JP6506127B2 - Roof repair structure and roof repair method - Google Patents

Description

  The present invention relates to a roof repair structure obtained by partially repairing a roof eave, and a roof repair method.

  Japanese Utility Model Application Laid-Open No. 6-56264 describes a repair structure and a repair method relating to the repair of an existing slate roof. In this repair structure and repair method, a metal roof plate of a folded plate structure is placed on a slate roof, and the roof plate is fastened to a purlin by fasteners such as a sword tip bolt and a nut to form a renovated roof. ing. The base of the eaves is attached to the existing eaves of the slate roof. The base metal is fixed to the upper surface of the slate roof and extends in a predetermined direction, the inclined portion bent upward from the proximal end, the flat portion extending in the predetermined direction from the upper end of the inclined portion, and the flat portion And a leg hanging from the tip.

  In addition, this repair structure includes an eaves-front door and an eaves-end drainer. The eaves-front door has a trapezoidal shape corresponding to one unevenness of the slate roof. At the lower end of the front door of the eaves, a locking piece for locking the eaves tip drainer is provided. In the eaves for draining, a bent part locked to the locking piece, a surface extended from the bent part in a predetermined direction and fixed to the base metal, and a drooping at the lower part hanging from the tip of this surface And a cosmetic surface to be provided. An eaves-end cosmetic frame that protrudes further to the tip side than the cosmetic surface is provided above the drainage.

Japanese Utility Model Application Publication No. 6-56264

  In the above-described repair structure, an eaves-end cosmetic frame is provided above the drainage, and protrudes further to the tip side than the cosmetic surface. Therefore, the tip of the cosmetic surface and the tip of the eaves-end cosmetic frame are not aligned. Thus, when the tips of the respective members in the eaves are not aligned, the flow velocity of water in the eaves decreases, and the surface tension makes it easy for the water to move from the tips to the back side of the eaves. Water flowing around the back of the eaves can cause problems entering the interior of the building.

  An object of the present invention is to provide a roof repair structure and a roof repair method capable of suppressing the flow of water to the back of an eave.

The roof repair structure according to the present invention is a repair structure obtained by repairing an existing roof eave, and the end surface under the water located at the eaves tip is aligned, and the eaves tip and the eaves back side And are subjected to smoothing processing.

  In this roof repair structure, the tips of the eaves are aligned, and the edges of the eaves and the back of the eaves are smoothed. Therefore, the water flowing from the front side of the eaves tends to flow smoothly downward when reaching the tip of the smoothed eaves, so that it is possible to suppress the water from flowing to the back side of the eaves. In addition, even if water goes around to the back side of the eaves, the surface tension of the water to the back side of the eaves can be reduced by the smoothing processing being performed on the back side of the eaves, so the water can be made quickly. It can be dropped. Since the water can be drained quickly in this manner, it is possible to prevent water that has run around the eaves from entering the interior of the building.

  In addition, even if the plate member is provided with a plate member applied to the back side of the eaves and the plate member is applied to the back side of the eaves in a state where one end of the plate member and the tip of the eaves are aligned, smoothing processing is performed. Good. In this case, by applying a plate member to the back side of the eaves, the eaves can be reinforced as well as closing cracks, cracks, holes or the like generated in the part of the eaves of the roof. Therefore, it is possible to avoid the situation where water infiltrates from a crack or the like generated in the eaves part. In addition, the plate member is applied to the back of the eaves in a state where one end thereof and the end of the eaves are aligned, whereby the smoothing process is performed on the tips of the eaves and the back of the eaves. Therefore, this board member can reinforce the eaves and make it difficult for water to wrap around the eaves from the tip of the eaves to the back of the eaves.

  In addition, at the tip of the eaves, a downwardly bent tailing may be formed, and the plate member may be applied to the back side of the tailing. Since the speed of the water flowing to the front side of the eaves can be increased by forming the trailing edge in which the eaves tip is bent downward in this way, it is possible to perform drainage at the eaves tip better. Therefore, it is possible to more reliably prevent water from flowing from the tip of the eave to the back of the eave.

  In addition, a surface door attached to an eave may be provided, and processing may be performed to extend the distance from the tip of the eave to the surface door. Thus, when extending the distance from the tip of the eave to the door, it is possible to lengthen the smoothed area on the back of the eave. Therefore, even if water goes to the back of the eaves, it is difficult for the water to reach the door, so it is possible to more reliably prevent the water from entering the interior of the building.

The roof repair method according to the present invention is a repair method for repairing an existing roof eave, in which the end surface under the water located at the tip of the eave is aligned, and smoothing is performed on the tip of the eave and the back of the eave. Apply processing

  In this roof repair method, the tips of the eaves are aligned, and the edges of the eaves and the back of the eaves are smoothed. Therefore, as with the repair structure described above, the edge of the eaves and the back of the eaves are smoothed, so the water flowing from the front side of the eaves reaches the edge of the eaves that has been smoothed It is easy to flow smoothly downward. Therefore, it can control that water gets around to the back side of an eaves. In addition, even if water goes around to the back side of the eaves, the surface tension of the water to the back side of the eaves can be reduced by the smoothing processing being performed on the back side of the eaves, so the water can be made quickly. It can be dropped. Since the water can be drained quickly in this manner, it is possible to prevent water that has run around the eaves from entering the interior of the building.

  According to the present invention, it is possible to suppress the flow of water to the back side of the eaves.

It is a perspective view showing the repair structure of the roof concerning an embodiment. It is sectional drawing which shows the repair structure of FIG. It is sectional drawing which shows the periphery of the tailing in the repair structure of FIG. It is sectional drawing which shows the flow of the water in the repair structure of FIG. It is sectional drawing which shows the flow of the water in the conventional repair structure. It is a figure which shows the example of the process which extends the distance from the tip of an eaves to the door of a roof.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference symbols, without redundant description.

  As shown in FIG. 1 and FIG. 2, the repair structure 1 according to the present embodiment is a structure obtained by partially repairing the eaves 11 in the existing roof deck (roof) 10. For example, the eaves 11 before repair have holes, cuts or cracks due to aging, etc. The repair structure 1 is obtained by repairing such eaves 11. Be In the case where the eaves 11 have the above-described holes or the like, rainwater or the like may infiltrate from the holes or the like, which may cause a leak.

  The roof deck 10 is a corrugated steel plate that alternately repeats a mountain-shaped portion 10a and a valley-shaped portion 10b having a trapezoidal shape, and the mountain-shaped portion 10a and the valley-shaped portion 10b are continuous via the inclined portions 10c and 10d. The roof deck 10 is, for example, a galvary steel plate. In the example of FIG. 1, the roof deck 10 in which four peak portions 10a and three valley portions 10b are alternately arranged is shown. In this example, a mountain portion 10 a located at one end of one roof deck 10 and a mountain portion 10 a located at the other end of the adjacent roof deck 10 are overlapped, and the overlapped portion is a tension bolt 12. By being fixed, each roof deck 10 is connected (it is a lap type fold board).

  Water such as rainwater is collected in the valley portion 10 b of the roof deck 10 and flows on the valley portion 10 b toward the eaves 11. The water gradient of the roof deck 10 is, for example, 1/50. In the repair structure 1, the eaves 11 located on the tip end side of the valley portion 10 b of the roof deck 10 are repaired, and the eaves 11 are subjected to a smoothing process.

  Here, "smooth" in the present specification indicates a flat or gently curved state, and a smooth surface having no protruding portion, recessed portion or rough portion to the extent that reduces the velocity of water. It shows. In addition, "smoothing treatment" indicates that the portion is removed or covered or the like with respect to the protruding portion, the recessed portion or the rough portion as described above to make the portion smooth. . Below, an example of the smoothing process performed with respect to the repair structure 1 is demonstrated.

  The repair structure 1 includes a plate member 20 applied to the back side of the eaves 11. The plate member 20 has a trapezoidal shape along the valley portion 10 b of the roof deck 10. The plate member 20 is applied to the outside and the back of the valley portion 10 b. The thickness of the plate member 20 is preferably thin, for example, 0.4 to 0.6 mm. When the board member 20 is thin, it is possible to improve the fit to the roof deck 10 and to improve the adhesion to the roof deck 10.

  The plate member 20 is formed, for example, by bending a flat plate made of iron. The plate member 20 is applied from below to a bottom part 21 applied to the valley part 10b from below, an inclined part 22 applied to the one inclined part 10c of the roof deck 10 from below, and the other inclined part 10d of the roof deck 10 And an inclined portion 23. The bottom 21 contacts the outer surface of the valley 10 b, the slope 22 contacts the outer surface of the slope 10 c, and the slope 23 contacts the outer surface of the slope 10 d.

  The inclined portions 10 c and 10 d of the roof deck 10 and the inclined portions 22 and 23 of the plate member 20 are fixed by screws 24 and 25 inserted from the front side of the roof deck 10. That is, the inclined portions 10 c and 10 d and the inclined portions 22 and 23 are fixed, for example, by driving in the screws 24 and 25 having a pointed tip. Here, the tip (eave end) of the roof deck 10 on the water side and the end face of the plate member 20 are aligned.

  Here, in the present specification, “the tips of the eaves are aligned” means that, as described above, another member is attached to the tip of the existing eaves to align the tips of the existing eaves with the end faces of the members. Not only that, by coating, painting or removing the material on the tip of the existing eave, the tip of the existing eave is aligned (for example, as shown in FIG. ) Is also included. In the present embodiment, the tip (one end) 21a of the bottom 21 and the tip 10e of the valley 10b are aligned, the tip 22a of the slope 22 is aligned with the tip 10f of the slope 10c, and the tip 23a of the slope 23 and It is aligned with the tip 10g of the inclined portion 10d.

  As shown in FIG. 3, the bottom 21 of the plate member 20 is attached to the back surface of the valley 10 b by an adhesive 26. The bonding member 26 is, for example, a double-sided tape, and the material of the bonding member 26 is butyl rubber. However, the material of the bonding member 26 does not have to be butyl rubber, and another material may be used as long as it is a material having water resistance and water repellency and capable of bonding iron plates. The end 26 a of the bonding member 26 is aligned with the end 10 e of the valley portion 10 b and the end 21 a of the bottom portion 21.

  As shown in FIGS. 1 and 3, the repair structure 1 is provided with a tail 30. The trailing edge 30 is formed by bending the tip 10 e side (underwater side) downward with respect to the root side (water upper side) of the eaves 11. The trailing edge 30 is formed, for example, by attaching the plate member 20 to the back side of the roof deck 10 and then bending it with pliers or a hammer. It is preferable that the angle θ between the upper surface of the valley portion 10 b and the upper surface of the trailing edge 30 be as large as possible without causing a break in the roof deck 10. Specifically, the angle θ is preferably about 15 °. By setting the angle θ to such a value, drainage characteristics in the repair structure 1 are enhanced. Moreover, the length (length in the flow direction of water) of the trailing edge 30 is, for example, 15 mm.

  In addition, angle (theta) and length of the trailing edge 30 can be suitably changed, without being limited to the above. In addition, in FIG. 3, the bottom 21 of the plate member 20 is provided just on the back surface of the trailing edge 30, and the length of the trailing edge 30 is the same as the length of the bottom 21. However, the length of the bottom 21 may be longer than the length of the tail 30. In this case, the plate member 20 extends on the water side of the trailing edge 30, but the extended portion is bent along the bending of the trailing edge 30.

  Next, an example of the repair method of the roof deck 10 will be described. This repair method is a method of partially repairing the eaves 11 of the roof deck 10. First, the plate member 20 is prepared. Next, the tip 10e of the valley 10b and the tip 21a of the bottom 21 are aligned, the tip 10f of the slope 10c and the tip 22a of the slope 22 are aligned, and the tip 10g of the slope 10d and the tip 23a of the slope 23 The plate member 20 is pasted to the back side of the eaves 11 by the bonding member 26 in a state where the

  Thereafter, the plate members 20 are fixed to the back of the roof deck 10 by fixing the inclined portions 22 and 23 and the inclined portions 10c and 10d with the screws 24 and 25, respectively. By attaching the plate member 20 to the roof deck 10 in this manner, the tip of the roof deck 10 and the tip of the plate member 20 are aligned. Then, the plate member 20 is attached to the eaves 11, so that the tips (tips 10e, 10f, 10g and tips 21a, 22a, 23a) of the eaves 11 are smoothed, and the valleys 10b of the roof deck 10 The flat bottom portion 21 is applied to the back side of the surface 11, and the back side 21b of the eaves 11 is also subjected to a smoothing treatment. After the smoothing process is performed as described above, the repair structure 1 is completed by forming the tail drop 30 with pliers or a gold scissors or the like.

  Next, the effect in the repair method of the repair structure 1 and the roof deck 10 is demonstrated. First, in the repair structure 1 of the roof deck 10, as shown in FIGS. 3 and 4, the tips 10e, 26a, 21a of the eaves 11 are aligned, and the tips 10e, 26a, 21a of the eaves 11 and the back side of the eaves 11 A smoothing process is applied to 21b. As described above, in the repair structure 1, since the back side of the existing roof deck 10 is treated and repaired, it is possible to avoid the occurrence of a step on the front side of the roof deck 10, and the water W It is possible to avoid the situation of accumulation.

  Therefore, since the speed fall of the water W which flowed from the front side of the roof deck 10 can be suppressed, it is suppressed that the water W gets around to the back side 21b of the eaves 11 from tip 10e, 26a, 21a of the eaves 11. it can. Further, in the repair structure 1, smoothing processing is performed on the tips 10 e, 26 a and 21 a of the eaves 11 and the back side 21 b of the eaves 11. Therefore, the water W flowing from the front side of the eaves 11 can easily flow smoothly downward when reaching the tips 10e, 26a, 21a of the smoothed eaves 11.

  Moreover, even if water W goes around on the back side 21b of the eaves 11, the surface tension of the water W to the back side 21b of the eaves 11 is reduced by the smoothing process being performed on the back side 21b of the eaves 11 The water W can be dropped quickly. Since the water can be drained quickly in this manner, it is possible to avoid the situation in which the water W having entered the back side 21b of the eaves 11 enters the inside of the building.

  On the other hand, in the case where the tip of the eaves is not subjected to the flattening process as in the prior art, the water W tends to go around the back side of the eaves as shown in, for example, FIG. 5 (a) and FIG. Specifically, in the eaves 101 shown in FIG. 5A, the plate member 103 protrudes more toward the tip than the existing roof deck 102. In this case, the water W easily accumulates in the corner C1 formed by the tip of the roof deck 102 and the surface of the plate member 103, and the velocity of the water W decreases at the corner C1. Therefore, the surface tension applied to the water W becomes relatively large with respect to the gravity applied to the water W, so the water W can easily get around the back side of the plate member 103 at the tip of the plate member 103. As described above, the water W which has come around to the back side of the plate member 103 does not drop quickly, but travels to the root side of the eaves 101, which may cause a leak of water.

  Further, in the eaves 111 shown in FIG. 5 (b), the existing roof deck 112 protrudes to the tip side more than the plate member 113. In this case, the water W easily accumulates in the corner C2 formed by the back surface of the roof deck 112 and the tip of the plate member 113. Therefore, also in this case, the surface tension applied to the water W is relatively large with respect to the gravity applied to the water W, so the water W can easily wrap around the back side of the plate member 113. Therefore, as in the case shown in FIG. 5A, the water W may progress to the base side of the eaves 111 and cause a leak.

  Further, in the repair structure 1 of the present embodiment, as shown in FIG. 1, the plate member 20 applied to the back side of the eaves 11 is provided, and the tips 21 a, 22 a, 23 a of the plate member 20 and the tip 10 e of the roof deck 10 , 10f and 10g are aligned, and the plate member 20 is applied to the back side of the eaves 11, whereby the smoothing process is performed. As described above, by applying the plate member 20 to the back side of the eaves 11, the eaves 11 can be reinforced while being able to close a crack, a crack, a hole or the like generated in the eaves 11 of the roof deck 10. Accordingly, it is possible to prevent water from invading from a crack or the like generated in the portion of the eaves 11, and it is possible to make it difficult for water to go around from the tip of the eaves 11 to the back side of the eaves 11.

  Further, at the tip of the eaves 11, a trailing edge 30 whose tip side is bent downward with respect to the root side of the eaves 11 is formed, and the plate member 20 is applied to the back side of the trailing edge 30. Since the speed of the water flowing to the front side of the eaves 11 can be increased by forming the trailing edge 30 in which the tips of the eaves 11 are bent downward as described above, the drainage at the ends of the eaves 11 can be performed better. Can. Therefore, it is possible to more reliably prevent the water from flowing from the tip of the eave 11 to the back side of the eave 11.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It deform | transforms in the range which does not change the summary described in each claim, or it applies to another thing It may be That is, the present invention can be variously modified without changing the scope of each claim.

  For example, as shown in FIG. 6, a plane door 120 having a bending plate 121 may be fixed by a screw 122 at the eaves end of the existing roof deck 31. When such a plane door 120 is fixed, the distance from the tip 41a of the eaves 41 to the plane door 120 of the roof deck 31 is short, so that water can not be drained quickly when water rolls on the back side of the eaves 41 there were.

  However, for example, by replacing the face door 120 as described above with another face door 50, the position of the face door 50 is separated from the tip 41 a of the eaves 41, and the face doors 50 of the roof deck 31 from the tip 41 a of the eaves 41. A process of extending the distance to the end may be performed. As described above, when the distance from the tip 41 a of the eaves 41 to the plane door 50 is extended, the smoothed area on the back side of the eaves 41 can be made longer. Therefore, even if water goes to the back side of the eaves 41, it can be drained quickly, and it is possible to more reliably prevent the water from entering the interior of the building. In addition, the measure to which the distance to the above-mentioned plane door 50 is extended can also be performed with respect to the roof deck 10 in the above-mentioned embodiment, and can also be performed with respect to roofs other than the roof deck 10.

  In addition, there are various modes as the smoothing process applied to the top of the eaves and the back of the eaves. For example, the heat insulating material comprised with a polyethylene foam etc. may be exposed to the back side of the eaves in the existing roof deck. When such a heat insulating material is exposed on the back side of the eaves, the capillary action that works between the heat insulating material and the water makes the water draw-in strong. Then, the smoothing process may be performed by removing the heat insulating material exposed to the back side of the eaves to make the back side of the eaves a smooth surface.

  Furthermore, the edge of the eaves and the back of the eaves may be smoothed off, or the eaves and the back of the eaves may be coated with a urethane resin or the like, or the paint may be applied to the eaves. Smoothing may be performed with the tip and the back of the eaves as smooth surfaces.

  In addition, there are various modes as processing for aligning the tip of the eave. For example, if the tip of the existing eave is missing, etc., and another member is pasted to the existing eave, if the tip of the eave does not align, then after attaching another member to the existing eave, the tip is The tips of the eaves may be aligned by painting or the like. Furthermore, the tip of the eave may be aligned by pasting another member after applying a coating or the like to the tip of the existing eave to eliminate a missing part or the like. Thus, "the tips of the eaves are aligned" includes aligning the tips of the eaves by processing the tips before and after bonding another member to the existing eaves.

  Moreover, the above-mentioned embodiment demonstrated the repair structure 1 obtained by repairing the eaves 11 of the roof deck 10 (laminated folding plate). However, the present invention is also applicable to folded sheet roofs other than the roof deck 10 (e.g., folded-type folded sheet roofs), and is also applicable to roofs other than folded sheet.

DESCRIPTION OF SYMBOLS 1 ... Repair structure, 10 ... Roof deck (roof), 10a ... Mountain part, 10b ... Valley part, 10c, 10d ... Slope part, 10e, 10f, 10g ... Tip, 11 ... Eaves, 12 ... Tight bolt, 20 ... Board Members 21, bottom portions 21, 21a, 22a, 23a, 26a, tip ends 22, 22, inclined portions 24, 24: screws 24, 26: adhesive members, 30: tailing, 31: roof deck, 41: eaves, 41a: Tip, 50 ... flat door, W ... water, θ ... angle.

Claims (5)

A repair structure obtained by repairing an existing roof eave,
The end face under the water located at the tip of the eave is aligned, and the tip of the eave and the back side of the eave are subjected to a smoothing treatment.
Roof repair structure. It has a plate member applied to the back of the eaves,
The smoothing process is performed by the plate member being applied to the back side of the eaves in a state where one end of the plate member and the tip of the eaves are aligned.
The roof repair structure according to claim 1. The tip of the eave is formed with a downwardly bent tail drop, and the plate member is applied to the back side of the tail drop,
The roof repair structure according to claim 2. Equipped with a flat door attached to the eaves,
Processing is performed to extend the distance from the tip of the eave to the face door,
The roof repair structure according to any one of claims 1 to 3. A repair method for repairing an existing roof eave,
While aligning the end face under the water located at the tip of the eaves, the edge of the eaves and the back side of the eaves are subjected to a smoothing treatment.
How to repair the roof.

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