JPH05125773A - Roof panel - Google Patents

Abstract

PURPOSE:To promote heat insulation efficiency and heat retaining efficiency by providing a ventilating layer to the inside of a panel body of a roof panel, and providing opening and shutting valves of form memory alloy respectively to inlet and outlet sections of the ventilating layer. CONSTITUTION:In the case outside temperature is high, an inlet section 5 and an outlet section 6 are automatically put in an open state by opening and shutting valves 7a and 7b made of shape-memory alloy, and radiant heat from roof tiles 3 to the inside of a ventilating layer 4 is exhausted to the outside from the outlet section 6 together with air introduced from the inlet section 5. While, when outside temperature is low, the opening and shutting valves 7a and 7b blockade the inlet section 5 and the outlet section 6 to cut off the current of the air in the ventilating layer 4. According to the constitution, heat insulation efficiency and hear retaining efficiency are promoted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof panel. More specifically, the present invention relates to a new roof panel that can easily realize a roof structure having excellent heat insulating properties.

[0002]

2. Description of the Related Art Conventionally, for roof construction of houses and the like, along with a traditional roof tile construction method, for example, a roof tile (a) is previously arranged integrally on a panel body (a) as illustrated in FIG. A construction method using a roof panel (c) formed by liquefaction is known. This roof panel (c) is, for example, as shown in FIG.
As shown in, it is possible to lift it with a crane and fix it to the roof base (d), and the time and labor required for the work compared to the traditional construction method in which individual roof members are sequentially and separately attached. In addition to being omitted, it has the advantage of improving work safety.

[0003]

However, in the case of a roof structure using such a roof panel (c), the roof panel (c) is placed in the attic space (e) as shown in FIG. 5, for example. The solar heat absorbed by will be radiated directly. For this reason, it is difficult to use such an attic space (e) as a comfortable living space because the indoor temperature thereof is strongly affected by the outside temperature and the weather.

The present invention has been made in view of the circumstances as described above, and provides a roof panel having excellent heat insulation and heat retention performance which can be easily constructed by the same construction method as a conventional roof panel. The purpose is to

[0005]

In order to solve the above problems, the present invention has a ventilation layer in the panel body,
Provided is a roof panel comprising an opening / closing valve made of a shape memory alloy in each of an intake part and an exhaust part of the ventilation layer.

[0006]

In the roof panel of the present invention, when the outside temperature is high, the opening / closing valve made of a shape memory alloy opens the intake part and the exhaust part to introduce radiant heat from the roof tile into the ventilation layer from the intake part. It is discharged to the outside from the exhaust unit together with the generated air. Therefore, the heat absorbed by the roof panel does not radiate to the attic, and the heat insulation performance is good.

On the other hand, when the outside air temperature is low, the on-off valve closes the intake portion and the exhaust portion to block the flow of air in the ventilation layer, so that the heat in the attic space is radiated from the roof panel to the outside. And the heat retention performance is good.

[0008]

EXAMPLES Examples will be shown below with reference to the accompanying drawings.
The roof panel of the present invention will be described in more detail.
FIG. 1 is a side sectional view showing a structural example of a roof panel of the present invention. For example, the roof panel (1) is composed of a panel body (2) and a roof tile (3) disposed integrally with the panel body (2).
The inside thereof is provided with a ventilation layer (4), an intake portion (5) for introducing air into the ventilation layer (4), and an exhaust portion (6) for discharging the air to the outside.

Further, each of the intake part (5) and the exhaust part (6) is provided with an on-off valve (7a) (7b) which is made of a shape memory alloy and which opens and closes according to the change of the outside air temperature. There is. These open / close valves (7a) and (7b) change their shapes to change the shape of the intake section (5) and the exhaust section (6) when the outside air temperature rises to an arbitrary temperature, for example. It automatically opens. Therefore, air flows in from the intake section (5), and this air flows through the ventilation layer (4).
The heat is absorbed and rises and is discharged to the outside from the exhaust unit (6).

On the other hand, when the outside air temperature drops, the on-off valve (7
a) (7b) changes in the direction shown by the white arrow in the figure,
The intake part (5) and the exhaust part (6) are closed. Further, since these on-off valves (7a) and (7b) are cooled by rainwater even during rainfall and change their shapes so as to close the intake section (5) and the exhaust section, rainwater or the like is added to the ventilation layer (4). To prevent intrusion. These on-off valves (7a) (7
In b), auxiliary means such as a spring material may be appropriately provided.

FIG. 2 is a perspective view showing an embodiment of the roof panel of the present invention. For example, as shown in FIG. 2, the roof panel (1) of the present invention includes a panel body (2).
Except for having an intake part (5) at the front end and a rising part (8) for the exhaust part (6) at the rear end, the dimensions of the panel body (2) and the roof tile (3) The shape and the like can be formed similarly to the conventional roof panel. Therefore, for example, as shown in the construction example in FIG. 3, the roof construction can be performed only by fixing to the roof base portion (10) like the conventional roof panel (9). Further, as in the example of FIG. 3, it can be used only for the space (11) used as an attic, and in that case, an uncomfortable appearance due to the combined use with another roof panel (9) occurs. do not do.

Of course, the present invention is not limited to the above examples, and it goes without saying that various aspects are possible in terms of the external appearance of the entire panel, the shape of the on-off valve and the installation state thereof.

[0013]

As described in detail above, the present invention provides a roof panel that can be easily and easily installed like conventional roof panels and has excellent heat insulation and heat retention performance.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a configuration example of a roof panel of the present invention.

FIG. 2 is a perspective view showing an embodiment of the roof panel of the present invention.

FIG. 3 is a perspective view showing an example of roof construction using the roof panel of the present invention.

FIG. 4 is a perspective view showing an example of a conventional roof panel.

FIG. 5 is a perspective view showing an example of roof construction using a roof panel.

[Explanation of symbols] 1 roof panel 2 panel body 3 roof tile 4 ventilation layer 5 intake part 6 exhaust part 7a, 7b open / close valve 8 rising part 9 roof panel 10 roof base 11 space

Claims (1)

[Claims] 1. A roof panel having a ventilation layer in a panel body, wherein an intake valve and an exhaust portion of the ventilation layer are each provided with an on-off valve made of a shape memory alloy.