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Floor heating is accepted by many friends due to its comfort, cleanliness and other advantages.

However, compared with exposed heating, floor heating has a very obvious drawback, which is that it takes up floor height.

Because floor heating is laid and installed on the ground, it will lead to a reduction in the net height of the room.

Therefore, some friends will consider the issue of indoor net height when installing floor heating.

So, how much height does floor heating occupy?

What is the thickness of floor heating?

For floor heating, the conventional practice is to complete the floor heating first and then lay tiles on the finished floor.

Then this method of doing floor heating first is actually the standard method of floor heating backfilling.

This is what we call the thickness of floor heating, which is actually the thickness of the finished surface of the floor heating.

These include insulation boards, reflective films, steel mesh, heating pipes, backfill concrete, etc.

The specific thickness of each layer is as follows.

1. Insulation board

In conventional floor heating installations, the bottom layer is the insulation board.

The most common insulation boards used for floor heating include traditional polystyrene boards and later extruded boards.

The role of insulation board:One is to prevent heat from conducting downwards, and the other is to fix the mesh and heating tube above to a certain extent.

For the insulation board in floor heating, the thickness of the insulation board is as follows according to the different laying positions:

1. If it is on the first floor and there is no basement below, then the thickness of the insulation board is generally recommended to be 50 mm, which is 5 cm thick.

2. If it is the first floor but there is a basement below, it is generally recommended to choose a 30 mm thick insulation board.

3. Standard layer. For most areas, it is generally recommended that you choose a 30 mm thick insulation board, and the minimum cannot be less than 20 mm.

2. Reflective film

During the installation of floor heating, after we lay the insulation board, we lay a layer of reflective film on it.

The laying method of the reflective film is very simple, which is to lay the roll on the insulation board, and then use special tape to bond the joints.

The function of the reflective film is to reflect the heat through the reflective film to our indoor floor, and then dissipate the heat to the indoor through the ground.

The thickness of common reflective films is as follows:

1. For most common reflective films, the thickness used is generally between 2 mm and 4 mm. Very few are too thick.

2. In fact, for floor heating, if we calculate the floor height occupied by floor heating, the thickness of the reflective film is generally not taken into account. In other words, these 2 mm to 4 mm can be ignored.

3. Steel Mesh

When installing water floor heating, the third layer from the bottom up should actually be the steel mesh.

However, for standard floor heating methods, the steel mesh generally consists of two layers.

In fact, it means that the third layer is laid with steel mesh, the fourth layer is laid with heating pipes, and above the heating pipes, which is the fifth layer, another layer of steel mesh is laid.

The role of steel mesh:The first is to ensure the shaping and fixation of the heating pipe; the second is to prevent the cracking of the backfill layer concrete.

The thickness of the steel mesh used for floor heating is as follows:

1. The diameter of most steel mesh used for floor heating is about 2 mm to 3 mm.

2. If two layers of steel mesh are laid, the total occupied height is actually 4 mm to 6 mm.

4. Heating tube

The most important part of floor heating is the installation of floor heating pipes.

As for water floor heating, what we see is that it is installed in circles along our indoor floor.

For floor heating heating pipes, common ones include PE-X, PERT, PB and other pipes.

These pipes have different sizes, some with a diameter of 20 mm and some with a diameter of 25 mm, of which the 20 mm diameter is the most common.

For most households, the diameter of the floor heating pipe is basically 20 mm.

Therefore, the floor height occupied by the floor heating pipe is as follows:

1. The size occupied by the heating pipe, that is, the floor height occupied by the heating pipe.For example, if we choose a PERT tube with a diameter of 20 mm and a wall thickness of 3 mm, then the outer diameter is basically around 25 to 26 mm.

2. Pay attention to special parts.There are intersecting parts, so everyone should pay attention to the height, because when installing the floor heating pipes, there may be partial intersection with the indoor water pipes.

5. Backfill layer

After we have laid the floor heating on the entire ground, we will eventually need to backfill it.

For the backfill of floor heating, concrete backfill is generally used, whether it is wet concrete or dry concrete.

The specific method is to pour concrete on the installed floor heating ground, completely covering the entire floor heating underneath.

The concrete backfill method requires that there must be at least a 2 to 3 centimeter protective layer on the top of the floor heating pipe.

Therefore, for the floor heating backfill layer, we calculate the floor height it occupies according to the following method:

1. Total thickness of backfill.The total backfill thickness should be calculated from the reflective film upwards. Generally speaking, the total thickness of the backfill layer is about 5 cm to 6 cm.

2. Calculate according to the thickness of the protective layer of the floor heating pipe.In other words, if the protective layer is 3 centimeters from the top of the floor heating pipe, then the thickness of the backfill is actually about 5 to 6 centimeters.

6. Total thickness

The above introduces the situation of each floor of floor heating and the floor height occupied.

Maybe everyone looks at each floor a bit messy and cannot accurately calculate how many floors it occupies.

Therefore, it is necessary to summarize the total floor height occupied by floor heating:

1. The total thickness is about 90 mm, or about 9 cm.In fact, the range of occupied floor height should be from 9 cm to 12 cm.

2. Introduction of different situations.The floor height occupied by floor heating on a standard floor is about 9 centimeters; if there is no basement on the first floor, the floor height occupied is about 12 centimeters; if there is a basement, the floor height occupied is also about 9 centimeters.

What is the thickness of the decorative layer?

For floor heating, in addition to the floor height occupied by the floor heating itself, we also need to consider the thickness of the decorative layer.

Of course, whether we have floor heating at home or not, the thickness of this decorative layer basically exists.

However, if we install floor heating at home ourselves and then decorate it, we must accurately calculate the thickness of the decorative layer.

Because the total floor height is the height of the floor heating plus the thickness of the decorative layer.

For floor heating floors, the general thickness of the decorative layer is as follows:

1. Cement mortar paving

The most common method for floor heating is to lay tiles. The conventional paving material is to use cement mortar for paving.

When paving with cement mortar, what we see is that a layer of dry-mixed cement mortar is first spread on the ground, and then the tiles are laid on the surface of this layer of cement mortar.

Therefore, the thickness of the decorative layer is generally the following two:

1. Conventional thickness.For floor tiles, dry paving with cement mortar, the common thickness of the decorative layer is about 4 cm. If the tile is 1 cm thick, the total thickness is actually 5 cm.

2. Special thickness.Since ordinary ceramic tiles have certain requirements on the craftsmanship of tile workers and the flatness of the ground, some special cases have occurred. For example, the overall thickness of some tiles is only three centimeters, while the overall thickness of some tiles is as high as seven or eight centimeters.

2. Tile adhesive paving

There is another way to lay tiles on a floor with underfloor heating, which is to use tile adhesive.

In fact, the use of tile adhesive to lay tiles is largely to save space and avoid taking up too much floor height.

It is also very simple to lay tiles with tile adhesive. Just apply a layer of tile adhesive on the back of the tile, then apply a layer of tile adhesive on the ground, and finally stick the tile on the ground.

Therefore, there is a big difference between using tile adhesive to lay tiles and using traditional cement mortar to lay tiles.

One of the most obvious differences is the thickness of the adhesive layer.

The specific differences are as follows:

1. The adhesive layer used for laying tiles with tile adhesive, that is, the thickness of the tile adhesive, is very small.Generally, it can be controlled within 5 mm. Therefore, if we add one centimeter of tile at this time, the total thickness is actually 1.5 centimeters.

2. The thickness of the leveling layer.Since tile adhesive is used for pasting, the flatness of the ground is very high. Therefore, it may be necessary to level the ground. At this time, a 2-3 cm leveling layer may be considered.

What is the total thickness of floor heating plus decorative layer?

If we want to know the floor height occupied by floor heating, what we should actually calculate is the total thickness of the floor heating plus the decorative layer above.

After that, subtract the total thickness from the net height of the room, and the result is the net space left in our room.

As for the total thickness of the floor heating home decoration layer, there are actually some differences in different situations.

For most families, there are generally three situations:

1. For residents living on the first floor without a basement, the total height of the floor heating plus the decorative layer above is about 15 to 16 centimeters.

2. For living rooms on the first floor but with a basement, the total thickness of the floor heating plus the decorative layer above is about 14 centimeters.

3. For standard floors, the total thickness of the floor heating plus the decorative layer above is actually about 14 centimeters.

Therefore, whether to install floor heating in our home, we generally need to consider these situations and then calculate the net height of the house.

Although floor heating is better than radiators in many aspects, it has a very fatal flaw, which is that it does affect the floor height.

The above also introduces the influence of floor heating on the floor height. In fact, everyone should grasp one point, that is, floor heating basically affects the floor height of 8~9 centimeters. If the floor height of our home is less than 2.6 meters, it is generally difficult to install floor heating, otherwise it may cause depression in the indoor space. Everyone must be clear about this.

(This article is compiled and edited by Qijia Anan, and the pictures are from the Internet. If there is any infringement, please let us know to delete it!)