DE102006004755A1 - Assembling method for electrical floor heating, involves retaining of heating wire on fixing mat which has upper bearing surface and multiple fixing elements - Google Patents

Abstract

The method involves retaining of a heating wire (20) on a fixing mat (8) which has an upper bearing surface (16) and multiple fixing elements (18) .The heating wire is fixed at the fixing elements, in such a manner that the heating wire does not project over the bearing surface. The base covering is applied with the fixed heating wire on the fixing mat. Independent claims are included for the following: (1) a fixing mat for retaining of heating wire (2) a floor construction comprising fixing mat on unfurnished floor.

Description

The The invention relates to a method for constructing an electric underfloor heating system. Furthermore, the invention relates to a fixing mat for receiving a Heating wire for a floor heating as well as a floor construction.

For the construction an electric underfloor heating become common today prefabricated heating elements used on a floor, in particular a screed. The prefabricated heating elements have electric heating wires on. Such electrical underfloor heating are often used in old building renovations and in particular even in areas where only cuts of a room with underfloor heating should be. On these prefabricated parts is after their interpretation the floor covering, usually laid a tile or stone covering. The structure of such floor with electric underfloor heating this is time consuming. First, the prefabricated elements adapted to the room. This must be taken to ensure that the electrical connections to a ending or beginning previously determined place. This requires that the prefabricated heating elements first provisionally on the screed be designed and, if necessary, cut to size. Then be these prefabricated elements usually fixed by gluing. Before the tile covering can be glued on, must first this adhesive for cured the fixation of electric underfloor heating or to be dried up. In general, this means that between the Applying the electrical heating elements and laying the flooring at least one day rest must be.

Becomes in a room only a partial area with a floor heating formed, It is also necessary that the edge areas next to the prefabricated Heating elements are poured with a leveling compound, thus for applying the subsequent floor coverings to have a flat floor surface. The application the balancing mass in turn requires a considerable amount of time. In addition, this leveling compound must also cure at least one day before the floor covering can be stuck on.

Of the Invention is the object of the construction of a floor with electric underfloor heating To simplify, so that the structure of the floor faster and thus more cost-effective carried out can be.

The The object is achieved by the claim 1. Thereafter, in a first step, the laying out a Fixiermatte provided which specially designed to the effect is that they have a variety of fixation elements for recording having a heating wire. In a second step, at least a heating wire laid on the fixing mat and by means of fixing elements fixed to the fixing mat. Finally, in a third Step the actual floor covering applied.

This is usually a flow or stone flooring that is glued on. This flooring will be in particular directly on the support surface of the Glued Fixiermatte. Because the heating wires are arranged below the support surface is a tile adhesive can easily directly on the fixing mat be applied without, for example, the time-consuming application a balancing mass is required. The contact surface settles in this case preferably from individual spaced-apart sections with interposed depressions together. The surfaces of the sections form the bearing surface. Alternative to flow or stone flooring, other floor coverings, such as parquet, Planks or laminate glued or floating on the fixing mat laid.

The Fixing elements are in this case preferably at regular intervals to each other and arranged, for example, grid or net-like, so that the Heating wire in any way according to a desired Course can be relocated.

Of the particular advantage of the method is that the floor structure can be created continuously without interruptions. Despite the Manual laying of the heating wire is a considerable time saver achieved, since all the necessary steps directly to each other can follow. Overall, therefore, despite the manual laying of the reduced heating wires the necessary time required. Moreover, it does not take the comparatively expensive, prefabricated heating elements to be used. In addition to the time savings Therefore, there is also a cost savings.

The Fixiermatte is preferably designed as a web-shaped piece goods, the for the transport is rolled up. The fixation mat will be on the Ground rolled out and cut to shape. In this way The fixing mat covers the whole floor of the room, with the application very fast and easy. There are thus no uncovered Areas of the ground being filled up with a leveling compound have to.

The fixing elements can in this case both be directed inwardly formed in the material of the fixing mat, as well as protrude from the surface of the top. Depending on their shape For example, the fixing elements can run continuously or the upper side can be punctually provided with a plurality of them.

According to one preferred embodiment, the bottom slip is immediately after Fixing the heating wire applied. So it's not a wait before laying the tiles required. The entire floor will be therefore trained within an uninterrupted work process.

According to one Another preferred embodiment is the fixing mat on the floor fixed, especially glued to the ground. This allows a stable position of the fixing mat, allowing it when attaching the heating wire or at a later process step not slip.

To In a preferred variant, the heating wire is in the fixing elements snapped. This creates a solid positive connection between the fixing elements and the heating wire. Through the training as Snap elements needs the heating wire only in the fixing pressed to become.

Conveniently, The heating wire is laid by the meter. This continues to simplify the attachment of the heating wire in place in a continuous course with any length and shape, which meet the local requirements for heating power.

Around a different heat output in the different areas of the bottom, the heating wire is preferably in different Parts of the fixing mat laid differently densely. at a structured laying of the heating wire, in particular with a serpentine or meandering course, the heating wire has mutually parallel sections. The smaller the distance between two such sections, the more stronger is the heating power in this area.

Prefers the heating wire is laid in only a portion of the fixing mat. This is particularly advantageous if only in certain places desired a heating capacity in the room is. A floor heating Needless especially in the field of kitchen equipment, bathtub, built-in cupboards, etc.

Just For this Fall if only a portion of the room with underfloor heating should be provided, the proposed procedure brings decisive Advantages. Preferably, namely the fixing mat over the entire surface Designed throughout the room and the heating wire is only in the desired Sub-area relocated. Due to the complete laying out of the fixing mat needs in the fields outside the heating wire no leveling compound to be applied, as this at the usual prefabricated heating elements is the case. Just the application However, a balancing weight is very time consuming, costly and requires In addition, a break of at least one day before the Tile flooring can be applied.

The The object is further achieved according to the invention by a fixing mat after Claim 9, which is for the implementation of the method is used.

One essential element of this specially trained fixing mat is their profiled surface, the bearing surface forms a top level of Fixiermatte. The profiled fixing mat is preferably used for decoupling a bonded floor covering, in particular tiled flooring from the underlying unfinished floor, to avoid stress cracks in the tile floor covering. Furthermore serve the wells in the profile for receiving an adhesive, the Applied directly to the fixing mat to the flooring fix. Since the heating wire in its fixed position does not project beyond the support surface, The floor covering can be applied directly to the fixing mat become. In addition, this makes the fixing mat accessible without the heating wire is damaged becomes.

According to one preferred embodiment form the fixing elements snap-fits for the heating wire. With help This snap is a positive connection for the heating wire produced. The snap shots have two flanks in particular between which a narrowing is formed, which is a little narrower is the diameter of the heating wire. The heating wire must at Attach to the snaps with force through this restriction guided become and become "snatched." Alternatively to the Snap shots are simple shots as fasteners provided in which the heating wire loosely rests.

Prefers the snap shots are opened upwards, leaving the heating wire can be easily and conveniently inserted.

Advantageously, each of the fixing elements has intersecting channels. Due to the intersecting channels a change in the direction of the heating wire is easily possible when laying the heating wire. For this purpose, an intersection region is provided approximately centrally on each of the fixing elements, from which at least 3 channels radiate out, which close to each other at an angle of 120 °, so that the fixing approximately cloverleaf-like shape. Alternatively, four or more channels may intersect in the intersection area.

Around bending the heating wires for example, by 90 ° facilitate, is advantageously in the central crossing area between the intersecting channels provided a free space. In this space, the heating wire is therefore not forced.

Conveniently, have the channels a diameter in the range between 2 and 4 mm, in particular 3 mm and are thus adapted to the diameter of a conventional heating wire.

To an advantageous embodiment the fixing elements are spaced from each other. Consequently a particularly easy separation of the fixing mat is possible. Of the Distance between the adjacent fixing elements has in particular approximately one to three times the width of the channels. Due to the relatively low distances between the fixing elements tearing of the heating wire is prevented which is not guided in the distance range is.

To In another advantageous embodiment, the fixing elements form Elevations, their surfaces the bearing surface define. The advantage of these designs is that the glue, the directly on the support surface is applied, especially in the wells between can penetrate the individual fixing elements. In a structured Plastic fixing mat can the fixing elements or the depressions between the fixing elements be embossed in a continuous process. Alternatively, the Fixierele elements on a net-like mat or a textile fleece be applied. The fixing mat is therefore permeable to air in this case. at the use of a net is due to the holes in applying the (tile) Adhesive also achieved a direct adhesive bond with the raw floor.

Conveniently, is the fixing mat as a dense, so water-impermeable decoupling mat educated. Under decoupling mat is here in particular a textured plastic film or mat understood in particular in Altbausanierungen is laid on an existing floor, and on the following the flooring is glued on. Such decoupling mats are used in particular, the tile flooring from the underlying Decoupling soil insofar as that movements in the ground are not on transferred the tile flooring be so that no tensions are introduced into the flooring, the one to a tearing For example, lead from tiles could. Such decoupling mats are common formed as dimpled sheets and are made of polyethylene.

Conveniently, the fixing mat is alternatively designed as a footfall mat. As such, it insulates the sound coming from the movements on the floor same room or in the lower room. They are usually such mats for sound insulation made of hard foam or cork. The footfall sound insulation mat therefore has a double function, namely Soundproofing and Heating function. In addition, it has good thermal insulation properties on, leaving an unwanted heat radiation down is kept low.

The Task is still according to the invention solved through a floor construction according to claim 19th

The advantages with regard to the method and the fixing mat and preferred embodiments can be analogously transferred to the floor structure.

in this connection For example, the floor of a room is preferably completely laid out with the fixing mat. Advantageously, the heating wire in different sections the fixation mat laid differently densely. Further preferred the heating wire is laid only in a part of the Fixiermatte.

embodiments The invention will be explained in more detail below with reference to the drawing. It show here:

1 a schematic structure of a floor with an integrated floor heating,

2 a cross-sectional view of a part of a fixing mat,

3 an enlargement of the section A according to 2 .

4 a plan view of the fixing mat according to 2 , and

5 an exemplary course of a heating wire in a plan view of the fixing mat according to 2 ,

Same Reference numerals have the same meaning in the various figures.

In 1 is schematically a floor construction 2 shown. The floor structure comprises a floor covering 4 consisting in particular of tiles, by means of an adhesive 6 on a fixing mat 8th is appropriate. The fixation mat 8th is on a rough floor 10 , in particular a screed, fixed. It is in particular with the help of an adhesive not shown here with the raw floor 10 bonded. The floor construction 2 is by means of an insulating strip 12 from a wall 14 a room separated.

The fixation mat 8th is in this embodiment a piece goods, which rolled up to transport and when laying on the unfinished floor 10 rolled up again and cut to size and shape. The roll width is for example about 1 m. Alternatively, there is the fixing mat 8th from plate-like elements strung together. The raw floor 10 gets completely full with the fixation mat 8th designed. The fixation mat 8th In this case, for example, consists of an electrically and heat-insulating plastic and is designed in the manner of a decoupling mat or a footfall sound mat.

The detailed structure of the fixing mat 8th is in the 2 - 4 shown. The fixation mat 8th has an upper support surface 16 on, in this embodiment of a plurality of fixing elements 18 is formed. On this support surface 16 lies the flooring 4 plan on. For holding a heating wire 20 are the fixing elements 18 with recording channels 22 provided, which are approximately circular in cross section.

3 represents an enlargement of the section A according to 2 dar. The receiving channel 22 is as a recess of the fixing 18 formed and has a nearly circular cross section, which is up to the support surface 16 is open. The opening of the canal 22 is flush with the support surface 16 , The fixing element 18 forms a kind of snap-shot: near its opening to the support surface 16 it has two opposite flanks 24 on, between which a constriction is formed. The distance between the two flanks 24 is slightly smaller than the diameter of the heating wire 20 , When inserting the heating wire 20 he gets through the narrowing between the two flanks 24 with force in the canal 22 pressed and held in this form-fitting.

In the exemplary embodiment, the fixing mat 8th a thickness of about 4 mm. The fixing elements 18 make elevations on a polyethylene sheet 25 are with which they are integrally formed. Alternatively, the fixing elements 18 be applied to a net-like mat, where they by their raised structure on the net-like mat, the support surface 16 define. Under the fixing mat 8th there is a carrier fleece 26 with which the fixing mat 8th usually on the raw floor 10 is glued.

The channel 22 is about as deep as the fixation element 18 above the polyethylene web 25 rises. In its widest area is the canal 22 about 3.1 mm wide.

The distance between the two flanks 24 is smaller and is for example about 2.8 mm. The heating wire 20 whose diameter is slightly the width of the channel 22 can therefore only by impressions between the two flanks 24 be performed.

The top view of the fixing mat 8th in 4 shows the arrangement of the fixing elements 18 on the top of the fixing mat 8th , The fixing elements 18 are arranged symmetrically in the manner of a grid in rows and columns. On each of the fixing elements 18 4 channels intersect, with two adjacent channels each 22 close an angle of 90 ° with each other. The channels 22 are depressions in longitudinal and transverse webs, so that the fixing elements 18 are formed about radiating. The fixing elements 18 have approximately the shape of a four-leaf clover. By this radiation-like design a large, in the embodiment square and a recess forming space is created, which serves to receive an adhesive. In the crossing area of the canals 22 is a circular space 27 provided the bending of the heating wire 20 facilitated.

The distance between two fixing elements 18 in this embodiment is only about 1.5 times the width of the channels 22 so that the heating wire 20 as well as possible and a tearing of the heating wire 20 is prevented. This distance is a maximum of about 1 cm.

Between the fixing elements 18 in the interstices nubs not shown here are arranged in an alternative embodiment. The knobs can for example be introduced by embossing and have a cylindrical shape. These nubs form together with the fixing elements 18 the bearing surface 16 , therefore serve to support the flooring 4 , Alternatively, only the knobs form the bearing surface 16 and the fixing elements 18 are overall below the support surface 16 arranged.

The heating wire 20 is sold by the meter and will be on site at the construction site in the canals 22 pressed. The length of the heating wire used 20 and its course on the fixation mat 8th are determined by the heating requirements in different areas of the floor. The heating wire 20 is in a serpentine course in the channels 22 relocated, being at the intersection areas in the open space 27 the direction of its course changes. Thus, it also allows the heating wire 20 in the various sub-areas of the fixing mat 8th laid differently densely.

5 shows the course of one in the channels 22 snapped in heating wire 20 , The heating wire 20 has a serpentine course, which in the different sections I, II, III of the fixing mat 8th laid differently densely. The electric underfloor heating comprises in this embodiment, three subregions I, II, III, which are separated from each other in the figure by dashed lines.

In the first partial area I, the heating wire extends 20 over the entire surface of the fixing mat 8th where the distance between each two adjacent parallel sections 28a . 28b is low. In this area ensures the shape of the attached heating wire 20 for a particularly intensive heating of the floor.

In a second portion II of the heating wire 20 less densely laid so that this area of the floor is less intensively heated during operation of the underfloor heating.

A third subregion III of the fixing mat 8th is due to the absence of the heating wire 20 characterized. This area of the floor is not heated. This is particularly useful if there are larger furniture or devices in this area, so that heating the floor at this point is inefficient.

Similarly, it is also possible to use the heating wire 20 in only a partial area of the fixing mat 8th to lay, if not the whole ground must be heated.

Because the heating wire 20 manually routed on site, its ends can easily at a common Ansteuerpunkt 30 be merged where they are connected to a control and power supply unit.

2

floor construction

4

Flooring, tiling

6

Glue, adhesive layer

8th

holding pad

10

unfinished floor

12

insulation strips

14

wall

16

bearing surface

18

fixing, channel

20

heating wire

22

channel

24

flank

25

polyethylene sheet

26

carrier fleece

27

free space

28a, 28b

sections

30

driving point

I, II, III

subregions the fixing mat

A

neckline

Claims (22)

Method for constructing an electric underfloor heating, in which - a fixing mat ( 8th ) on a floor ( 10 ), which has an upper support surface ( 16 ) as well as several fixing elements ( 18 ) for receiving a heating wire ( 20 ), - at least one heating wire ( 20 ) in a desired course on the fixing elements ( 18 ) is fixed, such that the heating wire does not over the support surface ( 16 ), - on the fixing mat ( 8th ) with the heating wire attached thereto ( 20 ) a floor covering ( 4 ) is applied. Method according to claim 1, wherein the floor covering ( 4 ) immediately after fixing the heating wire ( 20 ) is applied. Method according to one of claims 1 or 2, wherein the fixing mat ( 8th ) on the ground ( 10 ), in particular to the ground ( 10 ) is glued. Method according to one of the preceding claims, in which the heating wire ( 20 ) in the fixing elements ( 18 ) is snapped. Method according to one of the preceding claims, in which the heating wire ( 20 ) is laid by the meter. Method according to one of the preceding claims, in which the heating wire ( 20 ) in different subregions (I, II, III) of the fixing mat ( 8th ) is installed differently densely. Method according to one of the preceding claims, in which the heating wire ( 10 ) only in a partial area (I, II) of the fixing mat ( 8th ). Method according to one of the preceding claims, in which the soil ( 10 ) of a room completely with the fixing mat ( 8th ) is designed. Fixing mat ( 8th ) for receiving a heating wire ( 20 ) for a floor heating, with a support surface ( 16 ) for the application of a floor covering ( 9 ) as well as with fixing elements ( 18 ) for fixing the heating wire ( 20 ), which are formed such that the heating wire ( 20 ) in its fixed position not over the support surface ( 16 ) survives Fixing mat ( 8th ) according to claim 9, wherein the fixing elements ( 18 ) Have snap shots. Fixing mat ( 8th ) according to claim 10, wherein the snap-on receptacles are open to the top. Fixing mat ( 8th ) according to one of claims 9 to 11, in which each of the fixing elements ( 18 ) intersecting channels ( 22 ) having. Fixing mat ( 8th ) according to claim 12, wherein in the central crossing area between the intersecting channels ( 22 ) a free space ( 27 ) is provided. Fixing mat ( 8th ) according to claim 12 or 13, wherein the channels ( 22 ) have a diameter in the range between 2 and 4 mm, in particular of about 3 mm. Fixing mat ( 8th ) according to one of Claims 9 to 13, in which the fixing elements ( 18 ) are spaced from each other. Fixing mat ( 8th ) according to one of claims 9 to 15, wherein the fixing elements ( 18 ) Form elevations whose surfaces are the bearing surface ( 16 ) define. Fixing mat ( 8th ) according to one of claims 9 to 16, which is formed as a dense decoupling mat. Fixing mat ( 8th ) according to one of claims 9 to 17, which is designed as a footfall sound mat. Floor construction ( 2 ), comprising one on a bare floor ( 10 ) fixed fixing mat ( 8th ), which has a bearing surface ( 16 ) as well as several fixing elements ( 18 ), wherein a heating wire ( 20 ) in a desired shape on the fixing elements ( 18 ) is not over the support surface protruding fixed and wherein on the fixing mat ( 8th ) with the heating wire fixed thereto ( 20 ) a floor covering ( 4 ) is applied. Floor construction ( 2 ) according to claim 19, wherein the soil ( 10 ) of a room completely with the fixing mat ( 8th ) is designed. Floor construction ( 2 ) according to one of claims 19 or 20, wherein the heating wire ( 20 ) in different subareas (I, II III) of the fixation mat ( 8th ) Is installed differently densely. Floor construction ( 2 ) according to one of claims 19 to 21, wherein the heating wire ( 20 ) only in a partial area (I, II) of the fixing mat ( 8th ).