How to cut mineral wool in slabs is better • CIMFLOK.COM

Are there any nuances in transportation and storage?

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

You need to store cotton wool only in a horizontal position.

When transporting, you should follow the same rules: transport cotton wool horizontally and in a dry truck body. You also need to provide the material with protection from mechanical stress and from atmospheric precipitation. When loading and unloading material, it must not be strongly compressed.

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

Thermal conductivity. low

Fibers in basalt insulation do not have a strict orientation, but are located very chaotically, so the structure of the substance turns out to be airy. Countless layers of air between thin stone fibers. an excellent heat insulator.

Therefore, the coefficient of thermal conductivity of this material is very small. its value ranges 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 regular.

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

For the heat preservation effect to be similar, you need to build a ceramic brick wall with a thickness of 117 centimeters. If the brick is made of clay, then the wall should be even thicker. 160 centimeters.

A two-meter wall will have to be laid out of silicate bricks, and the layer of wood should be at least 25.5 centimeters.

Overview of tools for cutting mineral wool

Indeed, in its structure, this material is fibrous, moreover, having a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics will not work at all here.

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

How To Cut Insulation Easy with Simple Tools

How to cut basalt insulation?

Indeed, in its structure, this material is fibrous, moreover, having a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics will not work at all here.

Mineral wool is an artificial building material that is made for heat and sound insulation of residential buildings and industrial premises. The material is not afraid of fire, resistant to various weather conditions. For convenience, they are produced in rolls and mats. It is not enough to purchase insulation, it is also important to know how to work with it, this will be discussed below.

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 equipped with a protective awning;
transportation is carried out only in packaged form;
during transportation, loading and unloading operations, it is important not to squeeze the insulation too much;
unpack the mineral wool immediately before starting work on insulation.

Safety is ok

Stone wool is made from natural raw materials. basalt mineral. Its fibers are connected with formaldehyde resin. It gives the material the necessary strength characteristics, and also makes it more dense. Although they say that phenol is dangerous, but not in this case.

Indeed, it cannot stand out from basalt wool, since it is completely neutralized even during the production of the material. However, at the stage of manufacturing this mineral insulation, phenolic fumes are extremely small. much less than the permissible limit of 0.05 milligrams per m2 / hour.

Unlike glass wool fibers, basalt fibers do not irritate the skin, do not prick and do not cause allergies.

Today on the construction market there are a large number of grades of stone wool of various densities, the technical characteristics of which are somewhat different from each other.

But all types of basalt insulation are distinguished by their strength and long service life.

What are the remnants of mineral wool useful for?

The remnants of the insulation do not need to be thrown away: they will also be useful for the pantry or utility room. Many people strive for budgetary insulation, therefore they use scraps and leftovers of material.

Waste rock wool can be recycled for later use. In this case, special machines are used.

In order for the process of warming the room to go properly, you should know what to cut the mineral wool and how to do it. If you follow the simple rules for working with this insulation, then you can achieve a good result.

Insulation of the attic space is an effective way to reduce body losses as a result, the house needs to be heated less, which means that you can save on electricity.

Mineral wool insulation is a versatile high performance option for thermal and acoustic performance as well as fire resistance.

Insulation consists of fibers.

When working with material, a large number of harmful particles are emitted into the air. Fine dust is harmful to human breathing and skin. Therefore, when working with it, take precautions.

What rules need to be followed:

work in a well-ventilated area.
use personal protective equipment for work: mask, goggles, respirator.
work in overalls: well-buttoned overalls, headwear, construction gloves.
after work, hands and face are thoroughly washed under cold water. Overalls are shaken out of dust.

How to cut mineral wool?

The material has a fibrous structure, therefore, during cutting, small particles of glass wool fly in space. Therefore, the contact of hazardous elements on the skin and in the respiratory tract should be prevented.

Before cutting the insulation, the following conditions must be observed:

The room must be well ventilated.
In the process of work, it is mandatory to use protective equipment and special clothing. We are talking about gloves, respirator, mask, overalls and goggles.
When the material is cut, it is recommended to wash your face and hands under cold water.

To ensure that as few glass wool particles as possible form in the air, a well-sharpened tool should be used.

The insulation should be cut without unrolling the roll.

Advice! It is best to cut the material across.

To get strips of cotton wool of the same width, you should cut the material right in the roll. If the cotton wool is in the form of slabs, then you need to cut them one by one.

In order for the strips of cotton wool, cut independently at home, to turn out even and the same, they should be clearly divided according to the marks. Also, you can use a ruler as a cutting line.

When cutting, leave allowances at the edges. If it is a roll, then the indicator should be 0.5 cm, and if the plate is 2 cm.This cutting feature is needed so that the mineral wool element completely fills the required space.

Recall that the slabs of mineral wool are cut one at a time, and we cut the material in rolls without expanding.

Cutting mineral wool, how and how to cut mineral wool in rolls and slabs

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

Are there any nuances in transportation and storage?

You need to store cotton wool only in a horizontal position.

Material characteristics and properties

Before starting construction or repair work, the owner of the premises thinks about what criteria should be used to choose materials. Currently, the assortment of sale is replete with a variety of canvases that differ from each other in raw materials, price, scope, operating characteristics.

The term “mineral wool” means three types of materials, namely:

basalt (stone);
slag;
glass wool.

Glass wool (fiberglass) has a low density and high hygroscopicity. The material does not have moisture resistance properties, and one should not expect heat resistance from it: when a high heating temperature (about 300 degrees) is reached, the cotton fibers melt, and the material no longer performs the function of insulation. Glass wool on sale in rolls.

Glass wool is produced by blowing: an industrial centrifuge creates streams of air that go directly into the raw material. Due to the flow of air, fibers appear from the threads, moreover, they can have different lengths, directions and thicknesses.

Mineral wool has low thermal conductivity, allows steam to pass through due to the cells in the structure, and almost does not absorb water. In addition to the base, there are few binding elements in the composition, which allows it to withstand high temperatures. The material is widely used as sound insulation and insulation for various substrates and surfaces. Produced with canvases that vary in strength.

Slag wool for room insulation

Slag wool is the cheapest option for insulation. The material consists of fibers that are wastes from blast furnaces, it is not dense and does not have good heat resistance. If slag wool is overheated, it will sinter. Therefore, the material is not suitable for insulating premises adjacent to heat sources, and is also not recommended for the construction of houses.

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

The better to cut mineral wool?

Professionals use a special machine to separate canvases and rolls. But many ask the question: “What is the best way to cut mineral wool in slabs at home in order to save money?”

Important! To cut mineral wool, use a hacksaw for metal or wood.

In everyday life, an assembly knife is used to cut the canvas. This tool has one drawback, because of the small blade, it is difficult for them to cut thick slabs. Therefore, I recommend using a clerical knife only for thin sheets. If you do not comply with this condition, then the canvases may become unusable.

Cutting mineral wool with a knife

Best Tools for Cutting Mineral Insulation:

A knife with a blade made of carbon steel. It is very easy to cut with such a product, in addition, its blade sharpens well and quickly. This knife needs a lot of care to avoid rusting. The basic rule of care is to wipe the blade after washing.
A knife whose blade is made of stainless steel. There are teeth of different lengths on each side, so it is very easy to cut the mineral insulation of different sizes and thicknesses. The blade quickly plunges into the slab and cuts it efficiently. Sharp tip can even make indirect cuts.
Special machines. Such tools are able to cut canvases along a straight line and along a bend. This feature is very much appreciated in the industry. If you need to cut the cotton wool once, then there is no point in purchasing expensive equipment. the tool that is in the house will do.

Cutting mineral wool with a special saw

Note! Cotton wool scissors cannot be used.

For cutting cotton wool, it is advisable to use a special hacksaw for heaters or for metal. It is used to cut material that is less than 5 cm thick.

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

What are the remnants of mineral wool useful for?

Waste rock wool can be recycled for later use. In this case, special machines are used.

Material characteristics and properties

The term “mineral wool” means three types of materials, namely:

basalt (stone);
slag;
glass wool.

Glass wool (fiberglass) has a low density and high hygroscopicity. The material does not have moisture resistance properties, and one should not expect heat resistance from it: when a high heating temperature (about 300 degrees) is reached, the wool fibers melt, and the material no longer performs the function of insulation. Glass wool on sale in rolls.

Glass wool is produced by blowing: an industrial centrifuge creates air streams that go directly into the raw material. Due to the flow of air, fibers appear from the threads, moreover, they can have different lengths, directions and thicknesses.

Slag wool for room insulation

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

How to cut mineral wool?

Before cutting the insulation, the following conditions must be observed:

The room must be well ventilated.
In the process of work, it is mandatory to use protective equipment and special clothing. We are talking about gloves, respirator, mask, overalls and goggles.
When the material is cut, it is recommended to wash your face and hands under cold water.

To ensure that as few glass wool particles as possible form in the air, a well-sharpened tool should be used.

The insulation should be cut without unrolling the roll.

Advice! It is best to cut the material across.

To get strips of cotton wool of the same width, you should cut the material right in the roll. If the cotton wool is in the form of slabs, then you need to cut them one by one.

In order for the strips of cotton wool, cut independently at home, to turn out even and the same, they should be clearly divided according to the marks. Also, you can use a ruler as a cutting line.

Recall that the slabs of mineral wool are cut one at a time, and we cut the material in rolls without expanding.

The better to cut mineral wool?

Professionals use a special machine to separate canvases and rolls. But many ask the question: “What is the best way to cut mineral wool in slabs at home in order to save money?”

Important! To cut mineral wool, use a hacksaw for metal or wood.

In everyday life, an assembly knife is used to cut the canvas. This tool has one drawback, because of the small blade, it is difficult for them to cut thick plates. Therefore, I recommend using a clerical knife only for thin sheets. If you do not comply with this condition, then the canvases may become unusable.

Cutting mineral wool with a knife

Best Tools for Cutting Mineral Insulation:

A knife with a blade made of carbon steel. It is very easy to cut with such a product, in addition, its blade sharpens well and quickly. This knife needs a lot of care to avoid rusting. The basic rule of care is to wipe off the blade after washing.
A knife whose blade is made of stainless steel. There are teeth of different lengths on each side, so it is very easy to cut the mineral insulation of different sizes and thicknesses. The blade quickly plunges into the slab and cuts it efficiently. Sharp tip can even make indirect cuts.
Special machines. Such tools are able to cut canvases along a straight line and along a bend. This feature is very much appreciated in the industry. If you need to cut the cotton wool once, then there is no point in purchasing expensive equipment. the tool that is in the house will do.

Cutting mineral wool with a special saw

Note! Cotton wool scissors cannot be used.

For cutting cotton wool, it is advisable to use a special hacksaw for heaters or for metal. It is used to cut material that is less than 5 cm thick.

Are there any nuances in transportation and storage?

You need to store cotton wool only in a horizontal position.

Cutting mineral wool, how and how to cut mineral wool in rolls and slabs

What are the remnants of mineral wool useful for?

Waste rock wool can be recycled for later use. In this case, special machines are used.

Which cotton is better?

There is no unequivocal answer to this question, since in different conditions the material of different types will be the best option.

Basalt soft wool. It is used where high loads are not expected. This material can be used to insulate walls made using frame technology, as well as for thermal insulation of floors and roofs. The fact that cotton wool is soft does not mean at all that its performance is poor. They simply make it from thin fibers, which ensures the presence of many cavities in the insulation, in which air is retained, which prevents heat loss.

Mineral wool of medium hardness (density). It is used mainly for warming ventilated facades, where high-speed air flows are created in the air cavities. It is also used for fire-prevention measures, sound and heat insulation of ventilation channels. Medium density mineral wool can be installed without problems instead of soft basalt wool, but the cost of thermal insulation will be more expensive.

Rigid basalt wool. This insulation is used in places where high loads are possible on it. For example, where it is planned to insulate walls with reinforcement and plastering (wet method) or when creating certain types of floors.

Cylindrical pipe heaters. Usually they are produced with a diameter of more than 50 mm. They are slotted parts that can be expanded and slid onto the pipe, or two-part models that are connected on the pipe.

Foil basalt wool. This insulating material is characterized not only by low heat transfer, but also reflects heat, directing it inside the premises. Mineral wool can be covered with foil on one or both sides. When laying, the heat insulator is installed with the foil side to the heat source. The scope of this insulation is quite extensive, it is considered a universal material suitable for all methods and types of thermal insulation.

Sewing cotton wool. It is a very strong mats, one side of which is sheathed / reinforced with steel mesh (galvanized, stainless, fire-resistant, acid-resistant). The canvases can be of various thicknesses and can be used to perform various types of thermal insulation. Stitched cotton wool is usually non-combustible, therefore it can be used to insulate surfaces with elevated temperatures (up to plus 660-700 degrees).

An important technical characteristic of mineral wool is its specific density. Insulation, the density of which is up to 75 kg per cubic meter, is ideal for thermal insulation of planes where the impact of heavy loads is not expected, for example, for laying in ceilings in attics and roofs. Basalt wool of low density is often used for wrapping pipes of heating plants, boilers and similar nodes / communications.

Stone wool, the density of which is up to 125 kg per cubic meter, keeps its shape well and is great for insulating ceilings, walls inside buildings, and various vertical structures. It is used for thermal insulation of brick walls, as well as foam block or aerated concrete surfaces. Mineral wool of this specific density allows not only to insulate the building, but also to ensure its reliable sound insulation.

Basalt wool of high density. from 175 to 200 kg per cubic meter, is characterized, in addition, by increased rigidity, hence the abbreviation in its name (PPZh). Such insulation is used for thermal insulation of initially too cold planes. reinforced concrete, sheet metal. The PPZh-200 brand is also excellent for arranging additional protection of residential buildings from fire. Only high density mineral wool can be installed using the technology of facade insulation with a wet method.

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

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

Varieties of mineral wool

There are varieties of mineral wool: glass and basalt. The latter is made from rock. gabbro-basalt. During production, carbonates are added to it, which allows you to regulate its acidity.
Basalt wool

A factor such as acidity is of great importance for mineral wool. The more acidic the cotton wool, the less sensitive it is to water.

The type of cotton wool in which the acidity is higher is considered more durable. Synthetic, bituminous or composite clays are added to shape. Glass wool does not require special explanations, its name speaks for itself.

This is a mineral composition, for the manufacture of which, the same components are used as for glass (this can be broken glass).

The two types of cotton wool differ in their properties. Glass wool is usually 15 microns thicker (from 3 microns), but basalt wool is several times longer.

The conclusion suggests itself: glass wool is a more durable material that can withstand more aggressive environmental factors than basalt. Also glass wool does not burn.

Thermal insulation of the roof with mineral wool is difficult when working on roof slopes with a rafter structure. In such cases, it is better to use thick cotton wool. To prevent moisture from accumulating under the roof, you need to use cellulose wool.

The better to cut the Knauf insulation slabs. Cutting mineral wool, how and how to cut mineral wool in rolls and slabs

Characteristics and properties of mineral wool

You will need different tools to cut soft and dense insulation.

You need to cut the insulation with the tools that are best suited to its type and technical characteristics.

For thermal insulation work, the following types of mineral wool are used:

Stone. Consists of integrated dolomite rock fibers. Basalt is mainly used for manufacturing, which is characterized by high strength. The material is used as insulation and for the manufacture of acoustic panels. Cutting stone wool is easy as it is soft and pliable.
Slag. Manufactured from waste from the steel industry. It is used more in the decoration of utility rooms, as it contains impurities of toxic materials, has a pungent unpleasant odor. Cutting mineral wool in slabs is difficult, since it is fragile and unstable to pressure.
Glass. The raw materials for the production are cullet, lime and stone chips. Consists of many interwoven glass fibers that break easily. Supplied on sale in tightly rolled rolls. Cutting glass wool is easy as the material lends itself to any sharp tool.

The ease of installation and the quality of the final result depend on the quality of cutting the 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):

kitchen loaf knife with a serrated edge;
assembly construction knife;
stationery knife.

Denser and thicker materials:

special knives with a length of about 300 mm. Often they are offered by manufacturers of insulation materials. This tool has teeth of different sizes for cutting mineral wool of different thicknesses and densities;
saws with undivided teeth;
hacksaw for metal;
cutting machines. Used when cutting complex shapes. However, for self-construction of your own house, that is, for one-time use, it is impractical to purchase such expensive equipment. you will have to adapt to the capabilities of other tools.

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, an assembly knife is used to cut mineral wool. But it has one drawback. a short blade, which is not suitable for working with thick sheets of insulation. In addition, the blade dulls quickly and needs to be replaced.

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

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

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, which involves assembly on their own). Indeed, in its structure, this material is fibrous, moreover, having a certain thickness. Ordinary table knives or scissors designed for cutting cardboard or thick fabrics will not work at all here.

Science is simple, but very important. So:

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

Mineral wool cutting video

In the video. cutting the mineral wool with a special tool.

Today, a method has been developed for obtaining a special type of insulation. stone wool made from basalt. Twenty years ago, this mineral wool was used exclusively for the needs of the defense industry, and today this insulation is widely used for thermal insulation of any buildings.

The composition of mineral wool does not contain such environmentally harmful components as acrylic and phenol-formaldehyde resins. It consists only of natural binders, therefore it is safe for humans. This heat-insulating material not only perfectly retains heat, but also allows you to create reliable sound insulation of premises. Basalt mineral wool is becoming more and more popular and has already been tested by time, but people still have a lot of questions regarding technological issues, which we will try to focus on in this article.

Operational features of basalt wool

Mineral wool has the following advantages:

a wide range of products. Mineral wool is produced in the form of plates, rolls or mats. Due to this, it is possible to choose the option that is best suited for the thermal insulation of a certain section of the building. Also, the types of mineral wool differ in density: the material in the form of slabs has a high density, and the roll insulation is lighter;

has high thermal insulation characteristics. Mineral wool has a porous structure. This material is made up of small layers. Due to this, it retains 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 for thermal insulation of interfloor ceilings. Mineral wool manufacturers claim that this material can withstand temperatures above 900 degrees Celsius;

mineral wool does not deform, and this is a very important advantage. This material does not shrink, therefore, there is no formation of “cold bridges” that cause heat loss;

frost resistance. This property allows the use of mineral wool for thermal insulation of external elements of the building;

mineral wool is an environmentally friendly material. It is used for thermal insulation of health resorts and medical institutions, as well as children’s rooms.

Working with Mineral Wool

This insulation is produced in various forms. plates, cylinders, mats; you can buy cotton 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 together with a waterproofing film and a vapor barrier membrane;

when using mineral wool with fiberglass, it becomes unsafe, since formaldehyde is added to it;

high hygroscopicity (therefore high waterproofing is done).

To fasten such insulation, planks are nailed to the inner side of the rafters (they make a lattice), to which cotton wool will be attached. From the outside, the cotton wool is laid in one layer (the layers depend on the thickness of the cotton wool).

Cutting Roxul (Rockwool) for ceiling install – FASTEST!!

After laying the insulation, waterproofing is applied. The important thing in this step is not to confuse the sides of the insulation. The upper layer is moisture-tight, and the lower layer is an obstacle to steam.

The waterproofing is not stretched, there is an air space between it and the cotton wool. There should be some air space in front of the skate, which will create additional traction.

Basalt insulation scheme.

thermal insulation and hydrophobization. The first parameter ranges from 0.042 to 0.048 W / mK. Other well-known insulation materials (for example, expanded polystyrene, polyurethane foam) have approximately the same characteristics. Mineral wool is not able to accumulate moisture (hygroscopicity is 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 / m3), which guarantees high thermal insulation properties with optimal strength. The rigidity of the material is ensured by the direction of the fibers; they are located horizontally and vertically;
soundproofing. Good noise protection characteristics are achieved due to the porous structure of the cotton wool;
resistance to aggressive environment. Vata is “indifferent” to alkali, acids; does not rot, is not affected by the fungus. Rodents also bypass this insulation side;
fire resistance. Basalt wool is able to withstand heating up to 700 ° C. This protects the structure from complete destruction in the event of a fire and gives time for the evacuation of residents;
health safety. In the production, resins containing harmful substances (formaldehyde, phenol) are used. However, compliance with the technology involves their introduction into the composition of the insulation in a chemically bound state. Substances become completely neutral in relation to the environment and do not pose a danger to humans.

Material characteristics and characteristics

at the beginning of construction or repair work, the owner of the premises thinks about the parameters according to which materials must be selected. Now the choice of sale flashes by different canvases, differing one from one in raw materials, price, area of use, properties of operation.

The term “mineral wool” implies 3 types of materials, namely:

Fiberglass wool (fiberglass) is distinguished by its low density and high hygroscopicity. The material has no parameters of water resistance, and heat resistance should not be expected from it: when a high heating temperature (about 300 degrees) is reached, the wool fibers melt, and the material no longer performs the function of insulation. Fiberglass wool is sold in a roll.

Fiberglass wool is made by blowing: an industrial centrifuge produces air flows that go directly into the raw material. Due to the air flow, fibers from the threads appear, and, moreover, they can have very different lengths, tendencies and thicknesses.

Mineral wool has low heat conductivity, passes steam due to the cells in the structure and practically does not absorb water. In addition to the base, there are few binding components in the composition, which allows it to keep high temperature readings. The material is widely used as sound insulation and insulation material for various substrates and surfaces. It is carried out with canvases that differ in the degree of strength.

Slag wool for thermal insulation of premises

Slag wool is considered the most inexpensive option for thermal insulation. The material consists of fibers that are waste of blast furnaces, it is not dense and does not stand out for its good heat resistance. If slag wool is overheated, it will sinter. Due to this, the material cannot be suitable for thermal insulation of rooms adjacent to heat sources, and is not yet recommended for the construction of houses.

Any kind of horizontal layer structure min. cotton wool is created in the direction of the fiber. The formation of vertical sections is due to components that are randomly located. Each material has its own characteristics and external differences.

How to cut mineral wool?

The material is distinguished by a fibrous structure, due to this, during cutting, very small particles of glass wool fly in space. In this regard, it is necessary to eliminate the ingress of hazardous components on the skin and in the respiratory tract.

Before cutting the heat insulator, the following conditions must be observed:

The room must be well ventilated.
During work, the use of protective equipment and specialized clothing is considered indispensable. We are talking about gloves, respirator, mask, suit and goggles for protection.
When the material is cut, it is recommended to rinse your face and hands under cold water.

In order for as few glass wool particles as possible to appear in the air, it is necessary to use a high-quality sharpened tool.

Cut the heat insulator without unrolling the roll.

Advice! Much better to cut the material across.

In order to get strips of cotton wool equal in width, you should cut the material right in the roll. If the cotton wool is in the form of slabs, then you need to cut them one by one.

In order for strips of cotton wool, separated by their own forces in a domestic environment, to turn out ideal and similar, they should be clearly separated by marks. Also, you can use a ruler as a cutting line.

When cutting, we leave allowances along the edges. If this is a roll, then the indicator must be 0.5 cm, and if the plate is 2 cm.This specific cutting is necessary in order for the mineral wool component to completely fill the required space.

Note that the slabs min. cotton wool is cut one by one, and we cut the material in a roll without expanding.

The better to cut the mineral wool?

For dividing canvases and rolls, specialists use a specialized machine. But most people ask themselves: “What better way to cut rock wool in slabs at home to save money?”

Important! To cut mineral wool, use a hacksaw for metal or wood.

In everyday tasks and purposes, a knife for assembly work is used to cut the canvas. This tool has only one drawback, because of the small blade, it is difficult for them to cut thick slabs. Thanks to this, I recommend using a clerical knife exclusively for thin sheets. If this condition is not met, then the canvases may fail.

Cutting mineral wool with a knife

Tools that are much better suited for cutting mineral insulation material:

A knife with a blade made of carbon steel. With this product it is quite easy to cut, also, its blade sharpens perfectly and quickly. This knife needs careful maintenance to avoid rusting. An important rule of care is to wipe the blade after washing.
A knife whose blade is made of stainless steel. On either side, teeth of various lengths are taken into account, thanks to which it is quite easy to cut the mineral material for insulation of various sizes and thicknesses. The blade quickly plunges into the slab and cuts it efficiently. Sharp tip can even make indirect cuts.
Special machines. Such tools are able to cut canvases along a straight line and along a bend. A similar function is very much appreciated in the industry. If you need to cut cotton wool 1 time, then it makes no sense to buy expensive equipment. the tool that is in the house will do.

Cutting min. cotton wool with a specialized saw

It is worth paying attention! Cotton wool scissors cannot be used.

For cutting wool, it is best to use a specialized hacksaw for heat insulators or for metal. It is used to cut material, its thickness does not exceed 5 cm.

The blades of the tool that you use to cut the cotton wool must always be perfectly sharpened. In this embodiment, the fibers from the cotton wool will be stretched to a minimum. Manufacturers recommend cutting the cotton wool before unrolling the roll.

How to cut mineral wool in slabs, how to cut mineral wool

A characteristic feature of a mineral material for insulation is considered to be a structure consisting of fibers, which must be solid in order to equip thermal insulation. Therefore, great attention should be paid to the cutting process. Do not use cardboard or fabric scissors or ordinary table knives to cut the material. These tools are not intended for such a material, because they can spoil its appearance and impair good properties. It is very useful for novice repairmen and builders to find out what tools are suitable for this business.

Are there any subtleties in transportation and storage?

Manufacturers advise keeping the mineral wool in an intact package, and ideally if the pack will be located on a smooth surface. Each stack of packages should not be more than 2 meters. The ideal storage conditions are closed rooms that are resistant to moisture penetration. It is not recommended to keep the heat insulator outdoors, however, if this happens, then it is necessary to cover it with a tarpaulin or with a film.

It is necessary to preserve cotton wool only horizontally.

When transporting, it is worth following the same rules: transport cotton wool in a horizontal position and in a dry truck body. It is also necessary to provide the material with protection from the effects of mechanics and from hydrometeors. When loading and unloading material, it must not be strongly compressed.

Unpacking a mineral material for insulation also requires some nuances. The material should be removed from the packaging only at the beginning of work, which will make it possible to minimize the various risks that are associated with damage to the material for insulation. When laying out material for cutting, use its packaging as a bedding. Likewise, the product will not get dirty. Also, the packaging can be used to collect other waste at the construction site.

What are the remains of mines useful for? cotton wool

The remains of the insulation material do not need to be thrown away: they will also be useful for the pantry or utility room. Many people want budgetary insulation, thanks to this they use scraps and remnants of the material.

Waste min. cotton wool can be recycled for future use. In this version, specialized machines are used.

In order for the insulation process of the room to go through in a proper way, you need to know how to cut the mineral wool and how to do it. If you follow the usual rules for working with this heat insulator, you can achieve an excellent result.

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):

kitchen loaf knife with a serrated edge;
assembly construction knife;
stationery knife.

Denser and thicker materials:

special knives with a length of about 300 mm. Often they are offered by manufacturers of insulation materials. This tool has teeth of different sizes for cutting mineral wool of different thicknesses and densities;
saws with undivided teeth;
hacksaw for metal;
cutting machines. Used when cutting complex shapes. However, for self-construction of your own house, that is, for one-time use, it is impractical to purchase such expensive equipment. you will have to adapt to the capabilities of other tools.

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 equipped with a protective awning;
transportation is carried out only in packaged form;
during transportation, loading and unloading operations, it is important not to squeeze the insulation too much;
unpack the mineral wool immediately before starting work on insulation.

How to cut mineral wool in slabs?

How to cut?

When cutting mineral wool, it is important to preserve the shape and density of the material, not to get injured and to do not too expensive purchases. Therefore, it is important to follow these tips:

in case of 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 break into fibers and less dust;
when cutting the insulation, it should be borne in mind that 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 removed from the packaging and cut one by one;
it is not recommended to cut the mineral wool “for future use”. at once for the entire volume of work. This increases the risk of accidental damage to its shape during additional shifting from place to place or folding the pieces on top of each other.

It is important to create a safe working environment

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

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

Such measures must be observed, since when the insulation is cut from under the knives, material particles rise into the air. May come in contact with the eyes, respiratory tract, and 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 need to ventilate the room;
the cut pieces must be shifted 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 you can see 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.

Sources:

http://znatoktepla.ru/utepliteli/rezka-mineralnoj-vaty.html#i
http://znatoktepla.ru/utepliteli/rezka-mineralnoj-vaty.html#i-2
http://aniko-gas.ru/utepliteli/rezka-uteplitelya.html
http://offthevylc.ru/otoplenie/chem-rezat-minvatu-v-plitah-chem-rezat-mineralnuju.html
http://chudoogorod.ru/prochee-dacha/chem-rezat-minvatu-v-plitax.html