Penofol is an insulating material that combines heat, noise and vapor barrier properties. Its basis is self-extinguishing polyethylene foam, foiled with aluminum (on one or both sides). The thickness of the material sheets is from 3 to 10 mm.

When installing, it is important to avoid overlaps; butt installation is the most suitable option.

This insulating material, despite its small thickness, has very low thermal conductivity. The application provides high resistance to heat transfer due to special properties. Large quantity closed pores and high reflectivity of polished aluminum foil reduces the radiant component of heat transfer, which has highest value in total heat loss.

Penofol is practically combined as a reflective vapor barrier when used with mineral wool and fiberglass insulation. It is also advisable to use it in structures that require a noise and heat insulator of small thickness. Vapor and waterproofing qualities make it possible to completely replace traditional vapor barriers. Due to its lightness and flexibility, it fits seamlessly into structures suspended ceiling and "warm floor".

Since the start of production, the structure, application and properties have undergone quite a lot of changes. Initially, it was a roll of sewn polyethylene foam, foiled on one side with aluminum. Classic version finds application and is in constant demand even now. Over time they began to produce various types penofol with additional properties:

• Type A - one-sided foil. Used in combination with other insulation materials (foam plastic, styrodur).
• Type B - double-sided foil. Can be used autonomously.
• Type C - one-sided foiling, the second surface is covered with an adhesive composition with protective film. It is glued to the main insulation or to the base.
• Type ALP - one of the surfaces is covered with foil (14 microns), laminated on top plastic film.
• Types M and R - embossed with one-sided foil.
• Perforated. It has the property of allowing air to pass through due to its structure.

Areas of application

How widespread the use of the material is is evidenced by the list of objects where it is used in one form or another:

• walls of buildings (inside and outside), attics, mansards, basements, non-permanent buildings;
• production facilities and technological equipment;
• heat, steam and waterproofing of saunas, showers,
• insulation of heated floors and roofs;
• pipelines and expansion tanks;
• vehicle bodies, commercial and residential trailers, refrigerators;
• insulation and sound insulation of air conditioning, ventilation and sewage systems;
• as heat reflectors for home radiators.

Wall and ceiling installation

Type A. The material is attached using a stapler to inner surface walls or ceilings with foil inside the room. Laying is carried out “joint to joint”. The joints are sealed mounting tape(“LAMS”). On top of the layer, slats are attached (thickness 1.5-2 cm), intended for fastening facing material. The slats will provide an air gap between the foil layer and the cladding and, as a result, the reflective effect of the foil.

When installing a layer of material behind home radiators, heat loss is reduced by 20%.

Type B. When using this type of material, the slats are pre-stuffed onto the structure. The sheets are cut to size, fastened with a stapler, and the joints are sealed with aluminum mounting tape. Slats are also attached on top of the penofol layer as a basis for finishing. With this method, the properties of both foil surfaces are maximally realized.

If it is expected outer gasket thermal insulation, perforated penofol is used. It is mounted with the foil facing outwards in front of the facing layer. At particularly low outside temperatures, it is advisable to use the material together with foam plastic or mineral wool.

Roof vapor barrier

IN multi-layer roofs penofol is mounted between battens. Required condition- ventilation of air spaces. The sheets are attached along the floors using the same technology as on the walls. If the roofing equipment project calls for the use of polystyrene foam, then with the installation of polystyrene foam the costs will be reduced by 2-3 times with the same quality.

When arranging an insulated attic, the material is laid in parallel eaves overhang directly to the rafters. The overlap of the strips is left at least 10 cm. Penofol is attached with staples without tension, forming a sag of about 2 cm. This will allow condensate to be freely drained from the counter-lattice rafters. Since the flow of moisture is directed upward from the premises, water vapor, condensing, moisturizes the insulation. Therefore, a layer of penofol is attached underneath.

Insulation installation methods

A layer of insulation from type A or C is laid under the finished floor. A concrete screed with expanded clay is pre-poured. It can be replaced with a layer of foam plastic (5-10 cm). Penofol is glued or attached to the foam plastic with an overlap of about 10 cm around the perimeter of the walls. The joints are sealed with aluminum tape.

Moisture, the passage of which is prevented by the material, can settle on it. To create a ventilated space, slats (1.5-2 cm) are placed above the foil layer. When installing a wooden floor, their role is played by logs. Logs, like slats, are impregnated with drying oil or antiseptic.

When installing a “warm floor,” the insulator is placed on a dry screed with the foil layer down; in another option, the reflective layer is directed into the room. In this case, a polyethylene film is laid on top of the penofol. Type B is used for flooring lower floors over damp and cold basements.

When installing a “warm floor”, if a screed is planned to be poured over the heating elements (for example, under a tile), ALP type penofol is used. Cement mortar aggressive towards aluminum. The sheets are placed on the screed with foil up with a 10 cm bend on the walls and taped with aluminum tape. After installation heating elements a reinforcing mesh is placed and the screed is poured. The edges are trimmed.

Penofol type A and C is used when installing heated floors under floorboards. When laying heating elements on the material, remember that the foil layer has conductive properties.

Floor insulation with penofol is ensured due to the reflective effect of the foil layer. It promotes uniform heating of the coating. 20 dB reduction impact noise. The penetration of moisture is excluded.

https://youtu.be/diJknmnRqZc

Use for insulation of balconies

The foil layer reflects up to 97% of the heat into the room. This makes penofol an effective insulator for insulating balconies and loggias. Due to its small thickness, it does not “conceal” the useful volume of the room.

Dismantled before insulation work old finish. Corners and crevices are sealed polyurethane foam. A heat insulator (penoplex, technoplex) is glued or attached to the walls. Vertical logs are attached through it with dowels to the wall in increments of the width of the penofol roll. This sequence takes into account the high thermal conductivity of wood and reduces the risk of freezing. Penofol is attached to the joists with a foil layer towards the room.

Penofol fastening is not required special tools. To work, you need a knife (scissors), a stapler (hammer) or a glue brush.

https://youtu.be/4JT_Sud8sBE

The cost of the insulating material depends on its thickness and the number of foil shells. Single-sided penofol can be purchased at a price of 45-75 rubles/m2, double-sided - 70-110 rubles/m2. For laying penofol, contractors usually request a fee equal to the cost of the material itself.

The construction of any facility is impossible without the use of thermal insulation materials. With their help, resource costs for heating are reduced. One of the popular solutions is foil penofol. It is chosen for its excellent characteristics. The installation procedure for the material does not contain any complicated aspects. Even a beginner can easily handle this work. Compared to other solutions, it costs significantly less. The result is high-quality and inexpensive insulation of premises.

Penofol is one of the most popular and widespread types of insulation.

Features of the structure

Penofol is usually classified as a reflective insulation product. It was developed specifically for protection various surfaces from negative factors such as cold, moisture and steam. Over the years of its production, the product has been improved. As a result, it acquired not only excellent thermal insulation properties, but also protection from water and sound. Its structure contains several layers:

This material belongs to the category of heat reflective thanks to the foil, which is attached to polyethylene “foam”

1. The first one is polyethylene foam. It has many pores closed type. They are 90% filled with air. This is what prevents heat transfer.
2. Aluminum foil is the second layer. It provides effective heat reflection. Penofol can be covered with foil on one or both sides. This moment influences its main technical specifications, and also determines the features of application. To reliably connect the base with the metallized layer, the heat welding method is used.

If you have not yet decided on the choice of foil insulation for your home, be sure to watch this video:

For polyethylene, the thickness varies from 2 to 40 mm, and for foil this parameter ranges from 12 to 30 microns. Availability air cushion, which is covered with a reflective element, ensures heat retention for a long time. The use of penofol during the construction of a house makes it possible to save on heating the home. IN summer time heating of the object slows down noticeably.

Specifications

Penofol differs from most other materials in that moisture does not have any effect on its characteristics.

When studying foil penofol, consumers study the characteristics first of all. They are one of its advantages. Such important parameter The thermal conductivity of this solution is quite comparable to that of mineral insulators. Its use for attic insulation reduces heat loss in winter time. Thanks to the metallized layer, the material is able to reflect up to 97% of infrared radiation. As a result, its use is an opportunity to create comprehensive thermal insulation of a room.

The insulator absorbs moisture well, and its vapor permeability tends to zero. It differs from most other materials in that moisture does not have any effect on its characteristics. Change temperature regime also does not change them. When penofol is used for thermal insulation work, there is no need to create protection against steam. The insulation acts as a good barrier to its penetration.

To solve problems on effective sound insulation foil penofol is mounted directly on top building structures. At the same time, in terms of environmental friendliness, it is one of the most best solutions. The durability of the insulator is also at a high level. Its use allows not only to insulate the room, but also to prevent the penetration of electromagnetic radiation inside.

Main Application this insulation– roof, walls, bathhouse, loggia, where there is a layer for reflection

Advantages and Disadvantages

Like any solution in the field of thermal insulation, penofol has certain advantages. They are the first thing consumers consider when looking for an effective insulator. Positive characteristics:

Although penofol has many advantages, it is still not without its disadvantages. One of them is excessive softness. This feature imposes certain restrictions on use: the material cannot be used for thermal insulation of walls under plaster or wallpaper; in some cases, a special adhesive composition is required for fastening (this disadvantage is absent if the consumer has chosen self-adhesive insulation for the work).

Although foil insulation has good thermal insulation properties, it should not be used as the primary solution for improving the performance of external walls. It is ideal as an additional layer of insulation to improve the protection of the structure from moisture and enhance the reflection of thermal energy.

Scope of application

Speaking about foil penofol, the use of this insulator can be varied. In this regard, it is a universal material. It can be used to insulate surfaces in apartments and country houses. Due to its characteristics, it is often chosen for thermal insulation of the foundation, as well as when used in the house repair work. This solution is most effective for thermal insulation:

1. Residential buildings.
2. Baths and saunas.
3. Administrative and industrial facilities.

It can also be used to improve the structural performance of public buildings. For example, in hospitals and kindergartens. It is excellent for insulating heated and cold hangars, as well as warehouse buildings.

Surfaces insulated with this insulation do not release heat to the outside in the winter. In the summer months, penofol provides comfortable living conditions. To keep the house from getting hot, it is enough to simply arrange a layer of this material in the under-roof space of the structure.

Installation nuances

This soft material, therefore it cannot be laid under plaster; another finishing coating will be required, for example, plasterboard or wall panels

The procedure for laying a heat insulator has certain features. Taking into account the nuances can be provided high quality works and exclude extra costs for heating:

1. When laying penofol with a one-sided metallized layer, it should face towards the heat source.
2. During installation, it is necessary to ensure an air gap. His optimal size- 2 cm. It is necessary for effective ventilation.
3. When fixing the insulation, any joints that arise between the sheets must be eliminated using foil tape.
4. The butt-to-end connection method ensures uniform thermal reflection from the insulator. However, when work is carried out on a loggia, joining the material with an overlap of up to 10 cm is quite acceptable.
5. When carrying out the procedure, you need to remember that one of the layers of this solution - aluminum foil - conducts electricity well. Therefore, if the insulation is located close to electrical wiring, then you need to think about high-quality insulation of the wires.

When thermally insulating roofs or inclined walls of attics, installation of penofol is carried out by attaching to the lower planes rafter boards

When choosing penofol, the technical characteristics should be found out first. This allows you to pick best option to solve the problem that has arisen. Foil insulator is good decision when it is necessary to perform high-quality thermal insulation of an object. Its advantage is its small thickness, as well as the ease of installation. Even a beginner can handle the installation work. You just need to know the basic nuances when carrying them out.

Many consumers who have chosen penofol are also interested in the flammability of the insulation. There is no need to worry about this - it is classified as low-flammable. When installing it, it is worth using the overlap method. It is best to use aluminum tape to seal joints.

At making the right choice Insulation can be omitted from installing a waterproofing layer. The result is good savings for the owner of the facility and a significant improvement in the thermal insulation characteristics of the room.

Foam-based foil.

For complex insulation residential and non-residential buildings the following are used synthetic materials: expanded polystyrene, penoplex, polystyrene foam, other polymer products, including penofol. The technical characteristics of the latter are quite good. Unlike its counterparts, which accumulate heat and then return it to the room, it reflects thermal radiation. As a result, the level of thermal permeability of the building is reduced several times. Another advantage of this insulation is fire safety. You can insulate walls with penofol from the inside and outside. Neither weather conditions, nor a possible aggressive environment will harm him.

What is penofol?

Penofol is a foamed, foil-coated polyethylene with a closed-cell structure. Today you can buy following types of this material:

• A – foil is applied only on one side, which reduces the cost of purchase;
• B – foil is applied on both sides. This increases the resistance of the material to physical stress;
• C – foiling occurs only on one side, while the other is covered with a durable adhesive. This simplifies the use of insulation in hard-to-reach places;
• ALP – foil on one side. A polyethylene film is applied over the aluminum layer. Used in agriculture;
• R – the upper, reflective layer has a relief structure;
• NET – characterized by increased vapor barrier, and therefore is used when laying heating main pipes and water utilities;
• AIR – indispensable for thermal insulation of ventilation wiring.

The thickness of the pillow may vary.

Penofol has the following characteristics:

• ultra-low thermal conductivity, which ranges from 0.037 W/m°C to 0.052 W/m°C;
• surface reflectivity of thermal radiation from 95% to 97%;
• low water absorption 0.35-0.7% per 1 cubic meter;
• low vapor permeability 0.001 mg/m h Pa;
• high level of sound insulation - over 32 dB;
• compressive and bending strength – 44-74 kg/m. cube

It is very convenient to insulate walls with penofol from the inside and outside of the building, since it does not create additional loads on the ceiling. Material weight 44-74 kg/m. cube (weight depends on the type of thermal insulation). Floor insulation with penofol is also relevant. After all, the material is not afraid of temperature changes (the operating temperature range is from -60°C to +100°C).

Penofol and floor

It is necessary to leave a ventilated gap.

Thermal insulation of the floor wooden house . Floor insulation with penofol in a wooden house is carried out along logs. In this case, material types A and B can be used. The installation method depends on the type of thermal insulation chosen. We have already written about complex issues earlier.

Method using type A insulation. Work progress:

• surface preparation;
• choice of timber;
• organization of vapor barrier;
• laying the lower tier of logs;
• installation of the main insulation;
• laying penofol;
• second tier of logs;
• floor finishing.

The previous coating is completely removed down to the foundation. The surface is cleaned of debris and dust. To do this, it is advisable to use an industrial vacuum cleaner.

Penofol, as an independent thermal insulation material, cannot protect a building from heat loss. That is why it is used in combination with the main insulation, for example, polystyrene foam, mineral wool.

The height of the beam should be commensurate with the height of the selected main insulation plus 5 cm to create a ventilated gap. In most cases, beams of 100 mm by 100 mm or 100 mm by 150 mm are suitable, where the first value is the height, the second is the width of the product. If necessary, the height is increased. The length is chosen arbitrarily. Experts recommend choosing the length of the beam in accordance with the size of the room. Otherwise, the logs will have to be extended, which will negatively affect the stability and strength of the structure.

The joints are taped with special tape.

The vapor barrier can be a polyethylene film or a special membrane. In some cases, penofol type B is used. The previously selected beams go on top of it. They are laid across the width of the room in increments of 35-40 cm. At the same time, a distance of 1-2 cm is made from the walls. This is needed to compensate for the thermal and operational expansion of the logs. A gap of 1-2 cm is maintained between the last lag and the wall, regardless of the pitch of laying the beams.

The main insulation material is installed by surprise. In this case, there should be no gaps between the joists and the thermal insulation. Penofol is laid on the insulation with the foil layer down. Floor insulation with penofol in a wooden house is not overlapped. This will have a bad effect on him protective functions. Only an overlap of about 10 cm is made on the walls. The joints between the sheets are glued with adhesive aluminum tape. Next, a second tier of lags is arranged on top of the foil material, along which the rough floor and finishing go.

Stapler or construction staples Suitable for fixing if the balcony is insulated with penofol.

Thermal insulation of concrete base. If insulating a wooden floor with penofol is impossible without organizing double logs, then with concrete or cement base everything is much simpler. The main requirement is a perfectly smooth rough coating. For residential and administrative buildings It is necessary to have an additional layer of thermal insulation under the rough floor screed. The next condition is ventilation gap. It should be located above the foil part of the penofol. Otherwise, condensation will accumulate on the foil, which will negatively affect the protective properties of the thermal insulation pad.

The joists are placed on top of the reflective insulation.

Experts tell you how to insulate a floor with penofol correctly concrete base. All work is carried out in several stages:

• rough floor screed;
• installation of penofol;
• installation of a metal frame;
• organization of the second layer of penofol;
• floor finishing.

On top of the rough concrete screed Penofol is laid on the floor. Here it is advisable to use type C material, since it already has an adhesive composition on one of its sides and is easier to work with. Penofol is mounted end-to-end on the floor, an overlap of 10 cm is made on the walls. All seams are taped with foil tape. Next they organize metal frame, on which the second layer of penofol is laid. There is another metal frame on top. It will act as a support for rough and finishing flooring.

If insulation is carried out unheated premises or buildings that are used only in the warm season, one layer of penofol is enough.

Penofol and roof insulation

Penofol is placed with the reflective surface inward.

The main requirement when insulating the attic and ceiling of a house is good vapor barrier. In the absence of such moisture, which accumulates in indoors, will penetrate into the insulating material. This phenomenon is explained by the difference in steam pressure inside and outside the building. Gaseous water, accumulating in the insulation layer, leads to a deterioration in the technical characteristics of the latter. As a result, over time the entire thermal insulation pad has to be replaced. In the worst case, moisture strikes wooden floors and beams of the house. They rot and lose their strength.

When organizing a vapor barrier, a ventilated gap is required. After all, there is always a possibility of moisture penetrating into the upper layers of the thermal insulation pillow of the ceiling. The air gap will allow the accumulated condensation to be removed from the insulation. When the ceiling is insulated with penofol, there is no need to create a ventilation gap between it and the main layer of heat-protecting material. Penofol has low vapor permeability. In addition, this product is coated on one side with an adhesive substance, which simplifies the installation process.

Insulating the attic with penofol also has its advantages. If external work is carried out, penofol can replace the waterproofing barrier, plus additional thermal insulation is provided attic space. Inside the attic, penofol is installed below the insulation, protecting the latter from water vapor. The use of penofol also helps to reduce the thickness of the layer of the main thermal insulation material. For example, a layer of penofol 4 mm and mineral wool 100 mm is equivalent to a 200 mm layer of mineral wool.

Only original material will be able to provide full protection buildings from heat loss. How to choose the right penofol is described in the video:

Insulation of building envelopes

With external insulation, the reflective surface faces the street.

Insulating external walls with penofol has a number of advantages. This additional protection buildings from heat loss. This material is a high-quality vapor barrier on the way gaseous water. Penofol can act as a water barrier. When a house is insulated from the inside with penofol, in addition to heat-reflecting and vapor barrier properties, it performs the function of effective sound insulation.

Nuances of external insulation. Is it possible to use penofol insulation for external work? The use of this material for thermal insulation of the exterior of a building causes disagreement among experts. Some are categorically against penofol, considering it ineffective in combating precipitation. Some people complain about the appearance of mold on the walls, the outer side of which is covered with penofol. According to the manufacturer, all of the above problems can arise if the installation is carried out incorrectly and the instructions for using foil thermal insulation are not followed.

Typical mistakes when installing penofol:

• incorrect location of the reflective surface;
• lack of ventilated gap;
• organization of closed ventilated gaps.

Thus, insulation is always laid with a reflective surface towards the heat source. That is why type C material (with an adhesive composition on one of its sides) is not used for external thermal insulation. IN in this case penofol, foiled on both sides, is relevant. It is characterized by low thermal conductivity due to double reflection of thermal healing. This allows you to reduce the thickness of the main insulation.

The ventilation gap should be made between the finishing and the insulation, and not between the penofol and the wall.

The second nuance is the mandatory presence of a ventilated gap. Otherwise, the walls of the house accumulate condensation. This explains the appearance of mold inside the building. The next nuance is choosing the right brand of material. The wall is insulated from the outside with penofol type R, which implies a relief structure on one of the foil sides. It is the relief structure that makes thermal insulation resistant to precipitation, thereby extending its service life.

When external roof insulation is carried out with penofol, this material is used both as a vapor barrier and as a water barrier. Penofol is placed between interior decoration attic space and basic insulation. There is ventilation between them. The second layer goes on top of the insulation and under the main roofing material. There must be draft inside the ventilated gaps, that is, the air must enter under the eaves and exit at the ridge of the house. Only in this way can condensation be prevented, maximum thermal protection of the roof and drying of its rafters possible.

The feasibility of using penofol

Penofol is not only a modern thermal insulation material. It acts as a hydro- and vapor barrier, significantly increasing the life of the building, protecting it from the effects of precipitation. The action of penofol is based on the reflection of thermal radiation, and not on its absorption. This is what distinguishes the above product from other insulation materials.

Is it possible to insulate the ceiling with penofol? How effective is the use of this insulation in the attic? Penofol is versatile and therefore suitable for thermal insulation of any part of the building. Is it possible to insulate the floor with penofol in a wooden house without disturbing the air exchange of the building? Penofl will not cause harm to the wooden frame if during its installation you take care of the presence of ventilated gaps. They prevent the formation of condensation, help remove excess moisture vapor from the outside of the building, and also act as additional thermal protection.

Penofol, which has no competitors, has excellent characteristics. Its flexibility allows it to fit perfectly on any surface. Among all the diversity modern materials penofol has gained the highest popularity. Penofol, like any building material, has its pros and cons. In this article we will analyze the advantages and disadvantages of penofol and its scope of application.

When renovating or building a house, almost all surfaces are finished: ceilings, floors, interior and exterior walls. This, as a rule, is the insulation of surfaces, as well as their steam, sound and waterproofing. But if “sound” and “steam” don’t particularly bother developers, then everyone thinks about heat.

Construction markets offer huge assortment thermal insulation materials, the use of which is determined by their technical characteristics. New material- penofol appeared relatively recently. Let's try to understand whether it makes sense to give preference to this particular material.

Penofol - what is it?

Penofol is a multilayer material based on polyethylene foam. The base is covered with a thin layer of aluminum foil. Penofol is a type of reflective insulation. It is unlikely that the average buyer will be interested in the modulus of elasticity or other technical details of this material. Therefore, we will consider the types, scope of application, installation basics, feasibility of use, advantages and disadvantages of penofol.

What types of penofol do manufacturers offer?

Penofol is offered by manufacturers of the following types:

• Type “A” - the base is covered with foil on one side.

• Type “B” - double-sided coating with a protective layer.

• Type “C” - foil on one side, self-adhesive layer on the other.

In the first option, to preserve heat, the foil side of the penofol should be facing towards the room. The use of penofol type “B” allows you to prevent excessive heating of the room in the summer, and to retain heat in the winter. The third option is used for thermal insulation of surfaces in hard-to-reach places.

Manufacturers also offer other types of penofol: with reinforcement, perforation and a number of other features. In any case, the principle of action of penofol creates the effect of a thermos. In a room insulated with this material, you will not have to run the air conditioner in the summer or the heating boiler in the winter.

Where is penofol used?

• The material is perfect for insulating walls (external and internal), floors and roofs of buildings.

• Indispensable for thermal insulation of ventilation systems and air ducts.

• Used for insulating cars and machinery.

• It is an ideal insulation material for balconies and loggias.

• Installed behind heating radiators.

• Serves as a heat insulator for pipes and pipelines, but on top of mineral wool insulation.

• This material is very convenient for arranging thermal insulation for temporary buildings, modules for trade, and stalls.

It is worth noting that for thermal insulation external walls buildings penofol is used as additional insulation, which, first of all, protects walls from moisture and reflects thermal energy.

What rules must be followed for installing penofol?

• Before installing the insulation, any surface is cleaned, its unevenness and cracks are eliminated.

• This material is absolutely waterproof. Therefore, between penofol and additional structural elements there must be a free air space of at least 20 mm. To do this, a frame made of wooden slats, to which penofol is subsequently attached.

• Aluminum is a good conductor of electricity. That's why contact of penofol with uninsulated or low-quality electrical wires is unacceptable. Before we start installation work The quality of the wiring is carefully checked.

• Using a knife, penofol is cut into strips of the required length. Further using furniture stapler the insulation is attached to the wooden frame. The strips are laid end to end. Attaching penofol with an overlap is unacceptable. If steam forms, the accumulated condensate will flow down the overlap lines. The joints of the insulation are taped with aluminum tape.

• Because an air space of 2 cm should be on both sides of the penofol, then it is installed again wooden frame. The slats of the second frame are aligned with special care, because this design finishing material will be attached.

Unfortunately, it is not entirely advisable to use devices that pierce it to attach penofol. Sloppy work can worsen the thermal insulation qualities of this insulation. For this reason, penofol began to be produced with a self-adhesive surface.

What are the advantages and disadvantages of penofol?

The advantages of penofol are determined by the following qualities:

• the small thickness of the material nevertheless provides decent thermal insulation of the premises;
• ease of installation, no penofol required when installing professional tools, the material does not crumble or break;
• environmental friendliness, penofol components are even used for food storage;
• waterproof;
• fire safety;
• is an excellent noise and waterproofing agent;
• ease of transportation, thin material is rolled into compact rolls;
• affordable price.

TO shortcomings penofol can only be attributed to its softness. It is enough to put a little pressure on the material and it will bend, so finishing penofol with wallpaper or plaster is impossible.

Having studied the main characteristics, advantages and disadvantages of penofol, we can conclude that the insulation of buildings and structures is the most modern thermal insulator excellent option. Penofol protects not only from cold, but also from extraneous noise and moisture. At the same time, the loss of free space in the room and the consumption of thermal insulation materials is minimized. This fact will please any owner.

Video: Technology internal insulation Penofol

How to choose a gas boiler?

The modern market for insulation materials is quite dynamic. Requirements for thermal insulation of premises are changing, SNiPs are being revised, and customer requirements for energy-saving parameters of construction projects are becoming more stringent. In response, the range of materials is expanding, and popular models are improving their qualities.

One of the discoveries in the field of insulation was reflective thermal insulation. The material is produced in rolls and has universal properties that simultaneously combine the functions of heat, steam, hydro and sound insulation.

Structure and principle of action of penofol

Foiled penofol is a multilayer material from the class of reflective insulation. The main functions of penofol are to protect structures from drafts and wind, moisture and condensation, vapors rising upward from the lower tiers of the structure, as well as from external sounds and noise. Penofol - universal insulating material, since it has the qualities of sound, steam, hydro and thermal insulation. These properties are determined by the structure of the material and its production technology.

The basis of the heat insulator is foamed polyethylene with closed pores, which are filled with air. Polyethylene foam is used various thicknesses, density and structure. On one or both sides (depending on the purpose of the penofol), polyethylene is covered with aluminum foil. The foil undergoes pre-treatment - polished to a maximum reflectance coefficient (97% or more). Aluminum foil is applied using the heat welding method, which ensures reliable adhesion of materials.

The thickness of the base is 2-10 mm, the foil is about 12-30 microns. The total thickness of penofol can reach 40 mm - the use of such an “insulator” is relevant only for regions with harsh climatic conditions.

The principle of operation of penofol is based on the operation of a “Dewar vessel”. James Dewar, back in the early twentieth century, found out that any substance has a certain resistance to heat transfer. Regardless of the value of this indicator, the material can only slow down the heat transfer process, but not stop it completely. At the same time, the substance accumulates heat waves, thereby accumulating energy in itself. After some time, supersaturation occurs and the material begins to generate heat.

During experiments, James Dewar identified a number of substances that tend not to absorb heat energy, but to reflect it. Such materials include: precious metals(gold, platinum, silver) and pure, polished aluminum. Heat rays, reaching the metal surface, are reflected by almost 99%. But, “reflectors” - good guides heat, so they must be used in conjunction with materials capable of absorbing heat.

A regular thermos has a similar operating principle, and the scientist’s research served as the basis for the creation of spacesuits for astronauts and reflective heat-insulating materials.

The use of one- and two-sided reflective insulators reduces the cost of heating a room in winter, and in summer, in hot weather, it slows down the heating of the house.

Advantages and disadvantages of thermal insulation material

The advantages of penofol include the following qualities:

Despite all the diversity and undeniability of its advantages, insulation also has some disadvantages:

1. Excessive softness limits the scope of application of penofol. It is not suitable for insulating walls under plaster or wallpaper.
2. To attach penofol, you may need special glue. Self-adhesive penofol does not have this disadvantage.
3. Despite good characteristics, experts do not recommend using penofol as an independent insulation for the external walls of buildings. It is attached as an additional layer to reflect thermal energy and protect the structure from moisture.

Penofol: technical characteristics

Penofol has the following characteristics:

• operating temperature range from -60°С to +100°С;
• surface thermal reflection coefficient 95-97%;
• the thermal conductivity coefficient depends on operating conditions and ranges from 0.037-0.052 W/m°C;
• water absorption by volume - 0.35-0.7% - this figure indicates reliable protection frame elements and ceilings from moisture penetration;
• with a material thickness of 4 mm specific gravity is 44-74 kg/m3 (the value depends on the type of penofol);
• vapor permeability is not more than 0.001 mg/m h Pa - this value allows us to call penofol a good barrier to evaporation;
• tensile strength during compression 0.035 MPa;
• specific heat capacity 1.95 J/kg°C;
• sound absorption - no less than 32 dB.

Scope of application of penofol

For insulation of summer country houses and thermal insulation of high-rise buildings, universal penofol is suitable. The characteristics of the material have determined its wide popularity and demand, both in the construction of fundamental buildings and in the performance of home renovation work.

Penofol is used for the following purposes:

1. Thermal insulation:

1. Processing of building elements:

Important! Reflective penofol will not only help keep your home as warm as possible in winter. Placed under the roof, it will prevent the scorching summer heat from penetrating into the room

Types of foil penofol

Manufacturers offer several types of penofol for different purposes. In the traditional classification, there are three classes of material:

1. Type A- one-sided penofol (a layer of aluminum film is applied on one side of polyethylene foam). This type is used primarily as an addition to the main thermal insulation - polystyrene foam or styrene.
2. Type B- double-sided foil penofol, universal and can be used as autonomous insulation.
3. Type C- self-adhesive type of insulation. On one side there is a reflective layer of aluminum, and on the other there is polyethylene foam with moisture-resistant adhesive, protected by a sticker. Self-adhesive penofol is convenient for finishing inconvenient areas of the structure, so it is not required for work additional tools installation

In addition to standard types of penofol, technologists have developed a number of modifications that have found their niche in the construction market:

• type ALP- laminated penofol, one of the foil sides of the insulation is covered with polyethylene film; ALP class penofol is used for insulation of agricultural structures that are operated in a slightly aggressive environment;
• M types And R- insulation with one-sided foil, has a relief surface;
• penofol AIR designed for arranging air exhaust structures;
• penofol Super NET(translated from English as “network”) - the main task is heat and vapor barrier of pipelines, air ducts and heating mains.

Choosing the optimal type of penofol

Main parameters to consider when choosing penofol:

• type of insulation (single- or double-sided);
• manufacturing company (it should be noted that “Penofol” is the name of the brand, not the type of insulation; others construction companies it is manufactured under other commercial names);
• price category;
• material thickness.

1. The cost of penofol is primarily affected by its thickness and the number of aluminum layers. Standard sizes material: 3,4,5,8 and 10 mm. One-sided penofol in sizes 3 and 4 mm, type A, can be purchased for 50 rubles/m2. Penofol 10 mm type B is considered the most durable and expensive, its price ranges from 100-130 rubles/m2.
2. In stock construction stores there is a marking Penofol 2000 - more cheap analogue standard penofol (you can buy the material at a price of 35 rubles/m2). However, experts note that penofol 2000 is inferior in strength to branded insulation.
3. Optimal cost-to-cost ratio performance characteristics demonstrates 5 mm penofol (the price of such insulation is about 70 rubles/m2).
4. For insulation of roofs, basements, saunas, balconies, ceilings and walls will do penofol type A, for arranging wood floors it is better to use class B, and for insulating the car interior and metal structures- penofol type C.

Video: comparative characteristics penofol and its analogues

Features of laying penofol

The maximum effect from penofol insulation will be achieved if certain rules are observed:

Important! When attaching penofol, we must not forget that aluminum foil is an excellent conductor electric current. Therefore, if the insulation is close to electrical wiring, care must be taken to carefully insulate the wires

By choosing foil penofol, the characteristics of which correspond to the operating conditions of the material, you do not need to use additional vapor, heat and waterproofing. In addition, you will be able to save on the purchase of auxiliary and installation equipment.