JP4339780B2 - Insulation structure of roof - Google Patents

Description

  The present invention relates to a heat insulating structure for a roof such as a gable or a dormitory.

  Conventionally, various structures have been adopted in order to improve the heat insulation of the roof. In the roof shown in FIG. 8, a heat insulating member 4 is provided on the back side of the field plate 3 so as to cover the lower surface side (back side) of the field plate 3 with a space from the field plate 3. A plurality of plate-like heat insulating members 4 are provided adjacent to each other between a plurality of purlins 55 arranged at intervals in the flow direction (inclination direction) of the roof. The end portions of the heat insulating members 4 and 4 are overlapped with each other, and a fixing tool 56 such as a nail is struck and fixed to the lower surface of the purlin 55 (see, for example, Patent Document 1). Reference numeral 60 denotes a roofing material.

  In the roof shown in FIG. 9, the base plate 3 and the heat insulating member are provided by providing the base plate 3 on the rafter 1 extending in the flow direction of the roof and providing the heat insulating member 4 made of a heat reflecting film below the rafter 1. 4, an air layer 5 is formed, and heat entry / exit through the roof is relaxed by the air layer 5 to enhance the heat insulating property of the roof (see, for example, Patent Document 2).

  However, in the structure as described above, the heat insulating member 4 is attached to the main building 55 and the rafter 1 so as to cover the lower surface of the main building 55 and the rafter 1 with the heat insulating member 4 such as aluminum foil which has little air permeability. Further, there is a problem that air permeability between the air layer 5 and the attic space (the space below the heat insulating member 4) cannot be ensured through the rafters 1, and moisture tends to accumulate in the attic space and easily corrode.

Therefore, it is considered that the lower surface of the rafter 1 is not covered with the heat insulating member 4 by arranging the heat insulating member 4 so as to span between the opposing surfaces of the adjacent rafters 1 as shown in FIG. Thus, in the case where the reinforcing material (rolling prevention etc.) 2 is installed between the adjacent rafters 1, 1, the heat insulating member 4 must be divided at the location of the reinforcing material 2. There was a problem that heat insulation was impaired.
Japanese Patent Laid-Open No. 10-280577 Japanese Patent Laid-Open No. 5-1448

  The present invention has been made in view of the above points, and provides a heat insulating structure for a roof that can prevent the heat insulating property at the location of the reinforcing material from being impaired while ensuring the air permeability through the rafters. It is intended.

The present invention includes a plurality of rafters 1, 1... Arranged with a gap therebetween, a plurality of reinforcing members 2, 2. A base plate 3 disposed on the reinforcing member 2, a heat insulating member 4 disposed on the back side of the base plate 3 at a distance from the base plate 3, and the base plate 3 and the heat insulating member 4. In the heat insulating structure of the roof provided with the air layer 5 formed therebetween, the heat insulating member 4 is arranged for each space surrounded by the adjacent rafters 1, 1 and the adjacent reinforcing members 2, 2, The heat insulating members 4 and 4 adjacent to each other with the rafter 1 interposed therebetween are separated from each other at a position corresponding to the rafter 1, and the heat insulating members 4 and 4 adjacent to each other with the reinforcing member 2 interposed therebetween are connected by a joint member 6 having heat insulating properties. and which, the joint member 6, forming a substantially rectangular substrate 8 as the single board material 18 in plan view It is characterized in that the upper surface of the Rutotomoni substrate 8 formed by formed by providing a single plate material for 18.

  In the present invention, the heat insulating members 4, 4 adjacent to each other with the rafter 1 interposed therebetween can be connected to each other by the ventilation sheet 7.

In the present invention, the joint member 6 is composed of the substrate 8 and the sandwiching piece 9 formed of the plate material 18 provided on the surface thereof, and the heat insulating members 4, 4 adjacent to each other with the reinforcing member 2 interposed therebetween. Is preferably connected by sandwiching the end portion between the substrate 8 of the joint member 6 and the sandwiching piece 9.

  Moreover, in this invention, the joint member 6 can be fixed to the opposing surface of the rafters 1 and 1 which adjoin.

  Moreover, in this invention, the joint member 6 can be formed in a substantially rectangular shape by planar view.

In the present invention, since the heat insulating members 4 and 4 adjacent to each other with the rafter 1 sandwiched therebetween are separated from each other at a position corresponding to the rafter 1, the lower surface of the rafter 1 can be prevented from being covered with the heat insulating member 4. ,
Air permeability between the air layer 5 and the space below the heat insulating member 4 can be ensured through the rafter 1, and the heat insulating members 4 and 4 adjacent to each other with the reinforcing member 2 interposed therebetween have heat insulating properties. In order to connect by the joint member 6, the heat insulation members 4 and 4 which adjoin by the joint member 6 which has heat insulation in the location of the reinforcement material 2 can be continued, and the heat insulation in the location of the reinforcement material 2 is not impaired. It is something that can be done. Further, the joint member 6 is formed by forming the substantially rectangular substrate 8 and the piece plate 18 in plan view and providing the piece plate 18 on the upper surface of the substrate 8, so that the joint member 6 is seen in plan view. Even if the distance between the adjacent rafters 1 and 1 is different, the joint member 6 can be used by changing the direction of the joint member 6, so that one joint member 6 can cope with it. An increase in the number of parts can be prevented.

In addition, by connecting the heat insulating members 4 and 4 adjacent to each other with the rafters 1 by the ventilation sheet 7, it is possible to construct a plurality of heat insulating members 4 at one time with the ventilation sheets 7 connected. Even if 1 is covered with the ventilation sheet 7, the workability can be improved while ensuring the air permeability through the rafter 1 without impairing the air permeability through the rafter 1.

  Further, by sandwiching the end portion of the heat insulating member 4 between the substrate 8 and the sandwiching piece 9 of the joint member 6, a gap is hardly formed between the joint member 6 and the heat insulating member 4, thereby preventing a decrease in heat insulating properties. It is something that can be done.

  Further, by fixing the joint member 6 to the opposing surface of the adjacent rafters 1, 1, the lower surface of the rafters 1, 1 can be prevented from being blocked by the joint member 6. It is possible to ensure the sex.

  Hereinafter, the best mode for carrying out the present invention will be described.

  FIG. 10 shows an example of a roof framework (shed assembly) 22 according to the present invention. The frame 22 of the roof is the same as the frame of the conventional gable roof, and a plurality of rafters 1, 1... Are inclined between the purlin 10 and the eaves 11. Adjacent rafters 1, 1 are arranged in parallel with each other at a predetermined interval, and a plurality of reinforcing materials (rolling stoppers, etc.) 2 are installed between the adjacent rafters 1, 1. Adjacent reinforcing members 2, 2 are also arranged in parallel to each other at a predetermined interval in the longitudinal direction of the rafter 1. In the figure, reference numeral 12 denotes a ceiling joist, 13 denotes a stopper, and 14 denotes a rafter.

  The heat insulating member 4 is a sheet material having heat insulating properties and flexibility. For example, as shown in FIG. 2, a heat insulating sheet called an air cap or an air cushion (including a plurality of sealed air cells 61 for heat insulation). A plastic air mat) 15 having a heat insulating sheet 16 formed of a metal foil such as an aluminum foil can be used over the entire surface of both sides. The heat insulating sheet 15 and the heat shielding sheet 16 can be polymerized and fixed to each other by sewing or adhesion. The width dimension of the single heat insulating member 4 is formed to be equal to the dimension of the interval between the adjacent rafters 1 and 1 (the dimension between the opposing surfaces of the adjacent rafters 1 and 1). In addition, although the thickness of the heat insulation sheet 15 and the heat insulation sheet 16 can be set suitably, for example, the heat insulation sheet 15 can be 0.5-30 mm, and the heat insulation sheet 16 can be 0.01-0.05 mm.

  As shown in FIG. 3, a plurality of the heat insulating members 4 are connected to each other by a ventilation sheet 7, whereby a plurality of heat insulating members 4 and a plurality of ventilation sheets 7 are sequentially connected to each other. Is formed. The ventilation sheet 7 is constructed between the upper surface side end portions of the adjacent heat insulating members 4, and the upper surface side end portion of the heat insulating member 4 and the side edge portion of the ventilation sheet 7 are fixed to each other by sewing or adhesion. Can do. The ventilation sheet 7 can be a sheet (such as a moisture-permeable waterproof sheet or a ventilation waterproof sheet) that allows air or water vapor to pass therethrough but does not allow water to pass. Specifically, for example, trade name of Asahi DuPont Flash Co., Ltd. [DuPont Tyvek 1060B] or a product name [Joets LX] manufactured by Ube Airtight Housing Co., Ltd. can be used.

  The joint member 6 can be formed using the same sheet material as the heat insulating member 4 including the heat insulating sheet 15 and the heat insulating sheet 16. That is, as shown in FIG. 4, a substantially rectangular substrate 8 and a piece plate 18 are formed in plan view using a sheet material similar to that of the heat insulating member 4, and the piece plate 18 is provided on the upper surface of the substrate 8. The joint member 6 can be formed. The piece member 18 is composed of a fixing portion 19 that is smaller than the substrate 8 and has a shape similar to the substrate 8, and a sandwiching piece 9 that extends integrally with the fixing portion 19 along each side of the fixing portion 19. The fixing portion 19 is fixed to the substantially central portion of the upper surface of the substrate 8 by sewing or bonding. Accordingly, the sandwiching piece 9 is formed along the long side of the fixing portion 19 and is substantially parallel to the long side of the substrate 8, and is formed along the short side of the fixing portion 19. There are two sandwiching pieces 9 that are substantially parallel to the short side of each, and each sandwiching piece 9 is formed to be rotatable up and down around its base.

  And when forming the heat insulation structure of the roof of this invention, it carries out as follows. First, as shown in FIG. 5, a joint member 6 is disposed on the lower side of each reinforcing member 2 constructed between adjacent rafters 1 and 1. At this time, when the width dimension of the joint member 6 is larger than the interval between the adjacent rafters 1, 1, the both ends of the joint member 6 are bent upward to form the fixed piece 20. 1. Fix to the opposing surface (side surface) of 1 and 1 with a fixture such as a tucker. Thereby, the lower surface of the rafter 1 can be prevented from being blocked by the joint member 6, and air permeability through the lower surface of the rafter 1 can be ensured. Further, since the joint member 6 is formed in a substantially rectangular shape in plan view, the joint member 6 can be used by changing the direction of the joint member 6 according to the interval between the adjacent rafters 1 and 1. That is, when the interval between the adjacent rafters 1, 1 is relatively wide, the joint member 6 is made parallel to the direction in which the rafters 1, 1 are aligned (the direction perpendicular to the longitudinal direction of the rafter 1) and the longitudinal direction of the joint member 6. Arranged, conversely, when the interval between the adjacent rafters 1 and 1 is relatively narrow, the joint member 6 can be arranged with the direction in which the rafters 1 and 1 are arranged parallel to the short direction of the joint member 6. Thus, even when the intervals between the adjacent rafters 1 and 1 are different, it is possible to cope with one joint member 6 and to prevent an increase in the number of parts. By arranging the joint member 6 so as to straddle the lower side of each reinforcing material 2 in this way, one holding piece 9 is opposed to each holding piece 9 on both sides of the reinforcing material 2. 8 will be located.

  Further, the heat insulation ventilation is performed so that the length of one heat insulating member 4 is equal to the distance between the adjacent reinforcing members 2 and 2 (the size between the opposing surfaces of the adjacent reinforcing members 2 and 2). The sheet 17 is cut and divided into a plurality of pieces. That is, when the reinforcing material 2 does not exist between the adjacent rafters 1, 1, the entire heat insulating member 4 is accommodated over the entire length between the adjacent rafters 1, 1 and the ventilation sheet 7 is placed on the rafter 1. It is possible to construct the heat insulating ventilation sheet 17 by sequentially arranging the heat insulating members 4 from the upper side between the adjacent rafters 1 and 1 by being hooked to the adjacent rafters 1 and 1. When the material 2 is present, the entire heat insulating member 4 cannot be accommodated between the rafters 1 and 1 adjacent to each other when the heat insulating member 4 hits the reinforcing material 2. Therefore, the heat insulating ventilation sheet 17 is cut to a desired length so that the heat insulating member 4 and the ventilation sheet 7 are separated at a position corresponding to the reinforcing material 2.

  Next, the separated heat-insulating air-permeable sheets 17 are arranged on the roof framework 22 one by one. Thereby, each heat insulation member 4 of each heat insulation ventilation sheet 17 is accommodated and arrange | positioned for every space enclosed by the adjacent rafters 1 and 1 and the adjacent reinforcements 2 and 2, and sandwiches the rafter 1. The adjacent heat insulating members 4 and 4 are separated from each other at a position corresponding to the rafter 1. Further, the ventilation sheet 7 of the heat insulation ventilation sheet 17 is hooked so as to reach the upper part of the rafter 1, that is, from one side surface of the rafter 1 to the other side surface through the upper surface. The heat insulating ventilation sheet 17 is disposed on the roof frame 22. Further, the heat insulating ventilation sheet 17 can be attached by fixing the ventilation sheet 7 to the rafter 1 with a fixing tool such as a tucker. In this way, each heat insulating member 4 is held at a substantially intermediate position in the vertical direction in a space surrounded by the adjacent rafters 1 and 1 and the adjacent reinforcing members 2 and 2, and the adjacent heat insulating members 4 and 4 are The rafters 1 are arranged in contact with or in close proximity to both side surfaces of the rafters 1 so as to sandwich the rafters 1 from both sides in the carry direction.

  Next, the end of the heat insulating member 4 is connected to the joint member 6 provided on the lower side of the reinforcing material 2. This connection method can be performed by sandwiching the end of the heat insulating member 4 between the substrate 8 and the sandwiching piece 9. By connecting the end portion of the heat insulating member 4 to the joint member 6 in this way, the heat insulating members 4 and 4 adjacent to each other with the reinforcing member 2 interposed therebetween can be connected by the joint member 6 as shown in FIG. .

  After this, a field board 3 such as plywood is placed on the rafter 1 and the reinforcing material 2 and fixed with a fixture such as a nail. In this way, an air layer 5 is formed between the base plate 3 and the heat insulating member 4. Placement of the field board 3 on the rafter 1 is performed through a ventilation sheet 7. Next, a waterproof sheet 23 such as asphalt roofing is laid on substantially the entire upper surface of the field board 3 and a roof material 24 such as a slate tile is installed on the waterproof sheet 23. In addition, a ventilation ridge 25 is disposed in the ridge portion of the roof above the purlin 10. Thus, the heat insulation structure of the roof of the present invention can be formed.

  In the present invention, as shown in FIG. 7, a roof opening 27 formed by notching the field board 3 and the roofing material 24 is provided in the roof ridge, and the ridge is formed above the roof opening 27. The ventilation building 25 is provided so as to straddle between a pair of sandwiched roof surfaces, and the attic space 28 is ventilated from the roof opening 27 through the ventilation building 25 to the outside. The air layer 5 is formed in the flow direction (inclination direction) of the roof along the rafters 1, the upper end of the air layer 5 communicates with the ventilation building 25, and the lower end of the air layer 5 is the eaves portion. It communicates with the outside.

  And the heat insulation structure of the roof of this invention can shield the radiation heat radiated | emitted from the field board 3 to the ceiling board side with the heat insulation sheet 16 of the upper side of the heat insulation member 4, and from the field board 3 side. It is possible to prevent the ceiling panel side from being heated by the radiant heat, and to shield the cold heat radiated from the ceiling panel side to the base plate 3 side by the heat shielding sheet 16 below the heat insulating member 4. Thus, it is possible to prevent the heat from being radiated to the base plate 3 side and the ceiling plate side from becoming hot. Therefore, the heat insulating sheet 15 of the heat insulating member 4 can effectively insulate the base plate 3 side and the ceiling plate side and prevent the heat on the base plate 3 side from being transferred to the ceiling plate side and becoming hot. In addition, heat can be effectively insulated by the air layer 5 between the heat insulating member 4 and the field board 3 so that the heat on the field board 3 side is not transmitted to the ceiling board side. Moreover, since the upper end of the air layer 5 communicates with the ventilation building 25 and the lower end communicates with the outside at the eaves portion, the outside air flows smoothly through the air layer 5 in the flow direction of the roof. The circulation of the outside air in the layer 5 can effectively cool the bottom plate 3 so that heat does not accumulate on the lower surface side.

  Moreover, the base plate 3 and the rafter 1 below the base plate 3 release moisture when the sun hits the roof, or absorb moisture when the sun goes down, and absorb and exhale moisture. 4 is separated between adjacent rafters 1 and 1, and the adjacent heat insulating members 4 and 4 are separated from each other at positions corresponding to the rafters 1. As shown in FIG. 1, the air layer 5 does not become sealed, and moisture passes through the rafter 1 in the direction of the arrow between the front surface side and the back surface side of the heat insulating member 4 (air layer 5 And the attic space 28) below the heat insulating member 4, and therefore the heat insulating member 4 does not prevent the field board 3 and the rafters 1 from sucking and discharging moisture. Moisture is less likely to accumulate on the back surface of the rafters 1 and the field board 3, and the rafters 1 and the field board 3. It is possible to prevent the corrosion in a short period of time.

  Moreover, in order to connect the heat insulation members 4 and 4 adjacent on both sides of the reinforcing material 2 by the joint member 6 having heat insulation properties, the heat insulation members 4 and 4 adjacent to each other at the joint member 6 having heat insulation properties at the location of the reinforcement material 2. Can be made continuous so that the heat insulation at the location of the reinforcing material 2 is not impaired.

An example of embodiment of this invention is shown, (a) (b) is sectional drawing. It is a partial sectional view showing a heat insulation member same as the above. It is general | schematic sectional drawing which shows a heat insulation ventilation sheet same as the above. It is a perspective view which shows a joint member same as the above. It is a partial cross section figure which shows the middle of construction same as the above. It is a partial perspective view which shows the middle of construction same as the above. It is sectional drawing which shows the ridge part same as the above. It is a partial sectional view showing a conventional example. It is a partial sectional view showing other conventional examples. It is a one part perspective view which shows the framework of a roof.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rafter 2 Reinforcement material 3 Base plate 4 Heat insulation member 5 Air layer 6 Joint member 7 Ventilation sheet

Claims (4)

A plurality of rafters arranged via a gap, a plurality of reinforcing members arranged via a gap between adjacent rafters, a field board arranged on the rafter and the reinforcing material, and a field board In the heat insulating structure of the roof comprising a heat insulating member disposed on the back surface side of the base plate at a distance from the field plate and an air layer formed between the field plate and the heat insulating member, the heat insulating members are adjacent to each other. Arranged in each space surrounded by the rafter and the adjacent reinforcing material, the adjacent heat insulating members sandwiching the rafter are separated from each other at a position corresponding to the rafter and the adjacent heat insulating members sandwiching the reinforcing material are The joint members are connected by a heat-insulating joint member, and the joint member is formed by forming a substantially rectangular substrate and a piece plate in plan view and providing a piece plate on the upper surface of the substrate. Characteristic roof insulation structure   The heat insulating structure for a roof according to claim 1, wherein the heat insulating members adjacent to each other with the rafters are connected to each other by a ventilation sheet. The joint member is composed of a substrate and a sandwiching piece formed of a plate for a piece provided on the surface thereof, and the adjacent heat insulating member sandwiching the reinforcing material sandwiches the end between the joint member substrate and the sandwiching piece. The roof heat insulating structure according to claim 1, wherein the roof heat insulating structure is connected to each other.   The heat insulating structure for a roof according to any one of claims 1 to 3, wherein the joint member is fixed to an opposing surface of an adjacent rafter.

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