How to make chimney pipe insulation - proven and reliable options. Insulation for chimney pipes How to isolate the ceiling from the pipe

Stove heating is not at all uncommon in private construction, because the gas pipeline does not always reach places quite remote from the city, not to mention centralized heating. But even with a heating system with a gas or solid fuel boiler, many homeowners do not deny themselves the pleasure of making a fireplace in their home. These works are associated with the need to bring the chimney through the roof and install a pipe.

In order for the stove or fireplace not to create problems during operation, it is necessary to insulate the chimney (chimney).

Why is chimney insulation necessary?

The flue system is constantly exposed to high temperatures. It is also affected by chemically active substances and various external factors. As a result, the integrity of the chimney is threatened, the efficiency of its operation is reduced, and prerequisites for shrinkage of the walls of the house appear.

Cracks or gaps in the surface can cause poor traction and, as a result, carbon monoxide poisoning may occur. Not uncommon and cases of fires due to ignition of soot.

In order to safely and efficiently operate the chimney, as well as extend its service life, several operations must be performed. One of them is the insulation of the chimney.

What you need to know before insulating a chimney pipe
- To begin with, it is important to determine the optimal outlet location and the height of the chimney - two important conditions for good draft.
- For roofs made of combustible materials such as ondulin or roofing felt, it is necessary to take care of a spark arrester made of fine-mesh metal mesh.
- In places where a brick chimney passes through the ceiling, when installing it, it is necessary to fluff with a thickness of one or one and a half bricks.
- In order to avoid fire hazard situations between the rafter system, ceiling or other combustible structures and the chimney, leave a gap of at least 25 cm.
- The ceiling and the upper ceiling of the fireplace or stove for fire fighting purposes are also separated by space:
- for metal - the minimum clearance is 1.5 m;
- brick, having a two-row overlap - keep a distance of at least 0.5 m;
- for products equipped with a three-row overlap, the minimum distance is 0.25 m if the ceiling above the heating equipment is finished with non-combustible chimney materials.
Isolation methods

Chimney insulation allows you to protect it from two main damaging effects:
- overheating of structures;
- leaks through joints.
That is why we will focus on
- isolation of the chimney on the roof from water;
- fireproof thermal insulation of the chimney.
As a rule, carry out complex isolation. At the same time, in fact, in addition to solving only the main problems, the operating conditions of the smoke exhaust system are also improved. For example,
- protection of the chimney from rain will prevent rotting of the wooden elements of the truss structure, ceilings, and avoid damage when wet;
- non-combustible chimney materials used in the thermal insulation of the smoke channel that runs through the cold attic, not only reduce the likelihood of overheating of fire hazardous wood elements, but also minimize the risk of condensation. And this is fraught with many complications: excessive soot deposition, corrosion or even its destruction.
In modern construction, brick or metal chimneys are most often installed. The choice of insulation method is mainly determined by the material of the chimneys.

How to insulate chimneys

Fire insulation
- The most effective and simple, although perhaps not exactly the cheapest option is to install a ceramic or steel sandwich chimney. The internal channel of this design, through which smoke is removed, is made of heat-resistant material and insulated with basalt, stone or mineral wool, completely providing non-combustible insulation for pipes. For the device of the outer layer of the prefabricated structure, heat-resistant material was also used - steel or ready-made expanded clay concrete blocks. It is equipped with additional elements necessary for installation, revision and maintenance of the chimney.
- Another option for thermal insulation is a brick chimney. This material has low thermal conductivity, so the walls lined with it do not overheat to a dangerous state. For such a channel, there is no need for additional warming measures. It is enough to competently perform fire-prevention cutting of the chimney, as well as ceilings.
On a note
The design of the chimney can be facilitated by finishing the brick structure with a metal or ceramic pipe. Then, for their thermal insulation, a technology is used, which will be described below. This approach also saves money.

Waterproofing

The waterproofing technology is mainly chosen depending on the shape of the chimney and the roofing material. For example, for products with a round section, a roof cut made of metal or polymers is required, with a rectangular section, a metal apron is used, as well as adjoining strips.

It should be borne in mind that the larger the pipe cross-section and the distance to the ridge beam, the more difficult the operating conditions will be. The greater volume of water from precipitation and the excessive load from accumulated snow in winter create an increased risk of leaks. Accordingly, increased requirements are placed on waterproofing in this case.

How to properly insulate chimneys

We will analyze various insulation options for chimneys, how and with what to isolate.

Plastering a brick pipe

The most affordable option for pipe insulation through the roof , say, in the bath - plastering. To do this, use solutions of cement or cement with the addition of lime. As an option for a solution from 1 bag (25 kg) of cement, the following materials are taken (in buckets):
- water (5),
- slaked lime (2),
- sand, it can also be mixed with slag chips (10).
The resulting composition at high outside temperature seizes within one to two hours, in cool weather - in 5 hours. Therefore, it is recommended to prepare a solution for plastering in parts.

To make the layer of plaster not too thick, you first need to close up the cracks. Then, after leveling the differences on the surface of the wall, they are covered with a reinforcing mesh.

The plaster is applied in 2 layers.
- For the first, the solution is more liquid and resembles sour cream in consistency. The first layer is applied by spraying:

The surface of the wall is cleaned of dust, then slightly moistened.
The solution is taken on a trowel (trowel), then thrown onto the prepared surface. The resulting layer is uneven, and this is exactly what is needed for better adhesion between layers.

The second layer is thicker. It is applied with a trowel over the entire surface of the channel, from the very beginning to the end.

Sheathing with asbestos-cement sheets

This method allows you to save twice as much heat. Its essence is in the decoration of the brick walls of the channel with asbestos-cement slabs. Sticking is performed on a plastering solution, which is prepared according to the above technology.

After reinforcing the surface with a metal mesh, the first layer of plaster is applied by spraying.
A second layer is applied to the dried first layer and asbestos-cement sheets, cut to the appropriate sizes, are glued onto it.

On a note

Given the lack of environmental friendliness of asbestos, this method of chimney thermal insulation is more suitable for cold attics. It allows you to partially balance the thermal regime inside and outside the pipe, which significantly reduces the formation of condensate, as well as improves fire protection.

Sheet iron can be used to finish brick structures. Such sheathing is performed on a layer of insulation.

Creating an insulating casing

A single metal pipe not protected by insulation is the most dangerous option in terms of fire. In addition, it does not retain heat well, given the high thermal conductivity of the metal. Between it and structures made of wood and plastic, you need to keep a distance of at least 60 cm. But even then you can get burned if you accidentally touch it. Therefore, the issue of isolation still remains relevant.

The simplest method of isolation in such a case is the creation of a multilayer sandwich structure.

The overlapping chimney is wrapped with mats of basalt non-combustible wool, which are thinner than 50 mm. The melting point of this insulation is close to 1000˚, which is much higher than the temperature of the smoke.
A knitting steel wire is laid over the thermal insulation and fixed.

Then plaster is applied according to the technology described above, using a cement-lime or clay-sand mortar.
Instead of plaster, you can use a casing made of sheet iron. The sheet must have a width of at least 1 m. The metal blank is rolled up along the diameter of the pipe with a layer of insulation and riveted along the line connecting the edges. The corners are rounded by hand or rolled rollers are used for this.

Foreword. Consider how to insulate the pipe in the bath yourself. There are two solutions here. The first is to make sandwich pipes for a stove in a bath with your own hands and a more practical, but expensive way is to buy a finished sandwich chimney and install it. How to properly insulate the pipe in the bath is an important issue, as it affects the life of the chimney and fire safety, minimizing the risk of fire in the ceiling.

Thermal insulation of an iron chimney in a bath has important goals. The first is to ensure the fire safety of the premises and increase the efficiency of the sauna stove. Secondly, the insulated chimney of the boiler warms up much faster, so the condensate inside the pipe does not have time to accumulate and does not lead to rapid corrosion of the metal. We will tell you how to insulate the pipe in the bath yourself and carry out its installation below.

Do I need to insulate the chimney pipe in the bath

The chimney in the bath should be made of two parts. The lower part - a chimney without insulation, will give off its heat in the steam room, warming up the room faster. For the device of the lower part of the chimney, you should buy a finished pipe of a suitable diameter made of galvanized or stainless steel. Despite the fact that stainless steel is more expensive, it looks aesthetically pleasing and will last many times longer than galvanized steel.

Pipes without insulation can be quickly replaced if necessary, without violating the thermal insulation of the chimney passing through the ceiling. The connection of the lower non-insulated chimney and the insulated sandwich pipe must be made before overlapping the ceiling using a starting sandwich. The use of sandwich pipes will protect the overheating of the steam room ceiling and reduce the amount of condensate inside the pipe.

How to insulate a pipe in a bath with your own hands

The upper part of the chimney passing through the ceiling should be made of sandwich pipes. Their advantage is that there is already a layer of thermal insulation inside, as a result of which the outer pipe does not heat up and significantly reduces the risk of fire of wooden floors. In addition, during the cold season, the heat-insulating layer prevents the formation of condensate in the metal chimney, reducing the risk of pipe corrosion in the future.

To connect a single-wall and a sandwich pipe, an adapter (starter sandwich) is used. If you save money and do not buy a starter sandwich, then basalt insulation can crumble from the pipe during its operation. In addition, the characteristics of mineral wool are such that it absorbs moisture from the air. This can lead to corrosion of the metal pipes of the chimney, since the steam room has high humidity.

If you decide to save money and you have enough basalt insulation left, after insulating the boiler room and there are several sheets of steel, then you can make an insulated chimney for a bath yourself. First, calculate the required height of the future chimney, as well as the diameter of the starting chimney of the furnace, so that the pipe fits in size. So, we proceed to the insulation and installation of chimney pipes.

Making insulated pipes with your own hands:

1 . to begin with, we cut out two rectangles of the desired size from a sheet of metal and fold them into cylinders;

2 . we wrap a pipe of a smaller diameter with non-combustible insulation, put a pipe of a larger diameter on top;

3 . we fasten the prepared pipe from above and below with a clamp, we make the required number of pipes;

4 . to the end of one pipe we weld a strip around the circumference from the end to protect the insulation from precipitation.

Before installing the pipes in the bath, you should prepare - in the ceiling above the stove, you need to make a hole 20 mm larger than the diameter of the chimney, and another hole is also made in the roof. Then a square is cut out of a sheet of metal, it should completely cover the hole in the ceiling. A hole equal to the diameter of the pipe is cut inside the square, and holes for self-tapping screws are drilled along the edges of the metal sheet.

Do-it-yourself installation of an insulated pipe in a bath

We connect the pipes made earlier. We put an uninsulated pipe on the chimney of the sauna stove and put a metal sheet with a hole on it, so that it can then be fixed on the ceiling of the steam room from the inside. Before the ceiling, it is necessary to put a starting sandwich on the pipe and continue to put on the already insulated pipes. We attach a galvanized sheet to the ceiling with self-tapping screws, which you put on earlier on the chimney pipe.

The technology for installing a chimney from prefabricated sandwich pipes is no different from that described above. Despite the high cost of factory sandwich pipes and the necessary components for the chimney. Finished products will look more aesthetically pleasing and will last much longer, especially the stainless steel chimney in the steam room. A cap should be put on the top of the chimney to protect the chimney and stove from rain and snow.

How to insulate an attic near a pipe in a bath

You can warm the attic near the chimney beautifully

Do-it-yourself installation of an insulated chimney in the bathhouse is done, it remains only to beautifully insulate the attic in the bathhouse near the chimney. Expanded clay or clay is poured onto a sheet of metal from the side of the attic of the bath between the chimney and the floor boards. Styrofoam and other combustible heaters are not suitable for this purpose. The most inexpensive way to insulate the attic of the bath at the chimney pipe is to use expanded clay, cellular concrete or clay.

With self-insulation of the pipe in the bath, many focus on their budget, and someone, first of all, cares about the practicality and attractive appearance of the entire structure. How to insulate the chimney pipe in the bath you already know. Additionally, you can make sure that you can make an insulated chimney in the bath yourself by watching the video posted below with instructions for installing sandwich pipes in the steam room.

Video. How and with what to insulate the chimney pipe in the bath

Having your own country house, you need to take care of warming up the rooms in the cold season. A stove or other heating system needs a chimney to be installed. The smoke exhaust pipe is the main element of the heat supply communications. For its effective functioning, it is necessary to insulate the chimney from the outside.

The relevance of thermal insulation

Moisture and smoke generated during the combustion of fuel are aggressive factors affecting the brick chimney. The temperature difference in the cold season and the accumulated moisture settling on the walls fills the microcracks with water, and the stone structure collapses from the inside. Small ice crystals press from the inside and destroy it. An insulated chimney allows this to be excluded.
During combustion, condensate is formed on the surface of the flue, which includes a chemical series of oxides. Interacting, the elements form weak acids (carbonic, sulfuric, etc.) that can destroy the metal surface. It is for this reason that chimney insulation is necessary.
Proper installation of thermal insulation helps prevent fires inside the premises and will not allow the roof to ignite. Well-heated chimney pipes improve draft in the fireplace, boiler and stove, there is less tar and burning deposits in it. The efficiency of the heating unit is significantly increased.

Positive factors of an insulated chimney

Before answering the question - how to insulate the pipe, it is necessary to highlight the advantages of an insulated chimney.
An insulated gas outlet provides protection for the heating system from the effects of the external environment and combustion products. Of course, thermal insulation cannot completely protect the structure from destruction, but it will extend its service life. This happens due to the following factors:

Pipe insulation allows maintaining thermal balance in the middle of the structure, excluding the possibility of aggressive acids and condensate falling onto the walls. The products of combustion are completely volatilized together with the smoke stream.
Chimney insulation minimizes the possibility of a temperature difference between the cooled flue and hot steam.
Increased energy-saving properties that contribute to fuel economy.
The strength of the steam outlet structure increases due to the reinforcing frame.

Properly selected chimney insulation increases the frost-resistant properties of the system, ensures long-term preservation of the appearance and increases the service life, which is very important.

The choice of material for thermal insulation

The main question of the owners of country houses with an autonomous heating system is how to insulate the chimney. In order to reliably insulate the outlets for the furnace or boiler, materials with a high degree of thermal insulation are used to ensure the thermal balance of the chimney on the roof.

Basalt insulation

Relevant for the insulation of the chimney mineral wool or basalt. Insulation is obtained from a melt of volcanic rock - gabbo-basalt. It is converted into fibers, due to which the insulating material has the advantages of:

retains up to 95% of heat;
characterized by good permeability of the outgoing steam;
different chemical and corrosion resistance;
prevents the growth of fungus and mold on the surface of the chimney on the roof;
vibration and heat resistant;
made of ecological materials;
not subject to destruction under the influence of ultraviolet radiation.

Stainless steel casing

Metal "armor" in the form of a pipe made of stainless steel is used as an option for insulation. It is able to provide full protection against mechanical damage, moisture and other aggressive factors.
The casing for the chimney is mounted on a pipe on the roof. The annular space is filled with basalt wool, covered with insulation from the outside, 5 cm thick. An asbestos chimney can be wrapped with this insulation.

Wooden shields

Wooden shields are considered one of the simplest options for insulating a chimney pipe. Thermal insulation is made in the form of a wooden frame from plates of the appropriate size. On top of it, slate or other flooring is fixed, from which the roof of the dwelling is made.
After the pipe is completely covered with wood, the empty cavity is filled with felt, slag, sand, mineral wool. Frame seams are necessarily covered with a waterproofing compound.

Slag-reinforced concrete insulation slabs

Insulation of the chimney in a private house using iron and cinder concrete slabs provides the smallest distance between the joints on the structure. The space inside and the corners are reinforced with mesh or wire, gypsum, clay and sand are poured in the form of a solution. Plaster is applied over the tiled insulation.

The specifics of insulation work

When insulating the chimney with your own hands, we take into account that during the operation of the heating boiler, the temperature in the smoke exhaust duct can reach 200 -300 degrees.

As insulation, it is better to choose a material with high heat-resistant properties: glass wool, mineral wool, basalt.

In the building materials market, thermal insulation is sold in the form of finished cylinders with a special foil screen. With their help, they make out the gas duct and adjacent roof elements - protecting them from fire and cold air. Tubular structures are sold in different diameters, which allows you to wrap different-sized smoke outlets.

Regulatory requirements for the installation of thermal insulation

Before insulating the chimney pipe, you must make sure that it is installed correctly.

The flue is carried out in accordance with the technological standards specified in GOST 52953-2008

The combustion products outlet pipe must be 5 m high. This indicator ensures optimal draft in the heating system.
A distance of at least 250 mm is required between the roof slab and the outer element of the boiler room.
If the building is covered with combustible materials, in particular, slate, roofing material, ondulin, then the insulated smoke exhaust structure must be equipped with a spark arrester.

After making sure that the system is installed correctly, you can proceed to subsequent work on winding with thermal insulation.

The main methods of insulation

The metal chimney pipe is insulated using various methods.

Steel chimney insulation technique

The chimney is insulated using a special solution. The composition is prepared from a dry mixture and water. The solution is applied with a spatula to the surface, spreading over the entire area. Then a fiberglass reinforcing frame is fixed on it, on which plaster is applied.

Gas boiler chimney insulation

Insulation for pipes of a gas boiler must have a number of increased heat-insulating and heat-resistant qualities.

Sandwich structures block condensate from settling on the surface, saving energy at the same time.

Sandwich chimney consists of a layer of mineral wool and two metal pipes. The upper element, with a large diameter, is the main sleeve, the smaller one is part of the steam outlet channel.
How to isolate such a chimney pipe with your own hands? You must follow the recommendations:

In the roof of the roof and ceilings, holes are made with a diameter of 25 cm larger than the chimney channel.
At this stage, it is necessary to insulate the chimney pipe with a layer of basalt wool. The thickness of the winding must be at least 5 cm.
The insulation around the pipe is fixed with steel wire.
A larger casing is put on top.

Upon completion of the work, the chimney is connected to a heating source and the surrounding riser is filled with expanded clay, clay or asbestos.

Sauna chimneys

Insulation of the chimney in the bath is aimed at improving the heat transfer of the heating source, which is a stone stove.

You can isolate the chimney in the steam room using the following options:

thermal insulation - a material made of foamed polyethylene, hidden between sheets of foil. Insulation rolls with a thickness of 2 - 10 mm are offered on the market. The foil surface reduces overheating of the pipe. The insulation is wrapped around the chimney, fixed with wire or metallized tape;
Filgoizol consists of two balls: a foil that saves more than 90% of the heat in the room and a heat insulator. The material is used to cover the walls and ceilings of the sauna, providing the effect of a thermos;
sandwich pipe, consisting of several sections. This option is suitable for saunas and baths with an iron stove.

To insulate a metal pipe means to ensure the optimal functioning of the heating system. Proper installation of chimney insulation with your own hands allows you to increase the operational life of the structure and the heat generator, and also prevents fire.

Types of insulation of chimney structures
Options for fire insulation of smoke extraction systems
Chimney waterproofing methods
Chimney pipe insulation
Insulating materials for bath pipes
Plastering a pipe made of bricks
The use of asbestos-cement sheets
Insulation of single metal pipes
Floor insulation

When building your own home ownership, as a rule, they equip a fireplace or stove. Therefore, the problem of chimney outlet is so relevant. Properly and reliably made insulation is important for a chimney, otherwise it is impossible to be sure about the fire safety and comfortable stay of family members in the house.

If the stove has already been laid out, and the smoke exhaust structure rises above the roof of the building, this does not mean that the work on its arrangement has been successfully completed. Before using the heating unit, you still need to decide how to insulate the chimney pipe on the roof and, as a result, protect your home from leaks and fire.

It is advisable to think about this problem before the furnace design is drawn up and then the insulation will turn out to be more reliable. As for the previously built chimney, such work is almost always associated with changes made to the design of floors and roofs. Regardless of the decision how to insulate the chimney on the roof, all the expenses incurred will be offset by a sense of security, and hence comfort.

To insulate the pipe for the furnace should be from negative factors:

from possible overheating of the chimney structure;
from leaks that occur at the joints.

Therefore, when deciding how to wrap the chimney pipe, increased attention should be paid to fireproof thermal insulation and waterproofing. Experts recommend to carry out isolation measures in a complex manner. This will help solve not only the above problems, but also improve the operating conditions of the furnace unit.

For example, if a chimney running through an unheated attic space is thermally insulated, the possibility of overheating of wooden roofing elements is reduced and the risk of condensation, which leads to corrosion, increased soot deposits or pipe destruction, is reduced. Waterproofing the smoke exhaust structure will protect the truss system and ceilings from rotting.

Options for fire insulation of smoke extraction systems

The simplest and most reliable, but expensive way to insulate a chimney is to install a sandwich chimney made of metal or ceramic.

In such designs, the inner pipe, designed to remove smoke, is made of heat-resistant steel or ceramics, while non-combustible materials are used for its thermal insulation - mineral, stone or basalt wool (see also: "Types of heat-resistant pipes, advantages, technical characteristics"). The outer part of the chimney sandwich is made of steel or expanded clay concrete blocks.

Kits for prefabricated chimneys include elements for fixing the structure, revision, maintenance and for connecting heating units. Their installation is simple, but you still need to follow the instructions so that safety is fully ensured.

There is another option used when installing a furnace unit - the construction of a brick chimney. Due to the low degree of thermal conductivity of bricks, its walls will not heat up to extremely high temperatures and, as a result, additional measures related to its insulation will not be required (in more detail: “How to insulate a chimney, what kind of insulation to use”). It will only be necessary to correctly perform the fire-prevention cutting of floors and roofs.

In order to save money and reduce weight, sometimes the construction of a brick chimney is completed with the installation of a ceramic or metal pipe. In this case, thermal insulation is produced according to the technology described below.

When such work is performed for single pipes, boxes made of non-combustible materials can be used. Chimneys of this type are allowed to operate without thermal insulation, but fire-prevention cutting is required in accordance with the rules.

Chimney waterproofing methods

Waterproofing of chimneys should be created in the place where they are displayed on the roof. The further they are located from the ridge, and the larger the pipe, the more difficult the operating conditions will be.

Atmospheric precipitation in the case when the insulation of the chimney pipe is insufficient, begins to penetrate inside the building. As a result, leaks occur, rot and the floors are destroyed.

The method of waterproofing, as a rule, depends on the shape of the pipe and the material from which the roofing is made. For round products, either metal or polymer cuts are used, and for pipes having a rectangular cross section, aprons and abutments made of metal are used.

Chimney pipe insulation

Before insulating the pipe on the roof, you should make sure that the requirements prescribed in SNiP 2.04.05-91 are met, and if any shortcomings are found, eliminate them:

To ensure the required traction force and prevent the furnace gases from exceeding the temperature, the height of the pipe should start from 5 meters.
When the roofing is made of roofing material, slate or other combustible material, a spark arrester is installed on top of the pipe, which is a metal mesh with small cells.
Between combustible elements, such as ceilings, rafters and walls, and the chimney, a gap of at least 25 centimeters must be left.
From the upper ceiling of the stove to the ceiling, a fire-prevention distance is maintained. For metal units, it is at least 150 centimeters, for brick ovens with a two-row overlap -50 centimeters, with a three-row overlap -25 centimeters, provided that the ceiling surface above the heater is finished with non-combustible materials.

In the place where the brick chimney crosses the ceiling, fluff is arranged with a thickness of 1 - 1.5 bricks.

Insulating materials for bath pipes

Since bath buildings are often built of wood, these objects need to be insulated from chimneys, stoves, ceilings, walls, as this material is highly flammable. It is necessary to think about how to secure the pipe in the bath by making the thermal insulation of the smoke exhaust structure so that it cools more slowly and condensate does not collect on it. See also: "How and with what to isolate the chimney pipe - the best time-tested solutions."

It will be a mistake to decide to isolate the pipe in the bath by attaching a sheet of iron to the ceiling, since it gets very hot. As an option, how to overlay the chimney, use refractory red brick, but in this case, you need to strengthen the foundation.

When solving the problem of how to wrap a metal chimney pipe in a bath, experts distinguish foil and thermal insulation.

Plastering a pipe made of bricks

The outer surface of brick pipes heats up slightly, so they are plastered to improve operating conditions and extend their service life. The most affordable option for insulating chimneys made of bricks is plastering with mortar using lime and cement. In its composition, instead of sand, you can add slag crumb, previously sifted.

The layer of plaster, when there are a lot of irregularities on the pipe, turns out to be quite thick, therefore, at first it is better to repair all the existing differences and cracks on the surface with a solution, and then cover it with a reinforcing mesh.

Plastering is performed in two layers, using the entire pipe. The first time the solution is brought to the density of sour cream and applied by spraying and not leveled. For the next layer, the composition is made thicker. It is applied with a trowel and then rubbed until a smooth surface is obtained.

The use of asbestos-cement sheets

Such a method of insulation for chimney pipes made of bricks, such as lining pipes with asbestos-cement materials, is several times superior to plastering in terms of heat saving. Asbestos-cement slabs are glued to the outer surface using a cement-lime mortar.

After preparing the composition, the smoke-removing structure is reinforced with a mesh, and the first layer is applied by spraying. When it dries, asbestos-cement slabs are cut according to the size of the pipe. The next layer of the mixture is applied to the pieces of insulation and attached to the surface of the chimney.

But this method has a big drawback - asbestos contains carcinogens and therefore it cannot be used in residential areas.

Insulation of single metal pipes

The most dangerous option for arranging a chimney in terms of fire safety is a pipe made of metal products, which is not protected by a heat insulator. The distance between it and wooden or plastic elements should be at least 60 centimeters.

But even the presence of such a gap is not able to protect against burns in case of accidental contact - for this reason, it is advisable to insulate the pipe until problems arise.

When deciding how to wrap a pipe in a bath or house, if it is single, it is the use of non-combustible insulation, for example, basalt wool, which is protected from above with metal or plaster. This heat insulator has a melting point of 1000 degrees.

The sequence of actions in this case is as follows:

Mats of 5 cm thickness, consisting of basalt wool, are overlapped around the pipe and fixed with steel wire.
They wrap the heat-insulated chimney with a reinforcing mesh, fix it and apply plaster on top in two layers.
Instead of plastering, you can use sheet iron, which is rolled up and riveted at the point where the edges meet.

Floor insulation

There is a certain procedure for insulating the chimney pipe in the ceiling:

In the ceilings and the roof, holes are made for laying a smoke exhaust structure so that a distance of at least 25-35 centimeters remains from their edge to the pipe walls (read: “How and with what to close the gap between the pipe and the roof - different options for different materials”).
The edges of the holes are covered with metal or asbestos-cement sheets or a heat-insulating box is equipped.
The space near the pipes is densely filled with heat-insulating wool.
Wooden structures located near the chimney passages are covered with special flame retardant compounds.

Having figured out how to insulate and how to wrap a pipe in a bath or house, you can do this work without much effort.

But even a well-insulated chimney should be operated correctly:

clean soot at least 3 times a year;
remove ashes from the stove in a timely manner;
do not burn foreign objects and materials in the unit.

Sauna chimney
Winding of a metal chimney
Insulation of a metal chimney
Box manufacturing
Chimney installation
Chimney fixture
Replacing a brick pipe with a metal one

The article will discuss how and with what to isolate the chimney pipe. Several practical methods are presented.

Chimney pipe insulation is required to prevent leaks and overheating. Simply put, it allows you to increase the life of the structure. Experts recommend performing complex work, which includes hydro and fire insulation.

Sauna chimney

When performing insulation of a chimney in a bath, the safety of people should be a priority. The main threat indoors comes from open flames. Therefore, it must be protected, having previously made the overlap resistant to high temperatures.

Basically, baths are built from wood, a highly flammable material. A very common misconception is the belief that sheeting the ceiling with metal sheets is sufficient. But in reality, such protection is not enough. After all, the upholstery will still heat up, which can lead to ignition. A popular solution to the problem is to insulate the chimney with red brick. But this is not suitable for every bath design.

There are currently two good options for chimney insulation:

Folgoizol. A bath with such insulation will not lose heat, everything works like a thermos. At the same time, it warms up quite quickly, keeping the temperature for a long time.
Teploizol. The material is used for winding the chimney.

A popular solution is the use of sandwich pipes, which demonstrate a high degree of safety. The construction of the insulation consists of several sections that can be easily combined with each other. This option is also suitable for saunas with a metal stove.

If the question is how to insulate the chimney pipe in a traditional Russian bath, then the best solution would be to use red brick. This material is resistant to fire, able to retain heat for a long time. See also: "How and how to make pipe insulation in a bath - materials and methods."

It is important to responsibly approach the brickwork in the bath. The duration of the operation of the building directly depends on its quality. You can not save on materials or work. After all, the need for repairs in the future will be associated with much higher costs.

Winding of a metal chimney

“How to wrap a metal chimney pipe in a bath?” - a popular question among gardeners. After all, there are many materials used for this cottage. The absence of combustible substances in the coating is a paramount nuance that must be taken into account. It is preferable to use a quality material that has all the necessary properties. It must also be completely safe to use.

The most common materials:

glass wool;
Fibrous building materials;
Mineral wool.

Insulation of a metal chimney

Insulation of chimneys of a metal chimney is a separate topic for discussion. After all, it contains a number of nuances, which will be discussed later. This is a very difficult task, so it is recommended to perform it during the construction of the bath. It is more difficult to work with a finished building, because it may require rebuilding the roof.

A good solution would be to use sandwich pipes. This design is easy to manufacture, in addition, the cost of specialists will be reduced. However, the material itself does not belong to the budget. But the service life and quality fully justify its cost. Sandwich pipes are additionally insulated with mineral wool.

How to isolate the chimney, everyone decides for himself. It is important to remember that such insulation allows you to protect the chimney from the negative effects of combustion products, as well as moisture. If you do not worry about insulation in time, then there is a risk of destruction of the bath. After all, acid-enhanced condensate slowly destroys building materials. It poses the greatest threat in the spring, when the pipe begins to thaw (in more detail: “Why does condensate appear in the chimney pipe and how to get rid of it”).

Box manufacturing

About how to insulate the iron pipe of the chimney, it was said earlier. Now you can move on to the next step. Many people think that making a chimney box is too difficult a task. In reality, this is not so. It is enough to approach the work responsibly, with knowledge of the matter.

Required tools:

Drill;
Scissors for metal;
Compass;
metal sheets;
Self-tapping screws.

Stages of work:

Hole preparation. Along the edges, it is necessary to fix the bars, which will act as a support for the body.
Two blanks are cut from a metal sheet. They are given a U-shape. Then the finished parts are screwed to the ceiling using self-tapping screws.
Again, two blanks are made, but they are already fixed on standing sheets with a small spade.
How is chimney insulation made?

It turns out a solid frame in the ceiling.
Now the bottom is made for the box from a metal sheet. In the center of the workpiece there should be a hole for the chimney, here you need a compass.
The box contains four fasteners of two centimeters. They are cut and bent perpendicular to the bottom.
Walls are attached to the bottom. Now a chimney is inserted into the box, it is additionally fixed with clamps. The voids are filled with an insulating layer.

Chimney installation

Installing a chimney is not as simple a task as it might seem at first glance. There are many nuances that should be taken into account. If the chimney is not installed with sufficient quality, this can lead to property damage, as well as creating discomfort for the people inside, and harming their health.

Stages of work:

The preparatory stage, where a project of work is selected, materials are purchased, and the form of construction is determined. There are straight chimneys, as well as designs with various bends.
Now you can start assembling the chimney. Pipe joints, elbows and tees must be fastened with clamps.
Passing the chimney through the roof using a special tool. To begin with, the level of the slope of the roof is determined, based on the data obtained, a suitable place is selected. It cuts a hole for the workpiece. From above, everything is insulated with a roof cut, and from the inside - with a cover sheet. See also: "How to insulate a chimney pipe - proven and reliable options."
A special apron is fixed on the branch pipe. The pipe is extended to the required dimensions, its top is partially insulated with a special cover in the form of an umbrella. It will prevent atmospheric precipitation from entering the chimney.

Chimney fixture

The workpiece must be brought to the roof through the attic. All cracks, especially voids between the roof and the pipe, are filled with waterproofing. When removing the workpiece, you must remember safety precautions.

An elbow is used to secure the chimney pipe. It is designed to control the vertical arrangement of the structure. To give everything reliability, the pipe is additionally attached to the wall, using suitable brackets. Usually they are included in a ready-made set. They can also be made by hand, it is best to use metal corners as the basis for them.

As soon as the insulating structure is in place and securely fixed, it is necessary to close the chimney pipe with an umbrella. It is designed to protect the structure from precipitation, poplar fluff and fallen leaves.

Replacing a brick pipe with a metal one

If a brick chimney is not enough, it can be further extended with a metal pipe. The task is laborious, but quite realizable. It is important to approach it with all responsibility.

To begin with, a flat steel platform with a pipe is made. Moreover, its diameter should be the same as the diameter of the metal pipe that is planned to be used. The site must be securely fixed. It is fixed with dowels and screws. Sealing will add additional reliability.

Work order:

On the brickwork, you need to mark the points at which the mount will be installed. They can not be placed on the masonry seam. It is advisable to place them closer to the center of the brick, and not on its edge.
Holes are drilled in the marked places to accommodate the dowels. At the same points, holes are made on a flat platform, self-tapping screws will go there.
A refractory sealant is applied to the brick base, then a steel platform is placed there. Self-tapping screws are screwed into the dowels. It is important to monitor the fit and uniformity.
Now it remains to wait for the sealant to dry completely and proceed directly to extending the chimney using a metal pipe.

Important installation details:

If the length of the pipe section above the roof exceeds 1.5 m, it is recommended to equip it with special stretch marks that strengthen the structures (read also: “Methods for installing a chimney on the roof of a house - the advantages and disadvantages of different options”).
It is impossible to install a branch pipe, the length of which from the stove to the head is more than 5 m.
Installing special plugs allows you to get rid of condensate.
The section of the chimney above the roof must be longer than 1.5 m.
Do not narrow the pipe when installing the chimney.
Nearby structures made of flammable materials should not be heated to a temperature of 50 o C.
The chimney must not be placed near electrical wiring.

The decision on how to insulate a metal chimney pipe should be made based on the budget, as well as the needs of the structure.

It is important to approach the task as responsibly as possible, performing work in full compliance with all norms and nuances. Then the insulation of the chimney will last a long time without any complaints.

How is non-combustible thermal insulation of chimneys made

During the construction of many modern houses or country houses, fireplaces or stoves are erected. In this case, the question arises about the exit of the chimney to the roof surface. The roof chimney must be insulated. What is meant by this?

Firstly, the pipe is best taken out in the right place on the roof.
Secondly, the junction of the pipe with the roof must be hermetically sealed in order to prevent possible leakage.
Thirdly, the chimney is usually heated to a very high temperature.

Therefore, it is necessary to protect the combustible roof from possible melting or even ignition.

Choosing the best place for the exit of the pipe to the roof

It is recommended to remove the chimney in the region of the roof ridge. Since the ridge is the least susceptible to moisture stagnation, and the roofing cake in the area of \u200b\u200bthe ridge is usually minimal.

In the presence of a ridge beam, difficulties arise with the removal of the pipe. To maintain the strength of the truss system, it must be constructed without a ridge beam. Or you need to use two beams at the same time, between which the chimney will pass.

Alternatively, you can pass the pipe not through the ridge, but next to it. In this case, the strength of the truss system will not be violated, and the pipe will be on the slope of the roof. It is strongly not recommended to bring the pipe into the roof valley, that is, in the lowest place where the slopes converge together. In this place, the phenomena of stagnation of water and snow are most often observed, which can lead to a leak at the junction of the pipe with the roof. When the stove or fireplace is located away from the desired outlet of the pipe to the roof, a curved chimney elbow is used as an adapter.

Chimney waterproofing

Chimney insulation device

How to fix a pipe on a roof , providing leak protection?

On top of the pipe exit to the roof surface, a drainage gutter made of stainless steel is placed.
Competent thermal insulation of chimneys, what should it be?

It will divert water flowing down the slope from the pipe.
Additionally, waterproofing aprons are used that are installed around the chimney. One part of the apron is adjacent to the pipe, and the other part lies on the roof.
The places of contact of the apron material with the roof are insulated with sealant.
The upper part of the apron must be brought under the roofing material. The sheet of roofing material should overlap the apron to avoid possible leaks.
The bottom of the apron should overlap the roofing material.

Chimney from heat-insulated pipes

Modern chimneys are made from multilayer heat-insulated pipes with an outer layer made of stainless steel. Especially for them, special roofing passages are produced, which are a steel base sheet and an apron cap attached to it. The chimney pipe passes through this apron. The apron is attached to the pipe with a steel clamp having a heat-resistant gasket. Such aprons provide a seal between the roofing material and the pipe.

Roof protection against contact with a hot pipe

The main task facing the builders in the process of bringing the pipe to the roof surface is the fire safety of the house. Cutting the pipe on the roof is of great importance.

According to regulatory documents, the temperature of the heated pipe should not exceed +50 degrees at the point of contact with a combustible roof.

When using a brick pipe, this issue can be solved by increasing the thickness of the pipe walls. The recommended wall thickness is 35-40 centimeters. This thickness of the pipe guarantees the safety of the roof in terms of ignition.

The roofing cake is a layer of successively placed layers:

Roofing pie device

vapor barrier,
insulation,
waterproofing,
roofing material.

It is highly undesirable to violate its integrity, in order to avoid water getting inside the roof, and the gradual destruction of the entire pie.

It is necessary to provide a gap (space) between the chimney and the roof.

For this purpose, an additional box is made from wooden rafters and cross beams, located between the pipe and the roof.

The distance between the walls of the box and the chimney should be about 15 centimeters.
This gap is filled with some non-combustible material.
All components of the roofing pie are cut and fixed with nails or staples to the rafters and cross beams, and the waterproofing is pressed with a crate or counter crate.
If necessary, all suspicious joints can be sealed with sealant.

This will ensure the insulation of the chimney in the ceiling.

Competent waterproofing of the chimney with fire safety of the entire structure and the right choice of the place where the chimney exits to the roof are the main conditions, the fulfillment of which guarantees your home safety and the proper level of comfort.

During the heating process, the liquid that is used as a heat carrier circulates throughout the system. In order not to lose useful heat and avoid excessive overheating of the room, insulation of heating pipelines is carried out.

Such work is necessary in country houses, if the heating pipelines run down the street from the boiler room, or when the boiler is located in the far wing of the building, and the pipes are stretched along cold corridors. This helps to deliver more heat into the room, keeping it along the entire route: from the boiler room to the heating radiators.

Several types of heaters are used as a material, they differ in thermal conductivity and installation methods, and when choosing a material, you need to know at least a little about its qualities.

Foamed polyethylene

This is a flexible insulation, which is produced in the form of pipes of various sizes, with a cut in the middle (this is done for ease of installation).

Mounting

When the pipeline is insulated with this material, pieces of insulation are applied to the pipes along the entire length, and pulled together with construction tape. The joints or joints of pipes must be covered with insulation of a thicker diameter. Therefore, before starting work, you need to roughly calculate the required amount of insulation of different sizes.

The insulation of this brand is very convenient, it can be easily cut, and the remaining pieces can be used elsewhere, making up one long part from several segments.

fiberglass insulation

Such a heater is most in demand among builders. This material has a relatively small weight and is not subject to rotting at all. That is why it is often used to insulate pipes located on the street.

Mounting

During installation, the pipes are wrapped with insulation and fixed with a knitting wire. For additional protection from moisture from the outside, it is tied with roofing felt or building foil.

Basalt wool

These are molded elements of insulation, which are made in the form of plates and cylinders. Such heaters are fireproof, have good strength and do not let moisture through. Its installation is quite simple, as in the case of fiberglass insulation, it is additionally protected with aluminum foil or roofing material.

Styrofoam

Such a heater is made in the form of two shells of different sizes, they are fastened with special grooves, but for the reliability of the connection they must be additionally fixed with special glue or tape.

Mounting

When connected on pipes, the halves of the insulation are interconnected and the two parts are displaced in different directions by several centimeters. The next link is also connected, and the remaining ends are joined together, it turns out a kind of "overlap" of one connection to another, which provides a better bond.

For warming uncomfortable areas and turns, curly shells are used, which are of unequal sizes.

In order to carry out high-quality insulation with this material, it is necessary to calculate in advance the length of the pipeline, the number of joints and bends. This is necessary to purchase the required number of connecting parts.

polyurethane foam

This insulation is applied by spraying. A specially prepared composition is sprayed onto the mounted pipeline. It reliably adheres to the surface and, foaming, forms a dense protective mass with high strength.

Due to the fact that this insulation does not tolerate exposure to sunlight, the insulation of pipes located in the open air with it must be accompanied by their protection: winding with roofing felt or aluminum foil.

For high-quality insulation of pipes, heaters can be combined. For example, in the boiler room and on the street they can be covered with mineral wool or basalt insulation. And in the house there are places for connecting to radiators - with foamed polyethylene, which looks more aesthetically pleasing.

This material, which is used to insulate heating pipelines, will eliminate some of the difficulties that arise during the installation of other heaters.

The bigger, the better…

This slogan refers to the installation of such insulation. It is applied with a sprayer or a conventional brush, and the more layers are applied to the pipe, the better the heat will be retained. And the process itself is much easier than installing other types of insulation. It can be applied without problems both on a smooth pipe located in good accessibility, and on hidden inconvenient areas.

When to Consider Pipe Insulation

It is best to install the insulation in the process of laying pipes and branches in the room. At this stage, it will be easier for you to select the dimensions (when choosing a roll or tubular insulation), and as a result, there will be less waste, and this, accordingly, will save money.

Insulation repair

With all the positive qualities of all types of materials, it would be useful to carry out a routine inspection of the entire heating line before the onset of the winter season. In order to avoid trouble in the future, the places of the insulation, which, due to any circumstances, have become unusable, must be replaced.