JP2008180085A - Water evaporative cooling roof-wall body structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient water evaporation roof and wall body structure having high durability, while reducing consumption of water. <P>SOLUTION: This roof and wall body structure is supplied with water by a rainfall or rainwater from a water supply device arranged in a building upper part. The water evaporation cooling roof and wall body structure is constituted by arranging a protective material having light shielding performance, at least any of water absorptivity and water communication performance or vapor passing performance on a temperature sensing water absorptive drainage polymer layer by laminating the temperature sensing water absorptive drainage polymer on an outside surface of a structure. Thus, the temperature sensing water absorptive drainage polymer cab be efficiently cooled by absorbing-draining water in response to the temperature, and since the light is shielded by the protective material, durability of the temperature sensing water absorptive drainage polymer can be improved. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a roof / wall structure of a building in which water is sprayed on the outer surface of the building, such as a roof or an outer wall, and the building is cooled by using vaporization heat taken when the water evaporates. The present invention relates to a moisture evaporative cooling roof / wall structure having a high cooling effect and having high durability against sunlight.

  Water is sprayed on the outer surface of the building, such as roofs and outer walls, and the surface temperature of the building structure is lowered using the heat of vaporization when the water on the surface evaporates to cool the interior of the building, reducing the load on the cooling equipment. The method of making it known is known.

  In such a cooling method, a water storage tank or a water supply pipe is provided at the upper part of the roof or outer wall, and the water discharged from these is made to flow down along the gradient to spray the surface of the roof or outer wall, or a water discharge device such as a sprinkler is installed on the roof or the outer wall. It was installed toward the wall surface, and the water was discharged and sprinkled.

  However, when water is allowed to flow down on a roof or the like, it is difficult to wet the entire roof uniformly because a so-called water channel is formed in which water always flows down a specific place. Moreover, the water immediately fell from the water discharge to the lower end of the roof, and a high cooling effect was not obtained for the amount of water used.

  On the other hand, when a sprinkler is used, a high water pressure and a large amount of water are required to reach water over a wide range, and water cannot be efficiently sprayed with a small amount of water, resulting in increased water consumption. there were. In addition, the water released from the sprinkler is caused to flow in an unexpected direction by wind or the like, and may not be sprayed to a desired location.

  Therefore, a temperature-sensitive water-absorbing polymer is laminated on the surface of the building structure such as the roof and outer wall surface, and water is stored in advance in the temperature-sensitive water-absorbing polymer from a water supply device, etc. It is considered to evaporate water released from the drainage polymer on the surface of the structure to cool the building.

  According to this invention, water can be widely spread over the entire outer surface of the structure, and when the temperature is low, the temperature-sensitive water-absorbing polymer retains the water inside to prevent wasteful consumption of water, On the other hand, when the temperature of the temperature-sensitive water-absorbing and draining polymer 14 becomes equal to or higher than a predetermined temperature, the retained water is discharged and cooling by moisture evaporation is started. It has the effect that can be exhibited. (For example, refer to Patent Document 1).

Such a cooling system that uses the latent heat of vaporization of water consumes significantly less energy than a cooling system that uses electric power, etc., and is not a total heat generation system like electric cooling, thus preventing global warming. Is also effective.
Japanese Patent Application No. 2001-102902.

  However, since the conventional moisture evaporative cooling roof / wall structure has the temperature-sensitive water-absorbing polymer provided on the surface of the building structure, the temperature-sensitive water-absorbing polymer is directly irradiated with sunlight. Therefore, with the passage of time, the water absorption / drainage performance of the temperature sensitive water absorption / drainage polymer may deteriorate.

  In addition, since the temperature-sensitive water-absorbing polymer may be powdered and scattered by the wind if it is completely dried, it is necessary to replenish water appropriately to maintain the temperature-sensitive water-absorbing polymer in a water-containing state. there were. Furthermore, there was a possibility that dust would be attached and fouled.

  The present invention solves the above problems, uniformly wets the structure of the building such as the roof surface and outer wall surface with a small amount of water, provides a high cooling effect due to evaporation of moisture, and has little deterioration over time and high durability. The object is to provide a moisture evaporative cooling roof / wall structure.

  In this invention, in order to solve the said subject, the water | moisture-content evaporative cooling roof and wall structure were comprised as follows.

  In the first aspect of the present invention, in the roof / wall structure in which moisture is supplied by rain or rainwater from a water supply device installed in the upper part of the building, the outside of the structure constituting the roof / wall The surface has a temperature-sensitive water-absorbing and draining polymer layer, and a light-shielding property and at least one of water-absorbing and water-permeable properties, or vapor-permeable properties, which is located on the outer side of the temperature-sensitive water-absorbing and draining polymer layer. A cooling material composed of a protective material which is a film material such as a non-woven fabric was provided to form a water evaporation cooling roof / wall structure.

  A structural body means the structural members which comprise a building, such as a roof and a wall.

  A temperature-sensitive water-absorbing polymer has a predetermined temperature-sensitive point for each temperature-sensitive water-draining polymer, and absorbs water when the temperature of the temperature-sensitive water-draining polymer is lower than the temperature point. It is a water-absorbing and draining resin that has the property of discharging water held inside when it reaches the above temperature.

  The water absorption provided by the protective material refers to the property of absorbing water by the fiber or material itself, and the water permeability does not absorb water by the fiber or material itself, but the property of the fiber or material or allows water to pass through the gap between them. Say. The vapor passage property means a property of allowing at least vapor to pass in the front and back direction. The light shielding property may be not only the ability to completely block sunlight, but also the ability to block light having a wavelength that adversely affects the temperature-sensitive water-absorbing / draining polymer. Further, the surface may have light reflectivity.

  Examples of the protective material include non-woven fabrics and membrane materials such as cloth materials similar to Gore-Tex (trade name).

  Thereby, the temperature-sensitive water-absorbing polymer supplied with water from a water supply device or the like absorbs and holds water therein. When the outside air temperature rises and the temperature of the temperature-sensitive water-absorbing polymer reaches the temperature-sensing point, the temperature-sensitive water-absorbing polymer releases water, and the outside temperature decreases and the temperature of the temperature-sensitive water-absorbing polymer decreases. When the temperature is below the temperature-sensitive point, the temperature-sensitive water-absorbing polymer stops releasing water, and if water is supplied from a water supply device or the like, it absorbs water and holds it inside.

  Therefore, when the outside air temperature rises and the temperature of the temperature-sensitive water-absorbing polymer rises above the temperature-sensitive point, the water discharged from the temperature-sensitive water-absorbing polymer is protected on the surface of the protective material or with vapor passage. In the case of a material, since it evaporates in the lower part of the protective material, a cooling effect is obtained in which the surface of the structure such as a roof or a wall is cooled by heat of vaporization. Furthermore, since the moisture is discharged only when the outside air temperature is high due to the temperature-sensitive water-absorbing polymer, there is no wasteful consumption of water.

  Moreover, since sunlight is interrupted by the protective material, the temperature-sensitive water-absorbing / draining polymer is not directly irradiated with sunlight or the like, and deterioration over time due to irradiation with sunlight or the like is prevented.

  The invention according to claim 2 is the invention according to claim 1, wherein the temperature-sensitive water-absorbing polymer layer is a mixture of a fibrous resin and a temperature-sensitive water-absorbing polymer.

  This facilitates handling of the temperature-sensitive water-absorbing / draining polymer layer, and simplifies use, construction, and the like on an inclined surface. The resin is not limited to a fiber, but may be a foamable resin or any other material that can hold a temperature-sensitive water-absorbing / draining polymer.

  The invention according to claim 3 is the invention according to claim 1, in which the temperature-sensitive water-absorbing / draining polymer is accommodated in the recess of the structure having a large number of recesses on the surface.

  According to a fourth aspect of the present invention, in the first aspect of the invention, the temperature-sensitive water-absorbing polymer layer is accommodated in a partition space partitioned by a partition plate on the surface of the structure. It was assumed.

  According to the third and fourth aspects, the temperature-sensitive water-absorbing / draining polymer can be maintained in a desired state, and a cooling effect can be obtained. In addition, by extending the partition plate horizontally on the inclined surface, the water flowing from above can be efficiently supplied while sequentially overflowing downward.

  The invention according to claim 5 is the invention according to claim 1, wherein the temperature-sensitive water-absorbing polymer layer is stored in a storage bag formed of a nonwoven fabric as a protective material. is there. That is, the temperature-sensitive water-absorbing polymer is accommodated in a non-woven fabric storage bag as a protective material to constitute the coolant.

  Thereby, a temperature-sensitive water-absorbing and draining polymer layer can be easily formed, and the ease of handling can be improved.

  The invention according to claim 6 is the invention according to claim 5, wherein the temperature-sensitive water-absorbing and draining polymer is mixed with the fibrous resin to facilitate handling of the coolant.

  An embodiment of a moisture evaporation cooling roof / wall structure of a building according to the present invention will be described. FIG. 2 shows the entire building.

  The building 2 includes a roof 3, an outer wall 5 having windows 4, a water storage tank 6 as a water supply device for storing rainwater, and the like, and the roof 3 is configured as a water evaporation cooling roof / wall structure with a coolant 13. ing. The water storage tank 6 is not limited to this configuration.

  The moisture evaporative cooling roof / wall structure is formed of a structure 12 of the roof 3 and a coolant 13 provided on the structure 12 as shown in FIG. The cooling material 13 is formed by mixing the temperature-sensitive water-absorbing and draining polymer 14 with the fibrous resin 15 and storing it in a film material 16 that is a protective material using a nonwoven fabric formed into a bag shape.

  The temperature-sensitive water-draining polymer 14 has a specific temperature (hereinafter, referred to as a temperature-sensitive point) determined for each temperature-sensitive water-draining polymer. It has the capability of absorbing and holding water inside and discharging the water held inside without absorbing water when the air temperature is higher than the temperature sensing point. For example, (N -Examples in which a water-absorbing resin was obtained by aqueous solution polymerization of isopropylacrylamide, sodium acrylate and diacetone acrylamide in the presence of a crosslinking agent) and (N-isopropylacrylamide, diacetone acrylamide, acrylic described in JP-A-8-100010) An example of obtaining a temperature-sensitive water-absorbing and draining gel containing inorganic particles by dissolving and dispersing acid and acid clay in water, adding an initiator in a nitrogen gas stream, and polymerizing them. The N- alkyl acrylamide such as N- isopropylacrylamide was polymerized crosslinking as a main component monomer resin and the like are known.

  In this type of temperature-sensitive water-absorbing and draining polymer, a temperature-sensitive point can be arbitrarily set by appropriately selecting a monomer copolymerizable with N-alkylacrylamide. In the present invention, a temperature sensitive point of 25 ° C. to 30 ° C. is preferred.

  The film material 16 is made of a material having a light-shielding property that does not allow sunlight to pass therethrough and at least one of water-absorbing properties and water-permeable properties, and is formed in a bag shape having a side of about 30 cm to 1 m.

  Inside the membrane material 16, a temperature-sensitive water-absorbing and draining polymer 14 is mixed and stored in a fiber-like resin. By mixing the temperature-sensitive water-absorbing polymer 14 with the fibrous resin, the shape retention of the mixture with the temperature-sensitive water-draining polymer 14 is enhanced.

  The coolant 13 thus formed is arranged on the entire upper surface of the roof 3 and is fixed to the structure 12 using nails, screws, fixing brackets, and the like. The coolant 13 may be fixed to the structure 12 using an adhesive applied between the roof 3 and the like.

  The water storage tank 6 includes a storage container 17 that stores rainwater, an outlet 18 that opens at a lower portion of the storage container 17, an on-off valve (not shown) that opens and closes the outlet 18, and the like, and has a temperature detector. The on-off valve is actuated by a signal from a controller (not shown), and water flows out from the outlet 18. The outlet 18 is provided at an appropriate interval along the top of the roof 3, and the water discharged from the outlet 18 is applied to the coolant 13 attached to the uppermost stage.

  In addition, the water storage tank 6 does not need to be installed in the center of the roof 3, and may be arrange | positioned in the other place above a roof top part. In this case, piping is arranged from the water storage tank arranged above the roof top to the roof, and water is discharged from the outlet 18.

  Furthermore, the bottom part of the roof 3 is provided with a gutter 20 so that rainwater flowing down on the roof 3 can be stored in the water storage tank 21, and rainwater can be pumped from the water storage tank 21 to the water storage tank 6 using the pump 22. In addition, when water is insufficient, city water (tap water) or the like may be supplied to the water storage tank 21 or the water storage tank 6.

Next, the operation of the evaporative cooling roof / wall structure will be described.
The coolant 13 is supplied with rain or rain water from the water storage tank 6 in advance. When the outside air temperature is low and the temperature-sensitive water-absorbing polymer 14 is below the temperature-sensing point, the temperature-sensitive water-absorbing polymer 14 does not hold and release water, so there is no need to cool the building at a relatively low temperature. No water is consumed.

  When the outside air temperature rises and the temperature of the temperature-sensitive water-absorbing polymer 14 becomes equal to or higher than the temperature-sensitive point, water is released from the temperature-sensitive water-absorbing polymer 14. The discharged water oozes out to the surface of the film material 16 and evaporates to take heat of vaporization and cool the surface. As a result, the temperature of the roof 3 is lowered, the temperature in the building 2 is lowered, or the temperature rise is suppressed and a cooling effect is obtained.

  And if outside temperature falls and the temperature of the temperature-sensitive water-absorbing polymer 14 falls below a temperature-sensitive point, discharge | release of the water from the temperature-sensitive water-absorbing polymer 14 will stop again.

  Therefore, when the outside air temperature is high, water is evaporated from the coolant 13, the surface temperature of the roof 3 is lowered, and the cooling effect of the building 2 is obtained. In addition, when the outside air temperature is lowered, the temperature of the temperature-sensitive water-absorbing polymer 14 is lower than the temperature-sensitive point, and it is no longer necessary to reduce the room temperature of the building 2 by evaporation, the evaporation stops, which is useless. Water consumption is eliminated.

  When it is determined that the water content of the temperature-sensitive water-absorbing / draining polymer 14 is decreasing, the on-off valve is opened to allow water to flow out of the water storage tank 6. The water that flows out of the water storage tank 6 is applied to the upper coolant 13, and the water is absorbed by the temperature-sensitive water-absorbing polymer 14 accommodated in the coolant 13.

  When the absorption of water in the coolant 13 becomes saturated, the water that has not been absorbed sequentially flows down to the coolant 13 below and is absorbed by each coolant 13 to the saturated state.

  On the inclined surface, as shown in FIG. 7, a plurality of horizontal pipes 19 are provided in the horizontal direction, and each horizontal pipe 19 is connected to a vertical pipe 23 extending from a water storage tank or the like so that water is supplied from each horizontal pipe 19. May be. If it does in this way, without supplying water to a saturated state, each coolant 13 can be made to contain a desired amount of water, and heat storage due to the heat capacity of water can be avoided.

  The on-off valve is opened when the outside air temperature rises and the temperature of the temperature-sensitive water-absorbing / draining polymer 14 exceeds the temperature-sensing point and falls below the temperature-sensing point again. In addition, by taking into account the measured outside air temperature, the maximum temperature reached by the temperature-sensitive water-absorbing polymer 14, the time when the temperature has exceeded the temperature-sensitive point, etc., water corresponding to the amount of evaporation is temperature-sensitive water The functional polymer 14 can be appropriately supplemented.

  The film material 16 is not formed into a bag shape, but the temperature-sensitive water-absorbing polymer 14 mixed with the fibrous resin is directly provided on the structure 12, and the film material 16 is developed on the surface of the temperature-sensitive water-absorbing polymer 14. In this way, the coolant 13 may be configured. When the horizontal roof or the slope is loose, this method is also possible, and a cooling effect and high durability can be obtained.

  FIG. 3 shows another embodiment. This is because a plate material 27 having a plurality of recesses 26 is disposed on the structure 12 of the roof 3, and each of the recesses 26 is filled with the temperature-sensitive water-absorbing polymer 14. The cooling material 13 is configured by attaching a film material 28 such as a non-woven fabric having a light shielding property and at least one of water absorption and water permeability, or vapor permeability.

  Even if it does in this way, a cooling effect is acquired by the temperature-sensitive water-absorbing polymer 14, and since the temperature-sensitive water-draining polymer 14 is accommodated in the recessed part 26, the temperature-sensitive water-draining polymer 14 moves. Since it is stable and can be used even on an inclined surface, and the sunlight is blocked by the film material 28, the temperature-sensitive water-absorbing and draining polymer 14 can be protected from deterioration due to ultraviolet rays and the like, and high durability can be obtained.

  FIG. 4 shows that a plurality of support walls 37 are provided in parallel in a box 36 having a relatively shallow bottom and a wide opening area, and the temperature-sensitive water-absorbing and draining polymer 14 is filled between the support walls 37 so that the opening surface is light-shielding. In addition, a cooling material is configured by attaching a film material 38 such as a nonwoven fabric having at least one of water absorption and water permeability or vapor permeability.

  In this way, when attached to an inclined surface such as the roof 3, the temperature-sensitive water-absorbing polymer 14 is held by the support wall 37, and the cooling effect is obtained by releasing water from the temperature-sensitive water-absorbing polymer 14 as described above. Is obtained.

  Further, if water flows down from above the box 36 or if there is rain, the film passes through the membrane material 38 and flows into the box 36, and the upper temperature-sensitive water-absorbing polymer 14 absorbs water and becomes full. Water overflows from the upper support wall 37 and flows into the temperature-sensitive water-absorbing polymer 14 in the lower support wall 37, and the temperature-sensitive water-absorbing polymer 14 at that stage absorbs water. In this manner, the temperature-sensitive water-absorbing polymer 14 can be made to absorb water sequentially.

  Furthermore, since the opening surface of the box 36 is covered with the film material 38, the temperature-sensitive water-absorbing polymer 14 is not affected by ultraviolet rays or the like, so that the durability is enhanced. It is possible to prevent dust from entering the inside and scattering of the temperature-sensitive water-absorbing polymer 14.

  The support wall 37 may be perpendicular to the roof 3 or may be erected in the vertical direction regardless of the inclination of the roof 3. In addition, a horizontal groove or recess (not shown) is provided on the bottom of the container instead of the support wall 37, and a temperature-sensitive water-absorbing polymer is accommodated inside the groove or recess, and an opening surface of the groove or recess is provided. It may be covered with a film material having light shielding properties and at least one of water absorption and water permeability. Furthermore, if an outlet is provided in the container and water is supplied directly, the membrane material may be a waterproof cloth material that allows water vapor to pass through.

  FIG. 5 shows another example. This is because the frame body 40 having a honeycomb structure partition is placed on the upper surface of the structure body 12, and the temperature-sensitive water-absorbing polymer 14 is filled in the partition space of the frame body 40. The coolant is constituted by covering with a membrane material 38 having water permeability or vapor permeability.

  With such a configuration, the temperature-sensitive water-absorbing and draining polymer 14 is housed in the frame 40 and is stable, and there is no problem even if it is used on an inclined surface. Further, since the frame body 40 has a honeycomb structure, the temperature-sensitive water-absorbing polymer 14 can be directly brought into contact with the structure body 12 such as the roof top surface having a strong structure and a waterproof function, and the cooling effect can be increased. A large amount of the temperature-sensitive water-absorbing polymer 14 can be stored. The partition shape of the frame body 40 is not limited to the honeycomb structure, and may be a square grid or the like.

  FIG. 6 relates to a roof / wall structure in which a water supply device having a water storage tank is assembled. This is a method of filling the water storage tank 42 with a temperature-sensitive water-absorbing polymer 41 and controlling the water discharge from the water-storage tank 42 using the water-absorbing / drainage performance according to the temperature of the temperature-sensitive water-absorbing polymer 41. . That is, a container 17 having an outlet 18 is installed at the top of the roof 3, and the temperature-sensitive water-absorbing polymer 41 is filled inside the container 17.

  The temperature-sensitive water-absorbing polymer 41 has a characteristic of releasing water that has been retained when the temperature of the temperature-sensitive water-draining polymer 41 exceeds the temperature-sensitive point, and absorbing water without releasing it at temperatures below the temperature-sensitive point. ing.

  Furthermore, a plurality of protruding pieces 43 made of a metal material having high thermal conductivity are attached to the inner wall of the water storage tank 42. The protrusion 43 extends inside the temperature-sensitive water-absorbing polymer 41 and transfers heat from the wall surface of the water storage tank 42 to the temperature-sensitive water-absorbing polymer 41 inside.

  With such a configuration, when the temperature of the temperature-sensitive water / drainage polymer 41 exceeds the temperature-sensitive point, the temperature-sensitive water / drainage polymer 41 releases water, and the water flows out from the outlet 18 to the coolant on the roof 3. . Then, the surface temperature of the roof 3 is lowered by evaporative cooling of moisture, and the inside of the building 2 can be cooled.

  Therefore, by allowing the temperature-sensitive water-absorbing polymer 41 of the water storage tank 6 to absorb water, when the outside air temperature rises and the temperature of the temperature-sensitive water-draining polymer 41 reaches the temperature sensing point, water is released and the temperature is increased. Water can be automatically sprayed onto the coolant such as the roof 3 and the outer wall 5 when the outside air temperature is high without using other measuring instruments, water pipe open / close valves, and the like. That is, it has a function of automatically opening and closing a valve according to a temperature change. In addition, rain water can be stored in the container 17 when it rains.

  Further, since the protrusion 43 is provided, the temperature around the water storage tank 42 and the temperature of the temperature-sensitive water-absorbing polymer 41 stored in the water storage tank 42 can be brought close to each other, and the temperature change can be dealt with. Can be operated accurately.

  The water storage tank 42 is not installed at the top of the roof 3 as in the present embodiment, but is installed at another position higher than the top of the roof 3, and the water is supplied to the roof 3 by piping. Good.

Next, experimental examples will be described.
In the experiment, as shown in FIG. 8, a plywood (ceiling surface), a resin-containing temperature-sensitive water-absorbing polymer, and slag mortar are provided on the upper surface of a container made of a heat insulating material, and a thermometer and a heat flow meter inside the container are provided on the slag mortar. Prepare two experimental containers with a thermometer and a thermometer. Supply water to one temperature-sensitive water-absorbing polymer and supply water to the other temperature-sensitive water-absorbing polymer. The top surface was irradiated with sunlight.

  The results show that the outer surface temperature of the container decreases by 5.5 ° C. with respect to the temperature inside the container compared to the experimental container supplied with moisture, that is, when there is evaporative cooling, the experimental container not supplied with moisture. Decreased by 2 ° C., and the plywood (ceiling surface) heat flow decreased by 13 W / m 2.

  In addition, regarding the UV durability of the temperature-sensitive water-absorbing and draining polymer, in the test for 100 hours (corresponding to use for about half a year) using an ultraviolet long life fade meter, the initial water absorption amount of 127 g / g of the polymer was 169 g / 100 after 100 hours. g, the polymer cross-linking was partially broken, and an increase in dissolved polymer was observed.

It is a fragmentary sectional view showing the moisture evaporation cooling roof and wall structure of the present invention. It is a perspective view of the building using the evaporative cooling structure of this invention. It is a fragmentary sectional view which shows the other example of the structure of this invention. It is the perspective view which fractured | ruptured partially which shows the other example of the structure of this invention. It is the fragmentary perspective view which fractured | ruptured partially which shows the other example of the structure of this invention. It is a figure which shows the example of a water supply apparatus. It is a figure which shows the example of piping. It is a figure which shows an experimental apparatus.

Explanation of symbols

2; Building 3; Roof 4; Window 5; Outer wall 6 and 42; Water storage tank 12; Structure 13; Coolant 14 and 41; Temperature-sensitive water-absorbing polymer 15; Fibrous resin 16, 28 and 38; ; Storage container 18; Outlet 19; Horizontal pipe 20; Reed 21; Reservoir 22; Pump 23; Vertical pipe 26; Recess 27; Plate material 36; Box body 37; Partition plate 40; Frame body 43;

Claims (6)

In roof or wall structure where moisture is supplied by rain or rainwater from a water supply device installed at the top of the building,
On the outer surface of the structure constituting the roof / wall body, a temperature-sensitive water-absorbing polymer layer, a light-shielding property and at least water-absorbing property, which are located on the temperature-sensitive water-absorbing polymer layer. A moisture evaporative cooling roof / wall structure characterized in that it is provided with a coolant made of a protective material which is a membrane material such as a non-woven fabric or the like having water permeability or a vapor permeability. The moisture evaporative cooling roof / wall structure according to claim 1, wherein the temperature-sensitive water-absorbing and draining polymer layer is a mixture of a fibrous resin and a temperature-sensitive water-absorbing and draining polymer. The water-evaporating / cooling roof / wall body according to claim 1, wherein the temperature-sensitive water-absorbing / draining polymer layer contains the temperature-sensitive water-absorbing / draining polymer in a recess formed on the surface of the structure. Construction. The moisture-evaporating and cooling roof according to claim 1, wherein the temperature-sensitive water-absorbing polymer layer is one in which the temperature-sensitive water-absorbing polymer is accommodated in a partition space partitioned by a partition plate on the surface of the structure.・ Wall structure. 2. The water-evaporating / cooling roof / wall body according to claim 1, wherein the temperature-sensitive water-absorbing polymer layer is one in which a temperature-sensitive water-absorbing polymer is stored in a storage bag made of a nonwoven fabric as a protective material. Construction. The moisture evaporative cooling roof / wall structure according to claim 5, wherein the temperature-sensitive water-absorbing / draining polymer is mixed with a fibrous resin and stored in a storage bag.

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