JP3908125B2 - Outside insulation roof structure and roof panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof structure of an outer heat insulation system in which a heat insulation / airtight line is formed on the outdoor side of a structure in a wooden or steel building, and a roof panel suitable for the structure .
[0002]
[Prior art]
In recent years, research on improving the airtightness and thermal insulation of buildings has been actively conducted from the viewpoint of effective utilization of resources and energy and extending the life of buildings. Such high airtightness and high heat insulation type construction methods generally include an internal heat insulation method in which a heat insulation / airtight line consisting of a heat insulating material and an airtight material (airtight film, etc.) is provided on the indoor side of the structure, and heat insulation on the outdoor side of the structure. -It is roughly divided into an outer heat insulation method that provides an airtight line. Traditionally, internal heat insulation methods have been the mainstream in Japan, but there are gaps (discontinuous parts) between the insulation and airtight lines around the joints of the insulation and around the outlets, and condensation tends to occur inside the walls and walls. It was pointed out that mold and mites were generated, and the building was likely to deteriorate.
[0003]
On the other hand, the outer heat insulation method is easier to ensure 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, it has the advantages that it is less susceptible to changes in temperature and humidity of the outside air, is less likely to cause internal condensation, and improves the durability of the building.
[0004]
In the case of applying this outer heat insulation method to the roof portion of a wooden framed building, conventionally, a heat insulating material is generally attached to the upper surface of a roof frame such as a purlin or a rafter with nails or screws. The airtight layer is made continuous by sticking an airtight tape on the joint portion or a portion where it is in contact with another member, or by filling urethane foam or the like on site. 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 installed on the roof base.
[0005]
[Problems to be solved by the invention]
Since the conventional construction method is performed by a process of attaching the heat insulating material to the structure from the outdoor side without any gaps, and further sequentially attaching the roof base material, the roof finishing material, etc., the member handled on site In many cases, it is complicated and difficult in construction. Therefore, depending on the skill of the installer, there is a high possibility that the construction accuracy will deteriorate and the heat insulation performance will vary. In particular, at the joint between the heat insulating materials and the portion where the other members are in contact with each other, defects in the heat insulating and airtight lines are likely to occur due to defects in the airtight tape and poor filling of urethane foam. Moreover, the shrinkage | contraction of the heat insulating material and peeling of an airtight tape also occur over time. Such a deficiency in the heat insulation / airtight line causes 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 and 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 cannot be seen from the working side, nails and the like are easily detached from the roof frame and the nails are easily broken, and the workability is poor. In addition, nails and the like that are detached from the roof frame become a cold bridge, causing condensation, and causing mold and rusting of the metal part.
[0007]
Further, in the conventional construction method, when the roof material is removed during extension and renovation, the heat insulating material is easily broken when removing the nail or the like.
[0008]
The present invention is easy to installation at the site, easy to ensure the continuity of insulation and airtightness lines, and the roof structure of the hard external insulation system caused long-term even buildings degradation, preferably such external insulation roof structure The problem to be solved is to provide a roof panel that can be used in the future.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, an outer heat insulating roof structure according to the present invention is an outer 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 surface 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 bonded and sandwiched between the front surface plate material and the back surface plate material, respectively , covering from the vicinity of the ridge to the eaves It is formed as an integrated panel with a standard size, and is formed so that the upper edge of the wall material is flush with the top surface of the roof frame, and between the roof frame and the wall material and the back panel of the roof panel. Air-tight tape is continuously attached to the roof panel, and the back panel material of the roof panel is joined to the roof frame via a fixing bracket, and a heat insulating and air-tight line is formed between the roof frame and the wall material and the back panel material of the roof panel. There continuously formed Characterized in that it has been. Here, the roof frame refers to the entire frame that constitutes a hut assembly including rafters, a purlin, and other structural members.
[0010]
Further, in the outer heat insulating roof structure, in the joint portion where a plurality of roof panels are joined, the side plate portion of one roof panel projects the outer surface plate material outside the outer edge portion of the frame material, and the back surface plate material is a frame. The side panel of the other roof panel is formed so as to recede by the amount of the projection of the surface panel of the one roof panel, and the back panel is formed of the one roof panel. It is formed by overhanging the back plate material, and the surface plate material of one roof panel and the frame material of the other roof panel are fastened, and the adjacent roof panels are joined together in a joint shape And
[0011]
Furthermore, this outer heat insulating roof structure is adjacent to the joint portion where a plurality of roof panels are joined, with an airtight material adhered between the frame material of one roof panel and the back plate material of the other roof panel. The roof panels to be sealed are hermetically joined.
[0012]
Further, in this outer heat insulating roof structure, the airtight tape is formed by forming an independent foamed resin band or a continuous foamed resin band having an airtight face layer on at least one surface to a thickness of 3 mm or more. It is characterized by being.
[0013]
In addition, the outer heat insulating roof construction method according to the present invention is configured by adhering an airtight tape to the upper surface of the roof frame and the upper edge of the wall material formed so as to be flush with the upper surface of the roof frame. The inside of the frame material to be filled is filled with a heat insulating material, and both front and back surfaces of the frame material and the heat insulating material are sandwiched between the front surface plate material and the back surface plate material, respectively, and either the front surface plate material or the back surface plate material is attached to the frame at one side edge portion. A plurality of roof panels formed so as to project outside the outer edge portion of the material and so that either the front plate member or the back plate member is retracted inside the outer edge portion of the frame member and can be joined together. Are installed in close contact with the upper surface of the roof frame and the upper edge of the wall surface material, and one surface plate material and the other frame material are joined with a fastening tool at the joint portion of the adjacent roof panel. It is characterized by.
[0014]
In addition, the roof panel according to the present invention includes a frame material that constitutes four laps, a heat insulating material that is filled inside the frame material, a surface plate material that forms a surface side of the frame material and the heat insulating material, and the frame material. And a back plate material constituting the back surface side of the heat insulating material, the heat insulating material is filled inside the frame material constituting the four circumferences, and the front surface plate material and the back surface plate material are respectively bonded to the front and back surfaces of the frame material and the heat insulating material. It is formed as an integrated panel with a standard size that covers the area from the vicinity of the ridge to the eaves, and at the edge of the four peripheral edges adjacent to the other roof panel, either the front plate or the back plate Either one of the front plate member or the rear plate member extends outside the outer edge portion of the frame member, and the other of the front plate member and the rear plate member recedes to the inner side of the outer edge portion of the frame member. It can be joined to
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
FIG. 1 is an exploded perspective view showing a basic configuration of a roof panel used in an outer heat insulating roof structure and construction method according to the present invention, and FIG. 2 is a partial cross section showing a joint portion of the roof panel to be joined. FIG. FIG. 3 is an exploded perspective view showing an outer heat insulating roof structure according to the present invention.
[0017]
The roof panel 3 according to the present invention includes a frame member 31 that forms four laps, a heat insulating member 32 filled in a frame surrounded by the frame member 31, and the heat insulating member 32 and the surface side of the frame member 31. And a back plate material 34 constituting the back side of the heat insulating material 32 and the frame material 31.
[0018]
The frame member 31 of the roof panel 3 according to the illustrated embodiment is formed by assembling a woody material having a prospective dimension of about 150 mm.
[0019]
The heat insulating material 32 is formed using, for example, a foamed resin such as hard urethane, glass wool, or another general heat insulating material. The thickness of the heat insulating material 32 is about 150 mm in this example, but is arbitrarily set within a range that falls within the expected dimensions of the frame material 31. It is preferable to cope with the required heat insulation performance by appropriately selecting the material used for the heat insulating material 32.
[0020]
Both the front surface side and the back surface side of the frame material 31 and the heat insulating material 32 have a configuration in which a front surface plate material 33 and a back surface plate material 34 are bonded and sandwiched in a sandwich shape. These front plate member 33 and back plate member 34 may be formed of a single plate or a composite plate such as a metal plate, a vinyl chloride steel plate, and a resin plate as long as they have a predetermined strength. Here, the heat insulating performance is further improved. Therefore, it is formed of a wood-based face material such as a structural plywood. The wood-based face materials used for the front face plate material 33 and the back face plate material 34 are formed to a thickness of about 12 mm.
[0021]
The roof panel 3 has a frame member in which one of the front plate member 33 and the rear plate member 34 is a side edge portion located on the side adjacent to the other roof panel 3 except for the wing side of the roof among the four peripheral portions. 31 so that the other one of the front surface plate 33 and the back surface plate 34 is retracted to the inside of the outer edge of the frame member 31 so that the roof panels 3 can be joined together. Is formed.
[0022]
That is, in the joint portion where the plurality of roof panels 3 are joined together, as shown in FIG. 2, the side edge portion of one roof panel 3 a has the surface plate member 33 projecting outside the outer edge portion of the frame member 31. At the same time, the back plate member 34 is formed so as to recede to the inside of the outer edge portion of the frame member 31. And the side edge part of the other roof panel 3b retreats the surface board | plate material 33 only the protrusion of the surface board | plate material 33 of said one roof panel 3a, and the back surface board material 34 of the back surface board material 34 of said one roof panel 3a. It is formed to protrude by the amount of retreat.
[0023]
According to the roof panel 3, the cross-sectional dimension of the frame member 31 can be standardized, and the required heat insulating performance can be changed by changing the material regardless of the thickness of the heat insulating member 32. Finishing materials such as wings and eaves can be attached to the shaft assembly member in a common manner.
[0024]
Such a roof panel 3 is installed in the upper surface of the roof frame 1 of the building 10 top part, and the upper edge part of the wall surface material 2, as shown in FIG. In the illustrated form, the roof panel 3 is formed with a standard size that covers from the vicinity of the building 10 to the eaves.
[0025]
In the building 10, the frame members such as columns, girders, studs, and trunk edges are made of lightweight steel frames, and wall surfaces 2 such as outer wall panels and wall heat insulation panels having heat insulation properties are attached to form a wall surface. A roof frame 1 such as a main building is assembled on the top of the building 10 so that a roof material such as a roof panel 3 can be supported.
[0026]
In the outer heat insulating roof structure and construction method according to the present invention, prior to the installation of the roof panel 3, the airtight tape 4 is attached to the upper surface of the roof frame 1 and the upper edge of the wall material 2, which abuts against the back surface of the roof panel 3. Affixed.
[0027]
Here, the upper edge portion of the wall surface material 2 is formed so as to be flush with the upper surface of the roof frame 1. In this case, for example, a threading material is continuously attached to each upper edge portion of the plurality of adjacent wall surface materials 2, or the cross-sectional shape of the upper edge portion of the wall surface material 2 is formed along the roof gradient. Thus, the upper edge of the wall surface material 2 is flush with the upper surface of the roof frame 1.
[0028]
The airtight tape 4 used is a long strip having a thickness of about 10 mm, and has elasticity. The hermetic tape 4 is made of, for example, foamed resin such as foamed polyethylene, foamed urethane, or foamed polystyrene, or synthetic rubber such as foamed EPDM (ethylene / propylene / diene terpolymer). Such a foam is preferably a foam having independent bubbles (independent foam), but a material having an airtight face layer 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 adhered in this manner is obtained by pulling the roof panel 3 and the weight of the roof finishing material installed on the top of the roof panel 3 and the fixing bracket 7 (see FIGS. 4 and 5) described later. It 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 surface 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 stuck and the upper edge of the wall surface material 2. At this time, since the airtight tape 4 and the roof panel 3 overlap with each other with a sufficient width, the continuity of the heat insulation / airtight line is ensured satisfactorily.
[0031]
A plurality of the roof panels 3 are installed adjacent to each other via the surface plate member 33 or the back plate member 34 at the side edge of the roof panel 3 formed in a joint shape. That is, as shown in FIG. 2, it installs so that the side edge part of the adjacent roof panel 3a may be covered on the side edge part of the roof panel 3b previously installed on the roof frame 1 from upper direction. Then, the surface plate member 33 of one overlapping roof panel 3a and the frame member 31 of the other roof panel 3b are fastened by a fastener 5 such as a nail or a screw, and the adjacent roof panels 3 are joined together. Join.
[0032]
Furthermore, the airtight material 6 is stuck on the illustrated roof panel 3 between the back plate member 34 of one roof panel 3 and the frame member 31 of the other roof panel 3. The airtight material 6 is also formed of the same material as the airtight tape 4. The airtight material 6 also ensures airtightness between the adjacent roof panels 3.
[0033]
In addition, since the roof panels 3 are joined together, deformation such as warpage that may occur in the roof panel 3 is suppressed, no gap is formed between the roof panels 3, and the airtightness thereof is not impaired. . In addition, the fastening tool 5 such as a nail used in joining the roof panels 3 only connects the surface plate member 33 of one roof panel 3 and the frame member 31 of the other roof panel 3. The airtight material 6 and the heat insulation / airtight line formed on the indoor side are not damaged.
[0034]
4 and 5 show a method of fixing the roof panel 3 to the roof frame 1 according to the present embodiment, FIG. 4 (a) is a partial sectional view of the roof eaves, and FIG. 4 (b) is a perspective view of the fixing bracket. FIG. 5 and FIG. 5 are partial sectional views of the roof wings.
[0035]
As shown in the drawing, the roof panel 3 is fixed to the roof frame 1 using a fixing bracket 7. The fixing bracket 7 is formed such that two joint surfaces provided with bolt insertion holes 71 have a substantially L-shaped cross section. One joint surface of the fixture 7 is attached to the back plate member 34 of the roof panel 3, and the other joint surface is joined to the roof frame 1.
[0036]
In the illustrated embodiment, first, the roof panel 3 is lifted by a crane (not shown) and placed on the roof frame 1. Then, from the indoor side of the building 10, the fixing bracket 7 is temporarily tightened at an appropriate position on the back plate member 34 of the roof panel 3 so that the fixing bracket 7 and the roof frame 1 such as a main building can be joined.
[0037]
Subsequently, the temporarily fastened fixing bracket 7 is locked to the roof frame 1, and the fixing position of the roof panel 3 is adjusted while the roof panel 3 is slid along the roof frame 1. Then, after positioning the roof panel 3 in a fixed position, the fixing bracket 7 is finally tightened to fix the fixing bracket 7 and the roof panel 3 and the fixing bracket 7 and the roof frame 1.
[0038]
As described above, according to the present structure and construction method, the roof panel 3 can be installed while being slid using the fixing bracket 7, so that the roof panel 3 can be easily positioned and efficiently constructed. be able to. Further, the fixing bracket 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. Prevents mold generation and rusting of metal parts.
[0039]
Furthermore, in the outer heat insulating roof structure and construction method of the present embodiment, a ridge roof panel 3 c having the same heat insulating performance as the roof panel 3 is installed in the ridge portion of the building 10.
[0040]
The ridge roof panel 3c is configured such that a heat insulating material 32 having a mountain-shaped cross section that matches the shape of the ridge is sandwiched between a front surface plate material 33 and a back surface plate material 34 made of a wood-based surface material. This ridge roof panel 3 c 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. As a result, the continuity of the heat insulation / airtight line is ensured, and the workability of the roof finishing material is enhanced.
[0041]
After repeating the above procedure and installing and fixing a plurality of roof panels 3 and building roof panels 3 on the roof frame 1, roof finishing materials such as eave lining materials, eaves edges, galvanized steel plates, and tiles are Set up.
[0042]
Since the roof panel 3 is formed as a large one-piece panel filled with the heat insulating material 32, the installed roof panel 3 itself has a structure that also serves as a roof frame such as an eaves and a wing. Further, the roof plate 3 can be directly subjected to a roof finishing operation such as waterproofing or tile construction as a roof base (field plate).
[0043]
In the illustrated embodiment, the roof panel 3 is formed with a standard size that covers from the vicinity of the building 10 to the eaves, but the present invention is not limited to this, for example, the roof shape of the building or the like In the case where a plurality of roof panels 3 are installed in the flow direction according to the size and the like, the same heat insulating 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 are formed so that the upper edge portion of the wall surface material is flush with the upper surface of the roof frame. A roof panel having heat insulating properties is installed at the upper edge, and a heat insulating and airtight line is formed between the roof frame and wall surface material having the same plane and the back plate material of the roof panel.
[0045]
Therefore, it is possible to construct a roof having a certain thermal insulation performance without greatly requiring a special skill as well as significantly reducing the number of on-site construction man-hours. Further, since the roof panel surface plate material can be used as a roof base, a roof finishing material such as waterproofing and tiles can be directly installed, so that the work efficiency can be improved and the workability can be improved.
[0046]
Further, in the outer heat insulating roof structure and the roof construction method according to the present invention, the adhered airtight tape and the roof panel overlap with a sufficient width, so that the continuity of the heat insulating and airtight line is ensured well, and this The structure can be maintained for a long period of time and the structure is less likely to deteriorate.
[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 by simply connecting the surface plate material of one roof panel and the frame material of the other roof panel, such as a nail. There is no possibility of damaging the heat insulation / airtight line formed on the indoor side of the roof panel by the fastening tool, and the deterioration of the building due to condensation or the like can be prevented.
[0048]
In the roof panel according to the present invention, a heat insulating material is filled inside the frame material constituting the four circumferences, and the frame material and the heat insulating material are sandwiched between the front surface plate material and the back surface plate material. Since the parts can be joined together with adjacent roof panels, deformations such as warpage are suppressed between the joined roof panels, preventing the formation of gaps between the roof panels, as described above A suitable outer heat insulating roof structure and roof construction method can be suitably implemented.
[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 portion of a roof panel according to the present invention.
FIG. 3 is an exploded perspective view showing an outer heat insulating roof structure according to the present invention.
FIG. 4 is a partial cross-sectional view on the eaves side showing an outer heat insulating roof construction method according to the present invention.
FIG. 5 is a partial cross-sectional view of the wing side showing the outer heat insulating roof construction method according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof frame 2 Wall material 3 Roof panel 3c Building roof panel 31 Frame material 32 Heat insulating material 33 Surface plate material 34 Back surface plate material 4 Airtight tape 5 Fastening tool 6 Airtight material 7 Fixing bracket 71 Bolt insertion hole 10 Building

Claims (4)

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 heat insulating material on the inside of the frame material constituting the four circumferences, and both the front and back surfaces of the frame material and the heat insulating material are bonded and sandwiched between the front plate material and the back plate material, respectively , from the vicinity of the building to the eaves Is formed as an integrated panel with a standard size to cover,
The upper edge of the wall material is formed to be flush with the upper surface of the roof frame, and an airtight tape is continuously adhered between the roof frame and the wall material and the back plate of the roof panel. The heat insulating / air-tight roof is formed by joining the back plate material of the roof plate to the roof frame via a fixing bracket, and continuously forming a heat insulation / airtight line between the roof frame and the wall material and the back plate material of the roof panel. Construction. In joints where multiple roof panels are joined,
The side edge of one roof panel is formed with the surface plate projecting outside the outer edge of the frame material, and the back plate is retracted inside the outer edge of the frame material,
The side edge portion of the other roof panel is formed by retreating the surface plate material by the amount of protrusion of the surface plate material of the one roof panel, and the back surface plate material protruding by the amount of retraction of the back surface plate material of the one roof panel,
The outer heat insulating roof according to claim 1, wherein a surface plate member of one roof panel and a frame member of the other roof panel are fastened and adjacent roof panels are joined together in a joint shape. Construction.   At joints where multiple roof panels are joined, an airtight material is stuck between the frame material of one roof panel and the back plate material of the other roof panel, and the adjacent roof panels are joined airtightly. The outer heat insulating roof structure according to claim 2, wherein the roof structure is an outer heat insulating roof structure. A frame material constituting the four circumferences, a heat insulating material filled inside the frame material, a surface plate material constituting the surface side of the frame material and the heat insulating material, and a back surface constituting the back surface side of the frame material and the heat insulating material With plate material,
A standard type that fills the inside of the frame material that constitutes the four circumferences, adheres and sandwiches the front and back plate materials on both the front and back surfaces of the frame material and the heat insulating material, and covers from the vicinity of the building to the eaves And is formed as an integral panel
At the edge of the four peripheral edges on the side adjacent to the other roof panel, either the front plate member or the rear plate member projects outside the outer edge portion of the frame member, and either the front plate member or the rear plate member is A roof panel, wherein the roof panel is formed so as to recede inside an outer edge of the frame member and can be joined to an adjacent roof panel in a jointed manner .

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