JP2006097323A - Thermal insulating material, its construction method and structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal insulating material capable of sufficiently protecting the end face against ultraviolet rays or water, its construction method and structure. <P>SOLUTION: A metal siding 10 is formed by interposing the thermal insulating material 12 between a pair of metal plates 11 and 11. A gap of about 5 to 20 mm is formed between the metal sidings 10. The end face 12a of the thermal insulating material 12 of the metal siding 10 facing the gap is a coarse face with a large number of holes having a depth as deep as 30 to 600 μm and formed in a hole density of 50 to 700 pieces/cm<SP>2</SP>. A back-up material 3 consisting of foamed polyethylene and foamed EPDM, etc. is pressed into the gap between the metal sidings 10, and the front side is filled with a sealing compound 4 consisting of a modified silicone resin, epoxy modified urethane, etc. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat insulating material for constructing a heat insulating wall in a building, its construction method and construction structure, and in particular, a waterproof treatment between heat insulating materials made of foamed synthetic resin can be performed with a sealing material. It is related with the heat insulating material which can be performed, its construction method, and construction structure. Specifically, the present invention relates to a heat insulating material suitable for application to metal siding, a construction method thereof, and a construction structure.

  As a building panel, one in which a surface material and a back material made of an aluminum plate, a steel plate, or the like are provided on the front and back of a core material layer such as a heat insulating material layer made of a synthetic resin foam such as polyurethane foam is known (Japanese Patent Laid-Open No. Hei 3). -2411161, JP-A-10-159196).

  Such an architectural panel is attached and constructed on the wall surface by nailing or the like. At this time, in general, attachment is performed with a slight gap as a thermal expansion allowance between adjacent building panels.

  In this way, if there is a gap in the joint between adjacent building panels, ultraviolet rays, rainwater, and in some cases insects such as white ants invade from this gap, and the core layer exposed on the end face of the building panel deteriorates. (Skinny). When the core material layer deteriorates, the fastening strength of the building panel fastened by nailing is weakened and the building panel is attached or, in a remarkable case, the building panel falls off. Moreover, when the core material layer is a heat insulating material layer, the original functionality of the core material layer is impaired, for example, the heat insulating performance of the heat insulating material layer is lowered.

  In the former construction panel of Japanese Patent Laid-Open No. 3-241161, the core material layer is exposed at a pair of side end faces facing each other (see FIG. 1 of the same publication). Therefore, the core material layer is likely to deteriorate as described above.

  In the latter paragraph of Japanese Patent Laid-Open No. 10-159196, the core layer is formed by applying a waterproof or moisture-proof plate or film to the core layer exposed on the end face of the building panel, or by applying an oil paint. Covering is described.

Japanese Patent Application Laid-Open No. 11-13252 discloses that a waterproof tape is pasted so as to straddle the joints of adjacent building panels in a structure in which the end panels are abutted to each other and the building panel is attached to the wall surface. 7, paragraph 0024).
JP-A-3-241161 JP 10-159196 A JP-A-11-13252

  As described in Japanese Patent Application Laid-Open No. 10-159196, even if the end face of the core layer of the building panel is covered, it cannot prevent the ultraviolet light or water from entering the gap between the building panels. May be deteriorated by ultraviolet rays or water.

  As described in Japanese Patent Application Laid-Open No. 11-13252, even if a waterproof tape is applied so as to straddle the joints of the building panels, ultraviolet rays and water cannot be reliably prevented from entering between the building panels. Once water enters the gaps between the seams between the building panels, deterioration such as generation of mold on the core material layer exposed on the end faces occurs. In addition, simply sticking waterproof tape on the front of the building panel cannot sufficiently prevent white ants and the like from entering the gaps between the joints of the building panels. There is also a risk of nesting and breeding.

  An object of the present invention is to solve the above-mentioned conventional problems, and to provide a heat insulating material capable of sufficiently protecting an end face from ultraviolet rays, water, white ants, and the like, a construction method and a construction structure.

The heat-insulating material according to claim 1 is a plate-like heat-insulating material made of foamed synthetic resin, and the end surface is a rough surface having many holes with a hole depth of 30 to 600 μm and a hole number density of 50 to 700 holes / cm ^2. It is characterized by being.

  The heat insulating material according to claim 2 is characterized in that, in claim 1, a metal plate is provided on at least one plate surface.

  A heat insulating material according to claim 3 is characterized in that, in claim 1 or 2, a coating layer made of a resin is provided on an end face of the heat insulating material.

  The heat insulating material according to claim 4 is characterized in that, in claim 3, the hardness of the coating layer is higher than the hardness of the foamed synthetic resin.

  The heat insulating material construction method according to claim 5 is a heat insulating material construction method in which the heat insulating material is attached to a wall. After the resin coating is applied to the end face of the heat insulating material according to claim 1 or 2, a plurality of the heat insulating materials are spaced from each other. It is attached to a wall with a gap, and a sealing material is filled in a gap between the heat insulating materials.

  The heat insulating material construction method according to claim 6 is the heat insulating material construction method for attaching a heat insulating material to a wall, and after applying the resin coating to the end face of the heat insulating material according to claim 1 or 2, the heat insulating material is attached to the wall. The end face of the heat insulating material is disposed close to the protrusion from the wall with a gap, and a sealing material is filled in the gap between the protrusion and the heat insulating material.

  The heat insulating material construction method according to claim 7 is the heat insulating material construction method for attaching a heat insulating material to a wall, wherein the heat insulating material according to claim 3 or 4 is attached to a wall, and the end surface of the heat insulating material protrudes from the wall. The object is characterized by being placed in close proximity with a gap, and the sealing material is filled in the gap between the protrusion and the heat insulating material.

  The heat insulating material construction structure according to claim 8 is a heat insulating material construction structure in which the heat insulating material is attached to a wall, wherein the plurality of heat insulating materials according to claim 3 or 4 are arranged in parallel and a gap is formed between the heat insulating materials. It is the heat insulating material construction structure attached to the wall with a gap, and the sealing material is filled in the gap between the heat insulating materials.

  The heat insulating material construction structure according to claim 9 is the heat insulating material construction structure in which the heat insulating material is attached to the wall. The heat insulating material according to claim 3 or 4 is attached to the wall, and an end face of the heat insulating material protrudes from the wall. It is a heat insulating material construction structure that is disposed in close proximity to an object with a gap between the end face of the heat insulating material and the protrusion filled with a sealing material.

  The heat insulating material of the present invention (Claims 1 to 4) is used like the construction structure of the present invention (Claims 8 and 9). In this construction structure, the end face of the heat insulating material is coated with a resin, and the end face is made of a rough surface having a large number of holes. Therefore, the adhesion force and durability of the resin covering layer to the end face of the heat insulating material Is expensive. Further, the resin coating layer is also rich in unevenness due to the rough surface of the end face of the heat insulating material, the adhesion area of the sealing material to the resin coating layer is increased, and the adhesion force and durability between both are increased.

  In the construction structure of the heat insulating material according to the present invention, the end surfaces of the heat insulating material are coated with a resin, and the gap between the end surfaces is filled with a sealing material. Etc. are reliably prevented from entering. In addition, the adhesion strength to the heat insulating material of a sealing material will become high that the coating layer which coat | covers the end surface of a heat insulating material is harder than foaming synthetic resin.

  This heat insulating material construction structure can be constructed by the method of the present invention (claims 5 to 7).

  In the present invention, the heat insulating materials may be arranged with a gap between them, and the heat insulating material is attached with a gap between the projections from the wall such as ducts, window frames, door frames and the heat insulating material. May be.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 (a) is a cross-sectional perspective view showing the construction structure of metal siding according to the embodiment, FIG. 1 (b) is a cross-sectional view taken along the line BB of FIG. 1 (a), and FIG. It is a perspective view which shows the installation structure of the metal siding before providing a material and a sealing material.

  As shown in FIG. 1 (a), a moisture permeable waterproof sheet 2 is stretched across a plurality of pillars 1.

  A metal siding 10 is attached to the front side of the moisture permeable waterproof sheet 2. The joints of the metal sidings 10 and 10 adjacent to the left and right are located in front of the pillar 1.

  As shown in FIG. 2, the metal siding 10 is obtained by interposing a heat insulating material 12 between a pair of metal plates 11 and 11. As the metal plate 11, a steel plate or an aluminum plate having a thickness of about 0.15 to 0.5 mm is suitable, and as the heat insulating material 12, a foamed synthetic resin having a thickness of about 25 to 50 mm is suitable. Examples of the foamed synthetic resin include polyurethane foam, polyisocyanurate foam, phenol foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam and the like.

  On the upper end side of the metal siding 10, a convex portion 10a is formed so as to reduce the thickness. A recess 10b is formed on the lower end surface of the metal siding 10 so as to be recessed upward from the central portion in the thickness direction, and a packing 10c made of rubber or the like is fixed to the inner surface (ceiling surface) of the recess 10b by adhesion or the like. ing. The metal siding 10 is installed on the wall so that the convex portion 10a of the metal siding 10 disposed on the lower side and the concave portion 10b of the metal siding 10 disposed on the upper side are engaged.

As shown in FIG. 2, there is a gap of about 5 to 20 mm between the metal sidings 10. The end face 12a of the heat insulating material 12 of the metal siding 10 facing this gap is a large number of holes having a hole depth of 30 to 600 μm and a hole number density of 50 to 700 holes / cm ² as schematically shown in FIG. It is a rough surface with holes. In order to make such a rough surface, for example, a metal siding may be manufactured to be slightly larger than a prescribed dimension, and the edge of the metal siding may be cut to a prescribed dimension with a rough cutting blade.

  An end surface 12 a of the heat insulating material 12 is covered with a resin coating layer (hereinafter abbreviated as a coating layer) 5. The coating layer 5 is formed by applying and hardening a resin diluent such as acrylic silicon. When a liquid such as this diluting solution is used, a coating layer is formed according to the unevenness of the heat insulating material, so that the adhesion area with the sealing is increased and the adhesion strength is increased.

The thickness of the coating layer 5 is preferably about 10 to 100 μm. It is preferable that the base material strength (resistance to primer peeling and water breakage) of the coating layer 5 is higher than that of the heat insulating material 12. The tensile strength per unit area of the foamed synthetic resin constituting the heat insulating material 12 is 0.5 to 1.5 kgf / cm ² , and the tensile strength per unit area of the coating layer 5 is 1.5 to 4.5 kgf. / Cm ² , preferably about 1 to 3 kgf / cm ² higher.

  A back-up material 3 made of foamed polyethylene, foamed EPDM or the like is pushed into the gap between the metal sidings 10, and a sealing material 4 made of modified silicon-based or epoxy-modified urethane is filled on the front side.

  In order to obtain this construction structure, the coating layer 5 is formed by applying a resin liquid to the end face of the metal siding 10. A moisture permeable waterproof paper 2 is attached to the front surface of the pillar 1 and each metal siding 10 is fastened to the pillar 1 with nails, screws, etc., and then a backup material 3 is filled in the gap between the metal sidings 10 and 10, and then a sealing material 4 is filled. The coating layer 5 may be formed in advance on the metal siding 10 by applying a resin liquid to the end face of the heat insulating material at the manufacturing plant of the metal siding 10. The metal siding 10 may be a rough cutting blade in accordance with the site dimensions at the construction site, and in this case, a resin liquid is applied to the cut end surface at the site.

  In this heat insulating material construction structure, since the end surface of the heat insulating material 12 of the metal siding 10 is covered with the resin coating layer 5 and the sealing material 4 is filled between the metal sidings 10, the heat insulating material 12 is It is prevented from being deteriorated by ultraviolet rays and water, and insects from entering. Further, since the end surface of the heat insulating material 12 is a rough surface, the surface of the coating layer 5 covering the heat insulating material 12 is also a rough surface, the contact area between the sealing material 4 and the coating layer 5 is increased, and the sealing material 4 and the coating layer. Adhesive strength with 5 and durability become high. In particular, by making the hardness of the coating layer 5 higher than the hardness of the heat insulating material 12, the adhesion strength of the sealing material 4 can be increased, and the elongation rate and tensile strength of the sealing material 4 can also be improved.

  In this embodiment, since the sealing material 4 is filled after the backup material 3 is filled, the amount of the sealing material 4 used is small. However, the backup material 3 may be omitted and the sealing material 4 may be filled to the back of the gap.

  In the above embodiment, the sealing material 4 is filled in the gap between the metal sidings 10, 10, but the end surface of the metal siding 10 faces a protrusion from the wall, such as a window frame, door frame, or duct. The present invention can also be applied when arranged. Also in this case, the resin coating layer 5 is provided on the end face of the heat insulating material 12 of the metal siding 10, and a back-up material is filled between the end face of the metal siding 10 and the protrusion as necessary, and then a sealing material is filled. .

  Although metal siding is used in the above embodiment, the present invention can also be applied to a case where a plate-like heat insulating material is attached to a wall and a finishing process such as tiling is applied to the front surface of the heat insulating material.

(A) A figure is a section perspective view showing construction construction of metal siding concerning an embodiment, and (b) figure is a BB line sectional view of (a) figure. It is a perspective view which shows the installation structure of the metal siding before providing a backup material and a sealing material.

Explanation of symbols

1 pillar 3 backup material 4 sealing material 5 coating layer 10 metal siding 12 heat insulating material 12a end face of heat insulating material

Claims (9)

A plate-like heat insulating material made of a synthetic foam resin, wherein the end surface is a rough surface having a large number of holes having a hole depth of 30 to 600 μm and a hole number density of 50 to 700 holes / cm ^2. .   The heat insulating material according to claim 1, wherein a metal plate is provided on at least one plate surface.   The heat insulating material according to claim 1 or 2, wherein a coating layer made of a resin is provided on an end face of the heat insulating material.   The heat insulating material according to claim 3, wherein the hardness of the coating layer is higher than the hardness of the foamed synthetic resin. In the insulation construction method of attaching insulation to the wall,
After applying a resin coating to the end face of the heat insulating material according to claim 1 or 2, a plurality of the heat insulating materials are attached to the wall with a gap between each other,
A heat insulating material construction method comprising filling a sealing material in a gap between the heat insulating materials. In the insulation construction method of attaching insulation to the wall,
After applying the resin coating to the end face of the heat insulating material according to claim 1 or 2, the heat insulating material is attached to a wall, and at this time, the end face of the heat insulating material is disposed in close proximity to a protrusion from the wall. ,
A heat insulating material construction method, wherein a sealing material is filled in a gap between the protrusion and the heat insulating material. In the insulation construction method of attaching insulation to the wall,
A heat insulating material according to claim 3 or 4 is attached to a wall, and at this time, the end surface of the heat insulating material is disposed in close proximity to a protrusion from the wall,
A heat insulating material construction method, wherein a sealing material is filled in a gap between the protrusion and the heat insulating material. In the insulation construction structure where the insulation is attached to the wall,
A heat insulating material construction structure in which a plurality of heat insulating materials according to claim 3 or 4 are arranged side by side and attached to a wall with a gap between the heat insulating materials,
A heat insulating material construction structure characterized in that a sealing material is filled in a gap between the heat insulating materials. In the insulation construction structure where the insulation is attached to the wall,
A heat insulating material construction structure in which the heat insulating material according to claim 3 or 4 is attached to a wall, and an end surface of the heat insulating material is disposed in close proximity to a projecting object from the wall,
A heat insulating material construction structure, wherein a sealing material is filled in a gap between an end face of the heat insulating material and the protrusion.

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