JP2013068073A - Flat plate metal tile, roof structure using the same, and installation method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat plate metal tile which is superior in weathering, has less deformation or damage, and is easily constructible by anyone without requiring skills, a roof structure using the same, and an installation method thereof.SOLUTION: An eaves-side end includes: a water drip portion inclined downward from a tile body part; an engaging piece that is folded back to a ridge side from a tip of the water drip portion; and a first back board part made by folding down a tip of the engaging piece in an U-shape. A ridge side end, which is bent in an S shape from the tile body part and is extended, includes: an S-shaped piece in which a ridge side projection section and an eaves side projection section continue; a fixing piece extended from a tip of the S-shaped piece; and a second back board part made by folding up a tip of the fixing piece in an U-shape. In a state that the ridge side projection section of the S-shaped piece of the ridge side end of a flat plate metal tile positioned on the ridge side is contacted with an eaves side surface of a tile batten installed on a roof, the fixing piece is fastened on a top face of the tile batten. The engaging piece and the first back board part of the eaves-side end of the flat plate metal tile adjacent to the ridge side are inserted into an engaging groove formed according to the ridge side projection section of the ridge side end of the flat plate metal tile positioned on an eaves side.

Description

  The present invention relates to a flat metal tile, a roof structure using the flat metal tile, and an installation method thereof.

  In recent years, lightweight metal tiles formed from galvalume steel plates, stainless steel plates, aluminum plates, etc. have been shown to be excellent as waterproofing, fireproofing, and earthquake resistance, and are also economically superior. It is also becoming popular. In particular, since the Great East Japan Earthquake, demand for metal roof tiles has been increasing from the viewpoint of improving the earthquake-resistant structure of houses. However, conventional metal roof tiles have a problem that they are less rigid than clay roof tiles, easily deformed by external force, and rain leakage occurs due to capillary action.

  In Patent Document 1, as a roof structure in which a conventional metal tile is constructed, a plurality of metal tiles are roofed while the eaves side end of the ridge side metal tile and the ridge side end of the eaves side metal tile are engaged with each other. In the structure arranged side by side along the inclination direction, the eaves side metal roof is provided with a stepped flooding suppression surface on the eaves side from the rising surface formed at the eaves side end of the ridge side metal roof at this engagement site. The structure which prevents the penetration | invasion to the engaging part of the rainwater which flows backward on a roof surface toward the building side from the eaves side is disclosed.

  However, in such a structure, the eaves side end of the ridge side metal tile is folded downward and then folded back to the ridge side, and the folded portion is in contact with or close to the surface of the eave side metal tile. It has become. For this reason, when the rainwater flowing from the ridge side toward the eaves side flows down from the rising surface of the ridge side metal tile to the surface of the eaves side metal tile, a minute gap between the folded portion and the surface of the eaves side metal tile. From the inside of the roof, it can spill into the ridge due to capillary action, and this rainwater can enter the roof and cause rain leakage.

  In addition, in the roof flat part, when the folded part at the eaves side end of the ridge side metal tile is in contact with or close to the surface of the eaves side metal tile, for example, the metal tile is pressed from above at the time of construction. If a foreign object or the like falls on the metal tile, the folded portion is immediately strongly pressed against the surface of the eaves-side metal tile, and the metal tile is likely to be deformed or damaged.

  Furthermore, since the uneven water-inhibiting surface portion formed on the surface of the eaves-side metal tile is exposed to the outside, there is a problem that the design is restricted and the aesthetic appearance of the roof is impaired.

  On the other hand, it is necessary to perform the installation method of the flat metal tile by the fastening method, but in this case, the roofing is spread over the base plate, and the fastening portion is in close contact with it, so that sufficient heat insulation and sound insulation are obtained. In addition to being unable to do so, there is a problem that the rain finish depends on construction accuracy.

  In order to solve such a problem, in Patent Document 2, a roof structure in which metal tiles are arranged side by side while engaging metal tiles on the ridge side and the eaves side is formed at the eave side end of the ridge side metal tile. The tip of the draining part is separated from the surface of the eaves side metal tile, and the water return stepped part rising from the surface of the eaves side metal tile is separated from the eaves side end part of the ridge side metal tile. Rainwater that flows to the eaves side is surely dropped from the tip of the drainage part to the surface of the eaves side metal tile, and the entry of rainwater that flows backward from the eaves side to the building side is prevented by the water return step. A structure is disclosed. Moreover, in this structure, the clearance gap which interposed the buffer material was formed between the metal tiles of the ridge side and the eaves side, and the pushing down of the metal tile is permitted.

  However, in such a structure, although the cushioning material is provided, the metal roof tile itself is not supported, and when a large external force is applied or when the external force continues to act for a long time. However, there is a problem that the deformation or breakage of the metal roof cannot be avoided. In particular, the ridge side end of the eaves side metal tile has a surface that rises substantially vertically such as a rising piece or a vertical piece. When fixing to a roof, when a construction person's leg | foot gets on this part or an object falls, this part will deform | transform easily. Furthermore, in Cited Document 2, an installation method is employed in which the end portions are engaged with each other after the ridge side ends are fixed to the roof tiles. However, depending on the skill level of the operator, the metal roof tiles may be used during the engagement work. As a result, deformation may occur, or the tension acting on the metal roof tile may become non-uniform, which may cause capillary action. For this reason, the metal tile described in the cited document 2 can be said to be a structure that is excellent in rain performance in comparison with the conventional structure, but if the metal tile is deformed or damaged due to the above reasons, or the construction accuracy is not sufficient. In some cases, there is a problem that rain leakage cannot be prevented sufficiently.

Japanese Patent No. 2694056 JP 2004-225476 A

  The present invention solves the above-mentioned problems, is excellent in rain, has little deformation and breakage, requires no skill, and can be easily installed by anyone, a roof structure using this flat metal tile, and its The purpose is to provide an installation method.

The flat metal roof tile of the present invention is
The tile main body formed in a flat plate shape, the eaves side end formed by bending the eaves side end of the tile main body downward, and the ridge side end of the tile main body bent upward A flat metal tile consisting of a ridge side end formed as a
The eaves side end includes a draining portion inclined downward from the roof tile main body portion, a locking piece folded back from the tip of the draining portion to the ridge side, and a tip of the locking piece in a U shape downward. A first water return portion formed by folding,
The ridge-side end is bent and extends in an S shape from the roof tile main body, and an S-shaped piece in which the ridge-side convex portion and the eave-side convex portion are continuous, and a fixed piece that extends from the tip of the S-shaped piece. And a second water return portion formed by folding the tip of the fixed piece upward in a U shape,
It is characterized by that.

  It is preferable that the tile main body is provided with a soundproof heat insulating material on the lower surface thereof.

  The draining portion is composed of an inclined piece inclined by 10 ° to 45 ° with respect to the roof tile main body, and a vertical piece extending in a direction perpendicular to the roof tile main body from the tip of the inclined piece. It is preferable that the piece is folded back approximately 90 ° from the tip of the vertical piece to the ridge side.

  It is preferable that a water channel is provided on a side surface of the roof tile main body.

The roof structure using the flat metal tile of the present invention,
In a state where the ridge-side convex portion of the S-shaped piece at the ridge-side end portion of the flat metal tile located on the ridge side is in contact with the eave-side side surface of the roof tile installed on the roof, the fixed piece is attached to the roof tile. The flat metal roof eaves that are fastened to the upper surface of the crosspiece and that are adjacent to the ridge side in the engagement groove formed corresponding to the ridge side convex portion of the ridge side end of the flat metal roof tile located on the eave side By inserting the locking piece and the first water return portion at the side end, the flat metal tiles adjacent to each other in the roof gradient direction are engaged with each other, and a plurality of flat metal tiles are arranged in the roof gradient direction. A roof structure arranged side by side along a second water return portion at a ridge side end of the flat metal tile located on the eave side, and a lower surface of the flat metal tile adjacent to the ridge side or the lower surface By bringing the soundproofing and insulating material in close contact with each other, the ridge-side flat metal roof tile is passed through the second water return portion of the eave-side flat metal roof tile. It has been supported by the crosspiece,
It is characterized by that.

  In this roof structure, it is preferable that a gap is provided between the lower surface of the flat metal tile or the soundproofing heat insulating material and the roof base plate or the roofing installed on the base plate.

  Further, a tile rail is installed at a position corresponding to an intermediate position between the eave side end and the ridge side end of the flat metal tile, and the flat metal tile is supported also at the intermediate position. Is preferred.

  Further, when the field board is installed on a rafter, the longitudinal direction of the roof tile and the longitudinal direction of the rafter form a right angle, and the roof tile is fastened to the rafter at the intersection with the rafter. It is preferable that

  The roof tiles are preferably installed on the roof via a plurality of strip-shaped scratches extending in the slope direction of the roof and arranged in parallel in the width direction, and the thickness of the scratches is 3 mm. More preferably, it is ˜15 mm.

In addition, when installing the flat metal roof of the present invention,
In a state where the ridge-side convex portion of the S-shaped piece at the ridge-side end portion of the flat metal tile located on the ridge side is in contact with the eave-side side surface of the roof tile installed on the roof, the fixed piece is attached to the roof tile. Fastened to the top of the pier,
In the engagement groove formed corresponding to the ridge-side convex portion of the ridge-side end of the flat metal tile located on the eaves side, the locking piece of the eave-side end of the flat metal tile adjacent to the ridge side And insert the first water return part,
In the state where the second water return portion of the ridge side end portion of the flat metal tile located on the eave side and the lower surface of the flat metal tile adjacent to the ridge side or the soundproof heat insulating material provided on the lower surface are in close contact with each other. , These flat metal tiles adjacent to each other in the roof gradient direction are engaged with each other.
It is preferable.

  In particular, a plurality of strip-like scratches extending in the gradient direction are arranged side by side so as to be equidistant in the width direction of the roof, and through the scratches so as to be equidistant in a direction perpendicular to the scratch. It is preferable that the flat metal tiles are installed after the tile rails are sequentially installed from the eaves side to the building side.

  When the flat metal roof tile according to the present invention is used, it is excellent in rain, little deformation and damage, no skill is required, and anyone can easily perform construction. Moreover, since the horizontal arrangement of the flat metal tiles can be easily made linear, it is possible to achieve a beautiful finish in appearance. Moreover, since the flat metal roof tile of the present invention has a structure having a thickness, a roof structure excellent in design can be obtained by combining it with a ceramic roof tile or other metal roof tiles. Furthermore, since it can be installed by the screw-type dry construction method used also for the installation of the pottery building tile, even a worker other than a sheet metal work such as a tiler can easily construct this roof structure.

It is a perspective view showing the whole shape about the flat metal roof tile of the present invention. It is a schematic longitudinal cross-sectional view showing the shape of the whole about the flat metal roof tile of this invention. It is a general | schematic expanded longitudinal cross-sectional view which shows the 1st embodiment of the roof structure using the flat metal tile of this invention. It is a longitudinal cross-sectional view which shows the state which constructed the flat metal tile of this invention on the roof. It is a fragmentary sectional perspective view which shows the 2nd embodiment of the roof structure using the flat metal tile of this invention.

  Hereinafter, embodiments of the present invention will be described by dividing into (1) flat metal roof tiles, (2) a roof structure using flat metal roof tiles, and (3) an installation method of flat metal roof tiles.

(1) Flat metal roof tile First, the basic structure of the flat metal roof tile of the present invention will be described with reference to FIGS. In addition, the flat metal roof tile of the present invention is not limited to the ones exemplified below, and as long as it has a basic structure, it can be modified in various ways depending on the shape of the roof to be constructed. included. Moreover, although it does not specifically limit about the magnitude | size of a flat metal tile, Hereinafter, it demonstrates taking an example of the thing of full length 200mm-320mm, full width 300mm-2000mm, and plate | board thickness 0.30mm-0.50mm. 1 to 3, for the convenience of illustration, the thickness of the flat metal roof tile is drawn thicker than the actual thickness in relation to other components. This also applies to FIGS. 4 and 5.

  The flat metal roof tile (1) of the present invention is formed by bending a band-shaped metal plate, and the flat roof tile main body (2) and the eaves side end of the roof tile main body (2) are bent downward. The eaves side end part (3) formed in this way and the ridge side end part (4) formed by bending the ridge side end part upward.

  From the viewpoint of soundproofing and heat insulation, it is preferable that a soundproof heat insulating material (5) is attached to the lower surface of the tile main body (2). As such a soundproofing heat insulating material (5), if it can be processed into a sheet form, it will not specifically limit, For example, well-known materials, such as a urethane foam and a polystyrene foam, can be used.

  Moreover, a fixed space | gap (8) is provided between the sound-insulation heat insulating material (5) and the roofing (7) affixed on the field board (6) in the state which installed the flat metal roof tile (1). It is preferable. The presence of such a gap (8) forms an air layer between the soundproofing and heat insulating material (5) and the roofing (7), so that the soundproofing effect and the heat insulating effect can be further enhanced.

  In addition, the thickness of the soundproofing heat insulating material (5) and the height dimension of the gap (8) are not particularly limited, and in consideration of the required soundproofing effect, heat insulating effect, the shape of the roof to be constructed, It is appropriately selected. In the present embodiment, the thickness of the soundproofing heat insulating material (5) is 4 mm to 10 mm, and the height of the gap (8) is about 0 mm to 18 mm.

  It is preferable to provide a water channel (26) on the side surface of the roof tile body (2). By providing the water channel (26), the flow of rainwater at the joints between the flat metal tiles arranged side by side can be made smooth. Moreover, it is preferable to give the surface of a tile main-body part (2) slate-like embossing from a viewpoint of making a rainwater flow into a fixed direction and improving the rigidity of a flat metal roof tile.

  The eaves-side end (3) is inclined with respect to the tile main body (2) and the inclined piece (9) inclined by 10 ° to 45 ° with respect to the tile main body (2) and perpendicular to the tile main body (2) from the tip of the inclined piece (9) A vertical piece (10) extending in the direction, a locking piece (11) folded back 90 ° from the tip of the vertical piece (10) toward the ridge, and the tip of the locking piece (11) downward U And a first water return portion (12) that is folded back in a letter shape.

  Of these, the inclined piece (9) and the vertical piece (10) act as a draining portion (13). For example, when rainwater flows down the surface of the flat metal roof tile (1) from the ridge side to the eaves side, the adjacent flat plate Prevents rainwater from entering the engaging portions of the metal roof tiles. Specifically, since the lower end of the vertical piece (10) is separated from the surface of the adjacent flat metal roof tile (1) by a predetermined distance, it is possible to prevent the rainwater from entering the ridge side due to capillary action. . The interval between the lower end of the vertical piece (10) and the surface of the adjacent flat metal roof tile (1) is preferably 8 mm to 15 mm, more preferably 8 mm to 10 mm. Regulate dimensions and shape. If it is less than 8 mm, the capillary phenomenon cannot be sufficiently prevented, and if it exceeds 15 mm, a problem in strength may occur.

  The inclined piece (9) has a function of preventing rain water from being caught. For this reason, the inclination angle with respect to the roof tile body portion needs to be 10 ° to 45 °, and preferably 10 ° to 20 °. If the angle is less than 10 °, the above function is not sufficiently exhibited. If the angle exceeds 45 °, the strength of the eaves side end portion is lowered.

  In addition, in the present Example, although the draining part (13) is comprised by the inclined piece (9) and the vertical piece (10), predetermined angle (10 degrees-45 degrees) from a roof tile main-body part (2). It can also be comprised from one inclination piece extended diagonally downward. Further, the inclined piece (9) may be constituted by a plurality of inclined pieces having different angles or may be constituted by a curved piece.

  Moreover, since the 1st water return part (12) provided in the front-end | tip of the latching piece (11) has the shape which turned the front-end | tip of the latching piece (11) downward U-shaped. The rainwater can be effectively prevented from entering the engaging portions of the adjacent flat metal roof tiles.

  The ridge side end (4) bends and extends in an S shape from the tile main body, and the ridge side convex portion (19) and the eaves side convex portion (20) are connected to each other. A fixed piece (17) extending from the front end of the character piece (15) and a second water return portion (18) formed by folding the front end of the fixed piece (17) upward in a U shape.

  Corresponding to this ridge side convex part (19), the engaging groove (14) formed in the inside is formed so that engagement with the latching piece (11) of another flat metal roof tile is possible.

  The S-shaped piece (15) is appropriately formed according to the height dimension of the roof tile (16) installed on the roofing (7), but the dimension of the innermost part of the engagement groove (14) is It is necessary to mold so as to be about 2.0 to 2.5 times the plate thickness. If it is 2.0 times or less, the locking piece (11) cannot be inserted all the way, and if it exceeds 2.5 times, the gap between the engaging parts becomes large. The invasion of can not be sufficiently suppressed.

  In the present invention, when installing the flat metal roof tile (1), the ridge-side convex portion (19) of the S-shaped piece (15) is placed on the eaves side surface of the roof tile (16) installed on the roofing (7). In the abutted state, the fixing piece (17) is fastened to the upper surface of the roof tile (16) with a fastening tool (21) such as a tapping screw, a screw or a nail. Thus, by installing the flat metal tile (1) with the tile rail (16) as a reference, the horizontal alignment of the flat metal tile (1) can be easily made straight, without requiring skill, No matter who constructs it, it can have a beautiful finish.

  Moreover, it does not specifically limit about the material of the flat metal roof tile of this invention, Well-known materials, such as a galbarium steel plate, a stainless steel plate, an aluminum plate, can be used. It is preferable to select a material according to the purpose in consideration of the environment in the area of use and the shape of the roof. For example, a lightweight aluminum plate is preferable for improving the earthquake resistance, and a galvalume steel plate having high corrosion resistance is suitable in an area where acid rain is a problem.

  In the present invention, from the viewpoint of improving the durability of the flat metal tile, the plate thickness is basically about 0.30 mm to 0.50 mm, but is not limited to this range, and the characteristics of the material used It is preferable to select appropriately according to the purpose.

  (2) Roof structure using flat metal tiles

(2-a) 1st embodiment Next, the 1st embodiment of the roof structure using the flat metal roof tile (1) of this invention is described using FIG. 3 and FIG. This embodiment inserts the locking piece (11) of the flat metal tile (1) adjacent to the ridge side into the engagement groove (14) of the flat metal tile (1) located on the eave side, and these roofs. The flat metal tiles (1) adjacent to each other in the gradient direction are engaged with each other, and a plurality of flat metal tiles (1) are arranged in parallel along the roof gradient direction.

  In particular, in the present invention, the soundproofing of the second water return portion (18) of the ridge side end (4) of the flat metal tile (1) located on the eave side and the flat metal tile (1) adjacent to the ridge side. The flat metal roof tile (1) is supported by the roof tile (16) through the second water return portion (18) by being in close contact with the heat insulating material (5).

  For this reason, even when an external force is applied to the engaging portion, the external force is supported by the elasticity of the second water return portion (18) and the roof tile (16), so that the flat metal roof tile (1) It is possible to effectively prevent the deformation and breakage. In addition, since the second water return portion (18) is also supported by the tile rail (16) with external force applied, it is restored by its elasticity without loss of external force without being deformed or damaged. Together with the restoring force due to the elasticity of the draining portion (13), the flat metal roof tile (1) can be returned to its original state. In addition, what has a buffering effect is used as a sound insulation heat insulating material (5), or between a sound insulation heat insulating material (5) and a fixed piece (17), and also between a sound insulation heat insulating material (5) and a roofing (7). In addition, it is possible to further enhance the effect of preventing deformation and breakage of the flat metal roof tile (1) by inserting a buffer material separately.

  Further, the fixed piece (17) is fixed to the roof rail (16) by the fastener (21) and is completely covered by the eaves side end (3) of the flat metal roof tile (1) on the ridge side. Moreover, corrosion of the fastener (21) can be prevented and no problem is caused in the appearance design of the flat metal roof tile (1). In addition, even if corrosion occurs in the fastener (21), since the base plate (6) and the roofing (7) are not directly affected, the durability of the roof can be enhanced by this structure.

  Furthermore, the present invention is also characterized in that rainwater can be effectively prevented from entering the engaging portion. As described above, for rainwater that flows from the ridge side to the eaves side, the drainage function is improved by the action of the draining portion (13), and water enters the engaging portion between the adjacent flat metal tiles (1). Is blocked.

  On the other hand, in the case of a storm such as a typhoon, it may be assumed that rainwater flows backward from the eaves side to the building side. In this case, most of the rainwater is prevented from entering the engaging portion by the action of the first water return portion (12) provided at the tip of the locking piece (11). Even if a part of the rainwater passes through the engaging portion due to the capillary phenomenon, the gap (22) is present at the tip of the rainwater, so that the subsequent capillary phenomenon does not occur. Even if rainwater reaches the vicinity of the second water return portion (18), further infiltration is prevented by the action of the second water return portion (18). In particular, by bringing the second water return portion (18) into intimate contact with the soundproofing heat insulating material (5), the occurrence of capillary action is prevented and the intrusion of rainwater is completely prevented.

  In this invention, it is preferable to provide a space | gap (8) between a sound-insulation heat insulating material (5) and a roofing (7) as mentioned above. Thereby, since an air layer is formed between the soundproofing and heat insulating material (5) and the roofing (7), the soundproofing effect and the heat insulating effect can be further enhanced. Furthermore, since the high air permeability can be secured by the presence of the gap (8), it is effective from the viewpoint of preventing the roofing (7) or the base plate (6) from being corroded and extending the life of the roofing material including these. You can say that.

  It is preferable to further install a tile bar (not shown) at a position corresponding to an intermediate position between the eaves side end (3) and the ridge side end (4) of the flat metal roof tile (1). Thereby, since the flat metal roof tile (1) is supported also in this intermediate position, even if it is a case where an external force acts on this intermediate position, a deformation | transformation and damage of a flat metal roof tile (1) will be carried out. It becomes possible to prevent. In addition, it is necessary to adjust suitably the dimension of the height direction of the roof tile installed in this intermediate position so that an unevenness may not appear on the surface when the flat metal roof tile (1) is installed.

  In the roof structure of the present invention, the longitudinal direction of the tile rail (16) and the longitudinal direction of the rafter (23) form a right angle, and at the intersection of the tile rail (16) with the rafter (23), tapping screws and screws are provided. It is preferable that it is fastened to the rafter (23) by a nail. In such a structure, the tile rail (16) is supported by the rafters (23), and the tile rail (16) also functions as a roof reinforcement. Strength can be increased.

  Moreover, in this invention, the state where the eaves tip starter (24) provided with the same structure as the eave side of a flat metal roof tile (1) is engaged with the eave front end (3) of the flat metal roof tile (1) in the eaves front end. It is installed at. Since the eaves starter (24) has a higher force for fixing the roof tile than the conventional one, it can improve wind resistance.

  In addition, since the flat metal roof tile of the present invention itself has a structure having a thickness, it can be used in combination with a ceramic triangle roof tile to store the ridge. It is also possible to construct a roof structure not only for the ridge but also for use with the ceramic ridge tile. In such a combined type structure, not only can the design of the entire roof structure be improved, but also the arrangement of the flat metal tiles can be stabilized, so that the earthquake resistance and durability can be further improved. .

(2-b) Second Embodiment FIG. 5 shows a second embodiment using the flat metal roof tile of the present invention. In this embodiment, the flat metal roof tile of the present invention is applied to the scratching method, and the other points are the same as those in the first embodiment. Therefore, common parts are omitted or simplified. Explain. The scratching method is a method of removing scratches extending in the direction of the roof slope between the roofing roof and the roof tile so that a gap is formed between the roofing roof and the roof tile for the purpose of maintaining rainwater treatment and air permeability. The construction method to be installed.

  In the present embodiment, the tile rails (16) are arranged on the roof via a plurality of strip-shaped scratches (27) that are arranged in parallel in the width direction of the roof and extend in the gradient direction of the roof. A gap (28) is formed between the roofing (7) and the roof tile by the thickness of the scratch (27). When the flat metal roof tile (1) of the present invention is used, it is possible to prevent intrusion of rainwater or the like, but in the event that rainwater enters from the engaging portion of the flat metal roof tile (1), or Even when water vapor is condensed in the gap (8), the rainwater or water generated by the condensation is not blocked by the roof rail (16) and is passed from the eaves to the outside via the gap (28). Will be discharged. Furthermore, the presence of the air gap (28) can improve air permeability and water permeability, so that the soundproofing heat insulating material (5), the roofing (7), etc. can be quickly dried, and their corrosion is prevented. Therefore, the durability of the roof structure can be improved.

  Wood, artificial wood, synthetic resin and the like can be used as the material constituting the scratch (27), but it is preferable to use wood from the viewpoint of workability.

  The thickness of the scratch (27) is 3 mm to 15 mm, preferably 3 mm to 10 mm, more preferably 3 mm to 5 mm. If the thickness of the scratch (27) is less than 3 mm, the above effect cannot be obtained. On the other hand, if it exceeds 15 mm, there is a possibility that the wind pressure resistance deteriorates.

  Further, the width of the scratch (27) is 15 mm to 30 mm, preferably 15 mm to 21 mm. If the width of the scratch (27) is less than 15 mm, the fixing of the roof tile may become unstable. On the other hand, if it exceeds 30 mm, not only the air permeability and water permeability cannot be improved, but also the cost increases.

(3) Installation method of flat metal tiles The installation method of flat metal tiles of the present invention makes it possible to neatly arrange the horizontal arrangement of flat metal tiles (1) in a straight line by using tile rails. Hereinafter, the installation method of the flat metal tile of the 1st embodiment of this invention is demonstrated using FIG.

  First, the first roof tile (16a) is installed in the direction perpendicular to the longitudinal direction of the rafters (23) on the eaves part on the base plate (6) to which the roofing (7) is attached. The tile rails (16b to 16c) are sequentially installed from the eaves side to the ridge side so as to be parallel to and equidistant from the first tile rail (16a). The interval between these tiles is determined in advance in consideration of the overall length of the flat metal tiles (1a to c) to be constructed. In addition, by separately installing a tile bar (not shown) at a substantially middle position between adjacent tile bars, deformation and breakage at the intermediate position of the flat metal roof tile can be prevented.

  Next, after attaching the eaves starter (24) to the first roof tile (16a) at the eaves part, the front end of the eaves starter (24) and the eaves side end (3a) of the first flat metal roof tile (1a) ) And the soundproofing heat insulating material (5a) attached to the lower surface of the flat metal roof tile (1a) and the upper surface of the eaves starter (24) in close contact with each other, the ridge side convex portion (19a) After making it contact | abut to the eaves side surface of a 2nd roof tile (16b), a fixed piece (17a) is pressed on the upper surface of a 2nd roof tile (16b), and it fastens with a fastener (21). In addition, when it is difficult to closely contact the first roof tile (16a) and the soundproofing and heat insulating material (5a), it is preferable to adjust by inserting a cushioning material (25) or the like between them.

  After the first flat metal roof tile (1a) is installed at the eaves portion, the second flat metal roof tile (1b) installed adjacent to the engaging groove (14a) of the flat metal roof tile (1a) The soundproofing which inserted the piece (11b) and was attached to the lower surface of the 2nd water return part (18a) of the flat metal roof tile (1a) of the eaves side, and the 2nd flat metal roof tile (1b) adjacent to the ridge side. With the heat insulating material (5b) in close contact, the ridge side convex portion (19b) of the second flat metal roof tile (1b) adjacent to the ridge side is brought into contact with the eaves side surface of the roof tile (16c), The fixing piece (17b) is fastened to the upper surface of the roof tile (16c). Thereafter, in the same way, flat metal tiles are installed sequentially from the eaves side to the building side.

  In addition, although the installation method of the flat metal roof tile (1) in the case of a 2nd embodiment is the same as that of a 1st embodiment fundamentally, it differs by the following points. That is, in the second embodiment, prior to the installation of the roof tiles (16), the slopes are arranged on the field board (6) to which the roofing (7) is attached so as to be equally spaced in the width direction of the roof. A plurality of strip-shaped scratches (27) extending in the direction are arranged in parallel, and the tile rails are sequentially installed from the eaves side to the ridge side through the scratches so as to be equally spaced in a direction perpendicular to the scratches. Then, it is different from the first embodiment in that the flat metal tiles are sequentially installed from the eaves side to the building side. The installation interval of the scratches (27) is preferably set to 300 mm to 450 mm from the viewpoint of stably fixing the roof tile (16).

  The scratch (27) is fixed to the roofing (27) by a fastening tool (21) such as a tapping screw, a screw or a nail.

  The flat metal tile installation method of the present invention is called a screw-clamping dry construction method used when installing a ceramic ware roof tile, and the position of the flat metal tile is automatically determined by a pre-sized tile bar. For this reason, the horizontal alignment of the flat metal tiles can be easily made straight without requiring skill. Therefore, an operator other than a sheet metal worker such as a tiler can easily construct this roof structure. In addition, because the tension in the roof gradient direction acting on the adjacent flat metal tiles is constant due to the interval between the tiles and the structure of the engaging portions, it is excellent in rain finishing and can be installed without variation. Therefore, the construction period can be shortened and the cost can be reduced.

DESCRIPTION OF SYMBOLS 1, 1a-c Flat metal tile 2 Tile main-body part 3, 3a-c Eave side edge part 4 Building side edge part 5, 5a-c Soundproof heat insulating material 6 Field plate 7 Roofing 8 Cavity 9 Inclined piece 10 Vertical piece 11, 11a -C Locking piece 12 1st water return part 13 Draining part 14, 14a-c Engaging groove 15 S-shaped piece 16, 16a-c Roof tile 17, 17a-c Fixed piece 18, 18a-c 2nd water Return part 19, 19a-c Building side convex part 20 Eave side convex part 21 Fastening tool 22 Space | gap 23 Rafter 24 Eve starter 25 Buffer material 26 Water channel 27 Scratch (sink)
28 Air gap

Claims (12)

The tile main body formed in a flat plate shape, the eaves side end formed by bending the eaves side end of the tile main body downward, and the ridge side end of the tile main body bent upward A flat metal tile consisting of a ridge side end formed as a
The eaves side end includes a draining portion inclined downward from the roof tile main body portion, a locking piece folded back from the tip of the draining portion to the ridge side, and a tip of the locking piece in a U shape downward. A first water return portion formed by folding, and the ridge side end portion is bent and extended in an S shape from the roof tile main body portion, and an S shape piece in which the ridge side convex portion and the eave side convex portion are continuous, and A fixed piece extending from the tip of the S-shaped piece, and a second water return portion formed by folding the tip of the fixed piece upward in a U shape.
Flat metal tile.   The flat metal tile according to claim 1, wherein the tile main body portion includes a soundproof heat insulating material on a lower surface thereof.   The draining portion is composed of an inclined piece inclined by 10 ° to 45 ° with respect to the roof tile main body, and a vertical piece extending in a direction perpendicular to the roof tile main body from the tip of the inclined piece. The flat metal roof tile according to claim 1, wherein the piece is folded back approximately 90 ° from the tip of the vertical piece toward the ridge side.   The flat metal roof tile according to claim 1, comprising a water channel on a side surface of the roof tile main body.   In a state where the ridge-side convex portion of the S-shaped piece at the ridge-side end portion of the flat metal tile located on the ridge side is in contact with the eave-side side surface of the roof tile installed on the roof, the fixed piece is attached to the roof tile. The flat metal roof eaves that are fastened to the upper surface of the crosspiece and that are adjacent to the ridge side in the engagement groove formed corresponding to the ridge side convex portion of the ridge side end of the flat metal roof tile located on the eave side By inserting the locking piece and the first water return portion at the side end, the flat metal tiles adjacent to each other in the roof gradient direction are engaged with each other, and a plurality of flat metal tiles are arranged in the roof gradient direction. A roof structure arranged side by side along a second water return portion at a ridge side end of the flat metal tile located on the eave side, and a lower surface of the flat metal tile adjacent to the ridge side or the lower surface By bringing the soundproofing and insulating material in close contact with each other, the ridge-side flat metal roof tile is passed through the second water return portion of the eave-side flat metal roof tile. Roof structure using a flat metal tile according have been supported by the bars, in any one of claims 1 to 4.   The roof structure according to claim 5, wherein a gap is provided between a lower surface of the flat metal tile or the soundproofing heat insulating material and a roof base plate or a roofing installed on the base plate.   A tile rail is further installed at a position corresponding to an intermediate position between the eaves side end and the ridge side end of the flat metal tile, and the flat metal tile is supported also at the intermediate position. The roof structure according to 5 or 6.   The base plate is installed on a rafter, the longitudinal direction of the roof tile and the longitudinal direction of the rafter are perpendicular, and the roof tile is fastened to the rafter at the intersection with the rafter. The roof structure according to claim 6 or 7.   The tile roofs are arranged side by side at equal intervals in the width direction of the roof, and are installed on the roof via a plurality of strip-shaped scratches extending in the gradient direction of the roof. The roof structure of crab.   The roof structure according to claim 9, wherein the scratch has a thickness of 3 mm to 15 mm. It is the installation method of the flat metal roof tile in any one of Claims 1-4,
In a state where the ridge-side convex portion of the S-shaped piece at the ridge-side end portion of the flat metal tile located on the ridge side is in contact with the eave-side side surface of the roof tile installed on the roof, the fixed piece is attached to the roof tile. Fastened to the top of the pier,
In the engagement groove formed corresponding to the ridge-side convex portion of the ridge-side end of the flat metal tile located on the eaves side, the locking piece of the eave-side end of the flat metal tile adjacent to the ridge side And insert the first water return part,
In the state where the second water return portion of the ridge side end portion of the flat metal tile located on the eave side and the lower surface of the flat metal tile adjacent to the ridge side or the soundproof heat insulating material provided on the lower surface are in close contact with each other. , These flat metal tiles adjacent to each other in the roof gradient direction are engaged with each other.
How to install flat metal tiles. A plurality of strip-shaped scratches extending in the gradient direction are arranged in parallel so as to be equidistant in the width direction of the roof, and the eaves are passed through the scratch so as to be equidistant in a direction perpendicular to the scratch. The flat metal roof tile installation method according to claim 11, wherein the flat metal roof tiles are installed after the tile rails are sequentially installed from the side to the building side.

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