How to cut basalt wool. Roof insulation with mineral wool. Cutting tools

The manufacturer of mineral wool insulation TM "Beltep" makes sure that it is represented on the construction market thermal insulation materials With wide possibilities use. However, practice has shown that the possibilities of mineral wool insulation can become almost limitless if you follow the recommendations listed below when installing it.

How much mineral wool is in one package?

Products trademark"Beltep" is produced in the form of rolled mats or slabs packed in packs. The number of slabs in a pack directly depends on the thickness of the material. As a rule, one pack weighs 10-70 kilograms and occupies a volume of 0.3-0.4 m3. In order to determine as accurately as possible how many packs of mineral wool insulation are needed, you need to look through the Beltep product catalog, which presents tables with precise calculation for mats or slabs of all sizes and types.

How to cut mineral wool insulation?

It is recommended to cut stone wool insulation with a special long and sharp knife or a hacksaw for metal. When cutting the insulation, you must remember that in order for the heat-insulating material to tightly fill the entire insulated space during installation, you must leave an allowance: for mats - 1-2 cm, for slabs - 0.5 cm. Insulation in the form of rolls is best cut before , as it is deployed. But it is recommended to cut the slabs not in packs, but separately (that is, one at a time).

Does stone wool get wet or not?

In general, stone wool handles water quite well. If drops of water fall on its surface, they simply roll off it, like from the hood of a polished car. However, only on the condition that the water has somewhere to roll off. With prolonged contact with water (for example, if stone wool is in water for several hours in a row), this insulation will get wet, which will have a most negative impact on thermal insulation characteristics stone wool. Therefore, when carrying out work using mineral wool, it is recommended to carefully ensure that the material comes into contact with water as little as possible.

How to properly transport and store mineral wool insulation?

Mineral wool insulation must be transported in cars closed type. At the same time, they must be well secured and reliably protected from the effects of precipitation. Mineral wool mats are very convenient to transport, since they are packed in a compressed state, and, as a result, take up less space. During storage, mineral wool must be protected from moisture, so it is recommended to store it in closed, dry rooms. Stone wool in the form of slabs for storage is stacked in stacks no more than 2 meters high, and roll insulation installed in one row vertical position. During storage, it is advisable to avoid walking on hard slabs, and walking on soft mineral wool is strictly prohibited, as this can damage the integrity of the thermal insulation material.

Does basalt wool have high fire resistance ratings?

One of the main advantages of basalt wool is its highest fire resistance compared to other types of thermal insulation materials. Basalt wool fibers can withstand temperatures up to 1500 degrees. For comparison, metal begins to melt at a temperature of 1535 degrees.

What safety equipment should be used when working with mineral wool insulation?

Mineral wool is a material that produces dust during the cutting and installation process. Therefore, when working with it, it is recommended:

• wear protective clothing, gloves, safety glasses and a mask covering your nose and mouth;
• provide good ventilation workplace;
• After finishing work with mineral wool insulation, wash your hands thoroughly and remove dust from work clothes.

You can achieve the maximum thermal insulation effect when using mineral wool if:

• for thermal insulation flat roof lay mineral wool slabs in two layers;
• for heat and sound insulation wooden floor use granulated mineral wool;
• use two-layer insulation for thermal insulation of exploited attics;
• accurately trim mineral wool slabs to avoid the occurrence of “cold bridges”;
• used for insulation of enclosing structures frame type soft mineral wool;
• carefully study the information written on the packaging about the properties of materials and optimal conditions for its operation

Insulation of building structures can significantly reduce heat losses home and save energy for the heating system in winter period. There is a wide range of thermal insulators on the market synthetic materials and inorganic-based insulation materials, which include mineral wool boards made of fiberglass, slag, and rocks. At the same time, the bulk of the products in demand by developers are basalt slabs, due to its technical and operational characteristics and ease of installation.

Basalt wool insulation boards

Material composition

Basalt wool is made from fibers obtained by melting volcanic rocks. The fibers pass special treatment to increase strength and elasticity. Plates that are molded from fibers differ in density (rigidity), dimensions and other characteristics, which affects the area of ​​application of the material. Unlike slag wool, basalt tiles are environmentally friendly clean materials, in comparison with glass wool, basalt fiber is resistant to destruction and caking, and is less susceptible to moisture accumulation.

Manufacturing technology

Slab insulation based on basalt rocks is manufactured as follows:

1. The raw material, which is basalt, diabase, gabbro or other volcanic rocks, is heated to 1500 degrees.
2. Fibers with a diameter of up to 8 microns and a length of up to 10 mm are obtained from the melt.
3. Using an inorganic binder, for example, bentonite clay, the fibers are bonded to each other (filtration sedimentation technology).
4. Vacuum pressing of the material is performed to obtain slabs of the required density, during which the fibers are firmly bonded to each other.
5. The resulting basalt thermal insulation is subjected to thermal drying.

Scope of use

Insulation based on basalt fiber is designed for operation in the temperature range from -270 to +900 ° C, is resistant to sudden temperature changes and the effects of aggressive environments, and is a dielectric. Due to these qualities, as well as environmental friendliness, basalt wool is widely used for thermal insulation of building structures, industrial equipment, communications. In particular, this material applies:

1. For thermal insulation (together with sound insulation) of private and multi-storey buildings, ancillary buildings, commercial and industrial facilities, etc., in particular, allows you to:
   • insulation of floors, ceilings, ceilings;
   • thermal insulation roofing structure(internal - for pitched roofs, external - for flat roofs in use);
   • internal wall insulation;
   • facade insulation of the house (insulation of the facade with basalt slabs under plaster or use in a ventilated facade system).
2. For soundproofing rooms.
3. To create a heat-insulating layer inside multi-layer enclosing structures made of piece materials (brick, blocks various types), sandwich panels, walls of frame houses.
4. For thermal insulation of chimneys, pipelines, industrial equipment, etc.

Advantages and disadvantages

Basalt slabs account for about 70% of the market for thermal insulation materials for construction. This is due to the wide list of advantages that characterize the mineral basalt slab:

• high thermal insulation properties (10 cm thick slab fibrous material protects against freezing like a 140 cm thick wall made of silicate brick);
• the ability to dampen sounds - sound insulation made from this material will reduce the noise level by 20%;
• relative resistance to moisture accumulation;
• fire resistance (the material belongs to the non-flammable class, used for arranging chimneys);
• resistance to biological damage (the material is not affected by fungus, rodents, insects);
• resistance to deformation;
• non-toxic (allows you to insulate living spaces);
• strength and lack of shrinkage;
• vibration resistance;
• simple transportation, cutting and installation without the use of specialized equipment;
• wide range (slabs of varying hardness);
• light weight, due to which the insulation does not overload the structures and foundation;
• vapor permeability - the insulation does not interfere with gas exchange through building construction, which contributes favorable microclimate in the house;
• long service life (insulation can function for about 50-80 years without changing parameters).

Disadvantages include the tendency fibrous material accumulate moisture, condensing steam, which significantly reduces the thermal insulation properties and increases the risk of damage by rot wooden structures in contact with the insulation. To level out this disadvantage, it is necessary to follow the technology for installing the heat insulator - use special membranes (vapor-proof, windproof), provide gaps for ventilation so that moisture is removed from the slabs naturally, etc., depending on the conditions of use of the material.

Main settings

The technical characteristics of a heat insulator made of basalt fabric are in a number of parameters higher than those of other types of insulation. When choosing a material, you should consider:

• Slab sizes. There is no strict regulation; the width of the slab is usually 500-600 mm, the length is 1000-1200 mm, and the thickness ranges from 20 to 240 mm. According to GOST maximum thickness slabs - 150 mm, but manufacturers offer other options. The choice of sizes depends on the purpose of the material.
• The density of basalt wool ranges from 30 kg/m3 to 225 kg/m3.
• Compressive strength 5-80 kPa (subject to deformation of 10%).

Let's take a closer look at the main characteristics basalt insulation.

Thermal and sound insulation

High thermal insulation properties basalt insulation is provided due to the structure of the material. The fibers are arranged chaotically; when intertwined, they form numerous small air cavities, and air is a good thermal insulator. The thermal conductivity of the material ranges from 0.032 to 0.048 W/mK, and this distinguishes stone wool from other heat insulators, including glass wool and slag wool.

The fibrous structure also promotes absorption sound waves and vibrations. Thanks to this, the basalt mini-slab is used as soundproofing material, during insulation metal roofing protects the house from the noise of rain and wind, prevents the transmission of vibrations from roofing wall structures.

Vapor permeability and hydrophobicity

An important property of basalt fiber is hydrophobicity; the material repels water. The water absorption coefficient does not exceed 2% of the volume of the material and depends on the additives used by the manufacturer to hydrophobize the insulation.

The fibrous material freely passes steam (vapor permeability is 0.3 mg/(m.h.Pa)), and the fibers themselves do not absorb it. Therefore, if there is ventilation, the insulation does not retain excess moisture; it quickly evaporates.

But if the insulation is used indoors (for heat and sound insulation of floors, walls, ceilings, partitions), it must be reliably protected from moisture penetration with a vapor barrier. In rooms with high humidity(primarily in baths and saunas) a basalt heat insulator with a vapor-proof foil surface is used.

Fire safety

Heat-insulating slabs made of basalt, manufactured in accordance with GOST, are highly fire-resistant and belong to non-flammable materials. Its melting point is +1114 °C, and the fibers begin to melt after 2 hours of exposure to open fire at a temperature not lower than 1000 °C. Smoke formation is minimal, and basalt fiber does not emit toxic products.

Stone wool produced by unknown manufacturers may be manufactured in violation of state standards. In this case, the material may be flammable and toxic due to the use of organic binders.

Leading manufacturers

On Russian market Products from domestic and imported manufacturers are presented. To ensure that the characteristics of basalt slabs meet current quality and safety standards, it is recommended to choose reputable brands. Thanks to the wide price range and manufacturing options for basalt slabs, you can buy suitable insulation for specific tasks and a certain budget.

Popular manufacturers in Russia include:

1. ROCKWOOL is an international concern, whose representative on the domestic market is Mineral Wool CJSC with a network of enterprises in different regions countries. The company offers high-tech materials, including the development of dual-density boards consisting of durable and soft layers.
2. TechnoNIKOL is a Russian concern whose enterprises operate in several countries, including Italy, Lithuania, and the Czech Republic. The company's activities include the production of basalt insulation - the line includes over 25 varieties of material.
3. "ISOROC" is a Russian company specializing in the production of inorganic-based heat insulators. A wide range of products include materials such as ISOVENT. The manufacturer offers customers printed information materials that contain detailed instructions on the use of fiber insulation.
4. IZOVOL- domestic manufacturer, the range of which includes both basalt slab insulation and material for acoustic protection of premises, for the manufacture of sandwich panels.
5. ECOVER is a developing Russian company with wide choice heat and sound insulating materials made of basalt fiber. The price range allows you to choose suitable option thermal insulation.
6. Bogdanovichi Mineral Wool Slabs Plant LLC - the enterprise produces basalt slabs under the Izba brand. Modern Italian equipment is used to produce the material, quality control is carried out at all stages, and the products are certified. The manufacturer offers a wide selection of thermal insulating fiber boards.

Types of basalt heat insulators

Manufacturers offer a large number of types of basalt fiber boards, which are classified according to their technical parameters. This takes into account:

• density and rigidity of the material;
• fiber size;
• fiber arrangement (chaotic or structured);
• choice of binder;
• presence and type of additives that improve technical properties, protective coatings.

The use of basalt fiber insulation directly depends on its strength characteristics. Soft and lightweight slabs are designed for installation on unloaded structures for thermal insulation of communications. Using semi-rigid slab insulation thermally and soundproof the walls and pitched roofs, ceilings. Rigid and increased rigidity slabs are designed for increased loads; they are suitable for thermal insulation of facades, floors, external insulation flat roofs, including exploited ones.

The products on the market differ not only in their degree of hardness and size. Manufacturers produce thermal insulation materials with improved functionality. This could be treating the slabs with a water-repellent compound so that moisture rolls off the surface without penetrating inside, foiling with an adhesive or sewing method, etc.

Harmful properties

Demand thermal protection for arrangement energy saving house is growing steadily as energy costs are constantly increasing. In this regard, leading manufacturers are increasing production volumes, improving technologies, and developing new, increasingly functional heat insulators based on basalt fiber. This is reflected in the price - high-quality fiber thermal insulation from leading manufacturers is quite expensive.

At the same time, attempts to save money by purchasing cheap basalt slabs of unknown production can result in serious problems. Counterfeits of popular brands, products of semi-legal small enterprises are not certified. This means there is no guarantee that formaldehyde resins and other toxic substances that the manufacturing technology was not violated. Uncertified insulation may be flammable and release toxins when burned.

Statistics show that more than 50% of residential under-roof spaces in the Russian Federation are insulated with mineral wool. Does the popularity of the material indicate its undeniable advantages? This review examines do-it-yourself insulation of an attic from the inside with mineral wool and analyzes the method from a functional and technological point of view.

Plates, mats and rolled materials from basalt fibers, used to insulate the attic from the inside, attract developers and builders with three important properties:

Mineral wool is an effective and popular insulation material in Russia

• Fire safety. All brands of mineral wool belong to the NG category.
• Vapor permeability.
  

  Due to the ability to absorb condensate and evaporate it when the temperature rises, mineral wool works well in contact with wooden rafters. It protects them from waterlogging, which causes the development of fungus and wood rotting.

• Good noise-absorbing characteristics. Randomly oriented fibers most effectively reduce the level of high-frequency noise, which is especially intrusive and irritating in the rain.

The described characteristics, to a much greater extent than the cost, influence the choice of this type of insulation for attic insulation. However, various brands basalt thermal insulation differ significantly from each other in a number of other parameters. Insulating an attic from the inside of a room with your own hands requires some experience in working with mineral wool and imposes additional restrictions on the properties of the material: this becomes clear from the video posted in the “Algorithm” section self-installation».

Among these additional qualities are:

1. Material format. For laying between rafter beams, the width of the thermal insulation should be 600 - 610 mm.
2. Density. When working alone, the less the slab or section of it weighs, the better.
3. Elasticity and fairly high rigidity. This quality greatly simplifies the insulation of the attic with mineral wool.
4. Availability of large thicknesses - 100, 150, 200 mm.

A common misconception is that high density basalt insulation indicates its increased energy efficiency, and low - indicates low rigidity and inability to keep its shape. However, there is no direct relationship between thermal conductivity and stiffness and density. The length and thickness of the fibers, as well as the type of their orientation, are of decisive importance.

Mineral wool in the form of slabs is convenient for insulating the attic alone

We compared the actual parameters of the brands mineral wool, recommended by leading manufacturers for roof insulation. All four stated requirements are met by only three items: Rockmin and Rockmin plus (Rockwool brand), as well as Rocklight TechnoNIKOL slabs. Plates of these brands (formats 1000×600 mm and 1200×600 mm) with a thickness of 100 mm weigh respectively 1.6 kg; 2.1 kg and 2.9 kg. At the same time, they are elastic and hold their shape well.

There are many types mineral wool insulation, which exceed our recommended thermal resistance or stiffness. But they are all of the wrong format, or very heavy or not flexible enough, and therefore inconvenient for working alone.

Roofing pie composition

Insulation of a residential attic with mineral wool requires mandatory compensation weaknesses of this material: the ability to absorb moisture coming from the room, as well as high airflow and low resistance to precipitation. Therefore, the composition roofing pie provided that fibrous insulation is used, two and sometimes three membranes are introduced. In the direction from the room to the outside, the layers are arranged in the following order:

Scheme of attic insulation with mineral wool

1. Finishing ceiling cladding. The most warm material for this layer there is plasterboard and a layer of putty (taken into account separately in the thermal calculation).
2. Air gap formed by sheathing for fastening finishing cladding. Equal to the thickness of the slats (or galvanized profiles) of the sheathing. This gap is not necessary for the operation of the heat-insulating system.
3. Vapor barrier film. Protects the insulation from steam rising from the room.
4. Basic insulation (2 - 3 layers of mineral wool).
5. High diffusion membrane (waterproofing). Its peculiarity is the one-way passage of water. Moisture coming from below (evaporated by mineral wool) should freely penetrate through the membrane, and water coming from above (precipitation and condensation) should drain under roofing sheeting down to the street. Films of this type combine the functions of a water barrier and wind protection. In domestic practice, three-layer isospan membranes have proven themselves well. It is better to use Izospan AQ proff for the attic, which is characterized by high strength and good steam transmission (1000 g/m2 per day). There is no need for a gap between isospan and mineral wool.
6. Ventilation gap between the membrane and the roof deck. It is formed by sheathing strips located perpendicular to the rafters in plan. The thickness of the lathing is usually 4 - 6 cm.
7. Roofing flooring.

Sufficient insulation thickness

To determine the required thickness of mineral wool, you should choose one of the independent online thermal calculators (not owned by any insulation material manufacturer). In the filters, you must specify the region and all components of the roofing pie, indicating materials and thicknesses. Every air gap is also a significant insulating layer.

The thickness of the insulation for the attic must be accurately calculated

After this, the calculation will show the final indoor temperature. Using the method of successive approximations, you can find the value of all thermal insulation parameters that provide the required level of comfort in the attic.

In most regions of the European part of the Russian Federation, the required thickness of mineral wool at internal insulation attic is 280 - 300 mm.

Often, developers are content with values ​​of 200 - 250 mm, for the reason that “this corresponds to the geometry of the rafters” and “this has been tested in practice.” They simply ignore the fact that heat in the attic is compensated by heating systems located on the ground floor. The money saved on attic insulation results in significant annual energy waste.

Table: Comparative characteristics various insulation materials and the required thickness depending on thermal conductivity

Technology for self-installation of mineral wool

First, you need to make sure that the outer elements of the roofing pie (or at least the waterproofing layer) have already been installed. This is necessary to protect the mineral wool from atmospheric moisture before installing the outer membrane.

Place mineral wool tightly between floor beams or posts

Next, the width of the openings between the rafter beams is checked. If the size ranges between 550 mm and 600 mm, then you will not have to cut the insulation (you can use the factory width of the slabs 600 - 610 mm). If the distance between the rafters is more than 600 mm, it will be necessary to cut fragments of the required width from mineral wool slabs based on the installation compression of 20 - 30 mm. For example, if the rafter niche has a width of 720 mm, then sections of 700x600 mm are cut out of 1200x600 mm slabs. Residues of 500×600 are accumulated for use in insulating various contours (for attic walls, around window openings, for laying crossbars on top, etc.)

The second method involves cutting rectangular slabs diagonally and relative displacement of the halves along this diagonal. When shifted, the overall width increases, ensuring that the ends of the wool rest against the vertical edges of the rafters. However, in this case, for a tight connection, the following slabs will have to be cut curvilinearly from the outside.

Installation of mineral wool and further operations are carried out alone using the following techniques:

Fastening mineral wool with nylon thread

1. If there are no significant differences in width in the openings between the rafters, you can install mineral wool slabs without preparatory work. Pressing the material by 20 - 30 mm allows you to lay out all the insulation elements from the inside of the room into the roof slope. Otherwise, to support the wool, a temporary (removable) sheathing of planks, boards, or nylon thread (non-removable) is used, stretched along the lower edges of the rafters in a zigzag using a stapler. Layers of mineral wool are laid out in a checkerboard pattern to cover the joints.
2. Attached from below to the ends of the rafters with a stapler vapor barrier film. It must be joined with an overlap, gluing the joints with special tape.
3. The lathing is installed to install the final ceiling cladding.

Video: how to insulate an attic roof with mineral wool (Isover Pro 100 mm and Ursa Pure One 50 mm)

The total thickness of the insulation was 250 mm. The insulation is fixed using a 50×40mm beam. To eliminate sagging mineral wool, the author of the video additionally uses twine, which is stapled to the block.

Insulation of mauerlat and walls

The insulation of the attic walls should form a closed loop with the insulation of the roof slopes. Thermal calculations for walls are carried out separately. In most cases it shows required thickness insulation is 1.5 times less than for the roof.

Mauerlat is a log or beam that serves to transmit and average pressure from the rafter beams to the upper end of the wall. It is recommended to insulate the Mauerlat before installing the hydrobarrier. The Mauerlat is isolated from above and from the street side. Then the membrane is installed.

Video to help: why moisture forms on the roof of an attic insulated with mineral wool

Conclusion

In addition to the high functional properties of mineral wool used in residential under-roof spaces, consumers are attracted by the opportunity significant savings. The main source of this is not the price of the material, but self-execution works However, for installation carried out alone, to the fiber insulating material a number of additional requirements. Only taking them into account when choosing a brand of cotton wool guarantees you calm, measured work.

Basalt insulation is one of the subtypes of mineral wool, it is also called stone wool.

The advantage of this material is that it:

1. environmentally friendly (made from natural raw materials);
2. easy to use (cutting and installation);
3. service life about 50 years;
4. low thermal conductivity (due to the air gap);
5. almost does not absorb moisture (absorption no more than 5%);
6. allows steam to pass through;
7. does not support combustion;
8. high noise insulation;
9. does not irritate skin upon contact;
10. sound-absorbing material.

The disadvantages include:

1. high price of material;
2. during the cutting and installation process, dust falls from basalt wool (from which you can protect yourself with a respirator);
3. non-tightness of seams obtained during installation;
4. not suitable for insulation ground floor and basement.

There is a variety not only in the thickness of the material, but also in the scope of application:

• soft (for ventilated insulation);
• medium hardness;
• rigid (installed before plaster, screed);
• cylindrical (for pipeline insulation);
• foil (universal).

Basalt wool is used both for insulating facades, roofs, floors, and for soundproofing rooms.

Before installing basalt wool, it is necessary to take into account that temperature regime must be no lower than +20 and no higher than +25, the surface must be dry. When installing indoors, it is necessary to first clean all walls from dirt and dust, and pre-prime them.

If installation takes place outside the room, it is necessary to remove all protruding and sharp elements, remove the plaster (if any) and prime it. There are two types of external insulation: basalt wool glued directly to the wall with glue, then covered with reinforcing mesh and plaster applied on top.

The next method of insulation is called ventilated; this method is more complex and it is very important to do everything correctly. The point is that a small distance must be left between the wool and the wall covering to ventilate the insulation and so that condensation does not accumulate on it.

In the process of insulating the floor, there is no need to use glue or dowels; first lay out stone wool, and then lay the floor.

Production of basalt insulation

To make this type of wool, take basalt rock(only the real thing without the addition of substitutes and chemical substances), it is possible to add rocks similar in appearance, crush it and send it to melt in a furnace at 1500 degrees and above. When everything is completely melted, thin threads are pulled out of the resulting mass (by blowing, centrifugal-roll, centrifugal-blowing and other modified methods).

In order for all the threads to adhere tightly and reliably and keep the required shape, a binder made from formaldehyde resins is introduced into the resulting carpet of threads by spraying. Afterwards they are placed in a heat chamber for polymerization, at this moment a type of basalt wool is formed (in thickness and density), then sent for pressing and cutting into rolls, mats and squares.

There are always a lot of questions about what and how to cut mineral wool. Especially for those who are going to build housing on their own (for example, frame housing, which involves assembling it yourself). After all, in its structure it is a fibrous material, which also has a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics are completely unsuitable here.

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 defect, will not have to be cut, but simply replaced with a new one. And these are additional costs.

The science is simple, but very important. So:

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

What will we cut with?

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

Thin materials (no more than 50 mm):

Denser and thicker materials:

• special knives about 300 mm long. They are often offered by manufacturers of insulating materials. This tool has teeth different sizes for cutting mineral wool different thicknesses and density;
• saws with straight teeth;
• hacksaw for metal;
• cutting machines. Used when cutting elements complex shape. However, for self-construction own home, that is, for one-time 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 the presence of pieces of complex shape is 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 generates less dust;
• when cutting insulation, it should be taken into account that in order to ensure tight coverage 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 unrolling it;
• mineral wool slabs must be removed from the packaging and cut one at a time;
• It is not recommended to cut mineral wool “for future use” - for the entire volume of work at once. This increases the risk of accidental damage to its shape when additional shifting from place to place or stacking pieces on top of each other.

It is important to create a safe working environment

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

• It is better to cut 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 the fibers of the mineral wool and its irritation;
• To protect your hands, wear special gloves - with silicone or rubber coating on the palms;
• To protect your eyes you will need special glasses;
• The respiratory system will be protected by a respirator.

Such measures must be observed, since when cutting insulation, particles of material rise into the air from under the knives. 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, you need to periodically take a break, during which you ventilate the room;
• the cut pieces must be rearranged carefully, without throwing them, in order to reduce the amount of fibrous suspension in the air;
• on construction site There should be no children present at this time, even while wearing protective equipment.

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