Glass wool insulation. Glass wool overview


Glass wool insulation is a heat-insulating mineral wool material consisting of glass wool fibers. For its production, quartz sand, broken glass, dolomite and much more are used. The quality and safety of the insulation, as well as its manufacturing technology, directly depend on the type of raw material. Most famous brands glass wool producers are Knauf, Isover and Ursa.

Overview of properties and description of characteristics

Unlike mineral wool made from basalt ore, the fibers of glass wool thermal insulation are 2 or even 4 times longer, so it is more durable and elastic. Even at the lowest density, insulation in rolls, after pressing, restores its original shape. The minimum temperature for using fiberglass thermal insulation is -60°C, and the maximum is +450°C. When a flame hits it, glass wool decreases in size, but does not support the further spread of fire. In terms of thermal conductivity characteristics, insulation made from fiberglass and basalt are the same. Cotton wool is produced with a density from 11 to 130 kg/m3.

Positive qualities of fiberglass insulation:

  • long service life;
  • wide range of shapes, sizes and thicknesses;
  • non-flammable;
  • not interesting to insects, rats or mice as a food source;
  • vapor permeable;
  • resistant to acids, alkalis and other chemicals;
  • is not a habitat for colonies of mold or other fungi;
  • suppresses airborne noise well;
  • has a low thermal conductivity coefficient;
  • does not shrink throughout the entire service life;
  • simple and convenient installation both insulation in rolls and slabs.

Due to its property of allowing moisture to pass through, glass wool can be used to insulate buildings built from wooden building material. Since it will not interfere with the ventilation of the walls and the removal of excess moisture from them, as a result, the likelihood of condensation is eliminated. Also, metal structures will not be subject to corrosion. Fiberglass wool is lightweight, and as a result, it does not create significant loads on the insulated base.

The disadvantages include mandatory installation steam and windproof membranes. If the fiberglass wadding is placed outside, such as on walls, and is not covered windproof film, then gradually the thermal insulation fibers will be blown out. As a result, the thermal conductivity characteristics will begin to deteriorate. Like any other mineral wool, glass wool retains heat well in a building due to the presence of air voids between its glass fibers. Therefore, when installing rolls and slabs, they should not be pressed down or pressed. The cotton wool should be in a free position so that it can expand as much as possible, but at the same time sit well and tightly in the frame, without gaps.

If you do not work properly with fiberglass insulation, the dust released from it can be harmful to human or animal health. Dust is small debris of cotton wool fibers that is created when rolls and slabs are transported, unpacked and installed. When working with it, be sure to use such tools personal protection, such as a respirator, goggles and protective clothing. All areas of exposed skin should be covered. If it comes into contact with the mucous membrane of the eyes, skin or respiratory tract, prickly dust causes irritation.

Glass wool produced using the simplest technology from low-quality raw materials is more harmful. Distinguish it from quality material possible at a price - the cheaper, the worse the thermal insulation. You can look at reviews from professional builders who already know from experience which insulation is best worth buying and which one really won’t cause harm.

Scope and installation rules

Fiberglass thermal insulation is used to insulate the following places:

  • walls, ceilings, floors;
  • balconies, attics, attics, roofs;
  • under siding;
  • facades;
  • partitions, ceilings and so on.

This insulation can be used to decorate rooms both inside and outside. Rolled fiberglass insulation is best used for insulation in a horizontal position. If you insulate the walls with it, then over time the material will begin to sag, eventually creating air-ventilated cracks.

For vertical structures It is recommended to use slabs. To install them, you will need to install a frame. If the insulation is placed from the inside, then it must be closed from the side of the room vapor barrier film. On the outside of the house, the insulation is covered with a windproof membrane. There is no need to secure the slabs to the wall with anything additional, since they are placed in a spacer and covered with film. In the kit, all this provides reliable fixation of the insulation in the frame. It is better not to use glass wool insulation in places exposed to high temperatures - more than +450°C, regardless of its thickness and size. Since then the binding component of the wool begins to evaporate, as a result its technical characteristics deteriorate.

Manufacturers and cost

1. The URSA company produces building materials for “green construction”. For glass wool, only high-quality and natural raw materials are used, not broken glass. URSA thermal insulation has a low thermal conductivity coefficient - 0.034-0.046 W/m·K. Available in thicknesses from 5 to 20 cm. One of the best insulation products from this company is the Pureone series. URSA Pureone thermal insulation is a unique fiberglass insulation that does not cause any harm to human health. She was one of the first to receive a safety and environmentally friendly certificate. Thanks to production using a special technology, URSA Pureone thermal insulation practically does not emit dust. Therefore, it is better suited for insulation than other similar insulation materials. medical institutions, schools and kindergartens.

2. Knauf mineral wool has increased elasticity, thanks to which it fits perfectly to any structure, and does not delaminate or shrink during its entire service life. Knauf fiberglass insulation is recommended for use in areas with high humidity, as it is protected from moisture. This thermal insulation does not retain moisture, but lets it pass further. Knauf insulation meets all fire safety standards and does not support the spread of fire. It is also odorless and does not rot. For the production of Knauf glass wool, phenol-formaldehyde components are not used, due to which this thermal insulation is considered environmentally friendly and safe. Available in thicknesses from 5 to 15 cm.

3. Isover insulation has high strength characteristics. The products of this company are marked with the EcoMaterialAbsolute certificate - this marking confirms that natural raw materials are used for production, without dangerous compounds. Belongs to the group of safe materials.

The price for 1 m2 of glass wool depends on its density, size and purpose. Table with prices at which you can buy fiberglass thermal insulation in the form of rolls or slabs of different sizes:

NameDimensions, mm (length/width/thickness)Quantity per package, pcs.Price, rubles
KnaufCottage5500x1220x1501 1 200
Cottage plus1230x610x1008 700
Thermo Roll10000x1200x502 1 500
Pitched roof9000x1200x502 1 500
IsoverProfi-1005000x1220x1001 670
Classic stove1170x610x5014 520
Sauna-5012500x1200x501 1 930
URSAGeo M-1110000x1200x502 1 160
Terra 34 PN1000x600x5010 380
Pureone6250x1200x502 1 220

The good property of glass wool to restore its structure allows it to be reduced in size by 6 times. As a result, it is more convenient to fold and transport. It is necessary to store glass wool in non-airtight packaging under a canopy so that it is not exposed to precipitation. If it is packaged in a special multipack, then outdoor storage is allowed.

Despite the abundance of various materials, glass wool has held a high position among for about 150 years. This is due to its low cost good characteristics.

Glass wool is most often made from broken glass, so care must be taken when using it. However, this inconvenience is compensated by excellent sound and heat protection functions. Thanks to these qualities, it is used not only for insulating buildings, but also for laying pipes, for insulating vehicles, in cooling systems and many other fields of activity.

This insulation is a type. However, both materials have significant differences in characteristics.

What are the differences between mineral wool and glass wool?

Both materials are insulation with a fibrous structure. However, the difference between them is quite big:

  • softer and more elastic than mineral wool. It has good hiding power, which allows you to insulate large areas. It is also easier to transport and costs much less.
  • Mineral wool absorbs less moisture, as a result of which it has a lower percentage of shrinkage. The heat resistance index is higher than that of glass wool.

Thus, when choosing between these materials, it is necessary to determine the conditions in the insulated room. For example, it is better to insulate an attic with glass wool due to its covering power, and kitchen area with high humidity it is worth insulating with mineral wool. When the budget issue comes up sharply, glass wool is the leader.

What characteristics does glass wool have?

Glass wool is produced in accordance with GOST 19170 2001. According to the classification GOST 31913-2011 and the EN ISO 9229:2007 standard, it is an insulation material.

It acquires its properties due to its fibrous structure:

  • Thermal insulation. The air between the fibers provides insulating properties.
  • Soundproofing. Glass wool fibers reflect sound well, resulting in high levels of this property.

Thick and long fibers of this material are located parallel to each other, due to which very high strength and elasticity are achieved. The strength of glass wool surpasses even steel wire. In addition, glass wool has the following characteristics:

  • Increased resistance to vibrations;
  • Does not affect structures;
  • Isolates uneven and complex elements thanks to its elasticity and high rate compressibility;
  • Not suitable for rodents;
  • Fungal infections and mold do not grow.

Also, this material does not age, does not corrode when in contact with metal, and is suitable for use at temperatures up to -60 degrees.

No material can be perfect. TO negative characteristics may include excessive fragility and increased moisture absorption. To protect against fragility, it is necessary to use special clothing and protective equipment (goggles, respirator, gloves), and to protect against moisture, glass wool is impregnated with various compounds.

Can glass wool catch fire?

This material does not burn, does not support combustion and does not spread it. It withstands high temperatures perfectly, retaining all its positive properties. Glass wool begins to sinter at temperatures above 500°. The upper limit at which the material begins to melt corresponds to the resins contained in the material. When the moment of their burnout comes, the glass wool begins to melt.

A positive point is the lack of release of toxic substances under the influence of fire. Thus, even melting glass wool remains safe in this regard.

How is glass wool produced?

Production is not particularly difficult. The main thing in this is strict adherence to the recipe and careful compliance with GOST. In addition, even cullet used in the production of insulation is strictly regulated by GOST R 52233-2004.

Main stages of production:

  1. Mixing. For 80% glass add 20% sand or other material (soda, dolomite, limestone).
  2. Melting. At temperatures above 1400° the mixture melts.
  3. Fiber Formation. The alloy is treated with a polymer aerosol, resulting in the formation of fibers that move along the conveyor.
  4. Polymerization. The temperature is cooled to 250°, resulting in a bright yellow finished material.
  5. Final stage. The glass wool is completely cooled, cut into the required sizes, and packaged in mats or rolls.

Production waste is a raw material that is recycled.

How is glass wool used?

Glass wool has a wide range of applications. It is used in aviation, pipeline laying, and the automotive industry. To solve various problems it is necessary various options this material.

For this reason produce glass wool:

  • Rolls;
  • Slabs - soft, hard, semi-soft options;
  • Matami is only the soft type;
  • Rolls reinforced with reinforcement;
  • Foil products;
  • Cached isolation.

In this case, rolls are necessary for horizontal insulation, cached insulation is used for pipeline insulation, and mats or slabs have wide application in construction.

The slabs are joined along the length in two ways:

  • Groove - tongue;
  • Groove - ridge.

Fiberglass is also produced. It is used for protection from wind.

How to work with glass wool correctly?

To ensure that there are no problems during operation, you must:

  1. Before starting work, straighten and clean the glass wool from crumbling particles;
  2. When insulating the ceiling, you can use lathing. If there is no sheathing, apply waterproofing.
  3. Apply glue, press glass wool to the surface, hold for several minutes.
  4. Use special clothing and protective equipment (gloves, respirator, goggles).
  5. Upon completion of work, treat clothing, hands and face.

What is better for floor insulation?

In addition to glass wool, expanded clay is used for floor insulation. The choice of material depends on specific situation and owner preferences. Often the choice falls on glass wool due to its lower price.

However It is worth remembering about its properties:

  • In areas with high humidity(kitchen, bathroom) it is better to prefer expanded clay;
  • If a large load is expected on the floor in the room(living room, for example), glass wool will also not be effective.
  • In low traffic areas(bedroom, attic) glass wool would be a good option.

Thus, in dry rooms with minimal floor load, glass wool is a good and inexpensive solution.

How to recycle glass wool?

Glass wool must not be disposed of with household or construction waste.

The following methods are used for its disposal::

  1. Burial at a landfill;
  2. Use in road construction;
  3. Application in brick production;
  4. Using the residue after burning it;
  5. Grinding to the smallest particles for reuse in glass wool production.

For proper disposal, you must either contact the manufacturer or a special service for recycling glass wool.

Does glass wool affect health?

On the Internet you can often see different opinions. Some argue that she is very dangerous, others come to her defense.

Let's sort it out individual cases:

  1. During operation. Glass wool is covered with other materials, which prevents particles from getting into the air. Harmful substances does not evaporate. Does not burn. Conclusion: there is no danger to humans.
  2. During work. Tiny particles can get into a worker's lungs, eyes, clothing or skin. There are no other dangers. Conclusion: there is a health risk.

To avoid risk when working with the material, Some rules should be applied:

  • Work exclusively in thick overalls that cover the body as much as possible;
  • Use personal protective equipment - respirators, gloves, goggles;
  • After work, you must wash your hands thoroughly, and only then wash your face;
  • In case of accidental inhalation or contact with eyes, rinse with plenty of water and seek immediate medical attention. Rubbing the affected area is strictly prohibited!

Compliance with these rules and care when working with the material will reduce the risk to a minimum.

What to do if glass wool gets on your skin or clothing?

Removing glass wool from clothing is a challenging task. For example, it is almost impossible to remove it from a woolen product. In this case, you should contact a dry cleaner. If it doesn’t help, all that remains is to dispose of it. For this reason, protective clothing when working with glass wool should be made of dense material. But it's not all bad.

To clean clothes you need:

  1. Vacuum thoroughly.
  2. Rinse in large quantities water 3 – 4 times, the last time under strong pressure of water. rub, use washing machine, washing with other things is prohibited!
  3. Dry.
  4. Vacuum again.
  5. Extend. It is best to use a solution laundry soap, but you can use any powder. Rub very carefully, machine wash is prohibited.
  6. Dry.
  7. Contact the dry cleaner stating the problem and describing the measures taken if these steps did not help.

If clothes can be thrown away in a pinch, then the situation with skin is more serious. Essentially the actions will be similar:

  1. Rinse your hands under high pressure of water, do not rub.
  2. Shake dry hair thoroughly;
  3. Rinse your face with plenty of water;
  4. Take a cool shower under strong pressure. Friction, washcloth, soap, hot or warm water prohibited.
  5. Dry naturally without using a towel.
  6. Take a shower using a washcloth and soap carefully. The water must be cool!

If some place remains inflamed, you can use the following remedies:

  • Apply a wet cold towel for a while;
  • Aloe – juice or inner part leaf;
  • Milk;
  • Calendula solution.

If the inflammation does not go away and the itching persists, you should consult a doctor.

What quality of material do the main manufacturers produce?

On modern market There are quite a lot of glass wool manufacturers. Let's consider the quality of products of some brands:

  1. Knauf– glass wool is produced according to German technology. The quality is high. Full compliance with Russian standards.
  2. Ursa– the material is intended for insulating the frame, roof, facade. The quality is high. Increased security.
  3. Hemah– convenient transportation thanks to 7-fold compression. Insulation of roof and ceiling. World class quality.
  4. Isover- for a variety of jobs. 2x compression. Quite high quality material.

Unlike many other insulation materials, glass wool has minimal weight due to its low density, high protective properties and a fairly simple installation technique. Fiberglass insulation can be produced in the form of compressed slabs consisting of numerous the finest threads, made from recycled glass, dolomite, sand and limestone.

Glass wool insulation

It is classified as a mineral building materials and different reasonable price and high-quality internal structure. Due to its high elasticity, the component can be used in the most different conditions, including relative to the floor and in inclined structures.

Fiberglass insulation options

As already mentioned, environmentally friendly and safe components on natural basis, which after heat treatment take the form of fibers. Their high-quality fixation to each other is carried out with special phenol-aldehyde polymer solutions, thanks to which the component can be used for a long time.

Each manufacturer produces material according to its own technological process However, its basis is almost always and everywhere identical. The differences relate to the size of the threads, impregnation, and density of the composition. Thus, it is customary to divide glass wool into flammability classes G1 and NG. On average, it can withstand temperatures up to 250 degrees, and in some cases up to 450 degrees, depending on its composition and direction of application. Perfect aerosols allow achieving low percentage connecting components.

Video No. 1. Ursa glass wool after 8 years

Today, glass wool-based insulation is popular for exterior and interior decoration and floor construction. They can easily seal all kinds of cracks and crevices, insulate pipelines and other communications. It goes on sale in the form of slabs and rolls. It is worth noting that the latter representation is the most convenient for thermal insulation large areas, also suitable for floor insulation.

Existing elastic, semi-rigid and rigid fibers differ from each other only in their looseness or density. So, for example, a material with maximum flexibility necessarily has a low density, with long threads it has excellent sound absorption, and when pressed it shows excellent heat retention properties.


Technical parameters of glass wool

  • operating temperature -60..+250 degrees;
  • thermal conductivity 0.039..0.047 W/(m K);
  • fiber length 15..50mm;
  • fiber thickness 5..15 µm;
  • vapor permeability 0.001..0.6 mg/mh·Pa;
  • sound absorption coefficient 35..40dB;
  • water absorption coefficient up to 15%;
  • sorption daily hydration up to 1.7%.

Distinctive features of the material

  1. Cotton wool exhibits excellent resistance to vibration and excellent acoustic effect, which allows it to be used efficiently for sound insulation of walls and floors of buildings.
  2. Excellent thermal insulation properties allow it to be used for floor finishing. This is explained by the structure of the material, its long threads at the base, which have a twisted appearance with a slight internal space filled with air. Due to this feature, the thermal conductivity of the insulation is limited. Moreover, it itself becomes an excellent wind barrier and protection from external influences.
  3. Compressed cotton wool has ideal elasticity and strength. It is excellent for protecting surfaces subject to significant mechanical loads, including roofs. Moreover, glass wool will adhere well to the surface of a building of any composition.
  4. Flame resistant. Despite the fact that various types of resins are used to bind the internal structure, insulation does not belong to the class of spontaneously combustible materials.
  5. Increased resistance to deformation, biological and chemical influences. Glass wool in the form of slabs, as during installation work, and after them, retains its size and shape. A special feature should be considered the antifungal effect and low attractiveness of the component for small rodents.
  6. Cotton wool has minimal mass, but can be compressed to more than 6 times its existing volume. Thanks to this, the material is very easy and profitable to transport and install on all types of surfaces. After unpacking and laying, due to the elasticity of the threads and the “memory” effect, it takes on its original appearance.

Scope of application

Glass wool has been successfully used for a long time to protect:

  • gender;
  • roofs;
  • facade;
  • interfloor spaces and ceilings.

It is easy to eliminate cracks and spaces that have difficult or limited access. Despite the fact that the material is not produced in cylindrical form, pipes cannot be used to insulate all types of pipelines using rolls. The only limitation concerns communications that have a coolant with a very high temperature. Vata is advantageous offer for soundproofing internal and external partitions at home, with mandatory subsequent plastering of walls or ceilings.

Comparison of stone and glass wool

Ordinary glass wool differs little in its features, characteristics and properties from basalt-based mineral wool. The structure of the material is usually identical. At the same time, the price of fiberglass is often three times more profitable than the melt composition rocks. This is explained by the availability of raw materials obtained, as a rule, by recycling.

In addition, stone wool is significantly inferior in sound insulation parameters, since the length of its fibers is on average four times less than fiberglass fibers. At the same time, glass wool is inferior to mineral wool in terms of resistance to high temperatures, as well as in its hygroscopicity. Due to building regulations, the scope of application of fiberglass components is limited.

Glass wool significantly outperforms stone wool in terms of hardness, resilience and elasticity. We also note that it is much easier to give it the necessary shape than in any other case. The material will be able to repeat the curves of the selected surface, will fit without gaps, and the amount of waste at the end of the work will be insignificant.

At the same time, the installation of glass wool must be carried out much more carefully, because it is quite possible to irritate the mucous membrane and skin.

The biggest advantage, compared to basalt wool, is that glass wool is not attacked by rodents.

Of course, rodents are capable of chewing out a nest in glass wool and then settling in it. But it is worth understanding that stone wool Rodents can eat it, unlike fiberglass, which does not cause them any interest in this regard.

Video No. 2. Glass wool roof insulation

Features for safe operation

The material in the form of pressed cotton wool is very often used for interior decoration, in particular floors, so you should know the basic safety principles for working with it.

It is recommended to take into account that the insulation is made from glass, very thin and long fibers, quite fragile and brittle. Small particles of cotton wool can cause significant skin irritation, respiratory system and mucous membranes of the eyes. For this reason, it is recommended to always use by individual means protection, such as special clothing, a respirator, gloves and goggles.

If microparticles get on your skin, you should not wipe them with your hands, since it is easy to drive glass microelements deep into the tissue. Here it is better to rinse the affected area with running water.

After finishing laying the floor or walls, try to take a shower immediately without using hard sponges or detergents. First you need to shake off as much dust as possible from your hair and body. As a rule, clothes are disposed of after the first use, since it is almost impossible to remove all the fragments from them.

If cotton wool is chosen for floor insulation, then it is necessary to additionally lay a layer, film, etc., eliminating the possibility of abrasive composition and dust penetrating into the room.

With the right approach, glass wool is absolutely safe and harmless. It is worth considering that the component is not very resistant to moisture, so open form it is practically not used, or requires special thorough protection. However, there are also options made according to special technology with stretching of threads, due to which the finished material is able to withstand moisture, although the price for them differs significantly in a larger direction.

Video No. 3. Glass wool Isover

Conclusion

Experienced builders have noticed, regardless of whether it is a product for insulating a floor, roof or walls, that the more expensive it is, the higher the quality, harmless and easy to install.

Fiberglass insulation has been known to domestic consumers for quite a long time. It is believed that this inexpensive option for protection from cold big houses And small apartments. It can be used in combination with other materials, increasing efficiency, and can be used for interior and exterior work. The disadvantage is the release of mineral particles into the air, which can be harmful to health. Therefore, it is worth observing safety precautions when laying insulation. Most famous manufacturers glass wool: Isover, Knauf, Ursa.

The technical characteristics of the material have improved significantly, thanks to innovative technology. The thickness of glass wool has become much smaller, so its thermal conductivity coefficient has decreased. The indicator in dry air and a temperature of 25°C is 0.035-0.045 W/(m°C). The value varies depending on the density parameters. The starting materials for manufacturing are sand and glass dust. The components are mixed in a special container, where they melt well under the influence of high temperature(from 1500 °C). The resulting mass is pulled into bundles and heating is continued with an admixture of bitumen as a binder. For enhanced adhesion, phenol-aldehyde polymers are added.

The technology is identical for almost all manufacturers, but the resulting mats and rolls differ in characteristics: thread length, compression ratio, thermal conductivity, thickness. Depending on the looseness, there are hard, semi-soft and elastic wool. Material with the smallest value density is flexible, with long threads it absorbs noise well, and the most compressed appearance better protects against the cold. The main difference from mineral wool is that it is not damaged by rodents.

Review of manufacturers

You can buy insulation from various manufacturers:

It is environmentally friendly, highly energy-saving, does not retain moisture and is breathable. Glass wool rolls are non-flammable and lightweight due to the pressing technique. The thickness varies between 5-10 cm, thermal conductivity – 0.041 W/(m°C). There are types with a film layer that provides a vapor barrier and aluminum foil to reflect energy. Operational life - 50-70 years, reasonable cost.

The insulation has excellent characteristics. During manufacturing, it loses its fragility and gains flexibility and elasticity. The thermal conductivity of glass wool is lower than that of polystyrene foam, so wool protects better from the cold. The parameter ranges from 0.030 to 0.040 W/(m°C). Density of rolls – 11, slabs – 16 kg/mK. The use of water repellents ensures resistance to moisture and atmospheric phenomena. The insulation resists fungus and aggressive environments well.

Made from environmentally friendly raw materials, does not contain harmful additives. Cotton wool has a fire hazard class of zero and maintains the indoor microclimate well. Thanks to the waterproofing glass wool shell, the insulation is resistant to moisture. Depending on the purpose, you can buy a type that is mounted on the facade, roof, walls and floor. For ventilated structures it is better to choose rolls, interior decoration and roof protection is done using slabs. The declared service life is at least 50 years.

Scope of application of glass wool

Fiberglass insulation is used in residential buildings, industrial buildings, pipelines. Considering the characteristics, cotton wool is suitable for the following purposes:

1. In lightweight structures that are not subject to load, mats 5 cm thick can be laid.

2. For internal partitions, ceilings, floors.

3. Roofs and attics of all types of buildings.

4. Horizontal fencing systems.

5. Main oil, gas and water pipelines.

6. For insulating equipment with operating temperature from 60 to 400°C.

7. In the device cement screed and leveling layer.

Is fiberglass dangerous?

During operation of glass wool, microparticles are released into the air, settling on respiratory tract and human mucosa. If the rolls do not have specific additives that prevent the spraying of small fibers, in order to avoid harm to health, it is better to lay the insulation on the outside of the building. The danger does not only come from inhaling glass dust. Contact with mats also has negative influence. Upon direct contact, the particles damage the skin, causing itching and irritation. If fibers get on unprotected areas of the body, it is strictly forbidden to rub them. To avoid harm, it is recommended to use running water, without detergents. The skin should be allowed to air dry and should not be wiped with a towel.

Phenol and formaldehyde are added to the slabs. Over time, these substances may begin to evaporate, confirming consumer reviews that glass wool is harmful to humans. But this applies to products that have undergone insufficient processing during manufacturing. Modern manufacturers They try to prevent this possibility, ensuring the maximum environmental friendliness of the material.

Laying rules

Installation of glass wool insulation is carried out in several steps: creating a frame, preparing sheets, placing between guides, fastening, sealing seams, sealing. Softer mats are taken for horizontal surfaces, hard – for vertical and pitched roofs. It is better to buy rolls with a small thickness for internal protection; wide and dense slabs are suitable for facades and attic floors.

External cladding includes:

  • Leveling the surface, eliminating defects.
  • Sheathing fasteners.
  • Laying glass wool insulation on glue or placing it closely between frame elements.
  • Installation of a wind barrier or diffuse membrane.
  • Creating a second tier of guides.
  • Finishing.

To protect the roof it is necessary additional use vapor barriers. In this case, it is necessary to take into account ventilation gap. Installation inside the house is similar, the use of a hydrophobic film is recommended, especially for wooden structures. It is important not to forget about sealing the joints; they are glued with construction tape, which helps prevent moisture from entering. When working with glass wool, you should wear protective clothing and a mask, following safety rules.

Price overview

To purchase suitable look insulation, it is necessary to determine for what purposes it is used. The most famous companies offer various types, with optimal properties. Approximate prices per m2 of fiberglass are shown in the table:

Glass wool insulation has a number of advantages that ensure versatility of use. It can be used inside and outside residential buildings, industrial buildings, pipelines. When installing, it is necessary to take into account the characteristics of the material and follow safety rules so as not to expose the body to microparticles during cutting and laying slabs.