JP2523651Y2 - Snow melting roofing material - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel-shaped snow-melting roof material which is easy to lay and has excellent snow-melting efficiency.

[0002]

2. Description of the Related Art The processing of snow cover in heavy snowfall areas is a major problem. In particular, the work of scraping off a large amount of snow on a roof requires a great deal of labor and cost, and the work is dangerous. In addition, the partially melted snow icicles on the eaves and freezes on the eaves, and this fall can sometimes hurt the human body.

[0003] Under these circumstances, various methods have been devised to melt snow at the interface with the roof surface and slide it down before a large amount of snow piles up, such as passing a hot water pipe through the back of the roof or installing a heating element. Roofing material has been devised.
Among them, the type in which a hot water pipe is installed has a problem that heat efficiency is not good, equipment costs are high, and maintenance is complicated. For this reason, a snow-melting roof material having a heat-generating structure in which a planar heating element that generates resistance heat by energization is attached to the back surface of the roof material (Japanese Utility Model Application Laid-Open No. 1-92422, 1-92).
No. 92423) is more practical.

[0004]

However, in the heat generating structure according to the prior art described above, since the sheet heating element to be installed is formed by impregnating a non-woven fabric with a heat storage material together with a conductive material, heat is not applied to the roof material. Before the heat is transmitted, a phenomenon occurs in which heat is taken away by the heat storage material or the nonwoven fabric, and there is a problem that the time of the start of snow melting is delayed or extra energy is consumed. Also,
A method of laying a sheet heating element made of a heat-resistant fiber coated with a conductive substance on a roofed roof plate and roofing it with an iron plate is also adopted, but the heating element is nailed when the iron sheet roof is fixed. However, there are still inconveniences in construction, such as damage to the power source and the need to perform power supply wiring for the heating element by drilling holes in the base plate.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to facilitate roofing without damaging the heating element, and to provide a panel-shaped snow melting roof having a planar heating structure with high snow melting efficiency. To provide materials.

A snow melting roof material according to the present invention for achieving the above object is a metal panel roof material formed of a triangular portion where roof materials overlap each other and a rectangular portion exposed as a roof surface, wherein the rectangular portion is formed. An intermediate joint part and an end part in which a heat insulating material is spread in a layered manner via a sheet metal plate and a sheet heating element provided with a current-carrying connector and an overheating control device on the back surface of the heat generating connector and connects the roof materials in the horizontal direction. It is characterized by comprising a joint portion.

Although the metal panel to which the present invention is applied is not particularly limited, a preferable example is a metal panel for exterior which was previously filed by the present applicant (Japanese Utility Model Laid-Open No. 63-98912, JP-A-63-98913, JP-A-64-3921,
By applying these metal panels and the joint structure, the spread of the sheet heating element and the electric wiring including the current-carrying connector according to the present invention can be performed without impairing the adhesion and at the same time. It can be configured well.

As the planar heating element constituting the present invention, for example, conductive carbon black, graphite powder, expanded graphite, carbon fiber, etc., alone or in combination, are wet-processed together with a resistance adjusting material such as alumina fiber or wood pulp. It is most preferable to use a structure in which a sheet of a carbonaceous material that is made of paper is wrapped with a heat-resistant resin, and it exhibits a uniform heat generation property that is effective immediately with little power consumption.

The snow-melting roofing material of the present invention is made of a sheet of carbonaceous material showing immediate and uniform heat generation on the back surface of a rectangular portion exposed as a roofing surface of a panel roofing material made of a metal having high thermal conductivity. It has a structure in which a configured sheet heating element is spread, and a metal thin plate with a heat reflection mechanism and a heat insulating material with a heat shielding function are laminated on the back side in a laminated manner, so that it can be used in a short time with little power consumption. The roof surface generates heat efficiently.

[0010] In addition, since a current-carrying connector and an excessive temperature rise control device for the temperature are individually installed on each panel of the sheet heating element, a panel roofing material is connected to the panel-heating member when the roofing work is performed. Can be assembled by fitting the joint portions. That is, the roof materials in the vertical direction overlap each other by the triangular portions, and in the horizontal direction, they are connected to each other via the intermediate joint portion and the end joint portion, so that a step-like roof surface can be easily laid. Further, safety is sufficiently ensured by the function of the overheating control device. Therefore, a roof with high snow melting efficiency can be configured by simple construction.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a top perspective view of the snow melting roof material according to the present invention.
FIG. 1 shows substantially the entire structure of a metal panel roofing material 1 disclosed in Japanese Utility Model Laid-Open No. 64-2921. In the metal panel roofing material 1, a triangle portion where the roofing materials overlap each other and a rectangular portion exposed as a roof surface are integrated via an intermediate joint portion 2, and the triangle portion has a folded portion 3 for returning water, A draining rib 4 and a nail hole 5 are formed, and an end joint 6 is formed at the edge of the rectangular portion by pressing.

The metal panel roofing material 1 is made of a metal plate having good heat conductivity, for example, aluminum, copper, steel, titanium or an alloy thereof. Those coated with a water-repellent resin such as a polyester-based or polyester-based resin are applied.

FIG. 2 is a partially cutaway sectional view showing the back surface of the snow-melting roof material according to the present invention of FIG. 1, and FIG. 3 is a side sectional view taken along line AA of FIG. On the back surface of the rectangular portion of the metal panel roofing material 1, a sheet heating element 7, a thin metal plate 8, and a heat insulating material 9 are provided.
Are spread in layers. As shown in the enlarged sectional view of FIG. 4, the structure of the sheet heating element 7 is such that a sheet of a carbonaceous substance 10 is covered with a film of a heat-resistant resin 11, and electrode portions 12 are formed at both ends of the sheet. The metal thin plate 8 is formed of a heat-reflective glossy film layer such as an aluminum foil to increase the thermal efficiency and to function to prevent the influence of water such as dew condensation on the sheet heating element. The heat insulating material 9 is formed as a layer of glass fiber felt or a resin foam material such as a heat-resistant styrene foam to prevent heat dissipation to the back side.

The electrode section 12 of the sheet heating element 7 has a current-carrying connector 14 for connecting to an adjacent snow-melting roof material or a power supply 13.
An overheating control device 15 using a fuse, a thermostat, a reed switch, and the like is connected via a lead wire 16.

FIG. 5 shows a state of the roof which is constructed by laying the joints of the snow-melting roof materials according to the present invention by fitting the joints together and continuously connecting them. In the rectangular part exposed as a surface, the snow-melting roof material in the horizontal direction is connected via the intermediate joint part 2 and the end joint part 6, and in the triangular part (broken line part), it overlaps with the snow-melting roof material on the upper surface and the step-like roof surface To form
At the time of construction, the current-carrying connector 14 is sequentially connected to the current-carrying connector of the adjacent snow-melting roof material and stored in the space between the roof material and the roof base. In this state, as shown in FIG. 6, the power supply connector 14 is housed and installed in a space formed at the top of a triangular portion 17 (partially cut away in cross section) of the metal panel roofing material. Are covered with a metal panel roofing material 1 and kept in a watertight state.

FIG. 7 shows the roof base plate 18 and the metal panel roof plate 1.
The current-carrying connector 14 is stored and installed in the gap. In this case, since the metal panel roofing materials 1 are arranged in a staggered manner, the energizing connectors 14 are also arranged in a staggered manner.

[0017]

Since the snow-melting roofing material of the present invention has the above-described structure and mechanism, the following various practical effects can be obtained. (1) Laying work can be performed easily without damaging the planar heating element, and the roof surface can be efficiently and uniformly heated in a short time with little power consumption when energized. Moreover, since the overheating control device is built in, the safety is high. (2) The snow-melting roof material can be selectively installed in a site where the danger of snow accumulation is high, such as the eaves. (3) If the snow melting roof material breaks down, it can be repaired by replacing only that part.

[Brief description of the drawings]

FIG. 1 is a top perspective view of a snow-melting roof material according to the present invention.

FIG. 2 is a partially cutaway cross-sectional view showing the back surface of the snow-melting roof material according to the present invention.

FIG. 3 is a side sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged sectional view of a planar heating element.

FIG. 5 is an explanatory perspective view showing a roof state where the snow-melting roof material of the present invention is laid and constructed.

FIG. 6 is a partially cutaway perspective view showing a roof state where the snow-melting roof material of the present invention is laid and constructed.

FIG. 7 is an explanatory perspective view showing a roof state where the snow-melting roof material of the present invention is laid and constructed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal panel roofing material 2 Intermediate joint part 3 Folding part 4 Drainage rib 5 Nail hole 6 End joint part 7 Planar heating element 8 Metal thin plate 9 Heat insulation material 10 Carbonaceous substance 11 Heat resistant resin 12 Electrode part 13 Power supply 14 Power supply connector 15 Overheating control device 16 Lead wire 17 Triangular part 18 Field plate

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-94281 (JP, A) JP-A-63-161270 (JP, A) JP-A-1-154713 (JP, U) JP-A-63 156368 (JP, U) Shokai 63-98913 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A metal panel roofing material formed from a triangular portion in which roofing materials overlap with each other and a rectangular portion exposed as a roof surface, comprising a current-carrying connector and an overheating control device on the back surface of the rectangular portion. A snow-melting roof material comprising an intermediate joint portion and an end joint portion in which a heat insulating material is spread in a laminated manner via a sheet heating element and a metal thin plate, and the roof materials in the horizontal direction are connected to each other. .