Preface. Let's look at how to insulate a pipe in a bathhouse yourself. There are two solutions here. The first is to make sandwich pipes for a stove in a bathhouse with your own hands, and a more practical, but expensive way is to buy a ready-made sandwich chimney and install it. How to properly insulate a pipe in a bathhouse important question, as it affects the service life of the chimney and fire safety, minimizing the risk of fire in the ceiling.
Thermal insulation of an iron chimney in a bathhouse serves important purposes. The first is to ensure fire safety of the premises and increase efficiency sauna stove. Secondly, the insulated chimney of the boiler warms up much faster, so condensation inside the pipe does not have time to accumulate and does not lead to rapid corrosion of the metal. We will tell you further about how to insulate a pipe in a bathhouse yourself and carry out its installation.
Is it necessary to insulate the chimney pipe in a bathhouse?
The chimney in the bathhouse 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. To install the lower part of the chimney, you should buy a ready-made pipe of a suitable diameter made of galvanized or of 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 compromising 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 covering 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 condensation inside the pipe.
How to insulate a pipe in a bathhouse 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 outer pipe does not heat up and significantly reduces the risk of fire in wooden floors. In addition, during the cold season, the thermal insulation layer prevents the formation of condensation in the metal chimney, reducing the risk of pipe corrosion in the future.
An adapter (starting sandwich) is used to connect a single-wall pipe and a sandwich pipe. If you save money and don’t buy a starter sandwich, the basalt insulation may 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 chimney pipes, since the steam room has high humidity.
If you decide to save money and you have enough basalt thermal insulation left after insulating the boiler room and you have several sheets of steel, then you can make your own insulated chimney for a bathhouse. First, calculate the required height of the future chimney, as well as the diameter of the starting chimney of the stove so that the pipe fits. So, let's start insulating and installing chimney pipes.
Making insulated pipes with your own hands:
1 . First, cut two rectangles from a sheet of metal the right size and roll them into cylinders;
2 . we wrap a pipe of a smaller diameter with non-flammable insulation, and put a pipe of a larger diameter on top;
3 . we fasten the prepared pipe from above and below with a clamp, we make required amount pipes;
4 . We weld a strip around the circumference to the end of one pipe to protect the insulation from precipitation.
Before installing pipes in the bathhouse, 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 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 bathhouse
We connect the previously made pipes together. 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 to the ceiling of the steam room from the inside. In front of the ceiling, you need to put a starter sandwich on the pipe and then continue to put on the already insulated pipes. We attach the galvanized sheet to the ceiling with self-tapping screws, which you previously placed on the chimney pipe.
The technology for installing a chimney from ready-made sandwich pipes is no different from that described above. Despite the high cost of factory-made sandwich pipes and the necessary components for the chimney. The 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 placed at 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 bathhouse
You can insulate the attic near the chimney beautifully
The installation of an insulated chimney in a bathhouse has been completed with your own hands; all that remains is to beautifully insulate the attic in the bathhouse near the chimney. Expanded clay or clay is poured onto a sheet of metal from the attic side of the bathhouse between the chimney and the floor boards. Polystyrene foam and other flammable insulation materials are not suitable for this purpose. The most inexpensive way to insulate the attic of a bathhouse near the chimney pipe is to use expanded clay, cellular concrete or clay.
At self-insulation pipes in the bathhouse, many focus on their budget, while others, above all, care about practicality and attractiveness appearance the entire structure. You already know how to insulate a chimney pipe in a bathhouse. Additionally, you can make sure that it is easy to make an insulated chimney in a bathhouse yourself by watching the video below with instructions for installing sandwich pipes in a steam room.
Video. How and with what to insulate a chimney pipe in a bathhouse
During the heating process, the liquid, which is used as a coolant, circulates throughout the system. In order not to lose useful heat and avoid excessive overheating of the room, heating pipelines are insulated.
Such work is necessary in country houses, if the heating pipelines run along 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 deliver more heat into the room, retaining it along the entire route: from the boiler room to the heating radiators.
Several types of insulation are used as materials; 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 that is produced in the form of pipes various sizes, with a cut in the middle (this is made for ease of installation).
Installation
When insulating a pipeline with this material, pieces of insulation are applied to the pipes along the entire length and secured with construction tape. The joints or pipe connections must be covered with insulation of a thicker diameter. Therefore, before starting work, you need to approximately calculate the required amount of insulation. different sizes.
This brand of insulation is very convenient; it can be easily cut, and the remaining pieces can be used elsewhere, making one long part from several pieces.
Fiberglass insulation
This type of insulation is most in demand among builders. This material is relatively light in weight and is not at all susceptible to rotting. That is why it is often used to insulate pipes located on the street.
Installation
During installation, the pipes are wrapped with insulation and secured with binding wire. For additional protection from exposure to moisture from the outside it is tied with roofing felt or construction foil.
Basalt wool
These are shaped insulation elements, which are made in the form of plates and cylinders. Such insulation is fireproof, has good strength and does not allow moisture to pass through. Its installation is quite simple; as in the case of fiberglass insulation, it is additionally protected with aluminum foil or roofing felt.
Expanded polystyrene
This insulation is made in the form of two shells of different sizes; they are fastened together using special grooves, but to secure the connection they must be additionally secured with special glue or tape.
Installation
When connecting on pipes, the halves of the insulation are connected to each other and the two parts are shifted in different directions by several centimeters. The next link is also connected, and the remaining ends are joined together, resulting in a kind of “overlap” of one connection onto another, which provides a better bond.
To insulate awkward areas and corners, shaped shells that have unequal dimensions are used.
In order to carry out high-quality insulation with this material, you need to calculate in advance the length of the pipeline, the number of joints and bends. This is required to purchase required quantity connecting parts.
Polyurethane foam
This insulation is applied by spraying. A specially prepared composition is sprayed onto the installed pipeline. It reliably adheres to the surface and, when foaming, forms a dense protective mass with high strength.
Due to the fact that this insulation does not withstand exposure sun rays 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, insulation materials can be combined. For example, in a boiler room and outdoors they can be covered with mineral wool or basalt insulation. And in the house, the connections to the heating radiators are made of 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 insulation materials.
The bigger, the better…
This slogan refers to the installation of such insulation. It is applied with a spray or a regular 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 any problems both to a smooth pipe located in good accessibility, and to hidden, inconvenient areas.
When do you need to take care of pipeline insulation?
It is best to install insulation while laying pipes and branches in the room. At this stage, it will be easier for you to select sizes (when choosing roll or tubular insulation), and in the end there will be less waste, and this, accordingly, will save money.
Insulation repair
In front of everyone positive qualities For all types of materials, it would be useful to carry out a preventive inspection of the entire heating line before the onset of the winter season. In order to avoid troubles in the future, areas of insulation that have become unusable due to some circumstances must be replaced.
Video
Video on installation of mineral wool cylinders:
Photo
Related articles:
The chimney is the most important element of a stove or heating system private house. For the pipe to function effectively, insulation is necessary, which only seems simple. The design and installation of insulation requires compliance with certain rules and compliance with safety regulations, and professional skills from the contractor.
Why insulate a chimney pipe outdoors?
The chimney experiences heavy loads during operation: the action of hot air and pressure. Tons of combustion products pass through the chimney, which, under certain conditions, enter with air and moisture. chemical reaction. As a result, the process of natural corrosion accelerates, which leads to disruption of the pipe. Insulation reduces the risk of mechanical and chemical corrosion of the chimney. The costs of insulating the system will be fully recouped, as they lead to tangible positive results.
Causes of chimney destruction
During operation, the chimney elements undergo gradual destruction, which can lead to failure of the entire stove (fireplace) system.
There are two factors that damage the chimney pipe:
- moisture;
- chemical substances.
Moisture on the walls of the pipe is condensation, which is formed as a result of the meeting of hot air rising from the furnace with cold outside air. As the liquid accumulates, it gradually destroys the pipe. High temperatures act as a catalyst, increasing the corrosion rate several times.
Another reason is aggressive substances that arise during fuel combustion. Under the influence of high temperature and moisture, they form active compounds: acids, alkalis, salts, which penetrate into the thickness of the material along with condensate and cause chemical corrosion.
The impact of destructive factors depends on the temperature difference between air flow rising from the firebox and the walls of the chimney. How stronger pipe cools outside, the stronger the destructive effect.
Advantages of an insulated chimney
Chimney insulation minimizes the impact of factors that reduce the service life of the pipe. the main task The solution that the insulation solves is to raise the level of condensation formation as high as possible (ideally, up to the very end of the pipe, i.e., to direct contact with the outside air). This is achieved by increasing the temperature on the inner surface smoke channel and reducing the temperature difference between steam and pipe. Insulation significantly increases the service life of the pipe, and, consequently, its service life. In addition, routine pipe repairs will be carried out less frequently and at lower costs. What does chimney insulation provide:
- Eliminates the formation of condensation, prevents the action of aggressive components that simply evaporate along with the flow of hot air.
- Protects the structure from external factors(air temperature, precipitation, wind).
- Provides an energy-saving effect, which consists in lower thermal output of the chimney. This leads to savings in fuel needed to maintain the required temperature in the furnace.
The insulation prevents the destruction of the pipe material under the influence of precipitation, and also increases the frost resistance of the system. Thermal insulation eliminates the effect of elevated temperature on roofing material in areas of contact with the chimney. This eliminates the risk of roof destruction in the area where the pipe is attached, which leads to cost savings during ongoing repairs.
How to insulate the outside of a chimney?
In order to reliably insulate chimneys, materials are used that provide high degree thermal insulation. They exclude the influence of external climatic factors on the heat balance in the chimney duct. Manufacturers building materials offer modern thermal insulation materials V large assortment, some of which are used as insulation for pipes.
Basalt thermal insulation
Thermal insulation, which is made from mineral wool or basalt, is widely used for insulating chimneys. This material is formed by fibers obtained from the melt of volcanic rock - gabbro-basalt, and therefore has high heat resistance and strength. Advantages of basalt thermal insulation:
- high thermal insulation properties (up to 95% of the heat is stored inside the channel);
- good permeability to steam with high waterproofing parameters;
- high chemical and corrosion resistance;
- resistance to the formation of mold and fungi;
- vibration resistance;
- high heat resistance (maintains properties when heated to 100 degrees);
- non-flammability;
- environmental cleanliness;
- resistance to ultraviolet radiation (sun rays).
Stainless steel casing
Recently, standard metal casings in the form of a stainless steel pipe have been used. The use of a metal shell provides high mechanical strength, reliable protection from moisture and aggressive substances.
This casing is installed on a chimney made of steel stainless pipe smaller diameter. The interpipe space is filled with mineral basalt wool. The outside of the casing is covered with insulation up to 5 cm thick. The thickness of the gap between the pipes is 7-10 cm.
Wooden shields
One of the simplest insulation materials is wooden panels. This insulation is manufactured in the form wooden frame from panels with dimensions corresponding to the dimensions of the chimney pipes. On top wooden shields slate or other roofing material similar to the roof covering is fixed.
After installing the frame around the pipe, the space between them is filled with thermal insulation - felt, mineral wool, slag, asbestos, sand. The seams of the wooden frame must be coated with a waterproofing compound.
Slag concrete, reinforced concrete slabs
Insulation chimney can be made from slag concrete or reinforced concrete slabs. Such plates are installed around the chimney with the smallest gap. The space between the slabs and the pipe, as well as the seams at the corners of the slab joints, are reinforced with steel wire or mesh. The gap is filled with a solution of gypsum, sand and clay. Slab joints are strengthened concrete mortar. Plaster is applied over the tiled insulation.
How to insulate a chimney with your own hands?
The chimneys of houses have different designs and are made from various materials. The most common: brickwork, asbestos-cement slabs, metal tubular chimneys. Each design has specific properties and requires an individual approach during installation.
Brick chimney
Do-it-yourself insulation of a brick chimney can be done in several ways.
- The first method is plaster. On outside The brickwork chimney is secured with a steel reinforcing mesh. A layer of plaster mortar 30 mm thick is applied on top of it. The solution is a mixture of lime and slag with the addition of a small amount of cement. After the first layer has dried, apply a second layer of the same solution, and then another 2-3 layers. The last coating is carefully rubbed down, puttied, and after complete drying it is painted or whitened with lime.
- Another method involves using mineral insulation. A basalt sheet is attached to the pipe on all sides (you can use tape for fastening). Outside, a cladding made of asbestos-cement slabs with a thickness of more than 40 mm is installed on the cotton wool covering. It is possible to build another one instead of such slabs brickwork. A leveling layer of plaster is applied on top of the cladding.
The main advantages of such a complex design:
- heat losses are reduced by 2 times;
- the likelihood of condensation accumulation is significantly reduced;
- the strength and durability of the structure significantly increases.
Asbestos cement chimney
If the chimney pipe is made of asbestos cement, then insulation is carried out in the following order:
- The insulation design with a metal casing, which is made of galvanized steel, is used. In the case where the chimney has longer length, the casing is mounted from several sections in the form of a cylindrical pipe no more than 1.5 m long (the sections are placed on top of each other with an overlap of up to 10 cm).
- The gap between the chimney and the casing must be more than 60 mm. It is filled with mineral wool gradually with careful compaction.
- After the gap is completely filled, the top of the structure is filled with thick concrete mortar.
A simplified design can be used. 3 layers of mineral basalt wool are wound around the pipe, then polymer film and foil are applied. Strengthening the structure is provided by metal brackets, which are attached on top of the foil layer.
Yulia Petrichenko
Steel chimney
Steel chimneys, which are made from stainless pipes, are used required diameter. The insulation of such a chimney is done using another stainless pipe bigger size. Inner diameter the outer casing must exceed the outer circumference of the chimney by at least 10 cm. The gap between the pipes is filled with thermal insulation material - preferably basalt wool. Filling is done gradually, in parts, with sufficient compaction.
Modern steel chimneys are made in the form of sandwich structures, i.e. V finished form have a layered system with thermal insulation. This chimney pipe does not require installation additional insulation and reliable in operation.
Insulating a chimney in the attic
The need to insulate the chimney in the attic is determined by the type of room: cold or heated in winter time. If the temperature here is the same as outside, then you need to install insulation on the pipe.
To insulate a pipe in a cold attic, you can use any of the considered structures, taking into account that the probability direct impact atmospheric precipitation excluded. Therefore, it is recommended to insulate using wooden panels, and outer side the frame must be aesthetically processed.
Heated attics are characterized by this design - a frame made of wooden board or chipboard with a thickness of at least 18 mm, the gap between the chimney and the pipe is at least 50 mm. It is recommended to use basalt wool or felt as a filler.
When making chimney insulation with your own hands, you will need the following standard tool:
- perforator;
- electric drill;
- Bulgarian;
- trowel for plaster;
- grater;
- rule;
- paint brush;
- metal scissors;
- scissors;
- metal ruler;
- hammer;
- screwdriver;
- roulette;
- plumb line;
- level.
When planning private construction, people do not think about the special role of chimneys and the need for their insulation. In fact, the insulation is important element, allowing to increase the durability of the entire furnace system.
If you know other methods and secrets of chimney insulation, please share in the comments!
Chimney insulation: instructions for doing the work yourself
Condensation is the main enemy of any chimney. It is formed on the inner surface of the chimney from moisture contained in the air as a result of the difference in temperature outside and inside the room. Condensed moisture enters the microcracks and seams of the inner surface of the chimney, freezes when the temperature drops, and, expanding, destroys the masonry.
Metal chimneys also suffer greatly from condensation, because this liquid substance is nothing more than low concentration sulfuric acid. Condensate formed on the inner surface of the metal flue gradually renders it unusable. The only way to combat the formation of this rather aggressive liquid is to insulate the chimney pipe. It is this procedure that will eliminate the cause of condensation on the inner surface of the chimney.
There are several main ways to insulate chimneys. The choice of one method or another directly depends on the material from which the gas exhaust paths are made. The most common in our country are brick chimneys, as well as steel and asbestos-cement pipes, which are widely used by many private developers.
Insulating a chimney from the outside is far from the most difficult procedure in construction, and therefore such work can always be done independently, without involving professionals.
When insulating a chimney yourself, you should strictly follow safety precautions, because you will have to work at height. Special attention You should pay attention to shoes that should be comfortable and have non-slip soles.
Thermal insulation of brick chimneys
There are three simplest ways to insulate a brick chimney, which you can do yourself:
Work method: plastering
- First, a reinforcing mesh is fixed on the pipe, and a plaster solution is prepared, consisting of sifted slag, cement, lime and water, in a ratio of 3: 1: 2. The amount of water is selected independently. The solution should fit well on the prepared base, not flow or fall off it.
- After all preparations, the first layer of solution, 2-3 cm thick, is applied to the reinforcing mesh.
Subsequent layers plaster mixture Can be applied only after the previous ones have completely dried.
- After applying the last layer, the surface of the plaster should be leveled for subsequent painting. If cracks appear on the surface after drying, they must be puttied and the surface thoroughly rubbed.
- Paint the pipe with chalk or lime mortar.
Insulation of chimneys using glass wool or mineral wool materials
To independently carry out work on insulating a brick chimney with these materials, you will need: U-shaped profile, vapor barrier, corrugated sheeting. As insulation, it is best to use mats made of basalt fiber or glass wool, 50–100 mm thick.
- First of all, you should prepare brick surface, clearing it of protruding cement mortar, seal cracks, etc.
- After, from metal profiles the frame is assembled. The upper guide should be attached directly to the masonry, and the lower one to the roof.
- The next step will be fastening vertical profiles. fasten vertical racks should be done in such a way that insulation can be easily laid into the resulting sheathing required thickness.
- Joints insulation material should be secured with tape, and the insulation itself, using special plastic dowels, to the masonry.
- After which the resulting structure should be wrapped with a vapor barrier film.
- The last stage in insulation is covering the resulting structure with corrugated board, securing it to the sheathing using self-tapping screws.
The above methods can be combined by attaching insulation to a brick pipe and plastering it with several layers of cement mortar.
Insulating the chimney pipe with your own hands will significantly reduce heat loss from the heating system of the house and will reliably protect the brick chimney from the formation of internal surfaces condensate
Thermal insulation of asbestos-cement chimneys
Insulating a chimney from an asbestos-cement pipe yourself is not difficult for anyone. home handyman. To do this you will need: pliers, knitting wire, galvanized sheet, rolled basalt insulation or glass wool insulation.
This is the most simple and sufficient cheap way protect the asbestos-cement pipe from exposure to weather factors and prevent condensation from appearing in the chimney.
Thermal insulation of steel chimneys
To carry out the work yourself you will need: a larger diameter pipe, insulation material with good thermal insulation properties and non-flammability indicators. Today, most foreign and domestic companies producing insulation materials offer special material made in the form of semi-cylinders. This type of insulation is ideal for thermal insulation. steel chimneys round section.
- First of all, you should select a metal pipe of a suitable diameter so that the distance between its inner wall and the chimney is at least 5 cm.
- After that, you should put a section of pipe of larger diameter onto the gas outlet, and tightly fill the space between them with insulation.
To make the work easier, you should carry out this procedure step by step, connecting the prepared sections of the chimney together.
All of the above methods for insulating chimneys are quite simple, but if you feel it is difficult to carry out one or another method of insulation, then do not take risks and contact professionals who will do this work quickly and efficiently.
Insulating a chimney in a private house - important rules and recommendations
Chimney insulation in a private house is a question that any person living outside the city faces. This saves money because after insulation work, you will protect the chimney from various types of damage. Today they made from various materials. asbestos pipes, steel and much more, but brick is most often used, and therefore this process should be considered separately.
Why do you need chimney insulation?
Rapid destruction of pipes occurs most often in harsh climatic conditions. The reason for this may be the resulting different temperatures condensation, which causes the walls of the chimney to become saturated with moisture. And this is especially dangerous if on the street subzero temperature.
Insulation of a brick chimney is what you need. You can even carry out this procedure simple plastering with reinforcing mesh, but much more reliable and safer - with the help of mineral wool and siding.
DIY metal chimney
The chimney is a vertically located pipe of square or round cross-section and is necessary for rooms with internal heating.
The main purpose of the design is to create natural traction:
- release of combustion products into the atmosphere
- air flow into the firebox for better combustion.
Classification by type
Metal chimneys are classified into two main types:
- single-circuit. Used as a chimney lining indoors or as a protective pipe for an existing brick chimney. This type is easy to install and requires minimal investment.
- double-circuit. More complex design, consisting of an internal metal pipe for stainless steel chimney High Quality and external larger cross-section. The interpipe space is filled with insulating material based on basalt rocks.
Advantages and disadvantages
Advantages of a metal chimney:
- Possibility of installation in an already constructed building
- does not require additional foundation, as it is light in weight
- inherent circular cross-section – best option to create traction
- has a high natural draft efficiency
- fully complies with fire safety regulations
- resistant to corrosion
- has high mechanical strength
- the material does not contribute to the accumulation of soot, therefore does not require frequent cleaning
- sealed, gas-tight
- durable
- affordable prices and ease of installation.
The disadvantages of a do-it-yourself metal chimney are primarily related to additional expenses:
- on support structure for tall pipes
- for preliminary design work on the arrangement of the future chimney.
Installation of a metal chimney
Installation of a metal chimney provides several options. Let's look at each of them in more detail. But before we start construction work, it is best to make a preliminary drawing.
Installation diagram of a metal chimney (pipe) outside and inside.
Pipe installation
- The first stage is making a channel for the chimney. The hole should be smooth and 1.5 times wider in diameter than the pipe used. It is best to place the chimney closer to the ridge.
- Then you should adjust the pipe to the size of the building. The recommended height of the pipe above the ridge is calculated using the following formula: L0.5/3, where L is the total length of the pipe from the beginning to the ridge.
- The stage of installing a metal pipe into a completed channel involves fastening it to the wall every 1.5 meters.
- Next comes the connection of the capacitor to the firebox itself.
- In case of use steel pipe it is necessary to take care of the insulation between the chimney and the interfloor surfaces. Clay can be used as an insulating material.
- At the stage decorative arrangement When installing a chimney, it is important to use exclusively fire-resistant materials.
- The final stage is the installation of the chimney head.
In the future, during operation, the chimney will require periodic cleaning, and you also need to know how to wrap a metal chimney pipe in order to insulate it.
Installation of sandwich pipes
It is not advisable to use sandwich pipes for the construction of an external chimney - due to their critical reaction to temperature changes. In all other respects, this material has its advantages:
Sandwich pipes are joined together in grooves, additionally secured with construction adhesive. Due to the own weight of a single slab and the glue, the metal chimney device is generally sealed and does not allow smoke to pass through during operation.
Installation of an external chimney
- The hole in the wall for the pipe should be 0.5 meters above the firebox.
- Next are installed fasteners(brackets) for the pipe on the outside of the building in 1 meter increments.
- Then follows the connection of the chimney to the boiler.
- The pipe is routed to the street using an additional angle.
- Next, install the condenser and secure the pipe.
- The final stage is installing a roof over the chimney.
Insulation
The main task of insulation is to eliminate the possibility of condensation that forms in the pipe as a result of temperature changes. Therefore, the question often arises of how to insulate a metal chimney.
Insulation of a metal chimney
- First you need to acquire two metal pipes of different diameters. The difference in diameters should be at least 5 cm.
- A pipe of larger diameter is placed on a pipe of smaller cross-section, and the resulting crotch is filled with insulation.
- It is best to build the structure step by step. When assembling the pipe elbow by elbow, insulation should be laid at the same time.
- The insulation should fit tightly so that there is no free space.
You should also know how to insulate a metal chimney pipe. The highest quality heat insulators are considered to be materials based on mineral and basalt wool.
Today's building materials market is represented by a variety of ready-made insulation materials, which simply need to be placed on a metal pipe and wrapped with an additional casing.
Any private house has a stove or fireplace, as well as its own bathhouse. The chimney almost always goes to the roof of the structure. Its durability as well as Fire safety, directly depends on the correct and reliable insulation of the chimney. For this reason, the question arises, how to insulate a chimney and what material should be used to insulate a metal pipe? How to do this correctly with your own hands?
Chimney insulation in a bathhouse
The issue of chimney pipe insulation often arises among owners of private houses. Such work must be performed to protect the structure from fire and destructive factors:
- overheat;
- leakage at joints.
Experts recommend carry out such work comprehensively, using hydro- and fire-proof thermal insulation. When choosing material for insulation, first of all you need to think about the safety of your family. Live fire in an enclosed space always poses a danger to human life. If you do not provide high-quality and reliable protection for the ceiling, it can easily catch fire.
Traditionally, wood is used to build a bathhouse. It is easily flammable. Most people naively think that covering the ceiling with metal sheets can serve as protection against fire and therefore do not insulate the chimney. Metal sheets heat up and do not prevent overheating and ignition. Sometimes the chimney is insulated with red brick, but this material is not the most suitable design for a wooden bathhouse.
Big choice modern materials allows you to choose the most suitable and reliably insulate the chimney. Some of the most sought after and popular include:
Also for the bath red brick is used. It withstands high temperatures well and long time retains heat. When using red brick, the masonry must be done correctly. The lifespan of the structure will depend on its quality. It is inappropriate to save here, since the cost of repairs will cost several times more.
What to use for winding a metal chimney?
In the old days, people used clay and asbestos, as well as other improvised materials, to insulate the chimney in a bathhouse. natural materials. The main thing in any insulation material is poor thermal conductivity to prevent fire from high temperatures. The chimney and stove heat up very quickly and therefore it is important to properly insulate the chimney pipe for fire safety purposes.
Inside the structure with insulation at the moment of heating condensation will not accumulate, which is very important. It will cool slowly, deteriorate less quickly, and its service life will be longer.
Teploizol
The article mentioned the material Teploizol and now we will dwell on its description in more detail. It's comparative the new kind insulating material. It is made from foamed polyethylene. It is hidden between two layers of foil. It withstands elevated temperatures well and is suitable for insulating chimneys. Manufacturers produce Teploizol thickness from 2 to 10 mm. The greater the thickness of the Thermal Insulation, the higher temperatures it can withstand:
- 2-5 mm - withstands temperatures from -30 o C to +100 o C;
- 5-10 mm - permissible operating temperature from -60 o C to +150 o C.
The top foil layer protects the pipe from strong heat. The material is easy to work with. It is easy to work with it yourself. The pipe is wrapped with Thermal Insulation using wire or metallized tape.
Folgoizol
Folgoizol is also an excellent choice for insulating chimneys. It consists of two layers of foil and a heat insulator. Due to the reflective properties of the foil, the material can retain up to 90% heat in the bath. It ranks first in the list of similar materials. To make it, thick food foil is used. In addition to excellent insulating properties, it also has other effective properties, for example, it is not afraid of UV, high temperatures. Folgoizol withstands temperature regime from -65 o C to +175 o C.
Folgoizol is harmless to health, since it is produced using food foil. It is often used not only for insulating chimneys; it is also used to cover the walls and ceiling of bathhouses. He is considered ideal insulation, hydro- and vapor barrier for saunas and baths.
Sandwich pipes
Sandwich pipes can serve as a good solution for insulating a metal chimney. Manufacturers assure that such insulation will be reliable and safe. Having installed this design, you don’t have to think about isolation. It will consist of several sections that can be easily and quickly assembled into a single whole. You can quickly assemble the entire structure and install it with your own hands. It is suitable for a metal pipe in a bathhouse or sauna with an iron stove.
By their design, sandwich tubes resemble a pie made from several layers. Inside there is a layer of stainless steel, and after that a layer of mineral wool or basalt insulation. The outside of the pipe is covered with a layer of galvanized steel. This design is modern method built-in chimney insulation in finished form. It will perform two important functions at once:
- do not overheat outside;
- do not accumulate soot.
Such designs great for saunas, but for baths with brick stove you need to look for another option.
Insulation for a traditional Russian bath
Wooden roof structure in contact with hot pipe may ignite. To avoid a fire in the bathhouse, it is isolated. Most often, mineral wool secured with wire is used for this purpose. The top of the pipe is plastered with clay-sand mortar and covered with a layer of galvanized steel roofing. Fix it with self-tapping screws and then perform installation. Insulation helps the roof and wooden floor get protection against overheating and fire. If the pipe is properly insulated and sealed, moisture will not enter the attic.
It is recommended to insulate the pipe outlet in the ceiling and roof area with asbestos sheets. They have good protection against high temperatures. The walls near the inside of the pipe are lined with galvanized metal sheets. Ordinary iron ones are not suitable for such work, as they are susceptible to corrosion. It is advisable to make a box around the pipe where it passes through the ceiling. Expanded clay is poured inside the box, which will serve as good protection against fire for the wooden floor. Expanded clay will also retain heat. Experts recommend that in addition to insulating the chimney, you should also not forget about the ceiling, walls and stove in the bathhouse.
It is recommended that before starting work on insulating a metal chimney pipe, it outer part treat with heat-resistant sealant. The special sealant can withstand temperatures up to +1000 o C. The applied product will prevent insulating materials from sliding on the outer surface of the metal pipe.
