JPS61130543A - Construction of roof by metal roof panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method of constructing horizontal metal sheet roofs, in particular to a method for constructing horizontal metal sheet roofs on roofing sheet-like panels of a predetermined size so as to be suitable for prefabricated residential roofs. A construction method for horizontal prefabricated roofs in which a large number of horizontal metal roof panels are fixed in advance at a factory, and these factory-produced panels are arranged and fixed horizontally against the slope on site. It is related to.

(Conventional technology) Conventional roofing construction methods using metal roofing boards include vertical roofing, in which metal roofing boards are placed vertically with respect to the slope, and horizontal roofing, in which metal roofing boards are placed horizontally. The shape is known.

All of these methods involve placing metal roofing sheets one by one on top of the roofing board, but recently, as part of the prefabricated house construction method aimed at economical efficiency and shortening the construction period, roofing is also being done. A construction method has come to be used in which metal roofing sheets are fixed on the panels in advance on the ground, and then the panels with the roofing sheets are hoisted up by a crane and installed on site.

By the way, in this type of prefabricated membrane roofing method in the past, in order to ensure that the metal roofing sheets placed on the joints between each panel can be properly connected, the roofing sheets are temporarily installed vertically as shown in Figure 7. The reason for this is that, as shown in the figure, in the vertical roofing boards 20, chevron-shaped ribs 21 are provided along the length of each board for reinforcement and jointing. The ribs 21b of the roof plate 20b fixed in advance to the adjacent panel 22b can be overlapped and nailed 23 on top of the rib 21a of the roof plate 20a in the panel 22a. This is because it has the advantage of being easy to construct.

On the other hand, when using horizontal metal roofing as a prefabricated roof construction method, Fig. 8 is a hypothetical diagram.
25, which was fixed in advance under the water.
The lower edge part 26a of the roof panel 24b and the upper edge locking part 26b of the roof plate 25b fixed in advance on the water side of the lower panel 24b are simply overlapped as in the case of the vertical roofing type shown in FIG. The lower edge 26a of the roof plate 25a cannot be connected by simply connecting the roof plate 25a to the upper edge locking part 26b of the roof plate 25b as shown by the dotted line, and the connection can be tightened. However, there is a problem in that the lower edge 26a cannot be press-molded into a hook shape in advance.

Therefore, in the past, horizontal roof shingles were thought to be unsuitable as a prefabricated type because they were difficult to construct.

[Problem that the invention seeks to solve]

The object of the present invention is to solve the problems of the conventional prefabricated horizontal roof construction method and to enable efficient construction of horizontal roofs using the prefabricated method. Therefore, in the present invention, the length of the horizontal metal plate is the same as the length of the eaves and is fixed on the horizontally long panel, but the lower edge of the lowest roof plate in the upper panel is This upper panel is fixed on the same panel with a hanger fixed to the underwater side, and the upward hook-shaped insertion end provided on the upper edge of the uppermost roof plate of the lower panel is inserted into the lower surface of the hanger. By inserting it deep, you can easily connect the roof sheets of the upper and lower panels,
The prefabricated horizontal roof can be constructed efficiently.

〔Example〕

Next, an embodiment of the roofing method according to the present invention will be explained with reference to drawings. Fig. 1 is a perspective view showing the configuration of a panel 1 used in this method, and Fig. 2 is a perspective view showing the structure of a panel 1 used in this method. 1 shows cross-sectional views of different types of horizontal metal roofing sheets.

Panel L serves as a roof board, and as shown in Figure 3, its length is the same as the length of the eaves of the roof to be thatched, and its width W is about a quarter of the length of the gable. It is made of oblong plywood with a certain size.

As shown in FIG. 2, the horizontal metal roofing plates attached to these panels 1 basically consist of a main structural roofing plate 2A, a hanger 2B, and a connection-like roofing plate 2C. Each of these roof plates and hangers consists of a long plate with the same length as the length of panel 1, and is press-molded along the length direction so that it has a predetermined cross-sectional shape. has been done.

Of each roof board, the main structural roof board 2A has a locking end 4 formed by an upward S-shaped folded side 3 on its upper edge along the length direction, and a fixed side 5 connected via this folded side 3. have,
This fixed side 5 has a protrusion 6 for nailing in the middle and a barbed end 7 at the tip edge, while a hooked end 8 folded downward is provided at the lower edge. In addition, an S-shaped folded side 9 is provided in the middle part, and two upper and lower horizontal roofing boards 2 are provided in one board width.
The shape is such that a and 2b are formed.

The hanger 2B has a nailed fixed end 1 with a water return end 10 on one side.
One side of the locking end 12 is made to stand upward, extend toward the bottom of the panel, and then folded downward in the direction of the fixed end 11, and the tip of this locking end 12 is shaped like a It has a concave groove portion 13 bent into a letter shape.

Further, the connection-like roofing board 2C has a hook end 18 and a folded side 19 similar to the main structure roofing board 2A at the lower edge and the middle part, and a hook-shaped insertion end 14 which is folded upward at the upper edge. is provided.

As shown in FIG. 1, a hanger 2B is placed on the panel panel 1 in advance in the factory so that the locking end 12 shown in FIG. It is fixed by the nailed fixed end 11 so that it is facing the same direction. Next, the upper horizontal roofing plate 2A is placed on the upper surface of the hanger 2B, and the hooked end 8 of the lower edge of the plate 2A shown in FIG. 2a is inserted and locked into the locking end 12 of the hanger 2B. Center it as shown and nail the fixed side 5 of the upper edge. Thereafter, in the same manner, each upper horizontal roofing board 2A is attached to the hook end 8 of the lower edge toward the water side of the panel 1, leaving a space 15 for one connecting rail roofing board 2C at the top. The upper horizontal roofing board 2 is on the underwater side.
The upper edge locking end 4 of A is inserted into the upper edge locking end 4, and the upper edge fixing side 5 is fixed with a nail.

Panels 1 were manufactured to the same specifications in advance in the factory as described above, and one connecting crosspiece roofing board 2C attached to the top of each panel 1 was temporarily fixed with tape or the like. Shipped in condition.

At the construction site, each panel 1 is lifted up by a crane and placed on the main building 16 as shown in FIG. 4, and in this state is fixed to the main building 16 from the back side of the roof with fasteners 17.

When each panel 1 is fixed on the main building 16, as shown in FIG. The connecting crosspiece roofing plates 2C are inserted into the joints of the upper and lower panels, respectively, as shown in FIG. That is, the hooked end 18 of the lower edge of the connecting rail roofing plate 2C is inserted and engaged with the upper edge locking end 4 of the uppermost main structural roofing plate 2A in the lower panel 1a, and the hooked end 18 of the upper edge The hanging end 14 is fixed to a hanger 2B to which the lower edge hook end 8 of the lowermost main horizontal roofing board 1 in the upper panel 1b is fixed.
Insert into the lower surface of the locking end 12 of.

〔Effect of the invention〕

As described above, in the present invention, a large number of horizontally placed metal plates having the same length as the eaves are fixed on the ground in advance on a horizontally long panel, and the same panels are hoisted by a crane to the roof. By placing the panels on the main roof and connecting and fixing the back side of each panel to the roof main building, it is no longer possible to install horizontal metal plates one by one on the roofing board as in the conventional roofing method. In comparison, construction costs and time can be significantly reduced.

However, when using conventional horizontal metal plates as shown in Figure 8 for a prefabricated roof, there is a problem that they cannot be connected by simply overlapping them like the metal roof plates used in the vertical roof construction method. On the other hand, in the present invention, the lower edge of the lowermost board of the upper horizontal roofing boards 2A attached to the main part of the panel is fixed in advance to the lower edge of the same panel with a hanger 2B.
so that the upward hook-shaped insertion end 14 of the upper edge of the connecting rail 2C arranged at the joint between the upper and lower panels can be inserted deep inside the lower surface of the locking end 12 of the hanger 2B. Therefore, the continuation of the roof shingles in each panel is connected to the connecting crosspiece shingle 2.
This has the advantage that it can be easily performed by simply inserting the C.

Furthermore, the hanger 2B not only fixes the lower hooked end 8 of the lower edge of the main horizontal roofing plate on the panel by the locking end 12 protruding downwardly, but also Since a U- or 7-shaped concave groove portion 13 is provided in the holder, when the hook-shaped insertion end 14 of the upper edge of the connecting frame plate 2C is inserted deep inside the lower surface of the locking end 12 of the hanger 2B, The springback action of the groove 13 has the effect that the hook-shaped insertion end 14 can be reliably locked without fear of coming off.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a panel used in the construction method of a horizontal metal plate roof according to the present invention, and Fig. 2 is a partial perspective view showing the shapes of various horizontal metal plates used in the construction method of the present invention. , Fig. 3 is a perspective view showing the arrangement of panels, Fig. 4 is a partial cross-sectional view of the panel placed on the main roof, and Fig. 5 is the configuration before connecting the connecting railing board to the panel joint. Figure 6 is a cross-sectional view showing the configuration after connecting the connecting beam roofing plates, Figure 7 is a cross-sectional view showing the configuration of a conventional vertically-roofed prefabricated roof, and Figure 8 is a conventional general FIG. 2 is a cross-sectional view assuming that a prefabricated roof is constructed using horizontal metal roofing sheets. In the figure, 1: panel, 2A: upper horizontal roofing board, 2B: hanger, 2C: connecting crosspiece roofing board, 3, 9, 19: S-shaped folded side, 4: locking end, 5: fixed piece, 6: Projections, ? , 10: water return end, 8, 18: hook end, 11: fixed end,
l2: Locking end, 13: Concave groove part

Claims (2)

[Claims] (1) A prefabricated roof construction method in which multiple horizontal metal roofing panels are fixed in advance and connected and fixed on the roof purlin, with hangers attached to the underwater side of the upper panel. is fixed, and the downward hook end of the lower edge of the lowermost main horizontal roofing board in the upper panel is engaged with the locking end of the hanger, and the joint part of the upper and lower panels is By inserting the upward hook-shaped insertion end of the upper edge of the connecting horizontal roofing plate, which has the lower edge hook connected to the upper main horizontal roofing plate, into the deep inside of the lower surface of the hanger locking end of the upper stage panel, A roof construction method using horizontal metal roofing sheets, characterized by the roofing sheets of the upper and lower panels being interconnected. (2) After the hanger attached to the underwater side of the upper panel extends the side of the nailed fixed end to the underwater side, the locking end is folded back to the fixed end side, and the locking end of this locking end is 2. A method of constructing a roof using horizontal metal roofing plates according to claim 1, which has a bent groove at the tip.