JP4032307B2 - Transparent resin film roof and building on which it is placed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double-structure roof suitable for melting snow accumulated on a roof of a building or keeping a room warm, and a structure provided with the roof, particularly a greenhouse.
[0002]
[Prior art]
Conventionally, as a snow melting device for a greenhouse that promotes plant cultivation, a snow melting device is known in which a watering pipe is provided outside the roof portion of the greenhouse to supply and spray groundwater or hot water (Patent Document 1). Such). However, this apparatus has a disadvantage that the pipe for watering is exposed to the outside, so that it will freeze and damage the pipe unless water is drained in the pipe at night in winter.
[0003]
There is also known a snow removal device that causes snow on an inclined roof to slide down toward a fence and melts the snow that has fallen by a snow melting means installed near the fence (Patent Document 2, etc.). This equipment slides down by heating the inside of the greenhouse with an air conditioner, warming the roof formed of a covering material (glass plate, hard synthetic resin plate, etc.), melting the snow on the roof, and gradually It is a method of moving in the direction. In addition, a hot water pipe with a hole and a hot water pipe are preinstalled in the cage of this apparatus, and hot water that breaks the snow bridge and passes through the hot water pipe by passing hot water through the hot water pipe. Is a method to melt snow. The roof is a plate and is single, and the heat source for melting the snow on the roof is the warm air in the greenhouse. In this method, the nozzle freezes, the snow is not completely melted, the accumulated snow becomes a tunnel, the snow melt is insufficient, the nozzle is clogged with dust, the water melts using water, not air. There are problems such as requiring a powerful pump.
[0004]
In addition, a ridge is attached to the valley of the roof of the continuous house, a hot water circulation pipe is installed in the ridge, and a hot air duct is arranged in the room near the valley, and the hot air blows out toward the valley. A snow melting device has been proposed (Patent Document 3, etc.). In this apparatus, snow on a roof covered with a plastic film is melted by warm air in a greenhouse heated by a hot air heater, and slides down on a smooth film. Part of the snow that slides is collected in the reed, but is melted by the hot water circulating in the hot water pipe and drained through the reed. If hot air is jetted toward the film in an auxiliary manner, the snow cavity at the top of the kite can be easily melted, which is effective for complete or rapid melting of snow. The roof is a plate and is single, and the heat source for melting the snow on the roof is the warm air in the greenhouse. However, since the hot air blowout is localized, there is a problem that snow melting is insufficient, a powerful pump is required, and freezing occurs.
[0005]
Non-Patent Document 1 describes a solar energy utilization house with an air film roof structure. There is a description that the air film roof structure is for ensuring structural strength without impairing the daylighting property of the house. However, there is no description about supplying warm air to an air film roof, that is, a bag-like roof, and discharging the air in the bag-like object. Therefore, since the air in the air membrane roof is not warm, the effect of heat insulation and heat insulation is small, and if there is snow on the roof, the effect of melting snow cannot be expected.
[0006]
[Patent Document 1]
JP 63-263021 A [Patent Document 2]
JP-A-9-107806 [Patent Document 3]
Japanese Patent Laid-Open No. 11-243789 [Non-Patent Document 1]
Japanese National Agricultural Meteorological Society 2000 National Convention, Japanese Bioenvironmental Control Society 2000 Annual Meeting, 450-451 pages
[Problems to be solved by the invention]
Therefore, the present invention eliminates the disadvantages of the conventional double-layer roof made of transparent resin film, that is, no shadow is generated, the rainwater / snowmelt flows smoothly, the snow slides smoothly, and the snowmelt / heat insulation is achieved. Roof with good performance, durability, double structure (bag-like) thickness, uniform temperature distribution, easy assembly work, good workability, and low material and construction costs The purpose is to provide a building with its roof.
[0008]
[Means for Solving the Problems]
The present invention is a roof of a building constructed by fixing two transparent resin films to a rafter from a purlin to an eaves girder and forming a bag shape, and supplying warm air from an air supply opening to the bag shape material And it is the transparent resin film roof of the building characterized by maintaining a bag-like thing in a tension | tensile_strength state and discharging the air in a bag-like thing from an exhaust port.
[0009]
The roof made of a transparent resin film of the building of the present invention preferably has a structure in which an intermediate portion of the bag-like object is fixed to the rafter and the bag-like object is divided in the rafter direction.
[0010]
Further, the present invention is an arched roof of a building constructed by fixing two transparent resin films to an arched outer frame and configured in a bag shape, wherein an intermediate part of the bag-shaped material is fixed to an arched inner frame. Divide the bag-like material into the rafter direction, supply warm air to the bag-like material from the air supply port, maintain the bag-like material in tension, and exhaust the air in the bag-like material from the exhaust port It is a roof made of a transparent resin film of a building characterized by the following.
[0011]
The roof made of a transparent resin film of a building according to the present invention preferably has a communication pipe between the respective bag-like objects.
[0012]
The present invention is also a building, particularly a greenhouse, having any one of the above-described transparent resin film roofs.
[0013]
The multi-layered roof of the building of the present invention is constructed of any of the transparent resin film roofs described above, and is maintained in a tension state by supplying warm air to the valleys of the facing roof. It is a multi-story building with snow melting ducts.
[0014]
In the continuous building of the present invention, in the vicinity of the valley between the two transparent resin films of the continuous roof of the building, a liquid passage pipe is arranged in the same direction as the long film fastener, It is preferable that the continuous building type hot water pipe according to claim 7 arranged so that warm water or hot antifreeze liquid can be passed through the liquid passing pipe, so that the hot water can be passed through the hot water pipe.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Buildings represented by greenhouses with gable roofs generally have a main body constructed by assembling members such as pillars, large beams, and small beams, and members such as purlins, eaves girders, rafters, rafters, purlins, and palms. It consists of a skeleton composed of gable roofs constructed and assembled. Each member is mainly a metal pipe and a mold, and these are assembled by using fastening hardware such as an orthogonal clamp and a universal clamp, and are respectively constructed on a main body and a roof skeleton. A sheet or film mainly made of a transparent resin is stretched and fixed to the skeleton, and for example, a greenhouse is constructed.
[0016]
The structure of the main body and the roof of the building of the present invention is not different from that of a general building, and the main body and the roof skeleton may be general. A greenhouse which is an example of a roof of a building of the present invention and a building having the roof will be described with reference to the drawings.
[0017]
As shown in FIG. 1, the transparent resin film roof of the present invention is a gable roof 15 in which two transparent resin films 1 are fixed to a rafter 13 from a purlin 11 to an eaves girder 12 and configured in a bag shape. Thus, the roof 15 is made of a transparent resin film in which the bag 2 is maintained in a tension state by warm air supplied from the air supply port 3 and the air in the bag is discharged from the exhaust port 4. Preferably, an intermediate portion of the bag-like object 2 is fixed to the rafter 14, the bag-like object 2 is divided in the rafter direction, a communication pipe 5 is provided between the bag-like objects 2, and the air is in each bag-like shape. This is a case of a structure that allows mutual distribution between the objects 2.
[0018]
The width of the divided bag-like object 2, that is, the distance between the adjacent rafters 14 or the distance between the rafters 14 and the rafters 13 is preferably 20 to 400 cm, more preferably 30 to 250 cm.
The diameter of the air supply port 3 is preferably 1 to 60 cm, more preferably 4 to 30 cm. The diameter of the exhaust port 4 is preferably 0.4 to 80 cm, more preferably 0.5 to 40 cm. By changing the diameter of the exhaust port 4, it is possible to adjust snow melting and heat retaining ability. The diameter of the communication pipe 5 is preferably 1 to 60 cm.
[0019]
In order to fix the transparent resin film 1 to the rafters 14, as shown in FIG. 2, the ends of the two transparent resin films 1 or bag-like transparent resin films 1 constituting the roof 15 were fixed to the rafters 13. It is placed on a long film fastener (underlying member) 21 and covered with a pair of long film fasteners (holding members) 22. Examples of the film fasteners 21 and 22 include a commercially available slyrock type “Slyrail” (trademark: manufactured by Toto Kogyo Co., Ltd.). Of course, the fixing of the transparent resin film 1 is not limited to this preferred example.
[0020]
Even when the roof 15 of the greenhouse is a semi-cylindrical arch, there is essentially no difference from the case of the gable roof 15 described above. That is, in the case of the gable roof 15, the rafters 13 and 14 that are straight lines are only curved in an arch shape in the case of the arched roof 15. Therefore, the fixing of the transparent resin film 1 is similarly performed using the curved long film fasteners 21 (underlying member) and 22 (holding member).
[0021]
Next, the greenhouse which has a gable roof which is a suitable example of this invention is demonstrated using FIG. When the bag-like object 2 is not divided in the rafter direction, the intermediate portion of the bag-like object 2 is not fixed to the rafter 14, so that a communication pipe is unnecessary.
It is a greenhouse having a gable roof 15, and the gable roof 15 is configured as a bag by fixing two transparent resin films 1 to a rafter 13 from a purlin 11 to an eaves girder (not shown). The intermediate part of the object 2 is fixed to the rafter 14, the bag-like object 2 is divided in the direction of the rafter, and each bag-like object 2 is maintained in a tension state by warm air supplied from the air supply port 3. It is a transparent resin film roof 15 that discharges the air inside from the exhaust port 4. A communication pipe 5 is provided between the bag-like objects 2 so that air can flow between the bag-like objects 2.
[0022]
The skeleton of the greenhouse body is constructed by assembling the pillars 16 and members constituting the main body such as large beams and small beams, which are appropriately used, using aluminum orthogonal clamps, universal clamps, and joint fittings. A transparent resin sheet or transparent resin film 1 is stretched around the skeleton of the greenhouse main body, and is fixed to the skeleton using the long film fasteners 21 and 22 shown in FIG.
As in the case of the wall 17, the transparent resin sheet or the transparent resin film 1 is stretched around the frame at the doorway, and is fixed to the skeleton using the long film fasteners 21 and 22, and a door (not shown) ) Build and install. Needless to say, the door is attached to the main body so as to ensure airtightness in the greenhouse.
It is preferable from the viewpoint of heat insulation that the transparent resin sheet or film 1 is double-stretched on the wall 17, particularly the outer wall, and further used in a bag shape.
[0023]
In the continuous greenhouse, a snow melting duct 31 made of a transparent resin film having the same length as the depth of the valley portion 18 is preferably disposed in the space of the valley portion 18 of the gable roof 15 facing in an inclined manner. A transparent resin film wing 32 extending outward from the snow melting duct 31 is overlapped with the transparent resin film 1 constituting the roof 15 and is attached to the rafter 13 using the long film fasteners 21 and 22 shown in FIG. Fixed. Thereafter, warm air is supplied into the tube 33 from the air supply port 34 of the transparent resin film tube 33 placed in the snow melting duct 31, and is further ejected from the plurality of gas outlets 35 of the tube 33. Is kept in tension. The air in the bag-like object is superposed on the wings 32 of the snow melting duct 31 and discharged from a gap formed in a region joined by the long film fasteners 21 and 22.
[0024]
In the case of a multi-storey greenhouse, as shown in FIG. 4, in the vicinity of the valleys at the lower part of the gable roof 15 facing each other, that is, in the vicinity of the long film fasteners 21 and 22, , 22 is preferably arranged in the same direction as that of 22. Of course, the liquid passage pipe 41 is preferably provided on both sides of the gable roof 15 facing each other. Then, warm water or warm antifreeze can be passed through the liquid flow pipe 41 from outside the greenhouse. In addition to supplying warm air to the bag-like object on the gable roof 15 and the snow melting duct 31, by passing warm water or warm antifreeze liquid through the liquid flow pipe 41, Synergistic effects such as warming the air in the object are exhibited, and snow melting proceeds smoothly and quickly.
[0025]
The longer the length of the liquid passage pipe 41, the better. However, it may be a straight pipe or a curved pipe. The diameter of the liquid passage tube is 3 to 20 cm, preferably 3 to 8 cm, and the wall thickness is 0.05 to 5 mm, preferably 0.1 to 0.2 mm. The liquid passage pipe is preferably a resin pipe or a metal pipe, and more preferably made of a transparent resin film, but is not limited thereto.
The temperature of warm water or warm antifreeze is 50 to 95 ° C, preferably 60 to 90 ° C, more preferably 75 to 85 ° C. What is necessary is just to determine suitably the flow volume of warm water or warm antifreeze liquid, seeing a snowmelt state.
[0026]
The cross-sectional shape of the snow melting duct 31 is generally a cylindrical shape or a rectangular tube shape, but is not limited thereto. Other shapes may be used. Also in the case of a rectangular tube shape, it is preferable that the squareness is as small as possible. The size of the cross section of the snow melting duct 31 depends on the size of the roof 15 of the greenhouse, the size of the valley 18 and the like, but in the case of a cylindrical shape, the diameter is preferably 5 to 200 cm, more preferably 25 to 25 cm. 150 cm. The length of the snow melting duct 31 is substantially the same as the depth of the roof 15 and the depth of the valley portion 18.
[0027]
The snowmelt water flows to a water collecting port (not shown) provided on the upper surface of the snow melting duct 31 in the valley 18 and is drained from a drainage tub (not shown) connected to the water collecting port to the ground in the greenhouse or outside the greenhouse.
[0028]
The cross-sectional shape of the tube 33 is generally a cylindrical shape or a rectangular tube shape, but is not limited thereto. Other shapes may be used. Also in the case of a rectangular tube shape, it is preferable that the squareness is as small as possible. The size of the cross section of the tube 33 is not particularly limited as long as it is movable in the snow melting duct 31, but in the case of a cylindrical shape, the diameter is preferably 2 to 190 cm, more preferably 5 to 50 cm. The length of the tube 33 is about 70 to 100% of the length of the snow melting duct 31. The transparent resin film 1 constituting the tube 33 is preferably the same as the transparent resin film 1 constituting the snow melting duct 31. When configuring the tube 33, it is easier to use the slightly thinner or softer transparent resin film 1 than when configuring the snow melting duct 31 when the tube 33 moves in the snow melting duct 31. There is little risk of damage.
[0029]
An air supply port 34 is provided on the upstream side of the peripheral surface of the tube 33. The diameter is preferably 1 to 60 cm, more preferably 4 to 30 cm. The air supply port 34 is configured to be connectable to a pipe or tube 36 extending from a device that generates warm air such as a warm air heater.
A plurality of gas jets 35 are provided on the peripheral surface of the tube 33 at appropriate intervals from the upstream side to the downstream side. The number of gas outlet 35 is preferably from 20 to 1000 pieces / m ^2, and more preferably 40 to 400 pieces / m ^2. The diameter of the gas outlet 35 is preferably 3 to 20 mm, more preferably 5 to 15 mm.
[0030]
As the transparent resin film, thermoplastic resin films such as fluororesin, vinyl chloride resin, polyester resin, and polyethylene resin can be used. However, fluororesin film is transparent, mechanical strength, weather resistance, ultraviolet resistance, heat resistance From the viewpoint of weldability and the like. Examples of the fluororesin include ethylene-tetrafluoroethylene copolymer (hereinafter abbreviated as ETFE), hexafluoropropylene-tetrafluoroethylene copolymer (hereinafter abbreviated as FEP), perfluoro (alkyl vinyl ether)- Tetrafluoroethylene copolymer (hereinafter abbreviated as PFA), tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer (hereinafter abbreviated as THV), polyvinylidene fluoride, vinylidene fluoride-hexafluoro Examples include propylene-based copolymers and polyvinyl fluoride. Preferred is one or more selected from the group consisting of ETFE, FEP and THV, and more preferred is ETFE. The thickness of the fluororesin film is determined mainly considering the mechanical strength of the resin, but is preferably 40 to 200 μm, more preferably 50 to 160 μm.
[0031]
The inside surface of the transparent resin film on the indoor side of the building is subjected to a hydrophilic treatment, so that even when moisture on the indoor side is condensed on the transparent resin film, water drops can easily flow and the water drops fall on the crop. It is preferable to reduce the influence such as inhibiting the growth of crops. Examples of the hydrophilization treatment method include a method of coating a solution of an inorganic colloid, a hydrophilic resin, a metal oxide or the like with a coating machine, a spraying method, a method of sputtering a metal oxide such as silicon, tin, or titanium. Is preferred.
[0032]
The operation of the transparent resin film roof of the present invention and the greenhouse in which the roof is disposed will be described.
Warm air from a hot air heater or the like is continuously supplied to the space of the bag-like roof. The air in the bag-like material maintains the bag-like material in an appropriate tension state and maintains the temperature in the bag-like material in a predetermined temperature range, so that high snow melting performance and heat insulation performance can be obtained. And the air in a bag-like thing is discharged | emitted out of a bag-like thing from an exhaust port.
[0033]
In the case of the roof in which the bag-like material of the transparent resin film of the present invention is divided in the direction of the rafter and the greenhouse in which the roof is arranged, the bag-like material is divided into an appropriate size and volume in addition to the above-described effects. Therefore, the circulation and diffusion of air (warm air) is good and the thermal efficiency is high. Further, since the roof is inclined toward the portion (the rafter direction) into which the bag-like object is divided, the snow melt water and snow on the roof are likely to slide down.
[0034]
Hot air (for example, 20 ° C.) from a hot air heater or the like is continuously supplied to the duct or the tube in the duct disposed in the valley of the roof, and the duct or the tube and the duct are appropriately tensioned. At that time, if the inside of the duct is adjusted to a temperature considerably higher than that in the greenhouse, the snow accumulated in the valleys can be melted more rapidly through the transparent resin film constituting the duct. And since the bag-like object is fixed to the rafters, snow and / or snowmelt water flows smoothly in the same direction in the same direction without extremely meandering from the purlin to the eaves and almost accumulates. There is nothing. The snowmelt water is preferably drained from a water collecting port and a drainage basin provided in the snowmelt duct.
[0035]
Next, a preferred embodiment of the present invention will be described more specifically with reference to the embodiment based on FIG.
It is a greenhouse constructed from pillars 16, purlins 11 and rafters 13, etc. The distance between the pillars on the front is 12m, the depth is 6m, the height of the tower is 6.3m, and there is a trough 18 of the roof 15 at the midpoint between the pillars 16. A greenhouse with an inclination angle of 20 ° on the roof 15 was constructed on a farm in Urasu-cho, Ashido-gun, Hokkaido. An ETFE film (thickness: 100 μm, manufactured by Asahi Glass Co., Ltd., “EFCLEAN” (registered trademark)) was spread around the support column 16 over the entire surface from the rafter 13 to the ground, and the wall 17 was constructed. Further, on the frame of the roof frame such as the rafter 13 and the rafter 14, the roof 15 was constructed by double spreading the ETFE film.
[0036]
In the valley 18 of the roof 15 facing each other, the end wings 32 of the snow melting duct 31 composed of two ETFE films are overlapped with the ends of the two ETFE films constituting the roof 15, and the overlapping region is A snow melting duct 31 (width 108 cm, height 40 cm, length 600 cm) was formed by being sandwiched between film fasteners 21 and 22 as shown in FIG. 2 and fixed to the roof frame. Even when fixed, a gap was formed in the overlap region of the transparent resin film. Inside the snow melting duct 31, a tube 33 having the same length as the depth of the valley 18 and a diameter of 10 cm was placed. The tube 33 is provided with gas outlets 35 having a diameter of 1 cm at intervals of 80 / m ² .
[0037]
Next, warm air from the warm air heater is supplied from the air supply port 34 (diameter 5 cm) of the tube 33 through the pipe 36 (diameter 5 cm), the tube 33 is maintained in a tension state, and the circumference of the tube 33 is Warm air was jetted into the snow melting duct 31 from the gas outlet 35 on the surface to maintain the snow melting duct 31 in a tension state. The air in the snow melting duct 31 was discharged out of the greenhouse from the gap that was still formed even when the laminated transparent resin film was sandwiched between the film fasteners 21 and 22. Further, warm air from the warm air heater was also supplied from the air supply port 3 (diameter 5 cm) through the pipe 36 (diameter 5 cm) to the space of the two transparent resin films constituting the roof 15. Warm air spread throughout the roof 15 through the communication pipe 5 (diameter 5 cm). And the air in the roof 15 was discharged | emitted from the exhaust port 4 (diameter 1cm).
[0038]
Warm air was constantly supplied into the tube 33 for about two months from February 1, 2002 to April 5, 2002. The temperature of the warm air was 44.4 ° C. ± 8.4 ° C. at the air inlet 34, 29.4 ° C. to −14.5 ° C. at the gas outlet 35, and the flow rate was 0.1 m ³ / min. . The temperature of the warm air supplied to the bag-like inner space of the two transparent resin films on the roof 15 is 44.4 to 8.4 ° C. at the air supply port 3, and 52.5 to −− at the exhaust port 4. The flow rate was 0.3 ° C. and the flow rate was 0.1 m ² / min.
[0039]
The total amount of snowfall during that period was 217 cm, but all the snow falling on the roof 15 melted and did not accumulate. Further, the maximum snowfall amount per day during this period was 16 cm on March 4, but the roof 15 and the snow melting duct 31 were also on the same day (maximum temperature −1.1 ° C., minimum temperature −6.2 ° C.). All the snow that fell on the thawed and did not accumulate.
[0040]
【The invention's effect】
Since the roof of the present invention is composed of a lightweight transparent resin film, even if there is a rafter for separating the bag-like material and a long film fastener for fixing to the rafter, the roof of the plant in the greenhouse There is no shadow that has a substantial effect on growth. Therefore, the cultivated land area in the greenhouse can be utilized to the maximum. In addition, when a fluororesin film is used as the resin film, weather resistance, ultraviolet resistance, mechanical strength, and the like are excellent, so that the period of re-stretching of the resin film can be a long period of more than ten years.
[0041]
Since the roof of the present invention is configured in a bag shape and has an air supply port and an exhaust port, warm air from a hot air heater or the like can always be supplied into the bag-like material, Excellent heat retention in the greenhouse.
[0042]
When the roof of the present invention is divided and partitioned into bag-like items of appropriate size and volume, the bag-like item when the hot air supplied to the bag-like item diffuses into the bag-like item That is, the temperature distribution of the roof is imbalanced, and the range of variation can be reduced, so that the thermal efficiency is high. Further, since the roof is inclined toward the portion (the rafter direction) into which the bag-like object is divided, it is easy for snowmelt water and snow on the roof to slide down. Moreover, since it is divided, the fluctuation | variation of the bag-like thing by the gust etc. which pass outdoor, ie, a roof, can be suppressed. In addition, there is an advantage that a bag-like object, that is, a roof is damaged for some reason and the repair and repair range when the bag is broken are narrow. Furthermore, since there is no partition across the inclined surface from the girder roof purlin to the eaves girder, there is no hindrance to rainwater, snowmelt water flow, and snow sliding from the purlin direction to the eaves girder. In addition, the snow puddle at the top of the purlin can be solved.
[0043]
In addition, a prefabricated roof constructed by preliminarily stretching a transparent resin film on a roof skeleton pre-assembled on the ground, or a bag-shaped transparent resin film in advance, a crane, etc. on the skeleton of the main body It is possible to improve the workability when assembling the greenhouse by lifting it.
Moreover, when a transparent resin film duct is disposed in the valley of the roof, it is possible to quickly melt the snow accumulated in the duct and the snow sliding down on the duct due to the warm air supplied in the duct. .
[0044]
Furthermore, by passing warm water or warm antifreeze through the liquid flow pipe 41, a synergistic effect with supplying warm air to the bag-like material is exhibited, so that snow melting proceeds more smoothly and quickly. it can.
[Brief description of the drawings]
FIG. 1 is a sketch showing an example of a roof according to the present invention.
FIG. 2 is a sketch showing an example of a long film fastener used in the present invention.
FIG. 3 is a sketch showing an example of a greenhouse of the present invention.
FIG. 4 is a sketch showing another example of the greenhouse of the present invention.
[Explanation of symbols]
1: transparent resin film 2: bag-like object 3: air supply port 4: exhaust port 5: communication pipe 11: purlin 12: eaves girder 13: cutting rafter 14: rafter 15: roof 16: pillar 17: wall 18: valley 21: Long film fastener (underlaying member)
22: Long film fastener (holding member)
31: Snow melting duct 32: Wing 33: Tube 34: Air supply port 35: Gas jet port 36: Pipe 41: Fluid passage

Claims (11)

It is a roof of a building constructed by fixing two transparent resin films to a rafter from the purlin to the eaves and configured in a bag shape, of the two transparent resin films, transparent on the indoor side of the building The inner surface of the resin film is hydrophilized , warm air is supplied to the bag from the air supply port provided in the bag, and the bag is maintained in a tension state. A transparent resin film roof for a building, wherein air in a bag-like object is discharged from an exhaust port provided in the object. It is a roof of a building constructed by fixing two transparent resin films to a rafter from the purlin to the eaves and configured in a bag shape, of the two transparent resin films, transparent on the indoor side of the building The inner surface of the resin film has been hydrophilized,
Fix the middle part of the bag-like object to the rafter, divide the bag-like object in the rafter direction,
Warm air is supplied to the bag-like material from the air supply port provided in the bag-like material to maintain the bag-like material in a tension state, and the bag-like shape is formed from the exhaust port provided in each of the divided bag-like materials. A transparent resin film roof of a building characterized by discharging air in the object. An arched roof of a building constructed by fixing two transparent resin films to an arched outer frame in a bag shape, of the two transparent resin films, the transparent resin film on the indoor side of the building The inner surface has been hydrophilized,
Fix the middle part of the bag-like object to the arch-shaped inner frame, and divide the bag-like object in the rafter direction
Warm air is supplied to the bag-like material from the air supply port provided in the bag-like material to maintain the bag-like material in a tension state, and the bag-like shape is formed from the exhaust port provided in each of the divided bag-like materials. A transparent resin film roof of a building characterized by discharging air in the object.   The transparent resin film roof according to any one of claims 1 to 3, wherein the transparent resin film is a fluororesin film. Two transparent resin films are fixed to the rafters from the purlin to the eaves girder and are constructed in a bag shape,
The transparent resin film is a fluororesin film;
Of the two transparent resin films, the inner surface of the transparent resin film on the indoor side of the building has been subjected to a hydrophilic treatment,
The middle part of the bag is fixed to the rafter, the bag is divided in the direction of the rafter, warm air is supplied from the air supply port to the bag, and the bag is maintained in tension. A transparent resin film roof of a building characterized by exhausting the air inside the object through an exhaust port. It is an arched roof of a building constructed by fixing two transparent resin films to an arched outer frame and forming a bag shape,
The transparent resin film is a fluororesin film;
Of the two transparent resin films, the inner surface of the transparent resin film on the indoor side of the building has been subjected to a hydrophilic treatment,
The intermediate part of the bag-like object is fixed to the arch-shaped inner frame, the bag-like object is divided in the direction of the rafter, warm air is supplied to the bag-like object from the air supply port, and the bag-like object is maintained in a tension state. And a transparent resin film roof for a building, wherein the air in the bag-like object is discharged from the exhaust port. The roof made of a transparent resin film of a building according to any one of claims 1 to 6, wherein a communication pipe is provided between the bag-like objects. The building which has the roof made from the transparent resin film in any one of Claims 1-7. A greenhouse having the transparent resin film roof according to any one of claims 1 to 7. The continuous roof of the building is constructed of the transparent resin film roof according to any one of claims 1 to 7, and is transparent maintained in a tension state by supplying warm air to the valley of the facing roof A multi-story building with a resin film snow melting duct. In the vicinity of the trough between the two transparent resin films on the continuous roof of the building, a liquid flow pipe is arranged in the same direction as the long film fastener, and hot water or warm antifreeze liquid is passed through the liquid flow pipe. The continuous building type structure according to claim 10, wherein the building can be liquidized.

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