JP4764049B2 - Ventilated roof structure - Google Patents

Description

  The present invention relates to a structure of a ventilated roof, a construction method thereof, and a roof panel.

  Conventionally, a heat reflecting film is laid on the field board, a second rafter is attached on it, and a second field board is attached on the second rafter, between the second rafters between the upper and lower field boards. A ventilated roof as a ventilation part for the ventilation of the roof is conventionally known, but in this structure of the ventilation roof, a rafter and a field board are provided in order to secure the ventilation part, and the structure is complicated. There is a problem that there is a lot of waste. In addition, there is a problem that it is difficult to balance with attic ventilation.

  In view of the above problems, an object of the present invention is to provide a ventilation roof structure and the like that can be realized with a simple structure.

  The above problem is that the rafter attached to the lower surface side of the field board is attached to the main building through the heat reflecting film, and the space between the rafter between the field board and the heat reflecting film is used as a ventilation part for roof ventilation. This is solved by the structure of the ventilated roof characterized in that the ventilation part and the back of the hut are partitioned by the heat reflecting film.

  In this structure, since the heat reflecting film is provided between the rafter and the main building, and the space between the rafters between the heat reflecting film and the base plate is used as a ventilation portion for roof ventilation, the second rafter and the second rafter are provided. No ground plate is required, and a ventilated roof can be realized with a simple structure.

  In the above structure, an air supply vent for the attic is provided under the eaves, an exhaust vent for the attic is provided in the ridge, and the inside of the attic is ventilated with air from the air supply port to the exhaust port. And a part of the air enters the ventilation portion at the eaves-side tip of the heat reflecting film, and merges with the air behind the hut at the ridge-side tip of the heat reflecting film, and the exhaust port It is good to be exhausted outside through.

  That is, the ventilation section for roof ventilation and the back of the hut are partitioned by a heat reflecting film, and the eaves-side tip of the heat-reflecting film is kept closer to the ridge side than the air supply port under the eaves, and the ridge-side tip is The air supply and exhaust vents for shed ventilation can be used as air inlets and outlets for roof ventilation, just by refraining from the ridge side exhaust vents. Can be integrated into the roof with a simple structure.

  In the above structure, the heat reflecting film is a first heat reflecting film, and at least one second heat reflecting film is provided at an intermediate height position between the first reflecting film and the base plate. The ventilation part between the rafters may be divided in the vertical direction by the heat reflecting film.

  In this case, the second heat reflection film prevents the upper air, which is likely to become high temperature due to solar radiation energy, from interfering with the lower air and weakens the strength of the updraft by blocking the upper air. However, a strong updraft can be generated, and the received solar radiation energy can be efficiently discharged out of the ventilation layer.

  In addition, the present invention includes a field board, a rafter attached to the lower surface thereof, and a heat reflecting film attached to the lower surface side of the rafter, and for roof ventilation between the rafters between the field board and the heat reflecting film. The construction method of the ventilation roof characterized by using the roof panel used as the ventilation part of this, and installing this roof panel on a main roof.

  And a rafter installed between the bottom surface of the rafter and attached to the lower surface of the rafter, and a heat reflecting film attached to the lower surface of the rafter. The roof panel is characterized in that a ventilation portion for roof ventilation is used.

  That is, according to this construction method and the roof panel, in the construction on site, it is not necessary to perform the construction to install the heat reflecting film alone on the main building, only to install the roof panel on the main building, The heat reflecting film can be disposed between the rafter and the main building, and the heat reflecting film can be applied to the position very easily.

  Since the present invention is as described above, the ventilated roof can be realized with a simple structure, and the attic ventilation and the roof ventilation can be provided with a simple structure, and the solar radiation energy can be efficiently used. It can be discharged from the ventilation layer and can be easily constructed.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  In the ventilated roof 1 of the first embodiment shown in FIGS. 1 and 2, 2 is a main building, 3 is a roof panel, and the roof panel 3 includes a field plate 4 and a roof panel 3 as shown in FIGS. The rafter 5 attached to the lower surface of the rafter 5 and the heat reflecting film 6 made of, for example, an aluminum vapor-deposited film attached to the lower surface of the rafter 5 are integrally formed. The space between the rafters 5 between them is a ventilation portion 7 for roof ventilation.

  And the ventilation | gas_flowing roof 1 is formed only by installing this roof panel 3 on the main building 2 like a normal roof panel, as shown in FIG. 1 (I) (B), By this installation, The heat reflecting film 6 is interposed between the rafter 5 and the main building 2, and as shown in FIG. 1 (b), the roof is divided by the back of the hut 8 and the heat reflecting film 6 for ventilation of the roof. The ventilation part 7 is formed.

  As shown in FIG. 2 (a), the ventilated roof 1 is provided with an air inlet 10 for shed ventilation in the eaves bottom 9 and an exhaust port 12 for shed ventilation in the ridge 11. The interior of the hut 8 is not only ventilated with air from the air supply port 10 toward the exhaust port 12, but the eaves-side tip of the heat reflecting film 6 is closer to the ridge than the air supply port 10 under the eaves. In addition, the ridge-side tip portion is evacuated to the eaves side rather than the ridge-side exhaust port 12, so that the outdoor air that has entered the back of the hut 8 from the eaves-side air inlet 10 is In this position, it is divided into the side of the ventilation part 7 and the side of the shed 8 and the divided parts flow through the side of the ventilation part 7 and the side of the shed 8 and merge at the tip of the ridge side of the heat reflecting film 6. The exhaust air is exhausted to the outside through the exhaust port 12, and the air supply port 10 and the exhaust port 12 for ventilation in the back of the cabin enter the air for roof ventilation. Has a structure to be used also serves as an outlet.

  In the ventilation part 7, as shown in FIG. 1 (c), the solar radiation energy reflected by the heat reflecting film 6 raises the temperature of the air in the ventilation part 7, and an upward air flow is generated. It works to prevent the roof from becoming hot due to solar radiation by creating an air flow toward the side.

  As described above, according to the structure of the ventilated roof, the construction method thereof, and the roof panel, the heat reflecting film 6 is provided between the rafter 5 and the main building 2, and the heat reflecting film 6 and the base plate 4 are disposed between. Since the space between the rafters 5 is used as the ventilation portion 7 for ventilation of the roof, the conventional second rafter and the second field plate are not required, and the ventilation roof can be realized with a simple structure.

  Moreover, it has a simple structure in which the eaves-side front end portion of the heat reflecting film 6 is kept behind the eaves side rather than the air supply port 10 under the eaves and the ridge-side front end portion is kept behind the eaves side than the air outlet 12 on the ridge side. The air inlet 10 and the air outlet 12 for the attic ventilation are used as the air inlet and outlet for the roof ventilation, and the roof ventilation and the attic ventilation are fused in a good condition. Can be built into the roof.

  Further, as a method of providing the heat reflecting film 6 between the rafters 5 and the purlin 2, a method of using the roof panel 3 having the heat reflecting films 6 attached under the rafters 5, and installing it on the purlin 2 is used. Since it is adopted, it is not necessary to install the heat reflecting film 6 on the main building 2 alone in the construction on site, and only the roof panel 3 is installed on the main building 2 for heat reflection. The film | membrane 6 can be arrange | positioned between the rafter 5 and the main building 2, and construction of the heat | fever reflection film | membrane 6 to the position can be performed very easily.

  The ventilation roof 1 of 2nd Embodiment shown in FIG. 3 makes the heat reflection film 6 installed between the rafter 5 and the main building 2 a 1st heat reflection film, and this 1st heat reflection film 6 and the field plate 4 and A second heat reflecting film 13 is provided at an intermediate height between the rafters 5 adjacent to each other, and the second heat reflecting film 13 allows the ventilation portion between the rafters 5 to vertically move. Are divided into two ventilation portions 7a and 7b. Depending on the height of the rafter 5 and the intensity of solar radiation, three or more ventilation portions may be formed by a plurality of second heat reflecting films in the vertical direction.

  According to this ventilated roof 1, the air in the upper ventilation part 7, which is likely to become high temperature due to solar radiation energy, receives interference from the air in the lower ventilation part 7 and weakens the strength of the rising airflow. The heat reflection film 6 blocks and prevents the air in the upper ventilation layer 7a from generating a strong upward air flow, and the received solar radiation energy can be efficiently discharged from the ventilation layer.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the above embodiment, an aluminum vapor deposition film is cited as an example of the heat reflecting film, but the present invention is not limited thereto, and other film materials having the same function may be used.

FIG. 2 (a) and FIG. 2 (b) show sectional front views sequentially showing the construction method, and FIG. 2 (c) shows an operating state of heat shielding in the ventilation portion. It is an A section expansion detailed cross-section front view of a). Fig. (A) is a front view schematically showing the structure of a ventilated roof that combines attic ventilation and roof ventilation. Fig. (B) is a perspective view of a roof panel provided with a heat reflecting film. FIG. 3 is an exploded perspective view of the roof panel. FIG. 2A is a perspective view of a roof panel, FIG. 2B is a sectional front view showing an installation state of the roof panel, and FIG. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ventilation roof 2 ... Main building 3 ... Roof panel 4 ... Base plate 5 ... Rafter 6 ... Heat reflection film 7 ... Ventilation part 7a ... Upper ventilation part 7b ... Lower ventilation part 8 ... Back of hut 10 ... Air supply opening 12 ... Exhaust opening 13 ... 2nd heat reflection film

Claims (2)

A rafter attached to the lower surface side of the field plate is attached to the main building through a heat reflecting film, and the space between the rafter between the field plate and the heat reflecting film serves as a ventilation part for the roof ventilation, and the ventilation part and the back of the hut In the structure of the ventilated roof in which and are partitioned by the heat reflecting film,
There is an air supply vent for shed ventilation under the eaves, an exhaust vent for shed ventilation is provided in the ridge, and the interior of the shed is ventilated with air from the air supply vent to the exhaust vent. And a part of the air enters the ventilation portion at the eaves-side tip of the heat reflecting film, merges with the air behind the hut at the ridge-side tip of the heat reflecting film, and is exhausted to the outside through the exhaust port. Ventilated roof structure characterized in that it is made to The heat reflection film is a first heat reflection film, and at least one second heat reflection film is provided at an intermediate height position between the first reflection film and the base plate. The ventilation roof structure according to claim 1 , wherein the ventilation portion is divided in the vertical direction .

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