JP5985334B2 - Vent layer forming member - Google Patents

Description

The present invention relates to a member for forming a ventilation layer, and more specifically, when a heat insulating material is disposed on a roof, a wall, a floor, etc. of a house, between the heat insulating material and a field board or an outer wall material. The present invention relates to a member for forming a ventilation layer for securing the ventilation layer.

For example, in the construction of a heat insulating material on a roof, a heat insulating material (including a mat-shaped heat insulating material, a blow-type heat insulating material and other various heat insulating materials) is loaded from the indoor side into a space formed by a field board and a rafter. However, it is constructed so that a ventilation layer is secured between the heat insulating material and the base plate when loading. Therefore, the thickness of the heat insulating material is set to be slightly shorter than the height of the rafter.

However, since the heat insulating material is loaded from the indoor side into the space formed by the field board and rafters, there is a dimensional difference between the thickness of the heat insulating material and the height of the rafters between the heat insulating material and the field board. It is not easy to maintain the corresponding space, and the space is often crushed by being pushed too much, so it is actually difficult to secure a sufficient ventilation layer.

Therefore, in order to easily and surely form a ventilation layer between the heat insulating material and the field board, a member for forming a ventilation layer is disposed between the rafters before the heat insulating material is loaded. As a conventional member for forming this kind of air-permeable layer, the cardboard is bent to have a spacer function in the vertical direction, and
Proposals have been made of those having a certain degree of elastic force in the width direction and those obtained by molding a resin sheet (film).

  Recently, in-situ urethane foam heat insulating materials are increasingly used as heat insulating materials, but in the case of a corrugated cardboard ventilation layer forming member, the surface is water-repellent and the surface smoothness is high. Since it is high, there is a problem that the adhesion with the in-situ urethane foam heat insulating material is poor and the construction is difficult. In addition, in the case of a ventilation layer forming member formed by molding a resin sheet (film), there is a similar problem because of high surface smoothness.

  In addition, when using an in-situ foamed urethane heat insulating material as the heat insulating material, after the air-permeable layer forming member is installed, the foam material is directly sprayed onto the air-permeable layer forming member and waits for the foam material to expand to a predetermined heat insulating material thickness. However, at that time, as the foam material expands, the air-permeable layer forming member tends to be warped because it is pulled toward the indoor side. As a result, the heat insulating material in the warped portion of the ventilation layer forming member bulges to the indoor side, and the bulged portion is scraped off, resulting in a situation where the thickness of the heat insulating material in that portion is insufficient. Arise. However, conventionally, no measures have been taken to avoid the occurrence of such a situation.

  Furthermore, when the building is demolished, the dismantled materials are separated by type, but at the site where the heat insulating material is constructed by the conventional method, the heat insulating material is in close contact with the plate material and it takes time to separate it. There is. The various problems described above can occur not only when the heat insulating material is applied to the roof but also when it is applied to the wall or floor.

JP 2011-12414 A JP 2010-37826 A JP 2001-227080 A

  As described above, in order to easily and surely form a ventilation layer between the heat insulating material and the base plate, a member for forming the air flow layer is disposed between the rafters before loading the heat insulating material. In the case of an air-permeable layer forming member formed by molding a corrugated cardboard air-permeable layer forming member or a resin sheet (film), the surface smoothness is high, and therefore, the adhesiveness with the in-situ foamed urethane heat insulating material is high. There was a problem that construction was difficult.

  Also, when using an in-situ urethane heat insulating material as the heat insulating material, when the foam material expands, the ventilation layer forming member is pulled to the indoor side and warps, and the portion of the heat insulating material that bulges to the indoor side Although there may be a situation where the thickness of the heat insulating material is insufficient due to scraping, there has been no particular measure for that, and the materials dismantled at the time of building demolition are classified according to type. However, in the field where the heat insulating material was constructed by the conventional method, there was a problem that the heat insulating material was in close contact with the plate material and it took time to separate it.

  The present invention has been made in view of various problems in such a conventional air-permeable layer forming member, and is suitable for mass production with a simple configuration, can be supplied at low cost, is easy to handle, has excellent workability, and has a heat insulation property. It is an object of the present invention to provide a ventilation layer forming member suitable for easily and reliably forming a ventilation layer between a material and a plate material such as a field board.

  In the present invention, when the in-situ urethane foam heat insulating material is used, the ventilation layer forming member positioned thereon is not pulled to the indoor side as the foam material expands, and the heat insulating material is scraped off. Thus, it is possible to avoid the occurrence of a situation where the thickness of the heat insulating material is insufficient, and to provide a member for forming a ventilation layer that can easily separate materials after disassembly is an issue to be solved.

  The invention according to claim 1 for solving the above-mentioned problem is that the ventilation layer is used for holding the ventilation space when the in-situ foamed urethane heat insulating material is constructed by holding the ventilation space between the plate material and the wooden frame. A convex member having a height corresponding to the short dimension of the ventilation space and having one or a plurality of through holes is formed on a base material made of a sheet-like or film-like material. It is a member for forming an air-permeable layer.

  In one embodiment, the convex portions are hollow projecting portions that are arranged in a plurality at appropriate intervals, and the hollow projecting portions are formed in a regular arrangement such as a lattice shape, a staggered shape, or the like, or , Formed in a random arrangement. In this embodiment, there are cases where all of the hollow protrusions have the through holes and cases where the hollow protrusions include those having the through holes and those having no through holes.

  In one embodiment, the convex portion is a wave head of the sheet-like or film-like corrugated plate, and the through holes are arranged in a regular arrangement on the wave head or not. Arranged in a regular arrangement. In this embodiment, there are cases where all of the wave heads have the through holes and cases where the wave heads have and do not have the through holes.

  Furthermore, in one Embodiment, the said convex part is fixed to one or both of the said board | plate material and the said wooden frame before spraying of the said in-situ foaming urethane heat insulating material.

  The present invention is as described above, and the air-permeable layer forming member according to the present invention has a convex portion having a height corresponding to the short dimension of the air-permeable space formed on a base material made of a sheet-like or film-like material. Since the through-hole is drilled at the apex of the convex part, a ventilation space is secured between the convex parts by interposing between the plate material and the wooden frame when constructing the in-situ urethane foam heat insulating material, There is an effect that a ventilation space can be secured easily and surely on the upper side of the in-situ urethane foam heat insulating material constructed between the wooden frames.

  In addition, the present invention is that the foaming stock solution passes through the through-holes to the opposite side when the foaming stock solution is blown into an adhesive state to the plate material, so that the heat insulating material and the ventilation layer forming member are reliably integrated, As the foam material expands, the ventilation layer forming member positioned thereon is prevented from being pulled to the indoor side, and thus the portion protruding to the indoor side is scraped off, so that the thickness of the heat insulating material at that portion is removed. In addition, there is an effect of avoiding the occurrence of a situation where there is a shortage of air.In addition, when separating the heat insulating material from the surrounding wood at the time of building demolition, it can be performed integrally with the member for forming the ventilation layer. There is an effect that becomes easy.

It is a perspective view of one embodiment of a member for forming a ventilation layer concerning the present invention. It is a longitudinal cross-sectional view which shows the modification of embodiment shown in FIG. It is a perspective view of other embodiment of the member for ventilation layer formation concerning the present invention. It is a figure which shows the effect | action of embodiment shown in FIG. It is a principal part enlarged view of FIG. It is a figure which shows the manufacturing method of the member for ventilation layer formation in embodiment shown in FIG. It is a figure which shows the other manufacturing method of the member for ventilation layer formation in embodiment shown in FIG.

  DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described with reference to the accompanying drawings. The present invention is a member for forming a ventilation layer used to hold the ventilation space while holding the ventilation space between the plate material and the wooden frame, and has a certain shape retention force. A base material made of a sheet-like or film-like material having a height corresponding to the short dimension of the ventilation space and having a convex part having one or a plurality of through-holes at the zenith part. is there. In addition, although the example demonstrated below is a thing when constructing a heat insulating material on a roof using this ventilation layer forming member, when constructing on a wall or a floor, it implements according to the case of a roof.

  First, the embodiment shown in FIG. 1 and FIG. 2 will be described. The protrusions of the air-permeable layer forming member S in the embodiment have a plurality of hollow protrusions arranged on the sheet-like or film-like substrate 1. 2. The hollow protrusions 2 are regularly arranged in a lattice shape, a zigzag shape, or the like on the base material 1 or are randomly arranged. However, in order to generate a sufficient ventilation space between the hollow protrusions 2, it is necessary to prevent the arrangement from being too dense.

  One or a plurality of through holes 3 are formed in the hollow protrusion 2. The through holes 3 may be formed in all the hollow projecting portions 2 or in some of the hollow projecting portions 2. The through-hole 3 may be drilled after the hollow protrusion 2 is molded, but may be drilled in the base material 1 before the molding.

  The shape of the hollow projecting portion 2 is arbitrary. For example, the cross-sectional shape is formed in a semicircular shape, a trapezoidal shape, a quadrangular shape, or the like (see FIG. 2), and the height thereof is formed between the wooden frames (the rafters 11). The height corresponding to the short width of the ventilation space (height in the case of a roof and depth in the case of a wall). Moreover, it is preferable to set the width | variety of the base material 1 so that it may become a little larger than the space | interval between the rafters (wooden frame) 11 in which it is constructed. Typically, the air-permeable layer forming member S is manufactured in a horizontally long shape and cut into a desired length when in use.

  The convex part in the ventilation layer forming member S of the embodiment shown in FIG. 3 is the wave head 5 of the base material 1 formed in a corrugated plate shape, and the through hole 3 in this case is the wave head 5. Provided. Also in this embodiment, the through holes 3 may be provided in all the wave heads 5 or in some wave heads 5. 6 and 7 show an example of the manufacturing method of the air-permeable layer forming member S in this embodiment. The example shown in FIG. 6 is a base material 1 in which the through holes 3 are previously drilled in a regular arrangement. In this case, the through holes 3 are regularly positioned at the wave front. In the example shown in FIG. 7, the base material 1 in which the through holes 3 are randomly drilled is formed into a corrugated shape, and the through holes 3 in this case are irregularly positioned at the wave front.

  The height of the wave head 5 corresponds to the short width of the ventilation layer to be formed between the wooden frames (the rafters 11) (height in the case of a roof and depth in the case of a wall). It is assumed. The air-permeable layer forming member S in this embodiment is also manufactured in a horizontally long shape, and is cut to a desired length during use. The corrugated plate shape of the substrate 1 is not limited to the sine wave shape in the illustrated example, but may be a trapezoidal wave shape, a pulse wave shape, a sawtooth wave shape, or other wave shapes.

  In constructing the in-situ foamed urethane heat insulating material 13 on the roof portion using the air-permeable layer forming member S according to the present invention, first, ventilation is performed between the rafters (wooden frames) 11 on which the field board (plate material) 12 is stretched. The layer forming member S is placed in such a manner that the apex of the hollow projecting portion 2 in which the through hole 3 is formed, in other words, the through hole 3 formed portion of the hollow projecting portion 2 is in contact with or close to the base plate 12. Fit from the inside. In the case of the second embodiment, the wave head 5 having the through-hole 3 is disposed so as to abut or approach the field plate 12.

  The air-permeable layer forming member S loaded between the rafters 11 is usually pushed between the rafters 11 because the width of the base material 1 is set slightly larger than the interval between the rafters 11. (See FIG. 4). Therefore, it becomes difficult to fall off by being caught between the rafters 11 due to the restoring force of the base material 1, and the construction becomes easier accordingly.

  After disposing the air-permeable layer forming member S in this way, when the foaming stock solution is sprayed on the back surface side of the air-permeable layer forming member S, a part of the foaming stock solution passes through the through hole to the opposite side and adheres to the plate material. The bonded portion 13a that is in a state is generated in a dot shape (see FIGS. 4 and 5).

  In FIGS. 4 and 5, the bonding portion 13 a is expressed thickly to help understanding, but it is actually thin. By the action of the adhesive portion 13a, the heat insulating material 13 and the ventilation layer forming member S are surely integrated, and the ventilation layer forming member S positioned thereon is pulled indoors as the foam material expands. Therefore, it is possible to avoid the occurrence of a situation in which the bulging part of the in-situ foamed urethane heat insulating material 13 caused by being pulled indoors is scraped unnecessarily, resulting in insufficient thickness of the heat insulating material. Is done.

  In addition, before spraying a foaming undiluted | stock solution, the appropriate location of the base material 1 may be fixed to the field board 12 or the rafter 11 by tackering or adhesion | attachment. In such a case, the ventilation layer forming member S is further prevented from being pulled indoors. There is no possibility of a situation in which the bulging portion of the in-situ foamed urethane heat insulating material 13 caused by being pulled is scraped unnecessarily, resulting in insufficient thickness of the heat insulating material.

  In the case where the air-permeable layer forming member S according to the present invention is used, the adhesive portion 13a is present in the form of dots as the foaming stock solution is sprayed. Since the self-adhesive force is increased and the in-situ urethane foam heat insulating material 13 is completely integrated with the ventilation layer forming member S, there is no possibility of dropping off from the ventilation layer forming member S. Further, since the bonding portion 13a generated on the front side of the ventilation layer forming member S is self-adhering to the base plate 12, the positional stability of the ventilation layer forming member S is maintained. After the in-situ urethane heat insulating material 13 is foamed between all the rafters 11, the board is stretched to complete the construction.

  In this way, by interposing the ventilation layer forming member S between the in-situ foamed urethane heat insulating material 13 and the base plate 12, the space between the hollow protrusions 2 or the wave heads 5 becomes the ventilation space 15. Thus, the ventilation through the eaves to the ridge is possible on the lower side of the field board 12.

  The member S for forming an air-permeable layer according to the present invention is suitable for mass production and can be supplied at a low cost because of the above structure, and is a member for forming an air-permeable layer between the in-situ foamed urethane heat insulating material 13 and the base plate 12. It becomes suitable as. Further, when the foaming stock solution is blown in, the foaming stock solution passes through the through holes 3 to the opposite side, so that the foaming stock solution that has passed through foams on the opposite side to form the bonding portion 13a in a dotted shape, and the base plate 12 is self-adapted. Adhesion improves the adhesion to the plate.

  Further, the adhesive portion 13a formed on the front side of the air-permeable layer forming member S is not a planar shape but a point-like contact with the base plate 12, and is self-adhesive. There is an advantage that the heat insulating material 13 can be easily separated from the peripheral members such as the base plate 12 integrally with the air-permeable layer forming member S, and the waste materials can be easily separated.

Although the present invention has been described in some detail with respect to its most preferred embodiments, it is apparent that further embodiments can be constructed without departing from the spirit and scope of the invention. Accordingly, it is to be understood that the invention is not limited to specific embodiments thereof except as limited in the appended claims.

DESCRIPTION OF SYMBOLS S Ventilation layer forming member 1 Base material 2 Hollow protrusion part 3 Through hole
5 wave head
11 Rafter 12 Field plate 13 In-situ urethane foam insulation 13a Adhesion 15 Ventilation space

Claims (10)

When constructing an in-situ foamed urethane heat insulating material while holding a ventilation space between a plate material and a wooden frame, a member for forming a ventilation layer used for holding the ventilation space,
A sheet-like or film-like base material made of a material having a height corresponding to the short dimension of the ventilation space and having a convex part having one or a plurality of through holes in the zenith part. A member for forming a ventilation layer.   The ventilation layer forming member according to claim 1, wherein a plurality of the protrusions are hollow protrusions disposed at appropriate intervals.   The ventilation layer forming member according to claim 2, wherein the hollow protrusions are formed in a regular arrangement such as a lattice shape, a staggered shape, or the like.   The ventilation layer forming member according to claim 2, wherein the hollow protrusion is formed in a random arrangement.   The ventilation layer forming member according to any one of claims 2 to 4, wherein all of the hollow protrusions have the through holes.   The ventilation layer forming member according to any one of claims 2 to 4, wherein the hollow protrusion includes a hollow protrusion and a hollow protrusion.   The convex portion is a wave head of the corrugated sheet made of sheet or film material, and the through holes are arranged in a regular arrangement or irregular arrangement in the wave head. The member for forming a ventilation layer according to claim 1.   The ventilation layer forming member according to claim 7, wherein all of the wave heads have the through holes.   The ventilation layer forming member according to claim 7, wherein the wave head includes those having the through holes and those having no through holes.   The ventilation layer forming member according to any one of claims 1 to 9, wherein the convex portion is fixed to one or both of the plate member and the wooden frame before spraying the in-situ foamed urethane heat insulating material.

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