 22. A pressing portion 23 that presses the outer wall side end of is integrally provided.
That is, the outer wall side end of the heat insulating material 6 </ b> A can be stored in a position surrounded by the eaves ceiling material 4 </ b> A, the partition portion 22, and the pressing portion 23.

  Further, a support portion 24 is integrally provided at the lower end portion of the partition portion 22 so as to support the outer wall side end portion of the eave roof material 4A by projecting toward the eave tip side.

On the other hand, the nasal concealment member 10A is formed on the lower outer wall side of the nasal concealment member 10A so as to protrude toward the outer wall 1, and the mounting portion 14A on which the eaves end side end portion of the eave ceiling member 4A is mounted. And a partition portion 12A that is integrally formed with the placement portion 14A and extends in the vertical direction from the upper end portion of the placement portion 14A.
In addition, a pressing portion 13A that presses down the end portion of the eaves side of the heat insulating material 6A is integrally provided at the upper end portion of the partition portion 12A by protruding toward the upper side of the eave ceiling material 4A. That is, the eaves end side end portion of the heat insulating material 6A can be stored in a position surrounded by the eave roof material 4A, the partition portion 12A, and the pressing portion 13A.

  Furthermore, the outer wall side end portion of the heat insulating material 6A can be stored in a position surrounded by the eave roof material 4A, the partition portion 22, and the pressing portion 23, and the eaves side of the heat insulating material 6A. Since the end portion can be accommodated in a position surrounded by the eave roof material 4A, the partition portion 12A, and the pressing portion 13A, the heat insulating material 6A can be securely placed on the upper surface of the eave roof material 4A. It can be paid.

  In addition, since the eaves 2a located at the lower end in the gradient direction of the roof panel 2 according to the present embodiment does not need to form an air passage between the eaves 2a and the pressing portion 13A, other eaves It is set to the same height as 2a.

According to the present embodiment, the partition portion 22 can reliably prevent the air passage 21 from being blocked by the outer wall side end portion of the heat insulating material 6A. Thereby, ventilation to the back of the eaves can be ensured through the ventilation path 21.
Further, by pressing the outer wall side end of the heat insulating material 6A by the pressing portion 23, the heat insulating material 6A is connected to the outer wall 1 of the building and the nose cover member 10A provided on the eaves portion 3 of the roof 2 of the building. Since it can be surely accommodated in between, it is possible to more reliably prevent the air passage 21 from being blocked by the outer wall side end of the heat insulating material 6A.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to the drawings. For convenience of explanation, only components that are different from the first and second embodiments described above will be described.

As shown in FIG. 3, the eaves fire prevention structure of the present embodiment is nonflammable so as to be bridged between the outer wall 1 of the building and the nose cover member 10B provided on the eaves tip 3 of the roof 2 of the building. A flat eave ceiling material 4B made of a material is provided, and a soft heat insulating material 6B is laid on the upper surface of the eave ceiling material 4B.
Moreover, the said heat insulating material 6B is inserted | pinched between the said eaves top material 4B and the eaves field edge 5B fixed to a building frame.

Here, the eaves field edge 5B is formed by assembling vertical and horizontal core members 5Ba in a frame shape, and the core member 5Ba located on the outer wall side is fixed to the outer wall 1 among the vertical and horizontal core members 5Ba. Yes.
Moreover, the said heat insulating material 6B is arrange | positioned under this eaves field edge 5B, and the said eaves ceiling material 4B is arrange | positioned under this heat insulating material 6B.

The nose cover member 10B includes a ventilation part 11B having a ventilation path 11Ba that communicates the outside and the back of the eaves, and a partition part 12B that rises between the ventilation path 11Ba and the eaves end side end of the heat insulating material 6B. The holding portion 13B is provided integrally with the upper end portion of the partition portion 12B and protrudes upward from the eaves ceiling material 4B. The nose cover member 10B is formed integrally with the ventilation portion 11B, and is formed to protrude toward the outer wall 1 on the outer wall side of the ventilation portion 11B. Is mounted.
And it arrange | positions so that the eaves side edge part of the said heat insulating material 6B may be stored in the position enclosed by the said eaves top material 4B, the said partition part 12B, and the said holding | suppressing part 13B, and the said ventilation path 11Ba is prevented from being blocked, and ventilation to the back of the eaves can be secured through this ventilation path 11Ba.

  On the other hand, when the heat insulating material 6B is sandwiched between the eave ceiling material 4B and the eave ceiling field edge 5B, the eave ceiling material 4B is bonded to the eave ceiling field edge 5B by, for example, a fastening material. At the time of fixing to the eaves ceiling material 4B, the heat insulating material 6B is fixed to the eaves field edge 5B.

  According to the present embodiment, since the heat insulating material 6B is sandwiched between the eave roof material 4B and the eave sky field edge 5B fixed to the building frame, the heat insulating material 6B is turned over. It can be surely prevented from floating or floating, and can be reliably placed on the eaves top 4B.

It is a sectional side view which shows the eaves fire prevention structure which concerns on the 1st Embodiment of this invention. It is a sectional side view which shows the eave sky fire prevention structure which concerns on the 2nd Embodiment of this invention. It is a sectional side view which shows the eave sky fire prevention structure which concerns on the 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer wall 2 Roof 3 Eaves part 4 Eaves top material 6 Insulation material 10 Nose cover member

Claims (6)

  A flat eave ceiling made of non-combustible material is installed between the outer wall of the building and the nose cover member provided on the eaves of the roof of the building. An eaves fire prevention structure characterized in that soft insulation is laid. In the eaves fire prevention structure according to claim 1,
The nose cover member is provided in the vicinity of the lower portion of the nose cover member, and has a ventilation portion having a ventilation path that communicates the outside and the back of the eaves, and is integrally formed with the ventilation portion. An eaves fire prevention structure comprising a partition portion that rises between an eaves end side end of the material. In the eaves fire prevention structure according to claim 1,
The outer wall is provided with a support member that supports the outer wall side end of the eaves ceiling material,
The support member includes an air passage that communicates the outside and the back of the eave, and a partition that rises between the air passage and the outer wall side end of the heat insulating material. . In the eaves fire prevention structure according to claim 2 or 3,
The eave sky fire prevention structure, wherein a pressing portion that presses down an end portion of the heat insulating material by protruding upward from the eave ceiling material is integrally provided at an upper end portion of the partition portion. In the eaves fire prevention structure as described in any one of Claims 2-4,
An eaves fire prevention structure, wherein a fireproof foaming material is provided in the air passage so as to block the air passage by foaming in the event of a fire. In the eaves fire prevention structure according to any one of claims 1 to 5,
The eave heaven fire prevention structure, wherein the heat insulating material is sandwiched between the eave heaven material and an eave heaven edge fixed to a building frame.

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