JP2002061342A - Waterproof sheet connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water proof sheet connector used particularly for the outer peripheral edge part of a roof backing, in the sheet waterproof structure of a roof to be constructed out of waterproof sheets. SOLUTION: This waterproof sheet connector is installed at the outer peripheral edge part of the roof backing in the sheet waterproof structure of the roof with the waterproof sheet laid on the roof backing. A body part of the waterproof sheet connector has approximately L-shaped cross section as a whole having a fixed flange part for fixing the waterproof sheet onto the roof backing, and a covering flange part projecting downward when installed so as to cover at least the upper part of the outer peripheral edge part of the roof backing. The waterproof sheet connector further has a heating means at a part or the whole surface on the roof backing outer peripheral edge part side when installing the covering flange part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof sheet structure for a roof to be roofed with a waterproof sheet.
In particular, the present invention relates to a waterproof sheet connector used for an outer peripheral edge of a roof base.

[0002]

2. Description of the Related Art A sloped roof such as a gabled roof or a ridge roof of a general house is constructed by, for example, tiled roofing, slate roofing, galvanized roofing, or the like. In terms of construction workability, etc., it is not always satisfactory.

In recent years, Japanese Patent Laid-Open Publication No. Sho 63-30
As disclosed in Japanese Patent No. 0158 and the like, a method of roofing using a waterproof sheet made of a soft synthetic resin is under study. Since such a sheet-roofed roof uses a waterproof sheet with a larger area than tiles and slate, the area that can be constructed at one time is increased, and improvement in construction workability can be expected. Since the fitting waterproof sheets can be joined to each other in a watertight state, the wind resistance and the waterproofness can be expected to be improved.

On the other hand, in an area with a lot of snow, when the temperature rises, a part of the snow on the roof melts, and water drip from the outer peripheral edge of the roof, and again at the outer peripheral edge. They can freeze to form icicles and hang snow and ice masses. Particularly on a sloped roof, the dissolved water tends to collect at the outer peripheral edge of the roof. If icicles or snow and ice masses fall, it is dangerous and may damage buildings.
It is desirable to prevent the formation of icicles and snowflakes, but there has been no effective method so far.

[0005] For example, in Utility Model Registration No. 2539345, a hanging plate extending downward substantially vertically is provided continuously at the tip of the eave (eave tip), and an electric wire is provided inside a portion where the lower edge of the hanging plate is bent. A device for preventing unwinding (semi-frozen ice and snow clumps including icicles hanging from the tip of the eaves) with a hot wire is described. However, a support plate is attached to the outer wall under the eaves and fixed to the support plate. It is attached to the eaves part by doing so, and installation is troublesome, and the watertight treatment of the joint with the roof material is also required separately.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a waterproof sheet connector for preventing the formation of icicles in a simple structure in a waterproof structure of a sloped roof having a waterproof sheet laid on a roof base. With the goal.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a waterproof sheet joining device which is installed on an outer peripheral edge of a roof base in a waterproof sheet structure of a roof in which a waterproof sheet is laid on a roof base. The waterproof sheet connector has a fixing flange portion for fixing the waterproof sheet on the roof foundation, and a covering flange portion projecting downward at the time of installation so as to cover at least an upper part of an outer peripheral edge of the roof foundation. Section is approximately L
A waterproof sheet connector having a U-shaped overall shape, and having a heating means on a part or the entire surface on the side of an outer peripheral edge of the roof base when the covering flange portion is installed.

[0008] By providing heating means on the covering flange portion which is the outer peripheral edge of the roof, water melted on the roof does not freeze again at the outer peripheral edge, and the formation of icicles is prevented. In addition, the heat generated from the heating means is transmitted to the covering flange portion and the fixed flange portion, and the outer peripheral edge of the roof including the waterproof sheet is heated. Is also prevented.
In addition, since the above-mentioned heating means is installed on the outer peripheral edge of the roof base of the covering flange portion, the heating means is less likely to come into direct contact with dissolved water, be exposed to wind and rain, and has excellent durability. further,
Since the joint of the waterproof sheet, which is the roofing material, also functions as an anti-icing mechanism for icicles and ice and snow clumps, an anti-icing mechanism can be easily provided when installing the waterproof sheet, and the structure is simple with few joints at the mounting part. Therefore, it is excellent in watertightness and durability.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings, but the present invention is not limited to these. FIG. 1 is a perspective view showing an example of the structure of a waterproof sheet connector used in the present invention, and FIG. 2 is a cross-sectional view taken along line II of the waterproof sheet connector of FIG.

The main body 2 of the waterproof sheet joining device 1 shown in FIG.
At the end of the plate-shaped fixed flange 3, the cover has a covering flange 4 which is substantially vertically downward at the time of installation and has a folded portion 5 at the end, and has a substantially L-shaped cross section as shown in FIG. 2. It has an overall shape. A plurality of fixing fixture mounting holes 6 are formed in the fixed flange portion 3. A sheet-shaped (sheet-shaped) heater 7 is attached to almost the entire surface in the length direction on the side that becomes the outer peripheral edge of the roof base when the covering flange portion 4 is installed. As shown in FIG. 8, the heater 7 is made of a vinyl chloride resin sheet 7b of the same type as a waterproof sheet described below as a protective layer having an insulating function on both sides of a heating element 7a formed of a sheet of carbon fiber using a binder. , 7b, and has an electrode (copper tape) 7c for energizing the heating element 7a, a power cord 8, and has a temperature measuring mechanism, a temperature adjusting mechanism, a safety protection mechanism, and the like (not shown). Then, the power cord 8 is connected to a power supply (not shown) for use. The fixing of the heater 7 to the main body 2 is performed by fusing a vinyl chloride resin sheet 7b on the surface of the heater 7.

The waterproof sheet connector 1 shown in FIG. 1 is made of a PVC steel sheet 1b in which a polyvinyl chloride resin 1a of the same material as the following waterproof sheet is laminated on both sides of the steel sheet. Even if it is heated, it does not suffer damage such as peeling or alteration of the polyvinyl chloride resin, and appropriately transfers the heat generated from the heater 7 to heat the whole of the covering flange portion and the fixed flange portion, so that water is removed. It is designed so that it does not freeze or develop snow masses on the junction. Further, the heater 7 has a water-resistant structure and an appropriate flexibility, so that the waterproof sheet connector 1 is not damaged even if it is slightly distorted or bent during installation.

A waterproof sheet structure for a roof using the waterproof sheet connector of the present invention has a structure as shown in FIGS. In the case of the waterproof sheet structure in FIG. 3, the sloped roof forms a gabled roof, and the roof base 11 has two sloped surfaces 12 on both sides of the ridge. And it has a predetermined length, for example, streaky projections 2 on the surface.
The waterproofing sheet 20 for roofing, which is a belt-shaped molded product of a soft polyvinyl chloride resin integrally formed, has a length direction coinciding with a purlin direction (indicated by X in FIG. 3) and a width direction. The purlin direction (X) on both the slope surfaces 12, 12 so as to match the gradient direction (indicated by Y in FIG. 3).
And in parallel with each other in the gradient direction (Y).

The waterproof sheet bonding device 1 is provided at the outer peripheral edge of the roof base 11 such as a gable portion and an eaves portion, and the mountain-shaped sheet bonding plate 14 is provided at the ridge portion. , A plurality of disc-shaped sheet joining plates 16 are provided at predetermined intervals along the purlin direction (X) and the gradient direction (Y). The above waterproof sheet joining device 1
Each of the joining plates other than the above is also made of a PVC steel sheet in which polyvinyl chloride resin, which is the same material as the waterproof sheet 20, is laminated on both front and back surfaces of the steel sheet, and has a mounting hole. The above waterproof sheet joining device 1 and each other joining plate are:
It is fixed to the roof base 11 by fasteners 33, 34, 36 such as open nails and tapping screws that penetrate the mounting holes.

The waterproof sheet connector 1 has a fixed flange 3 having an outer peripheral edge on the upper surface of the roof base 11, similarly to a waterproof sheet connector used for an outer peripheral edge such as a gable portion or an eaves portion. Along with an adhesive sealing material 41 such as a butyl rubber-based sealing tape or a silicone rubber caulking material, and is arranged so as to cover the outer peripheral end surface of the roof base 11 with the covering flange portion 4. In this state, the fixing flange 3 is fixed to the roof foundation 11.

At the joint between the waterproof sheets 20,
Slope direction (Y) on both sloped surfaces 12, 12 of the roof base 11
A strip-shaped sheet joining plate 15 made of a polyvinyl chloride steel sheet, which extends continuously along the axis, is provided, and is fixed by a fixing tool such as an open leg nail or a tapping screw. Further, a patch belt made of a soft vinyl chloride resin is provided on the upper surface of the band-shaped sheet joining plate 15,
It is joined and integrated by solvent welding and hot air welding, and watertightness of the upper surface of the strip-shaped sheet joining plate is achieved.

Then, in this state, the waterproof sheet 20 and the above-mentioned waterproof sheet connector 1 and each of the other sheet bonding plates 14,
15 and 16 are joined by solvent welding, hot air welding, and an adhesive, and the side edges of the waterproof sheet 20 adjacent in the width direction are joined by solvent welding, hot air welding, and an adhesive.

Further, on the outermost surface of the ridge portion, a ridge cover sheet 18 made of a soft polyvinyl chloride resin is formed along the ridge portion.
Are provided continuously, and both slope surfaces 12, 1
2 both tarpaulins 20, 20 arranged at the top
Are bonded to the smooth surfaces 24, 24 of the waterproof sheets 20, 20 by solvent welding, hot air welding, or an adhesive in a state of being bridged between the opposing side edges.

The overall shape of the main body of the waterproof sheet joining device of the present invention is such that a fixing flange portion for fixing the waterproof sheet on the roof base and a roof base covering at least the upper part of the outer peripheral edge of the roof base are installed. There is no particular limitation as long as the section has a generally L-shaped overall shape having a covering flange projecting downward. In particular, when the main body is installed at the outer peripheral edge from the gable portion to the eaves, the planar shape of the main body may be L-shaped according to the shape of the outer peripheral edge as shown in FIG.

The main body of the waterproof sheet joining device of the present invention may have another configuration as long as the operation of the present invention is not impaired. For example, as shown in FIGS. It may have a concave portion (indicated by 9 in FIG. 5) or a protruding portion (indicated by 10 in FIG. 6) for easily holding a certain heater or the like on the covering flange portion. Also, the number and arrangement of the fixing fixture mounting holes for fixing to the roof foundation are appropriately set in accordance with the size of the waterproof sheet joint.

The size of each part of the main body of the waterproof sheet joining device of the present invention is not particularly limited, and may be appropriately set according to the size of the outer peripheral edge of the roof, desired waterproofness, workability, and the like.

The material constituting the main body of the waterproof sheet connector of the present invention can fix the waterproof sheet, conducts the heat generated by the heating means, and is not damaged by the heat generated by the heating means. If it is not particularly limited, the same material as the material used for the conventional waterproof sheet joint can be used,
It can be selected as appropriate according to the constituent materials of the waterproof sheet. In particular, a resin-coated metal plate in which a main body is formed on at least one surface of a core material made of metal with a resin layer such as a vinyl chloride resin or a polyolefin resin of the same type as a waterproof sheet used in a sheet waterproof structure. In the case of consisting of, since the heat generated from the heating means is easily transmitted to the entire main body by the metal plate as the core material and the entire main body is heated,
Compared to heating only the tip, freezing over a wide area is prevented and the antifreezing property is excellent. Furthermore, since the waterproof sheet connector of the present invention has a resin layer, it can be welded or fused to the waterproof sheet, and in that case, heat transfer to the waterproof sheet is large, so that the heating portion is further expanded and the anti-freezing property is improved. Is improved.

The materials constituting the core material and the resin layer are not particularly limited, and can be the same as those of a commonly used joining tool. However, when the core material is an aluminum-based metal plate, the heat conductivity is high. Excellent anti-freezing properties

The configuration of the heating means used in the waterproof sheet connector of the present invention is not particularly limited as long as the main body of the waterproof sheet connector is not damaged. For example, a sheet-like heater or a linear or rod-like heater as in the above embodiment may be mentioned, but a sheet heater as in the above-described embodiment is preferably used.
Further, the heating means, since the waterproof sheet connector of the present invention is installed outdoors, preferably has a waterproof structure,
Further, it is preferable that the waterproof sheet joint member has an appropriate flexibility so as not to be damaged even if some distortion or bending occurs in the waterproof sheet joint at the time of installation. As the heater as described above, a sheet heating element (such as a composite of carbon or the like formed into a nonwoven fabric, a carbon fiber or carbon molded using a binder or the like) or a linear heating element (heating wire such as a nichrome wire) is used. , Carbon fiber, etc.), those obtained by compounding them, those attached to a support, and those having a protective layer. Examples of the planar heater include a planar heater in which a planar or a plurality of linear heating elements are held by a support or the like. Examples of the support and the protective layer include those made of a metal or a resin. When the main body of the waterproof sheet connector of the present invention is made of a resin or a resin-coated metal plate, the support and / or the protective layer of the heater may be used. If the main body or the resin constituting the surface of the main body is formed of the same kind of resin, the support or the protective layer of the heater and the main body can be easily welded or fused, and the heat transfer property and the heater This is preferable because the retention of the resin is improved.

The heating means may be attached to a part of the covering flange on the side of the outer peripheral edge of the roof base, for example, a plurality of spots or a plurality of stripes in the vertical direction. , May be attached to the entire surface.

In the present invention, the method of attaching the heating means to the main body of the waterproof sheet joining device is as follows.
Or a method of fixing by welding or fusion of the surface such as heat, a method of fixing using a mounting member or an adhesive,
A method of forming the main body of the waterproof sheet connector into a shape holding a heating means as shown in FIGS. Also,
The heating means may be fixed to the waterproof sheet connector, or may be detachable.

The method of laying a waterproof sheet on a roof substrate using the waterproof sheet joint of the present invention can be performed in the same manner as the conventional method of laying a waterproof sheet on a roof substrate. There is no particular limitation on the type and shape of the waterproof sheet and the state of the waterproof sheet. For example, in the above embodiment, the waterproof sheet made of polyvinyl chloride resin is used, but the waterproof sheet to be installed is made of synthetic rubber such as polyolefin resin in addition to synthetic resin such as polyolefin resin. It may be.

The type of the roof to which the waterproof sheet structure of the roof using the waterproof sheet connector of the present invention is applied is not particularly limited. However, a sloped roof such as a gable roof or a ridge roof as in the above embodiment is conventionally used. A roof on which icicles are easily formed is preferable.

[0028]

By installing the waterproof sheet connector of the present invention on the outer peripheral edge of the roof foundation, the waterproof sheet is laid on the roof foundation, particularly on the sloped roof foundation. In the waterproof structure, the formation of icicles can be prevented with a simple configuration, and by using a waterproof sheet,
The range of use of the construction of the slope roof which is excellent in the workability, wind resistance, waterproofness, durability, aesthetics, etc. is further expanded.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of the structure of a waterproof sheet connector of the present invention.

FIG. 2 is a cross-sectional view of the waterproof sheet connector of FIG. 1 taken along the line II.

FIG. 3 is an example of a waterproof sheet structure for a sloped roof using the waterproof sheet connector of the present invention and laying a waterproof sheet on a sloping underlayer; FIG. 5 is a partially cutaway perspective view showing a partially wound state.

FIG. 4 is a sectional view taken along line II-II of FIG. 3;

FIG. 5 is a cross-sectional view showing another example of the structure of the main body of the waterproof sheet connector of the present invention.

FIG. 6 is a cross-sectional view showing another example of the structure of the main body of the waterproof sheet connector of the present invention.

FIG. 7 is a plan view showing another example of the structure of the waterproof sheet connector of the present invention.

FIG. 8 is a diagram showing an example of the structure of a heater used in the waterproof sheet connector of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tarp joint 2 Main part 3 Fixed flange part 4 Covering flange part 5 Folding part 6 Fixing hole 7 Heater

Claims (4)

[Claims] 1. A waterproof sheet joint structure for laying a waterproof sheet on a roof foundation, wherein the waterproof sheet joint is installed on an outer peripheral edge of the roof foundation, and the main body of the waterproof sheet joint is provided. A fixing flange portion for fixing the waterproof sheet on the roof substrate, and a covering flange portion projecting downward at the time of installation so as to cover at least an upper portion of the outer peripheral edge of the roof substrate, and has a substantially L-shaped cross section. A waterproof sheet connector having a whole shape of a shape, and having a heating means on a part or the entire surface on the outer peripheral edge side of the roof base when the covering flange portion is installed. 2. The waterproof sheet joining device according to claim 1, wherein a main body of the waterproof sheet connector is formed of a resin-coated metal plate having at least one surface of a metal core and a resin layer of the same type as a waterproof sheet used in a sheet waterproof structure. The waterproof sheet connector according to claim 1, wherein 3. The waterproof sheet joining device according to claim 1, wherein the waterproof sheet joining device is installed at an outer peripheral edge of a sloped roof foundation. 4. The waterproof sheet connector according to claim 1, wherein the heating means is provided with a planar heater.