JP5626979B2 - Roof structure - Google Patents

Description

  The present invention relates to a roof structure that can suppress flooding of a field board or a hut and improve durability.

  12 (a) and 12 (b) show a conventional roof structure a. The roof structure a includes a field board b supported by a rafter m, a waterproof sheet layer c laid on the field board b, and fixed on the waterproof sheet layer c and orthogonal to the flow direction of the roof. It includes a long horizontal beam d extending in the direction, a roof tile e to which the locking portion e1 is hooked and locked to the horizontal beam d, and a fixing tool f for fixing the roof tile e to the horizontal beam d.

  The horizontal beam d of the roof structure a is fixed to the waterproof sheet layer c through, for example, a vertical beam h extending along the flow direction, so that the drainage flow in the direction intersecting the horizontal beam d between the vertical beams h. A path g is provided. Such a drainage channel g discharges rainwater that has entered from the gaps between the tiles e to the eaves using the slope of the roof.

  Further, the fixing tool f is attached by penetrating from the insertion hole e2 provided in the roof tile e to the waterproof sheet layer c. As the waterproof sheet layer c, for example, asphalt roofing having relatively flexibility is employed. For this reason, even after the waterproof sheet layer c is penetrated by the fixing tool f, the waterproof sheet layer c adheres flexibly to the fixing tool f and maintains a certain watertightness.

  Since the positional relationship between the insertion hole e2 of the roof tile e and the vertical rail h is not fixed in the fixing tool f, at least a part of the plurality of fixing tools f is the waterproof sheet layer c in which the drainage flow path g is formed. It is fixed through. Related documents include the following (see Patent Document 1 below).

JP 2007-177605 A

  However, in the fixing tool f that penetrates the waterproof sheet layer c in which the drainage flow path g is formed, the portion k exposed in the drainage flow path g cannot exhibit a sufficient fastening force. For this reason, this fixing tool f cannot demonstrate sufficient resistance with respect to what is called a blowing force by which the roof tile e is pushed up by a typhoon or an earthquake, for example, between the fixing tool f and the waterproof sheet layer c. The gap i is likely to be generated.

  In addition, a gap i is likely to be generated between the fixing tool f and the waterproof sheet layer c due to thermal deterioration of the waterproof sheet layer c due to solar heat or the like transmitted from the fixing tool f or due to aging of the waterproof sheet layer c. Such a gap i causes the watertightness between the fixing tool f and the waterproof sheet layer c to be lost, and rainwater flowing through the drainage flow path g penetrates the fixing tool f and enters the base plate b and the back of the hut, There was a problem that the durability of the roof structure a was lowered due to decay of b and the back of the shed.

  The present invention has been devised in view of the actual situation as described above, and by fixing the cross rail to the waterproof sheet layer via the support member, the drainage flow in the direction intersecting the horizontal cross between the support members. A path is provided, and the fixing tool is basically penetrated from the insertion hole provided in the roof tile through the roof tile, the side rail, the support member, and the waterproof sheet layer. The main purpose is to provide a roof structure and its construction method that can suppress flooding and improve durability.

The invention according to claim 1 is a field plate supported by rafters, a waterproof sheet layer laid on the field plate, and fixed on the waterproof sheet layer and orthogonal to the flow direction of the roof. A roof structure having at least one tile roof surface including a long horizontal rail extending in a direction to be held, a tile to which a locking portion is hooked and locked to the horizontal rail, and a fixing tool for fixing the tile to the horizontal rail The horizontal rail is fixed to the waterproof sheet layer via a support member, so that a drainage channel is formed between the support members in a direction intersecting with the horizontal rail, and the fixing tool is The roof tile, the crosspiece, the support member, and the waterproof sheet layer are continuously penetrated from the insertion hole provided in the roof tile without passing through the drainage flow path .

  According to a second aspect of the present invention, in the roof structure according to the first aspect of the present invention, the support member is composed of a vertical beam that is elongated along the flow direction and is spaced apart in the longitudinal direction of the horizontal beam. is there.

  Moreover, invention of Claim 3 is a roof structure of Claim 1 which the said supporting member consists of a block-shaped protrusion body which protrudes from the lower surface of the said horizontal rail to the waterproof sheet layer side.

  The invention according to claim 4 is the roof structure according to claim 3, wherein the projecting body terminates at both ends in the width direction of the horizontal rail.

  The invention according to claim 5 is the roof structure according to claim 3 or 4, wherein the protruding body is provided separately from or integrally with the horizontal rail.

  The roof according to any one of claims 1 to 5, wherein a waterproof sheet layer or a sealing material different from the waterproof sheet layer is disposed on the lower surface of the support member. Structure.

  Further, in the invention according to claim 7, the tile roof surface has an intermediate position in the width direction as a reference position where one side edge of the tile in the width direction coincides when the tile is arranged, and the support member is , A first position in which a distance L2 between the one side edge of the roof tile and the insertion hole through which the fixing tool is inserted is separated from the reference position to one side, and a working width L1 of the roof tile and the distance L2 The distance of the difference (L1-L2) is arranged at a second position separated from the reference position to the other side, and from the first position to one side and / or from the second position to the other side. The roof structure according to any one of claims 1 to 6, wherein the roof structure is provided at intervals of the working width L1.

  In the invention according to claim 8, the roof tiles are arranged in a staggered pattern, and the support member is also in a third position which is an intermediate position between the first position and the second position. The roof structure according to claim 7, wherein the roof structure is arranged at a distance of the working width L1 from the third position to one side and / or the other side.

  The roof structure of the present invention includes a field board supported by a rafter, a waterproof sheet layer laid on the field sheet, and a length that is fixed on the waterproof sheet layer and extends in a direction perpendicular to the flow direction of the roof. It has at least one tile roof surface including a horizontal rail, a tile to which a locking portion is hooked and locked to the horizontal rail, and a fixing tool for fixing the tile to the horizontal rail. In addition, the horizontal rail is fixed to the waterproof sheet layer via a support member, so that a drainage channel is formed between the support members in a direction intersecting with the horizontal rail.

  The fixing tool continuously penetrates the roof tile, the horizontal rail, the support member, and the waterproof sheet layer from the insertion hole provided in the roof tile. Since such a fixing tool can exhibit a sufficient fastening force without being exposed in the drainage flow path, it can exhibit a sufficient resistance against a typhoon or a blowing force caused by an earthquake. Therefore, the roof structure can prevent a gap from being formed between the fixing tool and the waterproof sheet layer, and can suppress the flooding of the field board and the back of the hut, thereby improving the durability.

  In addition, the support member is in close contact with the waterproof sheet layer by the fastening force of the fixing tool, and rain water can be prevented from entering between the support member and the waterproof sheet layer. Therefore, the roof structure can suppress the intrusion of rainwater into the field plate or the back of the shed even if a gap is generated between the fixing tool and the waterproof sheet layer due to, for example, thermal deterioration of the waterproof sheet layer due to solar heat or the like. Durability can be improved. Furthermore, since the fixing tool does not penetrate the drainage channel, it is possible to reliably prevent rainwater flowing through the drainage channel from entering the base plate or the back of the shed through the fixing tool.

It is a perspective view which shows the house where the roof structure of this invention was used. It is sectional drawing of a roof structure. It is an expanded sectional view of FIG. It is a perspective view of a roof tile. FIG. 4 is an AA end view of FIG. 3. (A) is a perspective view which shows the supporting member of other embodiment, (b) is a perspective view which shows the supporting member of other embodiment. It is a top view which shows a tile roof surface. It is a top view explaining the positional relationship of the 1st penetration hole and a support member. It is a top view which shows the roof structure where a tile is arrange | positioned in zigzag form. It is a top view which shows the roof structure of other embodiment. It is a top view which shows the roof structure of other embodiment. (A) is sectional drawing which shows the conventional roof structure, (b) is a zz end elevation of (a).

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the roof structure 1 of the present embodiment is used in a general house, and tiles 6 having a substantially rectangular shape in plan view are arranged in a staggered manner.

As shown in FIG. 2, the roof structure 1 includes a field plate 3 supported by a rafter 2, a waterproof sheet layer 4 laid on the field plate 3, and fixed on the waterproof sheet layer 4. And at least a long horizontal beam 5 extending in a direction perpendicular to the flow direction F of the roof, a tile 6 locked to the horizontal beam 5, and a fixing tool 7 for fixing the tile 6 to the horizontal beam 5. It has one tile roof surface 1s .

  The rafter 2 is attached to a roof beam 11 made of a steel material such as I-shaped steel or H-shaped steel via a fixing bracket 12 and has a gradient descending from the ridge side toward the eaves side. In addition, the eaves rod 15 is fixed to the rafter 2 via the nose plate base material 13 and the nose plate 14 at the end of the eaves side.

  The base plate 3 is fixed along the gradient of the rafter 2 and is disposed so as to protrude from the nose plate 14 to the eaves side. Further, for example, a high-strength structural plywood is used as the base plate 3, and an eaves tip draining plate 16 that is inclined toward the eaves wall 15 is provided at an end portion on the eaves side.

  The waterproof sheet layer 4 is laid on the base plate 3 from the eave side to the ridge side in a direction perpendicular to the flow direction F of the roof. The waterproof sheet layer 4 is preferably made of asphalt roofing or moisture-permeable waterproof sheet that is excellent in waterproofness and flexibility.

  The horizontal bars 5 are spaced apart in the flow direction F of the roof. As shown in an enlarged view in FIG. 3, the horizontal rail 5 is formed, for example, in a substantially rectangular cross section having a thickness W1 of about 10 to 20 mm and a width W2 of about 25 to 35 mm.

  As shown in FIG. 4, the roof tile 6 is a thin plate having a roof main body 6A formed in a substantially rectangular plate shape in plan view and a step on one side edge 6t1 in the width direction of the roof tile body 6A. A continuous insertion portion 6B is provided.

  As shown in FIGS. 3 and 4, the roof tile main body 6 </ b> A is provided with a locking portion 6 </ b> Aa that protrudes with a small length on the lower surface on the ridge side. The locking portion 6Aa can be hooked on a corner portion on the ridge side of the horizontal rail 5 to lock the roof tile 6. Further, an insertion hole 17 through which the fixing tool 7 is inserted is provided on the ridge side of the tile main body 6A. The insertion hole 17 of the present embodiment includes a first insertion hole 17A formed on the other side edge 6t2 side and a second insertion hole 17B formed on the one side edge 6t1 side. Below these insertion holes 17A and 17B, a horizontal rail 5 on which the locking portion 6Aa is hooked is disposed.

  Further, a lower protrusion 6Ab that protrudes with a small length is provided on the lower surface of the roof side of the roof tile body 6A. The lower protrusion 6Ab can prevent rainwater from entering by being in close contact with the surface of the tile 6 adjacent in the flow direction F. Furthermore, the lower protrusion 6Ab can more effectively prevent intrusion of rainwater by forming a gap between the tiles 6 adjacent to each other in the flow direction F and disposing a water return (not shown) in the gap. .

  The said insertion part 6B is overlaid on lower surface 6Ac of the tile 6 adjacent on the one side edge 6t1 side. Thereby, the tile main body 6A is arranged without a gap from the tile main body 6A of the tile 6 adjacent in the direction orthogonal to the flow direction F.

  Moreover, the roof tile 6 is covered with the roof tile 6 adjacent to the insertion direction 6B and a part on the ridge side where the insertion holes 17A and 17B are provided in the direction orthogonal to the flow direction F and the flow direction F. Thereby, the working width L1 of the roof tile 6 of this embodiment is set to about 250 to 350 mm, for example, and the working length L3 is set to about 230 to 330 mm.

  At least one fixing tool 7 is used for each roof tile 6. In the present embodiment, one fixing tool 7 is used and is inserted into the first insertion hole 17 </ b> A of the roof tile 6. Note that the fixing tool 7 is inserted into the second insertion hole 17B only when the first insertion hole 17A cannot be used or during reinforcement. Further, the fixing tool 7 has a length from the roof tile 6 to the base plate 3 and can exert a large fastening force. For example, a nail, a screw, or a ring nail is preferably used for the fixing tool 7.

  In the roof structure 1 of the present embodiment, as shown in FIGS. 3 and 5, the horizontal rail 5 is fixed to the waterproof sheet layer 4 via the support member 9, so that between the support members 9 and 9, A drainage flow path 10 is provided in a direction intersecting with the horizontal rail 5. The drainage channel 10 can guide rainwater and condensation that have entered from the gaps between the roof tiles 6 to the eaves side using the gradient of the field plate 3, and can discharge the rainwater and dew condensation to the eaves 15 through the eaves drainage plate 16.

  The support member 9 of the present embodiment is formed of a vertical beam 9 </ b> A that is elongated along the flow direction F and is spaced in the longitudinal direction of the horizontal beam 5. The vertical beam 9A of the present embodiment is formed in a substantially rectangular cross section with a thickness W3 of about 2 to 4 mm, which is thinner than the horizontal beam 5, and a width W4 of about 40 to 60 mm.

  Further, in the roof structure 1, the fixing tool 7 extends from the first insertion hole 17 </ b> A provided in the tile 6, the tile 6, the horizontal beam 5, the support member 9 (the vertical beam 9 </ b> A in this embodiment), and the waterproof sheet. It penetrates layer 4 continuously.

  Thus, since the fixing tool 7 of this embodiment penetrates each member continuously including the support member 9, it exhibits a sufficient fastening force without being exposed to a space portion such as the drainage channel 10. Can do. Thereby, the fixing tool 7 can exhibit sufficient resistance with respect to the blasting force by a typhoon or an earthquake. Therefore, the roof structure 1 prevents a gap from being generated between the fixing tool 7 and the waterproof sheet layer 4 due to a positional deviation of the fixing tool 7 due to the blowing force, and the roof plate 1 and the roof 20 (see FIG. 2). It is possible to suppress water intrusion and to improve durability.

  Moreover, since the fixing tool 7 does not penetrate the waterproof sheet layer 4 in which the drainage flow path 10 is formed, rainwater flowing through the drainage flow path 10 penetrates the fixing tool 7 and enters the base plate 3 and the shed 20. Can be surely prevented.

  Further, the support member 9 is in close contact with the waterproof sheet layer 4 by the fastening force of the fixing tool 7, and rainwater can be prevented from entering between the support member 9 and the waterproof sheet layer 4. Accordingly, in the roof structure 1, for example, even if a gap is generated between the fixing tool 7 and the waterproof sheet layer 4 due to thermal deterioration of the waterproof sheet layer 4 due to solar heat or the like, rainwater is applied to the field board 3 and the shed 20. Infiltration can be suppressed and durability can be improved.

  The support member 9 is not limited to the one made of the vertical beam 9A as in the present embodiment. For example, as shown in FIG. 6 (a), the waterproof sheet layer 4 side from the lower surface of the horizontal beam 5 is used. It may be a block-shaped protruding body 9B that protrudes toward the bottom. Such a protrusion 9 </ b> B can also exert sufficient resistance to the blowing force while forming the drainage flow path 10 by allowing the fixing tool 7 to pass therethrough.

  Further, the projecting body 9B of this embodiment is formed integrally with the horizontal beam 5 in advance and terminates in both ends of the horizontal beam 5 in the width direction. As a result, the projecting body 9B can be formed in advance at the factory together with the horizontal beam 5, and it is not necessary to fix the vertical beam 9A, so that the workability can be greatly improved.

  Further, the protruding body 9B may be formed separately from the horizontal rail 5 as shown in FIG. Since such a projecting body 9B can simplify the structure, the manufacturing cost can be suppressed. In addition, it is preferable that the protrusion 9B is previously fixed to the horizontal rail 5 with an adhesive or the like in a factory.

  Further, as shown in FIGS. 6A and 6B, the supporting member 9 has a waterproof sheet different from the waterproof sheet layer 4 on the lower surface in contact with the waterproof sheet layer 4 (shown in FIG. 5). A layer 18 and a sealing material (not shown) are preferably disposed. Such a waterproof sheet layer 18 can effectively suppress flooding of the field board 3 and the shed 20 by a synergistic effect with the waterproof sheet layer 4. In the present embodiment, an example in which the waterproof sheet layer 18 is fixed to the lower surface of the protruding body 9B is exemplified, but it goes without saying that the waterproof sheet layer 18 and a sealing material may be disposed on the lower surface of the vertical rail 9A. Absent.

  As described above, it is preferable that the positional relationship between the first insertion hole 17 </ b> A of the roof tile 6 and the support member 9 is determined in advance in order to allow the fixing member 7 to pass through the support member 9 with certainty. In the present embodiment, as shown in FIG. 7, when the tile 6 is disposed at an intermediate position in the width direction of the tile roof surface 1S, one side edge of the tile 6 (the tile main body 6A in the present embodiment). The position where the support member 9 is arranged is determined as the reference position BL for matching 6t1. This reference position BL is displayed in advance on, for example, the waterproof sheet layer 4 before the support member 9 is disposed.

  In the present embodiment, as shown in FIG. 8, a distance L2 between the one side edge 6t1 of the roof tile body 6A and the first insertion hole 17A through which the fixing tool 7 is inserted is separated from the reference position BL to the one side S1. In addition, the support member 9 is disposed at the first position B1, and the distance (L1-L2) between the roof working width L1 and the distance L2 is separated from the reference position BL to the other side S2. The support member 9 is disposed at the position B2. Here, “the support member 9 is disposed at the first and second positions B1 and B2” means that the support member 9 is disposed across the first and second positions B1 and B2, and the first The shortest distance L4 from the position B1 and the second position B2 to both ends 9t in the width direction of the support member 9 only needs to be larger than the effective diameter of the fixing tool 7 (in the case of a screw, the maximum diameter of the screw shaft). .

  As a result, the roof tiles 6, 6 adjacent to the one side S <b> 1 and the other side S <b> 2 with the reference position BL as a boundary are arranged below the first insertion holes 17 </ b> A, and the fixing tool 7 is attached to the support member 9. Can be reliably penetrated.

  Further, the support member 9 is spaced from the first position B1 to the one side S1 and / or from the second position B2 to the other side S2 at intervals of the working width L1. Thereby, the roof tile 6 continuously arranged on the one side S1 and / or the other side S2 can also reliably pass the fixing tool 7 through the support member 9.

  In the present embodiment, the support member 9 is also disposed at the third position B3 that is an intermediate position between the first position B1 and the second position B2. Further, the support member 9 is spaced from the third position to the one side S1 and / or the other side S2 at an interval of the working width L1.

  As a result, as shown in FIG. 9, the tiles 6 adjacent in the flow direction F of the tile 6 arranged in FIG. 8 can also arrange the support member 9 below the first insertion hole 17 </ b> A. In addition, when the tiles 6 adjacent to each other in the flow direction F are arranged in a line instead of the staggered pattern as in the present embodiment, the support member 9 does not need to be arranged at the third position B3. Needless to say.

FIG. 10 shows a roof structure 1 according to another embodiment of the present invention.
In the roof structure 1 of this embodiment, the tiles 6 are arranged in a staggered manner. In addition, the support member 9 is spaced from the first position B1 to the one side S1 and / or from the second position B2 to the other side S2 at intervals of the working width L1.

  In this embodiment, the support members 9 arranged at the first and second positions B1 and B2 are set wider than the support members 9 shown in FIG. It is also arranged below the insertion hole 17A. Accordingly, in the roof structure 1 of this embodiment, the roof tiles 6 arranged in a staggered manner can be surely passed through the support member 9 without arranging the support member 9 at the third position B3. Can do.

FIG. 11 shows a roof structure 1 according to still another embodiment of the present invention.
Also in the roof structure 1 of this embodiment, the tiles 6 are arranged in a staggered manner, and the support member 9 has a working width from the first position B1 to the one side S1 and / or from the second position B2 to the other side S2. It is provided at intervals of L1.

  In this embodiment, the support members 9 arranged at the first and second positions B1 and B2 are also arranged below the second insertion holes 17B of the tiles 6 adjacent in the flow direction F. The fixing tool 7 is inserted through the two insertion holes 17B. Thereby, the roof structure 1 of this embodiment can also make the fixing tool 7 penetrate the support member 9 reliably without arranging the support member 9 at the third position B3. Moreover, since the width of the roof structure 1 of the present embodiment can be set smaller than that of the support member 9 shown in FIG. 10, the drainage performance does not deteriorate.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

DESCRIPTION OF SYMBOLS 1 Roof structure 2 Rafter 3 Field plate 4 Waterproof sheet layer 5 Horizontal rail 6 Tile 7 Fixing tool 9 Support member 10 Drain flow path

Claims (8)

A field board supported by rafters, a waterproof sheet layer laid on the field sheet, a long horizontal rail fixed on the waterproof sheet layer and extending in a direction perpendicular to the flow direction of the roof, A roof structure having at least one tile roof surface including a tile that is hooked and locked to a horizontal rail, and a fixing tool that fixes the tile to the horizontal rail,
The horizontal rail is fixed to the waterproof sheet layer via a support member, so that a drainage flow path is formed between the support members in a direction intersecting with the horizontal rail.
And the said fixing tool penetrates this roof tile, the said horizontal rail, the said supporting member, and the said waterproof sheet layer continuously from the insertion hole provided in the said roof tile without passing through the said drainage flow path. And the roof structure.
  2. The roof structure according to claim 1, wherein the support member is formed of a vertical beam that is elongated along the flow direction and is spaced apart in the longitudinal direction of the horizontal beam.   The roof structure according to claim 1, wherein the support member includes a block-like projecting body projecting from a lower surface of the horizontal rail toward the waterproof sheet layer side.   The roof structure according to claim 3, wherein the projecting body terminates at both ends in the width direction of the horizontal rail.   The roof structure according to claim 3 or 4, wherein the protruding body is provided separately from or integrally with the horizontal rail.   The roof structure according to any one of claims 1 to 5, wherein a waterproof sheet layer or a sealing material different from the waterproof sheet layer is disposed on the lower surface of the support member. The tile roof surface has a middle position in the width direction as a reference position for matching one side edge of the tile in the width direction when the tile is arranged,
The support member is a first position in which a distance L2 between the one side edge of the roof tile and the insertion hole through which the fixing tool is inserted is separated from the reference position to one side;
And the distance of the difference (L1-L2) between the working width L1 of the roof tile and the distance L2 is arranged at a second position separated from the reference position to the other side,
7. The apparatus according to claim 1, wherein the working width L <b> 1 is spaced from the first position to one side and / or from the second position to the other side. 8. Roof structure. The tiles are arranged in a staggered pattern,
The support member is also disposed at a third position that is an intermediate position between the first position and the second position;
The roof structure according to claim 7, wherein the roof structure is spaced from the third position on one side and / or the other side by an interval of the working width L1.

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