JP2007247361A - Roof panel and ventilating roof backing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and inexpensively construct a roof backing structure having ventilation performance, and superior in heat insulation performance. <P>SOLUTION: A plurality of heat insulation main plates 3A composed of a plastic foaming body are arranged via a rafter width. The mutual heat insulation main plates 3A are connected by sticking a slender heat insulation connecting plate 3B composed of the plastic foaming body from the upper side. A plurality of heat insulation materials 3 forming a connecting part as a rafter fitting part 5, are adhered to an under surface of a sheathing face material 2 via the heat insulation connecting plate 3B. The ventilation performance of the roof backing structure is secured by forming a ventilation passage 4 equivalent to the thickness of the heat insulation connecting plate 3B between the mutual heat insulation connecting plates 3B between the sheathing face material 2 and the heat insulation main plate 3A. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a roof panel and a breathable roof base structure using the roof panel.

As shown in FIG. 12, the conventional breathable roof foundation structure has a trunk edge (24) fixed on the upper surface of the lower field material (22) at a predetermined interval, and the gap between the trunk edges (24). Inserting a heat insulating material (23), fixing the roof base panel (21) with the trunk edge (24) protruding from the top surface of the heat insulating material (23) on the rafter (26), the roof base panel (21) There is provided a structure in which an upper field material (25) is stretched on the upper side of the trunk edge (24) (see Patent Document 1, for example).
Japanese Patent No. 3657935

  In the conventional breathable roof base structure, a gap (27) is provided between the heat insulating material (23) and the upper field material (25) with the trunk edge (24) serving as a spacer, Air permeability is imparted by the gap (27). However, in this structure, the heat insulating material (23) is interrupted at the position of the trunk edge (24) and becomes a heat insulation defect part, and the field ground material is necessary on the upper side and the lower side, and the trunk edge is also necessary. There is a problem that the number of members is increased, the material cost is increased, and the construction is troublesome. In addition, since the thickness of the roof is increased, there is a problem that the design of the building is inferior.

In the present invention, as means for solving the above-described conventional problems, a plurality of heat insulating main plates (3A) made of plastic foam are arranged via rafters, and the heat insulating main plates (3A) are made of plastic foam. A long and thin heat insulating connecting plate (3B) is attached by sticking from above, and a plurality of heat insulating materials (3) with the connecting portion as a rafter fitting portion (5) are attached to the lower surface of the field ground material (2). Adhering via the heat insulating connecting plate (3B), between the field material (2) and the heat insulating main plate (3A), between the heat insulating connecting plate (3B) between the heat insulating connecting plate (3B ) To provide a roof panel (1) having an air passage (4) with a thickness of 4).
It is desirable that the heat insulating main plate (3A) and the heat insulating connecting plate (3B) have the same heat insulating performance.
In the present invention, a urethane resin foam or a phenol resin foam in which plastic films are stuck on both upper and lower surfaces can be used as the plastic foam.
Further, in the present invention, the roof panel (1) is applied onto the rafter (6) of the roof skeleton, and the rafter (6) is attached to the rafter fitting groove (5, 5) of the heat insulating material (3) of the roof panel (1). 5A) is provided, and a breathable roof foundation structure is provided in which the ventilation path (4) of the roof panel (1) is opened to the outside air at the eaves and the ridge.
Further, in the above-described breathable roof base structure, at least the connection between the roof panels (1,1), the insulating material (3,3) of the roof panel (1,1) and the rafter (6) It is desirable that a sealing material (8) is interposed on the joining surface, and the lower surface of the heat insulating material (3) of the roof panel (1) deposited on the rafter (6) is a wall heat insulating material at the eaves portion. The gap formed between the lower surface of the heat insulating material (3) of the roof panel (1) and the upper end of the wall heat insulating material (20) is filled with the sealing material (9). In the building, the gap between the left and right roof panels (1,1) is filled with the sealing material (10) so as not to block the ventilation channels (4,4) of the roof panels (1,1). It is desirable to do. The sealing material (10) is preferably a heat insulating sealing material made of a soft plastic foam, and when the building (17A) or the main valley (17C) is present on the constructed roof (17), The left and right roof panels (1,1) facing each other in this part are made to face each other via a corner tree (18) or a valley tree (19), and the top surface of the heat insulating main plate of the heat insulating material (3,3) Align the left and right top surfaces of the tree (19) so that the vent (4, 4) of the heat insulating material (3, 3) is not blocked by the corner tree (18) or the valley tree (19). 17A), a lateral air passage was provided between the left and right heat insulating materials (3, 3), and the lateral air passage was communicated with the air passage (4, 4) of the roof panel (1, 1). Further, the end face of the heat insulating main plate (3A) of the heat insulating material (3) is joined to the side surface of the corner tree (18) or the valley tree (19) through the sealing material (10) so that there is no gap. It is desirable.

[Action]
In the air-permeable roof foundation structure using the above roof panel (1), there is no insulation deficient part because the insulation connecting plate (3B) of the insulation (3) exists on the rafter (6). In addition, an air passage (4) is provided between the heat insulating connecting plate (3B) between the field material (2) of the roof panel (1) and the heat insulating main plate (3A) of the heat insulating material (3). Since the air passage (4) is open to the outside air at the eaves and the ridge, the air permeability of the roof is ensured without increasing the thickness of the roof. And since the heat insulation connecting plate (3B) of the heat insulating material (3) is arranged above the rafter fitting groove (5, 5A) of the roof panel (1), there is a heat insulation deficient portion due to the rafter on the roof. It disappears and it becomes an outer heat insulation structure.

At least at the connection between the roof panels (1,1), a sealing material (8) is provided on the joint surface between the heat insulating material (3,3) and the rafters (6,6) of the roof panel (1,1). When interposed, the airtightness of the roof base structure is ensured. Furthermore, the lower surface of the heat insulating material (3) of the roof panel (1) deposited on the rafter (6) is brought into contact with the upper end of the wall heat insulating material (20) at the eaves portion, and the heat insulating material of the roof panel (1) The gap formed between the lower surface of (3) and the upper end of the wall insulation (20) is filled with sealing material (9), and in the ridge, the gap between the left and right roof panels (1,1) If the sealing material (10) is filled so as not to block the air passages (4, 4) of the roof panel (1,1), the airtightness of the roof base structure is ensured, but the sealing material (10 ) Is a heat insulating sealing material made of a soft plastic foam, it becomes a roof base structure having a continuous heat insulating structure, and the heat insulating property of the roof (17) is improved. When there is a dormitory (17A) or Motoya (17C) on the roof (17) to be constructed, the left and right roof panels (1,1) that face each other are connected to the corner (18) or the valley (19). The top surface of the cross-section main plate of the heat insulating material (3, 3) is aligned with the left and right top surfaces of the corner tree (18) or the valley tree (19), and the corner tree (18) or the valley tree (19) In order to prevent the air passage (4, 4) of the heat insulating material (3, 3) from being blocked, a side air passage is provided between the left and right heat insulating materials (3, 3) in the dormitory (17A). Ensure heat insulation and breathability.
The heat insulating main plate (3A) and the heat insulating connecting plate (3B) of the heat insulating material (3) of the present invention are both manufactured by cutting a plastic foam plate, and no cutting is required. A urethane resin foam or a phenol resin foam in which plastic films are attached to both upper and lower surfaces can also be used as a material.

〔effect〕
In the present invention, the air permeability of the roof is ensured, and the heat insulation defect portion is eliminated from the roof, so that the heat insulation is greatly improved.

  The present invention will be described below with reference to an embodiment shown in FIGS. The roof panel (1) includes a field material (2) and a heat insulating material (3) bonded to the lower surface of the field material (2) with an adhesive. The heat insulating material (3) is polystyrene foam, polyethylene foam, polypropylene foam, semi-rigid polyurethane foam, semi-rigid polyurethane foam having a plastic film attached on both upper and lower surfaces, phenol resin foam, melamine resin foam It is made of a plastic foam such as a body, and consists of a plurality of heat insulating main plates (3A) and a pair of heat insulating main plates (3A) that are connected to each other, and a pair of heat insulating main plates (3B). A rafter fitting groove (5) is formed between 3A), the heat-insulating connecting plate (3B) is attached to the adjacent portion of the pair of heat-insulating main plates (3A) from above, and the heat insulating material (3) is the heat insulating material (3). It is bonded to the field ground material (2) via a connection plate (3B), and thus the heat insulation connection plate is interposed between the field ground material (2) and the heat insulation main plate (3A) of the heat insulation material (3). The air passage (4) corresponding to the thickness of (3B) is formed. At both ends of the roof panel (1), the heat insulating connecting plate (3B) and the field ground material (2) of the heat insulating material (3) are both extended from the heat insulating main plate (3A), and the extended portion ( The rafter fitting grooves (5A) on the lower side and both ends of 3C). The width of the fitting groove (5A) at both ends is set to ½ of the width of the other fitting groove (5).

  As shown in FIG. 3, the roof panel (1) is deposited on the rafter (6) of the roof skeleton, and the rafter (6) is attached to the rafter fitting groove (3) of the heat insulating material (3) of the roof panel (1). 5,5A). In this state, the heat insulating connecting plate (3B) of the heat insulating material (3) covers the upper side of the rafter (6) and eliminates the heat insulating defect due to the rafter. In order to enhance the heat insulation efficiency, the thickness of the heat insulation connecting plate (3B) is desirably 20 mm or more.

  As shown in FIG. 4, the rafter (6) is supported on the lower side by an eaves girder (7A), a purlin (7B), and a purlin (7C). Then, in the lateral interconnection portion of the roof panel (1), as shown in FIG. 3, a sealing material (8) is provided between the heat insulating main plate (3A) and the rafter (6) of the heat insulating material (3). Airtightness is ensured by interposing.

  Further, in the eaves portion, the air passage (4) eaves side end of the roof panel (1) is open to the outside air, and the lower surface of the heat insulating main plate (3A) of the heat insulating material (3) is a wall heat insulating material ( 20), and a gap formed between the lower surface of the heat insulating main plate (3A) of the heat insulating material (3) of the roof panel (1) and the upper end of the wall heat insulating material (20). Is filled with a heat-insulating sealing material (9) made of soft plastic foam such as soft polyurethane foam, soft polyvinyl chloride foam, synthetic rubber sponge, etc., and roof insulation (3) and wall insulation (20) This prevents the continuity of the heat insulating structure from being interrupted. Furthermore, even in the ridge, the gap between the joints of the left and right roof panels (1,1) is filled with the same heat insulating sealing material (10) to prevent the continuity of the heat insulating structure from being interrupted. However, the heat insulating sealing material (10) is provided between the heat insulating main plates (3A) of the heat insulating material (3) of the roof panel (1) so as not to block the air passage (4) of the roof panel (1). The ridge side end of each ventilation channel (4,4) of the roof panel (1,1) is filled in the horizontal ventilation channel (11) formed between the left and right roof panels (1,1) along the building. It is set to be released.

  As shown in FIG. 5, a roof material (12) is provided on the upper surface of the field material (2) of the roof panel (1). In the ridge, the draining plate (14) is covered with the caps (13, 13). A building ventilation member (16) as shown in FIG. 6 and FIG. 7 is attached to a predetermined portion of the building, and the lateral ventilation path (11) of the roof (17) attaches the building ventilation member (16). It is set to be open to the outside air. The ridge ventilation member (16) is made of plastic such as polypropylene and polyvinyl chloride, and is composed of a cap-shaped draining plate (16A) and a breathable block (16B) bonded to both sides of the lower surface of the draining plate (16A). The air-permeable block (16B) is provided with a large number of communication holes, for example, in a honeycomb shape.

  In the roof (17) above, the ventilation on the eaves side is performed by the eave end of the ventilation channel (4) of the roof panel (1) being directly open to the outside air, and the ventilation on the ridge side is performed on the roof panel (1 ) Is opened to the lateral ventilation path (11), and the lateral ventilation path (11) is opened to the outside air through the building ventilation member (16).

  On the roof (17), as shown in FIG. 8, there may be formed a berth (17A) whose both ends are inclined inward. In this case, as shown in FIG. 9, in the dormitory part (17A), the heat insulating material (3B) of the heat insulating material (3) of the left and right roof panels (1,1) is moved from the heat insulating main plate (3A) to the dormitory side. The extended part is suspended from the left and right top edges of the corner tree (18). At this time, the upper surface of the heat insulating main plate (3A) of the heat insulating material (3) of the left and right roof panels (1, 1), that is, the upper surface of the rafter (6) is aligned with the left and right top end surfaces of the corner tree (18), and the air passage 4, 4) is not blocked by the corner tree (18), and the extension of the ground insulating material (2, 2) of the left and right roof panels (1, 1) and the connecting heat insulating plate (3B) of the heat insulating material (3). The leading end is set so as to face each other through a gap, and a lateral ventilation path (11A) through which the communication path (4) of the roof panel (1) communicates is provided in the berth part (17A). The end face of the heat insulating main plate (3A) of the heat insulating material (3, 3) of the roof panel (1,1) on both sides is in close contact with the side surface of the corner wood (18), and further, the lower end of the joint portion of the heat insulating main plate (3A) Seal with a heat insulating sealing material (10A) to ensure airtightness. The dormitory part (17A) is covered with a draining plate (14) through caps (13, 13) in the same manner as the ridge part.

  Further, as shown in FIG. 10, there is a structure in which a roof (17B) branches at a right angle from the center. In this case, the main valley portion (17C) is formed between the roof (17) and the branched roof (17B). Also in this case, as shown in FIG. 11, the valley (19) is fitted between the heat insulating main plates (3A) of the heat insulating materials (3, 3) of the left and right roof panels (1,1). The upper surface of the heat insulating main plate (3A), that is, the upper surface of the rafter (6) is aligned with the left and right top end surfaces of the valley (19). At that time, the extended ends of the field ground material (2) of the left and right roof panels (1,1) and the connecting heat insulating plate (3B) of the heat insulating material (3) are attached to each other, and the reverse shade-shaped draining plate ( 14A). The end face of the heat insulating material (3) of the roof panel (1,1) on both sides is in close contact with the side surface of the valley (19), and the lower end of the joint portion of the heat insulating main plate (3A) is the heat insulating sealing material (10B). Seal to ensure airtightness.

  In the present invention, there is no heat insulation defect portion in the roof base structure, the roof heat insulation effect is improved, and the roof is efficiently ventilated with a small number of members without the need for another torso or field plate. Can be used industrially.

1 to 11 show an embodiment of the present invention.
Partial perspective view of insulation and field material Cross section of roof panel Partial cross-sectional view of roof panel on roof skeleton Partial longitudinal sectional view of the roof panel on the roof skeleton Cross section of the building Cross-sectional view of the ridge (building ventilation member mounting part) Front view of building ventilation components Illustration of roof with dormitory AA sectional view in FIG. Illustration of the roof with Motoya part BB sectional view in FIG. Partial cross-sectional view of a conventional roof panel deposited on the roof

Explanation of symbols

1 Roof panel
2 Field material
3 Insulation
3A heat insulation main plate
3B heat insulation connecting plate
4 Ventilation path
5,5A Rafter fitting groove (part)
6 rafters
8,9,10 Sealing material
17 Roof
18 Sumiki
19 Tanigi
20 Wall insulation

Claims (9)

A plurality of heat insulating main plates made of plastic foam are arranged through a rafter, and the heat insulating main plates are connected to each other by adhering an elongated heat insulating connecting plate made of plastic foam from above, and the connecting portion is connected to the rafter. A plurality of heat insulating materials as fitting portions are bonded to the lower surface of the field ground material via the heat insulating connecting plate, and between the field ground material and the heat insulating main plate, between the heat insulating connecting plates, A roof panel characterized in that an air passage corresponding to the thickness of the heat insulating connecting plate is formed. The roof panel according to claim 1, wherein the heat insulating main plate and the heat insulating connecting plate have equivalent heat insulating performance. The roof panel according to claim 1 or 2, wherein the plastic foam is a urethane resin foam or a phenol resin foam in which plastic films are attached to both upper and lower surfaces. A roof panel according to claim 1 or 2 or 3 is deposited on a rafter of a roof skeleton, the rafter is fitted into a rafter fitting groove of a heat insulating material of the roof panel, and the roof is formed at an eaves edge and a ridge. Breathable roof foundation structure characterized by opening the ventilation path of the panel to the outside air. The breathable roof foundation structure according to claim 4, wherein a sealing material is interposed at a joint surface between the heat insulating material and the rafter of the roof panel at least at a connection portion between the roof panels. The lower surface of the heat insulating material of the roof panel deposited on the rafter is brought into contact with the upper end of the wall heat insulating material at the eave portion and is formed between the lower surface of the heat insulating material of the roof panel and the upper end of the wall heat insulating material. The air permeability according to claim 4 or 5, wherein the gap is filled with a sealing material, and the gap between the left and right roof panels is filled with the sealing material so as not to block the air passages of the roof panels. Roof foundation structure. The breathable roof foundation structure according to claim 5 or 6, wherein the sealing material is a heat insulating sealing material made of a soft plastic foam. When there is a dormitory part or main valley part on the constructed roof, the left and right roof panels facing each other are made to face each other via a corner tree or a valley tree, and the upper surface of the heat insulation main plate of the heat insulating material is left and right of the corner tree or the valley tree. Align the top surface so that the ventilation path of the heat insulating material is not blocked by corners or valleys, and in the dormitory section, a horizontal ventilation path is provided between the left and right heat insulating materials, and the horizontal ventilation path is The breathable roof foundation structure according to any one of claims 4 to 7, wherein the roof panel is communicated with a ventilation passage of the roof panel. 9. The breathable roof base structure according to claim 8, wherein the end face of the heat insulating main plate of the heat insulating material is joined to the side face of a corner tree or a valley tree via a sealing material without a gap.

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