JPH0762781A - Roof structure and construction thereof - Google Patents

Abstract

PURPOSE:To facilitate the transport of a roof truss constitution member and facilitate the water shielding execution of the joint part of a roof surface and the execution of an eaves part at a site. CONSTITUTION:A plurality of roof trusses 3 having no each eaves part are arranged in parallel, and an eaves part roof frame unit 4 having the ridge direction width ranging over a plurality of roof trusses 3 is joined with each roof truss 3. A roof panel 7 is installed over the roof truss 3 and the eaves part roof frame unit 4. On the eaves part roof frame unit 4, an eaves ceiling 8 and a gutter 9 are installed previously in a factory, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure in a unit building and a method for constructing the roof structure.

[0002]

2. Description of the Related Art Conventionally, there is a roof structure shown in FIGS. 3 and 4 as a roof structure in a unit building. The roof structure of FIG. 3 is constructed by joining a plurality of roof unit boxes 21a and 21b having the same plane dimensions as the unit box 20 for the living room and the eaves unit 22 to each other with bolts or the like. is there. In the roof structure shown in FIG. 4, a plurality of roof trusses 23 are installed side by side on a unit box 20 for living room, and roof panels are installed on these roof trusses 23.

[0003]

In the case of the roof structure shown in FIG. 3, the entire roof is a three-dimensional unit box 21a, 21.
Since it is transported from the factory to the site in the state of b and 22, the transportation volume becomes large, and it is necessary to transport a large size, which is a disadvantage in transportation.
Further, since a large number of unit boxes 21a, 21b and the eaves-edge unit 22 are joined together, the number of joints increases, and the number of construction sites increases. Especially, the units 21a, 21 are placed on the roof surface.
Since horizontal joints are generated in b and 22, there is a problem that it is difficult to construct a roof finishing material due to the rain and the like.

In the case of the roof structure shown in FIG. 4, the eaves ceiling 24
It is necessary to carry out the construction of the construction site on site, and therefore scaffolding must be established. In this case, in a unit construction house, it is generally possible to construct the entire building without installing scaffolds, but with the roof of FIG.
It is necessary to build a scaffold only for the construction of eaves such as gutters, and the construction efficiency is poor.

It is an object of the present invention to provide a roof structure and a method of constructing the same, which makes it easy to transport the constituent members of the roof and can be easily installed without a scaffolding in the field.

[0006]

The roof structure of the present invention comprises:
A plurality of roof trusses that do not have eaves and are installed in parallel with each other, an eaves roof frame unit that has a girder width across the plurality of roof trusses, and is joined to each roof truss, and these roof trusses and eaves And a roof panel installed over the roof frame unit.

The roof construction method of the present invention comprises a step of arranging a plurality of roof trusses without eaves in parallel, and an eaves roof frame unit having an eave ceiling having a girder width extending over the plurality of roof trusses. To the roof truss and mounting roof panels across the roof truss and eaves roof frame unit. In this construction method, a gutter may be attached to the eaves roof frame unit before being joined to the roof truss.

[0008]

The roof component is mainly composed of the flat roof truss and the roof panel, and the three-dimensional component is only the eaves roof frame unit, which is convenient for transportation. Further, since the roof panel is installed across the roof truss and the eaves roof frame unit, a joint between the roof panels along the horizontal direction does not occur on the roof surface, and only a vertical joint is required. Therefore, on-site construction at the joint portion of the roof surface becomes easy.

If the eaves roof frame unit is provided with eaves ceilings in advance, it is not necessary to assemble scaffolds for constructing eaves ceilings on site. Further, the eaves roof frame unit can be used as a scaffold by straddling a scaffolding plate while being joined to the roof truss. That is, the joints of the eaves ceiling, the gutters of the eaves, or the joining and makeup of the air conditioning pipes arranged in the eaves can be performed using the eaves roof frame unit as a scaffold. If the gutters on the eaves are installed on the eaves roof frame unit in advance, the on-site construction will be less and the workability will be improved, but there is also the risk of damage during transportation, so depending on the actual building, the eaves roof can be used. Select whether to pre-install on the frame unit.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an exploded perspective view showing a main part of a roof structure of a unit building, and FIG. 2 is an explanatory view showing a construction procedure of the roof structure. In the roof structure shown in FIG. 1, a plurality of roof trusses 3 in which the eaves are omitted are provided in the trunk gap 2 formed of the ceiling beams of the unit box 1 for living room (FIG. 2) that constitutes the upper floor.
Are arranged side by side with a predetermined space between columns. On the eaves side of these roof trusses 3, an eaves roof frame unit 4 having a girth width across a plurality of roof trusses 3 is joined by bolts 5 and nuts 6. In the rooftop structure configured as described above, a large roof panel 7 that is continuous from the ridge to the eaves is installed over both the roof truss 3 and the eaves roof frame unit 4. Eaves roof frame unit 4
Has a eaves ceiling 8 attached to the lower surface and a gutter 9 at the tip.
Shall be installed.

The procedure for constructing the roof structure will be described with reference to FIG. First, as shown in FIG. 2 (A), a plurality of roof trusses 3 are provided side by side in the column direction on the unit box 1 for living room. Next, as shown in FIG. 2B, the eave roof frame unit 4 provided with the eave ceiling 8 and the gutter 9 is lifted up and joined to the eaves side of the installed roof truss 3. In this state, join the eaves ceiling 8 and the gutter 9 between the eaves roof frame units 4 and 4, join a vertical gutter (not shown), or pull out the air conditioning duct 11 from the eaves ceiling 8 to the outside. To do. In that case, as shown by a chain line in FIG. 1, a scaffolding plate 10 can be bridged between the beams 4a, 4a of the eaves roof frame unit 4 and can be used as a scaffolding for the above-mentioned joining work and the like. Therefore, it is possible to save the trouble of specially setting the scaffold on the spot.

Thereafter, the roof panel 7 is joined and fixed by bolts or the like from the roof truss 3 to the eaves roof frame unit 4 as shown in FIG. 2 (C). After this joining,
A worker installs waterproof construction on the vertical joint between the roof panels 7, 7 that are adjacent to each other on the left and right. This roof panel 7,7
Since only the vertical joints are required for waterproofing between them, simple work is required.

According to the roof structure and the roof construction method, the roof constituting members are mainly composed of the roof truss 3 and the roof panel 7, which are planar members, and thus are advantageous for transportation. Moreover, since the eaves roof frame unit 4 is used, on-site construction of the eaves becomes easy. In addition, the roof panels 7, 7 need only be joined in the vertical direction, which facilitates waterproof construction on site.

[0014]

According to the roof structure and roof construction method of the present invention, a roof truss is constructed by combining a roof truss and an eaves roof frame unit, and a roof panel is laid over the roof truss and the eaves roof frame unit. Since the structure is adopted, the roof structural members are mainly planar members, which is advantageous for transportation, and the roof panels can be joined only in the vertical direction, and the roof finishing on-site construction becomes easy. Further, the eaves roof frame unit can be used as a scaffold when performing on-site joining of the members of the eaves, and the labor of separately assembling the scaffold can be saved.

Further, when the eaves roof frame unit is provided with eaves ceilings or gutters in advance, the on-site work can be saved and the on-site workability is further improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a main part of a roof structure according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a method for constructing the roof structure.

FIG. 3 is a front view showing an example of a conventional roof structure.

FIG. 4 is a front view showing another example of the conventional roof structure.

[Explanation of symbols]

3 ... Roof truss, 4 ... Eaves roof frame unit, 7 ...
Roof panel, 8 ... eaves ceiling, 9 ... gutter

Claims (3)

[Claims] 1. A plurality of roof trusses that do not have eaves and are arranged in parallel with each other, and an eaves roof frame unit that has a girder width across the plurality of roof trusses and is joined to each roof truss, A roof structure with roof trusses and roof panels installed across the eaves roof frame unit. 2. A process of arranging a plurality of roof trusses without eaves side by side, and an eaves roof frame unit having an eave ceiling having a girder width across the plurality of roof trusses is joined to the roof truss. A method of building a roof including the steps of installing roof panels across these roof trusses and eaves roof frame units. 3. The method for constructing a roof according to claim 2, wherein a gutter is attached to the eaves roof frame unit before joining to the roof truss.