Both builders and manufacturers of insulation materials argue about whether it is possible to insulate houses from the inside, but everyone agrees that in most cases, insulating walls from the inside will not be the best solution - if possible, it is better to do external thermal insulation of the house. However, if there is no choice, you should carefully study the features and rules for choosing and installing insulation so that the internal thermal insulation is effective, safe and durable. How to insulate the walls of a house from the inside and how to do it?

Indoor walls can be insulated only in cases where the facade of the building cannot be changed or there is no access to the outer surface of the wall. It is recommended to avoid insulating walls from inside the house because it has a number of significant disadvantages:

• The dew point moves indoors. The wall begins to freeze through its entire thickness, the cold meets warm air at the junction of the wall and the insulation, and condensation forms on its surface. It has a lot negative consequences: on wet wall fungus may develop, effectiveness thermal insulation material decreases, it lags behind the wall, collapses; In addition, the decorative finish deteriorates.
• A frozen wall loses its heat-accumulating properties. It becomes difficult to control the air temperature in the room - it begins to warm up faster due to work heating devices or exposure to direct sunlight through a window and cool faster when ventilated.

• It is impossible to provide 100% thermal insulation, since it will not be possible to insulate the walls from the inside over their entire surface - cold bridges will remain at the intersection of the external wall with internal partitions.
• The humidity in the room increases. This, again, contributes to the formation of mold and is generally harmful to health. To ensure good air exchange, you will have to constantly ventilate the apartment, which will lead to increased heating costs.
• Decreases usable area apartments - especially if, due to climatic conditions in the region, it is necessary to install a thick layer of insulation for the walls of the house.
• If thermal insulation work is not carried out before starting renovations in the room, all decorative finishing has to be dismantled, which complicates the work and makes it more expensive.

The most dangerous consequence of internal thermal insulation is condensation inside the room, which leads to accelerated destruction of walls and damage to finishing materials. This can be partially avoided by accurately calculating the required thickness of the insulation layer and choosing the right material. Thus, insulating a house from the inside is expensive and unsafe, but sometimes unavoidable.

How to avoid condensation

If you still had to deal with internal thermal insulation, then before you figure out how to insulate the house from the inside, you need to understand whether negative consequences can be avoided. Dry walls inside the house can be ensured by protecting the area where the dew point forms from moisture.

To do this you need:

• Use a high-quality multi-layer membrane for waterproofing. Plastic film will not work. In addition, it must be laid correctly - overlapping, with sealing of the joints.
• Choose insulation with minimal vapor permeability. If the material from which the walls of the house are made is higher, then the moisture formed between the insulation and the surface of the wall will not condense, but will come out.
• Install the insulation close to the wall. To do this, glue must be applied to it in an even, continuous layer, and not in beacons.

• Provide forced ventilation of the room, as well as install windows with air exchange valves.
• Accurately calculate the thickness of the insulation layer. You cannot rely on average parameters, since it is possible to properly insulate walls only by taking into account all the characteristics of a particular material, room and climatic features of the region.
• Treat the insulated wall with antifungal and antibacterial agents. You can use a special antiseptic primer. You can start working only after the wall surface is completely saturated and dry.

When insulating an apartment from the inside, it is very important to get rid of all possible cold bridges. They form at the joints of insulation slabs and in those places where the wall connects to ceilings and internal partitions. To improve the efficiency of insulation, it is necessary to lay thermal insulation material extending onto the internal walls, floor and ceiling.

Selection of thermal insulation material and insulation installation technology

Mineral wool

It is not recommended to choose this material, since it will not be effective enough to insulate a wall in an apartment from the inside. However, cotton wool is the easiest to use and cheaper than other options, so they often resort to using it.

Vata exists in two versions:

• rolls;
• basalt slabs.

If there is no other choice, it is better to use cotton wool in the form of slabs - this insulation is denser, has better thermal resistance, and does not settle over time. The rolled variety of cotton wool has too high a vapor permeability rate and absorbs moisture well, so the walls insulated with it will probably get wet. However, there is a possibility of moisture penetrating under the insulation when using slabs with a density of 75 kg/m3 or more. You can reduce the risk of condensation by using good vapor barrier material and installing the insulation correctly.

Insulation from the inside with mineral wool is carried out as follows:

1. At a distance from the wall surface, a frame is constructed from wooden slats or aluminum profile.
2. The first layer of mineral wool is laid under the frame. It is necessary to glue it to the wall as tightly as possible.
3. The second layer of basalt wool slabs is laid between the frame slats with the joints offset relative to the first layer.
4. A layer of vapor barrier membrane is laid.
5. Drywall is mounted on the frame.

Due to the nature of mineral wool, vapor barrier needs to be given special attention when internal insulation of the walls of the house is carried out. Cannot be used plastic film, a more efficient vapor-tight multilayer membrane is needed. It can be attached to a wooden frame with a stapler, always with an overlap; It is glued to the profile with double-sided tape.

The overlap when laying the membrane should be at least 100 mm, the joints should fall on the frame elements and be securely glued. The vapor barrier should extend to surfaces adjacent to the wall. The places where the membrane comes into contact with surfaces should be additionally sealed. Liquid sealant is applied to a wall, pipe or other structure, then a membrane is pressed to the junction; After the sealant has dried, the membrane is fixed with tape.

High-quality installation will reduce, but will not completely eliminate, the risk of condensation when using mineral wool. It is better to consider other, polymer, types of insulation for walls from the inside.

Expanded polystyrene and EPS

Expanded polystyrene, or foam plastic, is much better suited for insulating walls in an apartment from the inside. This is facilitated by the following characteristics:

• low thermal conductivity due to the presence of air in the cells of the material;
• low vapor permeability and almost no hygroscopicity;
• high strength, including compression and tensile strength;
• small weight;
• Easy to process with your own hands - you can cut the material with a regular knife.

Regular or extruded polystyrene foam of sufficient density, even with a relatively small thickness, will provide sufficient effective thermal insulation premises. It is recommended to choose it not only because of its ease of installation, but also because it can be used to insulate an apartment from the inside most effectively: it does not allow moisture to pass through, so condensation will not appear. The main thing is to properly glue the foam boards, sealing the joints and ensuring a tight fit to the wall.

When using expanded polystyrene for thermal insulation of residential premises, it is important to take into account some of its disadvantages. So, it practically does not protect against noise. In addition, when burned, it releases toxic compounds into the air. Another disadvantage is the high cost of EPS, but it is compensated by the fact that there is no need to lay a vapor barrier membrane, and you definitely won’t have to redo the thermal insulation due to the destruction of the insulation, as is the case with improper installation of stone wool.

Polystyrene insulation for walls inside an apartment should have a high density - 25–30 kg/m3. The density can be determined by the marking, which looks like “PSB-S-25”, where 25 means the desired parameter.

Installation of polystyrene foam boards on an internal wall is carried out as follows:

1. The wall surface is cleaned, primed and dried.
2. Insulation boards are glued in rows with offset joints. It is advisable to use polyurethane glue, which is applied to the entire surface of the polystyrene foam board.
3. Additionally, the plates are fixed with special plastic dowels.
4. The joints are sealed silicone sealant, large gaps are filled with polyurethane foam.
5. Reinforcing fiberglass fabric is overlapped over the insulation. On top of it you can lay plaster for decorative finishing. Another option is to immediately glue drywall instead of reinforcement.

There is another installation method. At the long ends of the PPS slabs, grooves in the form of corners are selected. The two slabs are joined and the seam is sealed. Then it is inserted into the groove wooden board. The resulting structure is fixed to the wall using self-tapping screws. This method is more convenient, since insulating the room in this case can be done faster and more economically. In addition, the boards can be used as a frame for attaching drywall.

Should we consider other options?

There are also more modern insulation materials for walls from the inside - polyurethane foam, thermal insulation plaster, foamed polyethylene and even ceramic-based thermal paint. Among them, only the first material is worthy of attention; other options are actually of little use for insulating an apartment from the inside. Polyurethane foam is ordinary foam, similar to mounting foam, which is applied to the surface to be insulated using a special sprayer.

The good thing about the material is that it reliably adheres to any surface, penetrates into all cracks, is monolithic and vapor-tight. It hardens quickly and does not form any cold bridges. However, polyurethane foam is quite expensive, and you won’t be able to work with it yourself.

Thus, if you need to insulate walls from the inside, it is best to use expanded polystyrene. This heat insulator has the most suitable characteristics, and installing it yourself is not difficult. If the insulation technology is followed, it will effectively protect the house from the cold.

One of the leading places on the building materials market belongs to the famous French brand Izover, under whose brand a whole series of insulation materials are produced for the thermal insulation of a house. The product has excellent performance characteristics, which were appreciated by consumers who used it to insulate their home. The material is excellent for indoor and external thermal insulation wooden buildings. Insulating a house with Izover is an excellent way to eliminate heat loss, prevent the entry of cold masses into the room, and increase the comfort of living. In the article we will look at the types and characteristics of heat insulation, and also focus on insulation methods.

The manufacturer produces several product lines, including universal insulation, which are suitable for thermal insulation of the entire structure. There are also highly specialized materials designed to insulate one or another part of the house: internal and external walls, roofs, floors, baths.

Universal insulation

This group is divided into:

1. "Optimal". The material is made of basalt fiber. It is designed for thermal insulation of all parts of a frame house, with the exception of the foundation. They can be used to insulate roofs, partitions, walls, and floors along joists. It has low thermal conductivity, is not flammable, and can be laid without additional fasteners.
2. "Pro." The insulation is made of fiberglass mats. Can be used for thermal insulation both inside and outside log houses and frame structures. It has very low thermal conductivity. Safe and non-flammable insulation.
3. "Classic". It is also based on fiberglass. Available in mats and slabs with a porous structure, due to which it has good thermal insulation characteristics. Applicable for different structural elements houses made of logs and timber, except for surfaces with high loads, including the foundation. It has low strength, so it cannot be used under screed and plaster.
4. "Extra". Fiberglass slab insulation is characterized by increased strength and elasticity, resistance to compression. It has the lowest thermal conductivity compared to other materials from the manufacturer, due to which, when used, heat loss is minimal.
5. « Warm home" This insulation is made from recycled fiberglass. It is suitable for thermal insulation of any parts of the structure. The material goes on sale in the form of slabs, which are convenient to use for vertical surfaces, and rolled mats used for insulating the floor between joists and interfloor ceilings.

Insulation materials for highly specialized work

Among the materials produced under the Izover brand, it is worth mentioning highly specialized mineral wool insulation materials, which are divided into various groups for individual areas of application:

1. Facade insulation. This group of materials is intended for insulating facades under plaster. wet method. The name of each insulation necessarily contains the word “facade”. They are sold in slabs and are made of basalt or fiberglass.
2. Insulation for external and interior walls wooden house. This group includes materials that can be used for thermal insulation of suspended structures: under lining, siding, blockhouse and others. All of them are made of glass fiber in the form of slabs, less often in the form of mats.
3. Thermal insulators for roofing. Materials for this purpose pass additional processing, providing increased moisture resistance. They are made from basalt and glass fibers in the form of slabs and mats.
4. Materials for floor insulation. Products in this group are distinguished by increased strength and rigidity, they can withstand increased loads well. They are used for flooring with joists and floating floor structures.
5. Insulation for baths and saunas. Main distinguishing characteristic from other groups - a two-layer composition, one layer is mineral wool, the second is a foil coating. The material simultaneously performs two functions - insulation and vapor barrier.

Pros and cons of the material

Despite the fact that each product has its own specifics, it is possible to identify common positive and negative aspects of all Izover brand insulation.

Advantages:

• low thermal conductivity;
• good sound absorption;
• high degree of vapor permeability;
• water resistance;
• non-flammability;
• light weight of slabs.

However, the material also has some disadvantages:

1. Formaldehyde resins are used to bind the components, which calls into question the environmental friendliness of the insulation.
2. During installation, small particles of material may enter the respiratory tract, so the use of protective equipment is mandatory.
3. In direct contact with water, the insulation absorbs moisture, which requires good waterproofing, especially when laying the material on the facade and roof of a log house.

Thermal insulation of log walls with Izover

1. Mounted on walls wooden frame from beams, the distance between the posts should be 10 mm less than the width of the insulation.
2. Insulation material is laid in the gaps between the posts. It should fit very tightly, usually no additional fixation is required.
3. A vapor barrier membrane is spread horizontally on top of the thermal insulation. The canvases are laid overlapping, and their joints are sealed with adhesive tape.
4. A counter-lattice is mounted on the racks to create an air gap, and sheets of drywall, lining or other finishing material are fixed to it.

According to these instructions, walls are insulated both outside and inside a wooden house.

How to insulate a roof with your own hands

1. Wooden posts are installed at a distance of 60 cm from each other.
2. A windproof membrane is spread over the frame; it is necessary that it completely covers inner part roofs and wooden sheathing elements.
3. The width of the insulation roll is 1220 mm; cutting it in half produces two strips of 610 mm each.
4. The cut parts are installed between the bars; due to their size, they will fit snugly against the racks.
5. The entire insulating structure is covered with a vapor barrier film.
6. To create a ventilation gap, a counter-lattice is installed, which is then covered with a decorative coating.

How to insulate a floor along joists with slab material is described in detail in the article. Work with Izover is carried out in a similar way. Here we will describe the main points of wet insulation.

1. The concrete base is covered with a waterproof film.
2. A special damper tape is installed along the entire perimeter of the room; it should cover part of the floor and the wall, while its height should be 15 cm higher than the level of the screed.
3. Insulation boards are laid.
4. To protect the material from moisture penetration, another layer of waterproofing is laid on top of the thermal insulation; the sheets should overlap each other by about 20-25 cm.
5. The cement screed is poured, after it has completely dried, the excess tape is cut off and the finishing floor covering is laid.

How is thermal protection of a bathhouse performed with Izover

The work is carried out in the following sequence:

1. The first stage of work is the installation of frame sheathing, as indicated above.
2. Insulation is placed between the vertical posts. The foil side should face outward to provide a reflective effect.
3. The heat insulation boards are glued together with adhesive foil tape.
4. Additional slats 2.5-3 cm thick are mounted on top of the insulation perpendicular to the posts of the main frame. They will press the insulation more tightly to the wall and also create a gap between the insulation and the decorative cladding.
5. The final stage is covering the walls with clapboard, which is attached to the counter-battens.

Instead of a conclusion

Despite the fact that Izover is an easy-to-use material, insulating a house with it is not as easy as it seems. In thermal insulation of log and timber house There are many nuances known only to specialists. After all, wood is a living material, and working with it is quite difficult, so you should not rely on your own strength in this work.

The Master Srubov company offers its thermal insulation services wooden houses residents of Moscow and the region. We will choose best option insulation, we will make an accurate calculation of materials and carry out all the work with high quality. We have already insulated hundreds of houses and received grateful reviews from our clients. We will carry out the work at a high professional level and meet the deadlines.

On the page you will find all the ways to contact us.

The building materials market nowadays offers such a wide variety of insulation materials that it often even makes it difficult to choose. They differ in the base material and form of manufacture, in the area of ​​application and, of course, in the reputation of the manufacturing company. The cost of insulation is often quite considerable, so it is understandable that consumers want to give their money for a guaranteed quality product. This means that it is best to choose original products widely famous brands, among which “Isover” (in Russian transcription – “izover”) occupies one of the leading places in terms of the efficiency of thermal and sound insulation of buildings, in terms of its reliability and durability.

Isover insulation technical specifications which will be discussed further in this publication, is widely used in various fields. The materials of this brand are famous effective protection residential, public, industrial, utility buildings and structures from cold, heat and external noise, and there is no doubt about their high quality.

A few words about the insulation manufacturing company “Isover”

The manufacturer “Isover” is a company that is part of the largest international association “Saint Gobain”, which produces a huge and comprehensive range of modern building materials. "Saint Gobain" unites more than a hundred industrial companies and organizations engaged in innovative developments in the field of construction. It's hard to even imagine, but the history of this manufacturer goes back to XVII century– Are there many companies in the world that have already celebrated their 350th anniversary?!

Vast, centuries-long experience, the ability to properly organize the activities of all levels, constant independent development of innovative technologies and much more - all this is the basis for the fact that the manufacturer has become the undisputed leader in the production of materials that allow creating zones of the most comfortable living space.

Saint Gobain works in a variety of areas. These are high-tech materials, ordinary flat glass and created for special application, construction products, which include insulation, drywall and other gypsum-based products, building mixtures, tiles and facade cladding, acoustic panels for walls and ceilings, complex drainage systems, plumbing and sewer pipes, and much more.

In addition to the “Isover” insulation materials discussed in this publication, which are produced in various modifications, the company also produces technical thermal and soundproofing materials under the brands "Isotec" and "Isoroc".

The company has been operating in Russia for more than 20 years, producing various building materials, including mineral insulation based on basalt and fiberglass. The plant for their production has been operating for more than 10 years in Yegoryevsk (Moscow region), and in 2011, as part of a business expansion strategy, Saint Gobain acquired the Minvata plant in Chelyabinsk, which, after a radical re-equipment, is now Insulation is produced based on stone fibers.

All enterprises of this association successfully undergo certification of the international standard of environmental management, therefore insulation materials are considered environmentally friendly products. The company puts its products in the same group for their environmental friendliness as materials such as linen and cotton, and they comply with European and international standards - EN 13162 - ISO 9001, as well as the Saint Gobain group's own, extremely strict standards.

Main types of thermal insulation “Isover”

So, insulation materials from this manufacturer can be made from glass or basalt fibers. Such specific structures are obtained by processing quartz sand, broken glass or minerals. rocks basalt group - their melting and subsequent drawing using TEL fiberization technology. The resulting thin, almost microscopic threads with a thickness of 4–5 microns and a length of 110–150 microns are connected to each other with special resins.

Mineral insulation"Isover" are produced in mats, which are then rolled into rolls, and in slabs. Both may have different thickness and several linear dimensions, depending on their purpose and recommended installation technology.

The main lines of this material are divided into types according to their areas of application in construction and into universal ones. For example, the purpose of many insulation materials is clear from the name:

• "Isover Warm Home Stove"
• "Isover Warm Home"
• "Isover Warm walls"
• "Isover Warm Roof"
• "Isover Sauna"

And the following types can be safely classified as materials of universal purpose:

• "Isover Optimal"
• "Isover Pro"
• "Isover Classic"
• "Isover Extra"

Each of the above insulation materials has its own characteristics that correspond to its area of ​​application. They will be discussed below.

In addition, Isover produces heat and sound insulators for floors, interior partitions, ceilings and suspended systems, and materials for walls are divided into those used for internal surfaces and for building facades.

There is another criterion for the Isover division of insulating materials - by rigidity. The designation has alphabetic symbols applied to the packaging, and its interpretation is given in the table below. This parameter is closely related to such characteristics as the density of the material, its thermal conductivity, and the degree of its compression in the original packaging (many types, after opening the packaging, significantly increase in thickness of the plate or mat).

Table of division of “Isover” insulation by degree of hardness:

Insulation marking	Average density, kg/m³	Thermal conductivity coefficient, W/m×°K	Compression ratio in original packaging
KT-II– elastic mats in rolls	11÷13	0,041	1:4
CT– elastic mats in rolls	17	0,036	1:4
KL-A– elastic plate	17	0,041	1:1,5
KL– elastic plate	19	0,033	1:1,4
RKL– rigid board reinforced with fiberglass on both sides	60	0,030	No
RKL-A– windproof rigid slab (with tongue-and-groove connection)	60	0,030	No
RKL-EJ– plate of increased rigidity (with tongue-and-groove connection)	95	0,031	No
SKL– semi-rigid slab	50	0,031	No
VKL– hard plate	130	0,032	No

General advantages and disadvantages of Isover insulation

Before moving on to a detailed consideration of the technical characteristics of each type of Isover insulation, it makes sense to obtain information about them general features, which are inherent in each of these products.

The positive characteristics of this material include the following qualities:

• Low thermal conductivity allows the heat generated by heating units to be retained in the house for as long as possible, which means that less fuel will be spent on heating the building, and the owner will save a decent amount on its payment.
• A high level of absorption of sound waves - this quality will reliably protect the house from external noise, and rooms (when using the material in the construction of partitions) - from extraneous internal sounds. Good performance is achieved thanks to the structure of the material, since the air gap between the fibers is capable of absorbing vibrations. In fact, any of the Isover insulation materials performs two functions at once: it thermally insulates the room and makes it as quiet as possible. But in addition, the manufacturer produces a material specifically designed for noise protection.
• A high level of vapor permeability is one of the most important qualities for insulation. This material is also called “breathable”, since it does not collect or retain moisture in its structure, which means that it will not create a favorable environment for the appearance of pathogenic microflora, and the walls will not become damp. In addition, the property of freely transmitting water vapor makes the insulation more durable in its direct functionality, since the thermal conductivity of an over-moistened material sharply increases and it becomes unable to provide proper thermal insulation building structures.
• The non-flammability of Isover heat insulators makes them absolutely safe. The material is classified according to the NG flammability scale, that is, according to the highest level of fire resistance, which means it can be safely used in the construction of frame, cobblestone and log houses.
• “Isover” - slabs and mats are lightweight, so they can be used for insulation of buildings in which excessive load on load-bearing structures is unacceptable.
• The service life of insulation, subject to installation technology and operating rules, is 50 years or more.
• “Isover” insulation materials are treated with water-repellent agents, that is, water-repellent compounds, so they have a fairly high moisture resistance.
• Affordable price. Compared to other similar materials, Isover products have a price that is quite acceptable for a family with an average income.

However, the heat insulators from this manufacturer also have their own “disadvantages”, which for some may be significant, so they also need to be mentioned:

• Since the binders for basalt and glass fibers are usually phenol-formaldehyde resins, the material cannot be called absolutely clean from an environmental point of view. The fact is that over time, such compounds can begin to be released into environment toxic fumes hazardous to human health.

Despite the fact that the manufacturer positions its products as absolutely “clean”, this still has to be treated with a certain amount of distrust. They have not yet gotten rid of binding resins - and although the emission of formaldehyde has indeed been reduced to a possible minimum, it is too early to talk about its complete absence.

It should be noted here that almost all insulation of this type includes these binders. There are certain exceptions, but they are still so expensive that not every homeowner can afford such thermal insulation.

• Despite the fairly high moisture resistance, it is impossible to exclude waterlogging of the material in direct contact with water. Thus, a thermal insulation structure, for example, on a facade or on a roof, must also include a reliable waterproofing layer.
• Since for the manufacture of any mineral wool the finest fiber is used, which has a relative rigidity, during installation its smallest particles can get into the respiratory tract and eyes, as well as stick into open areas skin. Therefore, this factor complicates the process somewhat. installation work due to the need to use protective equipment.

In addition, when insulating a house internally, mineral wool must be hermetically sealed with a dust-proof material so that fiber particles do not enter the air of living spaces.

• The manufacturer calls the advantage of insulation materials their non-flammability. However, it should be noted that some types of insulation (this applies to a greater extent to foil ones) are not non-flammable, but self-extinguishing, that is, they do not allow fire to spread. They can be used for buildings raised from any material, but at the same time complying with the requirements for ensuring resistance fire safety, prescribed in SNiP 01/21/97.

Read interesting information, in our new article on our portal.

Characteristics of thermal insulation materials “Isover” and recommendations for their use

Now, having familiarized yourself with the information about the main “pros” and “cons” of “Isover” thermal and sound insulators, you can move on to considering the detailed technical characteristics of each of them.

Prices for “Isover” insulation

Isover insulation

Universal insulation materials "Isover"

The company produces not only insulation materials for narrowly targeted applications, but also universal ones that can be used for different designs buildings. These materials include: “Optimal”, “Profi”, “Classic” and “Extra”, as well as “Warm House Stove” and “Warm House”.

Their technical and operational characteristics are given in the table:

	"Isover Optimal" (stove)	“Isover Pro” (mats in rolls)	"Isover Classic" (slabs)	“Isover Classic” (mats in rolls)	"Isover Extra" (stove)
	0.037÷0.040	0.036÷0.040	0.038÷0.041	0.038÷0.041	0,034
	45	45	54	54	55
	1,0	1,0	1,0	1,0	1,0
Vapor permeability mg/m×h×Pa	0,3	0,3	0,55	0,55	0,55
Insulation density, kg/m³	28÷36.5	28÷36.5	15,0	15,0	20,0
Flammability group	NG	NG	NG	NG	NG
Thickness, mm	50; 100	50;100;150	50; 100	50	50; 100
Width, mm	600	1220	610	1220	610
Length, mm	1200	5000; 5000; 4000	1170	6150; 8200	1170
	0,288	0,61; 0,61; 0,73	0,5; 0,5	0,75; 1,0	0,5
	5,76; 2,88	12,2; 6,1; 4,88	10,0; 5,0	15; 20	10,0; 5,0
	8; 4	2 (20 slabs); 1 (10 slabs); 1 (8 plates)	14; 7	2	14; 7

"Isover Optimal"

“Isover Optimal” is a universal material made from basalt fibers, which is used for insulation and sound insulation of all sections of a frame house structure, except for the foundation - this is the roof, ceilings, walls, partitions and floors along the joists.

In this option, in accordance with its name, we found the optimal combination of various material qualities:

— low thermal conductivity and excellent elasticity;

— simple installation that does not require additional fasteners;

— multifunctionality of use;

• The first step is to install timber racks with a pitch of 590 mm on the insulated surface or in the frame. This distance “in the clear” will help the slabs of heat and sound insulating material to securely fasten against the surface. The thickness of the beams of the racks or logs should be equal to the thickness of the heat insulator.

• The next step is to install insulation boards between the sheathing elements in one or two layers, which need to be pressed at the ends.
• If the wall of a frame house is insulated, then the insulation is covered with a wind-waterproof membrane on the outside, and with a vapor barrier film on the inside. These materials are stretched horizontally along the frame, starting from the bottom line of the wall, and secured to the frame posts using staples and a stapler. The top sheet must be overlapped with the bottom sheet by 120÷150 mm; the joints of the membranes must be sealed by gluing moisture-resistant adhesive tape on them.
• After this, a counter-lattice is attached to the frame, on top of the film, onto which the facing material. Thanks to this approach between insulation and decorative finishing a ventilation gap is created, facilitating the spontaneous removal of water vapor and evaporation of condensate.
• The final stage is to attach it to the frame structure, first from the street side, then from the inside of the house.

"Isover Pro"

"Isover Pro" is made from fiberglass in the form of mats rolled into rolls. This insulation is also universal, as it can be used for thermal insulation of roofs of various shapes, walls from the inside and outside, frame walls, attic floors, floors, suspended ceilings, as well as soundproofing of interior partitions.

This insulation has its own advantages that distinguish it from other Isover products:

• "Isover Pro" has one of the most low indicators thermal conductivity from all materials from this manufacturer.
• Due to the fact that special markings are applied to the mat, it is convenient to cut. At the same time, even if a non-standard structure is insulated, a minimum of waste remains from the material.
• The insulation is produced in different thicknesses - 150, 100 and 50 mm.
• This version of the heat insulator belongs to the “NG” group in terms of flammability.
• The manufacturer positions it as a material safe for human health.

Installation work using this material is easy and quick, since the roll on the packaging has the markings necessary for cutting. Therefore, the mats are cut to the required width without unrolling the roll.

• The first step is to install racks with a standard pitch of 600 mm for sheathing. The roll width is 1220 mm, it is cut in half and two strips 610 mm wide are obtained. Thanks to this size, the mats will be tightly installed between the posts or laid apart between the joists.
• The cut roll is released from the packaging, unfolded and installed between the frame elements. If the insulation strip is not additionally cut across the slabs, this will help avoid the formation of cold bridges.
• The non-standard arrangement of the frame posts will complicate installation. In this case, before cutting the mat, it is necessary to measure the distance between the frame elements, not forgetting to add 5 mm to the resulting distance for spacer on each side.
• If insulated or attic structure, then before installing the insulation, a windproof film is fixed to the outside of the roof.
• After the Isover insulation is installed, it must be tightened from the inside with a vapor barrier, the membrane of which is stretched horizontally, starting from the attic floor.

"Isover Classic"

Due to the fact that “Isover Classic” is universal, it can be used to insulate almost all building structures, excluding the base, foundation and surfaces that bear high loads. They provide heat and sound insulation frame structures- partitions and external walls, roofs and ceilings, ventilated facades and joist floors.

“Isover Classic” is a fiberglass insulation produced in the form of mats in rolls and slabs, with low rigidity. This means that it has a pronounced porous structure, which makes this material a good insulator.

However, this type of insulation does not have high strength characteristics, and therefore is not suitable for installation under screed and for finishing walls with plaster. If you plan to use it to insulate the facade, then only under materials such as siding, lining or slabs fixed to the sheathing.

"Isover Classic" has the following distinctive features:

• A layer of this insulation 50 mm thick is equivalent in terms of heat conservation to brickwork 950 mm thick.
• By using “Isover Classic” as home insulation, you can reduce the cost of heating a building by 40–45%.
• The material performs two functions at once - protecting the house from cold and external noise.
• The installation of the slabs is carried out without the use of additional fasteners - it is installed between the elements of the sheathing or joists and fits tightly to them, eliminating the occurrence of cold bridges.

• If the floor is insulated using joists, it is recommended that they be secured to glassine previously spread on the base.
• The width of the Isover Classic slabs is 610 mm, and the width of the mats is 1220 mm, so the distance between the floor joists or sheathing posts should be 600 mm.
• The roll is cut crosswise in half when packaged. The manufacturer prudently puts markings on the packaging that will make it easy to navigate when cutting the material.
• Then, the insulation boards are laid, and the mats are rolled out between the wooden structural elements. Due to the fact that the heat insulator is 10 mm wider than the distance between the joists, it will fit snugly between them.
• The insulation should fill the entire space between the beams. Only in this case can the desired effect of heat conservation and protection from outside noise be achieved.
• If the insulation is installed in two layers, then the mats of the second layer must be laid or installed with their joints offset by 120÷150 mm relative to the first.
• It is recommended to use the material in combination with a wind-waterproof film and a vapor barrier membrane.

"Isover Extra"

“Isover Extra” is an insulation made of fiberglass in the form of slabs that have increased elasticity with a 3D effect, which allows the material, after being compressed, to straighten out, filling all the free space between the beams or metal profiles in plasterboard systems. In addition, the slabs fit tightly to the wall when insulating vertical surfaces, and are also tightly connected to each other at the joints, which completely eliminates the appearance of cold bridges.

Thanks to these features, Isover Extra insulation is universal and is used for thermal insulation of interior walls, facade surfaces for cladding with brick, siding, lining and decorative slabs, and roofs of various modifications.

“Isover Extra” has a thermal conductivity coefficient of 0.034, which makes it one of the most effective heat-saving insulation materials presented by Isover - its use reduces heat loss to a minimum.

Installation of this type of insulation is carried out according to the manufacturer’s recommendations given above, taking into account the width of the slabs and the distance between the frame elements. The only thing I would like to add is that, thanks to the 3D effect, there is no need to level the insulated surface for installation of “Isover Extra” - due to expansion, it will fit tightly to it.

"Isover Warm House Stove" and "Isover Warm House"

These two thermal insulation materials can also be called universal, since they are suitable for installation on most construction sites. Their main characteristics, which differ slightly from each other, are shown in the table:

Basic parameters of insulation	"Isover Warm Home"	"Isover Warm Home Stove"
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0,040	0,040
Insulation index airborne noise Rw (dB)	45	45
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1,0	1,0
Vapor permeability mg/m×h×Pa	0,55	0,55
Insulation density, kg/m³	11,0	11,0
Flammability group	NG	NG
Thickness, mm	50	50 and 100
Width, mm	1220	610
Length, mm	5490 and 7000	1170
Volume of insulation in packaging, m³	0.67 and 0.85	0.5 and 0.5
Insulation area in packaging depending on thickness, m²	13.4 and 17.1	10 and 5
Number of mats per package, depending on thickness, pcs.	2 and 2	14 and 7

“Isover Warm House Stove” and “Isover Warm House”, as can be seen from the table above, have the same physical and operational characteristics and differ only in linear dimensions and volume. Both materials are made from fiberglass obtained by processing a specially selected mixture of limestone, sand and soda. However, it is more convenient to use slabs for insulation in one area, and mats in another.

• "Isover Warm Home Stove", as the name suggests, is produced in slabs, which are more convenient to use for thermal insulation of vertical surfaces, both inside and outside, as well as for insulation with them

• "Isover Warm Home" It is produced in the form of mats and is sold in rolls. This modification of the insulation is perfect for installation on horizontal surfaces. Yes, they isolate interfloor ceilings, they will well insulate floors above a cold basement, but they are mounted only between the joists, and this material is not suitable for screeding.

Having dealt with the universal “Isover” insulation, you can move on to considering those that are intended for specific areas of the building.

Isover mineral wool for specific applications

For individual areas of thermal insulation of buildings, the manufacturer has developed several types of specific materials. Therefore, to make it easier to understand their models, they should be combined into groups.

Insulation of the facade for further plastering

To insulate this part of the building, several “Isover” materials are used - these are “Facade-Master”, “ Plaster Facade", "Facade" and "Facade-Light". Each of them is designed for specific surfaces, so their characteristics differ from each other:

Basic parameters of insulation	"Isover Facade-Master" (slab)	"Isover Plaster Facade" (slab)	"Isover Facade" (slab)	“Isover Facade-Light” (slab)
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0.036÷0.040	0.038÷0.040	0.037÷0.042	0,034
Airborne noise insulation index Rw (dB)	45	45	45	55
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1,0	1,0	1,0	1,0
Vapor permeability mg/m×h×Pa	0,3	0,4	0,55	0,4
Insulation density, kg/m³	125,0	80,0	125÷155	50,0
Flammability group	NG	NG	NG	NG
Thickness, mm	50, 100, 150,200	50, 100, 150	50, 100,150	50, 100,150
Width, mm	600	600	600	600
Length, mm	1200	1200	1200	1200
Volume of insulation in packaging, m³	0,288	0,288; 0,288; 0,216	0,144; 144; 0,216	0,288; 0,216; 0,216
Insulation area in packaging depending on thickness, m²	1,44; 1,44; 2,16; 1,44	5,76; 2,88; 1,44	2,88; 1,44; 1,44	5,76; 2,88; 1,44
Number of mats per package, depending on thickness, pcs.	4,0; 2,0; 2,0; 1,0	8,0; 4,0; 2,0	4,0; 2,0; 2,0	8,0; 3,0; 2,0

• - this is insulation made from basalt fiber (stone wool), and is sold in slabs of different thicknesses. The material is intended for insulating the facade of residential buildings up to 16 meters high, under thin-layer plaster.

Prices for “Facade-master” plaster

Facade master

• is produced in glass fiber slabs and is innovative material for insulating the building from the outside. This material has a more affordable price than the previous one, but is also intended for installation under finishing plaster solutions, which will be applied to their surface in a thin layer.

• are produced in the form of basalt fiber slabs and are intended for insulating facades. The material is usually laid with the expectation of subsequent finishing with decorative plaster.

• - this option facade insulation made of fiberglass is used for low-rise buildings and is installed under the finishing with a thin layer of plaster. The material is well suited for insulating country houses and cottages. The insulation is characterized by high strength and rigidity, however, it has less weight compared to insulation for a similar purpose.

• Work on insulating the facade using the “wet facade” technology, that is, with subsequent plastering, must be carried out at a temperature not lower than +5 degrees, having previously protected the walls from possible direct ingress of water. Usually, for this purpose, a temporary structure is installed from timber or metal profiles, which serves as a frame for polyethylene film.
• Installation of insulation begins from the bottom of the wall. The slabs are fixed to a pre-primed and dried wall using an adhesive solution. The solution must be applied to the surface of the slab so that contact is ensured by at least 40% of total area slabs

• The plates are glued to the wall, pressed tightly against each other. If, due to the incorrect “geometry” of the walls, gaps of more than 2 mm are formed between them, they must be filled with strips of the same insulation.

• After the glue has dried, the insulation is additionally fixed to the wall with special fasteners, the so-called “fungi”.

• The next step is to cover the insulated surface of the wall with a thin layer of adhesive so that the relief of the slabs can be seen through it. Usually the same glue is used as when installing slabs. After this, a thicker layer is applied, about 3÷5 mm, and it is recommended to go over it with a notched trowel with a low comb.

• After this, without a pause, a reinforcing fiberglass mesh is fixed to the prepared surface, which is embedded in the distributed solution using a spatula (trowel). The mesh must be completely immersed in the solution.
• Next, they proceed to applying a thin (about 3÷4 mm) base plaster layer. This may be a special composition intended specifically for “wet facades”, or again the same installation adhesive for mineral wool. This layer is leveled, smoothed, and when ready, primed special composition for a specific type of decorative plaster.
• After the base plaster layer has dried, decorative plaster can be applied to it.

Materials for insulating walls inside and outside

The next line of Isover insulation includes products designed for thermal and sound insulation of walls both inside and outside. These include such universal materials as “Isover Pro” and “Isover Classic Plate”, the characteristics of which are described above, as well as “Isover Warm Walls”, “Isover Warm and Quiet Wall” and “Isover Standard”, the parameters of which are presented in the following table:

Basic parameters of insulation	"Isover Warm Walls" (slab)	“Isover Warm and Quiet Wall” (mats in rolls)	"Isover Warm and Quiet Wall" (slabs)	"Isover Warm and Quiet Wall Plus" (slabs)	"Isover Standard" (slabs)
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0.036÷0.040	0,034	0,037	0,037	0.035÷0.039
Airborne noise insulation index Rw (dB)	45	50	50	54	45
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1,0	1,0	1,0	1,0	1,0
Vapor permeability mg/m×h×Pa	0,3	0,7	0,7	0,7	0,3
Insulation density, kg/m³	20,0	30,0	30,0	30,0	40÷55
Flammability group	NG	NG	NG	NG	NG
Thickness, mm	50, 100	100	50, 100	50	50, 100
Width, mm	610	1220	600	610	600
Length, mm	1170	5000	1200	1170	1200
Volume of insulation in packaging, m³	0,5; 0,5	0,61	0,288	0,356	0,288
Insulation area in packaging depending on thickness, m²	10,0; 5,0	6,1	5,76; 2,88	7,14	5,76; 2,88
Number of mats per package, depending on thickness, pcs.	14,0; 7,0	1,0	8,0; 4,0	10,0	8,0; 4,0

"Isover Standard"

“Isover Standard” are slabs made from basalt fibers, which are used in multi-layer insulating structures in which the decorative finishing is a block house, siding, lining, facing bricks, and other similar materials. In addition, “Standard” slabs are also suitable for thermal insulation of frame structures, as well as for attic and pitched roofs.

• The material has average density, therefore not suitable for installation under plastering walls.
• The good elasticity of the insulation ensures its tight fit to the surfaces of the walls and frame structure.
• Increased tensile and strength parameters ensure reliable fixation of the plates using special clamping “fungi” fasteners.

"Isover Warm Walls"

“Isover Warm Walls” are heat and sound insulating boards made of glass fibers, reinforced with water-repellent treatment.

This type of insulation is used for thermal insulation of walls from the inside of a building and for external installation under siding, decorative boards, clapboard or facing bricks, as well as for installation in frame structures. In addition, the material is suitable for insulating roofs of various configurations, as well as loggias and balconies.

• The insulation boards are quite resilient and elastic, so they adhere well between the frame posts and do not slip or break during installation.
• Increased moisture resistance allows the material to be used for insulating roofs and balconies.

"Isover Warm and Quiet Wall"

"Isover Warm and Quiet Wall" is made from fiberglass in the form of slabs and mats. Thanks to its porous structure, the material is able to perform two functions, which are reflected in its name.

This “Isover” option is used for internal and external wall insulation, as well as for frame buildings.

• “Isover Warm and Quiet Walls” has an increased vapor permeability parameter compared to other insulation materials, which allows it to “breathe”. Thanks to this quality, a favorable microclimate is created in the premises of the house.
• The materials have high elasticity, so they quickly expand in the frame, filling all the free space.
• When installing slabs or mats in any frame, they do not need to be additionally fixed, since they are perfectly held due to expansion during self-expansion.

"Isover Warm and Quiet Wall Plus"

This version of wall insulation is produced in fiberglass slabs and has characteristics similar to the materials presented above. But its distinctive feature is lower thermal conductivity and an increased sound insulation index.

“Isover Warm and Quiet Wall Plus” is intended for insulating walls from the inside of a building, as well as outside under a decorative layer of siding, slabs, lining or facing bricks. In addition, using additional protective materials, such as wind-waterproofing and vapor barrier membranes, frame structures can also be insulated with these slabs.

Recommendations for internal insulation walls from the manufacturer

Work on installing insulating mats or slabs on the walls between wooden racks or metal profiles is quite simple, with proper marking and installation of sheathing elements.

• The first step is to attach the sheathing to the marked wall. The racks are installed at a distance from each other depending on the width of the insulation material. So, if the width of the slab is 600 mm, then the racks need to be fixed in increments of 590 mm.
• Next, insulating material is installed between the fixed posts. It can be installed in one or two layers, depending on the required thickness.
• If a metal profile is used for the frame, you may have to additionally fix the slabs on the wall with disc-shaped dowels - “fungi”. When installing timber sheathing, there is usually no need for additional fixation of the insulation, since it is securely held due to its self-expansion.

• After all the insulation is installed in its place, it must be covered from the room side with a vapor barrier membrane, which will additionally become a layer that will delay the spread of dust, and small particles from mineral wool fibers will not enter the air space of the premises. The membrane sheets are stretched horizontally, starting from the floor, each subsequent strip is overlapped by 120÷150 mm on the bottom, and their joints are sealed with adhesive tape.
• Next, plasterboard slabs, one of the types of lining or decorative slabs are attached to the frame elements.

When installing insulation using this technology on the external surfaces of walls, the work is carried out in a similar way, with the exception of some points. For example, instead of a vapor barrier, a wind-waterproofing diffuse membrane (which allows water vapor to pass through well) is stretched over the insulation instead of a vapor barrier, and counter-lattice slats are attached to the racks on top of it, which will create a ventilated gap between the insulation and the decorative sheathing. Thus, moisture will evaporate freely into the atmosphere.

“Isover” materials for roof insulation

To insulate the roof, the Isover company also provided several heat-insulating materials, and some of them have already been described above - these are the “Optimal” and “Profi” station wagons. In addition to them, there are highly specialized insulation materials “Isover Warm Roof” and “Isover Pitched roofs and attics,” the characteristics of which will be discussed further.

Basic parameters of insulation	“Isover Warm roof” (mats in rolls)	"Isover Pitched Roofs" (slabs)
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0.037÷0.039	0.037÷0.039
Airborne noise insulation index Rw (dB)	45	45
Moisture absorption during partial immersion in 24 hours, kg/m², no more	0,08	1
Vapor permeability mg/m×h×Pa	0,3	0,55
Insulation density, kg/m³	13÷15	15
Flammability group	NG	NG
Thickness, mm	50; 150	50, 100
Width, mm	1220	610
Length, mm	5000; 4000	1170
Volume of insulation in packaging, m³	0,61; 0,73	0,714
Insulation area in packaging depending on thickness, m²	12,2; 4,88	14,27; 7,14
Number of mats per package, depending on thickness, pcs.	2,0; 1,0	20,0; 10,0

"Isover Warm Roof" And "Isover Pitched Roofs"

Both materials are intended for insulation of roof slopes of different configurations, but have various characteristics, according to release form, linear dimensions and material of manufacture. What they have in common is that insulation materials for this application undergo special treatment using AquaProtect technology, which provides the products with increased moisture resistance.

• "Isover Warm Roof" is made of fiberglass in the form of mats rolled into rolls. They go on sale in plastic packaging, on which markings are applied for ease of cutting the material according to its width.

• “Isover Pitched Roofs” - is made from basalt fibers in the form of slabs, which are compressed and also packaged in polyethylene.

These materials are suitable for thermal insulation of pitched and mansard roofs, and also, by the way, for wall surfaces inside and outside for cladding with decorative panels and facing bricks.

The procedure for installing insulation into the roof truss system is described in the “Isover Pros” section

Insulation and soundproofing of the floor

In order to efficiently insulate floors, the manufacturing company has developed two types of special materials - “Isover Floor” and “Isover Floating Floor”, which have different technical and operational characteristics:

Basic parameters of insulation	"Isover Floor" (slabs)	"Isover Floating Floor" (slabs)
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0,036	0,033
Airborne noise insulation index Rw (dB)	32÷36	37
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1	1
Vapor permeability mg/m×h×Pa	0,3	0,3
Insulation density, kg/m³	125	80
Compressive strength at 10% deformation, kPa, not less	8÷20	8÷20
Flammability group	NG	NG
Thickness, mm	30; 40; 50	20; 20; 30; 40; 50
Width, mm	600	1190
Length, mm	1200	1380
Volume of insulation in packaging, m³	0,173; 0,216; 0,216	0,197; 0,296; 0,296; 0,328; 0,328
Insulation area in packaging depending on thickness, m²	5,76; 4,32; 4,32	9,85; 14,78; 9,85; 8,21; 6,57
Number of mats per package, depending on thickness, pcs.	8,0; 6,0; 6,0	6,0; 9,0; 6,0; 5,0; 4,0

These materials have a common purpose, and therefore similar characteristics. During their development, the manufacturer achieved optimal combination damping properties and mechanical characteristics. Both types of insulation are easy to install, but their installation technologies differ from each other.

The products not only insulate surfaces, but also significantly reduce the noise emanating from the insulated room to the one below, and back.

• "Isover Flor"– these are slabs made of basalt fiber with increased rigidity. They are used for arranging a floating floor, as well as a floor with joists. The design of a floating floor provides greater efficiency in creating a warm and quiet floor, since the insulation in it completely covers the entire surface. The material is adapted to high loads, so it can easily be laid under a concrete screed.

• "Isover Floating Floor"- this version of slabs made of glass fibers is intended to create a “floating” floor - a concrete screed that is not connected to the walls and base. For a tighter connection of the slabs with each other, the manufacturer, at the request of consumers, can produce products with a tongue-and-groove connection. However, jointed boards can only be used on a perfectly level surface.

The products have high strength characteristics thanks to the vertical fiber arrangement technology.

“Floating” is a floor structure that is not fixed to the base, for example, to a floor slab.

If you plan to make a “wet” cement-sand screed covering the insulation, then the slabs laid on the base must be covered with a layer of waterproofing. This material is intended to protect the insulation from moisture penetration from concrete mortar. Waterproofing sheets are laid with an overlap of 200÷250 mm. Waterproofing is also provided between the base and the insulation layer to prevent capillary penetration of moisture into the material.

Prices for Isover flor insulation

Isover flor insulation

In addition, when arranging any room, before installing the insulation, around the perimeter of the room it is necessary to install a damper tape or narrow strips cut from insulation, 10÷12 mm thick, and a height that will exceed the level of the screed by 120÷150 mm.

After the screed has hardened, it will be easy to cut off the excess damper strip. This element of the “pie” structure will enhance sound insulation, since the screed will not be adjacent to the walls and will not directly transmit noise vibrations. In addition, such a damper will keep the screed intact during linear expansion caused by temperature changes.

Isover materials for sound insulation of buildings

To protect the house from external and internal noise, the company produces two types of specific materials - “Isover Quiet House” and “Isover Sound Protection”. However, in addition to them, the above-mentioned universal insulation materials “Classic” and “Profi” can be used for this purpose, which have characteristics quite suitable for this purpose.

Basic parameters of insulation	"Isover Quiet House" (slabs)	"Isover Sound Protection" (slabs)
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0,038	0.038÷0.044
Airborne noise insulation index Rw (dB)	54	54
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1	1
Vapor permeability mg/m×h×Pa	0,7	0,55
Insulation density, kg/m³	15	15
Flammability group	NG	NG
Thickness, mm	50	50; 100; 50; 75; 100
Width, mm	610	610
Length, mm	1170	1170
Volume of insulation in packaging, m³	0,5	0,5; 0,5; 0,714; 0,856; 0,714
Insulation area in packaging depending on thickness, m²	10,0	10,0; 5,0; 14,27; 11,42; 7,14
Number of mats per package, depending on thickness, pcs.	14,0	14,0; 7,0; 20,0; 16,0; 10,0

• "Isover Quiethouse»

“Isover Quiet House” - this heat and sound insulator, made of fiberglass, goes on sale in plastic packaging. The material has a high noise absorption index, therefore it is an excellent means for soundproofing walls and interior partitions.

In addition, the slabs are laid on horizontal surfaces - between floor joists, attic floor beams, in the space between suspended ceiling and floor slab, etc. Such installation will make the rooms not only quiet, but also warm, since the material performs two functions at once.

• "Isover Sound Protection"

“Isover Sound Protection” are slabs formed from basalt fiber that have pronounced elasticity. Thanks to this quality, they are easy to install in a frame sheathing, installed as a partition or mounted on a wall.

Soundproofing boards can be used in combination with other insulating materials, installing them in two layers. This design will be especially effective for frame partitions.

This material is also perfect for attic floors, since the soundproofing layer will not only prevent extraneous sounds from entering the house, but will also retain the accumulated heat, preventing it from escaping through the ceiling.

Most often, walls and partitions insulated with slabs are sheathed, since it is best suited for such structures.

• The slabs must fit tightly to each other or to the sheathing elements, since even small gaps can significantly reduce the level of sound insulation.
• It is best to cover an insulated wall plasterboard sheets- it also absorbs sound waves quite well and resonates much less compared to wood-based sheets - plywood, fiberboard, chipboard, OSB, etc.
• Before sheathing with plasterboard, mineral wool must be covered with a material that does not allow dust, along with microscopic fragments of fibers, into living spaces. At the same time, such a membrane must act as a vapor barrier.
• If used for the frame metal profiles, it is recommended to stick vibration-proofing tape on their outer surface before fixing the drywall, which will also help reduce the noise level.
• The gaps allowed between the plasterboard sheets will reduce the soundproofing effect, so during installation you should try to ensure that they are not more than 2–3 mm. If this cannot be achieved, it is best to use silicone and acrylic-based sealants to seal them, since they also have a soundproofing effect, do not crumble and adhere securely to the surface.

Materials for thermal insulation in baths and saunas

For insulation of saunas and baths, in the range of materials from this manufacturer you can find a specific offer - these are rolled mats with the characteristic name “Isover Sauna”.

This material is made from fiberglass and has a foil coating on the front side. The main characteristics of the “Isover Sauna” are presented in the table:

Basic parameters of insulation	"Isover Sauna", mats in rolls
Thermal conductivity coefficient, at 10˚С, W/m×˚С	0,041
Airborne noise insulation index Rw (dB)	54
Moisture absorption during partial immersion in 24 hours, kg/m², no more	1
Vapor permeability mg/m×h×Pa	vapor-tight
Insulation density, kg/m³	30
Flammability group	G1 based on NG
Thickness, mm	50;100
Width, mm	1200
Length, mm	12500; 6250
Volume of insulation in packaging, m³	0,75
Insulation area in packaging depending on thickness, m²	15,0; 7,5
Number of mats per package, depending on thickness, pcs.	1,0

The features of this thermal insulation material include the following points:

• The mats consist of two layers: the main one, made of mineral wool based on fiberglass, and the outer one, made of foil. In this case, mineral wool is characterized as non-flammable material, and the foil coating belongs to the G1 flammability class, as it can withstand surface temperatures of up to 100 degrees, largely due to the layer of glue that holds the foil. With higher heating, this layer loses its elasticity and, when exposed to direct flame, can ignite, although it is self-extinguishing. To prevent this from happening, and also to make the walls decorative, they are usually lined with wooden clapboard.
• “Isover Sauna” takes on two functions: it is a good heat insulator and at the same time a vapor barrier that protects the mineral layer from abundant evaporation, which is an integral part of a bath or sauna.
• The foil layer has the property of reflecting heat from the walls back into the room, which significantly increases heat conservation, which is so important for bath conditions.

To understand the installation process, you can consider an approximate diagram of the installation of materials:

• The wall of a log house (there may well be any other wall of the bathhouse).
• Timber frame sheathing. In this case, it is installed horizontally, but this is not important.
• Insulation "Isover Sauna".
• Spacer strips creating an air gap.
• Internal lining of premises made of natural lining.

Installing “Isover Sauna” on walls is not very different from installing conventional insulation, except for some nuances:

• The material is mounted between the racks in a spacer, with the foil side facing the inside of the room.
• The joints of the heat insulation plates with the guides and among themselves, as well as the remaining open front part of the guides, must be sealed with foil adhesive tape.

• Mats need to be cut only very sharp knife, otherwise the cuts will turn out uneven and when installing insulation between the racks, unacceptable gaps will form.
• Counter battens perpendicular to the guides are installed on top of the insulation. They will additionally press the insulation to the wall, create a ventilation gap between the foil surface and the decorative cladding, and become the basis for attaching the cladding. The thickness of the slats must be at least 25÷30 mm.
• The final stage is covering the wall with clapboard, which is fixed to the counter-lattice slats.

What thickness of Isover material is required for effective thermal insulation?

We hope that after familiarizing ourselves with the range of Isover insulation materials, the purpose and characteristics of each type, the interested reader will be able to choose optimal material for your needs. But here’s another question: how thick should the insulation be for it to really fulfill its role, so that a comfortable microclimate is maintained in the rooms?

To determine this, you will need to do some thermal calculations. Usually they are carried out by socialists, but for a private developer a somewhat simplified algorithm for determining the thickness of thermal insulation is sufficient. Let's try and you will see that everything is not so complicated.

The calculation is based on the fact that any building structure of a residential building must have a certain parameter - heat transfer resistance. This value (R) is expressed in m²×°C/W, and the larger it is, the higher the thermal insulation capacity of the structure.

Specialists in the field of construction and heating engineering carried out the necessary calculations, on the basis of which standardized values ​​of thermal resistance were established for various regions of the country, in accordance with their climatic characteristics. This suggests that in order to maintain an optimal microclimate in residential premises at any time of the year, it is necessary that the heat transfer resistance of building structures be at least not lower than the normalized one.

The corresponding tables of normalized values ​​are in SNiP, but it will be more convenient to use the diagram map given below.

There is a special formula showing the relationship between the thermal conductivity coefficient of any material, the thickness of its layer, and the resulting heat transfer resistance.

R=h/λ

R– required heat transfer resistance;

h– thickness of a specific layer;

λ – tabular value of the thermal conductivity coefficient of the material from which the calculated layer is made.

• Thus, knowing, for example, the thickness of the wall that requires insulation and the material it is made of, it is not difficult to find what thermal resistance it provides.
• The same calculations are made for other layers of the structure if they affect the overall insulation of the wall. After layer-by-layer calculation, the values ​​are summed up.
• Then the total value must be compared with the normalized value established for your region. The result will be a difference (usually quite impressive), which the insulating material must make up for.
• Well, knowing the thermal conductivity coefficient of the selected insulation, it is easy to determine the required thickness using the formula.

“In words” may seem difficult to some, but with our online calculator, which takes into account the necessary table values ​​and enters the necessary dependencies, the calculation will not be difficult.

The warmth in the house directly depends on many factors, including the thickness of the insulation. The greater its thickness, the better your home will be protected from cold and freezing, and the less you will pay for heating.

Calculate the cost of 1 m2 and 1 m3 of insulation in a pack and you will see that insulating your home with ISOVER quartz-based mineral wool is profitable. The money saved can be spent on insulating your home with another layer of quartz-based mineral wool, thereby making your home warmer, increasing its energy efficiency class and reducing heating bills.

In Russia, only ISOVER produces both basalt wool from rocks and natural insulation based on quartz for insulation of private houses, dachas, apartments and other buildings. Therefore, we are ready to offer our own material for each design.

To understand the best way to insulate a house, you need to consider several factors:

- Climatic features of the region in which the house is located.
- Type of structure that needs to be insulated.
- Your budget and understanding of whether you want the most best solution, insulation with an optimal price-quality ratio or just a basic solution.

ISOVER quartz-based mineral wool is characterized by increased elasticity, so you will not need any fasteners or additional beams. And most importantly, thanks to dimensional stability and elasticity, there are no cold bridges, so heat will not leave the house and you can forget about freezing of the walls once and for all.

Do you want the walls to not freeze and the warmth to always remain in the house? Pay attention to 2 key characteristics of wall insulation:

1. HEAT COEFFICIENTCONDUCTIVITY

2. FORM STABILITY

Find out which ISOVER material to choose to make your home warmer and pay up to 67% less for heating. Using the ISOVER calculator you can calculate your benefits.

How much insulation and what thickness do you need for your home?
- How much does it cost and where is the best place to buy insulation?
- How much money will you save monthly and annually on heating thanks to insulation?
- How much warmer will your home become with ISOVER?
- How to improve the energy efficiency of structures?