How to cut mineral wool insulation in rolls.

Mineral wool cutting than and how to cut mineral wool in a roll and plates

A distinctive feature of mineral insulation is a structure consisting of fibers, which should be solid to ensure thermal insulation. In this regard, special attention should be paid to the cutting process. You can not use scissors for cardboard or fabric for cutting material, or ordinary dining rooms. These tools are not intended for such material, since they can spoil its appearance and worsen the beneficial properties. It is very useful for novice repairmen and builders to find out what tools are suitable for this case.

Characteristics and properties of the material

Before starting construction or repair work, the owner of the premises is conceived about what criteria you need to choose materials. Currently, the range of sales is replete with a variety of canvases that differ from each other in raw materials, price, scope of application, and operational characteristics.

The term “minvata” implies three types of materials, namely:

Glass wool (from fiberglass) is characterized by low density and high hygroscopicity. The material does not have the properties of moisture resistance, and heat resistance should not be expected from it: when a high heating temperature is reached (about 300 degrees), the fibers of the cotton wool are melted, and the material is no longer performed by the isolation function. Wolon is sold in rolls.

Glass wool is produced by a fiery way: an industrial centrifuge creates air flows that go directly to the raw materials. Due to the air flow, fibers from threads appear, and they can have different lengths, orientation and thickness.

Mineral wool has small thermal conductivity, passes steam due to cells in the structure and almost does not absorb water. In addition to the basis, there are few connecting elements, which allows it to withstand high temperature rates. The material is widely used as sound insulation and insulation for various foundations and surfaces. Produced by canvases that vary in terms of strength.

Slag wool for insulation of rooms

Slag wool is the cheapest option for insulation. The material consists of fibers that are waste operations of domain furnaces, it is not dense and does not differ in good indicators of heat resistance. If you overheat the slag cotton, it rises. Therefore, the material is not suitable for insulation of premises adjacent to thermal sources, and is also not recommended for the construction of houses.

The structure of the horizontal layer of any type of mineral wool is created in the direction of the fiber. The formation of vertical sites occurs due to elements that are randomly located. Each type of material has its own characteristics and external differences.

Are there any nuances in transportation and storage?

Manufacturers recommend storing mineral wool in a holistic package, and it is better if the pack is on a flat surface. Each pile of packages should not be higher than 2 meters. The optimal storage conditions are closed rooms resistant to moisture. It is not recommended to store insulation on the street, but if this happened, then you need to cover it with a tarp or film.

Store cotton wool only in a horizontal position

When transporting, it is worth observing the same rules: transport cotton horizontally and in a dry body of a truck. It is also necessary to provide material protection against mechanical influences and atmospheric precipitation. When loading and unloading the material, it cannot be strongly compressed.

Unpacking mineral insulation also requires certain nuances. The material should be removed from the package only before starting work, which will minimize various risks associated with damage to the insulation. By laying out the material for cutting, use its packaging as a litter. Thus, the product will not get dirty. Also, packaging can also be used to collect other garbage at a construction site.

The better to cut mineral wool?

Professionals use a special machine to separate paintings and rolls. But many are wondering: “The better to cut to mineral wool in the boards of the house to save money?””

Important! For cutting, minvates use a hacksaw for metal or wood.

In everyday life, to cut the canvas, a mounting knife is involved. This tool has one drawback, due to a small blade, it is difficult for them to cut thick plates. Therefore, I recommend applying a chancellery knife only for thin sheets. If this condition is not observed, then the canvases may become unusable.

Cutting mineral wool with a knife

Tools best suitable for cutting mineral insulation:

  • A knife whose blade is made of carbon steel. It is very easy to cut such a product, in addition, its blade is well and quickly sharpened. This knife needs careful care to avoid rust. The main rule of care is to wipe the blade after washing.
  • A knife whose blade is made of stainless steel. On each side there are teeth of different lengths, so it is very easy to do cutting of mineral insulation of different sizes and thicknesses. The blade quickly plunges into the stove and cuts it qualitatively. A sharp tip can make not indirect cuts.
  • Special machines. Such tools are able to draw canvases along a flat line and bending. Such a function is very appreciated in industry. If you need to cut cotton wool once, then it makes no sense to purchase expensive equipment. a tool that is in the house is suitable.

Cutting mineral wool with a special saw

note! Scissors for cutting wool cannot be used.

To cut a cotton wool, it is advisable to use a special hacksaw for insulation or metal. It is used to cut material, the thickness of which does not exceed 5 cm.

The blades of the tool that you use to cut cotton wool should always be well sharpened. In this case, fibers from cotton wool will be stretched minimally. Manufacturers advise cutting cotton wool before turning the roll.

Which mineral wool to choose for insulation

To insulate the house, at your disposal there are many options. You will be guided by various considerations when you begin to choose thermal insulation for the foundation, floor, walls or roofs: in each case, the material will have its own requirements. Here we will consider two varieties of universal traditional material. mineral wool. You will learn how these options differ from each other, and you can determine which of the two options is better for a specific design or zone of your house.

The requirements for thermal insulation are explicitly indicated or arise from the construction standards and rules. The main, but far from the only document-SNiP 23-02-2003 “Thermal protection of buildings”. Using SNiP, permissible materials, the thickness of the insulation layer, the requirements for how the material absorbs water and how much it is air and vapor permeate are determined. In general, the insulation for any zone of the house should be evaluated according to the following parameters:

  • Thermal conductivity: the lowest value of the parameter in nature is inert gas crypton. Modern insulation from innovative materials have thermal conductivity in the range of 0.032. 0.045 W/(MK). In any case, the value indicated on the packaging should not exceed 0.050 W/(MK).
  • Specific density: the parameter is important when you warm the roof or interior partitions. The higher the specific density, the greater the mass of the material and the more the supporting structure is loaded.
  • The operating temperature range: the perfect foundation insulation will withstand freezing in a harsh climate, and the thermal insulation of the roof, in addition, is also resistant to heating.
  • Resistance to external influences: chemically active compounds contained in groundwater, mold and fungi, which are started in places and materials where moisture accumulates. Ideally, if the insulation seems to be tasteless rodents and insects.
  • Low moisture absorption: in addition to the fact that unwanted organisms multiply in dampness, the thermal conductivity of the wet isolation drops. The walls of the house, the foundation, parts of the roof structure, the floors can get wet after the insulation and begin to gradually collapse.
  • Vapor permeability: water is constantly evaporated indoors. They wash underwear in the house, wash the floors, take a bath or shower. Evapion of warm air rise up. If the barrier on the way outside is impermeable, the steam settles in the form of condensate on the walls and supports, lingers inside the layer of insulation. Moisture stagnates, causes damage to structures. An unpleasant odor and spots of mold and fungus may appear. The higher the vapor permeability, the more reliable the insulation. The maximum indicator is 0.7 mg/mchpa. in mineral wool.
  • Durability: The life of a monolithic structure is 150 years. Ideally, the service life of insulation should coincide with the life expectancy of the house. But so far the market does not offer such materials, so it is better to choose thermal insulation that promises to live 50 years.
  • Environmental safety: all thermal insulation that you want to place in residential premises should not contain toxic ingredients and remain in the air after installation. The material should also not release toxins when it decomposes. getting wet, heated or burning.
  • Non.combustibility: all materials are divided according to GOST into fueling groups: from NG. substances that cannot burn, to G4. those materials that quickly burn, or are generally ignited by themselves. Give preference to NG and G1 groups. so you will take care of fire safety.
  • Convenience of installation: thermal insulation can be flexible both in rolls or in the plates that are equipped with the PAZ-Ship system, and can be extremely uncomfortable in work.

Based on these criteria, one of the best heater is mineral wool. It is divided into several varieties according to GOST 31913-2011 “Materials and products thermal insulation. Terms and definitions “: slag, glass and stone cotton wool.

If you are building and planning to insulate a private house, it makes sense to refuse the slag. It is made from the melt of domain slags. the remnants of the melting production. The result is a material with low thermal conductivity, which it retains only to a temperature of 300 0 ° C. If the material is heated to this mark, the fibers will completely break up. Such cotton wool absorbs water perfectly and that is why it is not suitable to insulate the foundation, facades or roof. And for insulation of internal structures, the slag is not suitable, because with the slightest contact with water, slag form acids that corrode metal and concrete of supporting elements. In addition, the material can radiate radiation.

Mineral wool can be carried out on the basis of fiberglass. Molten glass, and sometimes a mixture of glass battle and sand, is inflated with hot gas, as a result, fibers are formed up to 50 mm long, up to 15 microns thick. After that, the fibers are formed in blocks of the desired size and density, and again treated with hot air, so that using special resins, connect the fibers among themselves.

This insulation has a number of advantages, and twenty years ago you would consider it most likely the only option. Fiberglass has one of the lowest thermal conductivity among the variety of thermal insulation materials: 0.040 W (m/k). The specific density of this type of mineral wool is from 11 to

Vapor permeability-0.7 mg/MCPA, and this is also one of the best indicators for the sole-insulator materials. That is why the walls of wooden houses outside are traditionally insulated with fiberglars: steam that goes through wooden walls does not linger in the insulation. Rodents, insects and bacteria will not be able to find a gram of food in this cotton wool. It is convenient to transport, cut and mount it. The cost of the material is below the cost of basalt wool and other innovative insulations.

Cotton wool based on glass table fiber itself. non.combustible substance. However, when heated to 300-400 0 ° C, toxic products of resin products that bind the fibers to be released into the air. The maximum temperature at which fiberglass still retains its properties60 0 ° C. When you work with this material, just in case, it is worth protecting the skin and respiratory organs. In the Soviet era, glass wool was a very dangerous material. if you breathe fragments, you could earn an attack of allergies or even asthma.

How to transport insulation correctly

In the process of transportation, all parts of the product should be preserved in integrity, so it is important to observe the following rules:

  • The layers are pre.layered horizontally so that the mass is evenly distributed over the space, this will prevent deformation;
  • A protective awning is put on the cargo part of the car, it prevents sunlight, precipitation, and winds;
  • Materials are located in moisture.proof packaging;
  • Each component should lie on each other, but not tightly, you cannot squeeze the contents.

Recommendations on how to work with insulation

Before starting work, they study the instruction manual. It is required to cut and lay the layers correctly to improve thermal insulation, maintain safety for the user.

When working with insulation components, the following recommendations are used:

  • Prior to use, the product is stored in a dry place without direct sunlight;
  • packaging is removed only before the work;
  • Professional tools are used for cutting, in their absence, you can use sharp, not blunt objects, for example, knives;
  • If the product has a fibrous structure, it is additionally put on protective gloves so as not to cause allergic reactions, irritation and other dermatological problems;
  • They pre.measurements do not make a mistake with the cut, otherwise it will be impossible to return the pristine type of product;
  • If a part of the material remains after the work, it is placed back in the package, especially if mineral wool is used, since its fibers may fall out.

The listed rules will help make work better and easier.

Neat execution

It is important to create safe conditions

If you adhere to safety rules, you can save the health of the employee and the people around.

  • It is forbidden to have cutting tools in free form, especially with direct access for children;
  • If the mineral wool is used, a protective suit, gloves, glasses, a respiratory mask are pre.prepared;
  • To use other products, only gloves may be required, inside which rubber spraying is applied, and fingertips are covered with silicone;
  • Cutting tools should be sharpened if dumb devices are used, the cut will be uneven, when pressed, the user can damage the limbs;
  • It is recommended to cut the surface in the open air, the balcony and in other non.residential premises;
  • Small surpluses are immediately thrown away so that their fibers do not spread through the air, floor;
  • the cut is made carefully so as not to accidentally cut the fingers or other parts of the body.

If you do not observe safety precautions, you can not only cut, but also harm the body. For example, the penetration of mineral wool into the respiratory tract can cause athletes, bronchial asthma, halflenosis and other deviations.

Safe slicing

Cutting tools

To understand how to cut the insulation of mineral wool, foam, other products, preliminarily reveals their structure and thickness. It is best to adhere to the advice of manufacturers, as they take into account these components.

In the presence of thin materials with a thickness of not more than 5 cm, you can use recommendations than cut the basalt insulation:

  • a kitchen knife that has cloves at the edges (usually it is intended for loaf);
  • construction knife for installation work;
  • A knife for the office.

The listed items are suitable in cases where the user is trying to find out how to cut mineral wool in a stove 50 mm. They successfully cut the structure, do not cause laying, completely penetrate the thickness of 5-10 cm.

Preliminary measurements play an important role

If the thickness of the product exceeds 50 mm, more serious cutting tools are required.

  • Knives for cutting insulation with a thickness of more than 30 mm. Most often they can be found in construction stores, sellers recommend that they be purchased together with the purchased material for insulation. This is a good option, since the manufacturers have already made a check for the quality and the ability to cut such a thickness.
  • Saw. Before buying, they carefully inspect it, as only a tool with undamosed teeth is suitable.
  • Cutting machines. They are required for professional masters. The machines are designed to cut complex shapes, for example, circles, ovals, various figures.

It is easier to cut sheets of foam or extruded polystyrene foam. For this enough kitchen or stationery knife. The situation is more difficult for users who have purchased rolled heaters (mineral wool).

Rules for use

Before starting work, it is necessary to familiarize yourself with the guide to use the knife and ensure the safety of installation in order to prevent both gross and small errors, and harm to your health. There are several fundamental rules.

The insulation should be cut at low ambient temperatures. to safely start cutting mineral wool, you will have to dress in a special durable suit that will not allow the skin contact with toxic material and its irritation.

To protect your hands from getting cuts and abrasions with careless cutting, it is necessary to cover them with gloves with rubber or silicone coating.

The respiratory system must be closed with a strong respirator, and the eyes are protected with special professional glasses, since glass particles of foam or mineral wool can fall into the respiratory tract or into the mucous membrane of the eyes.

During the installation work, it is necessary to arrange small breaks and open the windows to ventilate the room. If possible, it is better to immediately work indoors with good ventilation.

So that the thermal insulation material does not break off, and particles fly less from it, the cutting tool must be technically working and well sharpened. To reduce the amount of dust in the air, the insulation should be cut along the location of the fibers.

In the process of cutting, you need to count on the remainder of a small layer about 2 cm long in order to ensure a dense overlap of the insulated space.

Minvata is better to cutting before expanding.

Mineral wool panels should be removed from the packaging box and cut one at a time, so as not to accidentally damage its shape when transferring the material from one to another place and when they are located on each other.

Already cut pieces of insulation can not simply be thrown onto the floor or on another piece, since a huge number of polystyrene fibers will immediately begin to rise into the air. The material should be shifted with special accuracy.

In addition, with independent installation work, the best option would be to consult with specialists, since, perhaps, it will have to cut pieces of complex shape. Professional recommendations will help to avoid unjustified material consumption. Manufacturers also advise you to start cutting cotton wool before expanding the roll, and to ensure even and accurate cuts, it is necessary to mark the material in advance by the ruler.

The remains of thermal insulation material do not have to throw away. They will remain suitable for insulation of pantries, garage, barn or other utility rooms. In addition, they can be processed and sold at a low price for subsequent use.

At the end of the work, it is recommended to thoroughly rinse the face and hands with soap under cool water.

Insulation

Technonikol. a manufacturer of insulation, mineral wool of the Rochelite, Technoblock, Technical, Technoleite, Technoruf, Technopas. for roof insulation, attic, facade, walls and foundation.

A wide range of products, optimal prices, availability in warehouse, convenient purchase conditions, delivery of Technonikol insulation in the region and other regions, discounts to regular customers.

Mineral wool technology is a fibrous material that is obtained from rocks of rocks, as well as metallurgical slags and their mixtures. Most often, global manufacturers of mineral wards use rocks as raw materials. Thanks to this, the mineral wool is of high quality, it can be operated for a long time. Когда необходима долговечная и надежная работа зданий и строений, применяют именно ее.

Mineral wool, which is obtained from domain slag, is not enough durable in conditions of temperature changes, the action of loads and deformations, increased humidity. Therefore, it is successfully used in summer cottage construction, as well as in the construction of temporary structures.

Mineral wool has unique properties:

Fire resistance. Minvata is achieved through the use of non.combustible silicate melts of rocks in the production of non.combustible. Even at high temperatures, there is no deformation of mineral wool plates, all properties are preserved. The material resists the spread of combustion in a fire, which is why mineral wool is used for insulation of rooms where various fire hazardous substances are stored. It is used even in conditions of prolonged contact with high temperature, however, without further mechanical exposure. This property is obtained due to the difference in the melting temperature of the stone fibers and used in the binder.

Cutting tools

In the production process, to cut the material into fragments of the desired configuration, special stationary equipment is used.

At home, you can use the following tools:

  • Stationery knife. Simple and inexpensive device with interchangeable blades that are easy to change as it is abrasion. Thin steel is well included in the basalt and glass material, but almost powerless in front of slag slabs. The downside is that such a product can only be cut by mineral wool up to 50 mm thick.
  • Kryazuvka for metal. A great solution if you need to cut slag or stone wool with a thickness of up to 100 mm. On sale there are unilateral and bilateral canvases with small and large teeth. You can easily choose the most convenient option.
  • Special knives. Products have narrow blades up to 34 cm long with teeth without wiring. The handles are specially adapted for sawing at the optimal angle. In various models, the canvases are made of cold stainless or carbon steel.
  • Bukhankaya knife. The device is a good analogue of a special tool. For work, you need to choose knives with a gear, not a wavy edge. The length of the blade should be more than 15 cm.
  • Cutting machine. The equipment is quite expensive, but productive. Allows you to make accurate and even cuts. Buying a machine makes sense if there is a large amount of insulation work.

The choice of a device for cutting mineral wool is determined by its own priorities, building skills and financial capabilities.

Characteristics and properties of the material

Before starting construction or repair work, the owner of the premises is conceived about what criteria you need to choose materials. Currently, the range of sales is replete with a variety of canvases that differ from each other in raw materials, price, scope of application, and operational characteristics.

The term “minvata” implies three types of materials, namely:

Glass wool (from fiberglass) is characterized by low density and high hygroscopicity. The material does not have the properties of moisture resistance, and heat resistance should not be expected from it: when a high heating temperature is reached (about 300 degrees), the fibers of the cotton wool are melted, and the material is no longer performed by the isolation function. Wolon is sold in rolls.

Glass wool is produced by a fiery way: an industrial centrifuge creates air flows that go directly to the raw materials. Due to the air flow, fibers from threads appear, and they can have different lengths, orientation and thickness.

Operational features of basalt wool

Mineral wool has the following advantages:

  • A wide range of products. Minvata is produced in the form of plates, rolls or mats. Due to this, it is possible to choose an option that is best suited for thermal insulation of a certain section of the building. Also, the types of mineral wool differ in density: the material in the form of plates has a high density, and the roll insulation is more light;
  • has high thermal insulation characteristics. Mineral wool has a porous structure. This material consists of their small layers. Due to this, it holds heat well, and also provides excellent sound insulation;
  • Fire safety of the material. Minvata does not burn and does not spread fire. For this reason, it is often used in thermal insulation of inter.story floors. Mineral wool manufacturers claim that this material can withstand the temperature above 900 degrees Celsius;
  • Minvat is not deformed, and this is a very important advantage. This material does not shrink, therefore, the formation of “cold bridges” that cause heat loss does not occur;
  • Frost resistance. This property allows Minvat to use the thermal insulation of external elements of the construction;
  • Mineral wool is environmentally friendly material. It is used for thermal insulation of spa and medical institutions, as well as children’s rooms.

This insulation is produced in various forms. plates, cylinders, mats; you can purchase a wool covered with foil.

Mineral wool has features that cannot be called positive. These include:

  • low strength. This is due to the high porosity of mineral wool;
  • To ensure a high level of thermal insulation, this material should be used along with a waterproofing film and vapor barrier membrane;
  • When using mineral wool with fiberglass, it becomes unsafe, since formaldehydes are added to it;
  • high hygroscopicity (therefore, high waterproofing is done).

To attach such insulation on the inside of the rafters, the planks are nailed (they make a grille) to which cotton wool will be attached. On the outer side, cotton wool is laid in one layer (layers depend on the thickness of the cotton wool).

After laying the insulation, waterproofing is applied. Important in this stage is not to confuse the sides of the insulation. The upper layer does not let in moisture, and the bottom is an obstacle to steam.

Waterproofing is not pulled, between it and cotton space remains. There should be a airspace in front of the skate, which will create additional traction.

  • Thermal insulation and hydrophobilization. The first parameter is from 0.042 to 0.048 W/mk. Other well.known insulation materials (for example, polystyrene foam, polyurethane foam) have approximately the same characteristics). Minvat is not able to accumulate moisture (hygroscopicity. less than 1%), which makes its weight unchanged. A distinctive feature can be called vapor permeability, which guarantees insulation and at the same time intensive moisture exchange between the external environment and the walls of the building;
  • Density, strength. The insulation has a sufficient density (from 30 to 100 kg/cube. m), which guarantees high thermal insulation properties with optimal strength. The rigidity of the material is provided by the direction of the fibers; They are located in a horizontal and vertical direction;
  • soundproofing. Good characteristics of noise protection are achieved due to the porous structure of cotton wool;
  • resistance to aggressive environment. Cotton wool “indifferent” to alkali, acids; does not rot, is not affected by the fungus. Rodents also bypass this insulation;
  • fire resistance. Basalt wool can withstand heating up to 700 ° C. This protects the structure from complete destruction during fire and gives time to evacuate the residents;
  • Health safety. In production, resins containing harmful substances (formaldehyde, phenol) are used). However, compliance with the technology involves their introduction to the insulation in a chemically related state. Substances become completely neutral in relation to the environment and do not pose a danger to humans.

How to cut mineral wool properly

Stone cotton wool is often used to warm houses. because it is not afraid of fire, and is easily mounted, and is inexpensive.

And one of its popular types is basalt insulation, the technical characteristics and properties of which depend on where it is specifically used.

By the way, we note that this material is one of the cleanest in terms of ecology.

Since this insulation is one of the types of mineral wool, it has several names, including basalt or stone, cotton wool.

over, it not only exceeds in terms of strength characteristics all other types of mineral wool, but also absolutely safe for humans and nature.

Compared to mineral wool, made of toxins of metallurgical production, the basalt insulation is more environmentally friendly, it is easier and mounted, and lasts longer.

The molten gabbro-bazalthes, forming thin fibers, form the basis of basalt wool. By and large, this is fiberglass, but not from quartz, but from basalt. And he was invented (or rather, noticed) this material by Hawaiians.

Once, when one of the volcanoes once again broke the lava and cooled down, the locals found amazing fibers in the remnants of the lava, long and durable.

mineral, wool, insulation, rolls

Later, what was done by nature, people were able to repeat, inventing the production of basalt fibers.

For this, the rock must be crushed and melted. The temperature in the melting furnace is very high. 1,500 degrees, no less. Further, the melt enters special drums, where it rotates, blown up by the air stream.

Then the cotton wool is heated to 300 degrees, passing through the press 2 times.

The fibers in the basalt heater do not have strict orientation, but are located very chaotic, so the structure of the substance is an air. Countless air layers between thin stone fibers are an excellent heat insulator.

Therefore, the thermal conductivity coefficient of this material is very small. its value lies in the range from 0.032 to 0.048 watts per meter per Kelvin.

This corresponds to the level of cork, foamed rubber and polystyrene foam, both extruded and ordinary.

Let’s try to compare the technical characteristics of basalt thermal insulation and other materials. Take, for example, 10 cm. mat from basalt insulation, whose density is 100 kilograms per cubic meter.

In order for the effect of heat to be similar, you need to build a ceramic brick wall 117 centimeters thick. If the brick is made of clay, then the wall should be even thicker. 160 centimeters.

From silicate brick, you will have to lay out a two.meter wall, and a layer of wood should be at least 25.5 centimeters.

This material has the property of hydrophobis. Water, falling on it, cannot penetrate inside, so that thermal insulation properties do not change. But if you conduct a similar experience with ordinary mineral wool, it will bring you a fair amount of water.

Wet cotton wool will not hold heat. after all, water, falling into its pores, significantly increases the thermal conductivity of the material. So if you need to insulate a wet room, for example, a sauna, then take not ordinary glass wool, but basalt. you will not be mistaken.

Water absorption in volume is not more than 2%.

Water does not impregnate, but streams of basalt wool fibers, t. to. In the production process, it is impregnated with special oils.

Basalt fiber, regardless of its density, has excellent vapor permeability. Moisture contained in the air easily penetrates through a layer of insulation, without forming condensate inside it.

This is especially important for a bath or sauna. The basalt wool itself does not get wet, still reliably storing heat. Therefore, in the premises isolated by this material, it lives comfortably. temperature and humid modes are optimal.

The vapor permeability is about 0.3 mg/(m h PA)

In accordance with the requirements made by firefighters, cotton wool from basalt fibers is considered non.combustible substance. But that’s not all. she is able to block the path of open fire.

The maximum temperature that the basalt insulation can withstand without reaching the melting point is 1114 0C. This allows you to use it to isolate devices operating at high temperatures.

If we consider the indicators of this heat insulator for fire safety (determined by NPB 244-97), then stone cotton wool is reckoned with non-combustible materials (NG group).

We suggest you familiarize yourself: Pie walls of the frame house: multilayer device

Any buildings, structures, designs and structural elements can be isolated with this material.

As for the acoustic properties, they are good at basalt wool. in the sense of sound insulation, naturally. This insulation is able to muffle vertical sound waves going inside the walls.

Thanks to this, the room is well isolated from external noise.

Absorbing sound waves, stone wool reduces the reverb time, which protects from noise not only a room, the walls of which are isolated by this material, but also neighboring rooms.

The better to cut mineral wool?

It is recommended to cut heat.insulating materials from stone wool with a hacksaw for metal or specifically for this with an intended sharp long knife, the blade of which. In any case, the equipment should be well sharpened so that the fibers burst as little as possible. Many companies producing insulation also offer their customers a cutting tool: knives about 300 mm long, as well as saws with teeth without a divorce, about 60 cm long. For lack of special devices for such purposes, kitchen loaves with small teeth and a wavy edge show themselves well for such purposes. Thin soft slabs and mats (50 mm) can be cut with an ordinary mounting knife.

Minvata, produced in rolls, is best cut before unfolding. And mineral wool plates are taken out of packs and cut one at a time. It should be remembered that during the installation of thermal insulation, the insulation should fill all the isolated space very tightly, so the allowances should be left before cutting: for plates. 0.5 cm; and for mats-about 1-2 cm.

How to fix mineral wool correctly?

In this case, it all depends on the type of insulation and on the type of structure on which thermal insulation is mounted. Light brands of the mineral wool are installed in the frame structures of the display. Hard mineral wool slabs are fixed with special dowels or fixed using special adhesive compounds.

Warming technology of external walls

Wathered with cotton wool is carried out using glue and special dowels with a large hat. The material is delivered in the form of rolls, plates that are cut into pieces of the necessary size. You will also need a metal profile or wooden bars, between which the insulation will be fixed. You can cut the material with an ordinary sharpened knife. However, if the density is quite high (80-100 kg/cube. m), then you will have to cut with a hacksaw on wood. The facade insulation is carried out in the following order:

  • A vapor barrier film is attached to the wall; It should release moisture under the slabs of mineral wool and not let cold air inside the house;
  • Then wooden bars or metal profile are attached to the wall in an vertical position. Their width should correspond to the thickness of the insulation. The interval between the racks should be such that the mineral wool is inserted with slight effort;
  • The insulation is fastened by glue and special dowels, if the wall is stone, or by means of nails (screws) with large washers, if the surface is wooden. Per 1 sq. m is required 5-6 pieces;
  • It is recommended to lay a windproof membrane on the fixed basalt wool, the joints of which are glued with adhesive tape;
  • To ensure ventilation under the subsequent decorative coating, it is advisable to make a counter-scheme of wooden bars or a metal profile with a height of 10-15 mm above the plates.

This technology is suitable when the facade insulation is required for siding. However, in some cases, for example, in multi.storey buildings, it is necessary to tighten the insulation more rigidly. In this case, it is additionally fixed on the surface with glue, at the same time reinforcement is carried out. This operation strengthens the structure, extinguishes the thermal expansion of the material, which can contribute to the formation of cracks and an increase in thermal conductivity.

Reinforcement is carried out on an already installed insulation using special glue and mesh, resistant to alkali. First, glue is applied to which the net is laid, then it is covered with another layer of adhesive composition. The final decorative decoration can be made using facade paint, decorative plaster.

What will we cut

You can do this with different devices, depending on the thickness of the mineral wool.

  • Special knives about 300 mm long. Often they are offered by manufacturers of warming materials. Such a tool has teeth of different sizes for cutting mineral wool of different thickness and density;
  • saws with undamosed teeth;
  • Kryzuvka for metal;
  • Cutting machines. Used when cutting elements of complex shape. However, for independent construction of your own home, that is, for single use, it is impractical to purchase such expensive equipment. you will have to adapt to the possibilities of other tools.

How to cut

Cutting mineral wool, it is important to maintain the shape and density of the material, not get injuries and do not cost too costly purchases. Therefore, it is important to follow the following tips:

  • With independent construction, when workers do not have sufficient experience, it is advisable to consult with specialists before the start of cutting, especially if the presence of pieces of complex shape is assumed. This will help prevent unjustified insulation consumption;
  • The cutting tool should be well sharpened so that the mineral wool is not torn on the fibers and less “dust”;
  • When cutting the insulation, it should be borne in mind that in order to ensure a tight overlap of the mineral insulated space, it is necessary to leave the allowances of about 2 cm;
  • It is better to cut roll mineral wool until it is expanded;
  • Mineral boards must be removed from the package and cut one at one;
  • It is not recommended to cut the mineral wool “for the future”. immediately for the entire amount of work. This increases the risk of random damage to its shape when additional transfer from place to place or folding pieces on top of each other.

Rules and process of cutting mineral wool with your own hands

The fibrous structure of the insulation leads to penetration into the air during its sawing fine dust, which is capable of getting into the respiratory tract, eyes and skin, causing serious harm to health, due to which work should occur accordingly, with extreme caution and observance of safety measures. First of all, in order to avoid negative consequences, to cut the thermal insulation material is necessary using special clothing and personal protective equipment. They include overalls, headdress, respirator, rubberized gloves and glasses.

Further into the room in which the cut of mineral wool is to be performed, the influx of fresh air should be provided. Cut rolls or plates in a previously well.sharpened cutting element. If the tool has interchangeable blades, then the need for its preparation is excluded. Due to the presence of an acute cutting element in the process of cutting mineral wool, the number of dust formed and entering the air will be reduced to a minimum value.

Important! Regardless of the room or on the street, the insulation occurs, during its execution, the presence of unauthorized persons, as well as animals next to the specified place, should be excluded.

To obtain a high.quality final result, it is better to cut the thermal insulation across the fibers. Separation of mineral wool produced in rolons into strips of the same width is optimal before expanding when it is twisted. The folded material is required to be placed on a stiff flat surface. After that, by means of roulette, you need to determine the optimal length and draw tags in three places in a circle of packaging.

For reliability, the roll should be wrapped with a painting tape with the side opposite from the insulation in the area of ​​the upcoming cuts, which will also avoid when separating a piece of unwinding the remaining material. Removing the packaging must be completed at the end of the department during a circular cut in a folded mineral wool.

The material in the form of plates is required to saw one at a time, and not several pieces at once. It is possible to achieve an even and accurate cut during the preliminary execution of the marking or when applying when carrying out the cutting of a line or other such tools, for example, a construction level or rule that ensures the movement of cutting adaptation along the correct trajectory.

note! In order to avoid tearing under its severity of a cut piece of mineral wool at the end of the saw, it is necessary to hold it by weight.

The cut of mineral wool should occur with a slight excess, which will provide a tight installation of a strip or slab in the required area of ​​the frame. When using roll material, the allowance must be done at 5-10 mm. In the case of the slabs, it should be slightly increased and reach 2 cm. In addition, in order to avoid loss of form of form, which sometimes can occur, it should not be cut in advance, especially in large numbers. It is best to make a cut of insulation gradually in the course of installation work.

If the cut was carried out indoors, then at the end it is necessary to get rid of the resulting fine debris with a vacuum cleaner, and then perform wet cleaning. Mineral wool itself is required to fully protect by means of plaster, a vapor permeable or windproof film. Upon completion of work using thermal insulation, it is necessary to carefully shake out clothes, wash your hands and face, and it is better to take a shower under cool water, so that, if there are fibers on the skin or in the hair, their lag will happen noticeably easier.

Having found out how to cut mineral wool in plates and rolls with your own hands and how to do it better to decide on the most suitable tool for yourself, with which it will be possible to cope with the sawing of the required amount of insulation material in the process of insulation without any difficulties.

Insulation

Technonikol. a manufacturer of insulation, mineral wool of the Rochelite, Technoblock, Technical, Technoleite, Technoruf, Technopas. for roof insulation, attic, facade, walls and foundation.

A wide range of products, optimal prices, availability in warehouse, convenient purchase conditions, delivery of Technonikol insulation in the region and other regions, discounts to regular customers.

Mineral wool technology is a fibrous material that is obtained from rocks of rocks, as well as metallurgical slags and their mixtures. Most often, global manufacturers of mineral wards use rocks as raw materials. Thanks to this, the mineral wool is of high quality, it can be operated for a long time. Когда необходима долговечная и надежная работа зданий и строений, применяют именно ее.

Mineral wool, which is obtained from domain slag, is not enough durable in conditions of temperature changes, the action of loads and deformations, increased humidity. Therefore, it is successfully used in summer cottage construction, as well as in the construction of temporary structures.

Mineral wool has unique properties:

Fire resistance. Minvata is achieved through the use of non.combustible silicate melts of rocks in the production of non.combustible. Even at high temperatures, there is no deformation of mineral wool plates, all properties are preserved. The material resists the spread of combustion in a fire, which is why mineral wool is used for insulation of rooms where various fire hazardous substances are stored. It is used even in conditions of prolonged contact with high temperature, however, without further mechanical exposure. This property is obtained due to the difference in the melting temperature of the stone fibers and used in the binder.

Biological and chemical resistance to various aggressive substances, immunity to fungi and the effects of rodents. In this case, mineral wool is fully consistent with the current sanitary and hygienic standards and quality standards.

Insignificant degree of thermal, as well as natural shrinkage. The dimensions and form of materials from mineral wool do not change for the entire time of operation. This helps to exclude the passage of the cold in the butt places. This happens when the material is seated over time.

Negigroscopicity. The ability of the material to prevent moisture penetration is quite high. So the level of water absorption is about 0.5%, which is much lower than that of other materials. To reduce the risk of moisture penetration into the material to a minimum, it is produced and stored in dry rooms or impregnated with water.repellent substances.

Vapor permeability. This property is indispensable when creating a microclimate in the room and regulating humidity level. Due to the vapor permeability of the material, unhindered removal of water vapor and condensate is possible.

Stability of volume and shape in any conditions.

Low thermal conductivity. This material is characterized by high thermal resistance. So to ensure the same value as in 10 cm of mineral wool with a density of 100 kg/m.cube. It will take 25 cm of dry wood, 200 cm of silicate brick, 117 cm of hollow ceramic. This property helps to save money in repair. The thermal conductivity of mineral wool depends on the geometry of the fibers of the material. The direction of the fibers also affects the strength. An ideal choice is material with randomly directed fibers.

High sound insulation. Mineral wool is a strong barrier for sound waves.

High strength and corrosion stability. High.quality mineral wool is a chemically inactive environment and does not cause corrosion of metals in contact with it. The more vertical fibers in the material, the higher its strength. In the presence of a large number of fibers of this type, you can use a less dense coating.

Как разрезать рулон утеплителя. Режем минвату. How to cut a roll of insulation. Cut mineral wool.

Environmental friendliness. The material is absolutely safe and harmless to a person.

Easy installation. It is easy to cut any mineral wool to give the desired shape: soft. with a knife, and a denser. a hacksaw. It can be easily placed on any surface with different configuration, since it easily acquires any form.

Durability. The service life of mineral wool, provided that the proper operation is at least 70 years. Such durability is achieved through the use of rocks of basalt stone.

A huge number of positive properties of the material make it one of the most popular insulation in the building materials market. It is not easy to compete with such inexpensive material with a huge list of advantages.

Our experts are ready to help you with the selection of the insulation that is suitable for you.

You can buy thermal insulation for cash and non.cash calculation. We provide an individual approach to each client. In addition, we have a flexible system of discounts for regular and wholesale customers.

Remember: the right choice of insulation will solve many problems for many years, save your time and money, create comfort and comfort in your home. Do not save on professional consultation and installation: the spent funds will definitely justify themselves.

Mineral.water slab of Technonikol is a thermal insulation material that is made of mineral wool and synthetic binding. The Ministry of Plutus is resistant to high temperatures, and if it was produced from natural rocks, they will begin to melt only after two hours of temperature of a thousand degrees. In addition, a mineral wool is resistant to most chemical aggressive substances: alkalis, oils, solvents. Minvata plates (mineral wool) have different stiffness and density. Another advantage is a high vapor permeability coefficient, which makes it possible to freely penetrate the water pair. This helps to preserve the material from moisture formation, which can lead to the spread of mold and various pests.

The advantages of a mineral wool can also include the following:. low moisture absorption. no more than 1.5% complete non.combustibility Lightness and ease of operation. The material does not need special fasteners, it is easy to cut and lay The fibrous structure provides elasticity and high strength to the material lack of deformation even with large loads Due to the fibrous structure, such a plate is a good sound insulator. This quality is very useful in industrial construction, since noise insulation properties help reduce the thickness of the installed insulation Durability. The material performs its functions up to 25 years Environmental friendliness high thermal insulation properties.

Sawdust as a heater for home

Sprinking is woodworking waste in the form of fine chips and wood dust. This well-known material has been used for a very long time as a heater, since it holds heat perfectly, releases wood resins and is an excellent filler-fuss.

Application area

The beginning of the history of the use of sawdust in low.rise construction is rooted in those distant times when they began to be added to clay and build from this mixture of ceiling in village houses.

Such ceilings can be called ideal: they served for a very long time, did not damage anything, had no shortcomings and had very significant advantages. low cost and high thermal insulation.

Having taken as the basis this ancient technology, modern industry began to make the same high.quality building materials. granules, arbolite, concrete with sawdust, wooden blocks.

Sawdles also continue to use now in low.rise construction. Private developers who insulate the walls, floor, ceiling are especially interested in this material, and also use them with other goals as necessary.

Today it is impossible to find cheaper thermal insulation material than wood sawdust. For insulation of roofs, ceilings, inter.story floors, floors and wall structures, very different building materials are used. But it is a mixture of cement, gypsum or lime with chips and sawdust that is superior when warming any construction structure.

Why is the processing of sawdust

To create thermal insulation use sawdust pre.prepared in a special way. Without antiseptic processing and adding impurities from sawdust, two significant disadvantages appear:

Therefore, before starting work, the sawdust is mixed with lime, cement or gypsum, and then moistened with a solution of antiseptic. The resulting mixture becomes fireproof and unattractive for pests.

Without special processing of sawdust and careless handling of fire, your house can burn, especially if it is wooden. Therefore, before erecting a frame or a timber house-think!

Frightened? Changed their minds? But don’t refuse so right away! There is excellent material for insulation of wooden houses. ecovata. Of course, Ecowata has disadvantages that are described in this article, but they are relative. All disadvantages can easily be left to the competent use of this material.

DIY insulation with sawdust

Mainly sawdust are used to warm one.story house. If you decide to make a heater from sawdust with your own hands, then you need to prepare:

  • Sawdust
  • Cement
  • Lake
  • Shovel or mixer
  • Lime
  • Antiseptic for wood (boric acid, copper sulfate)
  • Mixing container

The thickness of the thermal insulation layer depends on the two factors:

If the construction will be used exclusively in the warm time, then a layer of insulation with a thickness of 25 cm for ceiling and 15 cm for walls is quite enough. If constant year.round accommodation in the room is planned, then the thickness of the layer should be increased to 30 cm. To do this, add racks to the main frame that will create an additional space for filling.

The competent performance of insulation with sawdust requires knowledge of the following points:

  • High risk of fire (switches, outlets, heating wiring) and the place of laying of electrical wiring and chimney pipes must be insulated with non.flammable material. The electric wire is most conveniently hidden in 3 mm metal pipes
  • Vapor barrier is not required, since cement in the mixture will absorb excess moisture, and the wood block will become much stronger
  • It should be borne in mind that fresh sawdust contains specific substances that prevent the clutch of cement with water, so the solution can be fragile. To prevent this problem, it is necessary to withstand sawdust for at least two months or moisten them with liquid glass before use

Sawdust with cement as a heater of a house

How to make a heater from sawdust with cement? To create a mixture, we need the following:

Working with Mineral Wool

All components are thoroughly mixed so that the sawdust envelops well and soaked with cement with lime. After that, an antiseptic is diluted in water, poured the solution into the garden watering can and irrigated the previously obtained mixture.

To check it, you need to take a little mixture in the hand and squeeze it. if the water did not appear, and the lump did not scatter, then everything is done correctly. the mixture is ready.

The next stage is the backfill of the mixture and its layer.layer tamping. For full maturation of blocks, it will take at least two weeks.

The premises where the work was carried out must constantly ventilate.

After a couple of weeks, the burdened places are carefully examined for the detection of voids that are formed during the drying process. If any, they are filled with the above way.

Warm plaster. clay with sawdust

Based on sawdust, you can prepare a solution for warm plaster. To do this, they are mixed with cement, clay, water and old newspapers.

Plaster from clay and sawdust is used as a heater through interior decoration of rooms.

You can also make plates from the finished solution, tamp them well and dry them. Such sheets are good heat.insulating material and are used at your discretion.

Sawdust for floor insulation

Pure sawdust without impurities today is not used today, since they easily ignite and quickly burn. Different insulations are made on their basis: ecovata, arbolite, pranks.