JPH11256746A - Heat insulating panel for roof and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulating panel for a roof for ensuring easy heat insulation and construction of a roof portion, easy formation in an air tight condition and stronger joint of a foamed heat insulating material, and its manufacture. SOLUTION: Square bars 12 with cutouts 12c formed at the side of an inside facing material 11 are arranged at both ends of the sheet facing material 11, a foamed heat insulating material 13 is filled therein and the facing material 11 provided with protrusions 11a at both edges thereof is bent along the outside faces 12a of the square bard 12 to be long enough to reach the upper faces 12b of the square bars 12. When a heat insulating panel 10 for a roof is arrayed to be mounted on the framework of the roof, both side faces 12a of the square bars 12 are butted to each other and both facing materials 11 are superposed with each other to bend and fix the protrusions 11a from a part between the square bars 12 onto the upper face 12b of one of the square bars 12. In this way, a joint is sealed and mounted with the facing material 11 to ensure stronger joint to the foamed heat insulating material 13 with the cutouts 12c of the square bars 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating panel for a roof and a method for manufacturing the same, which can be easily airtightly installed and can improve the joint strength between a square member and a foamed heat insulating material. It is.

[0002]

2. Description of the Related Art In recent years, it has been attempted to improve the durability of a frame and reduce the cooling / heating load by providing high heat insulation and high air tightness as specifications of a general wooden house. Have been.

[0003] In the conventional external heat insulation method, heat insulation panels and the like are mainly attached to the outer wall and the ceiling of the building to insulate the heat. In addition, since the temperature rise in the back of the hut is large and the temperature of the heat insulating portion of the ceiling becomes considerably high even when the ceiling is insulated, the heat insulation of the roof has become important.

For this reason, when the roof is to be insulated, for example, as shown in FIG. 6, squares 2 are attached to both sides and an intermediate portion of a face plate 1 such as plywood, and a space between the squares 2 is provided. A heat insulating panel 4 similar to the heat insulating panel used for heat insulation of the outer wall portion filled with the foam heat insulating material 3 or the like is used, and as shown in FIG. Square wood 2 while matching 4
The comrades are connected and fixed with nails or the like, and a roof plate (not shown) is mounted thereon by mounting a field plate 6 thereon.

[0005] However, if the heat insulating panels 4 and 4 are merely mounted in abutting manner, the butted portions of the heat insulating panels 4 and 4 cannot be made airtight, and sufficient heat insulating performance cannot be ensured.

Accordingly, a sealing tape 7 is applied to the abutting portions of the heat insulating panels 4 and 4 from the back side of the shed to perform sealing, or a sealing material such as urethane is sprayed on the abutting surfaces when the heat insulating panels are abutted. The joint is airtight by performing joint processing such as the above.

[0007]

However, after the heat insulating panel 4 is attached, even if the tape 7 is stuck from the back side of the hut to secure an airtight state, the frame 5 is in the way and the tape 7 cannot be stuck. This makes it impossible to achieve a completely airtight state, and furthermore, there is a problem that construction is difficult and time is required.

Also, when a seal material such as urethane is used, there is a problem that the work of spraying the seal material is added in addition to the work of fixing the heat insulating panel with a nail or the like, which makes the work difficult.

Further, such a heat insulating panel 4 is manufactured by, for example, using a face material 1 and a square material 2 as a mold and injecting a stock solution of the foam heat insulating material 3 into the inside thereof.
The contact area between the foamed heat insulating material 3 and the square member 2 is smaller than the contact area between the foam and the face material 1, and the bonding strength is small, and further improvement in strength is desired. When a soft face material such as a synthetic resin film is used instead of the material, the joining strength between the square member 2 and the foamed heat insulating material 3 becomes important.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is easy to heat-insulate the roof portion, it is possible to easily make the air-tight state, and the roof has a large bonding strength of the foamed heat insulating material. It is intended to provide a heat insulating panel for use.

Another object of the present invention is to provide a method of manufacturing a heat insulating panel for a roof, which has a high bonding strength with a foam heat insulating material and can manufacture a heat insulating panel for a roof with a good yield.

[0012]

According to a first aspect of the present invention, there is provided a heat insulating panel for a roof, in which a rectangular piece is arranged on a sheet-like face material, and both end edges of the face material are provided. A protruding portion having a length that can be bent and fixed on the upper surface along the outer surface of the square bar, and a notch portion facing the inner side of the square bar disposed at both ends of the square bar. And a foam insulation material is filled and foamed on the face material between these square members.

According to this heat insulating panel for a roof, a square material having a cutout formed on the inner face material side is disposed at both ends on the sheet-shaped face material, and a foam heat insulating material is interposed therebetween. Protrusions are provided at both end edges of the face material, and it is bent along the outer surface of the timber to reach the upper surface.When installing this roof insulation panel side by side and attaching it to the roof frame, the side faces of the timber are At the same time, the protruding portions can be bent and fixed on the upper surface of one of the bar members from between the bar members, and the joints can be sealed with the panel members and attached. The notch portion improves the bonding strength with the foamed heat insulating material.

Further, in the roof heat insulating panel provided with the projection of the face material outside the square material, when the foamed heat insulating material protrudes outside the square material, the gap between the joints when the face material is bent to seal the joint part. However, the cutouts formed in the square bar prevent the foamed heat insulating material from protruding to the outside of the square bar, thereby providing a roof heat insulating panel that does not cause any problems during installation.

According to a second aspect of the present invention, in addition to the structure of the first aspect, the roof heat insulating panel is configured such that the foamed heat insulating material is lower than the height of the square member and the height of the cutout portion is reduced. The height is lower than the height of the foamed heat insulating material.

According to this heat insulating panel for a roof, the height of the foamed heat insulating material is made lower than the height of the square material, and the height of the cutout portion is made smaller than the height of the foamed heat insulating material.
At the same time as the joining strength is improved by increasing the contact area by the notch, a space for ventilation without heat insulation defects can be formed on the surface side of the foamed heat insulating material.

Further, according to the method for manufacturing a heat insulating panel for a roof according to the third aspect of the present invention, a square member having a cutout portion having a height lower than a filling height of a foamed heat insulating material is disposed at upper and opposite upper corners at intervals. Providing projections of a length that can be bent and fixed on the lower surface along the outer surface of the square material at both end edges, while foaming thermal insulation is sprayed onto one surface of the sheet-like surface material and foamed, and the foam thermal insulation is lowered. The foamed heat insulating material is covered so as not to protrude between the squares together with the sheet-like face material, and the upper face of the square material and the sheet-like face material are adhered to each other.

According to this method of manufacturing a heat insulating panel for a roof, contrary to the state of use, a square member having notches formed at opposing upper corners lower than the filling height of the foamed heat insulating material is spaced apart from the conveyor. Placed on the top, etc., and provided with protrusions of a length that can be bent and fixed on the lower surface along the outer surface of the square material at both end edges. The foamed heat insulating material is placed down so that the foamed heat insulating material does not protrude between the cutouts of the rectangular material together with the sheet-like surface material, and the upper surface of the rectangular material is bonded to the sheet-like surface material. The notch prevents the foamed heat insulating material from protruding into the protruding portion of the face material, thereby improving the yield, and at the same time, improving the adhesive strength with the square bar, thereby enabling the continuous production. .

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect, the method of manufacturing the roof insulating panel further comprises adjusting the injection of the foamed heat insulating material so that the foamed heat insulating material is made of the square material. It is characterized by being filled below the height.

According to this method of manufacturing a heat insulating panel for a roof, the injection of the foamed heat insulating material injected onto one side of the face material is adjusted,
The filling height is adjusted so as to be lower than the height of the square bar, so that a heat insulating panel for a roof having a ventilation space without heat insulation defects can be easily manufactured.

[0021]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 and FIG. 2 are an external perspective view and a partially enlarged view according to an embodiment of a heat insulating panel for a roof of the present invention.

The heat insulating panel 10 for a roof is provided with a sheet-like surface material 11, leaving projections 11a for sealing of joint portions at both end edges on the surface material 11, and rectangular materials 12 inside each of them. In addition to being arranged in parallel, square members 12 are also arranged in the middle part, and foam insulation materials 13 are filled between the respective square members 12, 12, and the face member 11 and the respective square members 1 are filled.
2. The face material 11 and the foamed heat insulating material 13 are bonded by their bonding action. In the drawing, reference numeral 14 denotes a temporary connecting member 14 for holding the shape of the heat insulating panel 10 for a roof, which is used by connecting three square members 12 to each other. While allowing
It is removed after construction.

Further, a projection 11a for sealing is formed on the outside of the square member 11 on the sheet-like face member 11 of the heat insulating panel 10 for a roof.
When folded along the outer side surface 12a and the upper surface 12b, at least about half the width of the upper surface 12b can be covered.

Further, of the three square members 2 of the heat insulating panel 10 for a roof, two square members 12 arranged at both ends (both sides) of the surface member 11 have an inner surface member 11 side (lower corner side). A notch portion 12c is formed opposite to the notch portion, and the notch portion 12c is also filled with a foamed heat insulating material 13.

As shown in FIG. 2, the notch 12c of the square member 12 is cut into, for example, a rectangular cross section, thereby increasing the area of contact with the foamed heat insulating material 13.
2 and the foamed heat insulating material 13 are improved in bonding strength.

Further, the square material 12 is pressed against the foamed heat insulating material 13 in a state where the stock solution of the foamed heat insulating material 13 is sprayed and foamed on the face material 11 by the cutout portion 12c of the square material 12. In this case, the foamed heat insulating material 13 is prevented from protruding to the outside, and the foamed heat insulating material 13 to be protruded to the outside is inserted into the notch portion 12c. The same applies to the case where the foamed heat insulating material 13 is pressed together with the face material 11 on the square material 12 arranged toward.).

For this reason, as a result of conducting various experiments, the cross-sectional area S of the cutout portion 12c of the square bar 12 was found to be substantially fan-shaped (quadrant) at the end of the foamed heat insulating material 13 foaming on the face material 11. It has been found that it is necessary to satisfy the following relationship with the area S1 of the circular portion.

1 / 2.S1.gtoreq.S.gtoreq.1 / 4.S1 The height H of the notch 12c of the square member 12 is made smaller than the filling height H1 of the foamed heat insulating material 13.

By doing so, it is possible to prevent the formation of a gap in which the foamed heat insulating material 13 is not filled above the cutout portion 12c, and to prevent the heat insulating defect in the heat insulating panel 10 for the roof.

Therefore, the notch 12c is formed in the square member 12 so as to satisfy this relationship, and the foam insulation 1
By adjusting the foaming state of the end of the square 3, the square 12 and the foamed heat insulating material 13 are pressed in a state where the outer surface 12 a of the squared material 12 and the outer end of the foamed heat insulating material 13 are substantially aligned with each other. The foamed heat insulating material 13 can be prevented from protruding to the outside and can be integrally formed.

The shape of the notch 12c is not limited to the rectangular shape in the illustrated example, but may be a rectangular stepped shape, a part of a circle, or a part of an ellipse as long as it satisfies the above-described relationship of the cross-sectional area. Any cross-sectional shape such as a cross-sectional shape including a curve such as

In this heat insulating panel 10 for a roof,
For example, wood is used, and its thickness and length are selected so that it can also be used as rafters, for example, 60 × 60 × 3
000 mm or 60 × 60 × 4000 mm, and the size of the roof insulation panel 10 is, for example, 900 mm wide × 3000 mm long or 40 mm long.
Made in 00mm.

As a sheet constituting the face material 11,
Paper such as kraft paper and liner paper, plastic film such as polyethylene film, polypropylene form and nylon film, metal foil made of aluminum, iron, etc., laminated product of plastic film and metal foil, laminated product of plastic film and paper A flexible sheet such as a laminated product of metal foil and paper is used, and can be made airtight and moisture-permeable or airtight and moisture-impermeable in consideration of moisture.

Further, as the foam heat insulating material 13, a self-adhesive synthetic resin foam such as a rigid polyurethane foam can be used, and the height (thickness) of the foam heat insulating material 13 is the height (thickness) of the square material 12. Thickness), but by making it thinner than the height (thickness) of the square timber 12, the roof insulation panel 10 having a ventilation space can be obtained.

The heat insulating panel 10 for a roof constructed as described above.
The heat insulation of the roof using the method will be described with reference to FIG.

In the roof insulation panel 10, the roof timbers 10 are arranged by arranging the timbers 12 on the frame 5 of the roof purlin or the like so as to also serve as rafters. The face material 11, between the ten square materials 12, 12,
The 11 projecting portions 11a, 11a are overlapped and protruded upward, and the square members 12, 12 or the square member 12 and the frame 5 are fixed with nails or the like, respectively.

Then, the temporary connecting members 14 for connecting the square members 12 are removed, and the stacked protrusions 11a, 11a are bent to the upper surface 12b of one of the square members 12.

The protruding portions 1 of the superposed face materials 11, 11
1a and 11a are fixed to the timber 12 with a fixture such as a nail.

Thereafter, these roof insulation panels 10, 1
The base plate 6 is stretched on the square timbers 12 and 12 and fixed with nails or the like, and the roof material is attached in the same manner as in the related art.

By attaching the roof heat insulating panel 10 in this manner, the joints on the indoor side of the roof heat insulating panels 10, 10, which are on the back side of the hut, are completely sealed by the overlapped face materials 11, 11, and completely airtight. In particular, since the foamed heat insulating material 13 does not protrude outside the square member 12, the adjacent roof insulating panels 10, 10 can be arranged without gaps.

When the roof insulation panel 10 is mounted, the protrusion 11a of the face member 11 protruding sideways is used.
It is only necessary for the competitors to overlap and protrude upward, and the installation of the heat insulating material and the sealing work of the joint are completed in the work process that is almost the same as the mounting work of the conventional rafters, and the installation of the rafters and the insulation work in a short time Can be performed up to the sealing of the joint.

Further, in the heat insulating panel 10 for a roof, the protruding portions 11a of the face material 11 are connected to each other by a fixing tool such as a nail.
Unlike the fixing with an adhesive or the like, it is physically fixed and therefore has excellent durability and can maintain an airtight state for a long time.

The thermal insulation panel 10 for a roof, even if it is a gabled roof or a roof of a ridge, is placed on each shaft set, and the projections 11a of
By fixing with the upper surface 12b, heat insulation of the roof portion can be easily performed.

The present invention is not limited to the case where the timber 12 of the heat insulating panel 10 for a roof is also used as a rafter and is attached to the frame 5, but may be attached to a rafter attached to the frame or a field board. Can also.

Next, an embodiment of a method for manufacturing a heat insulating panel for a roof according to the present invention will be described in detail with reference to the drawings.

FIGS. 4 and 5 are a side view and a sectional view taken along arrows AA, BB and CC in FIG. 4 according to an embodiment of the method for manufacturing a heat insulating panel for a roof according to the present invention. It is.

In the method for manufacturing a heat insulating panel for a roof according to the present invention, the sheet-like face material 21 wound in a roll shape is continuously supplied onto an endless mold member 22 with the inside facing upward.
The foaming stock solution of the foamed heat insulating material 23 is jetted upward from the jetting nozzle 24.

The foaming stock solution is sprayed on the face material 21 by the injection nozzle 2.
In the case of injecting from 4, the injection amount and the injection width are adjusted according to the properties of the foaming undiluted solution, and the thickness and width of the foamed heat insulating material 23 after the completion of the foaming are adjusted.

On the other hand, a conveyor 25 is provided below the endless mold member 22 and moves in the same direction as the endless mold member 22. They are supplied side by side according to the arrangement.

Of the three square members 26 on the conveyor 25, two on both sides are formed with a notch 26a formed in the upper part on the inside, and are arranged in a state in which the roof heat insulating panel 20 in use is reversed. Supply.

Next, the face material 21 in which the foaming undiluted solution is injected and the foaming is progressing is reversed, and the foam heat insulating material 23 is turned into the face material 2.
1 and the surface material 21 and the square material 26
The heat insulating foam member 23 is pressed so as to cover the heat insulating material, the face material 21, the foam heat insulating material 23, and the square member 26 are integrated, and the heat insulating panel 20 for a roof is manufactured continuously.

When the foamed heat insulating material 23 is to be covered with the face material 21 on the lower surface, the edges of the foamed heat insulating material 23 and the face material 21 are formed at both ends of the square material 26 on the conveyor 25.
The roof insulation panel 20 in which only the protruding portion 21a of the face material 21 protrudes so as to substantially coincide with the outer side surface of the roof panel 20 is manufactured.

As a result, the foamed heat insulating material 23 is filled between the square members 26 without protruding, the bonding strength is increased by the cutout portion 26a, and the foamed heat insulating material 23 is firmly bonded. There is no occurrence at all, and the yield is improved.

In addition to the problem of the yield, if the face material 21 with the foamed heat insulating material 23 is covered over the square material 26 having no cutout 26a, the corner of the square material 26 with the outer face material 21 may be formed. The foam insulation 23 will protrude,
When it is not necessary to make the face material protrude to the outside of the timber as in the conventional thermal insulation panel for the roof, it is only necessary to cut off the face material together with the foamed heat insulating material protruding with a cutter or the like. In the case where the projecting portion 21a of the sealing face material 21 at the time of mounting is required as in the case of the heat insulating panel 20, the conventional continuous manufacturing method cannot cope with it, and the manufacturing method of the roof insulating panel 20 is not possible. Is extremely effective.

[0055]

As described above in detail with the embodiments, according to the heat insulating panel for a roof according to the first aspect of the present invention, both ends on the sheet-like face material are provided on the inner face material side. The lumber with the notch formed in it was placed, and the protrusions were provided at both ends of the face material of the heat insulating panel filled with foamed heat insulating material between them, and the length was reached along the outer surface of the lumber to reach the upper surface. When the roof insulation panels are arranged side by side and mounted on the roof frame, the sides of the timbers can be abutted against each other, and the face materials can be overlapped and the protruding part can be bent and fixed on the upper surface of one of the timbers from between the timbers. Thus, the joint portion can be sealed and attached with the face material, and the cutout of the square material can improve the bonding strength with the foamed heat insulating material.

Further, in the roof heat insulating panel provided with the projection of the face material outside the square material, when the foamed heat insulating material protrudes outside the square material, the gap between the joints when the face material is bent to seal the joint part. However, the cutout formed in the square bar prevents the foamed heat insulating material from protruding to the outside of the square bar, thereby providing a roof heat insulating panel that does not cause any problems during installation.

According to the heat insulating panel for a roof according to the second aspect of the present invention, the height of the foamed heat insulating material is set lower than the height of the square bar, and the height of the cutout portion is set lower than the height of the foamed heat insulating material. Therefore, it is possible to improve the bonding strength by increasing the contact area due to the notch, and at the same time, to form a ventilation space without heat insulation defects on the surface side of the foamed heat insulating material.

Further, according to the method for manufacturing a heat insulating panel for a roof according to the third aspect of the present invention, opposite to the state of use, the notch formed at the opposite upper corner is lower than the filling height of the foamed heat insulating material. The squared lumber is placed on a conveyor or the like with an interval, and protrusions of a length that can be bent and fixed on the lower surface along the outer surface of the squared bar at both end edges are provided with foam insulation on one surface of the sheet-shaped panel. While foaming and injecting the material, cover the foam insulation so that the foam insulation does not protrude between the cutouts of the square material with the foam insulation material facing down, and the upper surface of the square material and the sheet-like surface material It is possible to improve the yield by preventing the foam insulation material from protruding to the face material projection by the cutout of the square material, and at the same time to improve the adhesive strength with the square material. In particular, continuous production can be easily performed.

According to the method for manufacturing a heat insulating panel for a roof according to claim 4 of the present invention, the injection of the foamed heat insulating material to be sprayed on one surface of the face material is adjusted, and the filling height is adjusted to adjust the height of the square material. Since the height is set lower than that, it is possible to easily manufacture a heat insulating panel for a roof having a ventilation space free from heat loss.

[Brief description of the drawings]

FIG. 1 is an external perspective view of an embodiment of a roof heat insulating panel of the present invention.

FIG. 2 is a partially enlarged view of one embodiment of the heat insulating panel for a roof of the present invention.

FIG. 3 is an enlarged view of a roof heat-insulating panel according to an embodiment of the present invention when mounted on a roof.

FIG. 4 is a side view of one embodiment of a method for manufacturing a heat insulating panel for a roof according to the present invention.

FIG. 5 is a cross-sectional view of each of AA, BB, and CC in FIG. 4 according to the embodiment of the method for manufacturing a heat insulating panel for a roof of the present invention.

FIG. 6 is an external perspective view of a conventional heat insulating panel for a roof.

FIG. 7 is a side view and a partially enlarged view of a state where a conventional heat insulating panel for a roof is attached to a roof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 5 Frame set 6 Field board 10 Roof insulation panel 11 Face material 11a Projection part 12 Square material 12a Outer side surface 12b Top surface 12c Notch part 13 Foam insulation material 14 Temporary connection material 20 Roof insulation panel 21 Face material 21a Projection 22 Endless type Member 23 Foam insulation material 24 Injection nozzle 25 Conveyor 26 Square material 26a Notch

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04D 3/35 E04D 3/35 A

Claims (4)

[Claims] 1. A square member is disposed on a sheet-like surface member, and both end edges of the surface member are provided with protrusions having a length that can be bent and fixed on an upper surface along an outer side surface of the square member, and Opposing notches are formed on the side of the face material inside the squares arranged at both ends of the face material, and foam insulation is filled and foamed on the face between the squares. Roof insulation panels. 2. The heat insulating panel for a roof according to claim 1, wherein the height of the foam heat insulating material is lower than the height of the square bar, and the height of the cutout portion is lower than the height of the foam heat insulating material. 3. A square member having a cutout portion lower than the filling height of the foamed heat insulating material is arranged at upper and opposite upper corners at intervals, and bent on the lower surface along the outer side surface of the square member at both end edges. While foaming and heat-insulating material is sprayed and foamed on one side of the sheet-like face material provided with a protruding portion having a fixable length, the foam-like heat insulating material is turned down and the foam-like heat insulating material is placed between the squares with the sheet-like face material facing down. A method of manufacturing a heat insulating panel for a roof, wherein the heat insulating panel is covered so as not to protrude, and the upper surface of the square bar is bonded to the sheet-like panel. 4. The method of manufacturing a heat insulating panel for a roof according to claim 3, wherein the injection of the foamed heat insulating material is adjusted to fill the foamed heat insulating material with a height lower than the height of the square bar.