Roof renovation structure

Abstract

To provide a roof renovation structure that can be installed over existing roofs such as slate roofs using renovation brackets (brackets equipped with fastening bolts), align the center of a support member with a ridge center of the existing roof, and ensure watertightness, strength, and design.SOLUTION: In a roof renovation structure of the present invention, an insulation layer 5 is formed by placing an insulation material 5A above an existing roof 4, and a support member 1 with an upper surface portion 11 on the insulation layer 5 is mounted using a fixing bolt 4B for the existing roof 4 and a renovation bracket 2 equipped with a fastening bolt 2A, an overlaying material 3 is installed on the upper surface portion 11 of the support member 1, and the upper surface portion 11 of the support member 1 is arranged horizontally.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a roof renovation structure that is installed above an existing roof such as a slate roof using renovation fittings (fittings equipped with fastening bolts), and that can align the center of the support member with the center of the existing roof, ensuring watertightness, strength, and design. [Background technology]

[0002] As a structure for preventing deformation and breakage of corrugated slate, a layered structure proposed in Patent Document 1 is known. This structure comprises a cylindrical sleeve 3 that fits over the existing bolt 2 that fastens the existing slate 1 and is fixed to the existing bolt 2 by crimping, a connecting bolt 4 fixed to the top of the sleeve 3, and a support member 7 with an arc-shaped cross section that is provided on top of the sleeve 3 and whose top follows the arc of the back surface of the peak portion 5a of the corrugated sheet 5 to be used for overlapping. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-018996 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the construction method of Patent Document 1, the sleeve 3 and connecting bolt 4 are attached directly to the existing bolt 2, so if the position of the existing bolt 2 is shifted or displaced from the crest center of the existing slate 1, the connecting bolt 4 will also be shifted or displaced, and the connecting bolt 4 will not be in the crest center of the corrugated sheet 5 for overlapping (= will be positioned displaced), and there is a possibility that a hole will be created at a lower position than usual when the sheet is crimped. Furthermore, the shape of the clamping metal fittings 43 did not match the shape of the corrugated sheet 5 for overlapping, making the waterproof gasket 42 less effective and reducing the watertightness of the corrugated sheet 5 for overlapping. Furthermore, the connecting bolts 4 were misaligned from the core of the threads, causing variations in the fixing position, which could impair the strength and design, or make it impossible to install the corrugated sheet 5 for overlapping at the position where the insertion holes were drilled.

[0005] Therefore, the present invention aims to propose a roof renovation structure that is installed above an existing roof such as a slate roof using renovation fittings (fittings equipped with fastening bolts), which allows the center of the support member to be aligned with the center of the existing roof, thereby ensuring watertightness, strength, and design. [Means for solving the problem]

[0006] The present invention has been proposed in consideration of the above, and relates to a roof renovation structure in which insulation material is arranged above an existing roof to form an insulation layer, and a support member having an upper surface on the insulation layer is attached with the fixing bolt material of the existing roof and renovation fittings having fastening bolts, and an overlay material is laid on the upper surface of the support member, characterized in that the upper surface of the support member is arranged horizontally.

[0007] The present invention also proposes a roof renovation structure, characterized in that in the roof structure, the renovation metal fittings penetrate the insulation layer.

[0008] Furthermore, the present invention also proposes a roof repair structure, wherein the support member in the roof structure is provided with a claw or a guide. [Effects of the Invention]

[0009] In the roof renovation structure of the present invention, the upper surface of the support member attached using the renovation fittings is arranged horizontally above the insulation layer, so that the center of the support member can be aligned with the position of the fixing bolts of a corrugated slate roof, etc., i.e., the core of the existing roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof. Furthermore, the support member has the effect of preventing the insulating material from scattering, and the portion in contact with the insulating material is flat, so that sinking can be suppressed. It is desirable that the support member has a long hole formed therein. In this case, the fastening bolt of the renovation hardware can be simply passed through the long hole, allowing for fine adjustment of the exact position for installation, making it easy to perform accurate position adjustments. It is also desirable to use a rigid material as the heat insulating material, and in that case, laying it down first can reduce the risk of stepping through the roofing material and falling during work.

[0010] Furthermore, when the repair fittings penetrate the insulation layer, the insulation material that forms the insulation layer will not shift out of position. That is, the insulation material is inserted by the fastening bolts of the repair fittings from the back side and is held down by the support member from the front side, so there is little chance of it shifting out of position even if people walk on it.

[0011] Furthermore, if the support member is provided with a claw or a guide, it can also be used as a holding member or a threading member, so the specifications of the overlapping material are not important. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a front view showing a roof renovation structure according to a first embodiment of the present invention. [Figure 2] (a) An enlarged plan view of the support member in the roof renovation structure of Example 1, (b) an enlarged front view thereof, (c) an enlarged side view thereof, (d) an enlarged front view of the overlapping material, (e) an enlarged front view of the insulation layer, and (f) an enlarged front view of the existing roof. [Figure 3] (a) A front view showing a roof renovation structure according to a second embodiment of the present invention, (b) a front view showing another embodiment of the support member, and (c) a front view showing yet another embodiment of the support member. [Figure 4] FIG. 10(a) is a front view showing a roof renovation structure (excluding the overlapping material) according to a third embodiment of the present invention, and FIG. 10(b) is a front view showing another embodiment of a support member that also serves as a retaining member. [Figure 5](a) is a front view showing the roof renovation structure of Example 5 of the present invention, and (b) is a side view of the support member used as the through member. [Figure 6] (a) A front view showing the roof renovation structure of Example 4 of the present invention, (b) a front view of the upper member forming the retaining member used, (c) a front view of the exterior material and cover material forming the overlapping layer used, and (d) a side view of the support member used. DETAILED DESCRIPTION OF THE INVENTION

[0013] The roof renovation structure of the present invention is a roof renovation structure in which insulation material is arranged above an existing roof to form an insulation layer, and a support member having an upper surface portion on the insulation layer is attached with renovation fittings having fixing bolts for the existing roof and tightening bolts, and an overlay material is laid on the upper surface portion of the support member, and is characterized in that the upper surface portion of the support member is arranged horizontally.

[0014] The existing roof to which this invention is applied is not limited in its configuration, but since the main purpose of the invention is to ensure strength and design above a corrugated slate roof, etc., as described above, the existing roof is a corrugated slate roof, etc., as shown in the illustrated examples described below. The fixing bolts on the existing roof are bolts that fasten the slate roofing material and are attached to the crest of the wave.

[0015] As mentioned above, the repair hardware used in the roof repair structure of the present invention is equipped with one or more fastening bolts, and it is desirable that these fastening bolts penetrate the insulation layer, because in this case the position of the insulation material that forms the insulation layer will not shift. It is desirable that the fastening bolts in this renovation fittings penetrate the insulation layer as described above, but it is even more desirable that they extend upward from the lower end of the insulation layer (penetrate) and are connected to a support member at the upper end of which the overlay material is laid.

[0016] The configuration (structure) of this repair metal fitting other than the fastening bolts is not specifically specified. For example, as shown in the illustrated embodiment described below, a molded material such as a U-shaped material having a contact surface portion to be attached to the top surface of the existing roof and a horizontal piece-shaped attachment portion may form the renovation hardware together with the fastening bolt.

[0017] This insulating material is preferably a water-impermeable material, but is not necessarily limited to this, and is preferably formed from a low-resilience, water-impermeable elastic material, such as the insulating material in the illustrated embodiment described below, and a material whose shape characteristics can be freely changed. In particular, it is preferable that the insulating material has alternating mountain-like portions and valley-like portions, and that the peaks and valley bottoms are formed flat, as in the illustrated embodiment described below. The insulation may be made of a rigid material, but in that case, laying it down first reduces the risk of stepping through the roof material and falling during work. Furthermore, while this rigid insulation has the drawback of being prone to shifting position when walked on, the insulation layer in this roof renovation structure is less likely to shift position when walked on because the fastening bolts of the renovation hardware pass through it or it is held down from above by support members.

[0018] The support member used in the present invention is a member having a horizontal piece-shaped upper surface portion, and is attached to the insulation layer by the repair metal fittings. Therefore, this support member is provided with a grounding portion that contacts the upper surface of the insulation layer, and this grounding portion is preferably formed in a planar shape, and further preferably has a tab or guide formed to prevent misalignment after attachment. As this support member is attached to the insulation layer as mentioned above, it has the effect of preventing the insulation material that forms the insulation layer from scattering, but the fact that the contact portion that comes into contact with the insulation layer is formed in a planar shape also has the effect of suppressing sinking into the insulation layer.

[0019] It is desirable that this support member have a long hole formed on its upper surface, etc. In this case, the fastening bolt of the renovation hardware can be simply passed through the long hole, allowing for fine adjustment of the exact position and installation, making it easy to accurately adjust the position of the overlay material installed on the upper surface. Furthermore, this support member primarily serves as a mounting bracket that is attached to the insulating layer and allows the application of an overlay material to its upper surface, but it can also be used as a holding member or threading member, and any type of overlay material can be used. In particular, when this support member also serves as a holding member, its upper surface is not limited to the flat portion located at the top, but the horizontal piece-shaped base surface equipped with the holding portion can be considered as the upper surface.

[0020] The upper surface of this support member is arranged horizontally, but the upper surface of the support member, which is attached at a predetermined interval in the horizontal direction, can be visually checked from the side before laying the overlay material, and its horizontality can be adjusted. In other words, the support members are attached to the insulation material while fine-tuning the placement position of the grounding portion, but horizontality is maintained while the continuity (discontinuous continuity) of the upper surface of each support member can be visually confirmed from the side. Furthermore, since the support member is attached to the insulation layer together with the overlay material using the renovation fittings, assuming that the renovation fittings (fastening bolts) are arranged vertically, the upper surface is arranged perpendicular to it, i.e., horizontally.

[0021] In addition, the overlapping material used in the present invention is a component laid on the upper surface of the support member and is attached to the top surface (outermost surface) of the roof renovation structure of the present invention, and as mentioned above, the type of this overlapping material is not important. Therefore, for example, as shown in the illustrated embodiment described later, the structure may be such that mountain-shaped portions and valley-shaped portions are formed alternately and continuously, or a structure in which part of the approximately flat portion is formed in a ridge shape may be used.

[0022] The roof renovation structure of the present invention, which has such a configuration, has the upper surface above the insulation layer of the support member, which is attached using the renovation fittings, arranged horizontally, so that the center of the support member can be aligned with the crest of the existing roof regardless of the position of the fixing bolts of the existing roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof. Furthermore, the support member has the effect of preventing the insulating material from scattering, and the portion in contact with the insulating material is flat, so that sinking can be suppressed.

[0023] Furthermore, when the fastening bolts of the repair fittings penetrate the insulating layer, the position of the insulating material forming the insulating layer will not shift. Furthermore, if the support member is equipped with a claw or a guide, it can also be used as a holding member or a threading member, so the specifications of the overlapping material are not important. [Example]

[0024] The roof renovation structure of Example 1 shown in Figure 1 has an insulating material 5A arranged above an existing roof 4 to form an insulating layer 5, and a support member 1 having an upper surface 11 is attached to the insulating layer 5 using fixing bolts 4B of the existing roof 4 and renovation fittings 2 having fastening bolts 2A, and an overlapping material 3 is laid on the upper surface 11 of the support member 1, and the upper surface 11 of the support member 1 is arranged horizontally.

[0025] The renovation fittings 2 used in the roof renovation structure of this Example 1 are equipped with fastening bolts 2A that are installed vertically relative to the fixing bolts 4B of the existing roof 4, and are composed of the fastening bolts 2A, U-shaped members 2B, and two fasteners (nuts) 2d and 2e that penetrate the thermal insulation layer 5, as shown in Figures 2(d) and (f). Because the fastening bolts 2A penetrate the thermal insulation layer 5, the position of the thermal insulation material 5A that forms the thermal insulation layer 5 will not shift. As described above, this renovation fitting 2 consists of a fastening bolt 2A that penetrates the insulation layer 5, a U-shaped material 2B, and two fasteners (nuts) 2d and 2e. The former of the two fasteners (nut 2d) serves to fix the lower end of the fastening bolt 2A to the mounting portion 21 of the U-shaped material 2B, and the latter (nut 2e) serves to fix the support member 1 on the insulation material at the upper end of the fastening bolt 2A.

[0026] The existing roof 4 in this Example 1 is a corrugated slate roof, and has a structure in which an exterior material 4A, which is an existing corrugated slate material, is fastened with fixing bolts 4B. A U-shaped member 2B having a horizontal piece-like mounting portion 21 is fixed to the existing roof 4 by fastening the fixing bolts 4B. The U-shaped member 2B has a contact surface 22 that is attached to the top surface of the exterior cladding material 4A and is formed to face the mounting portion 21, and an inclined vertical surface 23 that connects the side ends of the mounting portion 21 and the contact surface 22, forming the U-shape. The U-shaped member 2B has a corrugated clamping member 2C that presses the upper surface of the contact surface 22 with the head of the fixing bolt 4B, so that the mounting portion 21 is positioned above the top surface (core) of the exterior cladding material 4A. The corrugated clamping member 2C shown in Figures 1 and 2(f) is configured with a buffer material disposed on the back side of the metal material.

[0027] As shown in the figure, it is desirable that the fixing bolts 4B and fastening bolts 2A be arranged vertically at the center of the existing roof 4, but even if the fixing bolts 4B of the existing roof 4 are arranged at an angle, by making the support member 1 a long hole, it is possible to adjust the mounting portion 21 to be arranged horizontally, and thereby adjust the fastening bolts 2A of the renovation fittings 2 to be arranged vertically while checking visually, etc.

[0028] The support member 1 used in Example 1 is a member having a horizontal piece-shaped upper surface portion 11 as shown in Figures 2(a) to (c), and is attached to the thermal insulation layer 5 by means of renovation fittings 2. Therefore, this support member 1 is provided with a grounding portion 12 that contacts the upper surface of the thermal insulation layer 5, and this grounding portion 12 is formed in a planar shape, with guides 121 formed on its side edges to prevent misalignment after attachment. On the grounding portion 12, a top surface portion 11 is formed at the upper end of a low, stepped side surface 13, and this grounding portion 12 and top surface portion 11 are molded parallel to each other. As shown in Figures (a) and (b), this support member 1 has a flat rear portion and a platform-shaped front portion, the top of which is the upper surface 11, and the rear portion has a long hole 120 that is long horizontally, and a horizontal hole 122 for inserting this support member 1 into the fastener 3C of the overlay material 3 from the left side is formed so as to reach the right end of the ground contact portion 12.

[0029] In addition, the insulating layer 5 used in this Example 1 is made of insulating material 5A, which is made of a low-resilience, non-water-permeable elastic material in which mountain-shaped portions and valley-shaped portions are alternately continuous, and the peaks and valley bottoms are formed flat, as shown in Figure 2(e). The insulating material 5A in this illustrated embodiment has a two-layer structure consisting of a surface layer 51 including a reinforcing material 52 for shape stabilization purposes and a back layer 53, and has a space 50 extending from the back side to the surface side through which the fastening bolt 2A of the renovation fittings 2 is inserted. As shown in Figure 1, this insulating material 5A has an overlapping portion 54a at one side end and a non-overlapping portion 54b along the back side at the other side end, and is shaped so that it can be overlapped in a double-sided manner.

[0030] In addition, the overlapping material 3 used in this Example 1 is a member laid on the upper surface 11 of the support member 1, attached to the top surface (outermost part), and formed so that mountain-shaped portions 3A and valley-shaped portions 3B are alternately arranged in succession, and one piece of overlapping material 3 is molded so that five mountain-shaped portions 3A and five valley-shaped portions 3B are formed. As shown in Figure 2(d), this overlapping material 3 consists of a flat top 31 of the mountain-shaped portion 3A, an arc-shaped bottom 33 of the valley-shaped portion 3B, and an inclined portion 32 formed between them, with an overlapping portion 34a formed at one side end and an overlapping portion 34b formed along the back side at the other side end, and the tips of these overlapping portions 34a and 34b are each folded down to the back side, so they can be easily attached to the top 31 of the mountain-shaped portion 3A from the front side.

[0031] As described above, when the fastening bolts 2A of the renovation fittings 2 are installed vertically relative to the fixing bolts 4B of the existing roof 4, a space 50 extending toward the surface layer is formed in the insulation material 5A, so that no unnecessary stress is applied to the fastening bolts 2A when the insulation material 5A is installed, and therefore the fastening bolts 2A are not tilted and a continuous insulation layer 5 can be installed. Furthermore, since the insulating layer 5 in this Example 1 is configured so that the peak portion is formed flat, the support member 1 attached to the peak portion of the insulating layer 5 has a flat upper surface portion 11, which is the top of the platform portion, and both the upper surface portion 11 and the ground portion 12 can be easily adjusted to be horizontal. Furthermore, when the fastening bolt 2A is attached vertically, the upper surface portion 11, which is disposed perpendicular to the fastening bolt 2A, can also be easily adjusted to be horizontal.

[0032] In this way, in the roof renovation structure of Example 1, the upper surface 11 of the support member 1 attached using the vertically arranged renovation fittings 2 is arranged horizontally above the insulating layer 5, so that the support member 1 can be aligned with the crest of the existing roof 4 regardless of the position of the fixing bolts 4B of the existing roof 4, such as a corrugated slate roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof 4. Furthermore, the support member 1 has the effect of preventing the heat insulating material 5A from scattering, and can suppress sinking of the planar ground contact portion 12 that contacts the heat insulating material 5A. In addition, since the support member 1 of this Example 1 has a long hole 120 formed therein, the fastening bolt 2A of the renovation fitting 2 can be simply passed through the long hole 120, allowing for fine adjustment of the exact position for installation, making it easy to perform accurate position adjustment. Furthermore, since a rigid material is used as the heat insulating material 5A, laying it first reduces the risk of stepping through the existing exterior material 4A or the like and falling during work. Moreover, since the heat insulating material 5A is inserted with the fastening bolts 2A from the back side and is held down by the support member 1 from the front side, the heat insulating material 5A is unlikely to shift position even if someone walks on it. [Example]

[0033] In the roof renovation structure of Example 2 shown in Figure 3(a), parts that use the same configuration as in Example 1 are given the same symbols in the drawing and will not be described again.For example, with respect to the support member 1II, an upper surface portion 11ii is formed at the upper end of a high, stepped side surface 13ii on top of a flat, wide ground contact portion 12ii extending to the side end, and these ground contact portions 12ii and upper surface portions 11ii are molded parallel to each other. Furthermore, the insulating materials 5AII and 5BII that form the insulating layer 5II have a two-layer structure, but are composed of a surface layer portion 5AII whose outermost surface is formed flat, and a back layer portion 5BII whose mountain-shaped portions and valley-shaped portions are alternately continuous, and whose mountain peaks and valley bottoms are formed flat. Furthermore, the renovation fittings 2 in this embodiment 2 consist of a fastening bolt 2A that penetrates the insulation layer 5II and the grounding portion 12ii, a U-shaped material 2B, and a clamping material 2C, and the fastening bolt 2A and the fixing bolt 4B of the existing roof 4 can be arranged vertically.

[0034] In the roof renovation structure of this Example 2, the upper surface 11ii on the insulating layer 5II of the support member 1II, which is attached using the vertically arranged renovation fittings 2, is arranged horizontally, so that the support member 1II can be aligned with the crest of the existing roof 4 regardless of the position of the fixing bolts 4B of the existing roof 4, such as a corrugated slate roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof 4.

[0035] The support member 1III shown in FIG. 3(b) has a side surface 13iii and an upper surface portion 11iii formed in an L-shape, and the support member 1IV shown in FIG. 3(b) has a side surface 13iv and an upper surface portion 11iv that are substantially the same as the side surface 13ii and the upper surface portion 11ii of the support member 1II in the support member 1II of Example 2. Furthermore, the former (support member 1III) has claws 123 formed on the back surface of the ground contact portion 12ii, which bite into the surface of the heat insulating layer 5II and suppress misalignment after installation, making it less likely to become misaligned. The latter (support member 1IV) has guides 121 formed on both ends of the ground contact portion 12iv, as in Example 1, so that misalignment on the surface of the heat insulating layer 5II after installation is suppressed and making it less likely to become misaligned. [Example]

[0036] The roof renovation structure of Example 3 shown in Figure 4(a) is similar to Example 2 in that the insulation layer 5II is attached using the renovation fittings 2 arranged vertically and the fastening bolts 2A penetrate the insulation layer 5II, but in Example 3 the bolts also penetrate the grounding portion 71 of the support member 7 which also serves as a retaining member, and although not shown, various types of overlapping materials, such as the overlapping material shown in Figure 5 described below, can be attached. As mentioned above, this support member 7 is a member that also serves as a retaining member, and on the upper surface of the flat grounding portion 71 arranged on the insulating layer 5II, vertical piece portions 72 with curved upper ends 721 are formed opposite each other on the left and right, and on the upper surface of the horizontal piece portion 73 connecting the vertical piece portions 72, 72, wedge-shaped locking pieces 74, 74 with upper ends 741 are formed opposite each other on the left and right, and the horizontal piece portion between them is the upper surface portion 75. The support member 7, which also serves as a holding member, is firmly attached to the grounding portion 71 of the support member 7 by fixing a fastener (nut) 2e to the upper end of a fastening bolt 2A that protrudes from below.

[0037] The support member 7II shown in Figure 4(b) is a member that also serves as a retaining member, similar to the support member 7 in Example 3, and has a locking piece 722 that hangs down in an arc from the upper end to the outside on the upper surface of the flat grounding portion 71ii arranged on the insulating layer 5II.

[0038] In the roof renovation structure of Example 3, the upper surface 75 of the support member 7 attached using the renovation fittings 2 is arranged horizontally on the insulating layer 5II, so that the support member 7 can be aligned with the crest of the existing roof 4 regardless of the position of the fixing bolts 4B of the existing roof 4, such as a corrugated slate roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof 4. [Example]

[0039] The roof renovation structure of Example 4 shown in Figure 5(a) is similar to Example 2 in that the insulation layer 5II is attached using the vertically arranged renovation fittings 2, and the fastening bolts 2A penetrate the insulation layer 5II and the grounding portion 12v of the support member 1V. However, in Example 4, the insulation layer 6 is arranged to surround the support member 1V, which is a through material in the flow direction, and a flat overlap layer 8 is formed on the upper surface thereof.

[0040] FIG. 5(b) shows a side view of the support member 1V, in which the upper surface 11v, side surface 13v, and ground contact portion 12v are continuous in the flow direction. As shown in the figure, by providing a hole 120v in the ground contact portion 12v, it is possible to easily fix a fastener (nut) 2e to the upper end of a fastening bolt 2A that protrudes through the hole 120v (not shown).

[0041] In the roof renovation structure of this Example 4, the upper surface 11v of the support member 1V attached using the renovation fittings 2 is arranged horizontally on the insulating layer 5II, so that the support member 1V can be aligned with the crest of the existing roof 4 regardless of the position of the fixing bolts 4B of the existing roof 4, such as a corrugated slate roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof 4. [Example]

[0042] The roof renovation structure of Example 5 shown in Figure 6(a) is similar to Example 2 in that the insulation layer 5II is attached using the renovation fittings 2 arranged vertically, and the fastening bolts 2A penetrate the insulation layer 5II and the grounding portion 12vi of the support member 1VI. However, in Example 5, a support member 1VI, which is a through member, is arranged on the insulation layer 5II perpendicular to the flow direction, and overlapping materials 8A and 8B are laid on the upper surface portion 11vi of the support member 1VI using a lower member 7BIII and an upper member 7AIII which is combined with the lower member 7BIII to form a single retaining member.

[0043] The lower member 7BIII forming the retaining member in this example is similar to the support member 7 which also serves as the retaining member in Example 3 as described above, and a locking piece 72iii hanging down in an arc from the upper end to the outside is formed on the upper surface side of a flat grounding portion 71iii arranged on the upper surface portion 11vi of the support member 1VI. As shown in FIG. 6(b), the upper member 7AIII has curved upper ends 761 formed with opposing holding portions 76 on the left and right, and horizontal pieces 77 connecting the holding portions 76, 76.

[0044] In this example, the overlapping material 8A is an exterior material having side portions 82 in which the left and right side edges of the panel portion 81 are raised, and a backing material 8b is interposed on the back side of the panel portion 81, and an attachment portion 821 bent outward is formed on the side portion 82. In addition, the overlapping material 8B is a cover material having a folded-down portion 84 in which both ends of the upper surface portion 83 are bent downward, and a shallow groove 831 that is recessed downward is formed on the back side of the upper surface portion 83, and an engaging portion 841 that is bent outward is formed in the folded-down portion 84.

[0045] Then, with the lower member 7BIII fixed, the overlay material 8A, which is the exterior material, is attached, and by arranging the upper member 7AIII, the side portion 82 of the overlay material 8A is stably held, and finally, the overlay material 8B, which is the cover material, is attached in a fitting manner to stably attach the overlay layer.

[0046] In the roof renovation structure of Example 5, the upper surface 11vi of the support member 1VI, which is attached using the vertically arranged renovation fittings 2, is arranged horizontally on the insulating layer 5II, so that the support member 1VI can be aligned with the crest of the existing roof 4 regardless of the position of the fixing bolts 4B of the existing roof 4, such as a corrugated slate roof, and watertightness, strength, and design can be ensured regardless of the construction status of the existing roof 4. [Explanation of symbols]

[0047] 1 Support member 11 Top part 12 Grounding part 120 long hole 121 Guide 123 Claws 2 Repair fittings 2A Fastening Bolt 2B U-shaped material 2C clamping material 2d, 2e Fasteners (nuts) 21 Mounting part 22 Contact area 23 Vertical section 3 Overlay material 4 Existing roof (slate roof) 4A exterior material 4B Fixing bolt 5. Insulation layer 5A insulation 6. Insulation layer 8 Overlay Layer

Claims

1. A roof renovation structure in which an insulating material is disposed above an existing roof to form an insulating layer, and a support member having an upper surface on the insulating layer is attached with a renovation fitting having fixing bolts for the existing roof and fastening bolts, and an overlapping material is laid on the upper surface of the support member, A roof renovation structure characterized in that the upper surface portion of the support member is arranged horizontally.

2. The roof renovation structure according to claim 1, wherein the renovation fittings penetrate the insulation layer.

3. 3. The roof renovation structure according to claim 1, wherein the support member is provided with a claw or a guide.

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