JP2004092126A - External heat insulating roof panel, external heat insulating roof construction method, and roof panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an external heat insulating roof structure which facilitates construction in a field, easily secures the continuity of a heat insulating/hermetically sealing line, and is resistant to the degradation of a building over a long period of time, to provide an external heat insulating roof construction method, and to provide a roof panel which is advantageously used for the roof structure and the roof construction method. <P>SOLUTION: The roof panel 3 having heat insulating properties is set on the upper surface of a roof frame 1 and the upper edge of a wall face plate 2. The roof panel 3 is constructed by filling a heat insulator inside a frame member 31 forming four peripheral surfaces, and pinching both front and rear surfaces of the frame member 31 by a front face plate 33 and a rear face plate 34. The upper edge of the wall face plate 2 is rendered flush with the upper surface of the roof frame 1, and a hermetically sealing tape 4 is stuck to an area over the roof frame 1, the wall face plate 2, and the rear face plate 34 of the roof panel 3. The hermetically sealing tape 4 makes intimate contact with the roof frame 1 due to self weights of the roof panel 3, a roof finishing material, etc., to thereby form the continuous heat insulating/hermetically sealing line. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an external heat-insulating wall structure and a wall construction method for forming a heat-insulating / airtight line on the outdoor side of a structure, particularly in a wooden or steel-frame building, and a wall insulation panel suitable for the structure / construction method.
[0002]
[Prior art]
In recent years, from the viewpoint of effective use of resources and energy and extension of the life of a building, research for improving the airtightness and heat insulation of the building has been actively repeated in recent years. Such a high airtight and high heat insulation type construction method generally includes an internal heat insulation method in which a heat insulation and airtight line made of a heat insulating material and an airtight material (an airtight film or the like) is provided on the indoor side of the structure, and a heat insulation method on the outdoor side of the structure. -It is roughly divided into the external heat insulation method that provides an airtight line. Traditionally in Japan, the internal heat insulation method has been the mainstream, but there is a gap (discontinuous portion) between the heat insulation and airtight lines around the joints of the heat insulating material and around the outlet, and dew condensation tends to occur on the walls and inside the walls. It was pointed out that mold and mite were generated, and the building was easily deteriorated.
[0003]
On the other hand, the outer heat insulation method is easier to secure the continuity of the heat insulation / airtight line than the inner heat insulation method. Since the structure is located on the indoor side of the heat insulating material, there is an advantage that the structure is hardly affected by a change in the temperature and humidity of the outside air, the internal dew condensation hardly occurs, and the durability of the building is improved.
[0004]
In the case where such an external heat insulation method is applied to a roof portion of a wooden framed building, conventionally, generally, a heat insulating material is attached to an upper surface of a roof frame such as a purlin or a rafter with nails or screws. An airtight tape is adhered to the joint portion or a portion where the joint is formed with another member, or a foamed urethane or the like is filled on site to make the airtight layer continuous. Subsequently, a roof base material is attached to the upper surface of the heat insulating material with nails or screws, and a roof finishing material such as a tile is laid on the roof base material.
[0005]
[Problems to be solved by the invention]
The conventional construction method is performed in such a manner that a heat insulating material is attached to a structure from the outdoor side without any gaps, and a roof base material, a roof finishing material, and the like are sequentially attached. And there are complicated and difficult constructions. For this reason, there is a great possibility that the construction accuracy is reduced depending on the skill of the constructor and the heat insulation performance varies. In particular, at the joint between the heat insulating materials and at the portion where the heat insulating material is connected to another member, the heat insulating / air tight line is likely to be broken due to wrinkles of the airtight tape or poor filling of the urethane foam. In addition, shrinkage of the heat insulating material and peeling of the airtight tape due to aging occur. Such a defect of the heat insulation / airtight line leads to dew condensation due to moisture leakage and promotes deterioration of the building.
[0006]
Further, when the roof base material is attached to the roof frame together with the heat insulating material, nails or screws having a length of about 100 mm to 150 mm are required so as to penetrate the heat insulating material. In this case, since the roof frame is not visible from the working side, nails and the like are likely to be detached from the roof frame and the nails and the like are easily broken and the workability is poor. In addition, nails and the like that come off the roof frame become cold bridges and cause dew condensation, which causes mold and rust on metal parts.
[0007]
Furthermore, in the above-mentioned conventional method, when the roof material is removed at the time of extension or remodeling or the like, the heat insulating material is easily broken when the nails or the like are removed, so that there is a problem in the separation and collection of the waste material and the recycling.
[0008]
Therefore, the present invention relates to a roof structure and a roof construction method of an external insulation system which are easy to perform on-site, easily maintain continuity of an insulation / airtight line, and hardly cause deterioration of a building in the long term, and such an external insulation roof It is an object of the present invention to provide a roof panel that can be suitably used for a structure / wall construction method.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, an external heat-insulating roof structure according to the present invention is an external heat-insulating roof structure in which a roof panel having heat insulating properties is installed on an upper surface of a roof frame and an upper edge of a wall material. Is filled with a heat insulating material inside the frame material constituting the four circumferences, and both the front and back surfaces of the frame material and the heat insulating material are sandwiched between the front surface plate material and the rear surface plate material, respectively, and the upper edge of the wall material is roofed. While being formed so as to be flush with the upper surface of the frame, airtight tape is adhered between the roof frame and the wall material and the back plate material of the roof panel, and the back plate material of the roof panel is fixed via the fixing bracket. It is characterized in that a heat insulation / airtight line is formed by being joined to the roof frame. Here, the roof frame refers to the entire framework constituting the hut assembly including the rafters, the purlin, and other structural members.
[0010]
Further, in this externally insulated roof structure, in a joint portion where a plurality of roof panels are joined, a side edge portion of one roof panel projects outside the outer edge portion of the frame material, and a back side plate material extends from the outer edge portion of the frame material. The side edge of the other roof panel is formed by retreating by the amount of the overhang of the surface plate of the one roof panel, and the back panel is formed of the side edge of the one roof panel by the side edge of the other roof panel. It is formed so as to protrude by the retreat of the back plate, the front plate of one roof panel and the frame material of the other roof panel are fixed, and adjacent roof panels are joined together in a merged manner. And
[0011]
Furthermore, in this outer heat-insulating roof structure, an airtight material is attached between the frame material of one roof panel and the back plate material of the other roof panel at the joint where the plurality of roof panels are joined, and The roof panels to be joined are air-tightly joined.
[0012]
Further, in this outer heat-insulating roof structure, the airtight tape is formed by forming a band made of an independent foamed resin or a band made of a continuous foamed resin having an airtight face layer on at least one surface to a thickness of 3 mm or more. There is a feature.
[0013]
In addition, the outer insulation roofing method according to the present invention comprises applying an airtight tape to an upper edge of a roof frame and an upper edge of a wall material formed so as to be flush with the upper surface of the roof frame to form four rounds. A heat insulating material is filled inside the frame material to be sandwiched, and both the front and back surfaces of the frame material and the heat insulating material are sandwiched between a front plate material and a back plate material, respectively, and at one side edge, either the front plate material or the back plate material is the frame. A plurality of roof panels formed so as to protrude outside the outer edge of the material and to retreat to the inside of the outer edge of the frame material so that the other one of the front surface material and the rear surface material can be joined in a conjoined manner. Is installed in close contact with the upper surface of the roof frame and the upper edge of the wall material, and at the joint portion of the adjacent roof panel, one surface plate material and the other frame material are joined with a fastener. It is characterized by.
[0014]
In addition, the roof panel according to the present invention includes a frame member forming four circumferences, a heat insulating material filled inside the frame material, a surface plate member forming a surface side of the frame material and the heat insulating material, and the frame material. And a back plate constituting the back side of the heat insulating material, and at an edge of the four peripheral edges adjacent to another roof panel, one of the front plate and the back plate is an outer edge of the frame material. It is characterized in that one of the front surface plate material and the rear surface plate material is formed to retreat inside the outer edge portion of the frame material and is joined to an adjacent roof panel in a congruent manner.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0016]
FIG. 1 is an exploded perspective view showing a basic configuration of a roof panel used in an external heat-insulating roof structure and a construction method according to the present invention, and FIG. 2 is a partial cross-section showing a joint part of a roof panel to be joined. FIG. FIG. 3 is an exploded perspective view showing the external heat-insulating roof structure according to the present invention.
[0017]
The roof panel 3 of the present invention comprises a frame member 31 constituting four circumferences, a heat insulating material 32 filled in a frame surrounded by the frame materials 31, and a front side of the heat insulating material 32 and the frame material 31. And a back plate 34 constituting the back side of the heat insulating material 32 and the frame 31.
[0018]
The frame material 31 of the roof panel 3 according to the illustrated embodiment is made of a wooden material having an estimated size of about 150 mm.
[0019]
The heat insulating material 32 is formed using a foamed resin such as hard urethane, glass wool or other general heat insulating materials. The thickness of the heat insulating material 32 is about 150 mm 2 in this example, but is arbitrarily set as long as it falls within the expected size of the frame material 31. It is preferable that the material used for the heat insulating material 32 is appropriately selected to cope with the required heat insulating performance.
[0020]
A front plate 33 and a back plate 34 are bonded to the front and back surfaces of the frame member 31 and the heat insulating member 32, respectively, and are sandwiched therebetween. The front plate 33 and the back plate 34 may be formed of a single plate or a composite plate such as a metal plate, a PVC steel plate, or a resin plate as long as they have a predetermined strength. Therefore, it is formed of a wood-based surface material such as structural plywood. The wood-based surface material used for the front surface material 33 and the back surface material 34 is formed to a thickness of about 12 mm.
[0021]
The roof panel 3 has one of the front surface plate material 33 and the rear surface plate material 34 at a side edge portion located on a side adjacent to the other roof panel 3 except for the roof side of the roof among the four peripheral edges. The outer panel 31 projects outside the outer edge, and the other one of the front panel 33 and the rear panel 34 recedes inside the outer edge of the frame member 31 so that the roof panels 3 can be joined together. Is formed.
[0022]
That is, at the joint portion where the plurality of roof panels 3 are joined to each other, as shown in FIG. 2, the side edge of one roof panel 3 a is such that the surface plate material 33 projects outside the outer edge of the frame material 31. At the same time, the back plate 34 is formed to be recessed inside the outer edge of the frame member 31. The side edges of the other roof panel 3b are such that the surface plate 33 is retracted by the amount of the overhang of the surface plate 33 of the one roof panel 3a, and the back plate 34 is formed of the back plate 34 of the one roof panel 3a. It is formed so as to protrude by the retreat amount.
[0023]
According to the roof panel 3, the cross-sectional dimensions of the frame member 31 can be standardized, and the required heat insulating performance can be changed by changing the material thereof regardless of the thickness of the heat insulating member 32. It becomes possible to attach finishing materials such as baleen and eaves to the frame member in a common manner.
[0024]
Such a roof panel 3 is installed on the upper surface of the roof frame 1 at the top of the building 10 and on the upper edge of the wall material 2, as shown in FIG. In the illustrated embodiment, the roof panel 3 has a standard size that covers from the vicinity of the ridge of the building 10 to the eaves.
[0025]
In the building 10, a frame member such as a pillar, a girder, a stud, and a rim is made of a lightweight steel frame, and a wall surface is formed by attaching a wall material 2 such as an outer wall panel or a heat insulating wall heat insulating panel. A roof frame 1 such as a main building is assembled on the top of the building 10 so as to support a roof material such as a roof panel 3.
[0026]
In the outer insulation roof structure and the construction method according to the present invention, prior to the installation of the roof panel 3, the airtight tape 4 is provided on the upper edge of the roof frame 1 and the upper edge of the wall material 2, which is in contact with the back surface of the roof panel 3. Affixed.
[0027]
Here, the upper edge of the wall material 2 is formed so as to be flush with the upper surface of the roof frame 1. In this case, for example, a pass-through member is continuously attached to each upper edge of a plurality of adjacent wall materials 2, or a cross-sectional shape of the upper edge of the wall material 2 is formed so as to follow a roof gradient. Thus, the upper edge of the wall member 2 is flush with the upper surface of the roof frame 1.
[0028]
The airtight tape 4 to be used is a long strip having a thickness of about 10 mm and has elasticity. The hermetic tape 4 is formed of a foamed resin such as foamed polyethylene, urethane foam, or foamed polystyrene, or a synthetic rubber such as foamed EPDM (ethylene-propylene-diene terpolymer). As such a foam, a foam in which cells are individually independent (independent foam) is preferable, but a foam having a gas-tight face layer provided on at least one surface of a material having open cells (continuous foam) can also be used.
[0029]
This airtight tape 4 is continuously adhered to the upper surface of the roof frame 1 and the upper edge of the wall material 2. The airtight tape 4 thus adhered is caused by the own weight of the roof panel 3 and the roof finishing material laid on the roof panel 3, and the fitting metal fittings 7 (see FIGS. 4 and 5) described later. You will be crushed. As a result, a heat insulation / airtight line is continuously formed between the roof panel 3 and the roof frame 1 and the wall material 2.
[0030]
Next, the roof panel 3 is placed on the upper surface of the roof frame 1 to which the airtight tape 4 is attached and the upper edge of the wall material 2. At this time, since the airtight tape 4 and the roof panel 3 overlap with a sufficient width, the continuity of the heat insulation / airtight line is well ensured.
[0031]
A plurality of the roof panels 3 are installed adjacent to each other via the front surface plate material 33 or the rear surface plate material 34 at the side edge of the roof panel 3 formed in a congruent shape. That is, as shown in FIG. 2, the roof panel 3 b is installed on the roof frame 1 such that the side edge of the roof panel 3 a to be adjacently covers the side edge of the roof panel 3 b previously installed on the roof frame 1. Then, the surface plate material 33 of the one roof panel 3a and the frame material 31 of the other roof panel 3b which are overlapped are fixed with a fastener 5 such as a nail or a screw, and the adjacent roof panels 3 are joined together. Join in a shape.
[0032]
Furthermore, the airtight material 6 is adhered to the illustrated roof panel 3 between the back plate 34 of one roof panel 3 and the frame 31 of the other roof panel 3. The airtight material 6 is also made of the same material as the airtight tape 4. This airtight material 6 also ensures airtightness between the roof panels 3 installed adjacent to each other.
[0033]
In addition, since the roof panels 3 are joined together in a congruent manner, deformation such as warpage that may occur in the roof panels 3 is suppressed, no gap is formed between the roof panels 3, and the airtightness is not impaired. . In addition, since the fasteners 5 such as nails used for joining the roof panels 3 are merely used to fix the surface plate material 33 of one roof panel 3 and the frame material 31 of the other roof panel 3, Of the airtight material 6 and the heat insulation / airtight line formed on the indoor side of the airtight material 6 does not occur.
[0034]
4 and 5 show a method of fixing the roof panel 3 to the roof frame 1 in the present embodiment, wherein FIG. 4 (a) is a partial cross-sectional view of a roof eave, and FIG. 4 (b) is a perspective view of a fixing bracket. FIG. 5 and FIG. 5 are partial cross-sectional views of the roof at Kaha.
[0035]
As shown in the figure, the fixing of the roof panel 3 to the roof frame 1 is performed by using a fixing metal 7. The fixing bracket 7 is formed such that two joining surfaces provided with the bolt insertion holes 71 have a substantially L-shaped cross section. One joint surface of the fixing bracket 7 is attached to the back plate 34 of the roof panel 3, and the other joint surface is joined to the roof frame 1.
[0036]
In the illustrated embodiment, the roof panel 3 is first lifted by a crane or the like (not shown) and placed on the roof frame 1. Then, from the indoor side of the building 10, the fixing bracket 7 is temporarily fastened to an appropriate position of the back plate 34 of the roof panel 3 so that the fixing bracket 7 and the roof frame 1 such as the main building can be joined.
[0037]
Then, the fixing | fixed metal fitting 7 which was temporarily fastened is latched to the roof frame 1, and the fixed position of the roof panel 3 is adjusted, sliding the roof panel 3 along the roof frame 1. FIG. Then, after the roof panel 3 is placed in the fixed position and positioned, the fixing metal 7 is fully tightened to fix the fixing metal 7 to the roof panel 3 and the fixing metal 7 to the roof frame 1.
[0038]
As described above, according to the present structure and the construction method, the roof panel 3 can be installed while being slid and moved by using the fixing bracket 7, so that the positioning of the roof panel 3 is easy and the construction is efficiently performed. be able to. In addition, the fixing metal 7 is attached to the back surface (indoor side) of the roof panel 3 having heat insulation performance, and does not penetrate the heat insulating material 32 and is not exposed to the outdoor side. The formation of mold and the rusting of metal parts due to rust are also prevented.
[0039]
Further, in the outer heat-insulating roof structure and construction method of the present embodiment, a ridge roof panel 3c having the same heat insulation performance as the roof panel 3 is installed in the ridge portion of the building 10.
[0040]
The ridge roof panel 3c has a configuration in which a heat insulating material 32 having a mountain-shaped cross section according to the shape of the ridge is sandwiched between a front plate 33 and a rear plate 34 made of a wood-based surface material. The ridge roof panel 3c is also fixed to the roof frame 1 with a fixing bracket 7 having a substantially L-shaped cross section, and is installed in close contact with the roof panel 3. This ensures the continuity of the heat-insulating and air-tight line and also enhances the workability of the roof finishing material.
[0041]
After repeating the above procedure and installing and fixing the plurality of roof panels 3 and the ridge roof panel 3 on the roof frame 1, roofing materials such as eave lining materials, eaves and gable steel plates, and tiles are roofed. Set up.
[0042]
Since the roof panel 3 is formed as a large-sized integral panel filled with the heat insulating material 32, the installed roof panel 3 itself has a structure which also serves as a roof frame such as an eaves or a wing. Then, roof finishing work such as waterproofing or tile construction can be directly performed on the surface plate material 33 of the roof panel 3 as a roof base (field board).
[0043]
In the illustrated embodiment, the roof panel 3 is formed as a standard type having a size covering from the vicinity of the ridge of the building 10 to the eaves. However, the present invention is not limited to this. In the case where a plurality of roof panels 3 are installed in the flow direction according to the size or the like, the same heat insulation performance as described above can be obtained.
[0044]
【The invention's effect】
As described above, the outer heat-insulating roof structure and the roof construction method according to the present invention form the upper edge of the wall material so as to be flush with the upper surface of the roof frame. A roof panel having heat insulation properties is installed at the upper edge portion, and a heat insulation / airtight line is formed between the roof frame and wall material that are flush with each other and a back plate material of the roof panel.
[0045]
Therefore, it is possible to significantly reduce the number of construction steps on site and to construct a roof having a constant heat insulating performance without requiring special skills, as compared with the related art. Furthermore, since a roof finishing material such as a waterproof treatment or a tile can be laid directly using the surface plate material of the roof panel as a roof base, work efficiency can be improved and workability can be improved.
[0046]
Further, in the external heat-insulating roof structure and the roof construction method according to the present invention, the attached airtight tape and the roof panel overlap with a sufficient width, so that the continuity of the heat-insulating and airtight line is ensured satisfactorily. The structure can be held for a long period of time, so that the structure is hardly deteriorated.
[0047]
Further, in the outer heat-insulating roof structure and the roof construction method according to the present invention, adjacent roof panels can be joined only by fastening the surface plate material of one roof panel and the frame material of the other roof panel, so that nails or the like can be used. There is no risk of damaging the heat insulation / airtight line formed on the indoor side of the roof panel by the fastener, and the deterioration of the building due to dew condensation or the like can be prevented.
[0048]
The roof panel according to the present invention is such that a heat insulating material is filled inside a frame material constituting four circumferences, and the frame material and the heat insulating material are sandwiched between a front surface plate material and a rear surface plate material. Since the portion can be joined in a contiguous manner with the adjacent roof panel, deformation of the joined roof panels is suppressed, such as warpage, and formation of a gap between the roof panels is prevented, as described above. It is possible to suitably implement the external heat insulation roof structure and the roof construction method.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a basic configuration of a roof panel according to the present invention.
FIG. 2 is a partial sectional view showing a side edge of a roof panel according to the present invention.
FIG. 3 is an exploded perspective view showing an external heat-insulating roof structure according to the present invention.
FIG. 4 is a partial cross-sectional view on the eaves side showing the external heat-insulating roof construction method according to the present invention.
FIG. 5 is a partial cross-sectional view illustrating the outer insulation roof construction method according to the present invention, which is on the side of Yaba.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof frame 2 Wall material 3 Roof panel 3c Building roof panel 31 Frame material 32 Insulation material 33 Surface plate material 34 Back plate material 4 Airtight tape 5 Fastening tool 6 Airtight material 7 Fixture 71 Bolt insertion hole 10 Building

Claims (6)

An outer heat-insulating roof structure in which a roof panel having heat insulating properties is installed on the upper surface of the roof frame and the upper edge of the wall material,
The roof panel is filled with a heat insulating material inside the frame material constituting the four circumferences, and both the front and back surfaces of the frame material and the heat insulating material are sandwiched between the front surface plate material and the rear surface plate material,
The upper edge of the wall material is formed so as to be flush with the upper surface of the roof frame, airtight tape is adhered between the roof frame and the wall material and the back panel material of the roof panel, and the back panel material of the roof panel is provided. Is joined to the roof frame via fixing brackets to form a heat-insulating and air-tight line. At the joint where multiple roof panels are joined,
On the side edge of one roof panel, the front plate material extends outside the outer edge of the frame material, and the rear plate material is formed to recede inside the outer edge of the frame material,
The side edge portion of the other roof panel is formed such that the surface plate material retreats by the amount of the overhang of the surface plate material of the one roof panel, and the back surface material protrudes by the retreat of the back surface material of the one roof panel,
The outer heat-insulating roof according to claim 1, wherein a surface plate material of one roof panel and a frame material of the other roof panel are fixed, and adjacent roof panels are joined together in a merged manner. Construction. An airtight material is stuck between the frame material of one roof panel and the back plate material of the other roof panel at the joint where the plurality of roof panels are joined, and the adjacent roof panels are airtightly joined together The externally insulated roof structure according to claim 2, wherein: The airtight tape is formed by forming a strip made of an independent foamed resin or a strip made of a continuous foamed resin provided with an airtight face layer on at least one surface to a thickness of 3 mm or more. 4. The externally insulated roof structure according to 2 or 3. Attach an airtight tape to the upper edge of the roof frame and the upper edge of the wall material formed to be flush with the upper surface of the roof frame,
A heat insulating material is filled inside the frame material constituting the four circumferences, and both the front and back surfaces of the frame material and the heat insulating material are sandwiched between a front surface material and a rear surface material, respectively, and at one side edge, either the surface material or the rear surface material A plurality of sheets are formed such that they protrude outside the outer edge of the frame material and one of the front surface plate material and the rear surface plate material recedes inside the outer edge portion of the frame material and can be joined in a merged manner. The roof panel is installed in close contact with the upper edge of the roof frame and the upper edge of the wall material,
An external heat-insulating roof method comprising joining one surface plate material and the other frame material with fasteners at joints of adjacent roof panels. A frame material forming four circumferences, a heat insulating material filled inside the frame material, a front plate material forming the front side of the frame material and the heat insulating material, and a back surface forming the back side of the frame material and the heat insulating material With board material,
At the edge of the four peripheral edges on the side adjacent to the other roof panel, one of the front surface plate material and the rear surface plate material projects outside the outer edge portion of the frame material, and the other one of the surface surface material or the rear surface plate material is A roof panel which is formed so as to be receded inside an outer edge portion of the frame member, and can be joined to an adjacent roof panel in a definite manner.

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