JP6837402B2 - Roof board material - Google Patents

Description

The present invention relates to a roof plate material suitable for use in the case of newly constructing a roof or in repairing or repairing an existing roof.

Generally, for a vertical roof, it is recommended to use a long, narrow roof plate whose main body is long in the beam-to-beam direction (direction from the eaves to the ridge) and short in the girder direction (direction along the eaves). It is common, and the entire roof is roofed by repeating the work of connecting the roof plate materials in the girder direction (direction along the eaves) after finishing the connection between the roof plate materials in the beam-to-beam direction.

On the other hand, for a horizontal roof, the main body of the roof plate material is usually long in the girder direction and short in the beam-to-beam direction, and a short and wide roof plate material is usually used. The entire roof is roofed by repeating the work of connecting the roof plate materials in the direction between the beams.

Although there are differences in the roofing method of this type of roofing board material, all of them are generally produced continuously by rolling molding a long coil (made of metal), and in particular, Roofing boards for vertical roofs are often made of a single piece having the same length as the roof in order to eliminate the need for connecting the roofing boards in the inter-beam direction from the viewpoint of improving waterproofness. ..

By the way, in the case of a roofing board material for vertical roofing, which is made of a single piece, when roofing is done in a house located in the center of the city, it is difficult to bring it in because the road is narrow, or it is under construction. Because it is difficult to secure a work space (surrounding open space, etc.) to be used for the purpose, its use may be restricted, and it is difficult to expand demand.

In order to solve such a problem, it has been attempted to integrate the roof plate materials by shortening the length of the roof plate materials and superimposing the underwater end and the water upper end of the roof plate on each other. In this case, it is unavoidable that the water stopping property is lowered at the overlapped portion of the roof plate materials.

As a conventional technique for improving the water stopping property at the jointed portion of the roof plate material, for example, in Patent Document 1, for example, in Patent Document 1, a second vertical roofing material is provided at an upstream end portion of the first vertical roofing material in the roof gradient direction from above. In the connecting structure of the metal roof for vertical roofing, in which the overlapping portions are provided with a pressure reducing portion, a structure has been proposed.

Japanese Unexamined Patent Publication No. 2013-213395

The connecting structure disclosed in Patent Document 1 is intended to prevent rainwater from entering between the first vertical roofing material and the second vertical roofing material by a decompression unit to prevent water from entering the building. In the decompression portion, a plurality of ridges formed by fixing a hot metal material to the first vertical roofing material are formed. Therefore, according to the connecting structure, the exterior material itself. It was said that it was possible to improve the water stopping property while suppressing the manufacturing cost of.

By the way, in this kind of connecting structure, a gap is formed between the tip of the second vertical roofing material and the first vertical roofing material, so that in a strong wind and rain situation, the gap is formed. Rainwater may be blown into the decompression section through the gap, and even if a water stop packing is installed at the dead end (back) of the decompression section, if the packing cracks due to deterioration over time, etc. There is also concern that rainwater will infiltrate the building through the cracks, and there is still room for improvement.

An object of the present invention is to propose a roof plate material capable of improving water stopping property in a superposed portion of the roof plate materials without complicating the cross-sectional shape or requiring an extra member.

The present invention includes a plate material body having a contour shape partitioned by an edge in the width direction and an edge in the longitudinal direction, and the lower end portion of the plate material body is provided on the water surface of the already arranged roof plate material. While superimposing on the side end, the water upper end of the plate body is overlapped on the lower side of the underwater end of the roof plate material to be arranged, so that the plate body is overlapped along the beam-to-beam direction. It is a roofing board material that connects the
An air pocket is formed at the underwater end of the plate material body in a state of being overlapped with the already arranged roof plate material by continuously or intermittently extending toward the edge in the width direction. It is a roof plate material characterized in that at least one recess is provided.

In the roof plate material having the above structure, the recess has an open end open toward the outer surface of the already arranged roof plate material, and the plate material body itself is locally directed toward the outer surface side thereof. It is preferable that it is formed by raising the roof.

Further, it is desirable that the plate material main body has an upper joint and a lower joint which can be linked to the lower joint and the upper joint of other roof plate materials arranged adjacent to each other at the edge in the width direction.

As the plate material main body, one having a corrugated cross-sectional shape in which peaks and valleys are alternately connected along the width direction thereof can be used. In the present invention, the air pocket is a overlapped portion when the water-side end of the roof plate material to be arranged is overlapped on the water-up end of the already arranged roof plate material. It is defined as a closed space formed in.

According to the present invention, when the roof plate materials are joined together, the overlapping portion of the roof plate materials on the water upper side and the water lower side is kept in contact with each other, so that rainwater can be avoided from being blown by wind and rain.

Further, according to the present invention, even if rainwater is sucked in due to the capillary phenomenon, the suction is cut off by the air pocket, and it is possible to prevent rainwater from entering the base material side.

It is a perspective view which showed typically the appearance of the roof plate material according to this invention. (A) is a view showing the plane of the roof plate material shown in FIG. 1, and (b) is a view showing the front surface of the roof plate material shown in FIG. (A) is a view showing the right side surface of the roof plate material shown in FIG. 1, (b) is a view showing the left side surface of the roof plate material shown in FIG. 1, and (c) is a view showing the left side surface of the roof plate material shown in FIG. It is a figure which showed the AA cross section of (a). FIG. 5 is a cross-sectional view showing a state in which a roof plate material according to the present invention is used and its underwater end is overlapped with the water upper end of the already arranged roof plate material. It is a figure which showed the situation of connecting the roof plate material according to this invention in the girder direction (eave direction) on the slate roof about a part thereof. (A)-(c) is a figure which showed the main part about the other embodiment of the roof plate material according to this invention. It is explanatory drawing of the roofing procedure of the roof using the roof plate material according to this invention. It is explanatory drawing of the roofing procedure of the roof using the roof plate material according to this invention. It is a figure which showed the use state of the roof plate material according to this invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is an external perspective view schematically showing an embodiment of a roof plate material according to the present invention, and FIG. 2 (a) is a view showing a plane of the roof plate material shown in FIG. 2 (b) is a view showing the front surface of the roof plate material shown in FIG. Further, FIG. 3A is a view showing the right side surface of the roof plate material shown in FIG. 1, and FIG. 3B is a view showing the left side surface of the roof plate material shown in FIG. Further, FIG. 3C is a diagram showing a cross section taken along the line AA of FIG. 2A.

The roof plate material shown in FIGS. 1 to 3 has a corrugated shape in which peaks and valleys are alternately arranged along the width direction of the roof plate material, and can be used not only when roofing a new roof. As an example, a roofing material that can be placed on an existing roof (slate roof or the like) and used in a cover method for covering the roof is taken as an example.

In the present invention, the "already arranged roof plate material", the "future-arranged roof plate material", and the "adjacently arranged roof plate material" are roof plate materials having the same configuration as the roof plate material according to the present invention. It means that the roof is roofed by connecting a plurality of these roof plate materials in the longitudinal direction (inter-beam direction) and the width direction (girder direction).

The roof plate material according to the present invention is basically a vertical roofing type roof plate material or a horizontal roof plate material in which the joint in the longitudinal direction (inter-beam direction) is performed in advance prior to the joint in the width direction (girder direction). It is suitable as a horizontal roofing type roof plate material that joins in the direction (girder direction) in advance, and has upper joints (upper haze) and lower joints (lower haze) at both ends in the width direction, and is arranged adjacent to each other. Lower joints of other roof plate materials to be used, roof plate materials of the haze tightening type that are tightened (haze tightened) with the upper joint, or roof plate materials that join the roof plate materials by fitting the upper joint to the lower joint. (Folded roof plate material, etc.), with a rising wall at the end in the width direction, the rising wall is brought into contact with the tile rod, and then covered with a cover to connect the roof plate materials together. It is also possible and not limited to what is shown. Further, the cross section is not limited to the corrugated shape.

Materials constituting the roof plate material include, for example, rust-preventive steel sheets such as hot-dip galvanized steel sheets and colored steel sheets having a width of about 300 to 1250 mm, a thickness of about 0.35 to 0.8 mm, and a length of about 1 to 10 m. A stainless steel plate, a copper plate, an aluminum alloy plate, a zinc plate, or the like can be used, and molding into a predetermined cross-sectional shape is performed by applying a roll molding method or the like. In particular, in the case of a roof plate material having a corrugated shape in which peaks and valleys are alternately arranged along the width direction of the roof plate, the width dimension z of the bottom wall in the valley (see FIG. 2A) If the width dimension x of the top wall in the mountain part (see FIG. 2A) is the same, there is a concern that distortion may occur during the molding process of the roof plate material and the shape may be deformed. It is desirable that the width dimension x of is set smaller than the width dimension z of the bottom wall in the valley.

Reference numeral 1 in FIGS. 1 to 3 is a plate material body having a planar contour shape defined by edge L, R (long side) in the width direction and edge S, T (short side) in the longitudinal direction. In the plate material main body 1, the lower end 1a is overlapped with the water upper end 1b of the already arranged roof plate material (U), while the water upper end 1b of the plate main body 1 is arranged from now on. It is composed of a roof plate material (V) to be installed, which is superposed on the lower side of the underwater end of the roof plate material (V) to connect the roof plate materials to each other.

Further, reference numeral 2 denotes a recess provided at the underwater end portion 1a of the plate material main body 1 and extending toward the end edge in the width direction of the plate material main body 1. The recess 2 is formed by recessing the back side surface of the plate material main body 1 toward the surface side of the plate material main body 1 (forming a groove portion opened downward, and the plate material main body 1). The recess 2 appears as a raised portion (convex portion) when viewed from the outer surface), and is opened toward the outer surface in a state of being overlapped with the already arranged roof plate material (U). It has an open end 2a, and an air pocket P is formed by the recess 2 (see FIGS. 3C and 4).

The recess 2 can be formed by locally raising the plate material body 1 itself toward the outer surface side when the roof plate material is molded into a predetermined cross-sectional shape, but the forming method thereof is particularly limited. Not done. Further, the number of recesses 2 and the planar shape are not limited. In FIGS. 1 to 3, the recess 2 is indicated by a lead-out line drawn from a raised portion on the outer surface of the plate material main body 1.

In this example, two recesses 2 are provided in parallel in the longitudinal direction of the plate material body 1 with an interval M (see FIG. 2A), and the recesses 2 are provided on the same axis in the central region in the width direction of the same valley. It is shown as having a divided divided portion 2b (the divided portion 2b is a flat portion at the same level as the outer surface of the plate material main body 1).

By providing the divided portion 2b in the recess 2, even if the outer surface of the plate material main body 1 is raised, rainwater can smoothly flow through the divided portion 2b. The recess 2 may be extended in a direction orthogonal to the edge L and R in the width direction of the plate material main body 1, or may be extended at an angle. Further, although the case where one divided portion 2b is provided in each valley portion is shown, the number of the divided portions 2b is not particularly limited, and the number can be arbitrarily changed. The divided portion 2b can be omitted if there is no particular hindrance to the flow of rainwater. The length (interval) of the divided portion 2b (the dimension from the end face of one recess 2 to the end face of the opposite recess 2) is preferably about 2 to 100 mm.

The recess 2 has a depth e from the opening end 2a of about 5 to 10 mm and a width dimension h of about 5 to 20 mm (see FIG. 3C). In the embodiment of the present invention, the width dimension h of the recess 2 in the valley portion is larger than the width dimension h of the recess 2 in the mountain portion, but the function as the air pocket P is sufficiently exhibited. If it is possible to make it possible, the recess 2 in the valley and the recess 2 in the mountain may have the same width. In providing the divided portion 2b, it is preferable to form the recesses 2 so that the ends having a semicircular planar shape face each other.

Further, reference numeral 3 in the drawing is a lower joint provided at one end edge of the plate material main body 1 in the width direction, and 4 is an upper joint provided at the other end edge of the plate material main body 1 in the width direction.

The lower joint 3 and the upper joint 4 have a function of superimposing each of the upper joint 4 and the lower joint 3 of other roof plate materials arranged adjacent to each other and connecting the roof plate materials to each other in the girder direction. The shape of the lower joint 3 and the upper joint 4 is such that when the roof plate materials are joined, the shape is equivalent to the mountain portion of the roof plate material.

Regarding the upper joint 4, a recess 2'that is integrally connected to the recess 2 can be provided so that the air pocket P is also formed in the joint portion. The recess 2'connecting to the recess 2 is omitted so that the lower joint 3 is closely overlapped with the upper joint 4 of the other roof plate material arranged adjacent to the lower joint 3.

FIG. 4 shows a state in which the roof plate material shown in FIGS. 1 to 3 above is used and the underwater end portion 1a is overlapped with the water upper end portion 1b of the already arranged roof plate material (U). It is the cross-sectional view shown.

According to the present invention, in the roof plate material, the overlapped portion of the water upper end 1b of the roof plate material and the already arranged underwater end 1a of the roof plate material are held in contact with each other, so that heavy rain or wind and rain Even if it is strong, rainwater will not be blown in during that time. Further, even if rainwater is sucked in at the overlapping portion of the roof plate materials due to the capillary phenomenon, the rainwater sucking is cut off by the air pocket P (see the enlarged view of FIG. 4) formed by the recess 2, so that the base material is used. It is possible to prevent rainwater from entering the side (indoor).

In the present invention, the stacking allowance K (see FIG. 4) in the longitudinal direction of the roof plate material is about 200 to 500 mm, more preferably about 350 mm. Further, the recess 2 can be provided at a location d (see FIG. 4) of about 90 to 110 mm, more preferably about 100 mm from the underwater end edge of the plate material main body 1. When a plurality of recesses 2 are provided in order to improve water stopping, the mutual spacing M (see FIGS. 2 and 4) of the recesses 2 is set to about 150 to 250 mm, more preferably about 200 mm. In particular, when a plurality of recesses 2 are provided, the mutual spacing M is set to about 200 mm and the spacing between the divided portions 2b is set to 5 mm or less, so that even if the divided portions 2b are provided on the same axis, the portions thereof. Rainwater is not sucked through.

The roof plate material is fixed by using a fastening means such as a fixing screw that penetrates the roof plate material and enables screwing into a beam member or the like of a building structure (the fixing position is arbitrarily set). In particular, in the overlapping portion of the roof plate material, at the top of the overlapping portion of the lower joint 3 and the upper joint 4, and at a position of about 65 to 85 mm, more preferably about 75 mm from the edge T of the plate material main body 1. It is better to fix it with, which can increase the fixing strength of the roof plate material.

In FIG. 5, a roof plate material (indicated by reference numerals Z and W) according to the present invention is arranged on an existing slate roof (Y) having a corrugated cross-sectional shape, and the roof plate materials are placed in the girder direction (eave direction). It is a figure which showed the situation to connect about a part.

Even when the roof plate materials (Z) and (W) according to the present invention are arranged on the existing slate roof (Y) to repair or repair the roof, the roof plate materials can be fixed at the overlapped portion. This is performed at the top of the overlapped portion between the lower joint 3 of the roof plate material already arranged and the upper joint 4 of the roof plate material to be arranged, and at a position 65 to 85 mm from the edge T of the plate material body 1. .. In this case, a fastening means that penetrates the existing slate roof (Y) and enables screwing into a beam member or the like located below the slate roof (Y) is used.

The cross-sectional shape of the recess 2 is not particularly limited. For example, as shown in FIG. 6 (a), a ridge-side portion having a single-sided cross section with an inclination so as to be lower than the eaves-side portion, or as shown in FIG. 6 (b). Those having a triangular cross section, those having a semicircular shape or a dome shape as shown in FIG. 6C, and the like can be applied.

When the recesses 2 as shown in FIGS. 6 (a) to 6 (c) are provided, when a large amount of rainwater flows to the outer surface of the roof plate material due to heavy rain or the like, the rainwater easily gets over the raised portion, so that the roof The drainage property on the outer surface of the plate material is improved. When a plurality of recesses 2 are provided, the depth e (see FIG. 3C), the width dimension h (see FIG. 3C), and the cross-sectional shape of the recesses 2 are appropriately changed in each recess. be able to.

In order to roof a new roof using the roof plate material according to the present invention, after waterproofing the installation area of the roof plate material (base material such as field board) (laying of asphalt roofing etc.), one of the roofs. With the eaves edge on the side of the roof as the installation start site of the roof plate material, from there toward the roof ridge side, as shown in FIG. 7, on the water upper end 1b of the roof plate material (U) already arranged. The roof plate material is arranged while overlapping the underwater end 1a of the roof plate material (FIG. 7 shows only two roof plate materials). Then, when the arrangement of the roof plate material up to the ridge is completed, return to the eaves side once, and as shown in FIG. 8, let's newly arrange the roof plate material (U) in the lower joint 3 which has already been arranged. The upper joint 4 of the roof plate material (U') to be used is overlapped, and the water upper end 1b of the roof plate material (U') and the water lower end of the roof plate material (not shown) to be arranged next are overlapped. The work of arranging the roof plate materials up to the roof ridge while superimposing the portions 1a may be repeated up to the eaves edge on the other side of the roof. In the roof plate material according to the present invention, it is possible to connect the roof plate materials in the girder direction in advance and then connect the roof plate materials toward the ridge direction, and the construction procedure is not limited.

In FIGS. 7 and 8 above, the already arranged roof plate material (U) is replaced with a roof plate material according to the present invention, that is, a roof plate material having a recess 2 provided at an end portion 1a on the underwater side of the roof plate material. Although it is shown as used, when the already arranged roof plate material is, for example, a roof plate material located at the eaves edge of a building structure, as shown in FIG. 9, a roof without a recess 2 is provided. A plate material can also be used (however, the cross-sectional shape is the same).

When repairing or repairing an existing roof, as shown in Fig. 5 above, a cover that arranges roof plate materials according to the present invention on the old roof and connects the roof plate materials in the girder direction and the beam-to-beam direction. Apply the construction method. To connect the roofing boards to each other, follow the same procedure as above (when roofing a new roof).

A joint portion (not shown) can be provided on the water upper end portion 1b of the plate material main body 1. The joint portion is integrally connected to the end portion 1b and has the same dimensions as the plate thickness of the plate material main body 1, and is lower than the outer surface of the plate material main body 1, and the length is about the same as the stacking allowance K. It is preferable that the cross-sectional shape is substantially the same as the cross-sectional shape of the plate material main body 1 including the lower joint 3 and the upper joint 4, and such a joint portion should be provided. Therefore, there is an advantage that the overlapped portion of the plate material main body 1 can be held flat.

Since the roof plate material according to the present invention has high water stopping property, it is not necessary to perform sealing at the overlapping portion of the roof plate materials, and it is possible to simplify the construction work.

According to the present invention, it is possible to provide a highly water-stopping roof plate material useful not only for newly constructing a roof but also for repairing and repairing an existing roof.

1 Plate body 1a Lower end 1b Water upper end 2 Recess 2a Open end 2b Divided part 2'Recess 3 Lower joint 4 Upper joint L, R Width end edge S, T Longitudinal end Edge U Already arranged roof plate material V Roof plate material to be arranged P Air pocket Y Existing slate roof

Claims (4)

It is provided with a plate body having a contour shape partitioned by a widthwise edge and a longitudinal edge, and the underwater end of the plate body is the water upper end of the already disposed roof plate. On the other hand, by superimposing the water upper end portion of the plate material main body on the lower side of the water lower end portion of the roof plate material to be arranged, the plate material main bodies are connected to each other along the beam-to-beam direction. It is a roofing board material to match
The end portion of the water under side of the plate body, at least one concave to form an air pocket between the mutually at overlapping state between distract already disposed roofing sheet material toward the edge in the width direction Set up a place,
The recess is a roof plate material having a divided portion formed of a flat portion having the same level as the outer surface of the plate material main body. The recess has an open end that is open toward the outer surface of the roof plate material that has already been arranged, and is formed by locally raising the plate material body itself toward the outer surface side thereof. The roof plate material according to claim 1, wherein the roof plate material is characterized by the above. According to claim 1 or 2, the plate material main body has an upper joint and a lower joint that can be linked to the lower joint and the upper joint of other roof plate materials that are arranged adjacent to each other at the edge in the width direction. The listed roof plate material. The roof plate material according to any one of claims 1 to 3, wherein the plate material main body has a corrugated shape in which peaks and valleys are alternately arranged along the width direction thereof.

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