JPH047425B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an external rooftop insulation structure, and in particular, to a structure in which insulation boards are laid out in rows and columns on the upper surface of a building frame, and a space is provided above the insulation boards to install a roof panel. This invention relates to improvements to outdoor rooftop insulation structures that are laid out in rows and columns.

The perceived temperature in a room is affected not only by room temperature but also by radiant heat from the ceiling. For this reason, particularly for concrete buildings, an external rooftop insulation structure has been proposed in which insulation boards are laid over the upper surface of the roof. This insulation structure keeps the entire building warm and alleviates the cold, especially in the early morning hours.In addition, it blocks direct sunlight in midsummer and uses appropriate ventilation and shading to prevent heat accumulation in the roof slab, and prevents heat build-up during the night due to hot flashes. It can relieve the sweltering heat.

This external rooftop insulation structure generally has a unitized structure that facilitates installation and removal and can be easily installed not only in new buildings but also in existing buildings. At the same time, a space (upper air layer) is provided above the insulation board, and roof panels are laid out in a row and a row, and the corners of adjacent panels are laid out. It has a structure in which it is assembled using a center joiner and a joiner cap, and end blocks are provided around the periphery of the panel layer.

In this kind of outdoor rooftop insulation structure, a space is created on the top of the building frame and insulation boards are laid down.
The double insulation structure consisting of an air layer and an insulation board increases the insulation effect, and even if water gets into the insulation board due to rain or snow, the air layer allows natural ventilation to dry it out. It has the advantage of being able to maintain high thermal insulation performance over a long period of time.

However, in conventional outdoor rooftop insulation structures of this type, each roof panel (usually made of concrete) that is laid on top of the insulation board has the problem that when strong winds such as a typhoon occur, damage occurs on the top and bottom of the panels. There is a risk that it will be sucked upward due to the negative pressure suction force generated by the pressure difference, that is, the high-speed airflow on the top surface, and it will peel off or scatter. It is necessary to reliably prevent such panel peeling from the standpoint of safety.

An object of the present invention is to provide an outdoor rooftop insulation structure that can eliminate the possibility of panels peeling off or flying off by reducing the pressure difference between the top and bottom of the panels during strong winds.

A feature of the present invention is that an opening is formed in the end block provided at the periphery of the roof panel layer to communicate the space under the panel with the outside, thereby reducing the pressure difference between the top and bottom of the panel during strong winds. The purpose is to achieve the above objectives.

That is, according to the present invention, insulation boards are laid out in a row and a row on the upper surface of a building frame, and a space is provided above the insulation board, and roof panels are laid out in a row and a row, and the corners of adjacent panels are laid out in a row and a row. In an outdoor roof insulation structure consisting of corner sections fastened by a center joiner and a jointer cap, and end blocks provided at the periphery of the panel layer, the end blocks connect the space below the roof panel and the outside. By forming an opening that communicates with the roof panel, there is provided an outdoor roof insulation structure that is characterized in that it aims to reduce the pressure difference between the top and bottom of the roof panel during strong winds.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

1 to 3 are diagrams showing one embodiment of the present invention.

In these drawings, a waterproof layer 2 is provided on the upper surface of a building frame 1 that forms the roof slab of a concrete building, and a space (lower air layer) 3 is provided above this waterproof layer, in which a plurality of insulation boards are provided. A plurality of roof panels 6 are arranged in a row and a row, with a space (an upper air layer) 5 provided above them.

The heat insulating board 4 is made of a plastic foam such as hard urethane foam, and is formed as a unit board having dimensions of, for example, 80 cm in length and width and 2 to 5 cm in thickness.

The roof panel 6 is made of concrete, for example, with a length and width of 40 cm and a thickness of about 4 to 6 cm.
However, in the illustrated example, the heat insulating board 4 has the same vertical and horizontal dimensions (width) as the panel 6.

Each of the insulation boards 4 is supported at its corners (and also at the center if it is wider than the roof panel) by a center jointer 7 (see Figure 2), and this insulation layer (a layer of insulation boards 4) ) is supported by concrete end blocks 8.

Each roof panel 6 is connected to the adjacent roof panel at its corner by the center joiner 7 and joiner cap 9, and the periphery of this layer (the layer in which the roof panels 6 are laid) is is provided with an end block 8,
It is supported by the end block in a state where it is pressed down from above or in a state where it is prevented from floating.

The center jointer 7 is placed on the upper surface of a building frame (in the illustrated example, a waterproof layer 2 provided on the upper surface of the building frame) 1, and its panel support surface is vertically adjustable, so that the center jointer 7 is placed on the upper surface of the building frame 1. Even if there are uneven surfaces, each panel 6 can be laid down at the same height.

In the illustrated example, the end block 6 is made of reinforcing bars 1 having a length that substantially matches the length of the side of the panel 6.
This end block is formed with an opening 11 that communicates the space below the panel 6, that is, the upper air layer 5, with the outside. Note that the reinforcing bar 10 may be omitted and the end block 8 may be installed depending on the case.

The openings 11 are arranged so that the wind can flow not only to the upper surface but also to the lower surface of the roof panel 6 during strong winds. is formed. The periphery of the outer opening of the opening 11 can also be curved and lapped.

When a strong wind passes over the top surface of the roof panel 6, the panel 6 may be sucked upward by the negative suction force generated by the high-speed airflow, causing it to peel off or scatter. However, according to the illustrated structure, the end block By forming the opening 11 in the panel 8, it is possible to reduce the pressure difference between the upper and lower surfaces of the panel 6 during strong winds, thereby reliably preventing the panel from peeling off or scattering. The total area, shape, arrangement, etc. of the openings 11 are appropriately determined in consideration of the degree of elimination or reduction of the pressure difference.

Note that the reference numeral 12 in FIG. 1 indicates a drain port for discharging water accumulated on the waterproof layer 2 (or the upper surface of the building frame 1).

According to the embodiment described above, since the end block 8 is provided with the opening 11 that communicates the outside with the space below the roof panel, the pressure difference between the top and bottom of the panel can be eliminated or reduced even in strong winds. This makes it possible to prevent the panel 6 from lifting, peeling off, or scattering in the event of a typhoon, etc., and provides an outdoor rooftop insulation structure with excellent reliability and safety.

FIG. 4 is a diagram showing another embodiment of the present invention.

In this embodiment, an end block 8 having an abbreviated cross section is used, and an opening 11 is formed in its inner wall. That is, the shape and structure of the end block 8 are different from those of the previous embodiment, and the other parts are substantially the same.
Therefore, corresponding parts are indicated by the same reference numerals, and detailed explanation thereof will be omitted.

According to this embodiment, the space (upper air layer) 5 below the panel 6 is communicated with the outside via the opening 11 of the end block 8 and the open top groove, so it is similar to the case of the previous embodiment. , it is possible to reduce the pressure difference between the upper and lower surfaces of the panel during strong winds. Therefore, as in the case of the above-mentioned embodiment, it is possible to prevent the panel 6 from lifting, peeling off, or scattering, and it is possible to obtain an outdoor rooftop insulation structure with excellent reliability and safety.

The number, total area, shape, arrangement, etc. of the openings 11 in this embodiment can be appropriately determined in consideration of the degree of elimination or reduction of the pressure difference.

In addition, in each of the above embodiments, the end block 8
Although a structure in which relatively short units are connected by reinforcing bars 10 is used, longer and relatively heavy units may also be used, and in that case, the reinforcing bars 10 may be omitted.

As is clear from the above description, according to the present invention, it is possible to prevent roof panels from peeling off or scattering, and it is possible to obtain an outdoor rooftop insulation structure with excellent reliability and safety.

[Brief explanation of drawings]

Fig. 1 is a partial cross-sectional perspective view showing an embodiment of the rooftop outdoor heat insulation structure according to the present invention, Fig. 2 is a longitudinal sectional view taken along the line - in Fig. 1, and Fig. 3 is a roof in Fig. 1. FIG. 4 is a partially sectional perspective view showing another embodiment of the outdoor roof insulation structure according to the present invention. 1...Building frame (rooftop slab of a concrete building), 2...Waterproof layer, 3...Space (lower air layer), 4...
Insulation board, 5... Space (upper air layer), 6... Roof panel, 7... Center joiner, 8... End block, 9... Joiner cap, 10...
Rebar, 11...opening.

Claims (1)

[Claims] 1. Lay insulation boards arranged vertically and horizontally on the upper surface of the building frame, create a space above the insulation boards, lay roof panels arranged horizontally and vertically, and use center jointers and jointers to connect the corners of adjacent panels. In an outdoor rooftop insulation structure constructed by fastening with a nape cap and arranging end blocks around the periphery of the panel layer, an opening is formed in the end block to communicate the space below the roof panel with the outside. This is an outdoor rooftop insulation structure that is characterized by reducing the pressure difference between the top and bottom of the roof panel during strong winds.