JP4830208B2 - A system to wet the rooftop or veranda - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a system for keeping the rooftop or veranda of a building moist.
[0002]
[Prior art]
The roof of a flat roof type building such as a building is usually finished with presser concrete, so the surface becomes hot due to solar radiation, and the heat penetration into the building causes an increase in air conditioning load, especially in summer . In large cities, etc., heat is released from a number of rooftops that have been stored by solar radiation, causing a heat island phenomenon.
[0003]
As one of the countermeasures, for example, as disclosed in Japanese Patent Application Laid-Open No. 8-1317729, after sufficient waterproofing measures are taken on the roof surface, the soil is embanked and vegetation is applied to the soil. Yes.
[0004]
[Problems to be solved by the invention]
However, with this method, the soil to be embanked must be constructed to a thickness necessary for vegetation rooting, which increases the weight and causes problems such as the pressure load of the top concrete on the roof, as well as rain Maintenance costs were high due to problems with wastewater management due to soil moisture and soil loss.
[0005]
The present invention solves the above problems, and its purpose is to reduce the weight without the need for soil to keep it moist, keep the roof top in a constant moist state, and its latent heat of evaporation. Provided is a roof wetting system capable of suppressing a temperature rise on the roof surface.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 is characterized in that a water diffusion sheet having water diffusibility is laid on the waterproof layer on the roof or veranda of a building, and a part of the water conveyance sheet is placed on the roof or veranda. A system for moistening the rooftop or veranda communicated with the water supply section provided in the section ,
A pot in which plants are planted is provided on the water guide sheet,
The pot has an opening on its bottom surface, and the soil in the pot is configured to be able to contact the water guide sheet through the opening,
A pumping material such as woven fabric or cotton cloth is laid on the bottom of the pot, and water can be supplied from the water guide sheet to the soil in the pot via the pumping material .
[0013]
In addition , the plant can absorb the water supplied from the water guide sheet from its roots and evaporate it from the leaf portion, etc., and maintain the wet function, and can also perform rooftop greening. For this reason, compared with the case where the conventional vegetation soil is embanked, it is lightweight and management is also easy. In addition, when pots with plants are used, the pots are easy to move, and the range of shapes and dimensions is wide, so it is possible to green the roof and veranda with a high degree of freedom in design. it can.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, reference examples and preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 and 2 show a rooftop 1 to which a reference example of the present invention is applied. On the top surface of a top concrete 2 with a wallet 2a integrally standing on both sides, a waterproof layer 3 and a heat insulating layer 4 are interposed. Thus, presser concrete (or asphalt concrete) 5 is placed to provide waterproofing to the rooftop 1. Further, in one corner of the rooftop 1, a groove 5a is cut in the presser concrete 5, and a water supply pipe 6 is provided in the groove 5a.
[0015]
The upper surface of the presser concrete 5 is entirely covered with a water-diffusible water guide sheet 7 (for example, woven fabric or non-woven fabric), and one end edge of the water guide sheet 7 is in the groove 5a as shown in FIG. It is drooping to. Further, as shown in FIGS. 2 and 3, a water pumping block 8 is laid all over the upper surface of the water guide sheet 7. This water-lifting block 8 is formed by, for example, sintering a pulverized product of tiles, and includes an infinite number of fine continuous voids that penetrate between the upper and lower surfaces and cause capillary action. .
[0016]
A water sensor or the like (not shown) may be disposed in the water guide sheet 7 or the water pumping block 8, and a control function that can open and close the water source for the water supply pipe 6 according to the detection output of the sensor may be provided.
[0017]
For example, in an excessively wet state such as during rain, the sensor detects this state. As a result, the valve of the water source for the water supply pipe 6 is closed, and one of the excess rainwater that has penetrated into the water guide sheet 7 through the pumping block 8. The part is drained to the drain side through the groove 5a.
[0018]
In addition, when the pumped water block 8 or the water guide sheet 7 has been dried by sunshine or the like, the water is opened in the fibers of the water guide sheet 7 by opening the water source valve for the water supply pipe 6 by detecting the dry state. It is absorbed and discharged to the surface through the water pumping block 8 to keep the surface in a wet state, and at the same time, an excessive temperature rise on the rooftop is suppressed by the latent heat of vaporization.
[0019]
Regarding drainage, rainwater may be drained by separately providing drainage grooves and drainage pipes.
[0020]
Further, as shown in FIG. 4, the water supply pipe 6 may be disposed on the presser concrete 5 and the surface thereof is covered with a cover 10 to protect the water supply pipe 6. In this case, the cover 10 is configured to have a shape that does not hinder the movement of water moving in the water guide sheet 7.
[0021]
FIG. 5 shows a second reference example of the present invention. In addition, the same code | symbol is attached | subjected to the same location as said 1st reference example , the description is abbreviate | omitted, and it demonstrates using a different code | symbol only to a different location.
[0022]
In this reference example , the perforated sheet 20 is laid on the surface of the water guide sheet 7 in place of the water pumping block 8, and the local load suppression effect by pressing the water guide sheet 7 and the stepping pressure is obtained. is there. And since a water | moisture content evaporates from the hole 20a formed in the perforated sheet 20, the temperature rise inhibitory effect of the rooftop 1 can be acquired similarly to the above. In this reference example , the weight can be further reduced as compared with the first reference example .
[0023]
FIG. 6 shows a third reference example of the present invention. In this reference example , instead of the pumped water block 8 in the reference example , a plant block 30 set to a thickness and hardness capable of planting the plant is laid on the water guide sheet 7 as shown in (a), In this, seeds or seedlings of the plant 31 are planted at appropriate intervals. The plant 31 grows with time, and is planted in the plant block 30 as shown in FIG. I try to plan.
[0024]
The plant block 30 used for this is a block having a light and continuous void with a certain amount of water retention and fertilization functions that are usually used in horticulture, etc., and does not hinder root growth in the same manner as vegetation soil. It has characteristics. It is desirable to supply not only water but also fertilizer dissolved in water from the water supply pipe 6.
[0025]
Figure 7 shows a implementation form of the present invention. In this embodiment, the pot 42 in which the plant 40 is planted is placed on the water guide sheet 7, the block material 44 is disposed between the pots 42, and the sidewalk 46 is configured on a part of the roof. . An opening is provided in the bottom surface of the pot 42, and the soil in the pot 42 is configured to directly contact the water guide sheet 7 through the bottom surface opening . The pot 42 is a non-water-lifting pot such as a plastic pot , and a pumping material such as a polyester woven fabric or cotton cloth is laid on the bottom thereof so that water can be reliably supplied from the water guide sheet 7 to the soil in the pot 42. It has become .
[0026]
FIG. 8 shows a modification of the configuration shown in FIG. In FIG. 8, a pot 42 and a block material 44 having different dimensions are appropriately combined to form a three-dimensional design as a whole.
[0027]
Since the pot 42 is easy to move and the range of selection of shape and dimensions is wide, planting and arranging a plant in such a pot 42, as shown in FIG. 7 and FIG. The roof can be planted with a high degree of freedom.
[0028]
In the third reference example and the embodiment described above, moisture evaporates from the leaves of the plants 31 and 40, so that the same rooftop cooling effect as described above can be obtained, and at the same time, air purification by photosynthesis and the like can be achieved. A rejuvenating effect can also be obtained.
[0029]
Furthermore, by combining the materials of the first and second reference examples without greening the entire rooftop, it is possible to form the rooftop 1 in a variety of spaces such as a greening space, a promenade, and a plaza. is there.
[0030]
In addition, when aiming at rooftop greening, you may make it install the pallet-like member which encloses lightweight soil and lightweight soil on the water conveyance sheet | seat 7. FIG.
[0031]
Moreover, although each said reference example and embodiment demonstrated the case where the rooftop was moistened, this invention is not limited to this, It is applicable also to a veranda part.
[0032]
【The invention's effect】
As is apparent from the above description, the roof or veranda system according to the present invention can be made lightweight without the need for soil to maintain the wetness, and the roof or veranda floor can be constantly moistened. The temperature rise of the rooftop or the veranda can be suppressed by the latent heat of vaporization.
[0033]
Further, by installing a pop bets planted plants on water guide sheet, while maintaining the wet function can also be achieved greening roof or veranda. In particular, when a pot is used, the pot is easy to move and the range of selection of shape and dimensions is wide, so that the roof and veranda can be greened with a high degree of freedom in design.
[Brief description of the drawings]
FIG. 1 is an explanatory cross-sectional view showing an entire rooftop according to a reference example of the present invention.
FIG. 2 is an enlarged cross-sectional view of a part A in FIG.
FIG. 3 is an enlarged cross-sectional view of a portion B in FIG.
FIG. 4 is a partial enlarged cross-sectional view showing a modified example of a water supply pipe.
FIG. 5 is a partially enlarged sectional view showing a second reference example of the present invention.
FIG. 6 is a partially enlarged sectional view showing a third reference example of the present invention.
7 is a schematic diagram showing an implementation form of the present invention.
FIG. 8 is a schematic configuration diagram showing a modification of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rooftop 2 Top concrete 3 Waterproof layer 4 Heat insulation layer 5 Presser concrete 6 Water supply pipe 7 Water conveyance sheet 8 Water-lifting block 10 Cover 20 Perforated sheet 30 Plant block 31, 40 Plant 42 Pot

Claims (1)

A system that wets the rooftop or veranda by laying a water-diffusible water-conducting sheet on the waterproof layer on the rooftop or veranda of the building, and allowing a part of the water-conducting sheet to communicate with the water supply unit provided on the rooftop or veranda Because
A pot in which plants are planted is provided on the water guide sheet,
The pot has an opening in its bottom;
Wet a roof or veranda characterized in that a water pumping material such as woven fabric or cotton cloth is laid on the bottom of the pot, and water can be supplied from the water guide sheet to the soil in the pot through the water pumping material. System.

Images