JPH0868164A - Roof fire-resistant outer heat insulating structure for metal roof board - Google Patents

Abstract

PURPOSE: To provide a roof fire-resistant heat insulating structure capable of reducing man-hours by stretching a nonflammable dew condensation preventing board beneath a metal roof board, a fiber board-like heat insulating outer fire-resistant material on the roof board, and a waterproof layer on it. CONSTITUTION: A nonflammable/quasi-nonflammable dew condensation preventing material 12 made of polyester nonwoven fabric-lined rock wool felt, for example, is stretched beneath a metal roof board 10. A fiber board-like heat insulating fire-resistant material 14 lined with a foam heat insulating fire- resistant material made of a phenol foam-lined rock wool board, for example, is stretched on the upper board 10 of the metal roof board 10 to form a roof fire-resistant heat insulating structure. After the fiber board-like heat insulating fire-resistant material 14 is coated with a waterproof layer, its lower section 10a is fastened to a main house 18 by fastening tools 20. The fastening tools 20 are fireresistance-covered with a calcium silicate board 22 according to the height from the floor surface to the main house 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof fireproof outer heat insulating structure for a metal roof plate constructed by adopting a dry method.

[0002]

2. Description of the Related Art As a roof fireproof outer insulation structure of this kind of metal roof plate, there is no existing roof fireproof structure, but as a roof fireproof structure of a metal roof plate, as shown in FIG. A fireproof coating material 32 such as rock wool is sprayed on the lower surface side of 30 by a wet method, and a waterproof layer 34 is provided as a finish on the upper surface side of the metal roof plate. Further, as shown in FIG. 4, a synthetic rubber sheet 42 is adhered to the upper surface side of the concrete or mortar 36 by the wet method via a primer 38 and a heat insulating material 40.

[0003]

However, in the roof fireproof structure of the metal roof plate as shown in FIG. 3, since the fireproof coating material is sprayed by the wet method, the work is troublesome and it is difficult to shorten the work period. However, there is a problem in that it is easily peeled off by vibration. Further, in the conventional technique as shown in FIG. 4, since the wet method is adopted, the work is troublesome and it is difficult to shorten the work period. The present invention
This is done in view of the problems of the conventional technology as described above, and since the roof fireproof outer heat insulating structure is formed by adopting the dry construction method, it is possible to shorten the working time and reduce the man-hours. It is intended to provide a roof fireproof outer insulation structure for boards.

[0004]

In order to achieve the above object, the roof fireproof outer heat insulating structure for a metal roof plate of the present invention has a non-combustible / semi-incombustible dew condensation preventing material on the lower surface side of the metal roof plate. Is stretched by a dry method, and at the same time the upper side of the metal roof plate is lined with foaming heat insulation / fireproof material.
A fireproof material is stretched by a dry method, and a waterproof layer is provided on the upper surface of this fibrous plate heat insulating / fireproof material.

In a preferred embodiment of the present invention, a polyester nonwoven stretched rock wool felt is stretched on the lower surface side of the metal roof board by a dry method, and a phenol foam lined rock wool board is placed on the upper surface side of the metal roof board. Is stretched by a dry method, and a waterproof sheet is attached to the upper surface of this phenol foam-lined rock wool board.

[0006]

According to the present invention, the dew condensation preventing material having noncombustibility and semi-combustibility is stretched on the lower surface side of the metal roof plate by the dry construction method. On the upper surface side of the metal roof plate, a fibrous plate-shaped heat insulating / refractory material lined with foamable heat insulating / refractory material is stretched by a dry method. A waterproof layer is provided on the upper surface of the fibrous plate-shaped heat insulating / refractory material.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic front view showing an embodiment of a roof fireproof outer heat insulating structure of a metal roof plate according to the present invention, and FIG. 2 is a side view of the same.

In each drawing, reference numeral 10 denotes a metal roof plate (thickness: 1 mm) made of a zinc iron plate such as an eye deck roof 30 (trade name of Toho Sheet Frame Co., Ltd.) having a flat upper surface. 12 is this metal roof plate 10
Is a non-combustible / semi-incombustible dew condensation prevention material made of, for example, polyester non-woven fabric stretched rock wool felt (thickness: 3 mm) stretched by a dry method on the lower surface side. Reference numeral 14 denotes, for example, a phenol foam lined rock wool board (thickness: 25, which is stretched on the upper surface side of the metal roof board 10 by a dry method.
mm) is a fibrous plate-shaped heat insulating / refractory material lined with a foamable heat insulating / refractory material. The phenolic foam-lined rock wool board 14 is a rock wool board 14a lined with phenol foam 14b. Reference numeral 16 is a waterproof layer such as a butyl rubber sheet (thickness 1 mm) coated on the upper surface of the phenolic foam-lined rock wool plate 14.

The waterproof layer 16 may be a waterproof plastic sheet, an asphalt sheet, or the like.

According to such a roof fireproof outer insulation structure,
Since it is manufactured by the dry method as a whole, the working time can be shortened, the number of steps can be reduced, and the structure is robust without causing peeling. In addition, surface dew condensation and internal dew condensation can be prevented.

On the lower surface side of the metal roof plate 10, a polyester non-woven cloth-clad rock wool felt 12 which is a non-combustible / semi-incombustible dew condensation preventing material is stretched, so that a fire resistance effect can be obtained and a metal can be obtained. Condensation prevention measures will be taken on the lower surface of the roof plate 10.

In the figure, 18 is a purlin (including a beam and a beam), and 20 is a fastener. The lower part 10 a of the metal roof plate 10 is installed on the purlin 18 by the fastener 20. Reference numeral 22 is a calcium silicate plate, and the fastener 20 is fireproof coated on the lower portion of the metal roof plate 10. When the calcium silicate plate 22 is coated, the height from the floor surface to the purlin is 4 m or less, and when the height is 4 m or more, it is unnecessary.

[0013]

Industrial Applicability The roof fireproof outer heat insulating structure for a metal roof plate of the present invention comprises a non-combustible / semi-incombustible dew condensation preventing material which is stretched on the lower surface side of the metal roof plate by a dry method. A fiberboard insulation / fireproof material lined with foamy insulation / fireproof material is stretched on the upper surface side of the roof plate by a dry method, and a waterproof layer is provided on the upper surface of this fiberboard insulation / fireproof material. because there is,
By thus forming the roof fireproof outer heat insulating structure by the dry method, the working time can be shortened and the number of steps can be reduced. Also, structurally,
It has excellent effects such as being firm without causing peeling and being capable of preventing surface dew condensation and internal dew condensation.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of a roof fireproof outer heat insulating structure for a metal roof plate of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a perspective view showing a conventional example.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 10 Metal Roofing Board 12 Polyester Nonwoven Fabric Tension Rockwool Felt 14 Phenolic Foam Lining Rockwool Board 14a Rockwool Board 14b Phenol Foam 16 Butyl Rubber Sheet (Waterproof Layer)

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Osamu Yamamoto 9-10 Tomizawa-cho, Nihombashi, Chuo-ku, Tokyo Inamura Building Nitto Boseki Co., Ltd.

Claims (2)

[Claims] 1. A non-combustible / semi-incombustible dew condensation preventing material is stretched on a lower surface side of a metal roof plate by a dry construction method, and a foaming heat insulating / refractory material is backed on an upper surface side of the metal roof plate. A roof fireproof outer insulation structure of a metal roof plate, which is characterized by installing a stretched fibrous plate-shaped heat insulation / refractory material by a dry method, and providing a waterproof layer on the upper surface of this fibrous plate insulation / fireproof material. 2. A polyester non-woven fabric stretched rock wool felt is stretched on the lower surface side of the metal roof board by a dry method, and a phenol foam lined rock wool sheet is stretched on the upper surface side of the metal roof board by a dry method. However, the roof fireproof outer insulation structure of the metal roof plate is characterized in that a waterproof sheet is attached to the upper surface of this phenol foam lined rock wool plate.