JPH11131700A - Metal composite roofing material - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To easily and reliably construct a metal composite roof having fire resistance, heat insulation, dew proofing, and sound absorption functions. SOLUTION: A folded metal plate 1 to be used for a roof of a building is used as a base material, and at least one surface of a mat-shaped or felt-shaped rock wool heat insulating material 3 is covered with a flexible reinforcing surface covering sheet 4. Insulation mat 2 formed
Is attached to the metal folded plate 1 with the reinforcing surface covering sheet 4 as the indoor side surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal composite roofing material having a fire-resistant, heat-insulating, dew-proof, and sound-absorbing function using a metal folded plate as a base material for a roof of a building structure.

[0002]

2. Description of the Related Art Conventionally, when dew condensation is concerned on a metal folded plate roof, the most common method for preventing dew condensation is as follows.
There is a structure in which a sheet-like heat insulating material for dew condensation prevention is arranged on the indoor side of the metal folded plate, but there is a method of laying a heat insulating material under the metal folded plate on site to provide a more heat insulating function, Japanese Unexamined Patent Publication No. 3-240 discloses a structure in which a glass fiber heat insulating material is disposed on the indoor side surface of a folded metal plate and the surface is covered with a reinforcing sheet, which can exhibit heat insulation and sound absorbing performance for a long period of time. Further, as a higher performance than the above-mentioned conventional technology, a structure in which a folded metal plate is double-layered, an airtight material is filled therebetween, and a glass fiber heat insulating material is provided is implemented.

[0003]

A conventional structure in which a sheet-like heat insulating material for preventing dew condensation is merely disposed on the indoor side of a folded metal plate is effective in preventing dew condensation, but is not sufficient in heat insulation performance. It cannot be said that the indoor thermal environment can be greatly improved.
Therefore, there is a method of laying the heat insulating material on the main house in advance and then installing the folded metal plate to improve the heat insulation performance.However, the work time at high places for laying the heat insulating material increases, so the construction period becomes longer, The performance is likely to vary depending on the quality. As a countermeasure, a structure in which a heat insulating material is sandwiched between double metal folded plates has been implemented. In this structure, instead of greatly improving the heat insulating performance, a metal folded plate is arranged on the indoor side, so the sound absorbing performance is improved. And a problem that the weight is increased and the price is high because the metal folded plate is used twice as usual.

In order to solve these problems, there has been proposed a structure disclosed in Japanese Patent Application Laid-Open No. 3-240 in which a glass fiber heat insulating material is disposed on the indoor surface of a folded metal plate and the surface is covered with a reinforcing sheet. When the density and thickness of the glass fiber heat insulating material are increased in order to enhance the heat insulation and sound absorbing performance, when attaching the glass fiber heat insulating material along with the metal folded plate, the bent portion of the metal folded plate is used. Since it becomes difficult to attach the heat insulating material and there is a great risk that the heat insulating material will be peeled off by the spring back even after the application, it is necessary to cut the relevant portion of the glass fiber heat insulating material in advance into a V shape. Because the reinforcing sheet covering the inside is wound beforehand at the end and then bonded, a new problem arises in that the labor for attaching the heat insulating material increases and the management of the bonding surface is not easy. It was.

The present invention has been made to solve the above-mentioned problems of the prior art. A metal composite roof having a fireproof, heat-insulating, dew-proof, and sound-absorbing function can be easily and reliably constructed. A composite roofing material is provided.

[0006]

A metal composite roofing material according to the present invention comprises, as a base material, a metal folded plate provided for a building roof.
A heat-insulating mat formed by covering at least one surface of a mat-like or felt-like rock wool heat-insulating material with a flexible reinforcing surface-covering sheet, and using the reinforcing surface-covering sheet as an indoor surface. It is attached to the above-mentioned folded metal plate.

[0007]

In the present invention, the metal composite roofing material is based on a metal folded plate used for a roof of a building, and at least one surface of a mat-shaped or felt-shaped rock wool insulating material has a flexible reinforcing surface. Since the heat-insulating mat formed by covering with the covering sheet is attached to the above-mentioned folded metal plate with the reinforcing surface covering sheet as the indoor side surface, the heat-insulating mat is folded at the time of attaching. Because it has good followability to the board, there is no need to cut the bent part into a V shape, and the heat insulating mat can be easily attached, eliminating the need for dangerous work of laying the heat insulating material on the main building in advance on site. Thus, the construction can be performed in exactly the same procedure as the ordinary metal folded plate roof construction, and there is little danger that the heat insulating material will be peeled off by springback even after the construction.

[0008]

1 is a sectional view of a metal composite roofing material according to an embodiment of the present invention, FIG. 2 is an enlarged sectional view of an end portion of the metal composite roofing material of the embodiment, and FIG. 3 is a metal composite roofing of the embodiment. It is sectional drawing which shows the edge combination state of a material. In the figure, reference numeral 1 denotes a folded metal plate serving as a base material of a metal composite roofing material, and 1a denotes a hook-shaped flank of the folded metal plate 1. Reference numeral 2 denotes a heat insulating material mat adhered to the indoor side surface of the folded metal plate 1. This heat insulating material mat 2 has a density of 40 to 8 in which one surface is bonded to the indoor side surface of the metal folded plate 1.
It is composed of a mat-like rock wool heat insulating material 3 having a thickness of about 0 kg / m 3 and a thickness of 15 m / m to 100 m / m, and a reinforcing surface covering sheet 4 for covering another surface of the rock wool heat insulating material 3. I have. The width of the reinforcing surface covering sheet 4 is longer than the width of the rock wool heat insulating material 3.

The reinforcing surface covering sheet 4 is a glass cloth 6 having a weight of 200 g / m 2 and a thickness of 0.18 m / m.
And is bonded to the rock wool heat insulating material 3 with the surface of the aluminum foil 3 facing up and covers the rock wool heat insulating material 3. In addition to the glass cloth 6, non-woven fabric, cold gauze, aluminum glass cloth,
Aluminum kraft paper, aluminum glass kraft paper, polyethylene, vinyl chloride, etc. are applied.

The bonding of the heat insulating material mat 2 to the folded metal plate 1 is as follows.
First, a chloroprene rubber-based adhesive is sprayed on the indoor side surface of the metal folded plate 1 at a rate of about 140 g / m 2, and then the reinforcing surface covering sheet 4 of the heat insulating material mat 2 is turned to the front, and the rock wool heat insulating material 3 of the heat insulating material mat 2 Is placed on the indoor side surface of the folded metal plate 1 and crimped. Next, since the width of the reinforcing surface covering sheet 4 is longer than the width of the rock wool heat insulating material 3, as shown in FIG. While covering the side surface of the material 3, the excess portion beyond the coating is not involved in the rock wool heat insulating material 3, and
a, the bonding of the heat insulating material mat 2 to the metal folded plate 1 is completed, and a metal composite roofing material is formed.

Since the rock wool heat insulating material 3 constituting the heat insulating material mat 2 of the metal composite roofing material has a higher heat resistance temperature than the glass fiber heat insulating material, it is not only advantageous in terms of fire resistance but also compared at the same density. In this case, the material is more flexible than the glass fiber heat insulating material, and has good followability to the metal folded plate 1 serving as the base material during the bonding, so that the bonding operation becomes easy, and the rock wool insulating material 3 is spring-backed even after the bonding.
There is less danger of peeling. In many cases, it is not necessary to cut the bent portion into a V shape. In that case,
Further, the attaching operation is simplified. Insulation mat 2
As shown in the correlation graph of the sound absorption coefficient and the frequency due to the difference in the surface material of the rock wool in FIG. 7, the reinforcing surface covering sheet 4 does not significantly impair the sound absorbing performance of the rock wool heat insulating material 3. .

Further, when the end of the reinforcing surface covering sheet 4 in the width direction is adhered to the bulge 1a of the folded metal plate 1, the step of attaching the end of the reinforcing surface covering sheet 4 is extremely simple. It can be performed and the management of the bonding surface is easy. Therefore, the adhesion of the end portion of the reinforcing surface covering sheet 4 is also ensured, which is effective in preventing the layered peeling and falling off of the rock wool heat insulating material 3 during and after the roof construction. This effect is the same for the glass fiber insulation. Further, the reinforcing surface covering sheet 4 is made of a glass cloth 6.
Impervious material made of aluminum foil 5 reinforced with
Since sufficient airtightness can be obtained, the invasion of moisture into the rock wool heat insulating material 3 is prevented, the heat insulating property does not decrease due to dew condensation water, and the performance of the rock wool heat insulating material 3 can be maintained.
This effect is the same for the glass fiber insulation.

2 and 3, the width of the reinforcing surface covering sheet 4 is larger than that shown in FIG.
The hook-shaped hazel portion 1a of the metal folded plate 1 is bonded to the upper surface. When the metal composite roofing material constructed in this manner is constructed, the reinforcing surface covering sheet 4 is reinforced when the widthwise end of the reinforcing surface covering sheet 4 is abutted against the butt 1a as shown in FIG. The heat-insulating mat is formed by mechanically joining the ends 1a, 1a of which the widthwise ends of the surface covering sheet 4 abut against each other and the suspensions 9 fastened to these by bolts 7 and nuts 8. Thus, a metal composite roof having a higher reliability against the peeling of the metal composite 2 is constructed. Reference numeral 10 denotes a cap that covers the hanging member 9. Since the roofing work is performed in the same manner as a normal folded metal roof after constructing the metal composite roofing material in advance, the construction period of the roof using the metal composite roofing material does not become long.

FIG. 4 is a sectional view of a metal composite roofing material according to another embodiment of the present invention, FIG. 5 is an enlarged sectional view of an end portion of the metal composite roofing material of the embodiment, and FIG. 6 is a metal composite roofing material of the embodiment. It is sectional drawing which shows the edge part combination state of a roofing material. This embodiment is different from the embodiment shown in FIG. 1 only in the shape of the lip of the folded metal plate 1, and the structure of the heat insulating material mat 2 adhered to the other folded metal plate 1 is the embodiment shown in FIG. Therefore, the description of the configuration and operation is omitted. 1b is one L-shaped bent portion of the folded metal plate 1 and 1c is the other U-shaped bent portion of the folded metal plate 1. Then, when the metal composite roofing material constructed in this manner is constructed, as shown in FIG. 6, the ends of the reinforcing surface covering sheet 4 in the width direction are adhered to the upper surfaces thereof, and the ends 1b and 1c protrude. When the bent portion 1c is bent to fit both the bent portions 1b and 1c, the ends of the reinforcing surface covering sheet 4 in the width direction are fitted to the bent portions 1b, 1b.
Since it is mechanically joined by c, a metal composite roof having higher reliability against peeling of the heat insulating material mat 2 is constructed.

[0015]

According to the present invention, as described above, a metal composite roofing material is made of a folded metal plate used for a building roof,
A heat-insulating mat formed by covering at least one surface of a mat-like or felt-like rock wool heat-insulating material with a flexible reinforcing surface-covering sheet, and using the reinforcing surface-covering sheet as an indoor surface. Since the heat-insulating mat is adhered to the above-mentioned folded metal plate, the heat-insulating mat does not need to cut the bent portion into a V-shape since the heat-insulating mat has good followability with the folded metal plate at the time of sticking. It is not necessary to lay heat insulation material on the main building in advance at the site, and it is possible to perform construction in exactly the same procedure as ordinary metal folded plate roof construction, and after construction, by springback There is little danger of the heat insulating material being peeled off, and there is an effect that a roof can be obtained which exhibits inexpensive and high fire resistance, heat insulation, dew proofing, and sound absorption functions over a long period of time.

[Brief description of the drawings]

FIG. 1 is a sectional view of a metal composite roofing material according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of an end of the metal composite roofing material of the embodiment.

FIG. 3 is a cross-sectional view showing an end combination state of the metal composite roofing material of the embodiment.

FIG. 4 is a sectional view of a metal composite roofing material according to another embodiment of the present invention.

FIG. 5 is an enlarged sectional view of an end portion of the metal composite roofing material of the embodiment.

FIG. 6 is a sectional view showing an end combination state of the metal composite roofing material of the embodiment.

FIG. 7 is a correlation graph of sound absorption coefficient and frequency depending on the surface material of rock wool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Folded metal plate 1a Haze part 2 Insulation mat 3 Rock wool insulation material 4 Surface coating sheet for reinforcement 5 Aluminum foil 6 Glass cloth

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takako Fukushima 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd.

Claims (1)

[Claims] 1. A mat-shaped or felt-shaped rock wool heat insulating material is formed by covering at least one surface with a flexible reinforcing surface covering sheet using a metal folded plate to be used as a roof of a building as a base material. A metal composite roofing material, wherein the heat insulating material mat is attached to the folded metal plate with the reinforcing surface covering sheet having an indoor surface.