JP4932605B2 - Building ventilation material - Google Patents

Description

  The present invention relates to a building ventilation material, and more particularly to a building ventilation material for performing ventilation in a building ridge portion of a house while preventing intrusion of rain and snow and having a fire prevention function.

  As the building ventilation material, for example, the one described in Japanese Patent No. 2610342 is known (see FIG. 5). That is, two plate-like ventilation members 21 and 22 provided with a large number of ventilation passages 23 that open in the ridge direction are connected so as to exhibit an inverted V shape.

  As another example, as shown in FIG. 6, a ventilation in which a large number of ventilation paths 34 extending from the outer surface A to the inner surface B are connected in the vertical and horizontal directions on the back surfaces of both ends in the width direction of the upper surface plate 31 having a mountain shape. The members 32 and 33 are installed, a lower surface plate 38 extending further inwardly from the lower surface of each of the ventilation members 32 and 33 is fixed, and an inner end portion of each of the lower surface plates 38 is connected to the upper surface plate 31. There is a building ventilation device in which a draining plate 39 is formed by bending upward with a ventilation space in between (Japanese Patent Laid-Open No. 2001-323619), and various other devices are known.

  However, in the case of the conventional building ventilation materials mentioned above, attention is directed only to preventing rain and snow from entering the back of the hut while ensuring sufficient ventilation performance. There was a lack of consideration on the flame front.

Japanese Patent No. 2610342 JP 2001-323619 A Japanese Patent No. 3277232 JP 2003-56145 A Japanese Patent Laid-Open No. 2003-3631

  As mentioned above, in the case of the conventional building ventilation materials, all of the attention is directed to preventing rain and snow from entering the back of the hut while ensuring sufficient ventilation performance. Since there was a lack of consideration in terms of flameproofing, it is an object of the present invention to provide a building ventilation material having a fireproofing and flameproofing function in consideration of this point.

  In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a horizontally long metal top plate having a mountain-shaped cross section, and a ventilation member is fixed to each back surface on both sides in the width direction of the top plate over its entire length. A tape-like nonflammable thermal expansion material is formed on the inner top surface of the top plate so that the long direction is along the inner end of the ventilation member and the short direction is along the edge of the top plate. In the expansion, it is fixed in a quadrangular shape that can form a barrier surrounding the ridge opening, and a dew condensation prevention sheet is covered inside the non-combustible thermal expansion material fixing portion on the inner top surface of the top plate. It is a building ventilation material characterized by this.

  Preferably, the top plate is extended in the length direction on the top plate, seating portions are provided at both ends in the width direction of the extension portion, and packing is fixed to the back surface of the ventilation member.

  Since the present invention has the above-described configuration, it has a simple configuration, and in the event of a fire, a barrier is formed so that the non-combustible thermal expansion material expands and surrounds the building opening in the event of a fire. It is possible to prevent the inflow of flames and hot air into the indoor space, thereby killing the fire and preventing the spread of fire.

  The best mode for carrying out the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side perspective view of an embodiment of a building ventilation material according to the present invention, FIG. 2 is a front side perspective view thereof, and FIG. 3 is a rear side perspective view thereof. The upper surfaces of the ventilation members 1 and 2 extending over the entire length are fixed to the back surfaces of both sides in the width direction of the metal top plate 3 by bonding, screwing or the like.

  As the ventilation members 1 and 2, for example, those in which ventilation paths 8 extending from one side surface to the other side surface are connected in the vertical and horizontal directions can be used. It can be constructed by laminating a number of plastic plates with the ventilation passages 8 arranged in parallel (Japanese Patent No. 2610342).

  Alternatively, the ventilation members 1 and 2 are configured by using a ventilation plate formed by processing a plastic plate such as polypropylene and a large number of cones standing upright on the surface thereof (see JP-A-2006-104767). ), A cylindrical breathable pipe (see Japanese Patent Application No. 2007-112744) such as a linear material knitted into a coarse mesh by plastic molding, or any other one can be employed.

  Whichever ventilation member 1 or 2 is used, it is preferable that the packing 4 having a thickness of about 1 cm is fixed to the back surface of the base plate 12 by adhesion or the like. The packing 4 is in a crushed state at the time of construction and is in close contact with the field board 12, thereby serving to block rainwater that may enter the building opening 11 through the field board 12.

  The top plate 3 is usually formed by bending a single metal plate into a chevron shape, but can also be configured by arranging two metal plates and taped so as to be bent into a chevron shape.

  In the present invention, a tape-like noncombustible thermal expansion material 7 is formed on the inner top surface of the top plate 3 so that the long direction is along the inner ends of the ventilation members 1 and 2, and the short direction is the top plate 3. It is fixed in a square shape along the edge. The size of the quadrangle is a size that can form a barrier surrounding the ridge opening 11 during expansion.

  Preferably, both ends of the top plate 3 in the length direction are extended, and seating portions 6 are formed at both ends of the extension in the width direction. This seating portion 6 is brought into contact with the base plate 12 during construction to stabilize the installation state of the main building ventilation material, and is overlapped and joined when connecting a plurality of main building ventilation materials in the length direction. Is to do. The seat portion 6 is formed by further extending the extension portion in the width direction and bending it downward at a right angle, and further bending it in the horizontal direction. In addition, at the time of construction, the opening surfaces at both ends of the main building ventilation material are appropriately closed.

  A condensation prevention sheet 9 is covered inside the nonflammable thermal expansion material 7 fixing portion on the inner top surface of the top plate 3, and condensation is prevented at that portion, thereby preventing water droplets from falling into the building opening 11. Is done. Further, a nail hole 5 for driving a nail 10 or the like for fixing the main building ventilation material to the base plate 12 is drilled at an appropriate position of the top board 3.

  The building ventilation material according to the present invention is installed on the building opening 11 in the same manner as the conventional one, and performs the same ventilation action as the conventional one. Of course, the presence of the non-combustible thermal expansion material 7 does not cause a decrease in the ventilation performance.

  When a fire or hot air reaches the non-combustible thermal expansion material 7 at the time of a fire, it immediately expands to form a barrier so as to surround the wing opening 11, and the flame or hot air enters the wing opening. Stop without fail.

  Although the present invention has been described in some detail with respect to its most preferred embodiments, it will be apparent that a wide variety of different embodiments can be constructed without departing from the spirit and scope of the invention, the invention being defined by the appended claims. It is not restricted to the specific embodiment other than limiting in.

It is a side perspective view of one embodiment of the building ventilation material concerning the present invention. It is a surface side perspective view of one embodiment of a building ventilation material concerning the present invention. It is a back surface side perspective view of one embodiment of a building ventilation material concerning the present invention. It is a use condition figure of the ridge ventilation material concerning the present invention. It is a figure which shows one structural example of the conventional ridge ventilation material. It is a figure which shows the other structural example of the conventional ridge ventilation material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Ventilation member 3 Top plate 4 Packing 5 Nail hole 6 Seating part 7 Nonflammable thermal expansion material 8 Ventilation path 9 Condensation prevention sheet 10 Nail 11 Building opening 12 Field plate

Claims (3)

  A cross-section is provided in the shape of a mountain and a horizontally long metal top plate, and a ventilation member is fixed to each back surface on both sides in the width direction of the top plate over the entire length thereof. Along the inner end of the ventilation member, the short direction is along the edge of the top plate, and the tape-like noncombustible thermal expansion material surrounds the ridge opening at the time of expansion and can form a barrier. A building ventilation material, which is fixed in a rectangular shape and is provided with a dew condensation prevention sheet inside the non-combustible thermal expansion material fixing portion on the inner top surface of the top plate.   The ridge ventilation material according to claim 1, wherein the top plate is extended in the length direction, and seating portions are provided at both ends of the extension portion in the width direction.   The building ventilation material according to claim 1 or 2, wherein a packing is fixed to the back surface of the ventilation member.

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