JP2887184B2 - Roof insulation structure, construction method, and insulation plate receiver used therefor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a roof heat insulating structure particularly suitable for a wooden house, a construction method thereof, and a heat insulating plate receiver used for the same.

[Related Art] Conventionally, in the most common wooden house, heat insulation on the roof side is achieved by laying glass wool or the like under the ceiling.

By the way, in a recent wooden house, an attic is often provided, and in this case, since the ceiling is not present, the above-described heat insulation in the ceiling cannot be performed.

Therefore, after installing the baseboard on the rafter, a waterproof sheet (roofing) and a heat insulating board such as a synthetic resin foam board are sequentially laid, and furthermore, a roof material such as a tile or a roof iron plate is constructed thereon. Insulation is given to the roof itself.

[Problems to be Solved by the Invention] However, the above-mentioned conventional method of imparting heat insulation to a roof has the following problems.

(1) At the time of construction, the construction of the roof plate and the insulation is performed by the carpenter, and the construction of the waterproof sheet and the roofing material is performed by the roofer. Therefore, the construction of the roof is performed in the order of carpenter → roofer → carpenter → roofer. The construction procedure is complicated, and the construction relay between contractors does not work well, and the construction period is likely to be long.

(2) After the heat insulating material is installed, the roof shingle is mounted on the heat insulating material. If the heat insulating plate is a synthetic resin foam plate or the like, there is a possibility that damage such as cracks may occur.

By the way, in order to simultaneously improve the above construction procedure and protect the heat insulating plate, it is conceivable that after installing a heat insulating material between the rafters, the construction will be performed in the order of a base plate, a waterproof sheet, and a roof material.

However, in the construction as described above, it is necessary to attach the base plate in a state where the insulation plate is attached between the rafters, and it is easy to cause an accident of stepping down the insulation plate and falling when installing the base plate, There is a problem in terms of work safety. Also, even if you install an insulation board between rafters,
If the heat insulating plate is directly attached with nails or the like, the attachment tends to be unstable and the workability is poor.

The present invention has been made in view of the above-described conventional problems, and has been made to enable the provision of heat insulation to the roof itself by performing safe and efficient work without riding on the heat insulating material. It is an issue to be solved.

[Means for Solving the Problems] The present invention is broadly classified into (1) receiving end installation type,
(2) It is divided into two types: cover type.

 Hereinafter, the two types will be described separately.

(1) Receiver tip installation type This type will be described with reference to FIGS.

First, in this type of construction method, as described in claim 1, a heat insulating plate receiver 5 having a stopper 4 which is elastically pushed in when pressed from below, After protruding to the side of the rafter 1 and fixing it to the lower part of each rafter 1 and mounting the field board 2 on the rafter 1, the heat insulating plate 3
This is a roof heat insulation construction method in which a roof is inserted by pressing from below the space between the stop portions 4 of the heat insulating plate receivers 5 of the adjacent rafters 1 (see particularly FIG. 3).

In addition, the heat insulating structure of the roof obtained by this construction method is, as described in claim 4, the heat insulating plate receiver 5 having the stopper 4 which is elastically pushed when pressed from below. The stoppers 4 protrude to the side of the rafter 1 and are fixed to the lower part of each rafter 1, and the heat insulating plate 3 is provided between the stoppers 4 of the heat insulating plate receiver 5 fixed to the adjacent rafter 1. (In particular, FIGS. 1 and 2)
See figure).

Further, as described in claim 7, the heat insulating plate receiver 5 used in this construction method, when fixed to the lower part of the rafter 1, is rafter pushed elastically by a pressing force from below. 1 is a heat insulating plate receiver 5 having a stopper 4 protruding to the side (particularly see FIG. 4).

(2) Covering type This type will be described with reference to FIGS. 13 to 16.

First, in this type of construction method, as described in claim 8, the heat insulating plate receiver 5 having the stopper 4 which is elastically pushed when pressed from below, is provided with the stopper 4. After fixing to the upper part of each rafter 1 by protruding to the side of the rafter 1, the field board 2 is attached, and then the heat insulating plate 3 is moved downward between the stoppers 4 of the heat insulating plate receiver 5 of the adjacent rafter 1. Roof insulation installation method (particularly
See Figure 15).

In addition, the heat insulating structure of the roof obtained by this construction method is, as described in claim 11, a heat insulating plate receiver 5 having a stopper 4 that is elastically pushed when pressed from below. The stoppers 4 protrude to the side of the rafters 1 and are fixed to the upper part of each rafter 1, and the heat insulating plate 3 is provided between the stopping parts of the heat insulating plate receiver 5 fixed to the adjacent rafters 1. 4
(See especially FIGS. 13 and 14).

Further, as set forth in claim 14, the heat insulating plate receiver 5 used in this construction method, when fixed to the upper part of the rafter 1, is set so as to be elastically pushed by the pressing force from below. 1 is a heat insulating plate receiver 5 having a stopper 4 projecting to the side (in particular, see FIG. 16).

In the roof structure having no rafter 1, any of the above types can be applied in a state where the rafter 1 is replaced with a main building.

[Operation] (1) Receiver tip installation type In this type, the installation procedure is performed in the order of the installation of the base plate 1 and the insulation board receiver 5, and the installation of the insulation board 3.

Therefore, after the installation of the base plate 2, the installation of the waterproof sheet and the roof material on the base plate 2 and the installation of the heat insulating plate 3 below the base plate 2 can be performed at the same time. That is, after attaching the base plate 2, the work can be performed simultaneously in parallel without adjusting the order of the work of the carpenter and the work of the roofer.

(2) Covering type In the case of this type, the installation procedure is performed in the order of mounting the heat insulating plate receiving device 5, mounting the base plate 2, and mounting the heat insulating plate 3.

Therefore, after the installation of the base plate 2, the installation of the waterproof sheet and the roof material on the base plate 2 and the installation of the heat insulating plate 3 below the base plate 2 can be performed at the same time. That is, after attaching the base plate 2, the work can be performed simultaneously in parallel without adjusting the order of the work of the carpenter and the work of the roofer.

Also, in any of the types, since the heat insulating plate 3 is attached to the lower side of the field board 2, it can be installed without stepping on the heat insulating plate 3 when installing the waterproof sheet and the roof material.
Damage to the heat insulating plate 3 due to stepping can be prevented. In addition, in any type, the mounting of the heat insulating plate 3 becomes easy and reliable by the main heat insulating plate receiver 5 corresponding to each type.

[Embodiment] Hereinafter, each embodiment will be described with reference to the drawings in the order of the above-mentioned receiving end construction type and receiving cover covering type.

(1) Receiver tip installation type In FIGS. 1 and 2, 1 is a rafter, 2 is a field board,
Reference numeral 3 denotes a heat insulating plate, and reference numeral 5 denotes a heat insulating plate holder.

The field board 2 is fixed to the rafter 1 with nails or the like, like a general one.

The heat insulating plate 3 is inserted and mounted between the rafters 1, and the mounting is performed by the heat insulating plate receiver 5.

The heat insulating plate 3 may be, for example, a rock wool or a wood wool plate, but is preferably a synthetic resin foam heat insulating plate because of its high heat insulating property, light weight, and small load at the time of installation.
As the synthetic resin foam heat insulating board, for example, an extruded foamed polystyrene board, a bead foamed polystyrene board, a foamed polyethylene board, a hard foamed polyurethane board, a foamed vinyl chloride board, and the like are used.
An extruded polystyrene plate is preferred because a long-term stable heat insulating effect can be obtained.

As shown in FIGS. 1 and 2, a heat insulating plate receiver 5 is fixed to the lower part of the rafter 1, and the heat insulating plate 3 is engaged between the rafters 1 by a stopper 4 protruding to the side of the rafter 1. Has been stopped. The heat-insulating plate receiver 5 used in this type has its stopper 4
Are elastically pushed when pressed from below.

The heat-insulating plate receiver 5 will be further described. As shown in FIG. 4, the heat-insulating plate receiver 5 is configured such that the upper end portion of the plate piece is curved in an arc shape to form the stop portion 4 and the lower end portion is stopped. Part 4
The fixing portion 6 is bent at a right angle to the concave side of the fixing portion 6, and the fixing portion 6 is further formed with a claw portion 7b facing upward.
In particular, the convex portion of the stopper 4 is elastically pressed by pressing so that the stopper 4 can be flattened.

Returning to FIG. 1 and FIG. 2, the state of attachment of the heat insulating plate 3 by the heat insulating plate receiver 5 will be described.

As shown in the figure, the heat insulating plate receiver 5 is provided with a claw portion of the fixing portion 6.
By driving 7b into the lower surface of the rafter 1, the convex side of the stopper 4 projects between the rafters 1 and is fixed. Insulation plate 3
It has a width substantially equal to the interval between the rafters 1 and is pushed into the space between the stoppers 4 of the heat insulating plate receiver 5 fixed to the adjacent rafters 1.

That is, when the heat insulating plate 3 is pushed into the space between the rafters 1 from below, the arc-shaped stop portion 4 is flattened by being elastically pushed in, and allows the process of the heat insulating plate 3. And the heat insulating plate 3 is locked.

A construction method for obtaining the above-mentioned roof insulation structure will be described with reference to FIG.

First, as shown in FIG.
Is fixed. The fixing of the base plate 2 is performed by nailing or the like as usual.

Next, as shown in (b), at least the heat insulating plate receiver 5 is fixed to the rafters 1 on both sides of the position where the heat insulating plate 3 is to be inserted. The fixing of the heat insulating plate holder 5 is as follows.
This can be performed by driving the claw portion 7b into the lower surface of the rafter 1.

After fixing the heat insulating plate receiver 5, the heat insulating plate 3 is pushed between the rafters 1 from below, as shown in FIG. Especially the first
The mounting state of the heat insulating plate 3 shown in the figure
The heat insulating plate 3 can be obtained by pushing the heat insulating plate 3 to a position above the stop portion 4 and locking the heat insulating plate 3 to the stop portion 4 that has elastically returned.

Note that the claw portion 7b on the fixing portion 6 side of the heat insulating plate receiver 5 is omitted,
It is also possible to fix the heat insulating plate receiver 5 by nailing or the like to the lower surface of the rafter 1.

FIGS. 5, 7, and 9 to 12 show other examples of the heat insulating plate receiver 5 suitable for this type of construction.

In FIG. 5, the height is higher than that in FIG.

In the case of the heat insulating plate receiver 5, as shown in FIG.
The stopper 4 is positioned above the rafter 1, and the heat insulating plate 3 pushed between the rafters 1 can be attached by being clamped using the elastic return force of the stopper 4.

Further, the claw portion 7b of the heat insulating plate receiver can be omitted as in the case of FIG.

In FIG. 7, the end of the stopper 4 described in FIG. 4 is bent at a right angle to the convex side of the stopper 4 to form the abutting portion 10.

In the case of this heat insulating plate receiver 5, as shown in FIG.
The heat insulating plate 3 is pushed between the rafters 1 until it comes into contact with the abutting portion 10, and the elastic return force is used between the stoppers 4 with the gap 9 opened between the heat insulating plate 3 and the base plate 2. Then, the heat insulating plate 3 can be held and attached. Butt 10
Is to prevent the heat insulating plate 3 from being pushed too much and coming off the stopper 4 when the heat insulating plate 3 is pushed.

Also in the case of the heat insulating plate receiver 5, the claw portion 7b can be omitted as in the case of FIGS. 4 and 5.

In FIG. 9, the fixing part 6 of FIG. 4 is omitted,
Instead, a claw 7b projecting toward the concave side of the stopper 4 is formed.

In the case of the heat insulating plate receiver 5, the claw portion 7 b is fixed by hitting the lower side of the rafter 1.

In this case, the nail portion 7b can be omitted by fixing the heat insulating plate receiver 5 by nailing or the like to the side surface of the rafter 1.

In FIG. 10, the stoppers 4 are formed by bending the distal ends of the arms 8 of the upwardly U-shaped plate piece into an outwardly convex arc.

In the case of the heat insulating plate receiver 5, the lower part of the rafter 1 is sandwiched between both arms 8 and fixed by nailing or the like to the lower surface of the rafter 1. 4 can be located.

In FIG. 11, a claw 7b is formed on the upper surface of the bottom of FIG. 10, and this claw can be fixed by driving the claw into the lower surface of the rafter 1.

In FIG. 12, the arm 8 of the upward U-shaped plate is slightly extended outward and its tip is bent toward the striking side to form the stopper 4.

In the case of the heat insulating plate receiver 5, the fixing itself is performed in the same manner as that of FIG. 10, but when the heat insulating plate 3 is pushed in, the stopper 4 spreading outwardly falls down and elastically. It can be pushed.

Also, in the case of the heat insulating plate receiver 5, a claw portion 7b similar to that shown in FIG. 11 can be provided.

(2) Covering type As shown in FIG. 13 and FIG. 14, the heat insulating plate receiver 5 is fixed to the rafter 1 and between the rafters 1 by the stoppers 4 protruding to the side of the rafter 1. The fact that the heat insulating plate 3 is locked and the stopper 4 of the heat insulating plate receiver 5 is elastically pushed when pressed from below has been described with reference to FIGS. 1 and 2. Same as the one. However, this type differs from those of FIGS. 1 and 2 in that the heat insulating plate receiver 5 is fixed to the upper part of the rafter 1.

Further, the heat insulating plate receiver 5 will be described. As shown in FIG. 16, the heat insulating plate receiver 5 is formed by bending the lower end portions of the both arm portions 8 of the downwardly U-shaped plate pieces outwardly in an arc shape. And turned back to form a stopper 4. The stopper 4 has a convex shape on the outside, and the convex surface is elastically pushed in by pressing and can be flattened.

Returning to FIG. 13 and FIG. 14, the mounting state of the heat insulating plate 3 by the heat insulating plate receiver 5 will be described.

As shown in the figure, the heat insulating plate receiver 5 is fixed by sandwiching the upper part of the rafter 1 between both arms 8 so that the convex side of the stopper 4 projects between the rafters 1. Is ripped from the heat insulating plate receiver 5 to the rafter 1. Insulation board 3
Has a width substantially equal to the interval between the rafters 1, and is pushed through between the stoppers 4 of the heat insulating plate receiver 5 fixed to the adjacent rafters 1.

That is, when the heat insulating plate 3 is pushed into the space between the rafters 1 from below, the arc-shaped stoppers 4 are flattened by being elastically pushed in and allow the heat insulating plate 3 to pass therethrough. And the heat insulating plate 3 is locked.

A construction method for obtaining the above-mentioned roof insulation structure will be described with reference to FIG.

First, as shown in (a), the heat insulating plate receiver 5 is fixed on the rafter 1 so as to cover it. This insulation plate holder 5
Are fixed to the upper surface of the rafter 1 by nailing or the like.

Next, as shown in (b), the field board 2 is fixed to the rafter 1 by nailing or the like from above the heat insulating board receiver 5.

After attaching the heat insulating plate receiver 5 and the base plate 2, (c)
As shown in the figure, the heat insulating plate 3 is pushed between the rafters 1 from below. In particular, when the heat insulating plate 3 is attached as shown in FIG. 13, the heat insulating plate 3 is pushed up to above the stop portion 4 of the heat insulating plate receiver 5, and the heat insulating plate 3 is locked to the elastically restored stop portion 4. Can be obtained by:

FIG. 17, FIG. 19, and FIG. 21 to FIG. 24 each show another embodiment of the heat insulating plate receiver 5 suitable for this type of construction.

In FIG. 17, the height is made lower than that in FIG. 16, and the stopper 4 is provided with a claw 7a that projects upward and outward.

In the case of this heat insulating plate receiver 5, as shown in FIG.
The stopper 4 is positioned above the rafter 1, and the heat insulating plate 3 pushed between the rafters 1 is clamped by using the elastic return force of the stopper 4, and the lower surface of the heat insulating plate 3 is held by the claw 7 a. It can be pierced and attached.

In FIG. 19, the tip of the stopper 4 of FIG. 16 is bent toward the convex side of the stopper 4 to form the abutting portion 10.

In the case of this heat insulating plate receiver 5, as shown in FIG.
The heat insulating plate 3 is pushed between the rafters 1 until it comes into contact with the abutting portion 10, and the elastic return force is used between the stoppers 4 with the gap 9 opened between the heat insulating plate 3 and the base plate 2. Then, the heat insulating plate 3 can be held and attached. Butt 10
Is to prevent the heat insulating plate 3 from being pushed too much and coming off the stopper 4 when the heat insulating plate 3 is pushed.

In FIG. 21, the claw portion 7b is formed downward on the upper and lower surface of the structure described in FIG.

In the case of the heat-insulating plate receiver 5, the fixing work can be performed only by hitting the claw 7b on the upper surface of the rafter 1 when fixing the rafter 1 on the rafter 1, and the labor for preparing nails or the like can be omitted.

Note that the same claw portion 7b provided on the heat insulating plate receiver 5 may be provided on the heat insulating plate receiver 5 described with reference to FIGS. 15, 16, and 18.

The one in FIG. 22 is similar to the one in FIG. 16 cut into right and left parts, so that the upper end of the plate piece is bent at about a right angle to form the fixing part 6, and the fixing part 6 is clawed downward. The stopper 7 is formed by forming a portion 7 b and bending the lower end of the plate piece in an arc shape to the opposite side to the fixing portion 6 and folding it back.

In the case of this heat insulating plate receiver 5, the stopper 4 is directed outward,
It is fixed by driving the claw 7b of the fixing part 6 into the upper surface of the rafter 1.

23 omits the fixing part 6 of FIG. 22,
Instead, a claw portion 7b is formed laterally.

In the case of this heat insulating plate receiver 5, a claw portion is provided on the upper side surface of the rafter 1.
It is fixed by driving 7b.

It is also possible to omit the claw portion 7b provided on the heat insulating plate receiving member 5 and the heat insulating plate receiving member 5 in FIG. 22, and fix the rafter 1 by nailing on the side surface or the upper surface thereof. it can.

In FIG. 24, the lower end portions of both arm portions 8 of the upwardly facing U-shaped plate piece are bent upward at an acute angle, and the front end portions thereof are bent inward to form the stopper portions 4.

In the case of the heat insulating plate receiver 5, the fixing itself is performed in the same manner as that of FIG. 16, but when the heat insulating plate 3 is pushed in, the outwardly expanding stopper portion 4 falls down and elastically. Is to be pushed into

Also, in the case of the heat insulating plate receiver 5, a claw portion 7b similar to that shown in FIG. 21 can be provided.

[Effects of the Invention] The present invention is as described above, and has the following effects.

(1) In any of the types, after the construction of the base plate 2,
Since the heat insulating plate 3 is attached from below, the installation of the waterproof sheet and the roofing material can be performed at the same time as the mounting of the heat insulating plate 3, and the work can be efficiently performed without complicating the work procedure between the traders. You can proceed.

(2) Since the heat insulating plate 3 is attached to the lower side of the base plate 2, the heat insulating plate 3 is not trampled during construction of the waterproof sheet or the roof material, and damage to the heat insulating plate 3 due to stomping is prevented. The heat insulation effect can be reliably obtained.

(3) Since the field board 2 is attached prior to the installation of the heat insulating plate 3 in any of the types, there is a danger that the heat insulating board 3 will be stepped on and fall down as in the case where the field board 2 is mounted after the heat insulating plate 3 is mounted. Absent.

(4) The heat-insulating-plate receiver 5 used for any type can obtain a more secure mounting state than the case where the heat-insulating plate 3 is directly mounted with a nail or the like, and has good workability.

In the drawings, for convenience of explanation, the rafter 1 and the heat insulating plate 3
It is drawn as if there is a gap between the end of
It is needless to say that such a gap should be as narrow as possible in order to sufficiently exhibit the heat insulating effect.

[Brief description of the drawings]

1 and 2 are views showing an embodiment of a roof heat insulating structure according to a receiver tip construction type of the present invention, and FIGS. 3 (a) to 3 (c).
Is an explanatory view of the construction procedure, FIG. 4 is a view showing an embodiment of a heat insulating plate receiver used in the embodiment, FIG. 5, FIG. 7, FIG.
10, 11 and 12 each show another embodiment of the heat-insulating plate receiver used for the receiver tip installation type, and FIG. 6 shows the use state of the heat-insulating plate receiver of FIG. 5. FIG. 8, FIG. 8 is a view showing a use state of the heat insulating plate receiver of FIG. 7, FIG. 13 and FIG. 14 are views showing an embodiment of a roof heat insulating structure according to the present invention. (A)-(c) is an explanatory view of the construction procedure,
FIG. 16, FIG. 17, FIG. 19, FIG. 21, FIG. 22 to FIG. 24 each show another embodiment of the heat insulating plate receiver used for the cover type, and FIG. FIG. 20 is a view showing a use state of the heat insulating plate receiver of FIG. 20, and FIG. 20 is a view showing a use state of the heat insulating plate receiver of FIG. 1: Rafter, 2: Field board, 3: Insulation board, 4: Stopper, 5: Insulation board holder, 6: Fixed part, 7a, 7b: Claw, 8: Arm, 9: Void, 10: Thrust Patch.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tomofumi Haneda 1-6-12 Toranomon, Minato-ku, Tokyo Dow Chemical Co., Ltd. (72) Inventor Masaru Otsuki 1-6-12 Toranomon, Minato-ku, Tokyo Dow Chemical (72) Inventor Masahiko Sunagawa Inside Yamauchi Design Office, 2-15-4 Akasaka, Minato-ku, Tokyo

Claims (15)

(57) [Claims] An insulated board receiver having a stopper which is elastically pushed when pressed from below is fixed to the lower part of each rafter by projecting the stopper to the side of the rafter and is fixed on the rafter. A roof heat insulation construction method, wherein after attaching a base plate, a heat insulating plate is pushed in from below to attach between adjacent stopper portions of a rafter insulating plate holder. 2. The heat insulating plate is attached by pushing the heat insulating plate above the stop portion of the heat insulating plate receiver fixed to the adjacent rafter, and locking it on the returned stop portion. 2. The method of claim 1, wherein the heat insulation is performed. 3. The heat-insulating plate is attached by pushing the heat-insulating plate to a position where the stop portion of the heat-insulating plate receiver fixed to adjacent rafters is elastically pushed in, and being held by the restoring force of the stop portion. 2. The method according to claim 1, wherein the thermal insulation is applied to the roof. 4. A heat insulating plate receiver having a stop portion which is elastically pushed in when pressed from below is fixed to the lower part of each rafter by projecting the stop portion to the side of the rafter. A roof heat-insulating structure characterized in that the boards are supported between stops of heat-insulating board supports fixed to adjacent rafters. 5. The mounting of the heat insulating plate by pushing the heat insulating plate above the stop portion of the heat insulating plate receiver fixed to the adjacent rafter, and locking the heat insulating plate on the returned stop portion. The roof insulation structure according to claim 4, characterized in that: 6. The heat-insulating plate is attached by pushing the heat-insulating plate to a position where the stop portion of the heat-insulating plate receiver fixed to the adjacent rafter is pushed in elastically, and being held by the restoring force of the stop portion. The roof insulation structure according to claim 4, wherein the roof insulation structure is provided. 7. A heat-insulating plate receiving member having a stopper which projects to the side of a rafter while being elastically pushed by a pressing force from below when fixed to a lower portion of the rafter. 8. A heat-insulating plate receiver having a stopper which is elastically pushed in when pressed from below. The stopper is projected to the side of the rafter and is fixed to the upper part of each rafter, and then the base plate is removed. A method for performing roof insulation work, comprising: mounting the heat insulating plate, and then inserting the heat insulating plate from below into a space between the stoppers of the heat insulating plate receiving members of the adjacent rafters. 9. The heat insulating plate is attached by pushing the heat insulating plate above the stop portion of the heat insulating plate receiver fixed to the adjacent rafter and locking it on the returned stop portion. 9. The method according to claim 8, wherein 10. The heat-insulating plate is attached by pushing the heat-insulating plate to the position where the stop portion of the heat-insulating plate receiver fixed to the adjacent rafter is pushed in elastically, and sandwiched by the return force of the stop portion. 9. The method according to claim 8, wherein: 11. A heat insulating plate receiver having a stop portion which is elastically pushed in when pressed from below, is fixed to an upper part of each rafter by projecting the stop portion to the side of the rafter. A roof heat-insulating structure, characterized in that the boards are supported between stops of heat-insulating board receivers fixed to adjacent rafters. 12. The heat insulating plate is attached by pushing the heat insulating plate above the stop portion of the heat insulating plate receiver fixed to the adjacent rafter and locking it on the returned stop portion. 12. The roof heat insulating structure according to claim 11, wherein: 13. The heat-insulating plate is attached by pushing the heat-insulating plate to a position where the stop portion of the heat-insulating plate receiver fixed to the adjacent rafter is pushed in elastically, and being held by the return force of the stop portion. Claim 11 characterized by the following facts:
Term roof insulation structure. 14. A heat insulating plate receiving member having a stop portion which, when fixed to the upper part of a rafter, protrudes to the side of the rafter while being elastically pushed by a pressing force from below. 15. The method of claim 1, wherein the rafter is replaced with a purlin in the roof structure having no rafter.