JP6797419B2 - Construction method of mounting members for mounting on-roof installations and fixing structure of mounting members - Google Patents

Description

The present invention relates to a method of constructing a mounting member for mounting an on-roof installation object to the structure above the roof surface material thatched on the roof structure, and a fixing structure of the mounting member.

It has an opening as a structure for attaching rooftop installations such as solar cell modules and solar water heaters to the structure above the roof surface material that is covered with roof structural materials such as rafters and field boards. A supporting roofing material that replaces the roofing surface material, a resin block that is attached to the structure and whose upper surface projects above the supporting roofing material through the opening, and an opening of the resin block and the supporting roofing material. There has been proposed a waterproof cover that covers the roof from above, and a mounting member that penetrates the waterproof cover and is mounted on a resin block to which an object to be installed on the roof is mounted (Patent Document 1). According to the technique of Patent Document 1, the weight of the roof-mounted object can be received by the roof structure via the mounting member and the resin block without being applied to the roof support material, and the roof-mounted object is expensive. Can be fixed to the roof with strength.

However, in the technique of Patent Document 1, when fixing the existing mounting member, it is necessary to remove the thatched roof surface material and replace it with a supporting roof material, but in order to remove the alternative roof surface material, the surroundings thereof. It was also necessary to remove some of the roof surface materials, and there was a problem that the replacement work took time and effort. In addition, since the shape and size of the roof surface material used for each building varies, it is necessary to prepare many types of support roofing materials in advance so that they can be used. There was a problem that management became complicated and the cost increased.

Japanese Unexamined Patent Publication No. 2016-89410

Therefore, in view of the above circumstances, it is an object of the present invention to provide a method of constructing a mounting member for mounting an on-roof installation object capable of suppressing an increase in cost, and a fixed structure of the mounting member. Is.

In order to solve the above problems, the method of constructing the mounting member for mounting the on-roof installation according to the present invention is "from the roof structure to the upper surface of the roof surface material laid on the structure. When the first waterproofing material is attached to one end of a tubular strut member longer than the height of the strut member, and when one end of the strut member is placed downward on the structure. Auxiliary member attaching step of attaching an elastic auxiliary member to the outer peripheral surface of the support member so as to coincide with the upper surface of the roof surface material, and the roof surface material having a larger size than the outer periphery of the support member. A through hole forming step of forming a through hole smaller than the outer circumference of the auxiliary member attached to the outer periphery of the support member, and one end of the support member to which the first waterproof material is attached are directed downward. In this state, the support member is inserted into the through hole from above and placed on the structure, and the auxiliary member is brought into contact with the inner surface of the through hole. A caulking process in which a caulking material is applied over the entire outer circumference of the support member so as to straddle the support member and the roof surface material, and an on-roof installation object is attached to the upper end of the support member with a second waterproof material in between. It is provided with a fixing step of mounting the mounting member to be mounted, penetrating the support column member from above the mounting member, and screwing a fixing screw into the structure to fix the structure. "

Here, as the "structure" of the roof, rafters and field boards can be exemplified. Further, examples of the "roof surface material" include roof tiles, slate, and sheet metal roofing materials. Further, examples of the "installed object on the roof" include a solar cell module, a solar water heater, an outdoor unit of an air conditioner, and a crosspiece member that supports them.

Further, as the "support member", one that corresponds to one mounting member with one member and one that corresponds to one mounting member with a plurality of members can be exemplified. Further, as the "post member", a cylindrical shape or a polygonal tubular shape can be exemplified.

Further, as the "first waterproof material and the second waterproof material", a sheet-like material and a semi-kneaded material (gel-like material) can be exemplified. Examples of the "material" of the first waterproof material and the second waterproof material include butyl rubber, silicon rubber, and polyurethane rubber. In the waterproofing treatment step, in addition to the first waterproofing material, the second waterproofing material may be attached to the end opposite to one of the support columns. When only the first waterproof material is attached in the waterproof treatment step, the second waterproof material may be attached to the lower surface of the attachment member or the upper surface of the support column member in the fixing step.

Further, examples of the "auxiliary member" include a sponge, a flexible polyurethane foam, a foam rubber, and a foam resin. Further, as the "caulking material", a silicon-based material, a modified silicon-based material, and a polyurethane-based material can be exemplified.

Further, as the "mounting member", "a member having at least one slot (T slot, cross slot) into which a bolt head or a nut for mounting a roof-mounted object is slidably inserted", "Having at least one bolt protruding upward to attach the rooftop installation", "Having at least one screw hole into which the bolt to mount the rooftop installation is screwed" "What is there" can be exemplified.

According to this configuration, a through hole is formed in the roof surface material, and the support member is placed on the roof structure (hereinafter, also simply referred to as a structure) through the through hole from above, as in the conventional technique. In addition, it is not necessary to remove the roof surface material and replace it with a supporting roof material having an opening. Therefore, it is not necessary to prepare many types of supporting roofing materials having different shapes and sizes in advance, and by reducing the types of parts to be managed, it is possible to simplify the parts management and increase the cost. Can be suppressed. Therefore, the mounting member can be fixed to the structure regardless of the shape and size of the roof surface material, and can be applied to various existing roofs. Further, since the through hole of the roof surface material can be formed in a short time by using a drill (core drill), the labor and time required for construction are compared with the case of substituting the support roof material as in the conventional case. Can be shortened, and the increase in cost can be suppressed.

Further, since the auxiliary member having elasticity is brought into contact with the inner surface of the through hole and the caulking material is applied from above the auxiliary member, the auxiliary member can prevent the caulking material from falling, and the caulking process. Workability is good.

Further, in the waterproofing process, the first waterproofing material is attached to the end of the strut member on the side to be mounted on the structure, so that when the strut member is mounted on the structure in the insertion step, the first waterproofing material is attached. This makes it possible to make the strut members less slippery with respect to the structure. Further, in the fixing step, since the mounting member is placed on the strut member with the second waterproof material in between, the second waterproofing material can make the mounting member less slippery with respect to the strut member. Therefore, when working on an inclined roof, it is not necessary for the operator to keep holding the support member and the mounting member, and the workability is good.

The fixing structure of the mounting member for mounting the on-roof installation according to the present invention is "a roof surface material that is covered on the roof structure and has through holes penetrating up and down, and the lower end is first waterproof. It has elasticity with a tubular strut member that is in contact with the upper surface of the roof structure with the material in between and the upper end projects upward from the upper surface of the roof surface material through the through hole. It is interposed between the outer peripheral surface of the support member and the inner peripheral surface of the through hole in a compressed state, and straddles the support member and the roof surface material above the auxiliary member. The roof penetrates the support member from above in a state where the coking material applied over the entire outer circumference of the support member and the second waterproof material are in contact with the upper end of the support member. It is fixed by a fixing screw screwed into the structure of the roof, and is provided with a mounting member to which an object to be installed on the roof can be mounted. "

The fixed structure of this configuration is constructed by the above-mentioned construction method. As a result, the strut member on which the mounting member is mounted is mounted on the roof structure through the through hole of the roof surface material, so that the entire weight of the roof installation object is not applied to the roof surface material. It can be received by the structure via the member and the support column member, and the object installed on the roof can be fixed to the roof with high strength.

Further, a first waterproof material is interposed between the structure and the support member, and a second waterproof material is interposed between the support member and the mounting member, and a fixing screw is constructed from above the mounting member. Since it is screwed into the body, the fixing screw passes through the first waterproof material and the second waterproof material, so that rainwater can be prevented from entering the structure side through the fixing screw.

As described above, as an effect of the present invention, it is possible to provide a method of constructing a mounting member for mounting an on-roof installation object capable of suppressing an increase in cost, and a fixing structure of the mounting member.

It is sectional drawing which shows the fixing structure of the attachment member for attaching the installation object on the roof which is one Embodiment of this invention. (A) is a plan view of the strut member used for the fixed structure of FIG. 1, and (b) is a perspective view of the strut member of (a). (A) is a perspective view of a mounting member used in the fixing structure of FIG. 1, and (b) is a perspective view of a mounting member having a form different from that of (a). (A) and (b) are explanatory views of the waterproof treatment process in which a sheet-shaped first waterproof material is attached to one end of a support column member. (A) is an explanatory view showing a state in which the support member to which the auxiliary member is attached by the auxiliary member attaching step is positioned above the roof surface material in which the through hole is formed by the through hole forming step, and (b). ) Is an explanatory diagram of a caulking process in which a caulking material is applied to a support member inserted into the through hole by the insertion process. (A) It is explanatory drawing of the fixing process of fixing a mounting member to a roof structure via a support member provided with a caulking material, and (b) is an object to be installed on the roof to a mounting member fixed to the roof structure. It is explanatory drawing of the insertion of the root angle bolt for mounting. (A) to (c) are explanatory views of the waterproof treatment process and the auxiliary member attachment process for the support column member having a form different from that of FIG. It is explanatory drawing of the insertion process, the caulking process, and the fixing process using the support column member of FIG. Continuing from FIG. 8, it is explanatory drawing of the insertion of the root angle bolt for attaching the installation object on the roof to the attachment member fixed to the structure of the roof.

The fixing structure of the mounting member for mounting the rooftop installation object according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

The fixed structure of the present embodiment is a roof surface material 2 having a through hole 2a that is laid on the roof structure 1 and penetrates vertically, and the lower end of the structure 1 is sandwiched between the first waterproof material 10. It is provided with a tubular support member 11 which is in contact with the upper surface and whose upper end projects upward from the upper surface of the roof surface material 2 through the through hole 2a. In the present embodiment, the structure 1 is a field board and the roof surface material 2 is a roof tile.

Further, the fixed structure has elasticity, and the auxiliary member 12 and the auxiliary member 12 are interposed between the outer peripheral surface of the support column member 11 and the inner peripheral surface of the through hole 2a in a compressed state. It is provided with a caulking material 13 that is applied over the entire outer circumference of the support member 11 so as to straddle the support member 11 and the roof surface material 2 above the support member 11.

Further, in the fixing structure, the fixing screw 15 is screwed into the roof structure 1 through the support column member 11 from above in a state where the second waterproof material 14 is in contact with the upper end of the support column member 11. It is provided with a mounting member 16 to which the on-roof installation object 3 is mounted.

The first waterproof material 10 and the second waterproof material 14 are the same, and are in the form of a sheet having a certain thickness and have adhesiveness on both sides. The first waterproof material 10 and the second waterproof material 14 of the present embodiment are butyl rubber sheets, and release papers for protecting adhesiveness are attached to both sides thereof.

As shown in FIG. 2, the support column member 11 is formed in a cylindrical shape. The strut member 11 has a tubular main body 11a, four reference portions 11b provided at regular intervals in the circumferential direction on the outer peripheral surface of the main body 11a, and one reference at one end of the main body 11a. It has a notch portion 11c provided at a portion of the portion 11b.

Further, the strut member 11 penetrates the four fixing portions 11d protruding from the inner surface of the main body portion 11a and provided at intervals in the circumferential direction and the four fixing portions 11d in the axial direction of the main body portion 11a. It has an insertion hole 11e through which the fixing screw 15 is inserted. Further, the support column member 11 is formed in each of the four fixing portions 11d, and has an opening 11f in which the insertion hole 11e and the inside of the main body portion 11a are communicated with each other over the entire length of the main body portion 11a in the axial direction. Have.

The main body portion 11a has a circular outer circumference and a circular inner circumference, and has a shape in which two outer points of the reference portion 11b are connected by a straight line. The four reference portions 11b are provided at intervals of 90 degrees at equal angles about the axis of the main body portion 11a. The reference portion 11b is recessed in a V shape and is provided over the entire length parallel to the axial direction of the main body portion 11a. The cutout portion 11c is shallowly cut out halfway from one end portion of the main body portion 11a to the other end portion in a state of penetrating the tubular main body portion 11a in the radial direction.

The four fixing portions 11d are provided at equal intervals of 90 degrees about the axis of the main body portion 11a, and are separated from the reference portion 11b at an angle of 45 degrees. As shown in FIG. 2A, the four fixing portions 11d are provided line-symmetrically with respect to the center line CL passing through the center of the main body portion 11a and the center of the notch portion 11c. The shape of the four fixing portions 11d seen from the axial direction of the main body portion 11a is substantially C-shaped due to the presence of the insertion hole 11e and the opening 11f.

Of the four fixing portions 11d, the two fixing portions 11d close to the notch portion 11c are provided so that their respective openings 11f face the notch portion 11c slightly more than when they face each other. .. Further, in each of the two fixed portions 11d close to the notch portion 11c, the side surface on the side far from the notch portion 11c is orthogonal to the center line CL. Therefore, the wall thickness of the two fixed portions 11d close to the notch portion 11c on the side far from the notch portion 11c is larger than that on the near side.

On the other hand, of the four fixing portions 11d, the two fixing portions 11d far from the notch portion 11c are provided so that their respective openings 11f face the direction of the notch portion 11c with respect to the center of the main body portion 11a. Further, in the two fixed portions 11d far from the notch portion 11c, the portion connected to the main body portion 11a on the side surface close to the center line CL is parallel to the center line CL and from the parallel line PL passing through the center of each insertion hole 11e. Is also closer to the Chuo Line CL.

The auxiliary member 12 is a prismatic sponge, and is attached to the outer peripheral surface of the support member 11 by a double-sided adhesive tape. The caulking material 13 is a modified silicon type.

As shown in FIG. 3A, the mounting member 16 has a rectangular flat plate-shaped base portion 16a and four fixing holes 16b that penetrate the base portion 16a and allow the fixing screw 15 to be inserted. .. Further, the mounting member 16 is provided on the upper surface of the base portion 16a between the pair of ridge portions 16c protruding downward from two parallel sides of the base portion 16a and the pair of ridge portions 16c. It has an identification line portion 16d, which is a linear groove parallel to the strip portion 16c. Further, the mounting member 16 has a pair of flat plate-shaped standing wall portions 16e protruding upward from the base portion 16a with the identification line portion 16d in between, and a pair of vertical wall portions 16e in a direction of approaching each other from the upper side of each. It has a pair of flat top wall portions 16f that extend out.

The base portion 16a is formed in a size capable of covering the support column member 11 from above. The four fixing holes 16b are provided on both sides with the identification line portion 16d in between. The four fixing holes 16b are provided at intervals corresponding to the four insertion holes 11e of the support column member 11. The pair of ridges 16c are formed so that the distance between the inner surfaces facing each other is slightly longer than the diameter of the support column member 11. The identification line portion 16d is a groove recessed in a V shape.

The mounting member 16 has an inverted T-shaped slot 16g surrounded by a base portion 16a, a pair of standing wall portions 16e, and a pair of top wall portions 16f. The head portion 4a of the root angle bolt 4, which will be described later, is slidably inserted into the slot 16g.

The strut member 11 of the present embodiment has an outer diameter of 90 mm and a length of 80 mm. Further, in the present embodiment, the support member 11 and the mounting member 16 are each formed of an aluminum alloy extruded mold material.

Subsequently, a construction method for fixing the mounting member 16 to the roof structure 1 will be described with reference to FIGS. 4 to 6. The method of constructing the mounting member in the present embodiment includes a waterproof treatment step, an auxiliary member sticking step, a through hole forming step, an insertion step, a caulking step, and a fixing step.

In the waterproofing treatment step, the first waterproofing material is applied to one end of the tubular support member 11 which is longer than the height from the roof structure 1 to the upper surface of the roof surface material 2 which is laid on the structure 1. This is the process of installing 10. More specifically, in the waterproofing process, a sheet-shaped first waterproofing material 10 having one side cut into a square having the same length as the outer diameter of the support column member 11 is prepared. Then, of the release papers attached to both sides of the first waterproof material 10, the release papers on one side are peeled off, and the adhesive surface is attached to the end portion of the support column member 11 on the side where the notch portion 11c is formed. wear. At this time, as shown in FIG. 4A, the notch portion 11c is positioned at the center of one side of the first waterproof material 10. After that, the portion of the first waterproof material 10 outside the support column member 11 is bent and attached to the outer peripheral surface of the support column member 11 (see FIG. 4B). The portion of the first waterproof material 10 outside the support column member 11 may be cut off.

According to the waterproof treatment step, since the first waterproofing material 10 to be attached to the support column member 11 is in the form of a sheet, the thickness is constant. Therefore, in the subsequent insertion step, the support column member 11 is attached to the structure 1. When mounted, the strut member 11 does not tilt, and the strut member 11 can be made perpendicular to the upper surface of the structure 1.

In the step of attaching the auxiliary member, the auxiliary member 12 having elasticity is attached to the support member 12 so as to coincide with the upper surface of the roof surface material 2 when one end of the support member 11 is placed on the structure 1 with the support member 11 facing downward. This is a step of attaching to the outer peripheral surface of 11. Specifically, in the auxiliary member attaching step, the double-sided adhesive tape is attached to one surface of the auxiliary member 12 made of a prismatic sponge. Then, with the surface of the auxiliary member 12 to which the double-sided adhesive tape is attached facing the outer peripheral surface of the support member 11, the auxiliary member 12 is attached so as to be wound around the outer peripheral surface of the support member 11 (FIG. 5 (FIG. 5). See a)). At this time, when the support member 11 is placed on the structure 1 with the end portion to which the first waterproof material 10 is attached facing downward, the upper surface of the auxiliary member 12 coincides with the upper surface of the roof surface material 2. The auxiliary member 12 is attached to the outer peripheral surface of the support member 11 so as to be used.

The through hole forming step is a step of forming a through hole 2a in the roof surface material 2 which is larger than the outer circumference of the support column member 11 and smaller than the outer circumference of the auxiliary member 12 attached to the outer circumference of the support column member 11. That is, in the through hole forming step, a through hole 2a having a size larger than the diameter of the support member 11 and smaller than the diameter of the auxiliary member 12 attached to the support member 11 is drilled in the roof surface material 2. It is formed using a core drill). It is desirable that the through hole 2a is formed perpendicular to the upper surface of the roof surface material 2. In this embodiment, a through hole 2a having an inner diameter of 100 mm is formed.

The through hole forming step may be performed before the auxiliary member attaching step. The reason for this is that the diameter of the auxiliary member 12 in the state where the auxiliary member 12 is attached to the support member 11 can be known in advance from the width of the auxiliary member 12 attached to the support member 11. When the through hole forming step is performed before the auxiliary member attaching step, the support member 11 is temporarily placed on the structure 1 through the through hole 2a before the auxiliary member is attached, and the outer periphery of the support member 11 is temporarily placed. A line corresponding to the extension surface of the upper surface of the roof surface material 2 is marked on the surface. Then, the auxiliary member 12 is attached to the outer peripheral surface of the support member 11 along the marked line. As a result, when the end portion of the support column member 11 to which the first waterproof material 10 is attached is placed on the structure 1 with the end facing downward, the upper surface of the roof surface material 2 and the upper surface of the auxiliary member 12 are aligned with each other. Can be done.

In the insertion step, the support member 11 is inserted into the through hole 2a from above and placed on the structure 1 with one end of the support member 11 to which the first waterproof material 10 is attached facing downward. At the same time, it is a step of bringing the auxiliary member 12 into contact with the inner surface of the through hole 2a. In the insertion step, when the support column member 11 is inserted into the through hole 2a, the notch portion 11c is in a state of facing the eaves side, and the release paper on the lower surface of the first waterproof material 10 is peeled off. Further, in a state where the auxiliary member 12 is compressed toward the support member 11, the support member 11 is inserted into the through hole 2a, and then the compression is released to bring the auxiliary member 12 into contact with the inner surface of the through hole 2a. When the support column member 11 is placed on the structure 1, it is desirable that the reference portion 11b at the same portion as the notch portion 11c and the reference portion 11b on the opposite side are positioned on a straight line parallel to the inclination direction of the roof. According to this insertion step, since the support column member 11 is placed on the structure 1 with the notch portion 11c facing the eaves side, even if rainwater enters the inside of the support column member 11 for some reason, the notch portion 11c Can be discharged to the eaves side.

In the insertion step, a thread is stretched on a portion of the roof where the support member 11 (and by extension, the mounting member 16) is arranged, in at least one of the direction in which the roof is inclined and the direction orthogonal to the direction in which the roof is inclined. The strut member 11 may be placed on the structure 1 so that the corresponding reference portion 11b of the strut member 11 is aligned with the thread. Alternatively, a line extending in at least one of the inclination direction of the roof and the direction orthogonal to the inclination direction of the roof is marked on the upper surface of the roof surface material 2, and the support member 11 is lined with respect to the ruled line. The corresponding reference unit 11b may be matched. As a result, the support column member 11 (mounting member 16) can be fixed at a desired position on the roof with high accuracy.

The caulking step is a step of applying the caulking material over the entire outer circumference of the support member 11 so as to straddle the support member 11 and the roof surface material 2 above the auxiliary member 12. Specifically, in the caulking step, the caulking material 13 contained in the tube is applied without a gap over the entire circumference of the support column member 11 using the caulking gun 5 (see FIG. 5B). As a result, it is possible to prevent rainwater from entering below the roof surface material 2 through the through hole 2a and the support column member 11.

In the fixing step, a mounting member 16 to which the rooftop installation object 3 is mounted is placed on the upper end of the strut member 11 with a second waterproof material 14 in between, and the strut member 11 is penetrated from above the mounting member 16. This is a step of screwing the fixing screw 15 into the body 1 to fix it. Specifically, in the fixing step, first, in the sheet-shaped second waterproofing material 14, one side of the release paper attached to both sides is peeled off. Subsequently, the second waterproofing material 14 was attached to the mounting member 16 with the adhesive surface of the second waterproofing material 14 facing the entire surface between the pair of ridges 16c on the lower surface of the base portion 16a of the mounting member 16. Later, the release paper on the lower surface (remaining surface) of the second waterproof material 14 is peeled off. Then, the mounting member 16 is placed on the strut member 11 by aligning the identification line portion 16d with the two reference portions 11b located on the line orthogonal to the inclination direction of the roof in the strut member 11 (FIG. 6A). reference). After that, the fixing screw 15 is screwed into the structure 1 and tightened from above the mounting member 16 through the fixing hole 16b and the insertion hole 11e of the support column member 11 (see FIG. 6B). In this fixing step, the second waterproof material 14 may be attached to the upper surface of the support column member 11.

In this way, the mounting member 16 is fixed to the structure 1, and the above-mentioned fixed structure is constructed.

Then, with the head portion 4a of the root angle bolt 4 facing downward, the head portion 4a is inserted into the slot 16g of the mounting member 16, and the screw portion 4b is projected upward from between the pair of top wall portions 16f. Install the on-roof installation 3 on the roof.

As described above, according to the present embodiment, the through hole 2a is formed in the roof surface material 2, and the support member 11 is placed on the roof structure 1 through the through hole 2a from above. , It is not necessary to remove the roof surface material and replace it with a supporting roofing material having an opening. Therefore, it is not necessary to prepare many types of supporting roofing materials in advance, and by reducing the types of parts to be managed, parts management can be simplified and an increase in cost can be suppressed. Therefore, regardless of the shape and size of the roof surface material 2, the mounting member 16 can be fixed to the structure 1 and can be used for various existing roofs.

Further, since the through hole 2a of the roof surface material 2 can be formed in a short time by using a drill (core drill), it takes more time and effort to construct the roof surface material 2 as compared with the conventional case of substituting the support roof material. And time can be shortened, and the increase in cost can be suppressed.

Further, since the auxiliary member 12 having elasticity is brought into contact with the inner surface of the through hole 2a and the caulking material 13 is applied from above the auxiliary member 12, the auxiliary member 12 prevents the caulking material 13 from falling. The workability of the caulking process is good.

Further, in the waterproof treatment step, since the first waterproof material 10 is attached to the end of the support column member 11 on the side to be mounted on the structure 1, when the support column member 11 is placed on the structure 1 in the insertion step. The first waterproof material 10 makes it possible to make the strut member 11 less slippery with respect to the structure 1. Further, in the fixing step, since the mounting member 16 is placed on the support column member 11 with the second waterproof material 14 in between, the second waterproof material 14 makes it difficult for the mounting member 16 to slip with respect to the support column member 11. can do. Therefore, in the work on the inclined roof, it is not necessary for the operator to keep holding the support member 11 and the mounting member 16, and the workability is good.

Further, since the support column member 11 on which the mounting member 16 is placed is placed on the structure 1 through the through hole 2a of the roof surface material 2, the entire weight of the on-roof installation object 3 is applied to the roof surface material 2. It can be received by the structure 1 via the mounting member 16 and the support member 11, and the roof-mounted object 3 can be fixed to the roof with high strength.

Further, in a state where the first waterproof material 10 is interposed between the structure 1 and the support member 11, and the second waterproof material 14 is interposed between the support member 11 and the mounting member 16, the mounting member 16 is interposed. Since the fixing screw 15 is screwed into the structure 1 from above, the fixing screw 15 passes through the first waterproof material 10 and the second waterproof material 14, and rainwater enters the structure 1 side through the fixing screw 15. Can be prevented.

Further, in the present embodiment, since the support column member 11 with the notch portion 11c facing the eaves side is fixed to the structure 1 by the fixing screw 15 together with the mounting member 16, the weight of the on-roof installation object 3 or the like is used. When the strut member 11 tries to move toward the eaves due to the acting force in the eaves direction, the side surface of the fixing screw 15 is a portion on the inner peripheral surface of the insertion hole 11e on the ridge side, that is, a portion far from the notch 11c. Will come into contact with the roof, and a force in the direction of the ridge will act on the site. At this time, of the four fixing portions 11d of the support member 11, the two fixing portions 11d close to the notch portion 11c have a large wall thickness on the side (building side) far from the notch portion 11c with the insertion hole 11e in between. Because it is, it is hard to deform even if a force in the direction of the ridge acts. On the other hand, in the two fixed portions 11d far from the notch portion 11c, the portion connected to the main body portion 11a on the side surface close to the center line CL is more central than the parallel line PL of the center line CL passing through the center of each insertion hole 11e. Since it is closer to the line CL, the force in the ridge direction acts on the main body portion 11a more strongly than the fixed portion 11d. Therefore, even if a force acts on the strut member 11 in the eaves direction, the fixing portion 11d is not easily deformed, the movement of the strut member 11 to the eaves side can be suppressed, and the support member 11 is placed on the roof The installation object 3 can be fixed to the roof with high strength.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various improvements and design changes can be made without departing from the gist of the present invention. Is. In the following, parts having the same configuration are designated by the same reference numerals, and detailed description thereof will be omitted.

For example, in the above embodiment, the mounting member 16 having one slot 16g is shown, but the present invention is not limited to this, and as shown in FIG. 3B, two slots 16g are shown. The mounting member 16A may be used. The difference from the above embodiment is that the slots 16g are provided on the upper side of each of the pair of ridges 16c. Further, although not shown, the mounting member may have both a slot extending in the direction orthogonal to the inclination direction of the roof and a slot extending in the inclination direction of the roof. As a result, the position of the root angle bolt for mounting the on-roof installation can be slid in the direction of inclination of the roof.

Further, in the above embodiment, the first waterproof material 10 and the second waterproof material 14 are shown in the form of a sheet, but the present invention is not limited to this, and a semi-kneaded material may be used. Further, in the above embodiment, the auxiliary member 12 is attached over the entire outer circumference of the support member 11, but the present invention is not limited to this, and the auxiliary member 12 is attached to the entire circumference of the support member 11. On the other hand, it may be pasted in places. That is, the auxiliary member 12 may be attached so as to have a gap such that the caulking material 13 does not fall.

Further, in the above embodiment, one mounting member 16 is fixed to the structure 1 by one support member 11, but the present invention is not limited to this, and as shown in FIGS. 7 to 9. In addition, one mounting member 22 may be fixed to the structure 1 by a plurality of (here, four) strut members 21. The strut member 21 is a pipe having an inner diameter through which the threaded portion of the fixing screw 15 can pass.

The mounting member 22 has a rectangular and flat base portion 22a and four fixing holes 22b that penetrate the base portion 22a and insert the fixing screws 15. Further, the mounting member 22 includes a pair of flat plate-shaped ridges 22c protruding downward in parallel with the short side of the base portion 22a from a portion inside the four fixing holes 22b in the base portion 22a, and the base portion 22a. It has three slots 22d, which are parallel to the short side of the. The three slots 22d are provided in a portion along the pair of short sides of the base portion 22a and a portion in the middle of the pair of short sides.

Each slot 22d has a pair of flat plate-shaped lower wall portions 22e projecting downward from the base portion 22a, and a pair of flat plate-shaped bottom wall portions 22f connecting the lower sides of the pair of lower wall portions 22e. It is composed of an opening 22g penetrating the base portion 22a in the middle of the lower wall portion 22e.

The distance between the slot 22d at the short side of the base portion 22a and the closer ridge portion 22c is larger than the outer diameter of the strut member 21. A fixing hole 22b is formed in a portion between the slot 22d on the short side of the base portion 22a and the ridge portion 22c on the closer side.

In the construction method of fixing the mounting member 22 to the structure 1 using the four strut members 21, the first waterproof material 10 and the second waterproof material 14 are attached to both ends of the strut member 21 in the waterproof treatment step. A point (see FIG. 7) and a point at which four through holes 2a are formed at positions corresponding to the four fixing holes 22b of the mounting member 22 in the roof surface material 2 in the through hole forming step (see FIG. 8). Except for, the construction method of the above embodiment is the same. Also by this construction method, a fixed structure similar to the above can be constructed, and the same action and effect as described above can be obtained.

1 Structure 2 Roof surface material 2a Through hole 3 Roof-mounted object 4 Root angle bolt 10 First waterproof material 11 Strut member 12 Auxiliary member 13 Caulking material 14 Second waterproof material 15 Fixing screw 16 Mounting member 16A Mounting member 16g Slot 21 Strut Member 22 Mounting member 22d Slot

Claims (2)

A waterproofing process in which the first waterproofing material is attached to one end of a tubular strut member that is longer than the height from the roof structure to the upper surface of the roof surface material thatched on the structure.
When one end of the support member is placed on the structure with one end facing downward, an elastic auxiliary member is attached to the outer peripheral surface of the support member so as to coincide with the upper surface of the roof surface material. Auxiliary member pasting process and
A through hole forming step of forming a through hole in the roof surface material, which is larger than the outer circumference of the support member and smaller than the outer circumference of the auxiliary member attached to the outer circumference of the support member.
With the one end of the support member to which the first waterproof material is attached facing downward, the support member is inserted into the through hole from above and placed on the structure, and the auxiliary An insertion step of bringing the member into contact with the inner surface of the through hole,
A caulking step of applying a caulking material over the entire outer periphery of the support member so as to straddle the support member and the roof surface material above the auxiliary member.
A mounting member to which an object to be installed on the roof is mounted is placed on the upper end of the strut member with a second waterproof material in between, and the strut member is penetrated from above the mounting member and a fixing screw is screwed into the structure. A method of constructing a mounting member for mounting an on-roof installation object, which comprises a fixing process of fixing with. A roof surface material that is roofed over the roof structure and has through holes that penetrate vertically,
A tubular strut member whose lower end is in contact with the upper surface of the roof structure with the first waterproof material in between, and whose upper end projects upward from the upper surface of the roof surface material through the through hole.
An elastic auxiliary member interposed between the outer peripheral surface of the support column member and the inner peripheral surface of the through hole in a compressed state, and
A caulking material applied over the entire outer circumference of the support member so as to straddle the support member and the roof surface material above the auxiliary member.
With the second waterproof material in between and in contact with the upper end of the support member, it is fixed by a fixing screw that penetrates the support member from above and is screwed into the roof structure, and is installed on the roof. A fixed structure of a mounting member for mounting an on-roof installation, which comprises a mounting member on which an object is mounted.

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