JPH0464652A - Ventilator for superstructure - Google Patents

Abstract

PURPOSE:To bring a ventilating function into full play by installing a ventilating void, interconnecting the inside of a plate to the outdoor side, in a cope backing member at the lower side of a cope installed in the peripheral edge of a super- structure where plates are spread over. CONSTITUTION:A coping backing member 5 consisting of a section U-shaped channel member 6 and a steel frame 7 solidly attached tight to the outdoor side is set up in space between a coping 4 and a column in parallel with this coping 4. Then, a vertical laminated plate 9-1 is attached to a groove part 8 opened to the outdoor side of the steel frame 7 and another laminated plate 9-2 to a top face and an out corner part of the steel frame 7, respectively. In succession, a ventilating void 11 being opened in the outdoor side downward direction is installed in space between overhang parts 10-1, 10-2 horizontally overhung from an edge of the laminated plate 9, and a through hole 12 is made at a lower side of the steel frame 7. With this constitution, a ventilating function can be displayed without penetrating any rainwater.

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to ALC boards (lightweight aerated concrete boards), PC
This relates to a ventilation system for a building made of boards (precast concrete boards) and other board materials laid out side by side.

[Problem to be solved by the invention]

Conventionally, in buildings where the steel frame is lined with planks such as ALC boards, in order to ventilate the inner space of the planks,
It was necessary to provide ventilation holes such as ventilation holes in the side wall panels. However, drilling ventilation holes and the like in the side walls of buildings is time-consuming and undesirable as it spoils the exterior appearance.

This invention was made in view of the above circumstances. The purpose is to propose a ventilation system for buildings that does not expose ventilation holes such as ventilation holes on the outside of the building, does not damage the appearance, and has excellent workability.

[Means to solve the problem]

This ventilation system for a building is constructed by installing a ventilation gap that communicates the inside of the board with the outdoors, which is shielded by the Kasagi base material under the Kasagi provided at the periphery of the building made of board materials. It is characterized by being located at

〔Example〕

This will be explained below with reference to the embodiments shown in the drawings. In Fig. 1.2, a cylindrical support 3, whose lower end is fixed to an H-shaped steel beam 2 of the steel frame, protrudes from the periphery of the roof of a building in which ALC boards 1 are lined up on the roof and side walls. A Kasagi 4 is attached to the upper part.

A Kasagi base material 5 is arranged between the Kasagi 4 and the pillar 3 in parallel with the Kasagi 4. The Kasagi base material 5 consists of a channel material 6 having a U-shaped cross section and a steel frame material 7 integrally fixed to the outdoor side of the channel material 6.

The steel frame 7 has a groove 8 that opens toward the outdoors, and has a vertical laminate 9-1 extending over the opening surface of the groove, and a laminate 9-2 attached across the upper surface and the protruding corner of the steel frame. are attached, and a slit-shaped ventilation gap 11 that opens downward to the outdoor side is provided between overhangs 10-1 and 10-2 that extend horizontally from the ends of these laminates 9. In addition, the groove portion 8
A through hole 12 is bored in the steel frame 7 at the lower side of the
There is a ventilation gap 11 between the inside and the outdoor side of the ALC boards 1 laid out side by side.
The ventilation gap 11 communicates with the groove 8 and the through hole 12.
is in the shade of the side part of the hanging Kasagi 4, and is in a shielded position that is not directly exposed to the outdoors.

In FIG. 2, an adhesive butyl tape 13 is inserted between the steel frame 7 and the laminate 9-2, and a backing material 15 is sandwiched between the bracket 14 of the Kasagi 4 and the laminate 9-2. It is secured with screws.

Further, a protective material 16 is packed between the lower end of the laminate plate 9-1 and the upper end of the ALC board 1 which hangs downward, and a heat insulating material 17 is adhered to the inner surface of the channel material 6.

The laminate 9 is made by laminating a vinyl chloride resin on the surface of an aluminum plate or a steel plate, and has corrosion resistance and waterproof properties, and has excellent adhesion to a vinyl chloride resin waterproof sheet.

As shown in Figures 3 and 4, the support 3 is attached to the H-shaped steel beam 2 with the bolt 1.
8 is fastened and protrudes, and the Kasagi base material 5 is attached to the support 3.
It is fixed and installed on top of. That is, as shown in FIG. 4, a step 19 is created at the end of the channel material 6 and the support 3
Place the rectangular seat plate 21 on top of the seat plate 20 at the upper end, tighten the countersunk screws 22, and tighten the channel material 4.
Can be installed with the top surface as one plane.

The Kasagi part of this building has the following waterproof structure and none. That is, as shown in FIG. 5, a waterproof sheet 24 extending from above the roof insulation layer 23 is laid on the upper surface of the Kasagi base material 5. This waterproof sheet 24 is laid by fixing a cross-sectional laminate 25 to the rising part of the roof, which is adhesively fixed to one end edge, and its tip extends to the laminates 9 to 2 on the upper surface of the steel frame 7. . Furthermore, the edges of a waterproof sheet 26 laid on the rooftop overlap and are adhesively bonded onto the cross-sectional laminate 25.

[Action and effect of the invention]

The ventilation system for this building has a ventilation gap in the Kasagi base material on the lower side of the Kasagi that communicates the inside of the laid boards with the outside, and this gap is shielded by the Kasagi and is not directly exposed to the outdoors. Therefore, this device can perform its ventilation function without the risk of appearing on the outside and damaging the appearance or allowing rainwater to enter. Also,
By providing ventilation gaps in the Kasagi base material in advance, the ventilation system can be assembled along with the construction of the Kasagi without having to perform drilling work on site.

[Brief explanation of drawings]

The drawings show embodiments of the invention, and include Section 1.3.
The figure is a cross-sectional view of the periphery of a building with a built-in ventilation system, Figure 2 is an enlarged view of the main parts of Figure 1, Figure 4 is a partial cross-sectional perspective view of the Kasagi base material in a fixed state, and Figure 5 FIG. 2 is a partially cross-sectional perspective view of the waterproof sheet in its installed state. 1...ALC board, 2...H type w! Beam, 3... Support, 4... Kasagi, 5... Kasagi base material, 6... Channel material, 7... Steel frame material, 8... Groove, 9... Laminated board, 10 ... Overhang, 11... Ventilation gap, 12...
・Through hole, 13... Butyl tape, 14... Bracket, 15... Backing material, 16... Protective material, 17
...insulation material, 18...bolt, 19...step, 2
0...Seat board, 21...Square seat board, 22...Surface screw, 23...Rooftop insulation layer, 24...Waterproof sheet, 2
5--Cross-sectional laminate, 26-Rooftop waterproof sheet. Figure Figure

Claims (1)

[Claims] (1) A ventilation gap that communicates the inside of the board with the outdoors is provided in the Kasagi base material below the Kasagi provided at the periphery of a building made of board materials, at a position shielded by the Kasagi. A ventilation structure for a building characterized by: