Reform cover material, reform building structure, and construction method of reform cover material

Abstract

To provide a roof reform cover material, a reform ridge structure and a construction method of the reform cover material, which do not generate a reverse inclination and can obtain an appropriate throating slope regardless of a roof environment including a roof pitch, a kind or the like of reform roof material when conducting a lap roofing reform.SOLUTION: A reform cover material 100 provided at an existing ridge 80 of a roof when conducting a lap roofing reform in order to solve the problem, comprises: a ridge cover member 10 covering a circumference of the existing ridge 80; and an extension cover material 20 connected to the ridge cover member 10 and extending toward an eaves side substantially parallel to the roof. The ridge cover member 10 has: a ridge cover 11; and a throating material 12 bending and extending from the ridge cover 11 to the eaves side. In the ridge cover member 10 and the extension cover material 20, the extension cover material 20 and the throating material 12 are overlapped and connected so as to arrange the extension cover material 20 at a lower side and a length of an overlapping portion can be adjusted.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a reform cover material used for a ridge, a reform ridge structure, and a construction method of a reform cover material in a roof overlay reform.

Background Art

[0002] Conventionally, in a roof overlay reform, after reform roof materials 50 are successively laid from the eaves side up to near the ridge, a ridge cover material 10 is attached to the ridge. However, as shown in FIG. 1, when a distance L0 equal to or more than a certain value occurs from the reform roof material 52 located at the uppermost stage to the ridge and the ridge cover material 10 cannot reach the reform roof material 52, as shown in FIG. 2, a reform roof material 51 of a small size corresponding to the distance L0 equal to or more than a certain value is arranged, and the ridge cover material 10 for the ridge is arranged on the reform roof material 51 of the small size.

[0003] Then, since one end portion on the eaves side of the ridge cover material 10 is received at a high position of the roof, the tip of the ridge cover material 10 faces upward, and an appropriate water gradient cannot be obtained (reverse gradient), and rainwater cannot flow smoothly. When rainwater does not flow, water flows in the direction of the arrow, and a water pool D is formed at the bent portion of the ridge cover material 10, and there is a possibility that problems such as early corrosion and water leakage of the steel plate occur at the stagnant portion due to the retention of water.

[0004] Further, even when a distance L0 equal to or more than a certain value does not occur from the reform roof material 50 to the ridge, a reverse gradient may occur due to various roof environments such as the roof gradient θ, the type of the reform roof material 50, the height of the reform roof material 50, the allocation position of the reform roof material 50, or the dormer window 70, etc., and an appropriate water gradient may not be obtained.

[0005] In addition, since the roof environment varies for each site, it is difficult to separately prepare a reform roof material 50 that does not cause another reverse gradient or to adjust the allocation position, etc. each time.

Prior Art Documents

Patent Documents

[0006] Patent Document 1 Showa 60-138169 Summary of the Invention Problems to be Solved by the Invention

[0007] Therefore, in Patent Document 1, in order to prevent an inverted gradient from occurring, a plurality of truss units for raising are attached in parallel at predetermined intervals on an existing roof, and then a roof structural member is provided on these truss units to repair the roof, so that an appropriate water gradient can be obtained.

[0008] However, in the roof repair method described in Patent Document 1, since the roof gradient and the size of the roof vary depending on the house where the truss unit is installed, it is necessary to create different truss units for each house, which is costly and time-consuming for construction, and thus a problem.

[0009] Therefore, the present invention has been made in view of the above circumstances, and when performing a reroofing reform, it provides a roof reform cover material, a reform roof structure, and a construction method of the reform cover material that do not cause an inverted gradient regardless of the roof environment such as the roof gradient and the type of reform roof material, and can obtain an appropriate water drainage gradient. Means for Solving the Problems

[0010] The reform cover material according to the present invention is a reform cover material provided on an existing roof of a roof when performing a reroofing reform, and includes a building cover material that covers around the existing building, and an extension cover material that is connected to the building cover material and extends toward the eaves side substantially parallel to the roof. The building cover material has a building wrap and a drainage material that bends and extends from the building wrap toward the eaves side. The building cover material and the extension cover material are connected such that the extension cover material overlaps with the drainage material with the extension cover material on the lower side, and the length of the overlap of the overlapping portion is adjustable.

[0011] Furthermore, the reform cover material according to the present invention is such that the existing building has existing building timbers and existing building boards, and the existing building boards include existing building fixing boards fixed to the existing building timbers and existing water drainage members that bend and extend from the existing building fixing boards toward the eaves side. The reform cover material is further provided with a reform water drainage member that is connected so as to extend from the existing water drainage member toward the eaves side and is arranged so as to cover the overlapping margin.

[0012] Furthermore, the reform building structure according to the present invention is a reform structure of a building using the reform cover material according to claim 2, and includes a reform base timber arranged on the existing building fixing board, a building cover material arranged so as to cover the reform base timber and the existing building timbers, a fastening member for fixing the building cover material to the reform base timber from above the building cover material, a sliding door arranged on a reform roof material that is raised from the eaves side and is located at the uppermost stage, one end of the extension cover material is arranged on the sliding door, the other end on the building side of the reform water drainage member is connected to the existing water drainage member, and one end on the eaves side of the reform water drainage member is arranged on the reform roof material.

[0013] Furthermore, the method for constructing a reform of a building according to the present invention is a method for constructing a reform of a building using the reform cover material according to claim 2, and includes a step of arranging a reform base timber on the existing building fixing board, a step of arranging the building cover material so as to cover the reform base timber and the existing building timbers, a step of fixing the building cover material to the reform base timber with a fastening member from above the building cover material, and a step of overlapping and connecting the extension cover material and the water drainage member while adjusting the length of the overlapping margin.

Advantages of the Invention

[0014] According to the present invention, since the extension cover material and the drainage material are overlapped and connected, and the length of the overlapping portion is adjustable, the drainage material can be received at a lower position of the roof. Therefore, regardless of the roof environment such as the roof slope and the type of the reformed roof material, it is possible to obtain a reformed cover material that does not cause an inverted slope and obtains an appropriate drainage slope at any site. can be obtained.

[0015] Furthermore, by further providing a reformed drainage material disposed so as to cover the overlapping portion between the extension cover material and the drainage material, it is possible to obtain a reformed cover material having double waterproofing.

[0016] Moreover, by using the reformed cover material according to claim 2, regardless of the roof environment such as the roof slope and the type of the reformed roof material, it is possible to obtain a reformed building structure that does not cause an inverted slope and obtains an appropriate drainage slope at any site.

[0017] Moreover, by using the reformed cover material according to claim 2, regardless of the roof environment such as the roof slope and the type of the reformed roof material, it is possible to obtain a construction method for reforming a building that does not cause an inverted slope and obtains an appropriate drainage slope at any site.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0019] Hereinafter, with reference to the drawings, the reform cover materials 100 and 200, the reform building structure 300, and the construction method of the reform cover materials 100 and 200 according to the present invention will be described in detail. In this specification, the reform cover materials 100 and 200, the reform building structure 300, and the construction method of the reform cover materials 100 and 200 describe only the case of a single gable roof in a single flow, but can be similarly applied to the gable roof, hip roof, and square roof in both flows, and are not limited to the single gable roof.

[0020] The reform cover material 100 is used for the cover around the building when reforming from the existing roof surface to a new roof surface by the overlay method of forming a reform roof surface by laying the reform roof material 50 on the existing roof surface formed by the existing roof material 86.

[0021] [Reform Cover Material 100 and Reform Building Structure 300 According to the First Embodiment] The reform cover material 100 according to the first embodiment of the present invention is provided on the existing building 80 when performing an overlay reform of the roof, and as shown in FIG. 3, includes a building cover material 10 that covers the existing building 80, an extension cover material 20 connected to the eaves side of the building cover material 10, and a reform water drainage material 30. The building cover material 10 and the extension cover material 20 are formed of a rubarium steel plate, a stainless steel plate, a copper plate, or the like.

[0022] As shown in Fig. 1, the existing building 80 has an existing building timber 81 and existing building boards 82. The existing building timber 81 is located at the upper part of the wall W, and the existing building boards 82 are substantially Z-shaped in cross-section view. The existing building boards 82 have an existing building fixing board 83 fixed to the existing building timber 81 and an existing drip board 84 that bends and extends from the existing building fixing board 83 toward the eaves side.

[0023] As shown in Figs. 3 and 4, the renovated building structure 300 uses renovation cover materials 100 and 200 and has a renovation base timber 40 disposed on the existing building fixing board 83. The building cover material 10 is disposed so as to cover the renovation base timber 40 and the existing building timber 81, and a fastening member 41 that fixes the building cover material 10 to the renovation base timber 40 from above the building cover material 10. The building cover material 10 also has a face door 70 disposed on the renovation roof material 52 that is built up from the eaves side and located at the uppermost stage. One end 21 of the extension cover material 20 is disposed on the face door 70, the other end 32 on the building side of the renovation drip board 30 is connected to the existing drip board 84, and one end 31 on the eaves side of the renovation drip board 30 is disposed on the renovation roof material 50.

[0024] (Regarding the building cover material 10) The building cover material 10 has a building wrap 11 that wraps around the existing building 80 and a drip board 12 that bends and extends from the building wrap 11 toward the eaves side. As shown in Fig. 3, the existing building fixing board 83 is disposed on the existing building timber 81, and the renovation base timber 40 is disposed on the existing building fixing board 83. The building wrap 11 is disposed so as to cover the renovation base timber 40 and the existing building timber 81, and a fastening member 41 such as a screw passes through the building cover material 10 from above the building cover material 10 and fixes it to the renovation base timber 40.

[0025] (Regarding the extension cover material 20) The extension cover material 20 is connected to the drip board 12 of the building cover material 10 so as to overlap with the extension cover material 20 on the lower side. The overlapping portion of the extension cover material 20 and the drip board 12 allows adjustment of the overlapping length L2. By adjusting the overlapping length L2 of the overlapping portion with the drip board 12 using the extension cover material 20, the length that can be covered by the drip can be adjusted.

[0026] Therefore, as shown in FIG. 2, as a result of the short drainable range, even in a case where an inverted gradient occurs by receiving the drain material 12 of the ridge cover material 10 at a position higher than the bending portion 23 serving as a reference point, as shown in FIG. 3, by adjusting the overlapping length L2 of the overlapping portion, the length of the drain cover is extended, so that it is not necessary to use the small-sized reformed roofing material 51, and it is possible to construct with only one type of the normal-sized reformed roofing material 50. At the same time, one end portion 21 of the extension cover material 20 can be received at a low position of the roof, and an appropriate drain gradient can be obtained. In the present embodiment, the connection method is such that the drain material 12 and the extension cover material 20 are connected using the rivet caulking 71, but the connection method is not limited to this as long as they can be connected.

[0027] Further, near the center of the extension cover material 20, it has a bending portion 23 that bends toward the roof side and a return 24 to one end portion 21 on the eaves side. The bending portion 23 is bent in the roof direction. By having the bending portion 23, one end portion 21 of the extension cover material 20 can abut on the surface door 70 on the reformed roofing material 50, and by making the drain angle steep, it is easier to perform draining. And the return 24 has a role of preventing water from entering inside.

[0028] (Regarding the reform base wood 40) The reform base wood 40 is a base material for fixing the ridge cover material 10 to the existing building 80. As described above, the reform base wood 40 is arranged on the existing building wood 81 and is fabricated by on-site processing. It is preferable to use a reform base wood 40 having the same width as the existing building wood 81.

[0029] (Regarding the reform drain material 30) The reform drip edge material 30 is connected so as to extend below the eaves of the existing drip edge material 84, and is arranged so as to cover the overlapping margin of the overlapping part. The other end 32 on the gable side of the reform drip edge material 30 is connected to the existing drip edge material 84, and one end 31 on the eaves tip side of the reform drip edge material 30 is raised from the eaves tip side and arranged on the reform roof material 50 located at the uppermost stage. By using the reform drip edge material 30 in addition to the gable cover material 10, leakage from the overlapping part is prevented, and double waterproofing is achieved.

[0030] The length of the reform drip edge material 30 is set to be approximately the length obtained by subtracting the length of the existing drip edge material 84 from the total length of the drip edge material 12 and the extension cover material 20 so as to be able to cope even when there is almost no overlapping margin L2. In the present embodiment, the connection method between the other end 32 and the existing drip edge material 84 is connected using a rivet caulking 71, but the connection method is not limited to this as long as it can be connected.

[0031] [Reform cover material 200 according to the second embodiment] As shown in FIG. 4, the reform cover material 200 according to the second embodiment is provided with a sheet material 210 below the drip edge material 12 and the extension cover material 20 in addition to the reform cover material 100 according to the first embodiment, and the other configuration is the same as that of the reform cover material 100 according to the first embodiment.

[0032] The lower space S is a space formed by the drip edge material 12, the extension cover material 20, the sliding door 70, the reform roof material 50, and the existing roof material 85. As the extension cover material 20 is used, the space below the extension cover material 20 increases. Therefore, by providing a sheet material 210 having heat insulation, sound insulation, or waterproofing functions also below the extension cover material 20, a gable structure with enhanced functions such as heat insulation can be achieved, and the space S can be significantly utilized. The sheet material 210 is, for example, asphalt roofing in which asphalt is impregnated into a base material such as cardboard or felt. Also, if necessary, a sheet material 210 may be provided below the reform drip edge material 30.

[0033] [Regarding the construction method] For the construction method of the reform cover materials 100 and 200, the following steps (A) to (F) are carried out in sequence. (A) Step of successively laying up the reform roof materials 50 from the eaves side and arranging the sliding door 70 on the uppermost reform roof material 52; (B) Step of arranging the reform base wood 40 on the existing purlin 81; (C) Step of adjusting the overlapping length L2 of the overlapping part of the extension cover material 20 and the water drainage material 12 according to the roof environment before attaching the purlin cover material 10; (D) Step of connecting the extension cover material 20 and the water drainage material 12; (E) Step of attaching the purlin cover material 10 so as to cover the reform base wood 40 and the existing building 80; (F) Step of fixing the building wrap 11 and the reform base wood 40 with the fastening member 41.

[0034] [Regarding step (C)] As shown in FIG. 3, when there is a certain distance L1 from the uppermost reform roof material 52 to the existing water drainage material 84, by arranging one end 31 on the eaves side of the reform water drainage material 30 on the reform roof material 50 so that the extension cover material 20 and the water drainage material 12 do not have an inverted gradient, the overlapping length L2 is automatically determined. Also, the certain distance L1 is a distance that cannot reach the uppermost reform roof material 52 only with the existing water drainage material 84 and is less than the length of one reform roof material 50.

[0035] Also, as shown in FIG. 5, when the distance from the uppermost reform roof material 52 to the existing water drainage material 84 is less than or equal to a certain distance L1, that is, in the case of a short distance L3 that can reach the uppermost reform roof material 52 only with the water drainage material 12 and when it is not necessary to fill the gap with the small-sized reform roof material 51, overlapping laying can be carried out without using the extension cover material 20.

[0036] However, even when the distance from the uppermost reform roof material 52 to the existing water drainage material 84 is a short distance L3 and less than or equal to a certain distance L1, when the roof gradient θ is gentle, the receiving position of the water drainage material 12 becomes higher than the bent portion 23, and as shown in FIG. 6 of the water drainage material 12, an inverted gradient may occur.

[0037] Even in such a case, as shown in FIG. 7, by removing the uppermost reform roofing material 52, attaching the extension cover material 20, and lowering the position where the drain material 12 is received, a reverse gradient does not occur, and an appropriate drain gradient can be obtained.

[0038] As described above, even in a roof environment where there is a certain distance L1 from the uppermost reform roofing material 52 to the existing drain material 84 or where the roof gradient is gentle, by adjusting the overlapping length L2 and connecting the extension cover material 20 to the drain material 12, the extension cover material 20 is provided on the reform cover materials 100 and 200, and by adjusting the overlapping length L2, the factors causing the above-mentioned reverse gradient are eliminated, and an appropriate water gradient can be obtained in any environment.

[0039] Also, conventionally, it was necessary to use a small-sized reform roofing material 51, but by using the extension cover material 20, it is no longer necessary to use a small-sized reform roofing material 51, and it is possible to perform overlapping reform using only one type of reform roofing material 50.

[0040] It goes without saying that the embodiments of the present invention are not limited to the above-described forms and can be appropriately changed without departing from the scope of the idea of the present invention.

[0041] [First Feature] The first feature of the reform cover material of the present embodiment is that it is a reform cover material provided on the existing ridge of the roof when performing overlapping reform, and includes a ridge cover material that covers around the existing ridge and an extension cover material that is connected to the ridge cover material and extends toward the eaves side substantially parallel to the roof. The ridge cover material has a ridge wrap and a drain material that bends and extends from the ridge wrap toward the eaves side. The ridge cover material and the extension cover material are connected such that the extension cover material is on the lower side, with the extension cover material and the drain material overlapping, and the overlapping length at the overlapping portion is adjustable.

[0042] According to the first feature, since the extension cover material and the drip edge material are overlapped and connected, and the length of the overlap margin at the overlapping part is adjustable, the covered range can be determined, and one end 21 of the extension cover material can be received under the roof, so that it does not become an inverted gradient and an appropriate drip gradient can be obtained.

[0043] [Second feature] The characteristics of the reform cover material of this embodiment are that the existing building has an existing building timber and an existing building board material, and the existing building board material has an existing building fixed board material fixed to the existing building timber and an existing building drip edge material that bends and extends from the existing building fixed board material toward the eaves side, and further includes a reform drip edge material that is connected so as to extend from the existing drip edge material toward the eaves side and is arranged so as to overlap the overlap margin.

[0044] According to the second feature, since it further includes a reform drip edge material arranged so as to overlap the overlap margin, double waterproofing can be achieved by performing water drainage in addition to the drip edge material and the extension cover material. Also, the space below the drip edge material and the extension cover material can be significantly utilized.

[0045] [Third feature] The reform building structure of this embodiment is a reform structure of a building using the reform cover material described in claim 2, and includes a reform base timber arranged on the existing building fixed board material, a building cover material arranged so as to cover the reform base timber and the existing building timber, a fastening member for fixing the building cover material to the reform base timber from above the building cover material, a sliding door arranged on the reform roof material that is built up from the eaves side and is located at the uppermost stage, one end of the extension cover material is arranged on the sliding door, the other end of the reform drip edge material on the building side is connected to the existing drip edge material, and one end of the reform drip edge material on the eaves side is arranged on the reform roof material.

[0046] According to the third feature, the reform cover material described in claim 2 is used, in which the extension cover material and the water drainage material are overlapped and connected, and the length of the overlap at the overlapping part is adjustable. Therefore, the range of the cover that can be drained can be determined, and one end of the extension cover material can be received under the roof, so that it does not become an inverted gradient and an appropriate water drainage gradient can be obtained.

[0047] [Fourth Feature] The construction method of the reform cover material of this embodiment is a reform construction method of a building using the reform cover material described in claim 2, which includes a step of arranging reform base timbers on the existing building fixed plates, a step of arranging the building cover material so as to cover the reform base timbers and the existing building timbers, a step of adjusting the length of the overlap, a step of overlapping and connecting the extension cover material and the water drainage material, and a step of fixing the building cover material to the reform base timbers with fastening members from above the building cover material.

[0048] According to the fourth feature, the reform cover material described in claim 2 is used, in which the extension cover material and the water drainage material are overlapped and connected, and the length of the overlap at the overlapping part is adjustable. Therefore, by taking the step of adjusting the length of the overlap, it does not become an inverted gradient and an appropriate water drainage gradient can be obtained.

Explanation of Reference Numerals

[0049] 100 Reform cover material 10 Building cover material 11 Building wrap 12 Water drainage material 20 Extension cover material 21 One end 22 The other end 23 Bending part 24 Return 30 Reform water drainage material 31 One end 32 The other end 40 Reform base timber 41 Fastening member 50 Reform roof material 51 Small-sized reform roof material 52 Topmost reformed roofing material 70 Panel door 71 Rivet caulking 80 Existing building 81 Existing building timber 82 Existing building board 83 Existing building fixed board 84 Existing drip material 85 Existing roofing material 200 Reformed cover material 210 Sheet material 300 Reformed building structure L0 Distance of a certain length or more L1 Certain distance L2 Overlap length L3 Short distance D Water pond W Wall S Space θ Roof slope

Claims

1. When performing a laminated renovation, a renovation cover material provided on the existing building of the roof, comprising: A building cover material that covers around the existing building; An extension cover material connected to the building cover material and extending toward the eaves side substantially parallel to the roof, The building cover material has a building wrap and a water drainage material that bends and extends from the building wrap toward the eaves side; The building cover material and the extension cover material are connected such that the extension cover material overlaps with the water drainage material with the extension cover material on the lower side, and the length of the overlap at the overlapping portion is adjustable. A renovation cover material characterized by this.

2. The existing building has an existing building timber and existing building boards, The existing building boards have an existing building fixed board fixed to the existing building timber and an existing water drainage material that bends and extends from the existing building fixed board toward the eaves side, Further comprising a renovation water drainage material connected to extend from the existing water drainage material toward the eaves side and arranged to cover the overlap. The renovation cover material according to claim 1, characterized by this.

3. A renovation structure of a building using the renovation cover material according to claim 2, comprising: A renovation base timber arranged on the existing building fixed board; The building cover material is arranged to cover the renovation base timber and the existing building timber, and a fastening member for fixing the building cover material to the renovation base timber from above the building cover material; A surface door arranged on the renovation roof material that is built up from the eaves side and is located at the uppermost stage; One end of the extension cover material is arranged on the surface door; The other end of the renovation water drainage material on the building side is connected to the existing water drainage material; One end of the renovation water drainage material on the eaves side is arranged on the renovation roof material. A renovation building structure characterized by this.

4. A method for renovating a building using the reform cover material according to claim 2, comprising: placing a reform base wood on the existing building fixing board material; placing the building cover material so as to cover the reform base wood and the existing building wood; adjusting the length of the overlapping margin; overlapping and connecting the extension cover material and the drainage material; fixing the building cover material to the reform base wood with a fastening member from above the building cover material; A method for constructing a reform cover material, characterized by including the above steps.

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