JP3419479B2 - Insulation board fixing structure on the roof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof heat insulating plate fixing structure in which a roof heat insulating plate placed on a roof base is fixed to the roof base with screws.

[0002]

2. Description of the Related Art Conventionally, as a structure for fixing a heat insulating plate in a roof of this type, a head for expanding the diameter of a screw having a tip portion penetrating from a roof surface side to a heat insulating plate for a roof placed on a roof substrate, The heat insulating plate was fixed to the roof substrate while being in contact with the roof surface of the heat insulating plate.

[0003]

According to the conventional heat insulating plate fixing structure for a roof described above, since the diameter-expanding head of the screw is located on the roof surface, for example, sunlight irradiation is performed. In response to this, when the roof surface becomes hot, there is a risk that the heat will propagate from the expanded head of the screw to the roof substrate side via the screw shaft, and when the outside air temperature is low, There is a risk that the heat in the building will leak to the outside through the screws, and the heat insulation performance of the roof will deteriorate.

Therefore, in view of the above drawbacks, an object of the present invention is to provide a heat insulating plate fixing structure for a roof having high heat insulating performance.

[0005]

In order to achieve this object, a characteristic structure of a heat insulating plate fixing structure for a roof according to the present invention is that the structure is fixed to the roof base by screws while being placed on the roof base. A screw hole is provided in the heat insulating plate from the roof surface side of the roof heat insulating plate to the roof substrate, and a holding plate for pressing the heat insulating plate to the roof substrate side is arranged on the roof surface of the heat insulating plate. The base end is provided with a locking part having a continuous peripheral part for locking the pressing plate only by contacting the upper surface of the locked part with the pressing plate and pulling it toward the roof substrate side, and the entry of the screw With this, a counterbore for receiving the expanded head of the screw is provided on the tip side, and
The tightening contacting force from the expanding head in the state where the counterbore part receives the expanding head is transmitted from the locking part to the locked part of the holding plate, and the expanding head And a roof surface are provided with a low thermal conductivity connecting member for forming a space in a screw hole portion between the roof surface and the roof surface to seal the space, and the roof surface is provided with the heat insulation. The waterproof member is provided in close contact with the plate, the connecting member, and the holding plate.

A heat insulating material may be loaded in the space.

Further, the more the amount of deformation of the insulating plate, as the distance between the roof bed with a distal end portion of the connecting member is large to deform in the thickness direction due to a load from the outside of the waterproof member, or each other by setting the length of the connecting member, or, the amount of deformation of the insulating plate to be deformed in a thickness direction due to a load from the outside of the front Kibo water members, the roof bed with a distal end portion of the connecting member The heat insulating plate may be formed so as to be smaller than the distance between the heat insulating plate and the heat insulating plate.

[0008]

According to the characteristic structure of the heat insulating plate fixing structure for the roof according to the present invention, the connecting member is inserted into the screw hole provided in the roof heat insulating plate placed on the roof substrate, and the tip side of the connecting member is inserted. In the state in which the roof heat insulating plate is fixed to the roof substrate by the screw whose expanded head is received by the counterbore part of the, a space sealed between the expanded screw head and the roof surface is provided. Since it is formed, this space acts as a heat insulating layer, and it becomes possible to make it difficult to transfer heat between the front and back of the roof via the screws. For example, the fixing force of the heat insulating plate is high, but the heat insulating property is poor. Even when a metal screw is used as a screw for fixing the heat insulating plate, heat from the roof surface is rarely transmitted to the roof base material through the screw, and heat conduction in the opposite direction is unlikely to occur. Form a high heat insulation plate fixing structure Theft is possible. In addition, a pressing plate for pressing the heat insulating plate toward the roof substrate side is arranged on the roof surface of the heat insulating plate, and the pressing plate is engaged only by abutting the pressing plate to the upper surface of the locked portion. The enlarged diameter head provided with a locking portion having a continuous peripheral portion for stopping and pulling toward the roof substrate side at the base end portion and the spot facing portion at the tip end side, and received by the spot facing portion. Since a connecting member with low thermal conductivity for transmitting the contacting force from the locking part to the locked part of the pressing plate is provided in the screw hole, tightening the screw The force can be applied to a wide range of the heat insulating plate through the connecting member and the holding plate, and the damage of the heat insulating plate due to the action of the local tightening force can be prevented. It can be fixed on the roof base. Moreover, since the connecting member has low thermal conductivity, it is difficult for heat of the roof surface to be transferred from the connecting member to the roof substrate through the screws, and it is possible to prevent the heat insulating effect from being impaired.
Further, the heat insulating plate, the connecting member, and the holding plate are closely covered with a waterproof member.

If a heat insulating material is loaded in the space, it becomes possible to prevent dew condensation in the space.

[0010]

Furthermore, the distance between the tip of the connecting member and the roof substrate is determined by the amount of deformation of the heat insulating plate that deforms in the thickness direction due to the load from the outside of the waterproof member provided to cover the roof surface. The length of the connecting member is set such that the heat insulating plate is deformed in the thickness direction by the load from the outside of the waterproof member provided so as to cover the roof surface. If the heat insulating plate is formed so that the amount thereof is smaller than the distance between the tip of the connecting member and the roof substrate, a local load such as walking acts on the roof surface. In this case, with the deformation of the heat insulating plate in the thickness direction, the connecting member can be sunk in a state of not abutting on the roof substrate and following the heat insulating plate, and the waterproof member from below. Push it up to damage It is possible to prevent.

[0012]

Therefore, according to the heat insulating plate fixing structure for a roof of the present invention, it is possible to form a roof in a state where the heat insulating performance of the heat insulating plate is fully utilized, and it is possible to form dew on the roof base in winter. It is now possible to improve the prevention of air conditioning and the air conditioning efficiency of the building.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a roof portion formed by attaching and fixing a heat insulating plate 1 to a roof base 3 with metal screws 2.

The roof base 3 is formed of a metal base such as a deck plate or a keystone plate, and as another structure, it may be formed of a H-shaped, I-shaped or C-shaped steel member. .

The heat insulating plate 1 placed on the roof base 3 is made of urethane foam (otherwise, it may be a foamed molded product such as polystyrene, polypropylene or polyethylene, and its hardness can be freely set). A screw hole H for passing the screw 2 is provided from the side to the roof substrate 3.

At the periphery of the screw hole H on the roof surface F side of the heat insulating plate 1, a disc-shaped metal holding plate 4 for pressing the heat insulating plate 1 toward the roof substrate 3 side is arranged. Presser plate 4
An insertion hole 4a for inserting the screw 2 is formed in a central portion of the screw hole, and a peripheral portion of the insertion hole 4a is a locked portion for locking a locking portion 5a of a connecting member 5 described later. 4b is provided.

Explaining the connecting member 5, a continuous circumference for locking the pressing plate 4 only by contacting the upper surface of the locked portion 4b of the pressing plate 4 and pulling it toward the roof substrate 3 side. And a seat for receiving the enlarged diameter head 2a of the screw 2 in the screw hole H as the screw 2 enters the screw hole H. A boring portion 6 is provided on the tip side, and a tubular connecting main body portion 5b that connects the locking portion 5a and the spot facing portion 6 is provided. The connecting main body portion 5b and the spot facing portion 6 are provided in the screw hole H. It is formed so that it can be inserted inside. Therefore, the tightening abutment force from the screw 2 expanding head 2a received by the counterbore 6 in the screw hole H is transmitted from the locking portion 5a to the heat insulating plate 1 via the pressing plate 4. It is possible. The connecting member 5 is formed of a material having low thermal conductivity such as nylon, polyethylene, or polypropylene.

Further, the connecting member 5 is deformed in the thickness direction by the load acting on the roof surface F, and the tip portion of the connecting member 5 and the roof base 3 are determined by the amount of deformation of the heat insulating plate 1.
The length L is set so that the separation distance between and becomes large, and the tip end portion is shaped like a cone. In this way, by forming the tip end portion in a cone shape, the insertion of the connecting member 5 into the screw hole H is made smooth, and at the same time, the penetration resistance of the tip end is reduced when the heat insulating plate 1 is deformed in the thickness direction. .

Further, in the figure, 7 is a lid capable of sealing the inner space of the connecting main body 5b, and 8 is the screw 2 diameter expanding head 2a.
Is a space provided between the roof surface F and the roof surface F.

On the other hand, on the roof surface F, a waterproof sheet which is an example of a waterproof member for roof waterproofing in a state of covering the heat insulating plate 1, the connecting member 5 and the holding plate 4 which are fixed on the roof base material 3. 9 is provided in close contact. The adhesion between the waterproof sheet 9 and the pressing plate 4 and the adhesion between the pressing plate 4 and the heat insulating plate 1 can be performed by applying an adhesive to the adhesive surface, or by hot-melting the pressing plate 4 in advance. It is also possible to apply a method in which the hot melt is melted and adhered by heating the pressing plate 4 by electromagnetic induction after the waterproof sheet 9 is installed and the waterproof sheet 9 is installed.

According to the heat insulating plate fixing structure for the roof of this embodiment, the amount of heat received on the roof surface F is reduced by the waterproof sheet 9.
Insulating the space 8 between the screw 2 and the screw 2 makes it difficult for the screw 2 to be transmitted to the roof substrate 3, and at the same time, the load acts on the roof surface F to cause the heat insulating plate 1 to move in the thickness direction. Even if it deforms, the surface of the heat insulating plate 1 sinks in a state where the surface of the connecting member 5 also follows so that it is possible to prevent the waterproof sheet 9 from being pushed up and damaged.

[Other Embodiment] Another embodiment will be described below.

[0024] <1> insulation board fixing structure in the roof of the present invention is not limited to those described in the previous embodiment, prior Symbol closed space 8, for example, resin foam or rock wool If the heat insulating material is loaded, it becomes possible to prevent dew condensation in the space 8.

<2> The shape of the connecting member 5 is not limited to the one described in the previous embodiment, and for example, as shown in FIG. It may be formed, and the locking portion 5
A forms a a and coupling body portion 5b and the counter bore 6 each separately or partially separately but it may also. In that case, since it can be formed of a material having different characteristics depending on the part of the connecting member, it can be made more functional. Further, the pressing plate 4 is not limited to a disc shape, and for example, if it is formed in a band plate shape having a plurality of insertion holes 4a, the pressing area against the heat insulating plate 1 is widened,
It is possible to fix the heat insulating plate 1 without difficulty.

<3> The waterproof member 9 is not limited to the sheet-like member described in the previous embodiment, and further,
A sheet-like waterproof member may be brought into close contact with the heat insulating plate 1 in advance, or a waterproof member may be formed by applying a liquid waterproof material. In that case, the heat insulating plate 1 may be used.
After attaching and fixing the sheet to the roof substrate 3, a similar waterproof effect can be obtained by additionally attaching a waterproof sheet from above the roof to cover the pressing plate 4 or applying a waterproof material, and at the same time, the heat insulating plate can be obtained. It is possible to shorten the process of fixing work.

<4> The screw hole H may be formed in advance on the heat insulating plate 1 or may be formed by drilling at the site, so that the heat insulating plate 1 can be fixed according to the situation at the site. Become. At this time, the connecting member 5 is attached to the heat insulating plate 1.
If the connecting member 5 is formed into the heat insulating plate 1, the screw hole H can be formed and the connecting member 5 can be installed at the same time, so that the work efficiency can be improved.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an example of a heat insulating plate fixing structure on a roof.

FIG. 2 is a perspective view showing a connecting member of another embodiment.

[Explanation of symbols]

1 Heat Insulation Plate 2 Screw 2a Expanding Head 3 Roof Base 4 Presser Plate 4b Locked Part 5 Connecting Member 5a Locking Part 6 Counterbore 8 Space 9 Waterproofing Member F Roof Surface H Screw Hole L (of Connecting Member) Length It

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Claims (4)

(57) [Claims] 1. A structure for fixing a heat insulating plate in a roof, wherein a roof heat insulating plate (1) placed on a roof base (3) is fixed to the roof base (3) by screws (2). A screw hole (H) is provided in the heat insulating plate (1) from the roof surface (F) side of the heat insulating plate (1) to the roof base (3), and the heat insulating plate (1) is provided on the roof base (3). A pressing plate (4) for pressing to the side is arranged on the roof surface (F) of the heat insulating plate (1), and a locked portion (4) of the pressing plate (4) is arranged.
b) A locking portion (5a) having a continuous peripheral portion for locking the pressing plate (4) and pulling it toward the roof substrate (3) side only by abutting on the upper surface is provided at the base end, As the screw (2) enters, the expanded head (2) of the screw (2)
a) A counterbore (6) for receiving the a) is provided on the tip side, and the diameter-enlarged head (2a) is formed by the counterbore (6).
The tightening abutting force from the enlarged diameter head (2a) in the state of being received is transmitted from the locking portion (5a) to the locked portion (4b) of the pressing plate (4) and the diameter thereof is expanded. A state in which a connecting member (5) having low heat conductivity for forming a space (8) in a screw hole portion between the head (2a) and the roof surface (F) is inserted in the screw hole (H). And the space (8) is sealed, and the roof surface (F) covers the heat insulating plate (1), the connecting member (5), and the holding plate (4), and the waterproof member (9). A structure that fixes the heat insulation plate on the roof where the are closely attached. 2. The heat insulating plate fixing structure for a roof according to claim 1, wherein a heat insulating material is loaded in the space (8). 3. The tip of the connecting member (5) and the roof substrate (3) are determined from the deformation amount of the heat insulating plate (1) which is deformed in the thickness direction by the load from the outside of the waterproof member (9).
The heat insulating plate fixing structure for a roof according to claim 1 or 2, wherein a length (L) of the connecting member (5) is set so that a distance between the connecting member and the connecting member is large. 4. The amount of deformation of the heat insulating plate (1), which deforms in the thickness direction due to the load from the outside of the waterproof member (9), is such that the tip end of the connecting member (5) and the roof substrate (3).
The heat insulating plate fixing structure for a roof according to claim 1 or 2, wherein the heat insulating plate (1) is formed so as to have a distance smaller than a distance between and.