JPH07127177A - Heat-insulating structure for roof - Google Patents

Abstract

PURPOSE:To prevent dew condensation by stretching heat-insulating panels among roof beams while installing heat-insulating materials onto the top face sections of the roof beams so as to be connected to the heat-insulating panels. CONSTITUTION:Heat-insulating panels 8 consisting of face members 10 and heat-insulating materials 11 are mounted among roof beams 4 through engaging fittings 15, and the top faces 8a of the panels are positioned at sections upper than the top face sections 4a of the roof beams 4. Clearance sections formed among the heat-insulating panels 8 and a ceiling material 7 are filled with heat-insulating materials 19 while heat-insulating materials 20 are disposed onto the top face sections 4a of the roof beams so as to be continued in the same height as the heat-insulating panels 8. Accordingly, the generation of stains due to the dew condensation of the ceiling material, etc., is prevented while durability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating structure for a roof of a building, and more particularly to a heat insulating structure for improving a heat insulating property of a roof having a roof beam of a steel frame structure.

[0002]

2. Description of the Related Art As a roof of a building, for example, a roof beam of a steel frame structure such as a roof of a unit building, a roof material is arranged above these roof beams, and a ceiling material is arranged below the roof beams. There is a roof that is arranged. In such a roof, although an air layer having a heat insulating property is provided between the roof material and the ceiling material, the heat insulation is insufficient, so that heat insulation such as glass wool is provided between the roof material and the ceiling material. A heat insulating structure in which a material is provided to improve the heat insulating property is generally adopted (Japanese Patent Laid-Open Nos. 63-156144 and 4-330142).
No.

FIG. 5 shows a conventional heat insulating structure for a roof. In the figure, 4 is a roof beam, and these roof beams 4
A roof member (not shown) is disposed above the roof beam 4, and a ceiling member 7 is disposed below the roof beam 4. Then, between the roof beams 4, the heat insulating material 4 is placed on the upper surface of the ceiling material 7.
0 is set.

[0004]

However, in the above-described heat insulating structure for the roof, the heat insulating material 40 is disposed only between the roof beams 4, and the roof beams 4 are not thermally insulated. In the ground, the roof beams 4 serve as cold bridges, causing a decrease in heat insulation, and there is a problem that dew condensation d occurs on the interior surface of the ceiling material 7. In addition, there is a problem that the above-mentioned dew condensation causes stains on the ceiling material 7 and the like, and lowers durability.

The present invention has been made to solve the above-mentioned problems, and it is possible to effectively insulate the entire roof including the roof beams, and to prevent dew condensation on the ceiling material and the like. It is intended to provide.

[0006]

In order to achieve the above object, the invention of claim 1 is to arrange a roofing material above a roof beam,
In a heat insulating structure for a roof in which a ceiling material is arranged below a roof beam, a heat insulating panel is laid between the roof beams such that the panel upper surface is located above the upper surface of the roof beam, and A heat insulating material is provided on the upper surface of the beam so as to be continuous with the heat insulating panel.

The invention of claim 2 is based on the invention of claim 1, and is characterized in that a heat insulating material is provided in a gap between the heat insulating panel and the ceiling material.

Further, the invention of claim 3 is the same as claim 1 or 2.
On the premise of the invention described above, a ventilation layer is formed between the heat insulating panel and the roof material.

[0009]

According to the first aspect of the present invention, the heat insulating panel is bridged between the roof beams so that the panel upper surface is located above the upper surface of the roof beam, and the upper surface of the roof beam is connected to the heat insulating panel. Since the heat insulating material is provided as described above, the entire roof including the roof beam is effectively insulated, the cold bridge is eliminated, and it is possible to prevent dew condensation on the ceiling material and the like. Therefore, it is possible to prevent the stain from being caused by the dew condensation on the ceiling material and the like, and improve the durability of the ceiling material and the like. Moreover, since the heat insulating panel is used, the construction is easy.

According to the second aspect of the present invention, by disposing the heat insulating panel so that the upper surface of the heat insulating panel is located above the upper surface of the roof beam, a gap portion formed between the ceiling material and the heat insulating panel is formed. Since the heat insulating material is provided by utilizing the heat insulating material, it is possible to further improve the heat insulating property without increasing the thickness between the ceiling material and the roof material.

According to the third aspect of the present invention, since the ventilation layer is formed between the heat insulating panel and the roofing material, moisture in the attic can be removed, heat insulation can be improved, and heating of the attic in summer can be achieved. Can be prevented.

[0012]

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

1 and 2 showing a heat insulating structure of a roof, reference numeral 1 denotes a building (also referred to as a unit building) constructed by arranging building units 2 in parallel, and each building unit 2 includes four columns 3. A roof beam (also referred to as a ceiling beam) 4 having a U-shaped cross section is hung between the upper end portions in a rectangular shape, and a floor beam (not shown) is hung between the lower end portions of the support columns 3 similarly to the roof beam, and a rectangular parallelepiped having a steel frame structure. It is formed into a shape. The roof 5 of the building 1 has the roof beam 4 as a main component, a roof member 6 made of, for example, vinyl chloride-coated steel plate disposed above the roof beam 4, and a ceiling member 7 made of, for example, a gypsum board below the roof beam 4. Is provided.

In order to provide the roof 5 with a heat insulating structure, a heat insulating panel 8 is hung between the roof beams 4 with its panel upper surface 8a positioned above the upper surface portion 4a of the roof beam 4. There is. The heat insulation panel 8 is made of a wooden frame member 9 assembled into a square having a size that can be exactly accommodated in the flat roof beam 4, and a plywood plate provided on one side of the frame member 9 so as to cover the same. It is mainly composed of a face material 10 and a heat insulating material 11 which is filled in a portion surrounded by the face material 10 and the frame material 9 and is made of, for example, glass wool. More specifically, the inside of the frame member 9 has a plurality of partition members 12 for reinforcement.
Each room 13 is divided by a partition material 12.
The heat insulating material 11 is housed in. Further, the frame material panel 8 is used so that the face material 10 is the upper surface,
A heat insulating material receiving sheet 14 is stretched on the lower surface of the frame member 9.

In order to bridge the heat insulating panel 8 between the roof beams 4, the upper surfaces 4a of the roof beams 4 facing each other on the long sides are locked to lock the lower edges of both sides of the heat insulating panel 8. Metal fittings 1
5 is attached. This locking fitting 15 is a vertical part 1
The upper and lower ends of 5a have locking portions 15b and 15c which are bent at right angles in opposite directions, and the upper locking portion 15b thereof is provided.
Is locked to the upper surface 4a of the roof beam 4 and fixed by the bolts 16 and nuts 17, and the heat insulating panel 8 is locked to the lower locking portion 15c and fixed by the nails 18. The space S formed between the heat insulating panel 8 and the ceiling material 7 is filled with a glass wool heat insulating material 19 and the roof beam 4 is provided.
A glass wool heat insulating material 20 is provided on the upper surface portion 4a of the same so as to be continuous with the heat insulating panel 8 at substantially the same height.

On the upper surface 4a of the heat insulation panel 8 is a wooden bar 2.
1, a base plate 22 is stretched, and the roof material 6 is mounted on the base plate 22 via a waterproof sheet (not shown). As described above, the ventilation plate 23 is formed between the heat insulating panel 8 and the roof material 6 by stretching the field board 22 on the heat insulating panel 8 via the wooden crosspiece 21. In addition,
In FIG. 1, reference numeral 24 denotes an outer wall material having a heat insulating property stretched from a roof beam 4 located on the outdoor side to a floor beam below (not shown), and an insulating material 25 is provided on the indoor side of the outer wall material 24.
The inner wall member 26 is attached via. Outer wall material 2
An eave 27 continuous from the roof material 6 is attached above the roof 4. Reference numeral 28 is a heat insulating pad attached to the lower surface of the roof beam 4.

In the case of forming the heat insulating structure of the roof 5 configured as described above, first, the heat insulating material 19 is provided between the roof beams 4 on the ceiling material 7, and the heat insulating panel to which the locking metal fitting 15 is attached in advance. 8 is hung over the roof beam 4 through the locking metal fittings 15, and the bolts 16 fixed to the roof beam 4 in advance are nuts 17
After fixing the locking metal fitting 15 by screwing, the heat insulating material 20 may be provided on the upper surface of the roof beam 4.

According to the heat insulating structure of the roof 5,
The heat insulating panel 8 is bridged between the roof beams 4 such that the panel upper surface 8a is located above the upper surface portion 4a of the roof beam 4, and the upper surface portion 4a of the roof beam 4 is continuous with the heat insulating panel 8. Since the heat insulating material 20 is provided, the entire roof including the roof beams 4 is effectively insulated, the cold bridge is eliminated, and dew condensation on the ceiling material 7 and the like can be prevented. Therefore, the ceiling material 7
Stain can be prevented from being generated due to dew condensation on the ceiling material 7 and the like, and the durability of the ceiling material 7 and the like can be improved. Further, since the heat insulating panel 8 having a predetermined shape and rigidity is used instead of the non-rigid heat insulating material itself such as glass wool, the locking metal fitting 15 is provided at the predetermined height position of the roof beam 4. The heat insulating panel 8 can be used to easily attach the base plate 22.

The heat insulating panel 8 is attached to the panel upper surface 8a.
Is disposed above the upper surface portion 4a of the roof beam 4, and the heat insulating material 19 is provided by using the gap S generated between the ceiling material 7 and the heat insulating panel 8. The heat insulating property can be further improved without increasing the thickness between the roof member 7 and the roof member 6.

Furthermore, since the ventilation layer 23 is formed between the heat insulating panel 8 and the roofing material 6, moisture in the attic can be removed, heat insulation can be improved, and heating of the attic in summer can be prevented. You can

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, in the above embodiment, the heat insulating material 1 is provided in the gap S between the heat insulating panel 8 and the ceiling material 7.
9 is provided, and the ventilation layer 23 is further formed between the heat insulation panel 8 and the roof material 6.
3 is not necessarily provided as shown in FIG. 3, and may be provided in an appropriate combination such as the heat insulating panel 8 and the heat insulating material 19 or the heat insulating panel 8 and the ventilation layer 23. Further, in the above embodiment, the heat insulating panel 8 is fixed to the locking fitting 15 by the nails 18, but as shown in FIGS. 4 (a) and 4 (b), the bolt 29 is used to increase the mounting strength.
You may make it fix with the nut 30. in this case,
It is preferable that the frame member 9 of the heat insulation panel 8 is provided with a flange member 31 for passing the bolt 29 and an opening 32 is provided so that the nut 30 does not interfere with the flange member 31.

[0022]

In summary, according to the present invention, the following excellent effects can be obtained.

(1) According to the invention of claim 1, the heat insulating panel is laid between the roof beams so that the panel upper surface is located above the upper surface portion of the roof beam, and the upper surface portion of the roof beam is thermally insulated. Since the heat insulating material is provided so as to be continuous with the panel, the entire roof including the roof beam is effectively insulated, the cold bridge is eliminated, and it is possible to prevent the dew condensation on the ceiling material and the like. Therefore, it is possible to prevent the stain from being caused by the dew condensation on the ceiling material and the like, and improve the durability of the ceiling material and the like. Also,
Since it uses a heat insulation panel, construction is easy.

(2) According to the invention of claim 2, the heat insulating panel is arranged such that the panel upper surface is located above the upper surface of the roof beam, so that a gap generated between the ceiling material and the heat insulating panel. Since the heat insulating material is provided by utilizing the portion, the heat insulating property can be further improved without increasing the thickness between the ceiling material and the roof material.

(3) According to the invention of claim 3, since the ventilation layer is formed between the heat insulating panel and the roofing material, moisture in the attic can be removed, the heat insulating property can be improved, and at the same time in the summer. The heating of the attic can be prevented.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a heat insulating structure for a roof according to the present invention.

FIG. 2 is an exploded perspective view for explaining a method of attaching the heat insulation panel in FIG.

FIG. 3 is a sectional view showing a modified example of the present invention.

FIG. 4 is a diagram showing a modified example of attachment of a heat insulating panel.

FIG. 5 is a cross-sectional view showing a conventional roof heat insulating structure.

[Explanation of symbols]

 4 Roof Beam 5 Roof 6 Roofing Material 7 Ceiling Material 8 Insulation Panel S Gap 19,20 Insulation Material 23 Vent Layer

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI Technical display area E04B 9/00 E04D 12/00 H 9025-2E

Claims (3)

[Claims] 1. A heat insulating structure for a roof, wherein a roof material is arranged above a roof beam, and a ceiling material is arranged below the roof beam. A heat insulating structure for a roof, characterized in that the roof beam is provided so as to be positioned above the upper surface and a heat insulating material is provided on the upper surface of the roof beam so as to be continuous with the heat insulating panel. 2. A heat insulating material is provided in a gap between the heat insulating panel and the ceiling material.
Insulated structure of the roof described. 3. A ventilation layer is formed between the heat insulation panel and the roofing material.
Insulated structure of the roof described.