Thermal insulation properties of penofol. Foiled penofol: description and characteristics. Real thermal insulation characteristics

Thermal insulation properties of penofol. Foiled penofol: description and characteristics. Real thermal insulation characteristics
Thermal insulation properties of penofol. Foiled penofol: description and characteristics. Real thermal insulation characteristics
05.03.2020

If you closely follow the market for building materials, in particular, thermal insulation, and read various reviews, you could not help but notice the emergence of a new thermal protection product with high technological qualities, penofol. This material can be classified as one of the types of reflective insulation; it consists of several layers - a base and a reflective foil.

The basis of penofol, which actually gave it its name, is polyethylene foam, which has different structures and density indicators. The foil is applied to the base by heat welding.

The penofol base has a thickness of 0.2 to 1 cm, the thickness of the foil is 20 microns, the reflection coefficient is 97%. For use in harsh climates, manufacturers produce special type penofol with a main field thickness of up to 40 mm.

If in the construction industry the material penofol appeared relatively recently, this does not mean that its high-tech qualities were not known. For interest, I can provide information that the first spacesuits for NASA astronauts were made using penofol.

What can the effect of this be compared to? With a vacuum cleaner! If you have used penofol to insulate a house or apartment, rest assured: you will always be warm in winter and cool in summer. The fact is that penofol does not retain the heat emanating from the room, but reflects it.

This modern technological material creates a barrier to direct heat transfer due to foamed polyethylene, which contains a large number of pores filled with air or carbon dioxide.

The use of penofol is possible both independently and also in combination with others. It is especially convenient when you, wanting to insulate some surface, do not want to lose the size of the usable area of ​​your room.

Foiled penofol: specifications material

— heat transfer resistance for double-sided foam foam with a thickness of 4-5 mm is 1.2-1.23 m2xC/W
— vapor permeability is about 0.001 mh/mhch Pa

Foiled penofol It is used both as the main insulation and as a layer of a thermal insulation system.

The photo below shows an example of foil foam foam 10 mm thick.

Foiled penofol


Foiled penofol and its use

It can be used for:

- insulation of walls inside and outside the premises, attics and basements
— water and vapor barrier of saunas and baths
- roof insulation and
— insulation of water pipes
— heat reflection of heating batteries
- sound insulation and insulation of ventilation and sewer systems
— insulation and sound insulation of cars
— arrangement of residential and commercial trailers
— insulation of refrigeration chambers

Foiled foam foam has its advantages and disadvantages, which will have to be taken into account when choosing thermal insulation. I’ll immediately note that there are many more advantages from using penofol and I’ll start with a fairly moderate price, in comparison with other materials.

What other benefits does the consumer receive:

- high environmental friendliness
- the material is very thin compared to others
- low vapor permeability
— good sound insulation
- ease of installation
— high fire safety
- ease of transportation
— the material is difficult to reach for rodents

To the main disadvantages I'll take:

- high flexibility at the slightest pressure due to the softness of the material

— some inconveniences during strengthening: needed special compounds glue, etc.

- if you need to insulate the walls outside your home, foil penofol is only suitable as additional layer thermal insulation, to reflect thermal energy and protect against moisture.

We test penofol for strength - watch the video:

So, we decided that we need exactly this type of thermal insulation.

What types of penofol are presented on the market and features of their use

1. Type A— in this type of penofol, the aluminum layer is applied only on the outside.
It is used more often with polystyrene foam and styrodur.

2. Type B- coating on both sides.
Suitable for independent use.

3. Type C— self-adhesive penofol.
Its outer side is covered with a layer of aluminum foil, and the inner side is covered with polyethylene foam with contact adhesive.

4. Type ALP.
Glued on top of the aluminum layer polyethylene film. This type of penofol is called laminated. Effectively used for the needs of rural areas.

5. Type R and M— one-sided foil embossed penofol.

6. Super NET, which means "network".
Used to isolate networks.

7. Penofol AIR for air ducts.

If you see penofol brand on the store counter Penofol-2000, know that this insulation is the most inexpensive view penofol, i.e. worse in all technical characteristics and, above all, in strength.

Basic methods of installing foil foam foam

— the reflective layer of material is always laid towards the source of heat transfer
- it is necessary to leave an air space of 10-20 mm on both sides of the insulation
— for 100% waterproofing and tightness, all joints are taped with foil tape
- most importantly: remember that foil is very good guide electric current, carefully check the insulation of the electrical wiring

As mentioned above, one of the remarkable qualities of penofol is its ease of installation. Therefore, even without any special knowledge, you can use it yourself when insulating your house with your own hands.

Insulation of walls with penofol from the inside

For fastening you will need a stapler or self-tapping screws. Indoors, as a rule, penofol with a thickness of 4-5 mm is used. If you have ordinary apartment or home, take one-sided material. If the walls get very cold, you will have to additionally insulate them with cotton wool or.

Insulation of walls with penofol from the inside


Procedure:

- roll out the foam foam roll and cut a strip from it, the length of which will be equal to the length of the wall

- using a stapler, nail it to the wall, starting from the ceiling

- if the wall is wooden, take a screwdriver; if it is concrete, put it on glue or nail it with staples

- cover the entire wall with penofol so that there are no overlaps

- cover the board with aluminum adhesive tape

- nail a frame made of river or a layer of plywood 2 cm thick onto the penofol

- place plasterboard or chipboard on top of the sheathing

In order to insulate the ceiling using penofol, cut it and attach it along the wall, starting from the middle. When you reach one corner, nail the side that is closest to the wall. Next, move from the middle in the opposite direction and attach the strip further.

Then move perpendicular to the material sheet towards the corners, all the while smoothing the penofol across the ceiling.

I would like to remind you that penofol is a very unpretentious material to use. When installing it, you don’t have to treat the surface with anything or even pre-prepare it for work.

It should be taken into account that steam entering building structures can lead to the appearance of mold and mildew. But when using penofol indoors, your walls will not accumulate moisture.

Choose penofol types A, B, C for installation inside the house.

Now let's try them insulate the walls of the room from the outside.

By the way, many professionals claim that this insulation method is much more effective than internal insulation, especially if you have wooden house.

For insulation work on the outside of the house, use perforated penofol; it will protect the walls from precipitation and wind, and will also preserve the integrity of the area of ​​your home without reducing it.

Insulation of external walls with penofol


The insulation is installed between the wall and the cladding of the house. Better work to insulate the walls from the outside in the summer, because there are no sharp temperature fluctuations and the walls are already sufficiently dry.

Procedure for insulating a house with penofol from the outside

- remove all coatings from the walls and carry out an antiseptic treatment; be especially careful and meticulous when treating corners and the bottom of the walls, because it is these areas that are prone to freezing and putrefactive processes

- build a frame from bars and attach it with self-tapping screws

- lay penofol, not forgetting to leave a gap for air

- seal all joints with foil tape

- mount the outer frame and begin cladding the room

So, today we have studied in some detail the properties of penofol, one of the most popular modern heat insulators. If you want to protect your home not only from cold and moisture, but also from noise, if you are interested in maintaining maximum usable area premises and still be in financial gain, give your preference to this magnificent material.

Compare penofol with other analogues, watch the video

What is foil penofol, what are its technical characteristics, and why did this insulation get such a name? There are many questions asked regarding penofol. Therefore, in this article I would like to understand this thermal insulation material, determine its application and especially focus on its installation.

So, penofol is an insulation made of polyethylene foam, which is covered with foil on one or both sides. The thickness of the foil layer is 12-30 microns. But the most important thing is that the metal from which the foil is made has quite stringent requirements. It should contain 99.4% pure aluminum. Why is this so important? Remember what processes occur in a thermos, why the temperature stays in it for so long.

It's all about the metals that cover the surfaces of the thermos flask, polished to a mirror shine. They reflect infrared thermal energy and do not allow it to leave the internal volume. True, these qualities are possessed only by precious metals(silver, gold and bronze), as well as aluminum (one of the cheapest metals today). This is what is used in modern production foil.

It should be noted that metals have high thermal conductivity. Therefore, to prevent heat from penetrating through them and escaping, insulation is added to the foil (metal). In the case of penofol, it is foamed polyethylene. By the way, the name “Penofol” itself is not the name of the insulation, it is the name of the brand.

Important. When installing penofol, it is necessary that its foil side faces the inside of the room. If this concerns roof insulation, then use foil inside the attic or attic.

Penofol parameters

Currently, a large number of products are produced under the Penofol brand. different types insulation materials, which are divided into classes.

As for the position “technical characteristics”, it should be noted that the qualities and properties of penofol are based on foamed polyethylene. Here are its technical characteristics:

  • thermal conductivity – 0.044-0.051 W/m K;
  • density 25-50 kg/m³;
  • thermal reflection coefficient – ​​97%;
  • vapor permeability – 0.001 mg/m h Pa;
  • ultimate compressive strength – 0.035 MPa;
  • can be operated at temperatures from minus 40C to plus 100C;
  • has low water absorption on average 0.6;
  • does not interact with any chemical elements, nor with biological ones.

Penofol installation methods

How you can install class “C” penofol has already been described above. What about other species?

Basically, some special conditions no installation. Penofol can be insulated various designs houses, namely: walls, floors, ceilings, roofing, foundations and so on. Essentially, it is a universal heat insulator. The only point you need to pay attention to is how to attach the penofol.

If it comes to horizontal surfaces on which the material is laid and fastened from above, then it is simply laid out, for example, on the floors, overlapping with the strips, and secured to the walls. That is, strips of penofol are spread on the floor base, extending onto the walls to a height of up to 15 cm. These edges are secured with self-adhesive aluminum tape. The same tape must be glued along the joints of the strips, thereby creating a tightness of the heat-insulating structure.

As for roof insulation with penofol, it can be attached to the rafters using nails with a wide head, self-tapping screws or metal staples. Last option simple, fast and convenient.

To insulate with penofol, it is necessary to consider what class of insulation can be used and fixed in one place or another. That is, the application is determined.

  • If floors or walls are insulated, then types “A”, “B”, and “C” are best suited.
  • If penofol is placed and secured under heating system"warm floor" then best option– type “A”.
  • Penofol class "B" is best used for insulating the floors of the first floor apartment building, under which there is an unheated damp basement.
  • If it will be laid on top of a warm floor ceramic tile, then it is best to use penofol brand “ALP” for insulation.

Advice. Installation of insulation “A” under heated floors is carried out so that the foil side of the material is directed down to the floor. If you turn the heat insulator over, you will have to cover it on top with a plastic film no less than 0.2 mm thick.

Installation example

Cement mortar has a detrimental effect on aluminum foil. If they come into contact during installation, the foil will not last long. Therefore, when using penofol under a screed, you need to take into account some of the nuances of the process.

So, the installation diagram:

  1. On the prepared surface floor base strips of foil material are laid over the walls.
  2. The edges of the penofol must be glued (secured) with self-adhesive aluminum tape. The same applies to strip joints.
  3. Perpendicular to the installation of insulation, a polyethylene film is installed with the same approach to the walls and secured with construction tape.
  4. The heated floor is being installed and connected.
  5. The screed is poured. If the renovation plan involves finishing the floor with tiles, then you can do without a screed. That is, the tiles are immediately laid on warm floors, and they must be secured, as usual, with an adhesive composition for ceramic tiles.

The nuance of installing penofol in in this case is that the insulator itself must be protected with plastic film. When it comes to insulating walls or ceilings with penofol, the best option is not to glue it, but to lay it under or on the sheathing.

Let's summarize all of the above. Let's start with the fact that the characteristics of penofol with its fine structure are quite high. So this is one of the signs highest quality. Plus the opportunity to carry out the process of insulation with penofol yourself. But the most important thing is to correctly approach such an issue as precise application.

The name Penofol has become so popular that this foamed polyethylene with foil is sometimes used where it is not necessary, to the detriment of the result with monetary losses. The frenzied popularity is facilitated by sellers who, for the sake of sales, attribute miraculous properties to foamed polyethylene. Let's look at how Penofol is used correctly and why owners sometimes experience losses with this material...

What is Penofol?

Foamed polyethylene with foil is a soft and elastic rolled material, usually from 3.5 to 10 mm thick, for use as a substrate, vapor barrier, wind barrier, insulation layer.

According to the manufacturer, the thermal conductivity coefficient of uncompressed material is in the range of 0.037 - 0.05 W/m °C. For comparison, foam has 0.035 - 0.04 W/m °C - the material is a little warmer...

The pasted layer of aluminum foil reflects infrared radiation, preventing him from escaping from the heated house to the cold street. And also impermeable to water vapor.

Available in thicknesses of 3 - 10 mm, most often in rolls up to 36 meters long, with a width of 1200 mm.

The material is very light and easy to process, cut with scissors, attached with glue, or pressed with screws or lathing. Convenience and ease of use, as well as low price, contribute to popularity and... misuse.

Types of Penofol

There are:


Thermal insulation qualities of Penofol

It should be noted that when compressed to 2–3 times the original thickness, air is partially displaced from the material, and the thermal conductivity coefficient increases significantly. At the same time, reducing the thickness of the layer leads to a proportional decrease in heat transfer resistance. This means, at least, that Penofol, as insulation, should not be used in a compressed state.

On the manufacturer's website you can find the following values:

  • heat transfer resistance R of PENOFOL® insulation in a structure with a closed air gap is 1.175 – 1.362 m2C/W.

Apparently, such a high value for a thin layer of insulation was obtained by adding up the heat transfer resistance of directly foamed polyethylene with a thickness of 5 - 10 mm - only 0.15 - 0.3 m2C / W, and also by adding here the heat saving from foil (a barrier for radiant heat), which completely depends on the radiation power from the inside, the temperature in the room, the presence of heating sources, the degree of absorption of radiation by structures, and also, apparently, adding the resistance of the “closed air gap” of the structure, which can actually reach 1.0 m2C/W, for example, in a double-glazed window.

However, the obvious fact is that Penofol really does insulate, all that remains is to apply it correctly.

Basic rules for using Penofol


Where and how is Penofol mainly used in practice?


Experts warn. Large-scale use of shielding with conductive foil can disrupt the natural magnetic background, increase (decrease) electromagnetic intensity, disrupt the operation of transmitting and receiving devices, which cannot be called useful and correct...

Examples of incorrect and dangerous use of Penofol

  • Laying Penfol under a cement (reinforced concrete) screed. The foil is destroyed by the alkaline aggression of concrete, the insulation layer is compressed excessively. There is no warming effect.
  • The use of Penofol as the main insulation layer in structures that must be insulated in accordance with standards - in floors, in roofs, in walls. At the same time, users are usually guided by sellers’ assurances that the material replaces “5 centimeters of polystyrene foam” or “6 centimeters mineral wool" As a result, without a main insulating layer (in most cases, it is economically optimal from 10 cm effective insulation...), the structures remain cold.
  • Applying from the side of the living space directly to Penofol, without leaving air gap, finishing panels, wood finishing, structures made of wood, which entails dampening of the finish, the development of mold, and rotting of the wood due to condensation accumulated on the vapor barrier insulation. After a year of such use, according to the owners, Penofol is “black with mold.”
  • Laying inside panel structures along the foil side of the electrical wiring.
  • Joining Penofol sheets leaving gaps, which in addition to overall decrease insulation, in some structures it leaves greater air permeability (drafts), which completely eliminates the presence of an insulating layer.

In the process of arranging a house, an important part is its insulation, because the use of insulation is to ensure comfort. Insulation can keep a room warm while keeping cold outside air out—conditions that can reduce heating costs. A well-known insulation material is Penofol - it is often used on balconies and open walls of a house, because its reflective properties are highly effective. In combination with high-quality floor insulation, this material can create comfortable conditions for quiet use of balconies and other cold rooms in winter.

Unique characteristics of Penofol

Penofol is an insulation material defined as a heat-noise-moisture-insulating material. Made from environmentally friendly substances, and has a small thickness and light weight. In industrial and civil engineering it is applied for:

  • basement insulation;
  • wall insulation;
  • attic insulation;
  • ceiling insulation;
  • roof insulation;
  • floor insulation;
  • hydrothermal insulation of pipes;
  • thermal insulation of air conditioner;
  • hydrothermal insulation of external walls;
  • strengthening waterproofing and massive insulation;
  • dust protection;
  • repairs ceiling covering;
  • strengthening walls;
  • door insulation;
  • insulation of water heating elements.

In the automotive industry, Penofol is used as a material for sound insulation and insulation of vehicle interiors.

Material classification

Issued following types Foiled Penofol insulation:

  • Type A - material based on polyethylene foam with foil on one side;
  • Type B - material based on polyethylene foam with foil on both sides;
  • Type C (self-adhesive) - a material based on polyethylene foam with foil on one side. It refers to self-adhesive insulation, due to the fact that a layer of glue is applied to the other side, which is protected by an adhesive coating.

There are also varieties of Penofol. Depending on the additional coating, they are divided into: A, B, C-LL - with lamination with polyethylene terephthalate film; A, B, C-LP - with lamination with polyethylene film; A, B, S-M - embossed with foil on one side;

A, B, C-R – embossed with foil on one side;

Perforated

Recently, the production of Penofol with perforation has been launched, i.e. the ability to remove moisture from the material. This type of insulation is used mainly on the external facades of a building. Walls where Penofol was used as insulation acquire the ability to “breathe”.

Penofol is made from polyethylene foam onto which aluminum foil is fixed by pressing on one or both sides. It is acceptable to use polyethylene foam of several brands, and not just PPE, in the absence of deterioration in the quality and properties of the insulation. The adhesive layer must be protected by an adhesive material.

Insulation thickness and length

The cost of insulation directly depends on its thickness. The larger it is, the higher the price. Also, the cost increases depending on the number of foil sides and coating layers.

Manufactured in thicknesses: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm (up to 40mm thick on request in rare cases). Penofol 1 centimeter thick has the highest noise protection and retains heat best. The material with a thickness of 5 mm remains in first place in popularity, due to optimal ratio quality and price. Produced in rolls. Standard roll length (depending on thickness): 5m, 10m, 15m, 30m, 50m.

Insulation density

The specific gravity of the insulation depends on the thickness and is in the range of 38 - 84 kg/m3. Considering that the insulation has a low density, it is difficult to use it under further loads. When applying a small load, it will be pressed inward.

The ability of insulation to absorb water

The ability of any product to absorb and retain moisture is called water absorption. When this value is high, the thermal conductivity increases, specific gravity and the strength of the material is significantly reduced.

Penofol's water absorption depends on its type: Type C - 3.5%; Type B - 0.6%; Type A - 0.7%.

Vapor permeability is understood as the ability to transmit and retain vapors, therefore, with a large coefficient of this value, the thermal conductivity indicator is also higher. When using Penofol there is no need to lay additional film.

For comparison, the vapor permeability of different building materials:

  • plywood - 0.02 mg/(m*h*Pa),
  • polystyrene foam - 0.023 mg/(m*h*Pa),
  • concrete - 0.03 mg/(m*h*Pa),
  • Particleboard - 0.12 mg/(m*h*Pa).
  • Penofol has a vapor permeability of less than 0.001 mg/(m*h*Pa).

Penofol's ability to conduct heat

The thickness of the aluminum foil used to cover the layer of foamed polyethylene is from 12 to 30 microns. Percentage pure substance more than 99%. During Dewar's research, it was found that a number of materials are capable of almost completely reflecting thermal energy, however, due to this, the material can heat up and it becomes necessary to supplement the structure with a thermal barrier. In Penofol, the function of a barrier is performed by foamed polyethylene.

The level of thermal reflection of polished foil is at least 97%.

Important! Resistance depends on the thickness and type of insulation. For type B with double foil and a thickness of 4 mm, this figure is 1.20 m2*C/W; 5 mm thick - 1.23 m2*S/W, 10 mm thick - 1.355 m2*S/W. For comparison, the mineral wool layer for such resistance should be more than 85mm. The data calculation was adopted in accordance with SNiP.

A unique property of Penofol is its ability to provide good sound insulation with a small insulation thickness. This property is actively used in the automotive industry and, if desired, can reduce noise from extraneous factors at home.

Considering that this material can be used both indoors and outdoors, and with a thickness of only 4-5 mm it can significantly reduce the noise of the apartment, this is undoubtedly useful quality insulation.

Penofol has sound absorption above 32 dB.

Explosiveness and toxicity

Temperature limits for use are from +100 to -60 degrees Celsius. At such temperatures, Penofol is an absolutely environmentally friendly material and completely non-toxic. When using it indoors or outdoors, no precautions are required.

The sticky adhesive used in the manufacture of Type C insulation is non-toxic. The adhesive used is based on a water-acrylic dispersion. The emulsion used is non-explosive and non-toxic.

The material applied to the adhesive base to protect it is a lavsan siliconized film. Non-toxic.

Fire safety of penofol

This material belongs to substances that are difficult to burn. Penofol has a corresponding certificate stating that it is not fire hazardous.

When burning Penofol:

  • melts upon contact with open flame;
  • does not flare up;
  • does not burn.

Important! In terms of flammability, Penofol belongs to group G1 (the material is slightly flammable, does not support combustion, does not spread flame). In terms of flammability, it belongs to group B1 (non-flammable, able to withstand a heat flow of more than 500ºC).

According to its ability to generate smoke, it belongs to group D2 (moderate ability to generate smoke).

Lifetime

Since in the manufacture of Penofol polyethylene foam is used, which is durable material, and whose service life is about 200 years, the insulator is durable. However, it is worth keeping in mind that the aluminum used for coating can oxidize over time. In addition, due to the materials used in production, it is possible to reduce the impact electromagnetic radiation up to 10 times.

Methods of using Penofol

Use on the floor If it is necessary to insulate the floor, Penofol is installed on top of the logs, with the foil side facing up, without tearing. In general, type A with a thickness of 4 or 3 mm is sufficient. It is necessary to provide an air gap of 20 mm. Apply sealing insulation along the entire joint using aluminum adhesive tape.

When laying Penofol on concrete base It should be taken into account that concrete is an aggressive environment, therefore, using Penofol, the floor is covered with plastic film or coated insulation is used protective film. Laying is done with the foil side up, butt joint. Sealing is done using mounting tape. A heating system is laid on top and filled with screed. Decorative decorative material is placed on top flooring: laminate, parquet, tiles.

Preservation of heat from heating devices To increase the temperature in the room, it is reasonable to install Penofol type C or A on the wall behind the radiator. In practice, the effectiveness of increasing heat transfer from the battery by 20% has been proven. Using insulation 5-3 mm thick, you can increase the temperature in the room by 4 degrees.

Insulation of walls. If in winter time the room is damp and the temperature drops below 20C, insulating the walls is necessary. It is possible to insulate the outside and inside of the house. The efficiency of insulation indoors is much higher. The use of insulation type A, B with a thickness of 5 mm is justified.

Type C application

In places where it is difficult to use Penofol type A and B, type C is used. It is actively used in the insulation of water heating boilers, sound insulation of air ducts, and thermal insulation of pipelines, which also eliminates the appearance of condensation.

Glue used for Penofol

Using glue to attach insulation has several advantages:

  • low time and cost;
  • does not require special skills;
  • technologically simple;
  • no need to use a professional tool.

But, load bearing capacity fastening with glue is not high and depends on the weight of the material. The advantage of Penofol is its weight. It's light. Bonding depends on adhesive properties adhesive base, i.e. ability to penetrate into the pores of the surface for gluing.

An adhesive that contains an organic-based solvent has the most high efficiency. Also important indicator for fastening strength is resistance to water.

The glue used in residential premises must be non-toxic. The safety of the adhesive can be guaranteed if it has an EMICODE certificate. To increase the effectiveness of the glue, you should clean the surface of dirt, dust, coating and eliminate all irregularities and cracks. When using an adhesive, you must strictly follow the instructions. Then, Penofol will last a long time and stick well.

Using the adhesive fastening method is inferior to other more common and reliable installation options:

  • fastening with lags;
  • fastening with staples;
  • fastening with slats;
  • fastening with screws, etc.

It is also important to remember that, regardless of the method of fastening, it is necessary to properly insulate all joints of the Penofol structure, and it is worth giving preference to the “joint to joint” installation method over the “overlapping” method. It is best to use special metallized construction tape as insulation. When insulating a bathhouse, sauna and other rooms with high humidity It is better to give preference to other methods of fastening.

Analogues of Penofol

It is important to understand that Penofol is not the name of the insulation, but a specific brand. Therefore, there are a number of analog materials with similar properties.

Among the analogues are the following:

  • AlufomInsulation made of foamed polyethylene covered with metallized film or polished aluminum foil. The areas of application are identical to Penofol.
  • Izofol An insulation material consisting of one or two layers of polished aluminum foil or aluminum spraying onto a Mylar film, covering polyethylene foam. Available in roll form. Used as heat-sound vapor insulation. It is used in the construction of industrial and civil buildings.
  • Stizol: Stizol F, Stizol F2, Stizol LM; Foamed polyethylene coated with a laminated metallized film (Stizol LM) or one (Stizol F) or two (Stizol F2) layers of polished aluminum foil. It is used as insulation for walls, floors, roofs, and other structures.
  • EnergoflexInsulation made of foamed polymer or polyethylene. Available in the form of tubes, plates, rolls. Widely used in heating, air conditioning and enclosing structures. The reflectivity of the rolls is 90%.

Source: http://gtzi.ru/teploizolyaciya/materialy/unikalnye-svojstva-penofola.html

Penofol and Penoplex - thermal insulation for a wooden house, cost and availability of certificates

Penofol is a heat-insulating material consisting of several layers. The main layer is foamed polyethylene with closed air pores. The reflective layer is foil-coated, applied on one or both sides and made of pure aluminum with a thickness of 15-30 microns.

According to its properties, Penofol is classified as reflective insulation, since it works not to absorb, but to reflect the heat flow in the room. And with a small thickness the material has excellent characteristics to prevent heat loss and, which is especially important when insulating a balcony, has 100 percent vapor barrier.

Based on the results of the studies, it was found that thermal efficiency reflective thermal insulation Penofol is 4-8 times higher than the results of polystyrene foam, mineral wool slabs 4-12 times, foam concrete 12-25 times. In addition, it does not allow or absorb moisture.

The foil surface is made wrinkled for a reason; due to this, the material can be pasted over curved surfaces in a house of any radius without tearing the layer of aluminum foil.

Penofol is available in several types

Basic:

  • Type A - foil on one side
  • Type B - on both sides
  • And the most convenient to use, type C – self-adhesive foil penofol.

Material thickness from 3 to 10mm.

Typically, the retail price of 1 sq.m of type C is approximately 2 times more expensive than type A.

In addition, in the main types there are:

Penofol, Penofol 2000, Penofol type A-LP and SUPER NET.

The most common is Penofol 2000 (A,B,C), the difference from the usual one is in the main layer. In 2000 he of blue color and is made from closed cell polyethylene foam.

Regular Penofol (A,B,C) has a base white based on foamed cross-linked polyethylene. In this regard, there is a difference in characteristics.

Penofol A-LP has an additional protective polyethylene layer. First of all, this is necessary to protect the foil layer from damage and exposure to DSP during installation in a heated floor system.

The SUPER NET type uses a core layer based on mesh polyethylene.

Foil Penofol. How to buy a real one

The unique qualities of the material ensured its popularity among buyers and, as always happens, the market was subsequently flooded with a large number of “similar” materials and outright fakes. To protect yourself from counterfeiting when purchasing, pay attention to the following features:

Branded full color insert with detailed information.

Each roll is packed in polyethylene with blue and red inscription: Penofol Lit

End label indicating type and dimensions

Base color is blue. Pure Aluminum Foil

Protective self-destructive stamp with the logo of the manufacturer.

Penofol is produced by only one plant in Yaroslavl region, Pereslavl-Zalessky.

Foiled penofol instructions for use

Correct installation must take into account the following:

  • The thermal efficiency of reflective thermal insulation Penofol is determined by the design solutions of its installation
  • Constructive decisions should include one or two closed air layers. When making an air layer of 10-20 mm between Penofol aluminum foil and any protective area (wall, drywall, siding, corrugated sheet, plastic film, etc.) thermal resistance air layer is 0.5-0.6 (m2°C)/W
  • installation of reflective thermal insulation Penofol type B (double-sided foil) with two air layers increases the thermal resistance of the structure by 1.1-1.2 (m2°C)/W.

The bottom line is that a gap is always required from the foil layer to the enclosing structure.

If type A is used, the material can be fixed to the wall using double-sided tape or wooden slats, onto which plasterboard cladding is subsequently installed.

Type B is installed with the obligatory implementation of two air gaps. Between the wall and foil layer 1, between foil layer 2 and the cladding.

When insulating the balcony with my own hands, I used Penofol type C. Look for all the features of installation and insulation in the next article on Remontofil.ru!

Source: http://remontofil.ru/penofol.html

Penofol is a new generation of insulation, high thermal insulation characteristics with a minimum insulator thickness

Energy saving issues are becoming more and more relevant every year. To reduce the cost of heating bills, you first need to worry about insulating the entire house or its individual structures.

In addition to preventing heat loss, the building requires reliable protection from a humid environment and negative influence gusty wind. To perform all these tasks, in most cases, materials are used that are capable of comprehensively protecting the home from all of the listed factors.

Penofol insulation, which is based on polyethylene foam, due to its multi-level structure adequately copes with the penetration of dampness and increased wind load on load-bearing structure, and most importantly, prevents heat loss by keeping it inside the building.

Manufacturers use foamed polyethylene as the basis for insulation. This polymer is characterized by a cross-linked layer structure, which gives the material increased resistance to various aggressive influences. environment. Such insulation is not subject to rotting and is inert when interacting with many chemicals and does not release toxic compounds over time.

During the process of polymerization and cross-linking of ethylene, the reaction gradually fades, so air cavities in the structure of the insulation are formed at the very beginning, and this is facilitated by special additives that are mixed with the feedstock. The result of this technology is the formation of pores, the diameter of which varies from a couple of microns to one millimeter. The air reserve prevents the passage of heat, noise, moisture and wind through the body of the insulation.

Since Penofol belongs to the category of insulating and insulating materials, requirements for it technical parameters are similar to those that apply to other samples of the corresponding class. Considering structural features polyethylene materials, its thickness is no more than 10 mm. If you enlarge the layers, you can see how macromolecular cross-links are destroyed and the body of the material delaminates.

To basic technological parameters isolation includes the following parameters:

  • thermal conductivity indicators, which vary from 0.037 to 0.042 W/mK in a completely dry state;
  • a fairly low vapor permeability level of 0.001 mg/m*h*Pa;
  • heat reflection by the foil surface starts from 90%;
  • high elasticity index up to 0.2 at a load of 5 kPa;
  • moisture absorption does not exceed 0.7% of the total volume of the material.

Positive differences

The main advantage of the material is the minimal increase in thermal conductivity when moisture enters. Since the structure of the air pores of Penofol is heterogeneous, at high levels of environmental humidity the material is able to accumulate up to 10% moisture from the initial mass, while its thermal conductivity increases slightly (up to 0.05 - 0.052 W/mK).

Penofol perfectly absorbs noise and sounds, which allows it to be used to achieve an additional soundproofing effect in rooms, especially if we're talking about about attics. As you know, in rooms under the roof you can clearly hear sounds from falling raindrops, wind and even leaves that fall from trees in autumn. Touching roofing material, all these phenomena create annoying noise, which significantly disrupts the comfort of residents, and Penofol completely solves this problem.

Popular types of insulation

The popular multilayer insulation, which is sold under the Penofol brand, has several varieties. Most often in modern construction market You can find three main product samples, which will be discussed further.

Type “A” refers to two-layer composite material, on one side of which a foil with a thickness of about 14 microns is applied. Type “B” is characterized by the application of reflective foil on both sides. Type "C" has the same structure as two previous samples, with the only difference being that an adhesive component is additionally applied to the foamed polyethylene. Thanks to this feature, the insulation is easily attached to a plane, therefore it is considered the most convenient for installation.

Innovative Products

Given the constant improvement of building materials, this segment has also not been without the introduction of new technologies. The Penofol material has been replenished with “ALP” brand products, which differ from type “A” in that a protective polyethylene film is applied to the foil layer. This insulation is also called laminated. Its subtypes “M” and “R” have a relief structure of layers, and Penofol “Air” with a perforated structure is in most cases used for treating ventilation systems.

It is worth noting that Penofol of any type is rarely used as an independent thermal insulation material. Its small thickness (maximum 10 mm) cannot fully protect the structure from leakage warm air, therefore, such products should be considered as an additional vapor barrier with the function of heat reflection.

Installation conditions

Due to the high elasticity of the insulation, its use is subject to a number of restrictions regarding the installation of the material. Considering the insufficient strength of the polymer layer, Penofol is not recommended to be fixed with nails, since insulating abilities are completely lost at puncture sites and this reduces the overall effectiveness of the product.

For achievement maximum effect it is necessary to fix the insulation with specially designed adhesives without additional processing fasteners. This feature was the reason for the appearance on the construction market of Penofol type “C”, on the surface of which a composite was applied for fixation.

Of all the alternative fastening methods, the most gentle for the insulation structure is considered to be fixation with a construction stapler, punctures from the staples of which do not leave large gaps and practically do not harm the polymer and foil layers.

Penofol, unlike membrane vapor barriers And waterproofing films, does not overlap. Its sheets are joined together, and the resulting seams are blown out polyurethane foam or sealant, and then sealed with waterproofing adhesive tape.

Features of using the material

Typically, insulation with a layer of reflective foil is used to insulate walls, roofing structures, ceilings and screeds inside the building. At external installation the material is ineffective, since its reflective abilities are practically not used.

Walls, ceiling, floor

When treating walls, ceilings and screeds inside the house, Penofol is combined with the main insulation, which shows more effective work. It may be mineral or stone wool, and Penofol performs the function of waterproofing.

Ventilation

If you decide to install foil insulation, it is necessary to install a counter-lattice, with the help of which it is formed ventilation gap(from 20 mm). Since foamed polyethylene has low permeability, it will be necessary to provide space for condensate drainage.

This measure guarantees the protection of walls and material from moisture accumulation and, as a result, damage. A similar gap for ventilation is left between Penofol and decorative finishing, otherwise there is a high risk of encountering mold.

Consolidation

It is best to use at work construction stapler, fixing the staples in increments of 40 - 50 cm. In this case, Penofol should be placed with the shiny side facing the inside of the room. This is how the material will perform the function of waterproofing and additionally prevent heat from escaping.

Exterior works

When performing external insulation of walls, choose perforated insulation, which copes with protection from gusty winds, high humidity, noise and removes steam from its structure. However, it is worth remembering that Penofol alone will not be enough for complete thermal insulation.

Roof insulation

During insulation work in attic room, which serves as a living room exclusively in summer period, Penofol will be an excellent replacement for any other insulation. In this case, its action will be quite sufficient and the installation of additional protective materials will not be required.

In the under-roof space, insulation is laid between the rafters, and it is also used to cover beams to create additional insulation. To ensure proper removal of moisture from the roof, create a ventilation gap of 50 mm. There will be enough space of 20 mm between Penofol and the cladding.

Experts recommend using material with a foamed polyethylene layer of 10 mm. These parameters will be sufficient to retain heat and dampen sounds that arise from external factors when they come into contact with the roof. If the attic will be used as housing all year round, then Penofol can be one of the components of a multilayer structure.