JP2001116271A - Method for laying planar heater for floor heating and floor heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for laying a planar heater for floor heating without causing any warp or crack on the surface of a floor plate even if a level difference causing a trouble in daily life is present, and a floor heating system. SOLUTION: In the method for laying a planar heater for floor heating, upper surface of a floor plate 10 in an existing room is applied with painting 20 having high thermal durability and a planar heater 40 for floor heating is applied to the lower surface of the floor plate 10 and secured in place. Since thermal durability of an existing floor plate is enhanced by applying painting 20 having high thermal durability, the floor plate can be protected against warp, crack or gap due to heat of the heater. The method can be effected easily without requiring a large scale work. Painting causes no variation in the height from the floor surface and a person can live with no strange feeling after installation work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for laying a planar heating element such as a floor heating hot water mat on an existing floor. In particular, the present invention relates to a method for laying a planar heating element for floor heating and a floor heating apparatus capable of providing an existing floor plate of a living room with sufficient thermal durability without increasing the floor height.

[0002]

2. Description of the Related Art A description will be given by taking a hot water circulation type floor heating as an example. As a method of installing hot water floor heating without removing the existing floor panel, there are an above-floor installation type and an under-floor installation type.

FIG. 2 is a sectional view showing an example of an installation state of a floor installation type. The flooring 60 is a wooden flooring having a predetermined length and width and a thickness of 12 to 15 mm. Floor material 60
A hot water pipe groove 61 is formed on the lower surface of the, and a hot water pipe 63 is fitted therein. The depth of the groove 61 is the floor material 60
Reaches 4.8 mm from the upper surface of. An aluminum sheet 65 is attached to the lower surface of the floor material 60 and a part of the inner surface of the groove 61. The aluminum sheet 65 widely transmits the heat of the hot water pipe 63 to the surface of the floor material 60. On the existing floor plate 10, a heat insulating sheet 67 (foam material) having a thickness of 3 mm is installed.
The floor material 60 is installed on the heat insulating sheet. This can prevent or suppress the heat of the hot water pipe 63 from escaping below the floor. Therefore, the heating effect is promoted.

FIG. 3 is a view showing an example of the structure of a hot water mat used for a floor-installed type, (A) is a plan view,
(B) is a side view, (C) is a bottom view, and (D) is a view of the DD cross section in (A). The hot water mat 40 includes a mat plate 41, a hot water pipe 43, a heat transfer sheet 45, and the like.

[0005] The mat plate 41 is made of a lightweight heat insulating material such as foamed polyethylene. The dimensions of the mat board 41 are of a retrofit type installed on an existing floor. In the case of a conventional wooden construction, the width is about 255 mm, the length is about 900 mm, and the thickness is 40 mm.
mm. It should be noted that the size is adapted to the width of the joist, and when the joist width is large, the size also increases. On the upper surface of the mat plate 41, a hot water pipe groove is formed so as to meander, and a hot water pipe 43 is fitted therein. The hot water pipe 43 is made of a flexible material such as cross-linked polyethylene, and warm water of about 60 ° C. flows in the pipe at a steady state. On the upper surface of the mat plate 41 and the hot water pipe 43,
A heat transfer sheet 45 made of aluminum foil is stuck. The heat transfer sheet 45 uniformly transmits the heat released from the hot water pipe 43 to the upper surface of the mat plate 41, and can evenly heat the floor surface.

[0006] A plurality of mat boards 41 are laid according to the area of the floor on which floor heating is installed. The ends of the hot water pipes 43 of the adjacent mat plates 41 are connected to each other,
Hot water pipe 43 communicates.

FIG. 4 is a view showing a structure of a joint of a hot water pipe. Both ends of the hot water pipe 43 are bellows-like pipes 43a having flexibility so that the connecting operation is easy. The bellows-like pipe 43a extends out from the lower surface of the mat plate 41. The length of the bellows-like pipe 43a is about 15 cm. The part that has come out of this is a concave portion 47 on the side surface of the mat plate 41.
It is stored in. Male joint 4 at one end of each exposed part
9a, the other is provided with a female joint 49b. At the tip of the male joint 49a, two annular grooves are cut,
An O-ring 51 is fitted. A flange 53 and a hook 55 are further formed at the tip. Male fitting 49
When a is inserted into the female joint 49b, the female joint 49b is fixed by friction with the O-ring 51, the flange 53 abuts on the tip of the female joint 49b, and the hook 55 sandwiches and fixes the female joint 49b.

Next, a method of installing the underwater floor-type warm water mat 40 will be described. FIG. 5 is a diagram illustrating an example of a floor structure on which the hot water mat of FIG. 3 is installed. FIG.
It is a perspective view which shows the lower surface of the floor after a warm water mat installation. In this example, a hot water mat is applied from below the floor to the lower surface of the floorboard to be laid out from below the floor. The floorboard 10 is supported by generally parallel timbers, generally referred to as pullouts 71. The pulling bar 71 is usually a 105 mm square bar, and is supported in some places by a bundle 73. The pitch between the adjacent guides 71 is about 910 mm. The joists 75 are arranged on the large-diameter 71 substantially orthogonal to the large-diameter 71. The joist 75 is usually a square piece having a width of 40 mm and a height of 45 mm. Neighboring joists 75
The spacing between them is usually about 303 mm. A floor board 10 such as a flooring is stuck on the joist 75.

The hot water mat 40 is disposed between the adjacent joists 75 such that the upper surface is at the same height position as the upper surface of the joists 75. At this time, the male joint of a certain warm water mat 40 is arranged so as to line up with the female joint of an adjacent warm water mat 40. At this time, the end of the hot water mat 40 is inserted into the large pull 71 and temporarily placed. In this state, as shown in FIG. 6, a mat fixing plate 77 (described in detail later) is pressed against the back surface of the hot water mat 40 so as to be perpendicular to the joist 75 and fixed to the joist 75.

FIGS. 7A and 7B are views showing the structure of the mat fixing plate, wherein FIG. 7A is a plan view, FIG. 7B is a side view, and FIG. 7C is a bottom view. The mat fixing plate 77 is composed of a small joist 78 having a length of 909 mm, a width of 45 mm and a thickness of 12 mm. Small joist 7
8, one side has a foamed polyethylene 79a 250 mm long and 5 mm thick, 26.5 mm at the end, 5 mm at the middle.
It is fixed with an interval of 3 mm. On the other surface of the small joist 58, a foamed polyethylene 79b having a length of 250 mm and a thickness of 2 mm is fixed at the same interval as the foamed polyethylene on the upper surface. Select the thickness of foamed polyethylene according to the height of the joist of the floor where the floor heating is installed. The foamed polyethylene of the selected surface is arranged so as to face the mat plate, and the portion where the small joist 78 is exposed between the foamed polyethylene is exposed to the joist 75.
And fix it.

After the mat plate 40 is fixed to the joist 75 by the mat fixing plate 77, the concave portion 47 on the side surface of the mat plate 40 is formed.
, The end of the hot water pipe 43 is pulled downward. The male joint 49a of a certain mat plate 41 and the female joint 49b of the adjacent mat plate 41 are connected by the above-described method, and the hot water pipe 43 of each mat plate 41 is communicated.

[0012]

The above two types are relatively inexpensive because it is not necessary to remove the existing floor when installing floor heating. However, the floor installation type is installed on the existing floor, so that the floor height is 12 to
It will be 15 mm higher, and there will be a level difference from the surroundings of other rooms and corridors where floor heating is not installed. Therefore, in some cases, it is necessary to cut the lower part of the door or to newly install a cutting material such as a sweep window. Furthermore, this step may cause a trip near an entrance in a room where the user is accustomed.

In the underfloor installation type, the existing floor material may not be a floor heating floor material (such as wood reinforced by resin impregnation). As a flooring material for general flooring, for example, a Muku material is used. The muk wood expands and contracts sharply due to the increase and decrease of the water content. When heated by the floor heating operation, the water content evaporates and contracts, and when the operation is stopped and cooled, it absorbs moisture and expands. Due to such characteristics, the gap between the adjacent flooring materials may be increased to impair the aesthetic appearance, or the surface may be warped or cracked.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and does not cause a step on a floor surface that may interfere with life, and does not cause warpage or cracks on the floor plate surface. It is an object of the present invention to provide a method of laying a floor heating element for floor heating that can be installed and a floor heating device.

[0015]

Means for Solving the Problems In order to solve the above-mentioned problems, a method of laying a planar heating element for floor heating according to a first aspect of the present invention comprises the steps of: In addition to applying a high coating, a floor heating element for floor heating is applied to the lower surface of the floor from below the floor to be fixed. By increasing the thermal resistance of the existing floorboard by applying a coating having high thermal durability, it is possible to prevent the floorboard from warping, cracking, and gaps due to the heat of the heating element. In addition, this method does not require a large-scale construction work and can be easily performed. By this painting, the height of the floor upper surface is hardly changed, so that it is possible to live without discomfort even after construction.

A method of laying a planar heating element for floor heating according to a second aspect of the present invention comprises: attaching a film having high thermal durability to an upper surface of an existing living room floor; It is characterized in that the planar heating element is fixed to the lower surface of the floor. By increasing the thermal resistance of the existing floorboard by attaching a film having high thermal durability, it is possible to prevent the floorboard from warping, cracking, and gaps due to the heat of the heating element. When the film is made transparent, it is possible to live without any discomfort even after the construction without impairing the appearance and without substantially changing the height of the floor upper surface.

[0017] The floor heating apparatus according to the first aspect of the present invention comprises: a normal floor plate that is responsible for mechanical strength of a floor in a living room; a heat-resistant coating applied on the normal floor plate; And a floor heating element for floor heating.

[0018] The floor heating apparatus according to the second aspect of the present invention comprises: a normal floor plate that is responsible for mechanical strength of a floor of a living room; a heat-resistant film stuck on the normal floor plate; And a floor heating element for floor heating.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing the structure of a floor heating device according to an embodiment of the present invention, where (A) is an overall view and (B) is a partially enlarged view. In this floor heating device, a heat-resistant paint 20 is applied on an existing floor plate 10. A hot water mat 40 is laid under the floor plate 10.

In one working example, urethane paint (manufactured by East Japan Paint Co., Ltd.) was used as the heat-resistant paint 20, and 100 to 200 g per 1 m ² was sprayed and brush-coated on the existing floorboard 10. Usually, the coating is not performed at once, but is performed twice in a thin coating called an undercoat and twice in a thick coating called a top coating. In addition, undercoating and overcoating depend on the degree of wear of the existing floor, and when the degree of wear is severe, the number of times increases. The thickness of the film after painting is 0.1 ~
It is about 0.2 mm. After this coating, it was left to dry for 3 hours.

Next, the process of laying the hot water mat will be described. The warm water mat 40 (see FIG. 3) has a joist 75
Are arranged between the adjacent joists 75 so as to be at the same height position as the upper surface (see FIG. 5). At this time, the male joint of a certain warm water mat 40 is arranged so as to line up with the female joint of an adjacent warm water mat 40. Then, the end of the hot water mat 1 is inserted into the large pull 71 and temporarily placed. In this state, the mat fixing plate 77 is placed at a right angle to the joist 75 so that the hot water mat 4
0 and fixed to the joist 75 (see FIG. 6).

The mat fixing plate 77 is composed of a small joist 78 (see FIG. 7). On one surface of the small joist 78, a foamed polyethylene 79a having a thickness of 5 mm is fixed at a predetermined interval, and on the other surface, a foamed polyethylene 79b having a thickness of 2 mm is fixed at the same interval as the foamed polyethylene on the upper surface. I have. Select the thickness of foamed polyethylene according to the height of the joist of the floor where the floor heating is installed. The foamed polyethylene on the selected surface is arranged so as to face the mat plate, and the portion where the small joist 78 is exposed between the foamed polyethylenes is fixed to the joist 75.

After the mat plate 40 is fixed to the joist 75 by the mat fixing plate 77, the concave portions 47 on the side surfaces of the mat plate 40 are formed.
, The end of the hot water pipe 43 is pulled downward. The male joint 49a of a certain mat plate 41 and the female joint 49b of the mat plate 41 arranged next to each other are connected by the above-described method, and the hot water pipe 43 of each mat plate 41 is connected (see FIG. 4).

The heat resistance of the floor plate was confirmed under the following conditions using a floor heating device composed of a hot water mat laid by the above-described method and a painted floor plate. As a comparative sample, a lacquer paint (manufactured by Union Paint Co., Ltd.) sprayed and applied in the same manner as the urethane paint and dried was used. 1) Test conditions Hot water temperature: 80 ° C Hot water cycle: One continuous cycle of 8 hours after stopping hot water for 4 hours, 100 cycles (50 days). 2) Test method Heat shielding test: 600 x 600 mm carpet (hair 7 ~
10mm) Place one piece at the joint of the floorboard. Wet rag test: One rag of 300 × 300 mm is placed at the joint of the floorboard, and 300 cc of water is replenished once a day. Sprinkling test: Spray 30 cc of water once a day around the joints of the floorboards. At this time, an enclosure having a diameter of about 150 mm is provided to prevent water from spreading.

3) Measurement Items and Judgment Methods Gap amounts between seven or more floorings (end direction, side direction): The fluctuation value is 0.5 mm or less, and the absolute value is 1.0 mm or less at all butted parts of the floorboards. thing. Steps between five or more floorings (end direction, side direction): the fluctuation value is 0.5 mm or less. Floating of base material: no lifting. Appearance: There should be no problems (breakage, deformation, cracking, warping, push-up, etc.) that cause problems in actual use.

In the heat cutoff test, the wet cloth test and the water spray test, the above-mentioned measurement items were judged. When the urethane paint was applied, good thermal durability was obtained in all items in both spraying and brushing. Obtained. On the other hand, in the comparative sample coated with the lacquer paint, the sprayed portion of water became ragged in one month.

The thickness of the coating is generally 0.05 to
1.0 mm is preferred. When using a film instead of painting, a bathroom wall sheet (manufactured by Sumitomo 3M) or a fluororesin film sheet (manufactured by Tokyo Gas Fluoro Materials)
Etc. can also be used.

In the above embodiment, an example of a hot water mat has been described. However, an electric sheet heating element such as an electric panel heater may be used as the sheet heating element.

[0029]

As apparent from the above description, the present invention has the following effects. (1) It is possible to prevent warpage, cracks and gaps of the uppermost floor plate, which are disadvantages of the conventional underfloor installation type. (2) Since a coating or a thin film is attached to the uppermost surface of the existing floorboard, there is not much difference in level, and even after the floor heating is installed, the usability in the living environment and the appearance are not impaired.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a structure of a floor heating device according to an embodiment of the present invention, where (A) is an overall view and (B) is a partially enlarged view.

FIG. 2 is a sectional view showing an installation state of a floor installation type.

3A and 3B are diagrams showing a structure of a hot water mat used for an underfloor installation type, wherein FIG. 3A is a plan view, FIG.
(C) is a bottom view, and (D) is a diagram of a DD cross section in (A).

FIG. 4 is a view showing a structure of a joint of a hot water pipe.

5 is a diagram showing an example of a floor structure on which the hot water mat of FIG. 4 is installed.

FIG. 6 is a perspective view showing the lower surface of the floor after the hot water mat is installed.

7A and 7B are diagrams showing the structure of the mat fixing plate, wherein FIG. 7A is a plan view, FIG. 7B is a side view, and FIG. 7C is a bottom view.

[Explanation of symbols]

10 Existing floor board 20 Heat resistant paint 40 Hot water mat 41 Mat board 43 Hot water pipe 45 Heat transfer sheet 47 Concave part 49 Joint 51 O ring 53 Flange 55 Hook 67 Insulation sheet 71 Large pull 73 Bundle 75 Joist 77 Mat fixing plate 78 Small joist 79 Foaming polyethylene

Claims (4)

[Claims] An upper surface of an existing living room floor is coated with high thermal durability, and a floor heating element for floor heating is fixed to the lower surface of the floor from below the floor. Laying method of floor heating element for floor heating. 2. A heat-resistant film is stuck to the upper surface of the floor of an existing living room, and a sheet heating element for floor heating is fixed to the lower surface of the floor from below the floor. Laying method of floor heating element for floor heating. 3. A normal floor panel for controlling the mechanical strength of the floor of the living room, a heat-resistant coating applied on the normal floor panel, and a floor heating element for floor heating applied under the normal floor panel. A floor heating device comprising: 4. A normal floor plate for controlling the mechanical strength of the floor of the living room, a heat-resistant film stuck on the normal floor plate, and a floor heating element for floor heating applied under the normal floor plate. A floor heating device comprising: