JPH09310452A - Heat insulating panel for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply a heat insulating panel to the heat insulating roof construction of roof tile construction by forming a plurality of crosspieces receiving grooves mutually arranged at fixed pitch and extending in the perpendicular direction to the gradient of a roof, and a plurality of drainable vent grooves formed deeper than the respective crossbeam receiving grooves and extending along the roof gradient on the upper face of a heat insulating panel. SOLUTION: A plurality of crossbeam receiving grooves la mutually arranged at fixed pitch and extending in the perpendicular direction to the gradient of a roof are formed on the upper face of a heat insulating panel 1. Further, a plurality of drainable vent grooves 1b deeper than the respective crossbeam receiving grooves and extending along the roof gradient are formed on the upper face of the heat insulating panel 1. When this heat insulating panel 1 is interposed between a roof bed material and a roof surface material, because the vent groove 1b is formed deeper than a crossbeam, the communicating state in the upper/lower direction is maintained without being obstructed by the crossbeams. Consequently, it can be applied to heat insulating roof construction not only for metallic roof construction but roof tile construction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel for a roof, and more specifically, it can be widely applied not only to a metal roof structure but also to a heat insulating roof structure such as a tiled roof structure, and its construction can be facilitated. In particular, the present invention relates to a heat insulating panel for a roof capable of forming a heat insulating roof structure having excellent breathability and drainage. In the following description, the "insulation panel for roof" is abbreviated as "insulation panel".

[0002]

2. Description of the Related Art In a building such as a house, it is generally known that a heat insulating panel is interposed between a roof surface material and a roof base material in order to block solar heat in summer or to improve indoor heating and cooling efficiency. Has been. FIG. 6 shows a conventional example of this type of heat insulating roof structure. In this conventional example, two layers of heat insulating panels (d) and (e) are provided on a base plate (b) as a roof base material supported by a plurality of rafters (a) via a moisture-proof or waterproof sheet (c). ) Is installed. On the lower heat insulation panel (e), a plurality of presser bars (f) extending along the roof slope direction and fixed to the base plate (b) are installed at predetermined intervals. The upper heat insulating panel (d) is installed between the presser bars (f).

The upper surface of each presser bar (f) slightly protrudes from the upper surface of each upper heat insulating panel (d), and a metal roofing material (g) of a predetermined width is provided on the upper surface of each presser bar (f). It is stretched as a roof surface material. A ventilation layer (h) is formed along the roof slope direction between each metal roof material (g) and each upper heat insulating panel (d).

[0004]

By the way, in the above-mentioned conventional example, since the upper and lower two-layer heat insulation panels (d) and (e) are simple plate-like and do not have a drainage function, the metal roofing material is not provided. When the rainwater leaks to the inside of (g), the rainwater may leak from the joints of the heat insulating panels (d) and (e) onto the base plate (b). Moreover, since the presser bars (f) are spaced from each other by a predetermined distance and extend along the roof slope direction, it is not possible to directly fix a tile roof material such as a flat tile to this.

However, as shown in FIG. 7, if a plurality of tile rails (i) extending orthogonally to the roof slope direction are horizontally mounted on each of the above-mentioned presser rails (f) at a predetermined pitch, a flat roof tile is formed on the roof tiles. (J)
Tile roof material such as can be fixed. However, in this case, various works for arranging the roof tiles (i) at a predetermined pitch are required, which requires time and effort for construction. in addition,
Since the space between the flat roof tile (j) and the upper heat insulating panel (d) becomes large, there is a risk that the flat roof tile (j) will be damaged by punching.

The present invention has been made in view of the above circumstances, and its purpose is not limited to a metal roof structure but can be widely applied to a heat insulating roof structure such as a tiled roof structure, and its construction can be facilitated. Another object of the present invention is to provide a heat insulating panel that can form a heat insulating roof structure that is excellent not only in breathability and drainage.

[0007]

As a means for achieving the above object, the present invention is a heat insulating panel for a roof interposed between a roof base material and a roof surface material, which are arranged at a predetermined pitch. And a plurality of drainage ventilation grooves that are formed deeper than the respective jetty storage grooves and extend along the roof slope direction on the upper surface. .

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a heat insulating panel according to an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view showing the structure of a heat insulating panel, FIG. 2 is a sectional view taken along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. 4 is a heat insulating roof structure using a heat insulating panel. 5 is a cross-sectional view orthogonal to the roof slope direction, FIG. 5 is a cross-sectional view along the roof slope direction of a heat-insulating roof structure using heat insulation panels, and FIG. 6 is orthogonal to the roof slope direction of a heat-insulating metal roof structure using heat insulation panels of the conventional example. FIG. 7 is a cross-sectional view orthogonal to the roof slope direction of the heat-insulating tile roof structure using the heat-insulating panel of the conventional example.

As shown in FIGS. 1 to 3, a heat insulating panel (1) of the present invention is a roof heat insulating panel interposed between a roof base material and a roof surface material. A plurality of jetty housing grooves (1a) arranged and extending orthogonally to the roof slope direction, and a plurality of drainable ventilation grooves (1b) formed deeper than the respective jetty housing grooves (1a) and extending along the roof slope direction. And has on the upper surface.

The heat insulation panel (1) is in the form of a substantially square plate having a length of 1200 mm, a width of 1500 mm, and a thickness of about 50 mm. A staggered joint surface (1c) having a crank-shaped cross-sectional shape is formed on the peripheral edge of each heat insulating panel (1). The heat insulating panels (1) are configured to be vertically and laterally joined to each other without a gap by the staggered joint surfaces (1c).

Each of the pier housing grooves (1a) has a width of, for example, 40
The depth is about 15 mm and the depth is about 15 mm. For example, four strips are formed on the upper surface of the heat insulating panel (1) at a pitch interval of 300 mm. It should be noted that each of the pier storage grooves (1a) is determined according to the cross-sectional dimension of the pier, and has a width of 30 to 80 mm and a depth of 10 mm.
It is appropriately set within a range of up to 30 mm. In addition, the pitch interval of each of the jetty housing grooves (1a) is appropriately set in the range of 150 to 450 mm depending on the size of the roof surface material.

Each ventilation groove (1b) has, for example, a width of 10 m.
m, depth is about 20 mm, and many are formed on the upper surface of the heat insulating panel (1) at a pitch interval of about 50 mm. The width of each ventilation groove (1b) can be appropriately changed within a range of 10 to 30 mm and the pitch interval is within a range of 50 to 100 mm, but the depth is set to be at least about 5 mm deeper than that of the pier housing groove (1a). Sufficient air permeability and drainage are to be obtained even when the pier is fitted in 1a).

Since the above-mentioned heat insulation panel (1) is a constituent member of the roof structure, it is important that it is lightweight and excellent in workability. Therefore, the heat insulation panel (1) is formed using a foamed resin having closed cells. As such a foamed resin, for example, a polystyrene-based resin, a polyurethane-based resin, or a polyolefin-based resin such as polyethylene or polypropylene can be used.

The foaming ratio of the heat insulation panel (1) using the foamed resin is usually 10 to 40 times, preferably 20 to 30 times. In a particularly preferred embodiment, the heat insulation panel (1) is made of polystyrene having a foaming ratio of 20 to 30 times.

The heat insulating panel (1) is made of the above-mentioned foamed resin as a whole material, or may be laminated with an inorganic heat insulating material such as glass wool or calcium silicate to use the foamed resin as a part of the material. .

Next, an example of use of the heat insulating panel (1) of the present invention constructed as above will be described. As shown in FIGS. 4 and 5, the heat insulation panel (1) is interposed between the base plate (3) supported on the rafters (2) and the flat roof tile (4). That is, the heat insulation panels (1) are laid vertically and horizontally on the moisture-proof or waterproof sheet (5) laid on the base plate (3) with no staggered joint surfaces (1c). At this time, in each heat insulation panel (1), the shackle housing groove (1a) extends orthogonally to the roof slope direction, and the ventilation groove (1
b) is installed so as to extend along the roof slope direction.

The respective piers (6) are fitted into the respective pier housing grooves (1a) formed on the upper surface of the respective heat insulation panels (1). The width of each pier (6) is the same as or slightly smaller than the width of the pier housing groove (1a) (up to about −5 mm), and the thickness is set to be substantially the same as the depth of the berth housing groove (1a). The upper surface of 1) and the upper surface of the same are substantially flush with each other. And, each pier (6) is attached to the base plate (3) with an insulating panel (1).
It also has the function of a presser bar for fixing the roof tile and the function of a roof bar for fixing the flat roof tile (4), and is fixed to the base plate (3) by nailing. In this way, each pier (6) can be positioned simply by fitting it into each pier housing groove (1a), and its construction can be performed very easily.

The respective piers (6) extend at a predetermined pitch interval (for example, 300 mm) from each other in a direction orthogonal to the roof slope direction, and each flat roof tile (4) is nailed or the like by using this as a supporting member. It is fixed by an appropriate means. Instead of each flat roof tile (4), a metal roofing material may be stretched by nailing or bonding.

In the heat-insulating tile roof structure thus constructed, the plurality of ventilation grooves (1b) of each heat-insulating panel (1) extending along the direction of the roof slope are formed deeper than each of the shackle-accommodating grooves (1a). Therefore, the vertical communication state is maintained without being blocked by the respective piers (6). Therefore, even if rainwater leaks to the inside of each flat roof tile (4), the rainwater does not stay and is quickly discharged to the outside through each ventilation groove (1b). Further, since the outside air can flow through the inside of the roof through each ventilation groove (1b), the temperature and humidity inside the roof will not rise abnormally. Therefore, it is possible to prevent the piers (6) and the flat roof tiles (4) from being corroded or the heat insulating panel (1) from being deteriorated.

Further, since each flat roof tile (4) is installed right above each heat insulation panel (1), the load applied to this is distributed to the heat insulation panel (1) side. Therefore, even if the compressive strength of each flat roof tile (4) is comparatively weak, it is possible to effectively prevent the breakage of the flat roof tile (4).

[0021]

As described above, since the heat insulating panel according to the present invention has a plurality of pier-accommodating grooves which are arranged at a predetermined pitch with each other and extend orthogonally to the roof slope direction, the roof surface material is Insulating roofs such as tile roof structures are not limited to metal roof structures by fitting each pier that has both the function of a fixed roof tile and a retainer rail that fixes the heat insulation panel to the roof base material into each ridge storage groove. It can be widely applied to structures. At this time, each pier can be positioned simply by fitting it into each pier housing groove of the heat insulation panel, and therefore the construction can be facilitated. In addition, it has a plurality of ventilation grooves that extend along the roof slope direction on the top surface, and each ventilation groove is formed deeper than each pier storage groove to maintain a continuous communication state. The structure can be configured.

In the heat insulation panel according to claim 3, wherein the respective piers are fitted in the respective groves accommodating grooves so as to be substantially flush with each other, a roof surface material can be stretched right above the heat insulation panel, and the roof surface material and the heat insulation panel can be provided. Even if the compressive strength of is weak, the load applied to them can be dispersed to effectively prevent the damage.

[Brief description of drawings]

FIG. 1 is a plan view showing a structure of a heat insulating panel according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a cross-sectional view orthogonal to a roof slope direction of a heat insulating roof structure using heat insulating panels.

FIG. 5 is a cross-sectional view of a heat insulating roof structure using heat insulating panels, taken along the roof slope direction.

FIG. 6 is a cross-sectional view orthogonal to a roof slope direction of a heat insulating metal roof structure using a heat insulating panel of a conventional example.

FIG. 7 is a cross-sectional view orthogonal to a roof slope direction of a heat insulating tile roof structure using a heat insulating panel of a conventional example.

[Explanation of symbols]

 １: Insulation panel １a: Groove storage groove １b: Ventilation groove １c: Staggered joint surface ２ ： Rafters ３ ： Field plate ４ ： Flat roof tile ５ ： Moisture-proof or waterproof sheet ６ ： pier

Claims (3)

[Claims] 1. A heat insulating panel for a roof interposed between a roof base material and a roof surface material, wherein a plurality of pier housing grooves are arranged at a predetermined pitch and extend orthogonally to a roof slope direction. A heat insulating panel for a roof, having a plurality of drainable ventilation grooves formed on the upper surface and deeper than each of the shackle housing grooves and extending along the roof slope direction. 2. The roof insulation panel according to claim 1, wherein a foamed resin is used for all or part of the material. 3. A plurality of piers having the functions of both a retaining rail for fixing the heat-insulating roof panel to the roof base material and a tile rail for fixing the roof surface material are fitted substantially flush with each pier housing groove. The heat insulating panel for a roof according to claim 1 or 2.