Modern insulation of a sauna: what is the secret and tricks? Insulating a bathhouse from the inside: cheap and safe ZPU sauna insulation, which is better.

All the benefits of a bathhouse may be unattainable if, at the stage of its finishing, the issue of internal insulation has not been worked out thoroughly enough. Even with proper construction according to a time-tested design, the walls of a bathhouse without additional thermal insulation will not be able to adequately retain heat. And this means a decrease in comfort during bath procedures, and increased costs for kindling. Meanwhile, there are many options how to ensure that unacceptable heat losses are avoided.

What is the best way to insulate a bathhouse from the inside?

What materials should be used for internal insulation of a bathhouse? For the longest time in the practice of building baths they have been using natural materials, which were available throughout the history of the existence of such structures. Our ancestors often insulated the internal surfaces of bathhouse walls with improvised materials: hemp hemp, flax tow, moss, etc. All of the above are still used today, because... natural materials have a very significant advantage over other thermal insulation: they are absolutely environmentally friendly.

However natural insulation materials has some features that significantly reduce their attractiveness. Firstly, the process of finishing a bathhouse with natural thermal insulation is a very, very labor-intensive process. Even with all the simplicity of the technology, caulking a bathhouse with moss or tow will take an excessive amount of time.

Secondly, natural materials are attractive not only to the owner of the bathhouse. Birds and small rodents love to take them away for their own needs, and insects can easily live in the moss layer, which also does not contribute to the durability of the material. Therefore, the insulation of a bathhouse made from natural materials requires regular updating.

More modern synthetic materials completely devoid of these disadvantages. While no less environmentally friendly, they have a much longer service life, and in terms of thermal insulation parameters they even surpass natural alternatives.

In addition, synthetic materials are not at all afraid of exposure to moisture and the high temperatures characteristic of a bath, they are lightweight and have a simple technology for working with them.

Among synthetic thermal insulation materials, suitable for interior decoration of baths, most widespread expanded polystyrene, basalt fiber, mineral wool and glass wool. When deciding how and what is the best way to insulate a bathhouse inside, you need to understand that, despite the same purpose, each of these materials also has some differences.

1. Expanded polystyrene. Its main feature is good combination excellent thermal insulation, low cost and low weight. However, in relation to a bathhouse, this material can only be used to insulate the external walls of the dressing room. In the washing room, due to high temperatures, polystyrene foam can lose its shape, thereby compromising the thermal insulation. It is generally unacceptable to use this material to insulate a steam room, since it is a fire hazard.
2. Insulation made from basalt fibers cannot boast of a pleasant price tag, but in relation to a bathhouse they can become ideal solution. Since basalt fiber is made from molten rocks, it has some important features:

• absolute non-flammability;
• resistance to mechanical deformation and moisture;
• excellent level of sound absorption;
• excellent thermal insulation.

Basalt insulation is quite convenient for finishing, since it can be easily cut into pieces of the required shape. Their service life, which can reach several decades, is also noteworthy.

Mineral wool. The technology of its production is in many ways similar to the production of basalt insulation. However, instead rock much cheaper waste is used in the production of mineral wool metallurgical industry. And this is the most in a positive way affects the cost of such thermal insulation.

Other advantages of mineral wool include the following:

• low thermal conductivity (guarantee of reliable thermal insulation);
• hydrophobicity, allowing the use of mineral wool in conditions of high humidity;
• ability to absorb sound.

Meanwhile, mineral wool, due to the characteristics of the raw materials for its production, is not characterized by mechanical strength. Therefore, it is advisable to exercise some caution when working with such material.

Video about how to properly insulate a bathhouse from the inside.

Glass wool. At its core, this heat-insulating material is an interweaving of thin fibers made of inorganic glass. Therefore, glass wool contains a significant amount of air in its volume, which ensures the ability to perfectly retain heat with good vapor permeability.

One of the significant advantages of glass wool over analogues is its relatively low cost. In this case, there is always the opportunity to choose insulation required thickness. Available as glass wool rolls different widths, and industrially cut mats and slabs.

And in this photo is one of the schemes for insulating a bathhouse from the inside.

Insulation of a bathhouse from the inside

Features of insulation interior walls is in the bathhouse high level humidity. Therefore, even if moisture-insensitive thermal insulation is selected, insulation will be required cover securely with a layer of vapor barrier. If this is not done, moisture will begin to condense inside the insulating material, which can lead to a decrease in the ability to retain heat and the possibility of rotting of the wall material.

Aluminum foil can be used as a vapor barrier for baths, which not only protects the insulation from condensation, but also largely reflects heat. To ensure the integrity of the vapor barrier, all seams between the sheets of foil should be taped with metallized tape.

Since the conditions in the bathhouse are various rooms differ significantly, then the insulation technology will vary significantly.

1. Insulation of walls in the steam room.

Here the sequence of actions will be as follows:

• dry lathing is hung on the surface of the walls wooden beam or slats;
• the cells formed by the lathing slats are covered with fiberglass cloth;
• fits heat insulating material(basalt is best);
• A layer of vapor barrier is laid on top of everything.

The final stage of wall insulation in the steam room will be installation decorative finishing. As such, it is best to use wooden lining.

Another video about insulating a bathhouse from the inside and how to line a steam room inside.

Ceiling insulation.

This operation is in many ways similar to improving the thermal insulation of walls. The differences will be that when insulating the ceiling in the washing room and in the dressing room, you can refuse to use aluminum foil as a vapor barrier. Instead, it is quite possible to use cheaper polyethylene or kraft paper.

In addition, between the vapor barrier layer and decorative cladding The ceiling should leave a gap of 1-2 cm. This distance will improve the ventilation of the cladding material to speed up its drying. This moment is quite important, since during bathing procedures the ceiling lining is exposed to the destructive effects of moisture at very high temperatures. The presence of a gap will allow the wood not to rot, but to dry out without deteriorating its performance and aesthetic qualities.

Floor insulation.

Heat loss in a bathhouse can occur not only through the walls or ceiling, but also through the floor, which is especially important in winter time. Therefore, floors must also be carefully insulated. The sequence of actions for floor insulation will be as follows:

• a concrete screed is poured onto the leveled and compacted base of the earthen floor;
• after the screed has hardened, a layer of waterproofing made of dense polyethylene or roofing felt is lined;
• sheets or fabrics of insulation are laid;
• another layer of waterproofing is lined;
• another layer is poured concrete screed.

Since the floors in the bathhouse are constantly in contact with water, when insulating them, careful installation of the waterproofing should be given the greatest possible attention.

It is very important that water, even with minor damage to the top layer of the concrete screed, cannot penetrate the insulation layer and thereby deprive it of its heat-insulating qualities.

Having solved the problem of how to properly insulate a bathhouse from the inside, you can get a guarantee that it will be possible to quickly warm up all the rooms even in severe frosts. The bathing event itself will become much more comfortable, since the temperature will be consistently high.

This is especially important for those who like to take a deep steam bath, because when insufficient thermal insulation In the steam room, the procedure will lose its attractiveness. By using modern insulating materials, you can get rid of such problems forever.

Today, before starting construction of a bathhouse complex, every owner should ask himself how to insulate a bathhouse from the inside. The construction market offers dozens of options. The main thing is not to get confused and choose such insulation for a bathhouse so that it meets construction requirements.

Principles for choosing insulation

When buying material, you should pay attention to the most important signs of an effective product:

1. environmental friendliness;
2. maximum degree of moisture resistance;
3. resistance to harmful microorganisms;
4. the ability not to deform during long-term use;
5. thermal conductivity index: the higher it is, the better;
6. compatibility with building materials;
7. minimum moisture absorption value;
8. correspondence fire safety requirements, sanitary and epidemiological station standards;
9. ability not to accumulate condensate;
10. ease of installation.

Types of insulation materials

Before you run around the shops and grab anything, you should understand the range of materials on offer.

Bath insulation can be organic or inorganic.

Organic materials

This includes a group of insulation materials that are made from natural raw materials:

• sheep wool or felt;
• jute;
• tow;
• heat-insulating materials from peat, reeds and wood shavings.

The main advantage of natural materials is environmental friendliness.

But insulating a bathhouse from the inside with their help has a number of disadvantages:

1. Natural thermal insulation for the interior decoration of a sauna is a labor-intensive and time-consuming process.
2. Natural insulation materials are short-lived and require regular updating.
3. Flax, moss, felt, tow are a favorable environment for the life and reproduction of insects, rodents and other harmful microorganisms.
4. They are suitable for dressing rooms and rest rooms, but are not suitable for thermal insulation inside hot rooms, even after additional treatment with fire retardants.
5. Purchase natural materials significantly “hits the wallet.”

Inorganic or synthetic materials

There is no need to talk about absolute environmental friendliness here. Unlike natural ones, they will last for decades and provide better thermal insulation. Synthetic bath insulation is easy to install and resistant to high humidity and hot air.

Inorganic thermal insulation materials are divided into several types:

1.Polymer insulation

The group of these materials includes polystyrene foam, foam plastic, and cellular plastic insulation.

Polystyrene foam is easy to use to insulate the sauna ceiling. It does not absorb moisture, practical and easy to handle.

A novelty in the construction industry is foam glass, which embodies best properties foam plastic and stone wool. The material can be carved with a knife and attaches perfectly to the surface.

Despite the advantages, it is not recommended to insulate the ceiling inside a sauna with polystyrene foam. On the one hand, it is considered a fire hazard. On the other hand, as the air temperature increases, the foam deforms and releases bad smell, vapors of a toxic substance - phenol.

If you still decide to use polystyrene foam, then it is better to insulate the walls of the dressing room with it. outside.

2.Basalt insulation for baths

Made from mountain wood, the material is used in last years demand. It has a number of advantages:

• Not subject to combustion;
• Resistant to humid air;
• Does not deform under the influence of temperatures;
• Excellent sound and heat insulation;
• Service life up to 30 years;
• Does not cause any difficulties during the installation of finishing.

As for the disadvantages, there are none except for the cost of the material.

3.Mineral wool

The main difference between the technology for producing mineral wool and the production of insulation from basalt fibers is the use of inexpensive industrial waste.

This has a positive effect on the price of the material, but a negative impact on mechanical strength insulation. Therefore, be extremely careful during the installation process.

Along with the disadvantages, mineral wool is not without advantages:

• Reliable thermal insulation;
• Not afraid of moisture;
• High degree of sound insulation.

4.Glass wool

Insulating a bathhouse with glass wool will cost no more than its analogues. And according to certain criteria, it is not inferior to other materials: it holds heat well and is easy to install.

A significant disadvantage of glass wool is its instability to hot air.

5.Foil insulation

To insulate the sauna ceiling, it is recommended to use materials that reflect light. Insulating mirrors have become widespread. Due to a special aluminum coating, they reflect and do not transmit heat through the ceiling. Foil insulation for a bathhouse is recommended to be used in combination with classic materials.

Insulation of the sauna

Having decided on the choice of one or two heat-insulating materials, proceed directly to work. Insulating a bathhouse from the inside with your own hands is a difficult process that requires skills in the construction industry. If you are confident in your abilities, then go for it. Otherwise, it is better to seek the help of specialists from the Marisrub company.

It should be noted that the process of thermal insulation of a wooden or brick sauna is almost the same. Therefore, there is no point in focusing on the insignificant difference.

Before you start insulating the walls, ceiling and floor, it is wise to take care of the vapor barrier. Even if you have chosen moisture-resistant insulation, during operation condensation will gradually begin to penetrate through the internal layers of the insulating material and have destructive effects.

To isolate the insulation from moisture, use aluminum foil. The solidity of the vapor barrier is achieved through metallized tape, which is used to glue the joints of the foil sheets.

We insulate floors

It is correct to start insulating a sauna not from the ceiling or walls, but from the floor. In the bathhouse it can be continuous or leaking. Considering that structures differ from each other, insulation of each type occurs differently.

It is better to use mineral wool. It is laid on a subfloor made of boards and covered with a layer of waterproofing. Final stage- filling the floor.

When installing leaking floors, dig a pit 50 cm deep and fill it with 5 cm of sand. After careful compaction, a 20-centimeter layer of insulation is laid - polystyrene foam, which is poured cement mortar with foam chips.

After drying, the concrete is covered with a layer of waterproofing, not forgetting the walls.

Then they again fill it with cement and vermiculite, spread a reinforcing mesh and cover it with a layer of concrete with fine crushed stone. At this stage of work, a slope is made in the direction where the water will flow.

The work is completed by laying the finished floor on posts.

We insulate the walls

Insulation of bathhouse walls from the inside occurs in stages:

1.Using wooden slats or timber we apply lathing to the surface of the walls. The gap between the slats must be made smaller than the width of the heat-insulating material.

This is done so that the insulation fills the resulting spaces and prevents the formation of bridges for cold air. It is recommended to use mineral wool or basalt fiber slabs as insulation.

2. Having laid the heat insulator, cover it with any vapor barrier with foil. In this case, the reflective side of the aluminum surface is located inside the sauna.

The vapor barrier is placed between the slats and fixed to them.

Thermal insulation of the steam room walls is ready! Other sauna rooms are insulated using the same principle. Instead of foil for a vapor barrier, thick kraft paper for wrapping is suitable.

When insulating buildings made of bricks or blocks, it is recommended to increase the thickness of the basalt insulation so as not to lose heat.

We insulate the ceiling

Thermal insulation of the ceiling occurs by analogy with the principle of wall insulation.

According to the laws of physics, the closer to ceiling covering, the hotter the air will be. Therefore, fire-resistant insulation is chosen for the ceiling. Mineral wool is perfect.

If there is an attic in the bathhouse, then a vapor barrier layer is made above the insulation - an aluminum film.

Insulation is placed under, above or between the rafters. If you're looking for the easy way out, lay a continuous layer of insulation between the rafters.

Finally, cover the heat-insulating material with a layer of waterproofing. Let us not forget about air gap 20 mm in size. This is done taking into account the increase in insulation by a third of the width under the influence humid air.

If there is no attic in the bathhouse, expanded clay is often used as insulation for the ceiling. A 25 cm layer of thermal insulation is poured onto the vapor barrier layer.

The construction market offers thermal insulation panels for insulating a bath room. The main advantage of the material is the possibility of refusing waterproofing, the minus is that they require a reliable vapor barrier layer.

Done correctly interior decoration Baths guarantee not only a pleasant stay in the company of friends, but also safety. So come to your choice building materials and performing work with maximum responsibility.

This article will discuss thermal insulation materials for insulating saunas and baths.

You will learn why it is necessary to insulate a sauna, what requirements high-quality insulation must meet, and how to choose the right insulating material.

1 Why do you need to insulate your sauna?

Let's think about what we want to get from a good, high-quality sauna or bathhouse. Most owners, as a rule, answer that the main requirement is to maintain the required temperature for a long time and quickly warm up the room.

For example, the average temperature in a Russian bath is from 70 to 90 degrees, with high humidity air, in Finnish sauna– about 100 degrees, with low humidity.

To maintain such a temperature over a long period, the design of the sauna and bathhouse must have high thermal insulation properties, which, in most cases, can only be achieved by insulating them.

As practice shows, the use of high-quality thermal insulation materials, and technologically proper insulation, makes it possible to obtain the following results:

• Electricity costs are significantly reduced, or solid fuel, for heating saunas and baths;
• Significantly extended durability wooden baths, since the walls get effective protection from moisture, under the influence of which in the long term the tree will rot and collapse;
• Extending the service life of stoves - to warm up an insulated sauna or bathhouse, much less thermal energy is required, since heat loss is minimized, which makes it possible to operate the stoves in a gentle mode;
• The time required to fully warm up the sauna is reduced and the period during which the sauna maintains the required temperature is increased;
• If you use fire-resistant material for insulation - basalt or foil insulation, the fire safety of the room increases.

1.1 Key requirements for sauna insulation

To decide which insulation is best to use for saunas and bathhouses, it is necessary to identify the basic requirements that the thermal insulation of the bathhouse must meet. should be carried out based on a number of requirements.

These requirements, in addition to general rules that everyone must comply with high-quality insulation materials, three:

1. Presence of a shielding layer (foil);
2. Resistance to moisture and evaporation;
3. Fire resistance.

Since baths and saunas are rooms in which a powerful heat source is located - a stove, simple insulation not enough for such premises. Much greater efficiency can be achieved by using insulation with foil, which has the properties of reflecting thermal energy. Bulk insulation can be used for this.

Conventional insulation, which has low thermal conductivity, simply prevents heat transfer, but the heat is still much slower, but goes into environment, or neighboring rooms. This fact should be taken into account.

While insulation with foil has two advantages at once - a base made of basalt wool or polyethylene foam prevents heat transfer between cold wall And warm air inside the bathhouse, and a layer of foil reflects the radiation coming from heating stove thermal energy.

Resistance to moisture is necessary so that the insulation does not begin to lose its properties. thermal insulation characteristics and deteriorate under constant exposure to moist air. You need to be guided by this fact.

In the case of using vapor-tight insulation - penotherma and similar products made of foamed polyethylene, there is no need for additional vapor barrier, however, if you decide to lay non-foil basalt insulation, then it is necessary to use special vapor barrier membrane films (as budget option You can use regular cellophane).

When it comes to fire resistance, not only the combustion class of the material is important, but also temperature regime for its operation. For example, the limit temperature when using Penoplex is 80 degrees, above which the material begins to deform.

As you understand, in a Finnish sauna, the temperature in which can reach 100 degrees, it is better not to use such insulation.

2 Types of insulation

Based on the above requirements, we can conclude that for insulating a sauna or bathhouse, two types of insulation are optimally suited:

• Foil mineral (basalt wool);
• Foil penotherm.

The use of these materials makes it possible to achieve the “thermos effect”, when the walls of the sauna do not allow steam to pass through, as a result of which the air temperature in the steam room does not decrease over a long period.

As an additional vapor barrier, if you decide to use non-foil insulation, it is recommended to use cellophane (density from 140 microns), glassine, or roofing felt. It is better not to put roofing felt, especially in a steam room, as at high temperatures it begins to give off a very unpleasant odor.

2.1 Mineral wool

In total, there are three types of mineral wool with which you can: fiberglass wool - made from cullet, slag wool - made from waste from the metallurgical industry, and basalt wool - made from basalt rock.

The best option for insulating a sauna is basalt wool; although it costs a little more than other types of mineral wool, it has much better technical characteristics. A more expensive, but high-quality analogue is .

The main manufacturer of basalt wool on the domestic market is the Ursa company, whose product line includes special basalt wool for thermal insulation of saunas and baths - Ursa Glasswool M-11F. With its help you can carry out.

Ursa "Glasswool" is a rolled basalt insulation with one-sided foil. Thermal energy shielding coefficient y of this material is about 97%, while for such insulation there is no need to lay additional vapor barrier.

Let's look at the main technical characteristics of the Urs "Glasswool":

• Density – 11 kg/cubic meter;
• Flammability class - NG (completely non-flammable material);
• Maximum temperature – up to 800 degrees;
• Thermal conductivity coefficient – ​​0.04 W/μ;
• Roll dimensions: width – 120, length – 1800, thickness – 5 centimeters;
• The area of ​​one package is 21.6 m².

Also, Ursa Geo M-11F fiberglass wool with one-sided foil is a good choice for insulating a sauna. The density of this mineral wool is 14.1 kg/m³, thermal conductivity is 0.042 W/μ.

The flammability class of Ursa “Geo” is similar to “Glasswool” wool - NG, however, the operating temperature is limited to +270. The vapor permeability of the insulation is 0.7 mg/mhPa. As an alternative to the presented material, you can consider.

2.2 Foil penotherm

While for insulation of residential buildings penotherm is rarely used as the main insulation, for baths and saunas - where the shielding capabilities of the material come to the fore, since the main heat losses are associated with thermal radiation, foil foam is one of best options thermal insulation.

Among all the foil insulation materials of the Penotherm company, the material “PenoPremium NPP LF” is intended, the peculiarity of which is the extended temperature range of operation. These are very popular.

While most foil insulation based on polyethylene foam is deformed at a temperature of about 100 degrees, Penotherm NPP LF can withstand temperatures of +150C without any problems.

Let's get acquainted with the main technical characteristics of this material:

• Thermal reflectance index: 90%;
• Water absorption during full immersion for 25 hours – 1% of the volume;
• Thermal conductivity coefficient: 0.034 W/μ;
• Material density: from 100 to 390 g/m²;
• Flammability class: G2 (low-flammable materials);
• Temperature range: from -40 to +150 degrees;
• Vapor permeability coefficient: 0.001 mg/mhPa (vapor-proof material).

An undeniable advantage of Penotherm is the ease of installation of insulation from this material. To install insulation there is no need to create load-bearing frame, it is simply mounted on the wall or bathhouse ceiling using construction stapler, or nails, with foil inside the room.

The places where staples or nails are located, and the places where Penotherm sheets join each other, are glued aluminum tape, after which a frame for cladding is installed on top of the insulation, and the walls are covered with decorative material.

2.3 Bath and sauna insulation technology (video)

Insulation from the inside is an inevitable event for most types of baths. It allows you to spend less fuel, warm up the steam room faster and better. Properly done insulation protects the walls of the bathhouse from fungus and rotting, and extends its service life. In this article we will select inexpensive and safe types thermal insulation depending on the material of the bath walls, and consider how to install them correctly.

• Insulation of bathhouse walls from the inside: selecting insulation;
• Insulating a bathhouse from the inside with your own hands: from the ceiling to the floor;
• Insulation brick bath from the inside with your own hands;
• Insulation of a bathhouse made of blocks from the inside
• Insulation wooden bath from the inside

Insulation of a bathhouse from the inside: materials

TO different rooms baths have different requirements, we will focus on the steam room and wash room, the features of which are high temperature and high humidity. Also, the insulation is selected depending on the material of the bath walls.

But, regardless of the material of the walls and the purpose of the room, the insulation must be:

• Non-toxic so as not to cause poisoning when exposed to high temperature;
• Not hygroscopic, so as not to absorb moisture;
• Resistant to high temperatures and steam;
• Non-flammable;
• Maintaining its shape even after several years of extreme use;
• Resistant to fungi and mold;
• Sold at a reasonable price.

Bath insulation

Insulation	In what room is it used?	Note
Natural materials: rolled jute, felt, insulation made from reeds and sawdust, moss, tow, etc.	Dressing room, rest room.	Natural materials ignite at high temperatures, so they are not suitable for steam rooms and washrooms. But jute and linen materials are the best interventional insulation chopped bath. There are excellent modern roll insulation made from natural materials, but they are very expensive, so they are practically not used for insulating baths.
Mineral insulation.	They can insulate any bathhouse. Most often, slab insulation boards (mats) that are easy to install are used.	They do not rot, last up to 30 years, are fire resistant, and inexpensive. Most Russian baths are insulated with these materials.
Polymer materials	FORUMHOUSE craftsmen do not recommend it for insulating a steam room.	Polystyrene foam is an excellent heat insulator, but it is flammable, and at high temperatures it releases substances harmful to humans. You cannot use polystyrene foam in the steam room.. Extruded polystyrene foam or penoplex is considered a safe material (it is used to insulate the bathhouse of Russian polar explorers in Antarctica). But FORUMHOUSE experts do not recommend using this material in a steam room.
Insulation based on aluminum foil.	It is used in accordance with the manufacturer's recommendations for a specific room.	The principle of operation of such insulation is the effect of a thermos, the reflection of heat from the walls and ceiling due to foil. Some types of foil insulation are produced specifically for steam rooms and other rooms with high temperature, others begin to emit when the temperature rises harmful substances. Foil in the bathhouse is used as a vapor barrier.

Insulation of the bathhouse ceiling from the inside

The bathhouse is insulated from the inside in the following order: ceiling - walls - floor. The main part of the heat in the bathhouse is lost through the ceiling, so

The thickness of the ceiling insulation is twice the thickness of the wall insulation and is at least 10 cm.

Nomad

We hang at least 10 cm of insulation under the black ceiling. Better basalt wool, I really don’t recommend glass wool and polystyrene foam in the steam room. The insulation can be hung with lacing. Then foil, gap along the slats and lining.

Regardless of the material of the walls of the bathhouse, the ceiling is insulated in the same way.

When insulating ceilings, foil is mandatory.

Insulation of a frame bath from the inside

To insulate a frame bath, rolled mineral insulation is most often used.

The thickness of the insulation depends on the type of operation of the bathhouse: if you plan to heat it only in the summer, a layer of 5 cm is enough; if you plan to heat the bathhouse all year round, the insulation layer should be 10-15 cm (depending on the climate zone).

To insulate the walls of a frame bath from the inside:

• Insulation is placed in the interbeam space of the structure;
• The next layer is vapor barrier (foil);
• Ventilation gap;
• Sheathing.

The photos below show how I insulated my frame bath Nomad. Insulation – basalt wool.

Insulating a bathhouse from the inside with your own hands: step-by-step instructions.

Foil acts as a vapor barrier, so it is important that there are no even the slightest holes or damage in it, and that all joints are well taped with high-quality tape. The tape is always sold together with foil, and its quality must be checked in the store (glue the tape to the foil and try to tear it off).

Insulating a bathhouse from the inside with your own hands: log house

Insulating a chopped and well-caulked bathhouse from the inside would be a tragic mistake. This is not only pointless and destructive for the walls, it contradicts the very idea of ​​a chopped bathhouse.

Log houses for baths are made for two reasons:

1. To get a classic Russian steam bath, which takes a long time to heat and maintains the required level of heat and humidity for a long time. It is the tree that accumulates heat and moisture and gradually “gives it away”. In this case, the inside of the bathhouse cannot be lined; You will also have to come to terms with the high consumption of firewood.
2. For the image. No bathhouse looks as cool in appearance as a chopped one. But I often don’t want to waste time and firewood; I want the bathhouse to be heated in an hour, so insulation, vapor barrier and clapboard cladding are done. The log house works only as an external frame; the meaning of the material is lost. In this case, it is cheaper and more correct to build a frame bathhouse.

It happens that a person already gets ready sauna from a log house, and various reasons she may be cold. Such a bathhouse can be insulated, but only from the outside.

The pie looks like this:

• insulation;
• wind protection;
• vertical sheathing to create a ventilation gap;
• outer skin.

And you can put foil on the inside and line it with clapboard, not forgetting about the ventilation gap.

• We put foil on the beam and fasten it with a construction stapler;
• We seal ALL joints with foil tape;
• We fill the vertical slats with a thickness of 1-2 cm;
• We fill the lining horizontally, leaving gaps at the top and bottom for air circulation.

In a chopped bathhouse, only the floor and ceiling are insulated!

If the ceiling of a chopped bathhouse is made of thick boards, it is not necessary to use insulation, but then the following is poured onto the ceiling in a cold attic:

• ash;
• sand;
• expanded clay (it is preferable that the granules be different sizes);
• clay coating.

Insulation from the inside of a brick bath

Brick is not the best suitable material for the construction of a bathhouse, but if there is a brick factory somewhere nearby, then brick bathhouses begin to grow like mushrooms. Due to the high thermal conductivity of brick, such a bathhouse requires insulation without fail. Insulation is carried out only from the inside, and to make the bathhouse look cool from the outside, decorative jointing is done.

Typically, the pie of an insulated wall of a brick bath looks like this:

• brickwork;
• waterproofing,
• insulation;
• vapor barrier;
• sheathing

Waterproofing between brickwork and insulation is optional: if the walls are built correctly and waterproofed from the foundation, they will not become damp. If there is no confidence in the walls, then it is better to do waterproofing.

Insulation on brick walls The bathhouse is attached to the frame.

S4sha FORUMHOUSE Member

We build a frame on the wall from 100x40 timber with insulation width increments, fill it with insulation, lay a vapor barrier, sew on 20mm slats and cover it with clapboard.

Our user S4sha’s bathhouse is made of half a brick, but it steams just fine even at -30. Its walls are insulated like this:

• mineral wool;
• vapor barrier (in the steam room - foil);
• ventilation gap;
• lining.

Insulation thickness – 50 mm.

Insulation of a bathhouse made of blocks from the inside

For the construction of a bathhouse, durable and moisture-resistant blocks of expanded clay concrete are preferred. The insulation of such a bathhouse is thought out at the stage of its construction. The most important thing here is to remove the icy mass of concrete from the heating circuit. There is a technology promoted by our user ZYBY, which allows you to solve this problem by constructing a frame-wall from boards with an indentation from the walls of the bathhouse. It is suitable for insulating all baths with stone walls.

To ventilate and dry the space between the frame and the walls, several vents are made in the walls of the bathhouse, at the top and at the bottom outside. The vents are closed while people are steaming in the bathhouse; the rest of the time they are open for drying.

Insulation cake for steam rooms and washing rooms using this technology:

• concrete wall with vents;
• insulation on the frame-wall (with indentation from concrete wall);
• frame-wall;
• foil;
• finishing 50th unedged board(aspen, linden or cedar) to get solid wood in the steam room.

With this approach, there is no need to heat the ice walls. And the insulation will dry out between steaming sessions.

But many owners of a block bathhouse insulate it from the inside traditionally:

• concrete wall;
• insulation (attached to the frame);
• foil;
• ventilation gap;
• lining.

Insulation of a bathhouse made of expanded clay concrete blocks from the inside.

Such a bathhouse needs insulation from the outside as well.

Bathroom floor insulation

Precious bath heat also escapes through the floor, so it also needs to be insulated. To insulate the floor in a bathhouse, it is recommended to use expanded clay as the lightest and most environmentally friendly material.

Expanded clay is poured between layers of concrete floor as follows:

• pour the first layer of concrete;
• wait until it hardens completely;
• expanded clay is poured (layer thickness - 10 cm);
• install reinforced grating.
• pour a layer of concrete;
• make a cement-sand screed.

Summarizing

Good bath - warm bath. And in order for it to warm up well to the required temperature, it is necessary to choose the right thermal insulation and insulate all structural elements.

The bathhouse is also insulated from the inside:

• Windows, doors and all openings - with natural sealants;
• External door– good natural materials.

At FORUMHOUSE the issues are examined in detail and discussed separately. Find out how to do it right outside. Read our article about. Meet our users and find the answer to any question. Watch our video on how to build a full-fledged bath complex.

External or internal insulation baths are a must. This reduces fuel consumption and slows down the cooling process of indoor air. If the structure is not insulated, then it will take several times longer to heat the steam room to the desired temperature.

We insulate the bathhouse with our own hands

Before constructing a building, it is necessary to calculate the means and forces for thermal insulation. It is best if the insulation process begins during construction, more precisely, from laying the foundation.

Basic requirements for materials for bath insulation

Cheap solutions (impregnations, septic tanks) will not fulfill the role of good thermal insulation. Of course, protection from moisture is necessary in any case, but this is a separate task. It is necessary to insulate the bathhouse premises separately, using materials specially created for this purpose. Most attention is usually paid to the inside of the washroom and steam room. The selection of insulation and thermal insulation is done taking into account the rough construction material.

One of the most important requirements for insulation materials - non-toxic. Because in a bathhouse under the influence of temperatures, toxic materials can easily cause poisoning. Non-hygroscopicity is also important; insulation should under no circumstances absorb moisture.

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When choosing a specific material, you need to rely on the following characteristics:

• resistance to steam and high temperatures;
• good fire-fighting properties;
• environmental friendliness;
• low hygroscopicity;
• ability to maintain shape for a long period.

Types of insulation for baths

All insulation materials presented on the construction markets are divided into three conditional groups:

Of course, 50–60 years ago they used only natural materials that were brought from nearby forests. This is foam, tow or moss. Today these are already partly elite types of insulation; they cost serious money due to the need to collect them manually. Many fans of natural materials insulate their buildings with rolled jute felt or tow. This material can be purchased at construction stores. As for moss, there are conflicting opinions regarding its use. They say that moss is not an ideal material for insulation because it encourages the growth of mold or fungi. However, the moss itself does not have such properties; most likely, the fungus is formed due to improper cutting wooden structure or poor ventilation.

How to work with different types of buildings

Installation procedure and required volume work depends on the material from which the bathhouse is built.

Insulation of log houses

When working with timber or logs, you need to take into account the drying time, which can be 10 cm or more. Plus, cracks form between the crowns of such buildings, and cold air blows into them. It is best to insulate a log house made of round timber or an assembly of timber with jute fiber.

This material does not rot and has excellent thermal conductivity. Jute itself is a very fragile material, so manufacturers try to add flax fibers to it. But if you already have crumbly material, you can perform classic caulking. It will be so less work, and the building will probably retain more heat.

If you decide to create a bathhouse from wood, then the insulation is laid during construction. It is better to isolate all problematic parts of the log house in the process.

The work is performed in the following sequence:

Insulation of buildings made of brick or foam blocks

If log houses are insulated using a primitive method, then you will have to work hard with the masonry. And there are more financial investments specifically for working with insulation. Additional thermal insulation is necessary, otherwise a well-heated room will cool down within hours. It’s better to work and invest in materials than to stock up on fuel the rest of the time.

A common and proven method is a suspended ventilated façade. The work process does not take place from the inside, but from the outside of the bathhouse. It is necessary to attach layers of insulation to the walls, and cover the top with siding or clapboard. In the gap between the layers, a space is formed filled with air, thanks to which condensation will not form on the walls and rotting and dampness will not follow.

The width of the frame for the ventilated façade is made larger than the thickness of the insulation, so a air gap, preventing the formation of condensation

For brick building The following trick is often practiced: a steam room is made from wood indoors. Brick absorbs heat for a very long time, so small room It’s easier to warm a steam room naturally if you use a small frame.

A 10x10 beam and sheathing are enough. The process of insulating such an improvised steam room inside large sauna simple:

You can make it even simpler: do not use timber, but instead immediately attach the insulation to the frame. In this case, an additional layer of waterproofing will be required.

Calculation and selection of materials and tools

We insulate all surfaces of the steam room, wash room and dressing room. And for this you will need:

1. Roll paper (for ceiling and walls).
2. Beam-rail (5x5, for installing insulation on the ceiling and walls).
3. Foil.
4. Insulating tape.
5. Self-tapping screws.
6. Aluminum adhesive tape.
7. Insulation calculated based on the area of ​​walls, ceilings and floors.

Tools you will need:

• screwdriver;
• level and plumb.

Do-it-yourself insulation of a bathhouse

Any stages of insulation are always carried out according to the golden rule - start from the ceiling and end with the floors.

Ceiling insulation

Before you start working with the ceiling, you need to understand that in the steam room you need 2 times more material. After all, we are not working on a sauna, but on a Russian bathhouse, where the steam should linger as long as possible.

The technology is like this:

1. We cover the entire surface of the ceiling roll paper overlapping
2. We fix the bars on top of the paper, the insulation will already lie between them.
3. Cover it all with foil. It will become a normal, safe insulator. But it is necessary to install foil without saving. It is important that all connections are closed.

   The foil layer reflects heat, so the use of such material for a bath is necessary

4. We seal all joints on the foil with aluminum tape. Typically, foil for insulation is included with the material.
5. We secure the edges and joints with several layers of adhesive tape. We check our work for leaks. If there is not enough money for such insulation, then the foil is sometimes replaced with cardboard or thick paper without paint.
6. Next, we install layers of insulation on the foil between the closed bars.

   On the ceiling, it is better to lay insulation in two or three layers, overlapping the joints

7. We cover the front part of the ceiling with wood paneling. This material is resistant to elevated temperatures and will not tar.

For a frame bathhouse, it is necessary to put insulation on the ceiling and walls, but for timber and log baths you can do without it. For example, if a bathhouse is made of logs, it is enough to first sew up its ceiling with thick boards - at least 6 cm. Mineral wool is most suitable as insulation for the ceiling - you just need to lay it in a layer of at least 15 cm.

Video: insulation and finishing of the ceiling from the inside

Wall insulation

The best solution for wall insulation is a constructor made from materials that can be easily repaired or replaced.

The structure of the bathhouse wall insulation resembles the structure of a roofing pie

Video: insulation and foil upholstery of a steam room

Bathroom floor insulation

And finally, let's work on the floor. After all, it’s usually through him that he leaves the premises. a large number of heated air. Expanded clay is most often used as floor insulation - it is inexpensive and reliable insulation which prevents the formation of mold and condensation.

It’s cheaper, of course, to spill everything with slag, but expanded clay is more environmentally friendly and weighs less. When installing wooden floors the material is placed between the lags. If a concrete floor is poured, then expanded clay is laid between each concrete layer.

Let's look at the usual cycle of work on insulating a concrete floor.

Video: features of installing a concrete floor in a bathhouse

In addition to walls, floors and ceilings, they also pay attention to the insulation of doors, windows and window openings. They are being processed silicone sealants. External doors are usually insulated natural materials. And it’s not customary to save on them, otherwise in a few years, or even next season, you’ll have to redo everything.