JP5047754B2 - Construction method of roof chimney penetration and waterproof structure of roof chimney penetration - Google Patents

Description

  The present invention relates to a construction method for a roof chimney penetrating part and a waterproof structure of the roof chimney penetrating part, and in particular, roof chimney penetration for preventing rainwater from entering the indoor through an opening penetrating the roof where the chimney is inclined. The construction method of a part and the waterproof structure of the roof chimney penetration part formed by this.

  There are two types of construction methods for guiding chimneys (flues) extended from a combustion device such as a stove to the outside, a wall removal method that penetrates a vertical wall and a roof removal method that penetrates a roof. Among them, the roof removal method has a merit that ignition and combustion are smoothly performed due to a draft effect due to a suction action, and has been widely used conventionally. However, in the case of this roof removal method, rain leakage is likely to occur from the roof opening that penetrates the chimney, and therefore, it is necessary to provide a waterproof structure more sufficient than the wall removal method in construction.

  FIG. 6: has shown the longitudinal cross-sectional view of the waterproof structure by the construction method of such a conventional roof chimney penetration part. A flat water guide plate 41 is provided in the base plate 10 provided with a waterproof sheet (waterproof paper) 11 on the upper surface, with an opening 12 for passing the chimney 50 cut out, and disposed substantially parallel to the inclined roof surface. And a draining member (flushing) 40 constituted by a cylindrical peripheral wall 42 that rises in a truncated cone shape from the peripheral edge portion of the hole that is notched in the center and is open at the upper end side, thereby disposing from the opening 12. It is designed to prevent rain leaks.

  The draining member 40 has the roof finishing material 17 such as a tile placed on the upper surface of the ridge side (the higher side) while the chimney 50 penetrating the roof is inserted through the insertion hole 43 inside the peripheral wall 42, It is arranged so that the side (lower side) part is placed on the roof finishing material 17, and rainwater flowing down from the building side (upstream) on the inclined roof is received by the upper surface of the water guide plate 41, and the chimney 50 passes through the peripheral wall 42. The function of preventing the occurrence of rain leakage from the opening 12 through which the chimney 50 passes is exhibited by guiding it to the upper surface of the roof finishing material 17 on the eaves side (downstream side) while detouring the portion to be performed.

  However, even in such a waterproof structure using the draining member 40, when a strong wind is applied to the rain as in the case of a typhoon, water blows from the lower end side of the roof finishing material 17 along its back surface. There is a problem that water that has entered under the roof finishing material 17 flows down on the waterproof sheet 11 and enters the indoors through the opening 12 to cause rain leakage.

  In response to this problem, Japanese Patent Application Laid-Open No. 6-15118 discloses that a lower part of a projecting part such as a chimney projecting from a roof surface is covered with a cylindrical draining member, and that the draining member rises along the outer periphery of the lower part of the projecting object. It consists of a piece and a horizontal piece along the roof surface protruding from the lower end of the rising piece. A waterproof cushioning material is provided on the lower surface of the horizontal piece, and between the horizontal piece and the roof surface (upper surface of the waterproof sheet). A technique has been proposed in which the waterproof performance is improved by interposing in a compressed state together with measures against water that has entered under the roof finishing material.

  However, with this method of simply sandwiching the cushioning material and preventing the intrusion of water flowing on the top surface of the waterproof sheet, the cushioning material loses its elasticity due to deterioration over time and the waterproofness is reduced, resulting in uniform waterproofing. The function cannot be demonstrated. For this reason, it is practically difficult to clear the 10-year rain leak guarantee that is required for contractors by building laws.

Alternatively, in the formation of the waterproof structure of the roof chimney penetration part, it is possible to enhance the waterproof function by combining a number of precision waterproofing members or adding multiple precise sealing processes, but in a short period of time and at low cost It is a measure that is difficult to adopt because it requires excessive labor and excessive cost to construct the roof chimney penetration that is required to be completed. Therefore, it has been desired to develop a technology that can be easily constructed and can exhibit an excellent waterproof function at low cost over a long period of time.
JP-A-6-15118

  The present invention is intended to solve the above-described problems. When a chimney is constructed by a roof removal method, an excellent waterproof function is provided over a long period of time without requiring excessive labor and excessive cost. Let it be a subject to be able to demonstrate over.

  Therefore, the present invention is a method for constructing a roof chimney penetrating part that forms a waterproof structure for preventing rain leakage by fixing the chimney through an opening provided in the roof and covering the opening with a predetermined draining means. The water draining means is arranged substantially parallel to the roof surface, receives water flowing on the upper surface of the roof finishing material on the upstream side and guides it to the upper surface of the roof finishing material on the downstream side, and the cutting provided on the water guiding plate. An external draining member having a cylindrical peripheral wall that covers the periphery of the chimney that rises from the peripheral edge of the notch hole and protrudes from the opening, and has a size that covers at least the entire opening, and an upper surface of the field plate around the opening or a waterproof sheet A fixed plate arranged with the lower surface edge side in close contact with the upper surface, and an external drainer while covering the periphery of the chimney rising from the notch hole peripheral portion provided in the fixed plate up to a predetermined height An internal draining member having a cylindrical peripheral wall inserted inside the peripheral wall and disposed below the external draining member, and the internal draining member includes a lower surface of the fixed plate and an upper surface of the field plate around the opening or waterproofing The liquid flow between the upper surface of the sheet is fixed in a sealed state and water on the waterproof sheet is prevented from entering the opening.

  In this way, the draining means forming the waterproof structure is divided into two members for external and internal use, and rainwater flowing on the top surface of the roof finishing material is prevented from entering through the opening of the roof by the external draining member (outer flushing). In addition, rain water flowing on the top surface of the waterproof sheet enters the roof opening by arranging an internal draining member (inner flushing) so that the opening is covered directly and liquid-tightly with a fixed plate. Can be effectively prevented.

  In addition, the fixing of the internal draining member includes a procedure of applying a waterproof tape along the outer periphery of the fixing plate so as to cover the upper surface edge side of the fixing plate and the surrounding top surface of the surrounding plate or the upper surface of the waterproof sheet from above. Then, it is fixed by an extremely simple procedure, and an excellent waterproof function can be exhibited over a long period of time.

  Furthermore, in the construction method of the roof chimney penetration portion described above, a sealing agent or an adhesive is applied between the lower surface of the fixing plate and the upper surface of the base plate or the waterproof sheet around the roof opening for fixing the internal draining member. If it includes a procedure for closely adhering in a state where it is interposed, it will exhibit even better waterproof function, especially when both waterproof tape and sealing agent are provided, the waterproof means is doubled and extremely An excellent waterproof function and excellent durability can be expected.

  Furthermore, in the waterproof structure of the roof chimney penetrating portion that includes a predetermined draining means for covering the opening of the roof through which the chimney passes and forms a waterproof structure for preventing rain leakage, the upstream structure is disposed substantially parallel to the roof surface. Around the chimney that protrudes from the opening part that rises from the peripheral part of the notch hole provided in the water guide plate that receives water flowing on the top surface of the roof finish material and guides it to the upper surface of the roof finish material on the downstream side An external draining member having a cylindrical peripheral wall that covers up to a predetermined height, and a fixing plate that has a size that covers at least the entire opening, and is disposed in close contact with the upper surface of the field plate or the top surface of the waterproof sheet around the opening. And an inner part having a cylindrical peripheral wall inserted inside the peripheral wall of the external draining member while covering the periphery of the chimney rising up from the peripheral part of the notch hole provided in the fixing plate and penetrating through the chimney The internal draining member is fixed in a state that seals the flow of liquid between the lower surface of the fixed plate and the upper surface of the field plate or the upper surface of the waterproof sheet around the opening. If water is prevented from entering the opening, it is easily formed with a simple configuration and exhibits an excellent waterproof function.

  In this case, if the internal draining member is attached with waterproof tape along the outer periphery of the fixing plate so as to cover the upper edge of the fixing plate upper surface and the surrounding upper surface of the base plate or the upper surface of the waterproof sheet, The internal draining member is fixed very easily, and an excellent waterproof function can be exhibited over a long period of time.

  In addition, in these waterproof structures, the internal draining member is closely fixed to the bottom surface of the fixing plate between the top surface of the base plate or the top surface of the waterproof sheet around the opening with a sealing agent or adhesive interposed. If this is the case, the waterproof function will be further improved. Especially, when both the waterproof tape and the sealing agent or adhesive are provided, the waterproof means will be doubled, so the waterproof function is extremely excellent. Will be demonstrated.

  According to the present invention, the draining means is divided into two members for external use and internal use, and the fixing plate for the internal draining member is fixed in close contact with the base plate or the waterproof sheet. Thus, an excellent waterproof function can be exhibited over a long period of time without requiring a high cost.

  The best mode for carrying out the present invention will be described below with reference to the drawings. In the present invention, in addition to the chimney extended from the combustion device, the chimney is inserted into the chimney to buffer or insulate the high temperature, and a holding cylinder for holding and inserting the chimney. A cylindrical body is also included. Further, the close contact of the members includes not only the case where the two members are brought into direct contact with each other, but also the case where the filler is thinly interposed between the two members so that no gap is generated.

  FIG. 1 is a longitudinal sectional view showing a waterproof structure formed by the construction method of the roof chimney penetration part of the present embodiment. In this waterproof structure, when a chimney (chimney) 50 extending from a combustion device such as a stove installed indoors is constructed by a roof removal method, it leaks from the opening 12 through which the chimney 50 passes through an inclined roof. The purpose is to prevent this from occurring.

  As shown in FIG. 1, the roof of a general house is a field board 10 supported by rafters (not shown), a waterproof sheet 11 disposed thereon, and a plurality of roof finishes laid down thereon. It consists of the material (tile) 17, and these form the structure which prevents that rainwater permeates indoors.

  And when constructing so that the chimney 50 may penetrate this roof, after opening the predetermined-shaped opening part 12 in the field board 10 and the waterproof sheet 11, and providing on the roof finishing material 17 toward the eaves side from the ridge side The external draining member 30 provided with the water guide plate 31 and the peripheral wall 32 is arranged so that the rain water flowing down flows around the chimney 50 penetrating portion, which is the same as the conventional example shown in FIG. .

  However, as described above, it is not possible to prevent rain leakage due to the water that enters the lower side of the roof finishing material 17 and flows on the upper surface of the waterproof sheet 11 entering the opening 12 only with the external draining member 30. Therefore, in the present invention, the lower frustoconical peripheral wall 22 is inserted into the frustoconical peripheral wall 32 below the external draining member 30, and the upper surface of the base plate 10 or the waterproof sheet 11 around the opening 12 is inserted. The fixing plate 21 having a size that can completely cover the opening 12 is fixed to the internal draining member 20 in a state in which the lower edge of the fixing plate 21 is in close contact, and water flowing on the upper surface of the waterproof sheet 11 enters the indoor from the opening 12. The feature is to prevent intrusion.

  In the present embodiment, the case where the fixing plate 21 of the internal draining member 20 is fixed to the upper surface of the waterproof sheet 11 will be described. In this fixing, the lower surface of the fixing plate 21 and the upper surface of the waterproof sheet 11 around the opening 12 are described. And by interposing the paste-like sealing agent 14 applied between them, the adhesiveness is improved and moisture is prevented from entering the inside of the opening 12 (indoors) from the lower surface side of the fixing plate 21, The durability of the waterproof structure is ensured.

  In addition to this, the waterproof tape 15 is applied over the entire circumference (four sides) along the outer periphery of the fixing plate 21 so as to cover the upper edge of the fixing plate 21 and the upper surface of the surrounding waterproof sheet 11 from above. As a result, the internal draining member 20 is more firmly fixed, and the waterproof means for the water flowing on the waterproof sheet 11 is doubled, further improving the reliability and durability of the waterproof function. It has become a thing.

  2 shows a perspective view of the external draining member 30 and the internal draining member 20 used as a pair of parts in the construction method of the roof chimney penetrating portion of the present embodiment, and FIG. 3 shows these side views. Show. The external draining member 30 is composed of a rectangular and flat water guide plate 31 and a circular frustoconical peripheral wall 32 which rises from the peripheral portion of a notch hole opened at the substantially central portion thereof and opens at the upper end side.

  The inside of the peripheral wall 32 forms an insertion hole 33 through which the chimney 50 is inserted. As shown in the side view of FIG. 3, the water guide plate 31 is disposed substantially parallel to the inclined roof. The peripheral wall 32 is provided in a state where the central axis of the insertion hole 33 is inclined with respect to the water guide plate 31 because the chimney 50 is arranged vertically.

  For the production of the external draining member 30, it is preferable to use a material having water resistance and weather resistance and strong against rust. For example, a stainless steel plate or the like is suitable. However, in the case where the roof finishing material 17 is a tile having large unevenness on the upper surface, a flexible metal material such as a lead plate that is excellent in plastic deformability and easy to process due to the deformation of the water guide plate 31 according to the unevenness. Is preferred.

  On the other hand, the internal draining member 20 has a configuration substantially similar to that of the external draining member 30 described above, and includes a fixing plate 21 corresponding to the water guide plate 31 and a peripheral wall 22, and an insertion for inserting the chimney 50 inside the peripheral wall 22. A hole 23 is formed. In this case, since the peripheral wall 22 only has to bypass a relatively small amount of water flowing on the upper surface of the waterproof sheet 11, the peripheral wall 22 has a size that is lower than the peripheral wall 32 of the external draining member 30 and can be inserted into the peripheral wall 32.

  The material of the internal draining member 20 is not particularly limited as long as it has water resistance and waterproofness. However, since it is not exposed to the outside, the weather resistance as much as the external draining member 30 is not necessary. Therefore, a material such as plastic may be used in addition to the metal plate, or an aluminum thin plate that is easy to process and low in cost may be used.

  Next, the procedure of the construction method of the roof chimney penetration part which is this Embodiment is demonstrated in detail. With reference to the perspective view of FIG. 4 (A) and the longitudinal cross-sectional view of FIG. 5 (A), first, the field board 10 and the waterproof sheet 11 are cut off at a predetermined chimney penetration position on the sloped roof to have a predetermined size. An opening 12 is provided, and a chimney 50 is inserted into the opening 12 and fixed to the roof side with the fixing bracket 13. Then, a sealing agent (caulking agent) 14 is applied to the upper surface of the waterproof sheet around the opening 12 to be described later. It is applied in accordance with the shape of the fixed plate 21.

  Next, as shown in the longitudinal cross-sectional view of FIG. 5B, the internal draining member 20 is arranged so that the fixing plate 21 matches the application shape of the sealing agent 14, and in an intimate state due to the adhesive force of the sealing agent 14. Bonding and fixing are performed so that water does not flow between the lower surface of the fixing plate 21 and the upper surface of the waterproof sheet 11.

  Furthermore, as shown in the perspective view of FIG. 4 (B) and the longitudinal sectional view of FIG. 5 (C), so as to cover the width of the rectangular fixing plate 21 from the upper surface edge side to the upper surface of the surrounding waterproof sheet 11, The waterproof tape 15 is attached along the outer periphery of the fixed plate 21 over the entire periphery. Thus, by providing the double waterproof means of the sealing agent 14 and the waterproof tape 15, it becomes possible to reliably avoid the water flowing on the waterproof sheet 11 from entering the indoor through the opening 12. In addition, the durability as a waterproof structure is greatly improved.

  And if the internal draining member 20 is fixed, as shown to the longitudinal cross-sectional view of FIG.5 (D), the external draining member 30 will be covered from on it. In this case, the eaves side portion of the water guide plate 31 is placed on the roof finishing material 17 such as a tile, and the ridge side portion of the water guide plate 31 is placed on the fixing plate 21 and the waterproof sheet 11 of the internal draining member 20. In this state, the roof finishing material 17 is placed thereon. Thereby, the water flowing down the upper surface of the roof finishing material 17 on the upstream side is smoothly guided to the upper surface of the roof finishing material 17 on the downstream side.

  What was completed by the construction method of the roof chimney penetration part of such a procedure is the waterproof structure of the roof chimney penetration part of this invention shown in the longitudinal cross-sectional view of FIG. As described above, this waterproof structure is completed in a short period of time by using a relatively simple procedure while using parts with a relatively simple structure, so that it does not require excessive labor and excessive cost in construction. It is characterized by.

  In addition, the newly disposed internal draining member 20, which is a dedicated component for preventing water on the waterproof sheet 11 from entering the opening 12, is excellent for water entering under the roof finishing material 17. It became the one that demonstrated its responsiveness. In addition to this, in fixing the fixing plate 21, by providing double waterproof means of the sealing agent 14 and the waterproof seal 15, the adhesion (sealing property) of the fixing plate 21 to the waterproof sheet 11 side is improved. It became extremely high and realized an excellent waterproof function, and the durability of the waterproof function itself can be secured for a long time.

  In the present embodiment, the case where the internal draining member 20 is disposed by closely attaching and fixing the lower surface of the fixing plate 21 to the upper surface of the waterproof sheet 11 has been described. However, the internal draining member 20 is adhered to the upper surface of the base plate 10. It can be carried out even if fixed. In this case, the waterproof sheet 11 may be placed on the upper surface of the fixed plate 21, and the edge side of the waterproof sheet 11 placed on the fixed plate 21 may be fixed to the fixed plate 21 with the waterproof tape 15.

  Moreover, although the case where the sealing agent 14 was used for close_contact | adherence and fixation of the internal draining member 20 was demonstrated, you may use an adhesive agent instead of a sealing agent as long as sealing performance and durability can be ensured. Furthermore, the present invention can be applied to the construction of a horizontal roof in addition to the construction of an inclined roof as described above, and the same effect can be exhibited.

  As described above, when the chimney is constructed by the roof removal method, the present invention can exhibit an excellent waterproof function over a long period of time without requiring excessive labor and excessive cost. .

The longitudinal cross-sectional view which shows the waterproof structure by the construction method of embodiment of this invention. The perspective view of the draining member used in the construction method for forming the waterproof structure of FIG. The side view of the draining member of FIG. (A), (B) is a perspective view for demonstrating the procedure of the construction method for forming the waterproof structure of FIG. (A), (B), (C), (D) is a longitudinal cross-sectional view for demonstrating the procedure of the construction method for forming the waterproof structure of FIG. The longitudinal cross-sectional view of the waterproof structure by the construction method of a prior art example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Base plate, 11 Waterproof sheet, 12 Opening part, 13 Fixing bracket, 14 Sealing member, 15 Waterproof tape, 17 Roof finishing material, 20 Internal draining member, 21 Fixing plate, 22, 32 Perimeter wall, 23,33 Insertion hole, 30 External drainer, 31 water guide plate, 50 chimney

Claims (6)

In the construction method of the roof chimney penetrating part forming a waterproof structure for preventing rain leakage by fixing the chimney by passing through the opening provided in the roof and covering the opening with a predetermined draining means,
The draining means is arranged substantially parallel to the roof surface, receives water flowing on the upper surface of the roof finishing material on the upstream side, and guides it to the upper surface of the roof finishing material on the downstream side, and a notch provided in the water guiding plate An external draining member having a cylindrical peripheral wall that rises from the peripheral edge of the hole and protrudes from the opening to cover the periphery of the chimney to a predetermined height, and a top surface of the ground plate around the opening having a size that covers at least the entire opening Or a fixed plate arranged with the lower surface edge side in close contact with the top surface of the waterproof sheet, and the inside of the peripheral wall of the external draining member while covering the periphery of the chimney rising from the notch hole peripheral portion provided in the fixed plate to a predetermined height And an internal draining member disposed below the external draining member, the internal draining member being connected to the lower surface of the fixing plate and the periphery of the opening. A roof chimney penetrating through the roof chimney, characterized in that the liquid flow between the top surface of the base plate or the top surface of the waterproof sheet is fixed in a sealed state and water on the waterproof sheet is prevented from entering the opening. Construction method.   For fixing the internal draining member, a waterproof tape is applied along the outer periphery of the fixed plate so as to cover the upper surface edge side of the fixed plate and the top surface of the field plate or the upper surface of the waterproof sheet around the edge. The construction method of the roof chimney penetration part according to claim 1 including a procedure.   The fixing of the internal draining member includes a procedure in which a sealing agent or an adhesive is applied and adhered between the lower surface of the fixing plate and the upper surface of the base plate or the waterproof sheet around the opening. The construction method of the roof chimney penetration part according to claim 1 or 2 characterized by things. In the waterproof structure of the roof chimney penetrating part that forms a waterproof structure for preventing rain leakage by providing a predetermined draining means that covers the opening of the roof through which the chimney passes,
A water guide plate that is arranged substantially parallel to the roof surface and receives water flowing on the upper surface of the roof finishing material on the upstream side and guides it to the upper surface of the roof finishing material on the downstream side, and rises from the peripheral portion of the notch hole provided in the water guide plate An external draining member having a cylindrical peripheral wall that covers the periphery of the chimney protruding from the opening to a predetermined height, and having a size that covers at least the entire opening, and an upper surface of a field plate or the waterproof sheet around the opening. A fixed plate arranged in close contact with the lower surface edge side, and a cylinder inserted inside the peripheral wall of the external draining member while covering the periphery of the chimney rising from the notch hole peripheral portion provided in the fixed plate to a predetermined height An internal draining member having a circular peripheral wall, and the internal draining member seals the flow of liquid between the lower surface of the fixed plate and the upper surface of the base plate or the waterproof sheet around the opening. Is fixed as a state of the water on the waterproof sheet is prevented from entering the opening, waterproof roof chimney penetrating portion, characterized in that.   The internal draining member is attached with a waterproof tape along the outer periphery of the fixing plate so as to cover the upper surface edge side of the fixing plate and the upper surface of the base plate or the waterproof sheet upper surface around the edge. The waterproof structure of the roof chimney penetration part according to claim 4 characterized by the above-mentioned.   5. The internal draining member is characterized in that the lower surface of the fixed plate is in close contact with the upper surface of the base plate or the upper surface of the waterproof sheet around the opening with a sealing agent or an adhesive interposed. Or the waterproof structure of the chimney penetration part described in 5.

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