JPH11293857A - Prefabricated building such as added room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent room temperature in a prefabricated building such as an added room having a pitched roofing from rising during the summer by enhancing the heat insulation performance of a heat insulating roof, to avoid dew condensation on the surface of a rafter member during the winter, and to enhance indoor heat retainability by reducing the possibility that the temperature of the rafter member which becomes high during the summer and which becomes low during the winter is transmitted to the inside of the room. SOLUTION: A prefabricated building such as an added room has an inner ceiling 2 provided inside and parallel to a pitched rooting 1 via a ventilating space 3. At least either one of the pitched roofing 1 and the inner ceiling 2 has a heat insulating property. The pitched roofing 1 is supported by a rafter member 5 made of an extruded shape and an inner ceiling mounting member 6 made of en extruded shape is mounted on the lower surface of the rafter member 5 via heat insulating packing. The side edge 2a of the inner ceiling 2 is supported against the inner ceiling mounting member 6 (6A).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled building such as an extension room.

[0002]

2. Description of the Related Art Conventionally, an insulated roof in an assembled building such as an extension room uses a sloped roof material lined with a heat insulating material.

[0003]

However, the heat insulation performance of the conventional heat-insulated roof in an extension building such as an extension room is not sufficient, and the room temperature rises in summer and dew forms on the surface of the rafter member in winter. There was a problem of doing.

[0004] It is an object of the present invention to solve the above-mentioned problems of the prior art, to enhance the heat insulating performance of an insulated roof, to prevent a rise in room temperature in summer, and to suppress the occurrence of dew condensation on the surface of a rafter member in winter. Can be done,
An object of the present invention is to provide an assembling room such as an extension room, which makes it difficult to transmit the temperature of rafter members, which become high in summer and low in winter, to a room, and can improve the heat retention in the room.

[0005]

In order to achieve the above object, in an assembled building such as an extension room according to the present invention, an inner ceiling is provided in parallel with a sloping roof material through a ventilation gap. And at least one of the sloping roof material and the inner ceiling has a heat insulating property.

[0006] The inclined roofing material is supported by a rafter member made of extruded profile, and an inner ceiling mounting member made of extruded profile is provided on the lower surface of the rafter member with a heat insulating material such as synthetic resin or synthetic rubber. The inner ceiling is attached to the inner ceiling with a side edge portion of the inner ceiling.

[0007]

Embodiments of the present invention will now be described with reference to the drawings.

In this specification, the front, rear, left and right are based on FIG. 2, the front is the left side of FIG. 2, the rear is the same right side, and the left is the front side of the drawing sheet and the right is the right side. It means the back side. The term aluminum is used to include its alloy.

The prefabricated building according to the present invention is applied to an extension room such as an extension room.

Referring first to FIGS. 1 and 2, an extension room (10) comprises a sloped roofing material (1) lined with a heat insulating material (52) attached along the side wall of an existing house (20). Are supported by a required number of rafter members (5) made of extruded aluminum hollow members, and the eave-side end of each rafter member (5) is supported by an eave girder (4). A rear frame member (11) made of an extruded aluminum member is attached to a rear end of each rafter member (5) via a connecting member (35) having a substantially U-shape as viewed from a plane.
1) is a hinged part (14) that can be hung on a roof receiving member (12) made of an extruded aluminum member fixed to a predetermined height of the side wall of an existing house (20) with bolts (26) via a hinge part (14). Has been stopped.

In the present invention, the ventilation gap (3) is provided inside the inclined roofing material (1) lined with the heat insulating material (52).
An insulated inner ceiling (2) is provided in parallel with a gap (W) between the sloping roof material (1) and the inner ceiling (2).
Are relatively large.

The front, rear, left and right side edges (2a) of the inner ceiling (2)
Is supported by an inner ceiling mounting member (6) made of extruded aluminum material and attached to the lower surface of the rafter member (5). Three types of profiles (6A) (6B) for the inner ceiling mounting member (6)
(6C), and the front and rear edges (2a) of the inner ceiling (2)
As shown in FIGS. 2, 3 and 5, the mounting members (6A) and (6B) supporting the (2a) are passed over the lower surfaces of the mutually adjacent rafter members (5) and (5) and screwed ( Fixing part (6a) fixed by 25)
And an overhang (6b) for receiving the side edge (2a) of the inner ceiling (2). In contrast, the left and right side edges of the inner ceiling (2) (2
a) The mounting member (6C) supporting (2a) is, as shown in FIG.
A fixing portion (6a) fixed to the lower surface of the bottom wall (32) of the rafter member (5) by screws (25), and right and left side edges of the inner ceiling (2) projecting from the fixing portion (6a) to the left and right sides. Overhang to receive part (2a) (2a)
(6b) and (6b). On the upper surface of the fixing part (6a) of the inner ceiling mounting member (6C), an inner expansion groove is provided, and a heat insulating packing (bead) (7) is attached, and the bottom wall of the rafter member (5) is provided. A packing (7) is interposed between the lower surface of (32) and the inner ceiling mounting member (6).

Next, FIG. 3 and FIG. 4 show an extension room (10).
The details of the mounting structure on the existing house (20) side are shown. That is, on both side walls (31) and (31) at the rear end of each rafter member (5), both right and left overhangs of the substantially U-shaped connecting member (35) as viewed from the plane are provided.
(37) and (37) are fixed by screws (25) and (25), respectively, and a fixing portion (36) in the middle of the overhang portions (37) and (37) is fixed to the rear frame member (11) by screws (25). Fixed.

The lower end of the rear frame member (11) is provided with a hinge component (16) having a hook-shaped engaging portion at the tip, while the lower end of the roof receiving member (12) has a concave hinge component. Part (15) is provided, and the hinge part (16) on the rear frame member (11) side is hooked on the hinge part (15) on the roof receiving member (12) side, so that the hinge part (14) Are formed.

[0015] A concave portion is provided in the middle of the height of the rear frame member (11).
(44) is provided, a rafter member (5) inside the concave portion (44).
A rear ventilation gap (46) is formed between the rear end and the rear end.

The fixing part (6B) of the inner ceiling mounting member (6B) attached to the rear end of the rafter member (5) below the hinge forming part (16) at the lower end of the rear frame member (11). A ventilation rear gap (47) is also formed between the air gap and the space 6a).

At the upper end of the rear frame member (11), a roof material rear end pressing portion (48) is provided so as to protrude forward, and the roof receiving member (1) is provided.
At the upper end of 2), an overhanging part (13) covering above the rear end of the roofing material
Are provided so as to protrude forward, and a sealing material (43) is provided between the front end and the rear end of the roofing material (1).

On both left and right sides of the upper wall portion (30) of each rafter member (5), roof material receiving portions (33) and (33) are provided.
At the center of (30), convex strips (34) (34) for tapping screws are provided in parallel.

The side edges of the roofing materials (1) and (1) adjacent to each other on the left and right sides are the upper wall portion (30) of each rafter member (5) and the roofing material receiving portions on both right sides.
(33) Received by (33) and pressed down from above by packing members (42) and (42) by roofing member (40) made of extruded aluminum, and tapping screw (41) is attached to rafter member
By being screwed between the ridges (34) and (34) of the upper wall (30) of the (5), the side edges of the roofing material (1) and (1) become the respective rafter members (5).
It is fixed to.

Next, FIGS. 5 and 6 show an additional room (10).
The eaves side structure is shown in detail. That is, eaves girder
(4) is a core material (17) having a substantially U-shaped cross section, a vertical portion (18a) covering the rear surface of the core material (17), and an upper wall portion (18b) covering the upper surface of the core material (17).
And a front plate (19) that covers the front opening of the core (17). A guide rail (21) for guiding the window (8) is attached to the lower surface of the eaves girder (4).

A gutter member (9) is fixed to the eaves-side end of each rafter member (5), and the left and right side walls (31) and (31) of the eaves-like portion of each rafter member (5) are provided. L-shaped bracket (24) along the outer surface
(24) is arranged, and the vertical portion (24b) of the L-shaped bracket (24) (24)
(24b) is attached by bolts (26) and nuts (27) passing through the rafter member (5), and the L-shaped bracket
The horizontal portions (24a) (24a) of (24) and (24) are mounted on the upper wall portion (18b) of the rafter receiving member (18) and are attached by screws (25) and (25).

A roof material receiving member (22) made of an extruded aluminum material and having a substantially L-shaped cross section is attached to the upper wall portion (18b) of the rafter member receiving member (18). The roofing material (1) is received via a packing (23) attached to an internal enlarged groove (28) provided at the upper end of the vertical portion (22a). In addition, the vertical part (22a) of the roofing material receiving member (22)
The lower end of the roofing member receiving member (18) is fitted into a concave streak (38) provided at the center of the upper wall portion (18b) of the rafter member receiving member (18), and the rear protrusion (22b) of the roof material receiving member (22) is fitted. Hanging part (2
9) is fitted into a concave strip (39) provided at the rear end of the upper wall (18b) of the rafter receiving member (18).

Then, as shown in FIG. 6, each rafter member
Front ventilation gaps (45) (45) are formed between (5) and the front end portions of the roof material receiving members (22) on both the left and right sides.

Here, the roofing material (1) is, for example, as shown in FIG. 7, a roofing plate (51) made of plywood, a heat insulating material (52) lined with this, and a lower surface thereof. It is composed of a PVC steel plate (53) as an interior material and a galvanium steel plate (54) covering the top and side surfaces.

As shown in FIG. 8, for example, the inner ceiling (2) is provided with a heat insulating material (61), a lower aluminum coating material (62) attached to the lower surface thereof, and a lower heat insulating material (62) attached to the lower surface thereof. It is composed of an interior material (63) and an upper aluminum foil coating material (64) covering the upper surface of the heat insulating material (61).

According to the extension room (10), the heat insulating material (11)
The inner ceiling (2) is inside the sloping roof material (1) lined with
Since it is provided in parallel with the roof slope, the ceiling can be set high. And sloping roof material (1) and inner ceiling (2)
The air in the ventilation gap (3) between the air and the air easily flows upward.

The distance between the sloping roof material (1) and the inner ceiling (2)
(W) is relatively large, for example, about 63 mm, and each rafter member is located on the eaves side of the extension room (10).
For example, between the front end portion of the roof material receiving member (22) on both the left and right sides thereof, for example, a ventilation front gap portion (4
5) (45) (see Fig. 6) is open, so it is an extension room
From these ventilation front voids (45) (45) at the front of (10),
Ventilation gap (3) between sloped roofing (1) and inner ceiling (2)
The air flows into the ventilation gap (3) and flows quickly upward through the ventilation gap (3), and is discharged outside through the ventilation gap (46) (47) at the rear end of the rafter member (5). Is what is done.

Thus, the heat insulation performance of the heat-insulating roof of the extension room (10) is enhanced to prevent a rise in the room temperature in the summer, and the dew condensation on the surface of the rafter member (5) in the winter is also reduced. (3) The occurrence of dew condensation can be sufficiently suppressed by the air flowing inside. In addition, heat insulation is improved by the heat insulating effect of the air layer in the gap (3).

Further, since the inner ceiling mounting member (6) is mounted on the lower surface of each rafter member (5) via a heat-insulating packing (bead) (7), the temperature becomes high in summer and low in winter. It is difficult to transmit the temperature of the rafter member (5) to the room, and the heat insulation in the room can be improved.

In the above embodiment, the extension room
(10) is a heat-insulating inner ceiling inside a sloping roofing material (1) lined with heat-insulating material (52) through a ventilation gap (3).
(2) is provided in parallel, and both the sloped roofing material (1) and the inner ceiling (2) have heat insulation properties. It suffices that at least one of (1) and the inner ceiling (2) has a heat insulating property.

Further, in the above embodiment, the case where the present invention is applied to the extension room (10) has been described. However, the invention is not limited to the extension room (10), but also includes a sun room, a windbreak room and the like. The present invention can be applied to all prefabricated buildings.

[0032]

As described above, in an assembled building such as an extension room according to the present invention, as described above, the inner ceiling is provided parallel to the inside of the sloped roof material via the ventilation gap, and the sloped roof material and the interior At least one of the ceilings has thermal insulation properties, and the inner ceiling is provided inside the inclined roofing material in parallel with the roof slope, so that the ceiling can be set high. Further, the air in the ventilation gap between the sloped roof material and the inner ceiling easily flows to the upper part. As a result, the insulation performance of the insulated roof of the prefabricated building such as an extension room is enhanced, and the rise in the room temperature in summer is prevented.
Regarding the dew condensation generated on the surface of the rafter member in winter, the occurrence of dew condensation can be sufficiently suppressed by flowing the air into the ventilation gap. In addition, heat insulation is improved by the heat insulating effect of the air layer in the gap.

Further, since the inner ceiling mounting member is mounted on the lower surface of each rafter member through a heat-insulating packing, it is difficult to transmit the temperature of the rafter member, which becomes high in summer and low in winter, to the room. Therefore, there is an effect that the heat retention in the room can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cut-away schematic perspective view of an extension room showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a roof portion of the extension room.

FIG. 3 is an enlarged cross-sectional view of a roof mounting portion on the building main body side of the extension room in FIG. 2;

FIG. 4 is an enlarged sectional view taken along the line AA of FIG. 3;

FIG. 5 is an enlarged sectional view of a roof mounting portion on the eaves side of the extension room in FIG. 2;

FIG. 6 is an enlarged sectional view taken along the line BB of FIG. 6;

FIG. 7 is an enlarged sectional view of a roof material of the extension room in FIG. 2;

FIG. 8 is an enlarged sectional view of an inner ceiling portion of the extension room of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inclined roofing material 2 Inner ceiling 2a Inner ceiling side edge 3 Ventilation space 5 Rafter member 6 Inner ceiling mounting member 7 Packing with heat insulation 10 Extension room (assembled building)

Claims (2)

[Claims] 1. A ventilation gap inside a sloped roofing material (1).
(3), the inner ceiling (2) is provided in parallel, and at least one of the sloping roofing material (1) and the inner ceiling (2) has thermal insulation. Assembled building. 2. A rafter member in which the sloping roof member (1) is made of an extruded member.
(5), an inner ceiling mounting member (6) made of extruded section is provided on the underside of the rafter member (5) with heat-insulating packing.
(7) attached via this inner ceiling mounting member (6)
The assembled building such as an extension room according to claim 1, wherein a side edge portion (2a) of the inner ceiling (2) is supported.