JP7199055B2 - Waterproof structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a waterproof structure applicable to a pitched roof, and more particularly to the technical field of a structure in which a flat portion is slanted in one direction.

BACKGROUND ART Conventionally, folded-plate roofs and slate roofs, which are constructed by laying corrugated metal plates side by side, are known as pitched roofs (see, for example, Patent Documents 1 and 2).

In Patent Document 1, a plate-shaped heat insulating member is laid on a waterproof substrate that constitutes a metal roof such as a folded plate roof, a fixing disk is placed on the heat insulating member, and a fixing screw is used to The fixing disc is fixed to the waterproof substrate. A hot-melt adhesive layer is provided on the upper surface of the fixing disk. A synthetic resin waterproof sheet is laid on the heat insulating member and the fixing disk, and this waterproof sheet is adhered and fixed to the hot-melt adhesive layer of the fixing disk.

In Patent Document 2, a plurality of heat insulating panels with heat insulating material interposed between metal skins are arranged side by side so as to be adjacent to each other, and a waterproof sheet is laid on these heat insulating panels. A resin layer is formed on the metal skin. The waterproof sheet is heat-sealed to the resin layer of the metal skin.

JP 2016-75109 A Japanese Patent No. 4685592

By the way, the fixing method using fixing screws in Patent Document 1 is called a mechanical fixing method because it is a mechanical fixing method. In the case of this mechanical fixing method, since a plurality of fixing discs are arranged at predetermined intervals, portions of the waterproof sheet between the fixing discs are inevitably left unfixed.

Assuming such a mechanical fixing method, for example, assuming a strong wind like a typhoon, flexible sheets such as those made of vinyl chloride are generally used as waterproof sheets. Therefore, when the wind blows on the waterproof sheet, the portion between the fixing discs in the waterproof sheet is deformed so as to be lifted from the reinforcing material. When the waterproof sheet is deformed so as to be lifted from the reinforcing member, a force is applied obliquely upward to the fixing disk. The force applied to the fixing disk acts on the fixing screw, and the fixing screw is similarly subjected to an obliquely upward force.

After the construction by the mechanical fixing method is completed, the restraining force of the fixing screws and fixing discs is superior to the force of the wind in the initial period, but many years have passed since the completion of the construction. When the force of a strong wind acts repeatedly, if the roof material is made of a relatively thin plate material such as a deck plate or folded plate, the roof material is broken down by the vertical component of the force that repeatedly acts in the oblique direction. It may be deformed upward, and the tightening force of the fixing screw may decrease.

If the tightening force of the fixing screw is reduced, the horizontal component of the force that repeatedly acts in the oblique direction causes the heat insulating material and reinforcing material to move horizontally, and the head of the fixing screw also moves horizontally. It is conceivable that it will move in the direction Since the horizontal movement of the head of the fixing screw acts on the part screwed into the roof material, the roof material at the screwed part is deformed, and as a result, the fixing screw is not screwed. The diameter of the hole in the hole becomes larger. As the diameter of the hole into which the fixing screw is screwed increases, the binding force of the fixing screw is greatly reduced. Performance cannot be maintained.

Further, in Patent Document 2, the waterproof sheet is fixed to the metal outer skin of the heat insulating panel by heat sealing, and the heat insulating panel is fixed to the waterproof substrate with a plurality of screws, so the fixing disk of Patent Document 1 is used. There is an advantage that local concentration of load is less likely to occur as in the case of

However, since the upper and lower surfaces of the heat insulating material are covered with metal skins, respectively, and the upper metal skin and the lower metal skin are joined to the heat insulating material at the peripheral edge, the number of members constituting the heat insulating panel increases. At the same time, the manufacturing process becomes complicated, which leads to an increase in cost.

The present invention has been made in view of the above points, and an object of the present invention is to enable maintenance of waterproof performance over a long period of time at low cost.

In order to achieve the above object, in the present invention, a heat insulating panel is constructed so that a metal skin is provided on the upper surface of the heat insulating material, but the metal skin is not provided on the lower surface, and the heat insulating panel is installed at a plurality of locations on the waterproof base. Fastening fixation or adhesion fixation was carried out, and the waterproof sheet was joined to the metal skin.

A first invention is a waterproof structure of a sloped roof with a flat part inclined in one direction, wherein a plurality of sheets are arranged side by side on the waterproof base of the sloped roof so as to be adjacent to each other, and a plurality of locations are provided on the waterproof base. A heat insulating panel that is fastened or adhesively fixed, and a synthetic resin waterproof sheet that is laid on the upper surface of the heat insulating panel. The heat insulating panel includes a rectangular heat insulating material and the heat insulating material. and a metal skin having a resin coating material covering the upper surface of the base metal plate adhered to the base metal plate, and the lower surface of the heat insulation panel is configured so that the heat insulating material is exposed, The lower surface of the waterproof sheet is joined to the metal skin, at least one side of the heat insulating material is formed to protrude from the edge of the metal skin, and the edge of the metal skin of the heat insulating material of the heat insulating panel. The upper surface of the portion protruding from the metal sheath and the upper surface of the metal sheath are formed so as to be positioned on the same plane .

According to this configuration, a plurality of heat insulating panels are arranged side by side on the waterproof base so as to be adjacent to each other, and a plurality of portions of each heat insulating panel are fastened or adhesively fixed to the waterproof base, and then the waterproof sheet is laid to form the heat insulating panel. The waterproof structure of the sloped roof can be obtained by bonding to the metal outer skin of Roofs with indoor ceilings can be easily fastened and fixed, but on roofs without indoor ceilings, there is a risk that metal chips generated when screws (fastening members) are screwed in may scatter indoors when fastening and fixing. Therefore, adhesive fixation is desirable.

For example, if a strong wind blows, a force acts on the waterproof sheet to make it float. Since the load is distributed to a plurality of fastening portions, the load applied to each fastening portion, particularly the load in the horizontal direction, is reduced. Therefore, waterproof performance is maintained over a long period of time.

In addition, since the heat insulating panel exposes the heat insulating material from the bottom surface and does not have a metal skin on the bottom surface, the number of members is reduced compared to the case where the metal skin is provided on the top and bottom as in Patent Document 2, and the structure is improved. Be simple.

In addition , since at least one side of the heat insulating material protrudes from the edge of the metal skin, the metal skins of adjacent heat insulating panels can be prevented from interfering with each other due to, for example, thermal expansion.

In addition, since there is no level difference between the portion of the heat insulating material that protrudes from the metal skin and the metal skin, it is difficult for the waterproof sheet to form a dent when the waterproof sheet is laid.

A second invention is characterized in that, in the first invention, two continuous sides of the heat insulating material are formed so as to protrude from the edges of the metal skin.

According to this configuration, since two continuous sides of the heat insulating material protrude from the edge of the metal skin, the metal skins of the heat insulating panels adjacent to each other in two directions in a state of being arranged side by side are prevented from interfering with each other due to, for example, thermal expansion. can be

A third aspect of the invention is characterized in that, in the first or second aspect of the invention, the end portion of the heat insulating panel is formed with a concave portion or a convex portion that fits into the other adjacent heat insulating panel.

According to this configuration, the heat insulating panels adjacent to each other can be fitted and integrated.

According to a fourth invention, in any one of the first to third inventions, the heat insulating material of the heat insulating panel is made of isocyanurate foam or foamed polyethylene.

According to this configuration, it is possible to reduce the weight of the heat insulating material with high heat insulating performance.

According to a fifth invention, in any one of the first to fourth inventions, the waterproof sheet and the covering material are made of soft vinyl chloride resin or polyolefin resin.

According to this configuration, the waterproof sheet and the covering material can be firmly joined.

According to the present invention, the heat insulating panel is configured so that the metal skin is provided on the upper surface of the heat insulating material while the metal skin is not provided on the lower surface, and the heat insulating panel is fastened or adhesively fixed at a plurality of locations to the waterproof substrate. Since the waterproof sheet is bonded to the metal skin, it is possible to obtain a waterproof structure that can maintain waterproof performance over a long period of time at low cost.

1 is a cross-sectional view of a roof to which a waterproof structure according to Embodiment 1 is applied; FIG. FIG. 2 is a sectional view taken along line II-II in FIG. 1; FIG. 2 is a cross-sectional view taken along line III-III in FIG. 1; It is the perspective view which looked at the heat insulation panel from upper direction. FIG. 5 is a cross-sectional view taken along line VV of FIG. 4; It is sectional drawing which shows the fitting structure of the heat insulation panel which concerns on a modification. 1 equivalent view according to Embodiment 2. FIG. FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7; FIG. 8 is a cross-sectional view taken along line IX-IX in FIG. 7; 1 equivalent view according to Embodiment 3. FIG. FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 10; 1 equivalent view according to Embodiment 4. FIG. 1 equivalent view according to Embodiment 5. FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 13; FIG. 1 equivalent view according to Embodiment 6. FIG. 1 equivalent view according to Embodiment 7. FIG. 1 equivalent view according to Embodiment 8. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. It should be noted that the following description of preferred embodiments is essentially merely illustrative, and is not intended to limit the invention, its applications, or its uses.

(Embodiment 1)
FIG. 1 is a sectional view of a roof 1 to which a waterproof structure according to Embodiment 1 of the present invention is applied. Embodiment 1 is a waterproof structure applied when the building is new construction. The roof 1 comprises a synthetic slab deck plate 10, a heat insulating material 11, a heat insulating panel 12, a fixing disc 13, a fixing screw 14, and a waterproof sheet 15. - 特許庁This roof 1 is a sloped roof with a flat portion slanted in one direction. The direction of the gradient can be set arbitrarily. In addition, although the cross section of each member is shown in FIG.

The composite slab deck plate 10 is formed by bending a metal plate having a thickness of about 1.2 mm, for example. The deck plate 10 for synthetic slabs constitutes a waterproof substrate.

The heat insulators 11 are conventionally known plate-shaped members, and a plurality of the heat insulators 11 are arranged side by side on the upper surface of the deck plate 10 so as to be adjacent to each other. The heat insulating material 11 can be omitted, but when the heat insulating material 11 is provided, the heat insulating material 11 can also be a part of the waterproof base.

A plurality of heat insulating panels 12 are arranged side by side on the heat insulating material 11 so as to be adjacent to each other. Each insulation panel 12 may be of the same construction, but may vary in external shape. As shown in FIG. 4, the heat insulating panel 12 has a substantially rectangular shape, and its outer shape may be rectangular or square. The thickness of the heat insulating panel 12 is not particularly limited, but can be set to, for example, 5 mm or more and 50 mm or less. Moreover, the width and length of the heat insulating panel 12 can be set to arbitrary dimensions of several tens of centimeters or more.

The heat insulating panel 12 includes a heat insulating material 12a and a metal skin 12b. The heat insulating material 12a is made of resin foam. Examples of resin foams include extruded polystyrene foam (XPS), bead polystyrene foam (EPS), phenol foam, rigid polyurethane foam, polyethylene foam, and the like. When the heat insulating panel 12 is fastened and fixed to a waterproof substrate, a rigid polyurethane foam with high weather resistance and heat resistance is preferable, and a so-called polyisocyanurate foam containing an isocyanurate ring with high flame resistance is preferable. When a heat insulating panel is to be adhesively fixed, foamed polyethylene, which has a relatively low hardness, is preferable among heat insulating materials in order to absorb the unevenness of the substrate.

The outer shape of the heat insulating material 12a is the same as the outer shape of the heat insulating panel 12, and therefore has a substantially rectangular shape. That is, as shown in FIG. 4, the four sides (the first side A1, the second side A2, the third side A3, and the fourth side A4) forming the edge of the heat insulating material 12a extend linearly. , two continuous sides (first side A1 and second side A2, second side A2 and third side A3, third side A3 and fourth side A4, fourth side A4 and first side A1) are substantially perpendicular to each other intersect to form

As shown in FIG. 5, the metal skin 12b has a base metal plate 12c adhered to the upper surface of the heat insulating material 12a and a resin covering material 12d covering the upper surface of the base metal plate 12c. The base metal plate 12c is made of, for example, a steel plate or the like, and its thickness is not particularly limited, but can be set within a range of, for example, 0.5 mm or more and 1.5 mm or less.

The outer shape of the metal outer cover 12b is substantially rectangular, and as shown in FIG. 4, four sides (first side B1, second side B2, third side B3, third 4 sides B4) extend linearly, and two continuous sides (first side B1 and second side B2, second side B2 and third side B3, third side B3 and fourth side B4, third side B3 and fourth side B4) extend linearly. The four sides B4 and the first side B1) cross each other so as to form a substantially right angle.

Two continuous sides forming the edge of the heat insulating material 12a are formed to extend horizontally from the edge of the metal skin 12b. That is, the first side A1 and the second side A2 of the heat insulating material 12a are respectively longer than the first side B1 and the second side B2 forming the edge of the metal skin 12b. positioned outside the Also, the first side A1 of the heat insulating material 12a and the first side B1 of the metal skin 12b extend parallel to each other. The second side A2 of the heat insulating material 12a and the second side B2 of the metal skin 12b also extend parallel to each other.

As shown in FIG. 5, the separation distance L between the first side A1 of the heat insulating material 12a and the first side B1 of the metal skin 12b is not particularly limited, but can be set to, for example, 10 mm or more and 30 mm or less. can. In this embodiment, two continuous sides of the heat insulating material 12a are formed so as to protrude from the edge of the metal skin 12b. It may be formed so as to protrude from the edge of 12b.

The coating material 12d can be made of a soft vinyl chloride resin or a polyolefin resin, and is integrated with the base metal plate 12c in a bonded state.

As shown in FIG. 5, the upper surface 12f of the portion of the heat insulating material 12a of the heat insulating panel 12 that protrudes from the edge of the metal skin 12b and the upper surface of the metal skin 12b (the upper surface of the covering material 12d) are located on the same plane. is formed as

On the other hand, the lower surface of the heat insulation panel 12 is not provided with the metal skin 12b. Therefore, since the lower surface of the heat insulating panel 12 is configured so that the heat insulating material 12a is exposed, the lower surface of the heat insulating material 12a directly contacts the upper surface of the heat insulating material 11 in this embodiment. Since there is no metal skin 12b on the lower surface of the heat insulating panel 12, the structure of the heat insulating panel 12 is simple and the number of parts can be reduced. In addition, since the heat insulating material 12a made of a foam material faces the lower surface of the heat insulating panel 12, even if the upper surface of the heat insulating material 11 has some irregularities or steps, the heat insulating material 12a does not adhere to the upper surface of the heat insulating material 11. It deforms so as to follow the shape of the upper surface of the heat insulating material 11 .

When molding the heat insulating panel 12, although not shown, a molding apparatus having an upper mold and a lower mold is prepared, the upper mold is opened, and a metal is placed on the lower mold so that the covering material 12d faces downward. Place the skin 12b. After that, the urethane undiluted solution is filled along the center line in the width direction on the metal outer skin 12b in the lower mold. At this time, it is preferable that the portion filled with the urethane undiluted solution is separated from the first side B1 and the second side B2 of the metal skin 12b. By doing so, when the upper mold is closed after that, the urethane undiluted solution expands and hardens until it reaches the edge of the metal outer skin 12b from the filling location, so that the urethane undiluted solution flows toward the coating material 12d. It becomes difficult to turn around. The method of forming the heat insulating panel 12 is not limited to the above-described method. For example, a method of forming the heat insulating material 12a and then adhering the metal skin 12b to the heat insulating material 12a may be used.

The fixing disk 13 includes a substantially circular steel plate and a resin layer provided on the upper surface of the steel plate. The resin layer can be made of the same material as the covering material 12d. A plurality of fixing discs 13 are used, and these fixing discs 13 are arranged on the upper surface of the insulating panel 12 with a space therebetween. The arrangement position of the fixing disk 13 is set so that the convex portion of the synthetic slab deck plate 10 is positioned directly below the fixing disk 13 .

The fixing screw 14 can be composed of, for example, a self-drilling screw or the like, and is screwed into the convex portion of the synthetic slab deck plate 10 through the fixing disk 13, the heat insulating panel 12, and the heat insulating material 11 from above. . By screwing the fixing screw 14 into the convex portion of the synthetic slab deck plate 10, the fixing disk 13 is pressed against the heat insulation panel 12, and the heat insulation panel 12 pressed with the fixing disk 13 holds the heat insulating material 11 for the synthetic slab. It comes to press against the convex portion of the deck plate 10 .

The waterproof sheet 15 is composed of a synthetic resin sheet laid on the upper surface of the heat insulating panel 12 . The waterproof sheet 15 can be made of the same material as the covering material 12d, that is, soft vinyl chloride resin or polyolefin resin. The waterproof sheet 15, the covering material 12d, and the resin layer of the fixing disk 13 are preferably made of the same material. A plurality of waterproof sheets 15 can be used, and as shown in FIG. 1 and FIG. Do not allow water to seep underneath. Moreover, the waterproof sheet 15 covers the fixing disk 13 and the fixing screw 14 . The waterproof sheet 15 and the resin layer of the fixing disk 13 are joined.

The lower surface of the waterproof sheet 15 is bonded to the covering material 12d of the metal skin 12b, and the lower surface of the waterproof sheet 15 and the covering material 12d of the metal skin 12b may be partially bonded or may be bonded entirely. You may

The bonding method between the waterproof sheets 15, the bonding method between the waterproof sheet 15 and the covering material 12d, and the bonding method between the waterproof sheet 15 and the resin layer of the fixing disk 13 are heat fusion, welding using a solvent, or the like. Various welding methods and adhesion methods using conventionally used adhesives can be used.

(Construction method)
Next, a construction method for the waterproof structure configured as described above will be described. This embodiment is a waterproof structure for new construction. First, a plurality of heat insulating materials 11 are arranged side by side on a synthetic slab deck plate 10 so as to be adjacent to each other.

After that, a plurality of heat insulating panels 12 are arranged side by side on the heat insulating material 11 so as to be adjacent to each other (see FIG. 4). At this time, the first side A1 of the heat insulating material 12a of the heat insulating panel 12 is arranged so as to be in contact with the third side A3 of the heat insulating material 12a of the adjacent heat insulating panel 12. As shown in FIG. Also, the second side A2 of the heat insulating material 12a of the heat insulating panel 12 is arranged so as to contact the fourth side A4 of the heat insulating material 12a of the adjacent heat insulating panel 12. As shown in FIG. That is, the plurality of heat insulating panels 12 are arranged side by side so that the portion of the heat insulating material 12a extending from the edge of the metal skin 12b contacts the third side B3 or the fourth side B4 of the metal skin 12b. When the heat insulating panels 12 are arranged side by side, the upper surface 12f of the portion of the heat insulating material 12a that protrudes from the edge of the metal skin 12b and the upper surface of the metal skin 12b are positioned on the same plane, so that they are substantially planar. becomes (see FIG. 5).

Incidentally, as in the modified example shown in FIG. 6, the end portion of the heat insulating panel 12 may be formed with a convex portion 12g or a concave portion 12e to be fitted to another adjacent heat insulating panel 12. As shown in FIG. By fitting the convex portion 12g of one heat insulating panel 12 to the concave portion 12e of the other heat insulating panel 12, the heat insulating panels 12 can be integrated.

After the insulating panels 12 are arranged side by side, a plurality of fixing discs 13 are placed directly above the convex portion of the synthetic slab deck plate 10 (see FIG. 2). After arranging the fixing disk 13, the fixing screw 14 is passed through the fixing disk 13 from above the fixing disk 13, and is also passed through the heat insulating panel 12 and the heat insulating material 11, so that the composite slab deck plate 10 is fixed. Screw into the convex part. As a result, a plurality of portions of the heat insulating panel 12 and the heat insulating material 11 are fastened and fixed to the synthetic slab deck plate 10 . Alternatively, a plurality of portions of the heat insulating panel 12 may be adhered and fixed to the composite slab deck plate 10 with an adhesive.

After screwing the fixing screws 14, a plurality of waterproof sheets 15 are laid on the upper surface of the heat insulation panel 12. - 特許庁Then, the overlapping waterproof sheets 15 are joined, the waterproof sheet 15 and the covering material 12d are joined, and the waterproof sheet 15 and the resin layer of the fixing disk 13 are joined.

(Action and effect of the embodiment)
As described above, according to this embodiment, a plurality of heat insulating panels 12 are arranged side by side on the composite slab deck plate 10 so as to be adjacent to each other, and each heat insulating panel 12 is provided at a plurality of locations on the composite slab deck. After fastening and fixing to the plate 10, the waterproof sheet 15 is laid and joined to the metal skin 12b of the heat insulating panel 12, thereby obtaining a waterproof structure for a pitched roof.

For example, if a strong wind blows, a force acts on the waterproof sheet 15 to make it float. Since the load is transmitted to the portions (the portions fastened by the fixing screws 14), the load is distributed and acts on the plurality of fastened portions. Therefore, the load applied to each fastening portion, particularly the load in the horizontal direction, is reduced, so the waterproof performance can be maintained for a long period of time.

In addition, since the heat insulating panel 12 exposes the heat insulating material 12a from the bottom surface and does not have the metal skin 12b on the bottom surface, the number of members is reduced and the structure is simple compared to the case where the metal skins are provided on the top and bottom. , the cost can be reduced.

Further, the lower surface of the heat insulating material 12 a directly contacts the upper surface of the heat insulating material 11 , so that the heat insulating material 12 a deforms along the upper surface of the heat insulating material 11 and follows the shape of the upper surface of the heat insulating material 11 . Therefore, even if there are some irregularities or steps on the upper surface of the heat insulating material 11 , they are less likely to appear on the upper surface of the heat insulating panel 12 .

Furthermore, since two continuous sides of the heat insulating material 12a protrude from the edge of the metal skin 12b, the metal skins 12b of the heat insulating panels 12 adjacent in two directions in a state of being arranged side by side are prevented from interfering with each other due to, for example, thermal expansion. can be

(Embodiment 2)
7 to 9 show a roof 1 according to Embodiment 2 of the present invention. Embodiment 2 is a form applied when the roof 1 is repaired, and differs from Embodiment 1 in that it has a structure for fixing the existing heat insulating material 11 to the synthetic slab deck plate 10. . In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

Insulation 11 is existing insulation that is fixed to the composite slab deck plate 10 prior to retrofitting. The roof 1 of Embodiment 2 includes fixing disks 17 and fixing screws 18 for fixing the heat insulating material 11 . The fixing disc 17 and the fixing screw 18 are configured similarly to the fixing disc 13 and the fixing screw 14 for fixing the heat insulating panel 12 . That is, the fixing screw 18 passes through the fixing disk 17 and then through the heat insulating material 11 and is screwed into the convex portion of the synthetic slab deck plate 10 .

Moreover, in the second embodiment, the existing waterproof sheet 19 is laid on the heat insulating material 11 . The existing waterproof sheet 19 and the fixing disc 17 are joined together. Therefore, in the case of the second embodiment, the existing waterproof sheet 19 and heat insulating material 11 are left as they are, and a waterproof structure similar to that of the first embodiment is provided thereon. Also in the case of the second embodiment, it is possible to obtain the same effects as those of the first embodiment.

(Embodiment 3)
10 and 11 show a roof 1 according to Embodiment 3 of the present invention. Embodiment 3 is different from Embodiment 1 in that it is applied when repairing a roof 1 composed of an existing folded plate (waterproof substrate) 20 . In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

The heat insulation panel 12 is arranged side by side on the folded plate 20 . The fixing screw 14 passes through the fixing disk 13 and then through the heat insulating panel 12 and is screwed into the convex portion of the folded plate 20 . Also in the case of the third embodiment, the same effects as those of the first embodiment can be obtained.

(Embodiment 4)
FIG. 12 shows a roof 1 according to Embodiment 4 of the present invention. Embodiment 4 differs from Embodiment 1 in that it has a structure for fixing the existing heat insulating material 11 to the purlin (waterproof foundation) 22 . In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

The insulation 11 is the existing insulation 11 fixed to the purlin 22 before the renovation. The roof 1 of Embodiment 4 includes screws 23 for fixing heat insulating materials 11 and tapes 24 for closing gaps between adjacent heat insulating materials 11 . The screw 23 is fastened to the purlin 22 after passing through the heat insulating material 11 .

Moreover, in Embodiment 4, the existing waterproof sheet 25 is laid on the heat insulating material 11 . The existing waterproof sheet 25 and the heat insulating material 11 are joined together. Therefore, in the case of Embodiment 4, the existing waterproof sheet 25 and heat insulating material 11 are left as they are, and a waterproof structure similar to that of Embodiment 1 is provided thereon. In the case of the fourth embodiment as well, the same effects as those of the first embodiment can be obtained.

(Embodiment 5)
13 and 14 show a roof 1 according to Embodiment 5 of the present invention. Embodiment 5 differs from Embodiment 1 in that the heat insulating material 11 and the heat insulating panel 12 are fixed by adhesion. In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail. 13 and the like is an insulating aluminum tape that is attached so as to cover the gap between the adjacent heat insulating panels 12, 12. As shown in FIG.

In Embodiment 5, a plurality of portions of the heat insulating material 11 are adhered and fixed to the composite slab deck plate 10 with an adhesive without using fixing discs and fixing screws. An adhesive layer 30 made of adhesive is provided between the waterproof sheet 15 and the heat insulating panel 12, and the waterproof sheet 15 and the heat insulating panel 12 are adhered with the adhesive. Furthermore, an adhesive layer 31 made of adhesive is provided between the heat insulating material 11 and the heat insulating panel 12, and the heat insulating material 11 and the heat insulating panel 12 are adhered with the adhesive. Also in the case of the fifth embodiment, the same effects as those of the first embodiment can be obtained.

(Embodiment 6)
FIG. 15 shows a roof 1 according to Embodiment 6 of the invention. Embodiment 6 is a form applied when repairing the roof 1, and the waterproof sheet 15 is adhesively fixed. In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

In Embodiment 6, fixing discs 17 and fixing screws 18 are used to fix a plurality of portions of the heat insulating material 11 to the composite slab deck plate 10 . An adhesive layer 30 made of adhesive is provided between the waterproof sheet 15 and the heat insulating panel 12, and the waterproof sheet 15 and the heat insulating panel 12 are adhered with the adhesive. Further, an adhesive layer 33 made of adhesive is provided between the existing waterproof sheet 19 and the heat insulating panel 12, and the existing waterproof sheet 19 and the heat insulating panel 12 are adhered with the adhesive. Also in the case of the sixth embodiment, the same effects as those of the first embodiment can be obtained.

(Embodiment 7)
FIG. 16 shows a roof 1 according to Embodiment 7 of the present invention. The seventh embodiment, like the third embodiment, is a form applied when repairing the roof 1 composed of the existing folded plate (waterproof substrate) 20 . Further, Embodiment 7 differs from Embodiment 3 in that the heat insulating panel 12 is adhesively fixed. Hereinafter, the same reference numerals are given to the same parts as in the third embodiment, and the description thereof will be omitted, and the parts different from the third embodiment will be described in detail.

In Embodiment 7, a plurality of portions of the heat insulating panel 12 are adhered and fixed to the folded plate (waterproof substrate) 20 with an adhesive without using fixing discs and fixing screws. An adhesive layer 30 made of adhesive is provided between the waterproof sheet 15 and the heat insulating panel 12, and the waterproof sheet 15 and the heat insulating panel 12 are adhered with the adhesive. In the case of the seventh embodiment as well, the same effects as those of the first embodiment can be obtained.

(Embodiment 8)
FIG. 17 shows a roof 1 according to Embodiment 8 of the present invention. The eighth embodiment differs from the first embodiment in that it has a structure for fixing the existing heat insulating material 11 to the purlin (waterproof base) 22 as in the fourth embodiment. In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

In Embodiment 8, no fixing disk and fixing screw are used. An adhesive layer 30 made of adhesive is provided between the waterproof sheet 15 and the heat insulating panel 12, and the waterproof sheet 15 and the heat insulating panel 12 are adhered with the adhesive. Further, an adhesive layer 34 made of adhesive is provided between the existing waterproof sheet 25 and the heat insulating panel 12, and the existing waterproof sheet 25 and the heat insulating panel 12 are adhered with the adhesive. Also in the case of the eighth embodiment, the same effects as those of the first embodiment can be obtained.

The above-described embodiments are merely examples in all respects and should not be construed in a restrictive manner. Furthermore, all modifications and changes within the equivalent range of claims are within the scope of the present invention.

INDUSTRIAL APPLICABILITY As described above, the waterproof structure according to the present invention can be applied to a roof having a structure in which the flat portion is slanted in one direction.

1 roof 10 deck plate (waterproof base)
11 lower layer heat insulating material 12 heat insulating panel 12a heat insulating material 12b metal skin 12c base metal plate 12d coating material 15 waterproof sheet 20 folded plate (waterproof substrate)
22 Purlin (waterproof base)

Claims (5)

In the waterproof structure of the pitched roof with the flat part sloping in one direction,
a plurality of heat insulating panels arranged adjacent to each other on the waterproof substrate of the sloped roof, and fixed or adhesively fixed at a plurality of locations to the waterproof substrate;
A synthetic resin waterproof sheet laid on the upper surface of the heat insulating panel,
The heat insulating panel includes a rectangular heat insulating material, a base metal plate adhered to the top surface of the heat insulating material, and a metal skin having a resin coating material covering the top surface of the base metal plate. In addition, the lower surface of the heat insulating panel is configured so that the heat insulating material is exposed,
The lower surface of the waterproof sheet is joined to the metal skin ,
At least one side of the heat insulating material is formed to protrude from the edge of the metal skin,
A waterproof structure, wherein an upper surface of a portion of the heat insulating material of the heat insulating panel that protrudes from an edge of the metal skin and an upper surface of the metal skin are formed to be on the same plane . In the waterproof structure according to claim 1 ,
The waterproof structure, wherein the two continuous sides of the heat insulating material are formed to protrude from the edge of the metal skin. In the waterproof structure according to claim 1 or 2 ,
A waterproof structure, wherein a concave portion or a convex portion to be fitted to an adjacent heat insulating panel is formed at an end portion of the heat insulating panel. In the waterproof structure according to any one of claims 1 to 3 ,
The waterproof structure, wherein the heat insulating material of the heat insulating panel is made of isocyanurate foam or foamed polyethylene. In the waterproof structure according to any one of claims 1 to 4 ,
A waterproof structure, wherein the waterproof sheet and the covering material are made of a soft vinyl chloride resin or a polyolefin resin.

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