Today, insulating materials, such as foil foam, are very popular. The scope of their use is expanding every day and before repair work, due to the diversity, it is difficult to figure out where quality material and where not.
In the construction market, foil-coated polyethylene foam has appeared quite recently, but its popularity is growing every day. Foam insulation has impressive thermal conductivity and sound insulation. Today it is used often, since the principle of action resembles the effect of a thermos.
In any house where polyethylene foam was used, warmth and comfort will reign both in summer and in winter. The material in question does not act as a heater, but more as a reflector of cold or heat. If we consider its structure, then it consists of several layers, including foamed polyethylene (it contains a large number of air pores). And the foil, located on the sides, is able to effectively reflect heat or cold. Most hermetic pores act as an obstacle during heat transfer.
As for the thickness of the material under consideration, it is different. The connection of foamed polyethylene with foil occurs using a thermal processing method.
Material advantages
The priority of penofol is that specifications This material has a wide range of advantages.
- Versatility. The material is used as insulation or as sound insulation. This makes it possible to avoid the use of a variety of membranes or film materials. Moreover, self-adhesive penofol, without any fear, can be mounted both from the outside and from the inside. He is not afraid of humidity or temperature changes.
- Small thickness. The indicator under consideration is really small compared to those that other heaters have. For this reason, the products are easily mounted inside any premises, given that the usable volume will not be reduced. For example, to protect housing from extraneous sounds, you can use a 10-centimeter layer. Heat loss is also kept to a minimum.
- An impressive selection of products. Today, a wide range of materials is sold. Therefore, there is a choice, taking into account specific technical characteristics.
- High quality. The use of modern technological capabilities during the manufacture of penofol makes it possible to reduce heat loss by up to 3%. It is important to understand that with the use of the considered insulation techniques, heat can be directed back into the space of the room. As for moisture, it is unable to seep through the foam layer.
- Wide thermal mode of use. Foamed polyethylene, which is often foil-coated, can be operated at a wider temperature range (-50 ˚С to +90 ˚С). With the use of such a heater, the room will always be cozy and warm in winter, as well as cool in summer time, because, as mentioned, everything works on the principle of a thermos.
- Ease of installation. Foamed insulation is produced in rolls. It has high rates of plasticity. Therefore, the insulation of any surface, including its complex shape can be done without any problems. It is worth adding that for foamed polyethylene it is not necessary to make a preliminary frame, since the insulation is attached directly to the wall surface. Both pipes and slabs are easily insulated with this material, and it is enough to use simple scissors to cut it.
- Environmental friendliness. Insulation refers to an environmentally friendly material. Therefore, it can be used without any problems for internal insulation of any room, including a bedroom or kitchen.
Cons of the material
Despite the impressive positive qualities, there are certain disadvantages that also need to be considered before repair work.
- The insulation has a soft structure. The base will not be able to hold a layer of plaster. And also it is not recommended to glue wallpaper on it. The material can sag, so it is difficult to finish.
- Difficulties during installation. It is advised to purchase a special adhesive to facilitate installation work, since the foamed insulation is poorly retained. It is not recommended to use nails or screws during fastening work - this violates the quality of future thermal insulation.
- The material is afraid of mechanical influences. Foamed insulation has a soft structure, so it can be easily damaged by mechanical stress. During installation work, it is recommended to observe special care, since in most cases damage occurs at this very moment.
Application area
The material is quite new, but its scope is growing every year. Its technical characteristics proved that the material in question can be used for:
- increase the insulation performance of the chambers of refrigerators or freezers.
- insulation of the attic or basement;
- increasing the insulation of the walls of the room, both inside and outside;
- increase in indicators of waterproofing and vapor barrier in saunas or baths;
- increasing the insulation parameters of roofs and underfloor heating;
- arrangement of residential and commercial space, including trailers;
- isolation of water pipes or similar communications;
- heat reflection of batteries used in heating;
- improvement of sound-proof indicators and insulation of ventilation and sewerage;
- insulation and improve sound insulation in the car.
The use of penofol depends on its brand. Exists different types material. Before buying, it is important to decide what thickness to use.
The cost directly depends on the thickness of the material. The technical characteristic depends on the number of layers and on the foil made from aluminum. There are several layers. Regarding the thickness, it can be different (from 2 to 40 mm).
If we compare the material with 3 mm thickness and 3 cm - in the second case, the cost will be much higher, especially when the foil layer is on different sides.
In most cases, foam insulation is used, the thickness of which is about 5 mm. But the choice of parameters may vary depending on the room and its properties, as well as individual preferences.
Penofol and its conductivity
Penofol insulation refers to a combined type of materials, the main advantage of which is the reflection of thermal energy, as well as its absorption.
Less convection rates are achieved by using polyethylene foam. As for the aluminum foil layer, it is able to reflect about 97% of heat rays. Foamed insulation is the result in the form of complex modern insulation.
If we compare, for example, mineral wool and penofol, 4 mm thick. In this case, the proportionality will be 1:2. That is, the material has indicators twice as high. To achieve the same performance, the mineral wool layer should be about 8 cm.
Safety and material life
Polyethylene foam is a clean material from an environmental point of view. For this reason, it is used as the basis of the insulation in question. As for longevity, there is no exact date, but many claim that it is more than 100 years.
It is worth noting that the material is capable of simultaneously lowering harmful influences electromagnetic radiation. They are reduced by more than half - this is important to consider when choosing.
The construction of any object is impossible without the use of thermal insulation materials. With their help, the cost of heating resources is reduced. One of the popular solutions is foil penofol. It is chosen for its excellent performance. The material installation procedure does not contain complicated moments. Even a beginner can easily cope with this work. Compared to other solutions, it is significantly cheaper. As a result, high-quality and inexpensive insulation of premises is provided.
Penofol - one of the most popular and common types of insulation
Structure Features
Penofol is usually referred to as a group of reflective insulation. It was developed specifically to protect 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, he acquired not only excellent thermal insulation properties, but also protection from water and sound. Its structure has several layers:
This material belongs to the category of reflecting heat due to the foil, which is attached to the polyethylene "foam" - The first is polyethylene foam. It has many closed pores. They are 90% filled with air. This is what prevents heat transfer.
- Aluminum foil is the second layer. It provides effective heat reflection. Penofol can be covered with foil on one or both sides. This moment affects its main technical characteristics, and also determines the features of the application. For reliable connection of the base with the metallized layer, the method of thermal welding 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. The presence of an air cushion, which is covered with a reflective element, ensures the preservation of heat for a long time. The use of penofol in the construction of a house makes it possible to save on heating the home. In the summer, the heating of the object noticeably slows down.
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 virtues. Such an important parameter as the thermal conductivity of this solution is quite comparable with the indicators present in 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 a comprehensive thermal insulation of the 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 performance. Change temperature regime also does not change them. When penofol is used for thermal insulation work, there is no need to create a steam protection. The insulation acts as a good barrier to its penetration.
To solve the problems of effective sound insulation, foil foam is mounted directly on top of 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 exclude the penetration of electromagnetic radiation into the interior.
The main application of this insulation is a roof, walls, a bathhouse, a 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 primarily taken into account by consumers when looking for an effective insulator. Positive characteristics:
Although penofol has many advantages, it is still not without drawbacks. 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 fixing (this minus is absent if the consumer has chosen self-adhesive insulation for work).
Although the foil insulator has good thermal insulation performance, it should not be used as the primary solution for enhancing the performance of exterior 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 the thermal insulation of the foundation, as well as when performing in the house. repair work. This solution is most effective for thermal insulation:
- Residential houses.
- Baths and saunas.
- Objects of administrative and industrial purpose.
It can also be used to improve the performance of structures and 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 winter. In the summer months, penofol provides comfortable living conditions. So that the house is not hot, it is enough just to arrange a layer of this material in the under-roof space of the structure.
Installation nuances
This is a soft material, so you can’t lay it under plaster, you will need another finishing coating, for example, drywall or Wall panels The procedure for laying a heat insulator has certain features. Considering the nuances it is possible to ensure high quality of work and exclude extra costs for heating:
- When laying penofol with a one-sided metallized layer, it should look towards the heat source.
- During installation, it is imperative to arrange an air gap. Its optimal size is 2 cm. It is necessary for effective ventilation.
- During the fixation of the insulation, the resulting joints between the sheets must be eliminated using foil tape.
- The butt-to-butt connection method ensures uniform thermal reflection from the insulator. However, when work is carried out on a loggia, it is quite acceptable to overlap the material with an overlap of up to 10 cm.
- When carrying out the procedure, it must be remembered that one of the layers of this solution - aluminum foil - conducts electricity well. Therefore, if the insulation is located close to the wiring, then you need to think about high-quality insulation of the wires.
When insulating the roof or sloping walls of the attic, the installation of penofol is carried out by attaching rafter boards to the lower planes When choosing penofol, the technical characteristics should be found out first of all. It's to let you pick best option to solve the problem that has arisen. The foil insulator is good decision when it is necessary to perform high-quality thermal insulation of the object. Its advantage is a small thickness, as well as ease of installation process. Even a beginner can handle the installation work. You just need to know the basic nuances in their implementation.
Many consumers who have chosen penofol are also interested in the flammability of the insulation. On this account, you can not worry - it is classified as a group of flammable. When installing it, it is worth using the overlap connection method. To seal the joints, it is best to use aluminum tape.
At right choice insulation, you can refuse to install a waterproofing layer. The result is a good cost savings for the owner of the facility and a significant improvement in the performance of thermal insulation in the room.
If you closely follow the market of building materials, in particular, heat-insulating ones, read various reviews, you could not help but notice the appearance of a new, high-technological means of thermal protection, penofol. This material can be attributed to one of the types of reflective insulation, it consists of several layers - the base and reflective foil.
The basis of penofol, which actually gave it its name, is polyethylene foam, which has a different structure and density indicators. The foil is applied to the base by heat welding.
The foam base has a thickness of 0.2 to 1 cm, a foil thickness of 20 microns, a reflection coefficient of 97%. For use in harsh climates, manufacturers produce a special type of penofol with a main field thickness of up to 40 mm.
If in the field of construction material penofol appeared relatively recently, this does not mean that its high-tech qualities were not known. For interest, I can give a certificate stating that the first spacesuits for NASA astronauts were made using penofol.
To what can this effect be compared? With a vacuum cleaner! If you used penofol to insulate a house or apartment, do not hesitate: in winter you will always be warm and cool in summer. The fact is that penofol does not retain heat emanating from the room, but reflects it.
This modern technological material creates a barrier to direct heat transfer due to polyethylene foam, 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 useful area of \u200b\u200byour room.
Penofol foil: technical characteristics of the material
- heat transfer resistance for double-sided foam foam having a thickness of 4-5 mm is 1.2-1.23 m2xC / W
– vapor permeability is about 0.001 mh/mhh Pa
Penofol foil finds application both as the main heater and as a layer of heat-insulating system.
The photo below shows an example of foil foam foam 10 mm thick.
Penofol foil
Penofol foil and its application
It can be used for:
- insulation of walls inside and outside the premises, attics and basements
– water and vapor barriers for saunas and baths
- roof insulation and
– insulation of water pipes
- heat reflection of heating batteries
- soundproofing and insulation of ventilation and sewer systems
– insulation and soundproofing of cars
- Arrangement of residential and commercial trailers
— isolation of refrigerators
Foil penofol has its advantages and disadvantages, which will have to be taken into account when choosing thermal insulation. I’ll note right away that there are much more advantages from using penofol and I’ll start with a fairly moderate price compared to 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 it:
– high deflection at the slightest pressure due to the softness of the material
- some inconvenience when strengthening: special glue compositions are needed, etc.
- if you need to insulate the walls outside your home, foil penofol is only suitable as an additional layer of thermal insulation to reflect heat energy and protect against moisture.
We check penofol for strength - watch the video:
So, we decided that we need just this type of thermal insulation.
What types of penofol are on the market and the features of their application
1. Type A- in this type of penofol, the aluminum layer is applied only from the outside.
It is used more often with foam and styrodur.
2. Type B- Coated on both sides.
Suitable for independent use.
3. Type C- self-adhesive foam.
Him outer side covered with a layer of aluminum foil, and from the inside - polyethylene foam with contact adhesive on it.
4. ALP type.
A polyethylene film is glued on top of the aluminum layer. This type of penofol is called laminated. Effectively used for the needs of rural areas.
5. Type R and M- one-sided foil embossed foam.
6. Super NET, which means "network".
Used to isolate networks.
7. Penofol AIR for air outlets.
If on the counter of the store you see penofol brand Penofol-2000, be aware that this insulation is the most inexpensive type of penofol, i.e. worse in all technical characteristics and, above all, in strength.
The main methods of mounting foil foam
- the reflective layer of the material is always laid in the direction of the heat transfer source
- 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 glued with foil tape
- most importantly: remember that foil is a very good conductor of electric current, carefully check the insulation of electrical wiring
As mentioned above, one of the remarkable qualities of penofol is ease of installation. Therefore, even without having any special knowledge, you can use it yourself when warming the house with your own hands.
Insulation with penofol walls from the inside
As a fastener, you will need a stapler or self-tapping screws. Indoors, as a rule, penofol 4-5 mm thick is used. If you have ordinary apartment or house, take one-sided material. If the walls are very cold, you will have to additionally insulate them with wool or.
Insulation with penofol walls from the inside
Procedure:
- roll out a 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
- glue the board with aluminum tape
- nail a frame made of river or a layer of plywood 2 cm thick onto the penofol
- place drywall or chipboard on top of the crate
In order to insulate the ceiling with penofol, cut it and attach it along the wall, starting from the middle. When you get to one corner, nail the side closest to the wall. Further from the middle, move in the opposite direction and fasten the strip further.
Then move perpendicular to the web of material to the corners, while smoothing the penofol along the ceiling all the time.
I want to remind you that penofol is a very unpretentious material to use. During its installation, you can do nothing to process the surface and even not pre-prepare it for work.
It should be noted that steam entering the building structure can lead to the appearance of mold and fungus. But when using penofol indoors, your walls will not accumulate moisture.
Choose foam 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 method of insulation is much more effective than internal insulation especially if you have a wooden house.
For work on warming the house from the outside, use perforated penofol, it will protect the walls from precipitation and wind, and also keep the area of \u200b\u200byour home intact without reducing it.
Wall insulation with penofol outside
Insulation is mounted between the wall and the cladding of the house. Better work for wall insulation from the outside to carry out in the summer, because. there are no sharp fluctuations in temperature and the walls are already dry enough.
The procedure for warming the house with penofol from the outside
- remove all coatings from the walls and perform antiseptic treatment, be especially careful and meticulous when processing corners and the bottom of the walls, because. it is these areas that are prone to freezing and putrefactive processes
- build a frame from the bars and attach it with self-tapping screws
- lay penofol, not forgetting to leave a gap for air
- Seal all seams with foil tape
- mount the outer frame and begin to clad the room
So, today we have studied in sufficient 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 preserving the maximum useful area of the room and still be in financial gain, give your preference to this magnificent material.
We compare penofol with other analogues, watch the video
The modern market of insulating materials is quite dynamic. The requirements for thermal insulation of premises are changing, SNiPs are being revised, customer requirements for energy-saving parameters of construction projects are being tightened. 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.
The structure and principle of action of penofol
Penofol foil - a multilayer material from the class of reflective insulation. The main functions of penofol are to protect structures from drafts and wind, moisture and condensates, vapors rising up from the lower tiers of the structure, as well as from external sounds and noises. Penofol is a 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 the technology of its production.
The basis of the heat insulator is polyethylene foam with closed pores, which are filled with air. Polyethylene foam is used in various thicknesses, densities and structures. On one or both sides (depending on the purpose of the penofol), the polyethylene is covered with aluminum foil. The foil is pre-treated - polished to the maximum reflection coefficient (97% or more). Aluminum foil is applied by thermal welding, which ensures reliable adhesion of materials.
The base thickness is 2-10 mm, the foil thickness 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 work of the "Dewar vessel". James Dewar, at the beginning of the 20th 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 process of heat transfer, but not stop it completely. At the same time, the substance accumulates heat waves, thereby accumulating energy in itself. After a while, supersaturation occurs, and the material begins to generate heat.
During the experiments, James Dewar identified a number of substances that tend not to absorb heat energy, but to reflect it. These materials include: precious metals (gold, platinum, silver) and clean, polished aluminum. The rays of heat, reaching the surface of the metal, are reflected by almost 99%. But, "reflectors" are good conductors of heat, so they must be used in tandem with materials capable of absorbing heat.
A conventional thermos has a similar principle of operation, and the research of the scientist was 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 the premises in winter, and in summer, in hot weather, slows down the heating of the house.
Advantages and disadvantages of thermal insulation material
The advantages of penofol include the following qualities:
With all the variety and undeniable advantages, the insulation also has some disadvantages:
- Excessive softness limits the scope of penofol. It is not suitable for wall insulation under plaster or wallpaper.
- To fix the penofol, you may need special glue. Self-adhesive penofol is deprived of this minus.
- In spite of good performance, experts do not recommend using penofol as an independent insulation of the external walls of buildings. It is attached as an additional layer to reflect thermal energy and protect the structure from moisture.
Penofol: specifications
Penofol has the following characteristics:
- spread of operating temperatures ranging from -60°С to +100°С;
- coefficient of thermal reflection of the surface 95-97%;
- the thermal conductivity coefficient depends on the operating conditions and ranges from 0.037-0.052 W / m ° C;
- water absorption by volume - 0.35-0.7% - this indicator indicates reliable protection of 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;
- ultimate strength during compression 0.035 MPa;
- specific heat capacity 1.95 J/kg°C;
- sound absorption - not less than 32 dB.
Scope of penofol
Universal penofol is suitable for warming summer country houses and thermal insulation of high-rise buildings. The characteristics of the material determined its wide popularity and demand, both in the construction of fundamental buildings and in the repair work at home.
Penofol is used for the following purposes:
- Thermal insulation:
- Processing of building elements:
Important! Penofol reflective will not only help to keep the heat in the house as warm as possible in winter. Laid under the roof, it will not allow the scorching summer heat
Types of foil penofol
Manufacturers offer several types of penofol for different purposes. In the traditional classification, three classes of material are distinguished:
- Type A- one-sided penofol (a layer of aluminum film is applied on one side of the foamed polyethylene). This type is mainly used as an addition to the main thermal insulation - polystyrene foam or styrodor.
- Type B- double-sided foil foam, universal and can be used as a stand-alone insulation.
- Type C- self-adhesive type of insulation. On the one hand - a reflective layer of aluminum, and on the other - polyethylene foam with moisture-resistant adhesive, protected by a sticker. Penofol self-adhesive is convenient when 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 occupied their niche in the construction market:
- ALP type- laminated penofol, one of the foil sides of the insulation is covered with a polyethylene film; penofol class ALP is used for insulation of agricultural buildings that are operated in a slightly aggressive environment;
- M types and R- insulation with one-sided foiling, has a relief surface;
- penofol AIR designed for the arrangement of air outlet structures;
- Penofol Super NET(translated from English as “network”) - the main task is heat and vapor insulation of pipelines, air outlets and heating mains.
Choosing the optimal type of penofol
The main parameters to consider when choosing penofol:
- type of insulation (one- or two-sided);
- manufacturer company (it should be noted that "Penofol" is the name of the brand, and not the type of insulation; others construction companies manufactured under other commercial names);
- price category;
- material thickness.
- 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 with dimensions of 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.
- In the assortment of construction stores there is Penofol 2000 marking - more cheap analogue standard penofol (you can buy material at a price of 35 rubles / m2). However, experts note that penofol 2000 is inferior in strength to branded insulation.
- The optimal ratio of cost and performance characteristics demonstrates 5 mm penofol (the price of such a heater is about 70 rubles / m2).
- Penofol type A is suitable for insulating roofs, basements, saunas, balconies, ceilings and walls, class B is better for arranging a floor on wood, and metal structures- penofol type C.
Video: Comparative characteristics penofol and its analogues
Features of laying penofol
The maximum effect of foam insulation will be achieved subject to certain rules:
Important! When attaching penofol, one should not forget that aluminum foil is an excellent conductor of electric current. Therefore, with a close location of the insulation with electrical wiring, care must be taken to carefully isolate the wires.
By choosing foil penofol, the characteristics of which correspond to the operating conditions of the material, you can not use additional vapor, heat and waterproofing. In addition, it will turn out to save on the purchase of auxiliary and installation tools.
Penofol is an insulating material that combines heat, noise and vapor barrier properties. Its basis is self-extinguishing polyethylene foam, aluminum foiled (on one or both sides). The thickness of the sheets of material is from 3 to 10 mm.
When mounting, it is important to avoid overlaps; butt mounting is the most suitable option.
This insulating material, with its small thickness, has a very low thermal conductivity. The application provides high resistance to heat transfer due to special properties. A large number of closed pores and high reflectivity of polished aluminum foil reduces the radiant component of heat transfer, which is of the greatest importance 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 where noise and heat insulator of small thickness is required. Steam and waterproofing qualities allow you to completely replace traditional vapor barriers. Due to its lightness and flexibility, it fits seamlessly into structures. false ceiling and "warm floor".
Since the beginning 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 variant finds application and is in constant demand even now. Over time, they began to produce different kinds penofol with additional properties:
- Type A - one-sided foiling. It is used in combination with other heaters (polyfoam, styrodur).
- Type B - double-sided foiling. Can be used standalone.
- Type C - one-sided foiling, the second surface is covered with an adhesive composition with protective film. It is pasted on the main heaters or on the basis.
- Type ALP - one of the surfaces is covered with foil (14 microns), laminated on top with a polyethylene film.
- Types M and R are embossed with one-sided foiling.
- Perforated. It has the property of passing air due to the peculiarities of the structure.
Applications
How widely the use of the material 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-capital buildings;
- production facilities and technological equipment;
- heat, steam and waterproofing of saunas, showers,
- insulation of warm floors and roofs;
- pipelines and expansion tanks;
- car bodies, commercial and residential trailers, refrigerators;
- insulation and soundproofing of air conditioning, ventilation and sewerage systems;
- as heat reflectors for home radiators.
Wall and ceiling mounting
Type A. The material is fastened with a stapler to the inner surface of the wall or ceiling with foil inside the room. Laying is carried out "butt-to-butt". The joints are sealed with mounting tape ("LAMS"). On top of the layer, slats (thickness 1.5-2 cm) are attached, designed to fasten the 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-packed onto the structure. The sheets are cut to size, fastened with a stapler, the joints are glued with aluminum mounting tape. On top of the foam layer, slats are also attached as a basis for finishing. With this method, the properties of both foil surfaces are maximized.
If an external laying of thermal insulation is expected, perforated foam is used. It is mounted with foil outward in front of the facing layer. At particularly low outside temperatures, it is advisable to use the material in conjunction with foam or mineral wool.
Roof vapor barrier
In multilayer roofs, penofol is mounted between lathing battens. A prerequisite is the ventilation of the air gaps. Sheets are attached along the ceilings using the same technology as on the walls. If the roof equipment project provides for the use of foam plastic, then with the installation of foam foam, the costs will be reduced by 2-3 times with the same quality.
When arranging an insulated attic, the material is laid parallel to the cornice overhang directly on the rafters. The overlap of the strips is left at least 10 cm. Penofol is fastened with brackets without tension, forming a sag of about 2 cm. This will allow condensate to be freely drained from the rafters of the counter-lattice. Since the flow of moisture is directed upwards from the premises, water vapor, condensing, moistens the insulation. Therefore, a layer of penofol is attached under it.
Insulation mounting methods
A layer of insulation from type A or C is laid under the finished floor. Pre-filled concrete screed with expanded clay. It can be replaced with a layer of foam (5-10 cm). Penofol is glued or attached to the foam plastic with an overlap on the walls of about 10 cm around the perimeter. 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 above the foil layer, slats (1.5-2 cm) are stuffed. When installing a wooden floor, their role is played by logs. Logs, like slats, are impregnated with drying oil or an antiseptic.
When equipping a “warm floor”, the insulator is placed on a dry screed with a foil layer down, in another embodiment, the reflective layer is directed inside the room. At the same time, a polyethylene film is laid on top of the penofol. Type B is used for arranging the floor of the lower floors above damp and cold basements.
When equipping a "warm floor", if a screed is planned to be poured over the heating elements (for example, under a tile), ALP type foam is used. cement mortar aggressive towards aluminium. The sheets are placed on the screed up with foil with a 10 cm bend on the walls and glued with aluminum tape. After installation heating elements a reinforcing mesh is placed and a screed is poured. The edges are trimmed.
Penofol type A and C is used when installing a warm floor under a floorboard covering. When laying heating elements on the material, it should be remembered that the foil layer has conductive properties.
Floor insulation with penofol is provided due to the reflective effect of the foil layer. It promotes uniform heating of the coating. Impact noise is reduced by 20 dB. Moisture penetration is excluded.
https://youtu.be/diJknmnRqZc
Use for insulation of balconies
The foil layer reflects up to 97% of heat into the room. This makes penofol an effective insulator for warming balconies and loggias. Due to the small thickness, it does not "hide" the usable volume of the room.
Before insulating work, the old finish is dismantled. Corners and cracks are sealed mounting foam. A heat insulator (penoplex, technoplex) is glued or attached to the walls. Vertical logs are fastened through it with dowels to the wall with a step along the width of the foam roll. This sequence takes into account the high thermal conductivity of wood and reduces the risk of freezing. Penofol is attached to the logs with a foil layer towards the room.
Penofol fastening does not require special tools. To work, you need a knife (scissors), a stapler (hammer) or a glue brush.
https://youtu.be/4JT_Sud8sBE
The cost of insulating material depends on its thickness and the number of foil shells. One-sided penofol can be purchased at a price of 45-75 rubles / m 2, two-sided - 70-110 rubles / m 2. For laying penofol, contractors usually ask for a fee equal to the cost of the material itself.
