How to cut mineral wool insulation. Basalt thermal insulation boards - characteristics How to cut basalt

When insulating the attic roof, you need to remember that from right choice the type of insulation and its proper installation depends on your comfort in further exploitation premises. After all, the roof accounts for most of the area of ​​\u200b\u200ball surfaces in this room. From this article you will learn what materials are best used for thermal insulation of the attic roof. We will also tell you how to install a heater yourself.

Choosing the material for insulating the roof of the attic

There is a huge choice of heaters today: slab, roll, bulk and sprayed. Theoretically, you can use any of them, but practice shows something completely different. Let's see why.

Slag mineral wool

This material is made from blast furnace slag, and is produced in rolls and slabs. The latter is quite suitable as an attic roof insulation. The plates are quite solid, do not settle and do not sag. Slag wool is very hygroscopic, which, on the one hand, is good - the room will "breathe". On the other hand, at the slightest leak of the roof, the material will get wet and lose its heat-preserving properties. Slag wool is relatively fireproof: smoldering begins at 300C °.

Insulation for mansard roof: slag

Roof insulation with stone wool

It is made from volcanic rocks, hence the name - stone wool. One of the varieties of stone wool is basalt. This insulation is an order of magnitude better than slag wool. It has higher performance in terms of sound and heat insulation, fire safety. The value of the coefficient of thermal conductivity of stone wool is 0.12, while for the same slag wool it is 0.48.

Another feature that speaks in favor of basalt wool- the absence of formaldehyde binders in the composition, which cannot be said about other stone wool. Mineral wools are produced with different densities, the numbers in the marking indicate the weight cubic meter material: from 75 to 200 kg per m 3. For warming pitched roof mansard house cotton wool with the lowest density is suitable - they have the lowest thermal conductivity of all.

The better to insulate a mansard roof: basalt wool slabs

Polyurethane foam spraying

The main advantage of the material is ease of installation. PPU is simply sprayed onto the surface. The material has low thermal conductivity, does not absorb water. Insulation of a broken mansard roof with this material is the easiest to do: it does not require the installation of special structures.

The material also has disadvantages. So, the vapor permeability of polyurethane foam is very low, therefore, there must be good system ventilation, ideally it should be forced. And, of course, the price: It is quite high for PPU.

How to insulate the roof of the attic: polyurethane foam spraying

Attic insulation with ecowool

Ecowool is an environmentally friendly material that does not emit any harmful substances during operation. In fact, it is recycled cellulose. Boric acid, which is present in the composition of the material, provides it with resistance to fungal infections. In addition, ecowool is fireproof, rodents do not settle in it, heat and sound insulation indicators are quite high.

The main disadvantage of ecowool is that special equipment is required for its application, which means that it will be problematic, if not impossible, to make attic insulation with your own hands.

Warming technology mansard roof: wet and dry ways

Attic insulation: a video on how ecowool insulation works.

Styrofoam perfectly retains heat and protects the room from noise. The material absorbs water, but very little. And, by the way, the foam "breathes", contrary to popular belief. The rather low price also speaks in favor of the material. If we talk about the minuses - the foam plastic emits toxic gases during combustion, its ignition temperature is quite low. In installation, the only drawback is fragility.

Insulation of the mansard roof with foam

Roof insulation with mineral wool

First of all, we examine the roof of the attic from the inside. Waterproofing is laid under roofing material even during the installation of the roof, however, do not forget about the possibility of damage from time to time or poor-quality installation. If there are traces of leakage, we eliminate the cause.

We count required amount mineral wool. Plates are produced in different thicknesses, and in addition to this, it will be necessary to take into account a lot of details. The easiest way is to use http://rss-master-ram.ru/calculator/tolschiny_uteplitelya/ for this.

Important: for high-quality insulation, the following should be taken into account: the thickness of the mineral wool boards should not be less than the width of the rafters - 150-200 mm. Too much thickness of the insulation will also be a minus - when installing a vapor barrier and finishing materials he doubts, its density will increase, and hence the thermal conductivity.

Installation of insulation and vapor protection

We cut basalt wool slabs. To do this, we measure the distance between the rafters, add 15-20 mm to it. This will be the required width of the piece of insulation. Such an increase is necessary so that the plate is inserted between the rafters by surprise. We lay basalt wool between the rafters.

How to properly insulate the roof of the attic: installation of the first layer

Now we fasten the counter crate across the rafters, and between them we lay the second layer of mineral wool. The slabs of material should overlap the joints of the previous layer and the rafters, this will prevent warm air from escaping through them.

How to properly insulate a mansard roof: the second layer of mineral wool

Correct installation ensures the effectiveness of insulation, so this issue must be taken very seriously. Further in the figure you can see examples of incorrect installation.

Mansard roof insulation scheme

• a) single-layer laying of insulation, warm air escapes at its joints with rafters;
• b) the width of the plates is too large, they overlapped the rafters;
• c) due to the insufficient thickness of the first layer, the plates of the second are bent;
• d) bending of the insulation boards due to their excessive width.

We “shoot” the vapor barrier membrane with a construction stapler to the counter crate, if it is wooden. To metal profile- fasten with self-tapping screws with press washers. This completes the work, you can start warming the walls of the attic, and then finishing the room.

How to properly insulate the roof of the attic: installation of a vapor barrier

Completion of the insulation of the mansard roof from the inside. Video about correct installation vapor barrier membrane:

Main characteristics

Mineral wool is one of the best, simplest and most common materials for insulation and soundproofing walls and ceilings today, and is also known in several other applications. In addition, it is easy to mount, that is, you can independently carry out the insulation of the premises.

Many people do not know how to cut mineral wool correctly without disturbing its structure, in this article we will look at all the ways to properly cut mineral wool, as well as advise on the tools that are best suited for this.

What types of mineral wool are there?

Mineral wool is usually classified according to the principle of the material from which it is made. From this follows the conclusion that mineral wool made from different raw materials also differs in structure - fibers, and, accordingly, in the type of cutting. So there are the following types of mineral wool:

• Glass mineral wool. Consists of melted glass.
• Stone mineral wool. Most often made from various melts rocks.
• Slag mineral wool. The starting material is blast-furnace slag.

In fact, you should pay attention to the fact that sometimes mineral wool is harmful. This is due to the fact that it contains dust and phenol-formaldehyde resins. Therefore, it is necessary to refer to this material selectively, although mineral wool cannot be classified as a human carcinogen.

How to cut mineral wool:

Mineral wool cutting can be carried out both independently at home and using various equipment. Equipment for cutting mineral wool boards can be different. The issue is scale. Mineral wool cutting machine is suitable for serious and large scale - for enterprises, manufacturers, etc. But a knife for cutting mineral wool will become an indispensable assistant in cutting insulating materials at home.

It is important that cutting mineral wool does not damage the fibers, so the equipment must be selected carefully. The cut must be even. At home, cutting mineral wool rolls (the so-called "50s") will be convenient with a cutting knife, but for large ones ("100s") a special hacksaw for heaters will be convenient. At the beginning, its price may seem unreasonably high, but it's worth it. It is important that the work is done properly. Circular cutting of mineral wool can be convenient. The machine for cutting mineral wool can easily cope with such a task.

How to cut mineral wool:

If you do not know how to cut mineral wool at home, we can advise you on excellent tools that are best suited for cutting mineral wool.

So, for cutting mineral wool the best thing fit good, a sharp clerical knife or a hacksaw, carefully cut the mineral wool in the right directions, for greater accuracy, you can draw lines with a pencil or cut directly along the ruler. The process of cutting mineral wool is somewhat similar to cutting foam, only you need to make a little more effort, pressing a little harder on the tool for cutting mineral wool.

What to do with scraps and remnants of mineral wool.

One of the solutions may pleasantly please many (especially firms and large manufacturers). Mineral wool scraps are not useless and can be useful to those who decide to insulate their walls and ceiling in budget option. Scraps can be sold at a low price, and the demand for the product will be very high.

It is also possible to recycle scraps of mineral wool boards. In this case, with the help of special equipment, the remains of mineral wool boards are crushed to granules with the possibility of further recycling.

Mineral insulation has a fibrous structure, the violation of which leads to a decrease in thermal insulation properties. This makes it inefficient to use scissors for thick fabrics or cardboard, as well as table or stationery knives for cutting it. Therefore, the answer to the question of how to cut mineral wool correctly without violating its structure will be useful for beginner builders.

What will we cut

On an industrial scale, special machine tools are used to cut mineral insulation. Consider how to cut mineral wool insulation yourself at home.

Often, a mounting knife is used to cut mineral wool. But it has one drawback - a short blade, which is not suitable for working with thick insulation boards. In addition, the blade becomes dull quickly and needs to be replaced.

Sometimes a special hacksaw is used for wood or metal, and craftsmen found how to cut mineral wool at home - a kitchen serrated knife for cutting bread.

But still, when choosing how to cut stone, glass or slag wool, it is better to use special tools.

Knife with stainless steel blade

A knife for cutting insulation with a long blade made of durable stainless steel is suitable for working with mineral wool of any thickness. To cut the insulation of different hardness, there are larger and smaller teeth on each side. Such a blade easily enters the thickness of the plate, allowing you to make even curly cuts thanks to the sharp tip.

Knife with carbon steel blade

Knife for cutting mineral wool with a blade made of carbon steel It has high quality cutting and easy to sharpen. However, it requires more care than a stainless steel blade, as it is prone to rust. It must be wiped dry after each use and lubricated.

Example: MORA knife for cutting mineral wool

The Swedish company MORA produces tools for cutting mineral insulation. Knife with stainless steel blade is used for cutting stone wool and glass mineral wool. The blade is made of special cold-rolled stainless steel and has a serrated edge. Ergonomic and comfortable plastic handle suitable for use with gloves. Its characteristics:

• total length - 500 mm;
• blade length - 335 mm;
• blade thickness - 1 mm;
• weight - 0.238 kg.

Knife with carbon steel blade is used for cutting mineral insulation different types. It has a smooth, high-quality carbon steel blade with a length of 350 mm. The plastic handle provides a good grip when wearing work gloves.

How to cut mineral wool

Mineral wool is fibers in structure, and accordingly, when it is cut, small particles of these fibers enter the air. To prevent them from getting into the respiratory tract and on the skin, it is important to create safe working conditions:

• ensure good ventilation in the work area;
• use overalls and protective equipment - overalls, gloves, a mask or respirator, goggles;
• Wash thoroughly immediately after finishing work. cold water hands and then face.

To minimize the amount harmful dust in the air, cutting of mineral wool should be carried out with tools with a well-sharpened, sharp working edge. It is better to cut across the fibers.

To obtain strips of the same width, mineral insulation produced in rolls is recommended to be first cut directly in a roll, without unfolding, and mineral wool boards are cut one at a time.

To ensure even and accurate cuts, you must first mark the material or cut directly along the ruler.

What to do with scraps and mineral wool residues

If trimmings remain after working with mineral wool, you can use them for insulation, for example, a garage or a barn. Some choose such a budget option for insulation, so that you can sell the leftovers at a low price.

There is also the option of recycling waste for recycling purposes. In this case, the remains of mineral wool boards are crushed using special equipment.

Mineral wool cutting video

On the video - cutting mineral wool with a special tool.

uteplix.com

Overview of tools for cutting mineral wool

There are always a lot of questions about how and how to cut mineral wool. Especially for those who are going to build housing on their own (for example, frame, which involves assembling on their own). Indeed, in its structure it is a fibrous material, moreover, having a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics will not work here at all.

However, before you start cutting mineral wool, it is important to deliver it correctly to the construction site. Indeed, otherwise, the material brought to the state of marriage will not have to be cut, but simply replaced with a new one. And this is an additional cost.

How to properly transport insulation

Science is simple, but very important. So:

• plates and mats are transported in a horizontal position;
• the truck must be with a protective awning;
• transportation is carried out only in packaged form;
• during transportation, loading and unloading work it is important not to compress the insulation too much;
• unpack the mineral wool immediately before starting work on insulation.

What will we cut

This can be done with different devices, depending on the thickness of the mineral wool.

Thin materials(no more than 50 mm):

Thicker and denser materials:

• special knives about 300 mm long. Often they are offered by manufacturers of insulating materials. This tool has teeth. different sizes for cutting mineral wool of different thicknesses and densities;
• saws with undivided teeth;
• hacksaw for metal;
• cutting machines. Used when cutting elements complex shape. However, for independent construction own house, that is, for a single use, it is not advisable to purchase such expensive equipment - you will have to adapt to the capabilities of other tools.

How to cut

• at self construction when the workers do not have sufficient experience, it is advisable to consult with specialists before starting cutting, especially if pieces of complex shape are expected. This will help prevent unnecessary consumption of insulation;
• the cutting tool must be well sharpened so that the mineral wool does not tear into fibers and is less “dusty”;
• when cutting the insulation, it should be borne in mind that in order to ensure a tight overlap of the insulated space with mineral wool, it is necessary to leave allowances of about 2 cm;
• it is better to cut rolled mineral wool before unfolding it;
• mineral wool boards must be taken out of the package and cut one at a time;
• it is not recommended to cut mineral wool "for the future" - immediately for the entire scope of work. This increases the risk of accidental damage to its shape when additional shifting from place to place or folding pieces on top of each other.

It is important to create a safe working environment

This is really important. As in any business, observing simple safety precautions will help maintain health, carry out work in optimal timing and at a high quality level. What you need to pay attention to:

• it is better to cut the insulation in cool weather, since for work it is necessary to wear a protective suit made of dense material, which will prevent skin contact with mineral wool fibers and its irritation;
• to protect hands, put on special gloves - with silicone or rubber coating on the palms;
• special glasses will be needed to protect the eyes;
• respiratory organs will be protected by a respirator.

Such measures must be observed, since when cutting the insulation from under the knives, material particles rise into the air. Which can get into the eyes, respiratory tract, and also cause skin irritation.

In addition, it is important to remember:

• when working with this type of insulation, it is necessary to periodically arrange a break, during which the room should be ventilated;
• it is necessary to shift the cut pieces carefully, without throwing, in order to reduce the amount of fibrous suspension in the air;
• on the construction site at this time there should be no children, even in protective equipment.

As can be seen from the above, there is nothing super complicated in cutting mineral wool. Subject to the indicated rules, it will not be difficult to perform work efficiently and safely.

remontami.ru

How to properly cut mineral wool

Mineral wool is one of the best, simplest and most common materials for insulation and soundproofing walls and ceilings today, and is also known in several other applications. In addition, it is easy to mount, that is, you can independently carry out the insulation of the premises.

Many people do not know how to cut mineral wool correctly without disturbing its structure, in this article we will look at all the ways to properly cut mineral wool, as well as advise on the tools that are best suited for this.

What types of mineral wool are there?

Mineral wool is usually classified according to the principle of the material from which it is made. From this follows the conclusion that mineral wool made from different raw materials also differs in structure - fibers, and, accordingly, in the type of cutting. So there are the following types of mineral wool:

• Glass mineral wool. Consists of melted glass.
• Stone mineral wool. It is made most often from various melts of rocks.
• Slag mineral wool. The starting material is blast-furnace slag.

In fact, you should pay attention to the fact that sometimes mineral wool is harmful. This is due to the fact that it contains dust and phenol-formaldehyde resins. Therefore, it is necessary to treat this material selectively, although mineral wool cannot be classified as a human carcinogen.

How to cut mineral wool:

Mineral wool cutting can be carried out both independently at home and using various equipment. Equipment for cutting mineral wool boards can be different. The issue is scale. Mineral wool cutting machine is suitable for serious and large scale - for enterprises, manufacturers, etc. But a knife for cutting mineral wool will become an indispensable assistant in cutting insulating materials at home.

It is important that cutting mineral wool does not damage the fibers, so the equipment must be selected carefully. The cut must be even. At home, cutting mineral wool rolls (the so-called "50s") will be convenient with a cutting knife, but for large ones ("100s") a special hacksaw for heaters will be convenient. At the beginning, its price may seem unreasonably high, but it's worth it. It is important that the work is done properly. Circular cutting of mineral wool can be convenient. The machine for cutting mineral wool can easily cope with such a task.

How to cut mineral wool:

If you do not know how to cut mineral wool at home, we can advise you on excellent tools that are best suited for cutting mineral wool.

So, for cutting mineral wool, a good, sharp clerical knife or a hacksaw is best suited, carefully cut the mineral wool in the right directions, for greater accuracy, you can draw lines with a pencil or cut directly along the ruler. The process of cutting mineral wool is somewhat similar to cutting foam, only you need to make a little more effort, pressing a little harder on the tool for cutting mineral wool.

What to do with scraps and remnants of mineral wool.

One of the solutions may pleasantly please many (especially firms and large manufacturers). Mineral wool scraps are not useless and can be useful to those who decide to insulate their walls and ceiling in a budget option. Scraps can be sold at a low price, and the demand for the product will be very high.

It is also possible to recycle scraps of mineral wool boards. In this case, with the help of special equipment, the remains of mineral wool boards are crushed to granules with the possibility of further recycling.

bazaltovaya-vata.ru

How to work with mineral wool

To protect against small particles, it is better to work with mineral wool with gloves and a respirator

In this article, we will not touch on the advantages and disadvantages of the popular insulation, which is called mineral wool. Many articles have been written on this subject on the Internet, but not everyone writes how to work with mineral wool, and if they do, then in passing. About the harm that this causes to human health construction material even many scientific works have been written, so the question: how to work with mineral wool, while maintaining your health, is far from being idle. And to understand it, you first need to know the composition of this material. And here it is useful to recall that mineral wool has three types: glass wool, slag wool and stone wool.

In the manufacture of glass wool, the same material is used as for the production of glass, as well as waste from the glass industry. If we take into account that limestone, sand, borax, soda and dolomite are used as raw materials for the production of glass wool, then the content of cullet in the structure of the material reaches up to 80%. When working with glass wool, the fragility of the fibers is formed in the form of small sharp and small particles that enter the human body, respiratory organs and eyes. Therefore, when working with glass wool, it is imperative to use protective equipment such as a respirator, goggles, tight gloves, clothing that covers all parts of the body. If, for any reason, you were not careful to adhere to the following rules:

• If dust has fallen on an open area, the body does not need to be scratched. Because by doing so you will drive small particles further into the body.
• Be careful to shake off the glass wool. Moreover, if you are indoors, you need to do this over a dry bath, and if you are outdoors, shake it off in the direction of the wind.
• Take a cool shower, but in no case hot, without using a washcloth, soap and various sponges.
• After a shower, you can not dry yourself with a towel, wait until dry.
• If glass wool gets into your eyes, try rinsing them with cold water. If all else fails and there is pain in the eyes, consult a doctor. In case of critical eye condition, call immediately ambulance.
• The same applies to the respiratory tract. If you have a persistent cough, difficulty breathing or other problems after working with glass wool, see a doctor.
• It is best to throw away the clothes in which you worked. No matter how much you shake it out and wash it, particles of glass wool will remain in it anyway.

Knife for cutting mineral wool

Slag is produced from waste blast-furnace slag during iron smelting. If we compare slag wool with glass wool, then both in one and the other there are brittle fibers with the only difference being that in glass wool they have the nature of glass, and in slag wool the nature of slag. Which ultimately makes the latter no less harmful than the former.

The same applies to stone wool, or as it is also called basalt wool, because it is made by melting basalt when it is heated to 1500 º C. Here, the role of sharp and small fibers falls on frozen basalt filaments. Among other things, slag wool and stone wool contain phenol-formaldehyde resins, which are also very harmful to health. Therefore, all precautions inherent in working with glass wool apply to both stone and slag wool.

All types of mineral wool are used to insulate the facade of buildings, but in no case should this material be used to insulate walls and ceilings indoors.

From personal experience you can add the following:

a) it is most convenient to cut mineral wool with a sharp knife with a long blade; b) it is desirable to work with mineral wool together, because it is easier to observe the careful handling of it; c) cover the cotton wool fixed on the wall with a protective plastic wrap, and only then fastens the lining, MDF panels or something else.

remontzhilya.ru

How to cut basalt insulation and how to lay it on the surface?

Today, manufacturers offer a sufficient number of heaters. Each of these materials is used in certain conditions and has its price. However, the most popular are heaters that provide optimal heat retention and have a long service life. Second no less important point- the cost, which must be acceptable. These requirements are met by such material as mineral wool. Its use is not associated with the use of special tools, fixtures. The tasks of how to choose and fix the material, how to cut the basalt insulation, can be solved independently.

Scheme of system insulation roofing cake.

Operational features of basalt wool

Basalt and other rocks of its group are used for manufacturing. Thin fibers are taken, in the melt of which limestone (10-15%) or charge is added. Additives increase the resistance of the material to the effects of excessively high temperatures, aggressive environments. As a result, a heater appeared, which has sufficiently high performance characteristics:

Scheme of basalt insulation.

• thermal insulation and hydrophobization. The first parameter is from 0.042 to 0.048 W/mK. Approximately the same characteristics have other known insulation materials (for example, polystyrene foam, polyurethane foam). Mineral wool is not able to accumulate moisture (hygroscopicity - less than 1%), which makes its weight unchanged. Distinctive feature can be called vapor permeability, which guarantees insulation and at the same time intensive moisture exchange between external environment and building walls
• density, strength. The insulation has sufficient density (from 30 to 100 kg / m3), which guarantees high thermal insulation properties with optimum strength. The rigidity of the material is provided by the direction of the fibers; they are located in the horizontal and vertical direction;
• soundproofing. good performance noise protection is achieved due to the porous structure of the wool;
• resistance to aggressive environment. Cotton wool is "indifferent" to alkali, acids; does not rot, is not affected by fungus. Rodents also bypass this insulation;
• fire resistance. Basalt wool is able to withstand heating up to + 700 ° C. This protects the structure from complete destruction in a fire and gives time for the evacuation of residents;
• health safety. Resins containing harmful substances(formaldehyde, phenol). However, compliance with the technology involves their introduction into the composition of the insulation in a chemically bound state. Substances become completely neutral with respect to environment and pose no danger to humans.

However, if mineral wool is produced by an artisanal method, then there is a danger to health. Therefore, it is more expedient to purchase material from trusted manufacturers.

There are always a lot of questions about how and how to cut mineral wool. Especially for those who are going to build housing on their own (for example, frame, which involves assembling on their own). Indeed, in its structure it is a fibrous material, moreover, having a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics will not work here at all.

However, before you start cutting mineral wool, it is important to deliver it correctly to the construction site. Indeed, otherwise, the material brought to the state of marriage will not have to be cut, but simply replaced with a new one. And this is an additional cost.

Science is simple, but very important. So:

• plates and mats are transported in a horizontal position;
• the truck must be with a protective awning;
• transportation is carried out only in packaged form;
• during transportation, loading and unloading, it is important not to compress the insulation too much;
• unpack the mineral wool immediately before starting work on insulation.

What will we cut

This can be done with different devices, depending on the thickness of the mineral wool.

Thin materials (max. 50 mm):

Thicker and denser materials:

• special knives about 300 mm long. Often they are offered by manufacturers of insulating materials. Such a tool has teeth of different sizes for cutting mineral wool of different thicknesses and densities;
• saws with undivided teeth;
• hacksaw for metal;
• cutting machines. They are used when cutting elements of complex shape. However, for independent construction of your own house, that is, for a single use, it is not advisable to purchase such expensive equipment - you will have to adapt to the capabilities of other tools.

How to cut

• in case of independent construction, when the workers do not have sufficient experience, it is advisable to consult with specialists before starting cutting, especially if pieces of complex shape are expected. This will help prevent unnecessary consumption of insulation;
• the cutting tool must be well sharpened so that the mineral wool does not tear into fibers and is less “dusty”;
• when cutting the insulation, it should be borne in mind that in order to ensure a tight overlap of the insulated space with mineral wool, it is necessary to leave allowances of about 2 cm;
• it is better to cut rolled mineral wool before unfolding it;
• mineral wool boards must be taken out of the package and cut one at a time;
• it is not recommended to cut mineral wool "for the future" - immediately for the entire scope of work. This increases the risk of accidental damage to its shape when additional shifting from place to place or folding pieces on top of each other.

It is important to create a safe working environment

This is really important. As in any business, observing simple safety precautions will help maintain health, carry out work in optimal time and at a high quality level. What you need to pay attention to:

• it is better to cut the insulation in cool weather, since for work it is necessary to wear a protective suit made of dense material, which will prevent skin contact with mineral wool fibers and its irritation;
• to protect hands, put on special gloves - with silicone or rubber coating on the palms;
• special glasses will be needed to protect the eyes;
• respiratory organs will be protected by a respirator.

Such measures must be observed, since when cutting the insulation from under the knives, material particles rise into the air. Which can get into the eyes, respiratory tract, and also cause skin irritation.

In addition, it is important to remember:

• when working with this type of insulation, it is necessary to periodically arrange a break, during which the room should be ventilated;
• it is necessary to shift the cut pieces carefully, without throwing, in order to reduce the amount of fibrous suspension in the air;
• there should be no children on the construction site at this time, even in protective equipment.

As can be seen from the above, there is nothing super complicated in cutting mineral wool. Subject to the indicated rules, it will not be difficult to perform work efficiently and safely.

During the installation process, slab and roll insulation very often has to be adjusted to the appropriate dimensions. The absence of minimal gaps between the elements of the supporting frame and the material eliminates the possible formation small plots with increased and undesirable heat transfer. It is worth noting that builders call these sections nothing more than cold bridges, and they know how to properly cut the insulation in order to avoid such problems.

Methods for cutting insulation

The most picky in this matter are polystyrene panels. Using a heated nichrome wire or fine-toothed hand saw you can easily and quickly cope with this task, while ensuring an even and clean cut. During the cutting of polystyrene foam, there will be practically no dust, and the work does not require special physical effort from workers;
more problems will be with mineral fiber heat insulators, which are based on basalt wool and fiberglass. Despite the fact that modern dust-free technologies are used today, cutting these materials causes the formation of glass dust, which often causes irritation of the mucous membrane of the human eyes, as well as the upper respiratory tract;

To reduce the amount of dust particles, experts recommend using only technically sound and proven tools that have well-sharpened working edges, special cutters and knives;
to reduce the amount of dust, the material must be cut along the fibers. In each option, the masters strongly recommend the use of individual protective equipment and all work should be carried out in well-ventilated areas. Mineral wool is minimally safe, but at the same time, all recommendations regarding the use of protective equipment must remain valid;

The developers of such materials are well aware of all their products and very often offer consumers proprietary methods for cutting and cutting rigid and flexible insulators. You can always get acquainted with the recommendations in the installation instructions attached to each package;
- the properties of insulation are completely dependent on the integrity of their structures. For example, all mineral wool materials based on stone wool are strictly forbidden to deform and compress. In this case, the insulation can always restore its shape and volume, however, the heat preservation of such a site is greatly reduced.
Finally, it is worth noting that if you are not confident in your abilities, then it is better for you to turn to qualified specialists - they know how to competently and correctly cut the insulation. In this case, you are guaranteed to receive high-quality work that will undoubtedly please you. And the material itself will serve you for many years.