How to groove a concrete wall for pipes. How to groove walls or floors for pipes

July 31, 2016
Specialization: facade finishing, interior decoration, construction of cottages, garages. Experience of an amateur gardener and gardener. We also have experience in repairing cars and motorcycles. Hobbies: playing the guitar and many other things that I don’t have time for :)

Communications, as you know, do not add attractiveness to any interior, so many people, in the process of home renovation, try to hide water and heating pipes in the walls. This always requires cutting walls for pipes. On the one hand, there is nothing complicated in this operation, but on the other hand, before you start working, you need to know some of its nuances and subtleties.

In this article, as you probably guessed, I will tell you in detail how to groove a wall for pipes in several ways.

Tools

The gating process, as well as its speed and labor intensity, depends on the tool with which the work is performed. The most effective tools to perform this operation are the following;

perforator;
Bulgarian;
wall chaser

Of course, you will need some other tools for gating:

roulette;
building level;
pencil;
detection device hidden wiring(if there is no diagram of its location).

After preparing all these tools, you can start working.

Scoring technology

Regardless of the type of tool you will use for gating, this procedure can be divided into several stages:

If you do not want to do this work yourself or you do not have the necessary tool, you can turn to specialists for help. The cost of gating walls for pipes averages about 300 rubles per linear meter.

Preparation and application of markings

Grooving channels in walls begins with marking:

if you do not have a wiring diagram in the walls, before marking, make sure that there are no grooves in the area where you plan to install hidden wires. There are special devices for these purposes;
then use building level and a pencil to mark. As a rule, it is carried out according to the design of the future pipeline.
When applying markings, keep in mind that the width of the grooves must be such that pipes with;
At the end of the work, make sure that the markings are applied correctly.

After marking is applied, it can be measured with a tape measure. This way you will know the exact number of pipes that will be needed to install the pipeline.

Hammer

Punching with a hammer drill is the most common way to create channels in walls for pipes with your own hands, since almost every home craftsman has a hammer drill. Besides, this method is safe and at the same time universal - in this way you can make channels in the wall from any materials, be it concrete or brick.

The work is performed in the following sequence:

First of all, you need to make holes along the marked lines. If the groove is made in a concrete wall, then use a drill with a Pobedit tip for this purpose. As for the distance between the holes, the smaller it is, the better;
then switch the tool to impact mode, then change the drill to a chisel;
after that, connect the holes together using a chisel;

Next, you need to clean the channel using a chisel or a special blade for chipping. Please note that the depth must be such that not only a pipe with insulation, but also a plaster solution can fit into the channel space;
At the end of the work, clean the groove from dust and other debris. To do this, vacuum the channel or wipe it with a damp cloth. It should be noted that this stage is performed regardless of which tool was used for gating.

If you need to groove a panel load-bearing wall, keep in mind that the depth of the channel should not reach the reinforcement. In addition, diagonal scoring is not allowed.

As a result, you should have a smooth and neat channel, without any potholes or irregularities.

Bulgarian

Now let's look at how to groove a wall for a pipe. First of all, I would like to note that The grinder is a very dangerous tool. Therefore, when working with it, be sure to follow safety precautions and use only high-quality discs designed for the surface you will be processing.

At the same time, using an angle grinder has its advantages:

the edges of the channels are smooth;
The process of making grooves is much faster than when using a hammer drill.

Instructions for working with an angle grinder in this case look like this:

install a diamond-coated circle on the grinder;
then make cuts along the marked marking lines;

after that, knock out the grooves using a chisel and a blade. If necessary, another cut can be made in the middle of the groove to make the job easier. In some cases, it is better to use a hammer drill to gouge out grooves.

In the process of making grooves with an angle grinder, a lot of dust is generated. Therefore, use a hammer drill and other means personal protection.

Wall chaser

The wall chaser allows you to quickly and without special effort make channels for pipes in walls from any materials. This tool resembles a grinder with several parallel disks. Expensive models of wall chasers are equipped with vacuum cleaners, which allows this procedure to be carried out without dust.

The process of making channels with a wall chaser is quite simple:

First of all, you need to adjust the groove width and cutting depth. U different models the instrument can be configured in different ways;
Next, a cut is made along the intended line. This procedure is carried out on the same principle as slitting with a grinder, with the only difference being that you make two cuts at once in one pass;
To complete the work, you need to hollow out the grooves, and then clean the resulting channels.

It should be noted that the price of a powerful wall chaser, which can be used to make channels for pipes, is quite high - more than 10,000 rubles. Therefore, for repairs within the same apartment or house, it is more advisable to use an angle grinder.

Conclusion

In general, gating walls for pipes is a fairly simple procedure. However, it also requires adherence to certain technology. In this case, you will save a lot of effort and time, and also avoid mistakes and rework.

From the video in this article you can get Additional information about how to groove walls with a grinder. If you have any questions, ask them in the comments, and I will be happy to answer you.

July 31, 2016

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If during the renovation the goal is to do everything perfectly, then at the very beginning of the work you will have to trench the walls for the water pipes. Yes, this is an additional difficult task, but the result will show how advisable it was. In this article we will show in detail how to groove a wall for pipes in the bathroom.

Marking for gating

It is important to place water pipes in the wall “in a cluster”, compactly, so that in the future you don’t have to remember where they go every time.

As a rule, they try to place them strictly horizontally or vertically, relative to the floor surface. Thanks to this, you don't have to worry every time you need to drill a hole in the wall.

It is advisable to draw up a drawing on the wall in advance for the grooves, which will take into account the diameter of the pipe and the depth of the desired groove. The standard size of the groove is 25*25 mm.

The created sketch will simplify the operation of the water supply in the future, especially in cases of leakage and the need for scheduled maintenance. The marking also takes into account the location of the electrical wiring.

The basic principle

The basic principle of gating is to create a shallow “hole” into which a communication junction must be inserted. To do this, go deep into the wall with a specialized construction tool (wall chaser) two parallel ones are made at a distance of 2.5 cm from each other.

The depth is approximately the same, this is due to the diameter of the pipes (usually 20 mm).

After all the manipulations are completed, the hammer drill comes into operation. It is used to remove the internal filling between the slots.

Cutting out furrows

Cutting grooves on the wall for grooves is not difficult, but it is a “dusty” task. For these purposes you can use:

Grinder - working with it may take longer and the level of dust will be higher. This option is perfect for home craftsmen who do repairs “for themselves.” It is very important to purchase a high-quality diamond wheel, otherwise problems with concrete walls may occur.
Wall chaser is a professional tool for wall grooves. It provides a channel that is even in depth and shape, and does not require significant effort on the part of the master. average cost A wall chaser on the market costs 6,000 rubles, but it can be rented for 500 rubles/day.

Removing the middle part of the groove

There are three ways to remove the internal slot filling:

a perforator with a “chisel” attachment – the procedure is quite easy, but you need to correctly evaluate the applied efforts so as not to damage the integrity of the edges of the grooves;
manually with a hammer and chisel - requires effort and time, but is perfect when you don’t have any professional tool.

Comment from our expert:“Yes, for those who do one-time repairs, and the goal is to save money - you can trench walls with improvised tools. Grinder with a good wheel + chisel and hammer. It will be more difficult and longer, but it will not cost anything.”

Picking up optimal tool, you should pay attention to what material the wall is made of. It can be brick, concrete, foam or gas block.

The last two options are easy to process manually, but with brick and concrete walls it is still advisable to use a professional tool.

Attention to protective equipment

It is very important to use protective equipment during work. During the cutting process, a lot of dust and sand are released, and stones can also break off. To avoid injury or health problems, use the following equipment:

protective glasses;
respirator;
gloves;
closed clothes.

In addition to protective equipment, it is very important to follow safety rules:

load-bearing walls are a risk zone in panel-type houses (it is not always possible to ditch them);
deformation is strictly prohibited reinforcement cage reinforced concrete structures;
in concrete walls, it is advisable to groove the walls not deeply and in a vertical direction;
you should not carry out any operations in walls with deformed reinforcement, as this will only increase the risk of collapse;
pay attention to electrical wiring.

Pipe laying

After the internal filling has been removed from the grooves of the groove, you should make sure that there are no extra protrusions left in the cavity that will interfere with the installation of the pipe. Having completed cleaning the canal, you can begin the final stages.

All pipes are placed in a special foam corrugation. Such precautions will allow you to avoid getting the wall wet in the event of leaks, and reduce the effects of moisture on the base.

The corrugation also eliminates the compression and expansion of the pipe when the temperature changes. The pipes are fixed inside the frame using metal punched tape, which is screwed to the surface of the walls with self-tapping screws.

After making sure that the fixation is secure and that there are no protruding parts, the groove is puttied.

Grilling walls for pipes is a necessary part of the work when laying a hidden water supply system. You can camouflage straight sections, monolithically welded and semi-demountable units of all types of pipes in the wall.

The need for wall gating

Masking heating pipes is irrelevant: the open surface gives off heat. The desire to hide unsightly components in the thickness of the material arises when installing water supply and sewerage systems. This technique expands decorative possibilities for further finishing of the premises and reduces the risk of mechanical damage to structures. The “invisibility” of pipes visually expands the room, reduces the likelihood of thermal burns on a heated surface and injuries when hitting protruding areas.

Craftsmen recommend masking all types of pipes, except those that also perform decorative functions (for example, copper). If it is not possible to make indentations in existing wall, you can use the technique of creating a fake one: the structure is made of plasterboard. The disadvantage of this technique is the reduction in the area of the room, which, as a rule, does not have a large footage.

Elastic pipes in a groove

Requirements for hidden communications

The rules for hidden pipe laying are prescribed in regulatory documents. Before choosing a technique for how to groove a wall for pipes, it is worth familiarizing yourself with the SNiPs on this issue. Requirements and prohibitions:

It is unacceptable to groove load-bearing walls under the pipes, as this work affects the stability of the entire building. Before planning the water supply layout, you must familiarize yourself with project documentation specific building.
Only pipes connected using monolithic welding or soldering techniques are laid into the thickness of the wall. For structures based on collapsible or semi-demountable reinforcement, it is necessary to ensure access to all nodes. This requirement is met by organizing inspection hatches and removable panels.
When laying water pipes from metal or metal-plastic structures it is necessary to take into account the laying diagram electrical networks. Preliminary “ringing” of the walls with special equipment will protect you from unpleasant surprises. During gating in the area of possible passage of cables and hidden wiring, the work area must be de-energized.
The size of the groove is determined taking into account the direction of wiring and the coefficient of linear expansion of the specific material used. It is minimal metal pipes and aluminum-reinforced polymer samples. Polypropylene pipe in the groove it expands both across and along. The channel must be designed for such an increase. For every 3 meters of communications carrying hot media, one compensating junction must be organized. Such knots are made in “pockets” or a wide groove. In the absence of the necessary space, the expanding pipe will deform the channel wall: the decorative finishing area will quickly become unusable.
The pipe in the groove is secured with clamps. Even with maximum bending, it should not touch the channel walls: neglect of this point will lead to the appearance of extraneous noise during operation of the system. In order to prevent knocking and to maintain the maximum temperature of the conductive medium, hot water pipes inside the grooves can be wrapped with a heat insulator. Professionals often use Energoflex, which is passive to fungal attack and resistant to moisture.
When sealing the groove, the material should not fit tightly to the elbow. The groove is sealed to form an air cavity, and is not filled with the composition.
A layout of the plumbing, which indicates the agreed entry and exit points of the system into public sewers, should be kept in case it is necessary to quickly locate pipes in the thickness of the wall. If the work is done well, it will be impossible to do this visually.

Scoring walls for pipes

Pipe laying stages

The hidden pipe laying technique includes several stages, each of which is necessary:

developing a wiring diagram, clarifying all the circumstances and creating a plan;
gating for pipes;
cleaning and strengthening the created channel;
laying and installation of pipes;
securing the knees inside the channel plastic clamps;
connecting system inputs and outputs;
test start-up of communications and tightness control;
masking the cavity and creating inspection holes;
decorative finishing walls

Equipment and tools

When deciding how to groove a wall for a pipe, you need to find out the characteristics: material, density, composition of mixtures. Grilling is performed:

manually with a hammer and chisel;
grinder;
impact drill or a hammer drill;
with a special wall cutter.

The first method is the most labor-intensive, it is only suitable for sufficiently soft walls, not containing reinforcing inserts. Manually chipping dense concrete will take a lot of time and effort. The advantage of technology is the accuracy of the work.

Working with an angle grinder is complicated by the need to control the pressure on the tool: creating a uniform depth throughout the entire length of work is problematic. Detailed finishing and leveling are carried out with a chisel. The grinder reduces the time spent on creating the main track and gives a fairly even cutting line for the material.

Dots are punched into the material using a drill or punch. The distance between them should be 1-2 cm. Then the recesses are deepened and combined with a spatula-shaped attachment.

A wall chaser is a professional tool designed specifically for this type of work. Only he can provide a channel that is even in depth and shape, maximizing the efforts of the master. The lines are cut with a wall chaser, then the middle of the cavity is selected. The quality of work is superior compared to other techniques.

A professional wall chaser, which can be rented if there is no need to purchase, is equipped with a special vacuum cleaner. Using a petal mask does not exclude this. Gouging under pipes is a dusty job. It is worth covering not only all objects in the room where work is being carried out with a film that prevents damage to surfaces, but also upholstered furniture in the neighboring rooms.

Video: rules for wall slitting

Grooving walls for water supply refers to a major renovation of the premises. Using a professional tool will significantly reduce the duration of work and the likelihood of critical errors when laying communications. Preliminary consultation working with a specialist will simplify the task and save time.

July 31, 2016
Specialization: facade finishing, interior finishing, construction of summer houses, garages. Experience of an amateur gardener and gardener. We also have experience in repairing cars and motorcycles. Hobbies: playing the guitar and many other things that I don’t have time for :)

In this article, as you probably guessed, I will tell you in detail how to groove a wall for pipes in several ways.

Tools

The gating process, as well as its speed and labor intensity, depends on the tool with which the work is performed. The most effective tools to perform this operation are the following;

perforator;
Bulgarian;
wall chaser

Of course, you will need some other tools for gating:

roulette;
building level;
pencil;
a device for detecting hidden wiring (if there is no diagram of its location).

After preparing all these tools, you can start working.