JP3103575U - Double-sided net integrated insulation - Google Patents

Abstract

[PROBLEMS] To provide strong mortar layers 9 and 10 on both sides of a foamed heat insulating board 1 without using anchor bolts or the like in an external heat insulating method, and a surface covering material even if a part or all of the board is broken. It is intended to provide a heat insulating material 7 capable of preventing the falling of an exterior material 12 such as 10 and a tile.
SOLUTION: A mesh-shaped fiber net body 2, 3 of an arbitrary shape made of a woven cloth or a non-woven cloth is disposed on both sides of a heat insulating board 1 made of a foamed resin, and the double-sided net body is penetrated through the heat insulating board at a predetermined interval. It is sewn or adhered and integrated by the thread 5, and is integrated together with the adhesive 9 and the surface covering material 10 after construction.
[Selection diagram] Fig. 4

Description

This invention relates to a heat insulating material used for an external heat insulating method.

2. Description of the Related Art A method is known in which a heat insulating board such as a foamed styrene board is bonded and stuck to the surface of a concrete body, a mortar layer in which a net material is embedded is provided on the surface side of the board, and a decorative material is stuck. However, since the foam insulation board is weak to tensile force and breaks easily, the net material buried on the exterior side can reinforce the mortar layer serving as the base material, but prevents the exterior material from falling off due to the breakage of the board It is not possible.

For this reason, after curing the base material including the net material, anchor bolts are driven into the frame to fix the base material and the heat insulating board. Furthermore, since the foam insulation board has a low strength, it is not possible to form a thick mortar for application, the impact resistance is not sufficient, and there is a problem that it cannot be constructed with a heavy finishing material.

JP 2003-13583 A (FIG. 1)

According to the present invention, it is possible to form a strong mortar layer on both sides of the heat insulating board without using anchor bolts and the like, and to prevent the surface covering material and the exterior material from dropping even if part or all of the board is broken. Materials.

The heat insulating material of the present invention is obtained by providing a fiber net made of work cloth or non-woven fabric on both sides of a foamed heat insulating board, and connecting the net bodies at intervals of 30 to 100 mm to integrate the three members.
The foam board is a conventional foam synthetic resin plate such as styrofoam or styrene foam, and the fiber net is a woven or coarse non-woven fabric (including a flat-mesh mesh) such as alkali-resistant glass, vinylon, polyester, nylon, and carbon fiber. Can be used.
Size of the mesh of the net member is preferably 25mm ² ~900mm ^2, mesh shape is arbitrary, such as triangular 6 corners. In addition, it is preferable that the net body is loosely arranged and connected so that a space is formed between the net body and the heat insulating board surface except for the connecting portion.
The connecting thread that penetrates the heat insulating board and connects both net bodies is a thread or a string body of the same or different fiber as the net material, and the penetrating connection method may be continuous stitching with one thread, or a short thread. May be penetrated at appropriate intervals, and both ends may be bonded to each other. Further, in the case of a woven fabric, it can be tangled around the intersecting portions of the weaving yarns on both sides and reciprocated so as to be connected in a ring shape, or can be connected diagonally alternately like crossing. The interval between the connecting yarns may be about 30 to 100 mm.
The fibers constituting the net body must be bonded to the adhesive material and the surface covering material, but it is not necessary to consider the adhesiveness of the connecting yarn to these.

In addition to eliminating the need for on-site net installation work, the heat insulation material according to the present invention, after construction, has both net bodies buried in each mortar layer to reinforce the mortar layer and to attach the mortar layer via a double-sided net. Since the three members of the foam board and the covering mortar layer are integrated, even if the temporary board is destroyed, the exterior material does not fall and is safe. Further, since the anchor bolts serving as heat bridges are not used, the strength of the heat insulating material does not decrease, which is advantageous. In addition, it is possible to apply the mortar with a thickness about twice as large as the conventional mortar thickness of about 5 mm, which not only improves the impact resistance and fire resistance, but also provides a relatively heavy finish by the thick mortar layer. Wood can also be used.

In the figure, 1 is a flat heat insulating board made of a foamed synthetic resin, and 2 and 3 are nets placed on the surface of the board. Reference numeral 4 denotes a continuous connecting thread, which is formed by sewing the front and back net bodies to the board at intervals of 3 to 10 cm. FIG. 3 shows another example in which short yarns 5 penetrate a board and both end portions 6 are bonded to a net body. In this case, a small piece for a bead or a washer may be inserted into both ends of the short thread to form a space G between the board and the net. 7 is the heat insulating material of the present invention.
In FIG. 4, reference numeral 8 denotes a frame, and 9 denotes a bonding material such as a polymer cement mortar, which is formed by applying mortar to the surface of the frame 8 and / or one surface of a heat insulating material in advance.
Reference numeral 10 denotes a surface coating material applied from the outer surface side, and may not have the same composition as the adhesive material mortar. 11 is a finishing material, 12 is an exterior material such as a tile.

(Test example)
A foamed styrene board ("Styrofoam 1B" manufactured by Dow Chemical Industries) having a thickness of 30 mm and a square of 600 mm is used as the foamed heat insulating board 1, and an alkali-resistant glass net ("TD10X10" manufactured by NEC Corporation) having the same area on both sides (mesh size) 10 mm × 10 mm) is placed as a net 2 (3), and an aramid fiber (“Twaron Filament Yarn NM” manufactured by Teijin) is integrated as a connecting yarn 5 at a pitch of 30 mm both vertically and horizontally as shown in FIG. Was prepared.
A polymer cement mortar adhering material ("NS bullet mol" manufactured by Nippon Kasei) was applied to one side of the heat insulating material to a thickness of 5 mm so that the net was buried, and was pressed and adhered to the surface of the concrete plate.
One day after bonding, a surface coating material ("NS Polymer Mix # 20" manufactured by Nippon Kasei) was applied to the surface of the heat insulating material, and the surface was smoothed to a thickness of 5 mm.

As a comparative example, one having no connecting yarn (B) and one having no net body (C) were similarly manufactured using the same material.
A cut of 40 mm × 40 mm square with a depth of 2 mm was made in the covering material of each heat insulating material, and this square portion was attached to a steel attachment, and the tensile strength and elongation strain were measured by Instron. there were.

Perspective view of the thermal insulation of the present invention Partial cross-sectional view of thermal insulation with two-sided net stitched together Partial cross-sectional view of thermal insulation with short yarns connected on both sides Model cross section in construction state Graph showing tensile test results

Explanation of reference numerals

REFERENCE SIGNS LIST 1 foam resin board 2, 3 net 4, 5 connecting thread 6 joining end 7 heat insulating material 8 frame 9 sticking material 10 surface coating material

Claims (3)

A mesh-like fiber net body having an arbitrary shape made of a woven cloth or a non-woven cloth is disposed on both sides of the heat insulating board made of a foamed resin, and the net bodies on both sides penetrate the heat insulating board at intervals equal to or greater than the mesh interval of the net. A heat insulating material that is sewn or bonded integrally with a connecting thread. The heat insulating material according to claim 1, wherein the double-sided net is disposed so as to maintain a space between the net and the surface of the heat insulating board except for a connecting portion. Magnitude 25 mm ² ～900Mm ² net mesh spacing of the connecting yarn is formed in a range of 30~100mm claim 1 or 2 thermally insulating material, according.

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