JPS59225230A - Floor heating work - Google Patents

Abstract

PURPOSE:To cause a load to be applied to an under-surface floor through mortar legs by a method wherein mortar layer enclosing wire mesh and heat radiating tubes therein is supported by some mortar legs reaching the upper surface of the under-surface floor. CONSTITUTION:Several plate-like heat insulating members 1 are applied on the upper surface of the floor base material 6 in such a way as some heat radiating tube installation grooves 2 are made to form a continuous line and then a heat insulating layer is made. Heat radiating tubes 3 are held by the tube holding parts 2'...and installed, and wire mesh 7 is applied over the heat radiating tubes 3. Mortar is flowed over the wire mesh 7 to form the mortar layer 8. A part of the mortar is flowed into the mortar leg forming through-pass holes 4,...to make an integral assembly of the mortar legs 8' and the mortar layer 8. A screw bolt 5 arranged vertically on the floor base 6 in the mortar forming through-pass holes 4 are enclosed by the mortar legs 8'. A load applied to the heating floor is transmitted to the floor base 6 through the mortar layer 8 and the mortar legs 8'.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an improvement in a floor heating installation method by casting on site.

(Conventional technology) Among the many heating systems, the floor heating system has traditionally been considered an ideal heating method for keeping the head cold and feet warm, but its installation method is complicated and takes a long time. Moreover, its penetration rate was quite low, partly due to the high cost of equipment.

The present inventor has paid attention to the advantages of underfloor heating systems and the disadvantages of their construction components, and as a result of research on methods and means to completely eliminate these disadvantages and make full use of only those advantages, the inventor has developed a lightweight foamed synthetic resin, etc. A heat dissipation tube that allows hot water to pass through and dissipate heat is spread over the heat insulating layer formed by laying a plate-shaped heat insulating member for forming a heat insulating layer on the top surface of the floor subfloor, and a wire mesh is placed above the heat dissipation tube. A heating floor structure in which tubes are embedded with a layer of mortar [Utility Application No. 51-164777 (
Utility Model No. 56-80480) was devised, but
As a result of further investigation, it was found that a groove for arranging a heat dissipation tube was provided on the surface side of the plate-shaped heat insulating member, a heat dissipation tube was arranged and laid in the groove, a wire mesh was placed above the heat dissipation tube, and the wire mesh and the heat dissipation tube were connected. He devised a floor heating structure that was embedded in a layer of mortar [Utility Application No. 10905-1980 and Utility Model Application No. 112490-1980]. This improved idea is that if three types of plate-shaped heat insulating members with different shapes of grooves for arranging the heat dissipation tubes are prepared, the installation of the heat dissipation tubes will be made very easy. Ta. Since then, the floor heating structure, which has been improved before and after construction at various locations, has been highly praised for its excellent advantages, the simplicity of the construction process, and the uniform heating effect. On the other hand, it is impossible to finish the upper surface of the flooring base with a plastering trowel to make it a completely horizontal surface, so the contact between the lower surface of the board-shaped insulation member and the upper surface of the flooring is at three points. When a load is applied to the upper surface of the heating floor, the contact area of the plate-shaped heat insulating member is partially compressed and deformed, causing the finished floor surface to sink.

(Problems to be Solved by the Invention) Although the present invention uses a plate-shaped heat insulating member for forming a heat insulating layer, such as one made of lightweight foamed synthetic resin with low hardness, it can withstand large loads and last for a long period of time. The purpose of this method is to provide a floor heating construction method that can quickly construct a floor heating structure that does not cause settling of the heated floor surface due to sagging or fading of the board-shaped insulation member. Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention conventionally uses a method in which a mortar layer enveloping a mesh screen and a heat dissipation tube is formed by laying a large number of plate-shaped heat insulating members on the top surface of a flat subfloor. When forming the mortar layer, the mortar leg that penetrates the λ-C5 board-shaped insulation member and reaches the upper surface of the subfloor is integrated with the mortar layer. This prevents any load from being applied to the plate-shaped heat insulating member. In other words, the floor heating installation method of the present invention (
A heat insulating material made of lightweight foamed synthetic resin, etc., which has grooves for arranging heat dissipation tubes formed on its surface side, and a number of through holes for forming mortar legs penetrating from the surface side to the back side at appropriate intervals. A first step of forming a heat insulating material layer by laying a large number of layer-forming plate-shaped heat insulating members on the upper surface of the flooring so that the grooves for radiating tubes formed in each plate-shaped heat insulating member are continuous. (B) a second step of arranging and installing heat dissipation tubes in the series of heat dissipation tube grooves formed in the first step; and (C) a wire mesh above the heat dissipation tubes laid in the second step. (2)
Mortar is poured over the stretched wire mesh to form a mortar layer that envelops the wire mesh and the heat dissipation tube, and a portion of the poured mortar is also poured into the through holes for forming the mortar legs to form the flooring. The present invention is characterized by comprising a fourth step of forming mortar legs reaching the upper surface of the mortar layer integrally with the mortar layer.

(Function) According to the floor heating construction method of the present invention, the mortar layer that envelops the wire mesh and the heat dissipation duplex is covered with mortar legs that completely penetrate the plate-shaped heat insulating member laid on the upper surface of the floor base and reach the upper surface of the floor base. A supporting floor heating structure is obtained. Then, the load applied to the mortar layer is applied to the subfloor via the mortar legs, and the load is no longer applied to the plate-shaped heat insulating member.

(Example) Embodiments of the present invention will now be described in detail with reference to the drawings.

The drawing is an explanatory diagram of the floor heating construction method of the present invention, and the first
The figure is a plan view of a portion of the floor heating structure showing a state in which the third step has been completed. FIG. 2 shows a state in which the fourth step has been completed, and is a longitudinal sectional view of a portion of the floor heating structure taken along line 8- in FIG. 1.

In the figure, 1 is a disc-shaped heat insulating member for forming a heat insulating layer, such as one made of lightweight foamed synthetic resin with low hardness. A groove 2 for arranging a heat dissipation tube is formed on the surface side of the disc-shaped heat insulating member 1. 4. Through holes for forming mortar legs that penetrate from the front side to the back side. ... are drilled at appropriate intervals.

The cross-sectional shape of the groove 2 is designed to be thicker than the thickness of the heat radiation tube 3 that radiates heat through the hot water, so that the appropriate height of the drainage groove 2 is determined.
For r, reduce the width and depth of the groove to maintain the heat dissipation tube 3.
4-shaped tube holding portions 2', . . . are formed. Although not shown, a large number of plate-shaped heat insulating members 1. When forming a heat insulating material layer by laying .
In addition to the linear shape shown in the figure, there are also shapes that change direction. The heat dissipation tube 3 is connected to the tube holding part 2',
It is designed so that it does not come into contact with the heat dissipation tube arrangement groove 2 at other points j5r. Reference numeral 5 denotes a screw installed vertically in the flooring 6 within the through hole 4. 7 is heat dissipation tube 3
This is a wire mesh stretched over the roof. 8 is a mortar layer that envelops the wire mesh 7 and the heat radiation tube 3. Reference numeral 8' denotes a mortar leg formed in the mortar layer 8-1* within the mortar leg forming through hole, and the lower end of the mortar leg 8' reaches the upper surface of the subfloor 6.

Examples of the double heating material used in the plate-shaped heat insulating member 1 include synthetic resin foams and polyurethane foams commercially available under trademarks such as "Styrofoam" and "Kanelite Foam." The heat dissipation tube 3 is preferably a soft polyethylene tube having an inner diameter of 8 to 12 degrees and a wall thickness of about 1=1.4 vm. The wire mesh 7 is for preventing cracks in the mortar layer 8, and may be a metal lath of about 1.2t x 30mm x 45+n+n, for example. Said heat dissipation tube arrangement groove 2
The pitch interval of the heat dissipation tubes 3 is preferably about 4 to 6 m, and the thickness of the plate-shaped heat insulating member 1 is about 3 to 6 m.
The thickness of the mortar layer 8 in the upper layer of the heat dissipation tube 3 is preferably about 10 to 20 mm. The diameter of the through hole 4 and the mortar leg 8' is approximately 3cn1, and the diameter of the mortar leg 8' is approximately 30 cm.
By arranging them vertically at intervals of ~50 crn, the entire mortar layer 8 is supported on the subfloor 6 by the mortar legs 8'. Of course, a material that increases thermal conductivity or a substance that increases heat capacity may be appropriately added to the composition of the mortar layer 8. Examples of the floor base include concrete slabs.Next, in order to install on-site floor heating, the first step is to form a large number of plate-shaped heat insulating members 1 into respective plate-shaped heat insulating members. , the heat dissipation tube arrangement grooves 2 are laid in a series on the upper surface of the subfloor 6 to form a heat insulating material layer,
As the second step, the tube holding portion 2' in the series of heat dissipation tube grooves 2 formed in the first step,...
- Hold the heat dissipation tube 3 and arrange and install the heat dissipation tube 3 in the groove Z, and as a third step, the heat dissipation tube 3 that was disposed and installed in the heat dissipation tube arrangement groove 2 in the second step. When the wire mesh 7 is stretched over the wire, the condition shown in FIG. 1 is obtained. As a fourth step, mortar is poured onto the wire mesh 7 stretched in the third step to form a mortar layer 8 that wraps around the wire mesh 7 and the heat radiation tube 3 in the heat radiation tube arrangement groove 2, and the mortar is poured. 4. Cut a part of the mortar into through holes for forming mortar legs. When the mortar legs 8' reaching the upper surface of the floor subfloor 6 are formed integrally with the mortar layer 8, the underfloor heating installation is completed and the state shown in FIG. 2 is achieved. The screws 5, which are erected on the flooring 6 in the mortar leg forming through holes 4, are wrapped in the mortar legs 8'. Furthermore, the mortar layer 8
After curing, laying a suitable floor covering material on top of the mortar layer 8 is the same as in the conventional method. In the floor heating structure obtained through the first to fourth steps described above, the load applied on the heated floor is applied to the floor subfloor 6 via the mortar layer 81 and the mortar legs 8', and the load is transferred to the plate-shaped heat insulating member. 1. It doesn't cost anything. This prevents the plate-shaped heat insulating member for forming the heat insulating layer, such as one made of lightweight foamed synthetic resin with low hardness, from being compressed and deformed by the load applied to the heating floor. 1. Even though the shape of the plate-shaped heat insulating member changes over time due to long-term use, the surface of the heated floor does not sink. Since most of the heat radiation tubes 3 are surrounded by the mortar layer 8, distortion of the heating floor due to thermal expansion of the heat radiation tubes 3 itself is completely prevented. When mortar is flowed into the mortar leg forming through hole 4 to form the mortar leg 8', the tip of the mortar leg 8' is formed by adhering to the upper surface of the floor base 6, and the mortar leg Since the screws 5 erected within the floor base 6 are enclosed within the floor 8', upward warping of the mortar layer 8 due to thermal expansion does not occur. As mentioned above, the tips of the mortar legs 8' are formed by the mortar poured onto the upper surface of the subfloor 6, so even if there are irregularities on the upper surface of the subfloor 6, the mortar legs cannot be formed. There is no problem. Therefore, it becomes possible to simplify the finishing work on the upper surface of the subfloor, which has been the biggest bottleneck in conventional floor heating construction.

(Effects of the Invention) The underfloor heating construction method of the present invention is such that the mortar legs supporting the mortar layer surrounding the wire mesh and the heat dissipation tube are passed through the plate-shaped heat insulating member laid on the upper surface of the floor subfloor, and then By forming the mortar layer integrally with the mortar layer, the following effects can be achieved. In other words, (1) despite using a heat insulating material such as a lightweight foamed synthetic resin with low hardness, it is able to withstand large loads, and the plate-shaped heat insulating material does not wear out even after long-term use. It is possible to obtain a floor heating structure in which the heating floor surface does not sink due to sagging. (2) In order to prevent compressive deformation of the heat insulating material layer due to load, there is no need to thicken the mortar layer that wraps around the wire mesh and heat dissipation tube as in the past, so the thickness of the mortar layer can be reduced; This has made it possible to shorten the time required for mortar pouring work and the time required for heating to start up. (3) Mortar legs are formed by mortar that flows into the top surface of the subfloor through the mortar leg forming holes that penetrate from the plate-shaped heat insulating member't& face side to the back side, so there may be unevenness on the top surface of the subfloor. Since it is possible to form mortar legs even if the plate-shaped insulation member is installed, in order to prevent the heating floor surface from sinking due to deformation of the plate-shaped insulation member over time, the top surface of the subfloor on which the plate-shaped insulation member is installed is finished with a plastering trowel as in the past. There is no need for precise flat finishing. Therefore, it has become possible to simplify the finishing of the top surface of the floor subfloor, which was the biggest hurdle in conventional floor heating construction, and to significantly shorten the time required for on-site installation. (4) Since the heat dissipation tubes are installed in a series of heat dissipation tube grooves formed on the surface side of the heat insulating material layer, the work of distributing the heat dissipation tubes can be carried out easily and quickly.

[Brief explanation of drawings]

The drawing is an explanatory diagram of the floor heating construction method of the present invention, and the first
The figure is a plan view of a part of the floor heating structure showing the state in which the third step has been completed, and FIG. 2 shows the entire state in which the fourth step has been completed.
2 is a vertical sectional view of a portion of the floor heating structure taken along the line A- in FIG. 1. FIG. 1: Disc-shaped heat insulating member 2 for forming a heat insulating material layer, groove for arranging a heat dissipation tube 3: Heat dissipation tube 4: Through hole for forming mortar legs 6: Floor base 7: Wire mesh 8
: Mortar layer 8' : Mortar leg Patent applicant Kawakita Denko Co., Ltd.

Claims (1)

[Claims] A groove for arranging a heat dissipation tube is formed on the front side, and a through hole for forming a mortar leg that penetrates from the front side to the back side has an appropriate m.
] A large number of plate-shaped heat insulating members for forming a heat insulating material layer, such as those made of lightweight foamed synthetic resin, are arranged at intervals, and grooves for arranging heat dissipation tubes formed in each plate-shaped heat insulating member are arranged in a series. The first step is to lay the heat radiating tubes on the upper surface of the flooring to form a heat insulating layer, and the second step is to arrange and lay the heat radiating tubes in the series of heat radiating tube grooves formed in the first step. , a third step of stretching a wire mesh above the heat dissipation tube laid in the second step, and pouring mortar over the stretched wire mesh to form a mortar layer that envelops the wire mesh and the heat dissipation tube. At the same time, a fourth step of pouring a portion of the poured mortar into the mortar leg forming through holes to reach the upper surface of the subfloor and forming mortar legs integrally with the mortar layer. Underfloor heating construction method.