JPH03166454A - Combination of transversely shingling roof board and hanging piece for its fixation - Google Patents

Abstract

PURPOSE:To facilitate work by making the eaves-side molded part of an upper stage ridge-side transvesely shingling roof board, above a hanging member, and interposing the ridge-side molded part of a lower stage transversely shingling roof board between them, and drawing up the lower stage roof board to the eaves side for shingling. CONSTITUTION:On a transverse roof board member 1, there are installed a face board part 2, an edge-side molded part 3, and an eaves-side molded part 4. Moreover, the hanging member 21 is provided with a pressing member 24 where a fixing groove 25 is formed. Next, the molded part 4 of the upper stage member 1 is arranged above the member 21 attached to a rafter member A, and the molded part 3 of the lower stage member 1 is inserted and positioned between the lower member 1 and the molded part 4. And the fixing projection 9 of the molded part 3 of the lower stage member 1 is opposed to the groove 25, while the engaging groove 6 of the molded part 3 is opposed to the engaging projecting part 12 at the molded part 4 of the upper stage member 1. The lower stage member 1 is drawn to the eaves side, thus the groove 25 is engaged with the projecting part 9 and the projection part 12 with the groove 6. Accordingly, the work can be facilitated.

Description

[Detailed description of the invention]

Field of Industrial Application] The present invention relates to a combination of horizontal roofing panels and hangers for fixing them in a building, and more particularly, the invention relates to a combination of horizontal roofing panels and hangers for fixing them, and in particular, to a combination of horizontal roofing panels that engage each other, and In a horizontal roof structure in which the parts are attached by hanging members and the roofing is constructed sequentially from the ridge side to the eaves side, the horizontal roof plate members located on the upper ridge side and the lower eave side A horizontal roofing board and its attachment suspension that reduces the height of the engagement and fastening component with the horizontal roofing board member as much as possible, and also facilitates roofing construction work. This relates to the improvement of combinations with children. [Prior Art] In order to construct a horizontal roof of a building, horizontal roof board members and their fixing means are prepared, and the horizontal roof board members are connected from the ridge side to the eave side, that is, from the upper side. For example, there is a method called the "packing method," which was previously proposed by the present inventor, as a construction method that allows the roofing to be carried out by sequentially engaging the roof from the bottom downward.
As well as having various advantages after implementation,
Many proposals have already been made. As is well known, the general type of horizontal roof structure using this type of packing method is to leave a face plate in the center along the longitudinal direction of a long thin metal sheet, and First, the required number of horizontal roofing board members with a ridge-side molded part formed on one side and an eave-side molded part formed on the other side, and appropriate hanging members, are placed on the upper ridge side. A backup material such as wood wool cement board is interposed between the horizontal roofing board member (hereinafter simply referred to as the upper horizontal roofing board member) and the roof base, and the upper horizontal roofing board member is The corresponding part of the eave side molded part is temporarily held in place with the end of the backup material by the hanger member, and then the lower part is attached to the eave side molded part of the upper horizontal roof board member. After engaging the ridge side molded part of the horizontal roofing board member placed on the eave side (hereinafter simply referred to as the lower horizontal roofing board member) from the inside from below, the hanger member is attached to the rafter on the roof base side. Fix it to a member etc., and then. By inserting a backup material between the lower side horizontal roofing board members and the roof base and repeating the above operations in sequence, each horizontal roofing board member can be installed from the ridge side to the eaves as planned. The roof is raised over the sides. In addition, as another similar type, the ridge side molding part of the lower horizontal roof board member is engaged from the inside with the eave side molding part of the upper horizontal roof board member, and the rafter member on the roof base side is The molded part of the ridge side of the lower horizontal roof plate member is pressed from above to the hanger member fixed to the hanger member, etc., so that it fits elastically, and as in the previous example, each of these horizontal roof plate members A method has also been proposed in which roof shingles are extended from the ridge side to the eave side.

[Problem to be solved by the invention]

The conventional horizontal roof structure, in which horizontal roof board members are roofed from the ridge side to the eave side, is constructed as described above.
The main points when applying the former type of packing method are:
After all, the space for the back-up material that supports the face plate part of the horizontal roofing board member made of metal thin steel plates from the back side is used as the suspension member that is secured to the eave side molding part of the upper horizontal roofing board member. ．． In addition, by using it as an operation space for engaging the ridge side molded part of the lower horizontal roof board member, it is possible to raise the roof from the ridge side to the eave side as expected, On the one hand, this horizontal roof structure has various extremely excellent performances, but on the other hand, the engagement structure of the upper and lower horizontal roof plate members and the finished height of the fastening components after roofing are difficult. In addition, in order to fix the engaging part to the rafter member side, separate hanger members are required, and the roofing construction work itself is complicated. However, since the configuration is extremely complicated and the overall configuration is relatively complicated, it has the disadvantage of increasing costs. In the case of the latter type, when the ridge side molding part of the lower horizontal roofing board member is engaged from the inside with the eave side molding part of the upper horizontal roofing board member, this engaging part By pressing from above, the ridge side molded part of the lower side horizontal roofing board member is elastically fitted to the hanger member.
A height dimension corresponding to the vertical mating stroke required for this elastic mating is essential, and similarly, the finished height of the engagement and fastening components after roofing is increased, Katsuko also requires a separate suspender member,
Since the elastic fitting due to the springback of the thin steel plate itself is used to secure the engaging part, if the rigidity of the thin steel plate material is high, it will be difficult to fit and secure, resulting in poor workability. There were various undesirable problems such as a significant decrease in workability. This invention is an attempt to improve these conventional problems, and its purpose is to minimize the finished height of the engagement and fastening components after roofing. This design avoids bulkiness after finishing, reduces the overall cost by simplifying the structure itself, and allows easy and simple construction with good workability. A combination of horizontal roofing boards and hangers for fixing them in this type of horizontal roofing structure, in this case, horizontal roofing boards that can be engaged and fixed in sequence from the ridge side to the eaves side and then raised. It is to provide a combination with a wearable hanger. [Means for Solving the Problems J] In order to achieve the above-mentioned object, the combination of the horizontal roofing board according to the present invention and the hanger for fixing the roofing board is combined with the eave side molding part of the upper ridge side horizontal roofing board member. The engagement of the lower ridge side horizontal roofing board member with the ridge side molded part and the fixing to the hanger member can be simultaneously performed by pulling the lower eave side horizontal roofing board member toward the lower eave side. This is what I did. That is, in this invention, a face plate portion is left in the center along the longitudinal direction of a long metal sheet material, and a ridge side molded portion is formed on one side.
The other side has an eave side molded part, and the ridge side molded part has at least an engagement groove opened on the front side of the face plate part, and a fastening part bent toward the back side of the face plate part. A series of protrusions are formed, and the eave side molded part has a series of engagement protrusions that are bent toward at least the back side of the face plate part and correspond to the engagement grooves. The roof comprises a horizontal roof board member, an attachment piece part attached to at least the roof base side, and a hanger member consisting of a holding part having a fastening groove formed on the back side corresponding to the fastening protrusion part, A state in which the eave side molded part of the upper ridge side horizontal roof board is exposed above the hanger member attached to the base, and the ridge side molded part of the lower eave side horizontal roof board is interposed between them. Then, by pulling the lower eave-side horizontal roof board toward the eaves, the retaining protrusion is inserted and fixed into the retaining groove, and at the same time, the engaging groove is inserted and engaged with the engaging protrusion. This is a combination of horizontal roofing boards and hangers for fixing them. Further, in the combination of the horizontal roofing board and the hanger for fixing the horizontal roofing board, the present invention provides an engagement groove formed in the ridge side molded part of the horizontal roofing board member, and an engagement protrusion in the ridge eave direction. At the same time, the length of each attachment piece extending to the ridge side of the roof base is made shorter than the interval between the engagement groove and the engagement protrusion part, and the ridge side molded part of the horizontal roofing plate member At least a portion of the engagement groove and the fastening protrusion formed in the upper and lower parts overlap each other in the vertical position; It is characterized by having a crown part that bulges upwards between the top part and the top part.

[For production]

Therefore, in this invention, after the eave side molded part of the horizontal roof board member on the upper ridge side is arranged above the hanger member attached to the rafter member, the horizontal roof plate member on the lower eave side is placed between these parts. By inserting the ridge-side molded part of the board member, the starting end of the fastening protrusion on the ridge-side molded part of the horizontal roofing board member on the lower eave side is aligned with the fastening groove of the hanger member. The opening of the engagement groove in the molded part on the same ridge side can be opposed to the tip of the engaging protrusion part in the molded part on the eave side of the horizontal roof board member on the upper ridge side, and this In this state, by pulling the horizontal roof board member on the lower eave side toward the lower eave side, the retaining protrusion is inserted into the retaining groove and fixed, and at the same time, the engaging protrusion is inserted into the retaining groove. In contrast, the engaging groove can be inserted and engaged, and each horizontal roofing board member can be roofed from the ridge side to the eave side,
In this S, since the mutual engagement and fastening of the horizontal roof plate members on the upper ridge side and the lower eave side are performed in parallel to the roofing direction, the engagement and fastening components are The required height can be lowered, and the roofing work can be done extremely simply and easily. In addition, when the engagement groove and the fastening protrusion are located apart from each other by a predetermined distance in the direction of the eave, the mutual engagement and fastening of each horizontal roofing board member can be performed at separate positions. , the required height of the engaging and fastening components can be reduced to the limit, and when the engaging groove and the fastening protrusion are positioned so that at least a portion of them overlaps vertically, each horizontal roofing In order to be able to mutually engage and fasten the roof panel members one above the other,
It is possible to make the locking and fastening components more compact.
When bulging upward between the engagement groove and the fastening protrusion,
The rigidity of the engagement and fastening components can be ensured, and water can be prevented from seeping into the internal roof base.

【Example】

Hereinafter, various embodiments of combinations of horizontal roof plates and hangers for fixing them in the horizontal roof structure of buildings according to the present invention will be explained in detail with reference to FIGS. 1 to 7. , Figure 1(a). (b) is a perspective view showing the general structure of a horizontal roof plate member and a hanger member to which the first embodiment of the present invention is applied, and FIG. 2 is a horizontal roof structure constructed using each of the above members. FIGS. 3(a) to 3(d) are explanatory diagrams sequentially showing the same roofing construction process, and FIGS. 4 and 5 are cross-sectional views showing the engagement structure of the second implementation. A perspective view showing a general configuration of a horizontal roofing plate member to which the example is applied, and a sectional view showing an enlarged engagement configuration of a horizontal roofing structure constructed using the same horizontal roofing plate member and a hanger member. 6 and 7 are perspective views showing the general structure of a horizontal roofing board member to which the third embodiment is applied, and the engagement of the horizontal roofing structure constructed using the horizontal roofing board member and a hanger member. It is a sectional view showing an enlarged configuration. First, a first example will be described. The horizontal roofing board member (1) according to the first embodiment is shown in Fig. 1 (
As shown in a), a long metal thin steel plate is used, a face plate part (2) is left in the center along the longitudinal direction, a ridge side molded part (3) is formed on one side, and a ridge side molded part (3) is formed on the other side. Eave side molding on the side (4)
One ridge side molded part (3
), one end (2a) of the face plate (2) is folded upward and inward, and a predetermined engagement length is opened on the inside corresponding to the surface side of the face plate (2). (W, ), and this engaging folded part (5) is formed with a predetermined length (ws. (L''L<Wl
), however, (W2) will be described later), the parietal part (7) is formed by folding upward and outward by an equivalent dimension to bulge out to the upper side, and the outer end of this parietal part (7) is folded downward. The ridge side hanging part (8) formed by bending the ridge side hanging part (8), and this ridge side hanging part (8)
8) Lower end part to a predetermined length (Wi, (Wt>L/J=
Wa))) Lower and inner side by the equivalent dimension, that is, the face plate part (2
) and a contact portion formed by folding the end of the fastening protrusion (9) downward and extending outward. (lO) are provided in series, respectively, and in the case of the configuration of the first embodiment, the innermost innermost part of the engagement groove (6) and the fixing protrusion part <<9>> Distance (W
4) is also in the relationship (W4>Wa, however, (W.) will be described later), and on the other hand, on the eave side or a certain shaped part of the other side, the above-mentioned The eaves side hanging part (11) is formed by bending the other end (2b) of the face plate part (2) downward, and the lower end of this eave side hanging part (l1) is bent to a predetermined length (W. , (w+<ws)) are provided in a series by bending the engagement protrusions (l2) downward and inward by an equivalent dimension. As shown in FIG. 1(b), the hanger member (21) to be combined is
At one end of the mounting piece (22), a step (23)
is extended through the back side to a predetermined length (W6, (L<
The presser part (2) forming the fixing groove (25) with dimensions
4). Although the hanger member (21) is shown as a short single piece in FIG. Of course, you can make it into something. As shown in FIG. On each of the plurality of rafter members (A) installed in parallel with the roof slope, hold down the mounting piece part (22) of each hanger member (2l) with its holding part (24) on the ridge side. , That is, they are attached at predetermined intervals so as to face upward, and the stops of length dimension (W6) formed on the back side of the presser part (24) of each of these hanger members (21) are With respect to the attachment groove (25), attach the fixing protrusion (9) of length dimension (W2) at the ridge side molding part (3) of the horizontal roof board member (1) on the lower eave side with the interval ( Insert and secure with the stroke corresponding to W, ), and
At the same time, the horizontal roof plate member (1) on the upper ridge side is connected to the engagement groove (6) of length dimension (W, ) in the ridge side molded part (3) on the lower eave side. Similarly, the length dimension (WS) of the engaging protrusion part (12) on the eave side molded part (4) is set at the interval (
W4) The roof is raised by inserting and engaging with the corresponding stroke. That is, in the case of a horizontal roof structure using the combination of the horizontal roof board of the first embodiment configured as described above and its attachment hanger, the attachment protrusion for the attachment groove (25) is (9
) and the engagement protrusion (1) with respect to the engagement groove (6).
In order for the insertion and engagement in 2) to be carried out in the direction of the eaves within the range that is as limited as possible corresponding to the thickness of the material thin steel plate, the finish of these retaining and fastening components is This means that the height can be set as low as possible. Now, the procedure for hoisting the horizontal roof board member (1) and the hanger member (2l) on the rafter member (A) will be described with reference to FIG. As mentioned above, each rafter member (A) as the roof base side
Attachment piece (22) for each hanger member (2l) on the top
is attached in advance so that the holding part (24) is on the ridge side. That is, in a state in which each of the suspender members (2l) is arranged individually in this way, each of these suspender members (2l)
21) are positioned and arranged on each of the rafter members (A) that are arranged in parallel with each other in the lateral direction, in other words, in correspondence with each row of the horizontal roof board members (1) that are parallel to the ridge direction. Become. In this case, each hanger member (2l) may not necessarily be attached to all the rafter members (A), but may be arranged at appropriate intervals, and similarly, Without installing all the hanger members (21) in advance, each horizontal roof board member (to be described later) from the ridge side (
It may be installed each time the roof is raised in step 1). After installing and arranging each of the above-mentioned hanger members (2l), first, install the ridge side molded part (3) of the horizontal roof board member (1) on the upper ridge side.
) are properly attached, but in this state, the eave side molded part (4) of the attached horizontal roof board member (1) on the upper ridge side is attached to the upper part of the corresponding hanger member (21). The eave side molding part (4
) of the engaging protrusion (l2) and the suspender member (21
) is set so that the distance (W, ) between the presser part (24) and the tip end surface is in the relationship (wy=wa-w or Wt>Ws-L) (see FIG. 3(a)). )). Next, in the state shown in FIG. 3(a), the eave side molded part (4) of the horizontal roof board member (1) on the upper ridge side is lifted upward or slightly as shown by the arrow (3l). Then, the ridge side molded part (3) of the horizontal roof board member (1) on the lower eave side is inserted into the upper side of the hanger member (2l) as shown by the arrow (32), but in this state, By appropriately selecting each of the above dimensions, the horizontal roof board member (1
), the holding part (24) of the hanger member (2l) is received between the engaging folded part (5) and the fixing protrusion part (9), and the starting end of the fixing protrusion part (9) is received. The opening end of the engagement groove (25) on the back side of the presser part (24) can be opposed to the part (FIG. 3(b)). After that, in the state shown in FIG. 3(b), the eave side molded part (4) of the horizontal roof board member (1) on the upper ridge side that had been lifted upward was lowered, and In addition to the same state, by slightly pressing down downward as shown by the arrow (33), the engaging protrusion of the eave side molded part (4) of the horizontal roof board member (1) on the upper ridge side The tip of the part (l2) can be opposed to the open end of the engagement groove (6) of the ridge side molded part (3) of the horizontal roof board member (1) on the lower eave side (Fig. 3). (C)). Next, in the state shown in FIG. 3(C), the horizontal roof plate member (1) on the lower eave side is pulled toward the lower eave side as shown by the arrow (34), and the hanger member is removed. For the fastening groove (25) at the holding part (24) of (21), the fastening protrusion (9 ) is inserted and fixed, and at the same time,
Eave side molding part (4) of horizontal roof board member (1) on the upper ridge side
For the engagement projection part (12), the engagement groove (6) of the ridge side molded part (3) of the horizontal roofing board member (1) on the lower eave side
are inserted and engaged (Fig. 3(d)), and by repeating the above operation, each horizontal roofing board member (1
) can be easily roofed from the ridge side to the eave side, that is, from the top to the bottom. Therefore, according to this first embodiment, each hanger member (2
1), each operation of mutual engagement and fastening of the horizontal roofing board members (1) on the upper ridge side and the lower eave side is carried out in the vertical direction orthogonal to the roofing direction as in the past. Rather, it is parallel to the roofing direction, and each position of mutual engagement and fastening, and furthermore, the engagement groove (6) and the fastening protrusion part (9) in the ridge side engaging part (3) ) and the hanger member (
Since they are spaced apart in the direction of the eave to accommodate the retaining portion (24) of 2l), it is possible to hold these engaging grooves (6) and the fastening protrusions (9) in almost the same plane. So, as a result,
The required height of the engagement and fastening components can be reduced to the limit, and the presence of the crown part (7) bulging upward at the ridge side engagement part (3) This ridge side engaging part (
3) In addition to increasing the rigidity of the roof itself, the eave side engagement part after roofing (
4) increases the rigidity, and also prevents rainwater that infiltrates from the retaining parts from reaching the roof base, and also achieves overall simplicity and simplification in terms of structure, making it easy to install. It also has good workability and can be done extremely simply and easily without any skill required. Next, in the horizontal roofing board member (1) of the second embodiment shown in FIGS. 4 and 5, the horizontal roofing board member (1) of the first embodiment is
In step 1), the fastening protrusion (9) bent downward and inward from the ridge-side hanging part (8) of the ridge-side molded part (3) is inserted into the engagement groove (
6) so that they are superimposed on each other at the top and bottom positions, and the abutting part (lO) is omitted, and the ridge-side drooping part (8) side of the crown part (7) is further The face plate part (2) at the eave side molding part (2) on the upper stage side is bulged out more than that.
In the horizontal roofing board member (1) of the third embodiment shown in FIGS. 6 and 7, this In addition to the configuration of the horizontal roof plate member <<1) of the second embodiment, the engaging folded part (5) and the ridge side hanging part (8) are integrally formed,
The crown of the head (7) bulges upward in the shape of a mountain. Therefore, even in the case of the configurations of the second and third embodiments, by the same operation as the configuration of the first embodiment,
Each horizontal roofing board member (1) can be roofed from the ridge side to the eave side as planned, and in addition to achieving almost the same effect and effect, the bottom side of the engagement groove (6) Fastening protrusion (9)
Because they are inserted into the upper and lower positions and overlapped with each other, the configuration of the engaging and fastening parts is made even more compact and rigid.
By pressing the crown part (7) in 8) against the back surface of the other end (2b) of the face plate part (2) in the upper eave side molding part (2), it is possible to completely prevent the infiltration of rainwater, etc. It is possible to achieve this goal. [Effects of the Invention] As described in detail above, according to the present invention, the ridge-side molded portion has an engagement groove that is open at least on the front side of the face plate and that is folded toward the back side of the face plate. A curved fastening protrusion is formed on each of them, and an engagement protrusion is provided on the eaves side molding part and is bent toward at least the back side of the face plate part and corresponds to the engagement groove. a horizontal roofing plate member formed of a horizontal roof plate member formed with a horizontal roof plate member; a hanging member member consisting of a holding part formed with a fixing groove corresponding to the fixing protrusion part on the back side of at least an attachment piece part attached to the roof base side; After placing the eave side molded part of the upper ridge side horizontal roof board member above the hanger member, insert the ridge side molded part of the lower eave side horizontal roof board member between these parts. By doing so, the starting end of the fastening protrusion on the ridge side molding part of this lower eave side horizontal roof board member is connected to the opening of the fastening groove on the hanger member. The openings of the matching grooves are respectively opposed to the tips of the engagement protrusions on the eave side molded parts of the upper ridge side horizontal roof plate member, and in this state, the lower eave side horizontal roof plate member is attached to the lower eave side. By pulling it to the side, the fastening protrusion is inserted into the fastening groove and fastened to the roof base, and at the same time, the engaging protrusion is inserted into the fastening groove. By inserting a groove, it is possible to mutually engage the horizontal roofing board members on the lower eave side with the horizontal roofing board members on the upper ridge side, and in this way, from the ridge side of each horizontal roofing board member It becomes possible to roof the eaves. In this way, since the mutual engagement and fastening of the horizontal roof sheet members on the upper ridge side and the lower eave side are performed in parallel to the roofing direction, the engagement and fastening configuration is The required height at each section can be set low, and roofing work can be done extremely simply and easily, improving work efficiency. Furthermore, by locating the engagement groove and the fastening protrusion at a predetermined distance in the direction of the eave, mutual engagement and fastening of each horizontal roofing board member can be performed at separate positions. In addition, by setting the required height of the engagement and fastening components as low as possible, and by locating the engagement groove and the fastening protrusion so that at least a portion thereof overlaps vertically,
Since the mutual engagement and fastening of each horizontal roofing board member can be carried out overlappingly, it is possible to make the engagement and fastening components more compact and highly rigid. By bulging upward between the two parts, it has excellent features such as securing further rigidity of the engagement and fastening components and preventing water from seeping into the internal roof base. be.

[Brief explanation of the drawing]

Figure 1(a). (b) is a perspective view showing the general structure of a horizontal roof plate member and a hanger member to which the first embodiment of the present invention is applied, and FIG. 2 is a horizontal roof structure constructed using each of the above members. FIGS. 3(a) to 3(d) are explanatory diagrams sequentially showing the same roofing construction process, and FIGS. 4 and 5 are cross-sectional views showing the engagement structure of the second implementation. A perspective view showing a general configuration of a horizontal roofing plate member to which the example is applied, and a sectional view showing an enlarged engagement configuration of a horizontal roofing structure constructed using the same horizontal roofing plate member and a hanger member. 6 and 7 are perspective views showing the general structure of a horizontal roofing board member to which the third embodiment is applied, and the engagement of the horizontal roofing structure constructed using the horizontal roofing board member and a hanger member. FIG. 2 is an enlarged cross-sectional view of the configuration. 1... Horizontal roof board member, 2... Face plate part, 3... Ridge side molded part, 4)... Eave side molded part, 5... Engagement folded part, 6...Engagement groove (length (W+)), 7...Parietal part (length (W3)), 8)...ridge side hanging part, 9...stopping butt Piece (length (W2)), 10)...
...Abutment part, 11)...Eave side hanging part, (12...Engagement protrusion part (length (We)) (21...
... Hanging member, (22... Mounting piece part, (23... Step part, (24... Holding part, (25... Fixing groove (length (we)) (A)...
Rafter members.

Claims (4)

[Claims] (1) Leaving a face plate part in the center along the longitudinal direction of the long metal plate material, having a ridge side molding part on one side and an eave side molding part on the other side, said ridge side molding part is formed with a series of engagement grooves that are open at least on the front surface side of the face plate part, and fastening protrusions that are bent toward the back side of the face plate part, and the eave side molded part has at least a horizontal roofing plate member formed of a series of engagement protrusions that are bent toward the back side of a face plate portion and correspond to the engagement grooves; and an attachment piece that is attached to at least the roof base side; and a hanger member consisting of a holding part with a fastening groove corresponding to the fastening protrusion formed on the back side, and a horizontal roof on the upper ridge side above the hanger member attached to the roof base side. With the eave-side molded part of the board exposed and the ridge-side molded part of the lower eave-side horizontal roof board interposed between them, the lower eave-side horizontal roof board is pulled toward the eave side. A horizontal roof board and its fastening hanger, characterized in that a fastening protrusion can be inserted and fixed into a fastening groove, and at the same time, an engagement groove can be inserted and engaged with the engagement protrusion. combination with child. (2) Provide a predetermined distance in the ridge eave direction between the engagement grooves and fastening protrusions formed on the ridge side molding of the horizontal roofing board member, and the length of each attachment piece extending toward the ridge side of the roof base. The engagement groove,
2. The combination of a horizontal roof board and a hanger for fixing the same according to claim 1, wherein the distance is shorter than the distance between the engaging protrusions. (3) The engaging groove formed in the ridge-side molded part of the horizontal roofing plate member and the fastening protrusion part are at least partially overlapped in the vertical position. A combination of horizontal roofing boards and ropes for securing them. (4) A crown part that bulges upward is provided between the engagement groove formed in the ridge side molded part of the horizontal roofing board member and the fastening protrusion part. A combination of horizontal roofing boards and hangers for fixing them.