JP2002309726A - Heat insulation waterproof structure of roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation waterproof structure of various roofs capable of ensuring waterproof performance even if the roof itself is not waterproof enough, attaining sufficient heat insulation, and reducing the cost by simplifying works. SOLUTION: A projecting and recessed panel formed by a water impermeable thin plate material having a substantially fixed thickness and having tapered hollow projecting parts 6 formed longitudinally and horizontally at fixed spaces on the lower part is laid on the roof 1, and an interrupting layer formed of concrete 8, soil, sand and gravel is laid thereon. Spaces 7 formed in the periphery of the hollow projecting parts 6 are arranged to communicate with the outside air to enable ventilation, and the upper side of the projecting and recessed panel 4 is guided to a drain means such as a drain groove and a drain pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating and waterproofing structure for various types of roofs, such as a concrete structure roof slab and a corrugated roof.

[0002]

2. Description of the Related Art A roof slab of a concrete structure has a structure in which rainwater is smoothly drained by heat-insulating and waterproofing or by providing a water gradient. However, it may deteriorate over time and eventually leak water. In that case, large-scale insulation and waterproofing work is required again.

Further, in order to prevent the roof slab from being overheated by solar heat and to suppress a rise in indoor temperature, soil is laid on the roof and grass is planted. However, the effect of heat insulation is not sufficient. If the slab is not sufficiently waterproof, deterioration of the slab is accelerated.

In order to solve such a problem, as described in JP-A-7-305462, a clog leg-shaped panel is laid on a waterproofed slab, and
A structure in which a finishing surface material is laid has also been proposed.

[0005]

However, in such a structure, since the panel itself does not have a waterproofing action, if the initial waterproofing function does not work due to aging, it is the same as the conventional structure. Therefore, once water leakage occurs, it is necessary to perform waterproofing again. Also,
Insulation is not sufficient, and the cost is high.

The technical problem of the present invention is to focus on such a problem, and even if the waterproofing of the roof itself is insufficient, the subsequent waterproofing is ensured and the heat insulation is sufficient, and the construction is simplified. An object of the present invention is to realize a low-cost heat-insulating waterproof structure for a roof.

[0007]

The technical problem of the present invention is solved by the following means. Claim 1 lays on the roof an uneven panel having a substantially constant thickness of a water-impermeable thin plate material, and has tapered hollow projections formed at regular intervals in the lower part at a certain interval on the roof, and concrete or soil on the roof. It is a heat-insulating waterproof structure of a roof in which a barrier layer made of sand, gravel, etc. is laid.

As described above, the uneven panel made of a non-permeable sheet material having a substantially constant thickness is laid on a roof slab, a tin roof, or the like. There is no risk of water penetration. Therefore, even if the roof slab is not waterproofed or the initial waterproofing is deteriorated and water leaks, the subsequent waterproofing is ensured.

[0009] Further, in the panel, since tapered hollow projections are arranged vertically and horizontally at regular intervals at a lower portion, when the panel is laid on a roof, a continuous space is formed around the hollow projections. . And because this space exerts the heat insulation effect,
Insulation of roof slabs is also ensured.

[0010] Since the hollow convex portion is tapered and the lower side is gradually tapered, the contact area between the hollow convex portion and the roof slab or the like is small. As a result, the amount of heat transmitted to the roof slab or the like via the hollow convex portion is extremely small, and heat insulation is performed more effectively.

Since a barrier layer made of concrete, soil, sand, gravel or the like is laid on the uneven panel, sunlight is blocked. As a result, heat insulation is ensured in combination with the heat insulating effect of the space around the hollow convex portion of the uneven panel.

[0012] A second aspect of the present invention is a heat insulating and waterproofing structure for a roof in which a space formed around the hollow convex portion on the roof according to the first aspect is communicated with outside air to allow ventilation.

As described above, the space formed around the hollow projection on the roof slab or the like is communicated with the outside air to allow ventilation, so that the space between the roof slab and the uneven panel can be reduced. Since the air is circulated and high-temperature air can be prevented from stagnating, the heat insulation effect is further ensured. As a result, since the temperature change of the roof slab is small throughout the year, deterioration of the concrete structure such as cracks and cracks can be suppressed.

According to a third aspect of the present invention, there is provided a heat insulating and waterproof structure for a roof in which the upper side of the uneven panel according to the first or second aspect is guided to drainage means such as a drain groove or a drain pipe.

As described above, by forming the upper side of the uneven panel to a drainage means such as a drainage groove or a drainage pipe,
Since the water on the upper side of the uneven panel is reliably drained, it is possible to reliably prevent the water from leaking below the uneven panel and the roof slab.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment will be described as to how a heat insulating and waterproofing structure for a roof according to the present invention is actually embodied. FIG. 1 is a sectional view showing an embodiment of a heat insulating and waterproofing structure for a roof according to the present invention.

Reference numeral 1 denotes a roof slab having a concrete structure, which is formed on an outer wall 2. A parapet wall 3 is integrally formed on the outer periphery of the roof slab 1. The roof slab 1 may be waterproofed by a conventional construction method, or may be a slab that has been waterproofed but deteriorates and leaks rain. Alternatively, the slab may not be waterproofed at all.

On such a roof slab 1, an uneven panel 4 made of a water-impermeable thin plate is laid. FIG.
Is an embodiment of the uneven panel 4, (1) is a perspective view of the uneven panel 4 as viewed from above, and (2) is a perspective view of the uneven panel 4 of FIG. This uneven panel 4
Is made of a non-corrosive panel made of synthetic resin, aluminum, stainless steel or the like having a thickness of, for example, about 1 to several mm, and has irregularities formed at regular and horizontal intervals.

That is, when viewed from the upper side, mortar-shaped depressions 5 are formed at regular intervals in the vertical and horizontal directions. Since the wall thickness is substantially constant over the entire surface, the hollow 5 becomes a conical hollow convex portion 6 when viewed from the back side. Therefore, when the uneven panel 4 is laid on the roof slab 1, a continuous space 7 is formed around the concave area other than the hollow convex section 6, that is, around the hollow convex section 6.

As shown in FIG. 2 (2), the contact area between the lower end 6a of the hollow projection 6 and the roof slab 1 is small because the hollow projection 6 is conical and tapered, Is transmitted to the roof slab 1 to a minimum.

The dimensions and intervals of these irregularities 5 and 6 can be arbitrarily determined within a range suitable for being laid on the roof slab 1. (3) and (4) in FIG. 2 are cross-sectional shapes of the uneven panel. In (3), since both the depression 5 and the hollow projection 6 are formed in a waveform at a constant period, the area of the depression 5 and the area of the space 7 are substantially equal. On the other hand, in the case of (4), the space between the adjacent hollow protrusions 6 is increased to make the area of the space 7 larger than the area of the depression 5.

As described above, the ratio between the depression 5 and the space 7 is also
It is optional as long as strength and deformation are not hindered. The cross-sectional shape of the hollow convex portion 6 may be a curved surface bulging toward the space 7 as shown by a broken line in (4), or a curved surface recessed toward the dent 5 as shown by a chain line. Can also. In other words, it may be tapered.

As shown in FIG. 1, such an uneven panel 4 is laid on the roof slab 1. The uneven panel 4 of FIG.
, The space 7 is hemispherical. That is, FIG.
(4) approximates the shape indicated by the chain line.

Adjacent areas of the concavo-convex panel 4 are caulked by overlapping or adhering their ends. In the outer peripheral portion of the roof slab 1, the outer peripheral end of the uneven panel 4 is adhered to the parapet wall 3 for caulking.

On the upper side of the uneven panel 4, concrete 8 is cast in the illustrated example. The recess 5 is also filled with concrete and hardened. Reference numeral 14 denotes a reinforcing wire mesh.

Then, the lowest position of the concrete layer 8 is communicated with the existing rainwater pipe 9, and the concrete layer 8
The rainwater that has fallen on is drained by the rainwater pipe 9. Alternatively, a drain groove may be provided on the outer periphery of the concrete layer 8 to drain the water to the outside.

As described above, the concrete layer 8 has a drainage facility, and the uneven panel 4 is impervious to water. Does not penetrate.

Therefore, the roof slab 1 under the uneven panel 4 does not necessarily need to be waterproofed, and even if the roof slab 1 leaks due to deterioration over time, waterproofing can be performed by the uneven panel 4.

The lower side of the uneven panel 4 is in a state where the uneven panel 4 of FIG.
Is a space 7. Moreover, this space 7
It communicates over the entire surface of the roof slab 1. Therefore, heat insulation to the roof slab 1 is performed by the space 7.

The communicating space 7 is provided with ventilation pipes 10, 11, and 12 so that outside air can enter and exit to be ventilated. The ventilation pipe 10 has a vertical hole formed so as to penetrate the roof slab 1, and an insect net 13 is provided at a lower end thereof.
The upper end is open to a space 7 formed between the hollow protrusions 6. This ventilation pipe 10 is preferably provided under the eaves or on the ceiling of the veranda, but may be opened in the room on the top floor or in the ceiling.

The ventilation pipe 11 penetrates the parapet wall 3. In other words, the slope has a downward slope, the inner end is open to the space 7, and the outer end is open to the outside. An insect net 13 is provided at the outer end.

The ventilation pipe 12 communicates with the upper part of the space 7 formed between the hollow projections 6. That is, a through hole in the vertical direction is formed in the concrete layer 8 on the uneven panel 4 above the space 7. An inverted U-shaped tube 12 is set up in the through hole. At the outer end of the tube 12, an insect net 13 is provided.

As described above, the uneven panel 4 and the roof slab 1
Is communicated with the outside air, so that the space 7 is ventilated with the outside air. As a result, the superheated air in the space 7 is discharged to the outside and the low-temperature outside air flows in instead, so that the temperature rise of the air in the heat insulating space 7 can be effectively suppressed. The ventilation may be natural ventilation or mechanical forced ventilation.

As ventilation means for ventilation with outside air, 3
Although the types of ventilation pipes 10, 11, and 12 are illustrated, ventilation pipes of any orientation may be provided in places other than these.

In FIG. 1, the height of the space 7 formed by the hollow projections 6 is preferably, for example, about 5 cm, but may be outside this range. The thickness of the concrete layer 8 is preferably about 5 to 7 cm, but is not limited thereto.

In the embodiment shown in FIG. 1, concrete is cast on the uneven panel 4. However, instead of concrete, plants such as lawn can be cultivated by laying soil such as lightweight soil. . In this case, a rainwater pipe 9 is provided to prevent excess water from accumulating in the soil. A filter is provided at the upper end of the rainwater pipe 9 so that the rainwater in the soil is guided into the rainwater pipe 9.
The opening at the upper end of the rainwater pipe 9 is buried in the soil.

The concrete layer shown in FIG. 1 and the above-mentioned soil layer can be used in combination. That is, the soil is laid on the concrete layer 8 of FIG. 1, plants and the like are planted, and vegetables are cultivated.

When it is not necessary to cultivate plants, sand may be laid on the uneven panel 4, or gravel such as marble or crushed stone may be laid. As described above, when the gravel or the soil is laid directly on the uneven panel 4 without providing the eight concrete layers, a groove can be provided on the outer periphery of the uneven panel 4 to serve as a drainage unit.

As described above, since the thin panel made of synthetic resin or the like is used as the uneven panel 4, it can be manufactured at low cost. In addition, although it is a thin plate, it is necessary to lay concrete, soil, gravel, etc. on it.
However, there is no risk of deformation and the strength can be maintained. In particular, since the hollow 5 inside the hollow convex portion 6 is filled with concrete, soil, gravel, or the like, the hollow convex portion 6 can function as a leg for mechanically supporting the upper side of the uneven panel 4.

Further, the sunlight is blocked by the barrier layer made of concrete, soil, gravel, etc. on the uneven panel 4, so that the uneven panel 4 can be prevented from being irradiated with sunlight, and the space 7 can be exposed to sunlight. Heating can be prevented.

In the illustrated embodiment, the roof slab 1 is substantially horizontal. However, the present invention can be applied to an inclined roof using a corrugated galvanized steel plate or the like. However, in the case of a corrugated roof, greening is also possible by devising a gradient or providing a means for preventing outflow of soil or the like. Therefore, the present invention can be applied to various roofs other than the roof slab 1.

[0042]

According to the first aspect of the present invention, the uneven panel made of a non-permeable sheet material having a substantially constant thickness is laid on the roof. There is no danger of water permeation. Therefore, even if the roof slab is not waterproofed or the initial waterproofing is deteriorated and water leaks, the subsequent waterproofing is ensured.

Further, since the above-mentioned panel has hollow convex portions tapered vertically and horizontally at regular intervals at a lower portion, a continuous space is formed around the hollow convex portion when the panel is laid on a roof. You. And since this space exhibits a heat insulating effect, heat insulation of a roof slab and the like is also ensured.

Since the hollow convex portion is tapered and the lower side is gradually tapered, the contact area between the hollow convex portion and the roof slab or the like is small. As a result, the amount of heat transmitted to the roof slab or the like via the hollow convex portion is extremely small, and heat insulation is performed more effectively.

Since a barrier layer made of concrete, soil, sand, gravel or the like is laid on the uneven panel, sunlight is blocked. As a result, heat insulation is ensured in combination with the heat insulating effect of the space around the hollow convex portion of the uneven panel.

According to a second aspect of the present invention, the space formed around the hollow protrusion on the roof slab or the like is communicated with the outside air to allow air to flow between the roof slab and the uneven panel. Since the air in the space can be prevented from flowing and the high-temperature air can be prevented from stagnating, the heat insulation effect can be further ensured. As a result, since the temperature change of the roof slab is small throughout the year, deterioration of the concrete structure such as cracks and cracks can be suppressed.

According to the third aspect of the present invention, since the upper side of the uneven panel is guided to drainage means such as a drain groove or a drain pipe, the water above the uneven panel is drained reliably.
Water leakage to the lower side of the uneven panel and water leakage to the roof slab and the like can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a heat insulating and waterproofing structure for a roof according to the present invention.

FIG. 2 is an embodiment of an uneven panel, wherein (1) is a perspective view of the uneven panel as viewed from above, (2) is a perspective view of the inverted panel of FIG. 1 (1), and (3) (4) () Is a sectional view showing an embodiment of various shapes of irregularities.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roof slab 2 Exterior wall 3 Parapet wall 4 Uneven panel 5 Depression 6 Conical hollow convex part 7 Space 8 Concrete layer S Sun 9 Rainwater pipe 10.11.12 Vent pipe 13 Insect net

Claims (3)

[Claims] 1. A non-permeable sheet having a substantially constant thickness,
An uneven panel with tapered hollow projections formed vertically and horizontally at regular intervals at the bottom is laid on the roof, and a barrier layer made of concrete, soil, sand, gravel, etc. is laid on it. And the roof insulation and waterproof structure. 2. The heat insulating and waterproofing structure for a roof according to claim 1, wherein a space formed around the hollow convex portion on the roof is communicated with outside air to allow ventilation. . 3. The heat insulating and waterproofing structure for a roof according to claim 1, wherein an upper side of the uneven panel is led to drainage means such as a drainage groove or a drainage pipe.