Most of the heat loss in buildings is due to infrared radiation. In this regard, massive materials (basalt wool, foam, etc.) are not able to give the maximum level of thermal insulation. However, this problem has a constructive solution - Aluf.
Alufom has a foil aluminum base, which is why it is able to reliably protect buildings. On hot days, it reflects thermal radiation, and in winter retains heat inside. Next, we will get acquainted with the main features of such thermal insulation.
Advantages and disadvantages
This type of thermal insulation has the following advantages:
- Highest heat reflection. In this aspect, foil models more than outperform bulk materials. Their efficiency is close to 100% (on average it is 97%), which virtually eliminates the possibility of heat loss.
Tip: such thermal insulation is the best option for finishing baths.
- Another major advantage of this insulation is its absolute moisture resistance. The aluminum layer is not “afraid” of even direct water ingress, which ensures the material a long operational period.
- Due to its properties, Aluf can also serve as sound and waterproofing. Laying two layers will completely solve the problem with finishing floors.
- High temperature resistance. The operating temperature range is quite high, so it can be used in all regions, even in the coldest.
- Space saving. The thickness of the insulation does not exceed 5 mm, which significantly reduces the cost of usable area when creating a thermal insulation layer.
- Easy installation. Aluf is very light, which makes it easier to work with him. There is no need to create any strength frameworks - sheets can be immediately attached to the original surface.
Are there any significant disadvantages of this insulation? The only serious disadvantage of this material is its relatively high price. You can organize a high-quality insulating layer at a cost of 1.5-2 times lower. However, it should be borne in mind that it gives sound and moisture protection, so there is no need to lay the appropriate layers.
Key Specifications
When choosing a heater, the most experienced masters first of all pay attention to technical characteristics, since its effectiveness will depend on them. Next, we consider the main indicators that affect overall efficiency.
| Technical specifications | Material type | ||
| AND | IN | FROM | |
| Coefficient of thermal reflection (from) | 0,9 | ||
| Optical reflection coefficient (from) | 97 | ||
| Thermal conductivity (under normal conditions), W / m * C | 0,031 | 0,032 | 0,033 |
| Specific gravity (for models of standard thickness) kg / m2 | 0,15-0,22 | 0,17-0,24 | |
| Water absorption coefficient (percent) | 0,7 | 0,65 | 0,6 |
| Elasticity index (dynamic) MPa | 0,26 | 0,39 | |
| Heat absorption rate (per day) | 0,51 | 0,45 | |
| Specific heat capacity m2 * C / W | 1,95 | ||
All available classifications
There are several varieties of insulation Aluf, differing in their key technical characteristics:
- Aluf A is a polyethylene foam coated on one side with aluminum foil. Most often used as a vapor barrier, or an additional insulation. Laying in 2 (for cold layers 3) layers allows you to create reliable protection against heat loss.
- B - is a polyethylene foam coated on both sides with aluminum foil. These are already more advanced models with a maximum operational period. Most often used for decorating roofs, attics, attics, etc.
Important! When buying, ask the seller for certificates of conformity. Today, often, under the guise of popular materials, they sell cheap, partly “artisanal” analogues. This is especially true for the field of foil insulation, in which the population did not have time to fully understand.
- C is a particularly flexible polyethylene, which is coated with aluminum spraying on one side and the main adhesive on the other. This greatly facilitates the installation of the material, since it is unnecessary to take self-adhesive and additional fixing measures. Most often, such a variety is used for arranging air ducts and heat mains (in combination with kaolin)
Application area
As mentioned earlier, Aluf was widely used in many industries. This happened due to its high efficiency, which most competitors cannot boast of. Use it for warming:
- Roofs, attics and attics. Here, high moisture resistance comes to the fore.
- Saunas, baths, garages.
- Climatic systems.
- Walls of private and industrial buildings. In this case, both external and internal insulation is permissible (in the second case, the efficiency will be several times higher).
- Water mains. In this case, group B is used.
- Heating boilers, underfloor heating. This is achieved through a wide range of operating temperatures. Not many competitors are able to withstand such enormous loads (daily differences up to 400 degrees)
- Transport facilities. In particular, even more often the rest are used for finishing containers and vans. Its properties are ideal for these conditions.
- Country and agricultural buildings.
Conclusion
In general, Aluf seems to be an excellent material that can solve many problems. However, given the high cost, it can only be recommended in cases where there is very high humidity (baths, saunas, baths, etc.), or when the design features do not allow the use of more massive materials.
Reading time ≈ 3 minutes
Reducing heat loss is the main task of every homeowner, both private trader and legal entity. Only the right choice of heat, water and sound insulation can guarantee a comfortable microclimate inside the building. In this article, we will consider reflective insulation by Aluf.
Features of Alufoma
Since the bulk of the heat loss is due to infrared radiation (about 65%), massive insulating materials cannot completely protect the house. The main material that is able to return the rays back to the source is a foil containing a high proportion of aluminum. The walls of the building with such protection in the heat of summer will reflect heat radiation to the outside, and in winter heat to the inside.
Aluf is an innovative hydro-, sound-, thermal insulation with a high coefficient of heat reflection. Its functionality is based on the properties of polished foil with a high content of aluminum and air bubbles inside polyethylene microfoam. This feature of the structure of the material is clearly visible in the photo. Aluf insulation can reflect about 97% of heat radiation, preventing the room from heating in summer and cooling in winter.
Scope of application
Today, the use of Alufoma knows no boundaries. It is used in construction, in transport, in greenhouses (tents, blinds), in thermal insulation packaging, in sleeping bags, thermal blankets, in tents. This material is most widely used in construction. It is used in the following cases:
- roofs;
- under warm floors;
- walls (inside, outside);
- climatic equipment;
- ventilation;
- pipelines;
- heating appliances, boilers;
- metal structures;
- country buildings;
- agricultural buildings;
- saunas.
In the transport industry, alufum insulation is indispensable in vans, containers, it is excellent for protecting motors and bodies.
Specifications Alufoma
Varieties of material
Depending on the technical characteristics, Aluf is divided into several varieties. Aluf A - This is polyethylene foam, which has a one-sided foil coating. It can be used as a vapor barrier or as an additional layer of thermal insulation. This insulation is sometimes put in 2 layers. Then it is able to provide hydraulic protection and full thermal protection. Aluf B - polyethylene foam coated with foil from 2 sides. Aluf C - a material based on polyethylene foam, which is coated with foil on one side and glue and special coating material on the other. This variety is mainly used on air vents.
Benefits of Aluf Insulation
This material has a lot of advantages over analogues. According to reviews, using alufom, you can provide the most reliable thermal protection. In addition, it creates soundproofing, vapor and waterproofing, provides protection from radon. It is able to function reliably in high humidity. Has no significant flaws. The use of alufom saves usable space, because the material has a small thickness. In addition, it does not rot, does not wear out, and is environmentally friendly. It is mounted quite simply, no special clothes are needed. It is a lightweight material that is available in transportation and installation.
Video
Reflective insulation ALUFOM is a comprehensive heat, steam and sound insulation with a high reflection coefficient of radiated thermal energy.
As a reflecting element ("thermal mirror"), polished aluminum foil (ALUFOM AL) or metallized polypropylene film (ALUFOM PE) is used. Foamed NPE polyethylene is used as a base.
The overall efficiency of the heat-insulating system with the use of ALUFOM reflective insulation is increased by 20-70% (depending on particular conditions, seasons, etc.).
Properties
High reflectivity;
Resistance to temperature changes;
Zero water absorption;
Excellent heat, steam and waterproofing;
Good sound absorption;
High mechanical strength;
Ecological cleanliness;
Quick and easy installation that does not require special training;
Durability.
Certification
Aluf reflective insulation is made in accordance with TU 2244-001-53254732-2006 and has the following certificates:
Certificate of Conformity to RF standards No. ROSS RU.AYA46.N47607 from 01.06.2006
Hygienic certificate No. 78.01.05.224.P.003229.05.06 dated 05/02/2006
Prices for ALUFOM
Specifications
Application
ALUFOM AL is recommended for use:
Heat and vapor barrier of baths and saunas;
Heat, sound and vapor barrier of the premises;
Heat, hydro and sound insulation of pipelines, ventilation and sewage;
Subroofing vapor barrier with simultaneous heat and sound protection;
As a reflective screen for heating batteries.
ALUFOM RE is recommended for use:
In systems "warm floor" for cement and gypsum screed;
Heat, sound and steam insulation of rooms with high humidity;
Heat, hydro and sound insulation of pipelines, ventilation and sewerage;
Subroofing vapor barrier with simultaneous heat and sound protection.
Mounting Alufoma
Reflective insulation ALUFOM AL is mounted directly on the wall and ceiling of the steam room of the bathhouse or sauna with a reflective coating inside the room. If necessary, the front door is insulated. Installation is carried out using a construction stapler, or small nails. Cloths should be installed “butt”, connecting the joints with aluminum tape. A prerequisite for the effective action of this insulation is the presence of an air gap of at least 9-15 mm from the surface of the foil to the nearest surface.
Aluminum is a good conductor, so the wiring must be reliably protected.
A wooden crate is attached to the reflective coating, on which the interior finish is mounted (lining, etc.)
Reflective insulation ALUFOM PE is laid on the surface of the floor slab with a reflective coating up. Cloths should be installed “butt”, connecting the joints with metallic tape to create a complete vapor and waterproofing. Heating elements are mounted on the reflective coating, and the contacts should be insulated to prevent short circuits. Then the entire surface is poured with a monolithic cement-sand screed (4-6 cm thick). Moreover, additional protection for the reflective coating is not required, since it is made of a polymer metallized film and is able to maintain its properties in an alkaline environment of a cement-sand mortar.
The latest thermal insulation materials help to significantly reduce the cost of heating the premises. Cladding walls with foil insulation is an economical solution for homeowners who are ready to install heat insulation on their own.
Features of foil material
Combined insulation includes two main components: thermal insulation material, foil. The aluminum coating provides the main qualitative property of the insulation: reflective thermal insulation with an effect of 97%. In addition to thermal insulation, the main advantage, the material is characterized by properties:
- elasticity;
- soundproofing;
- water tightness;
- environmental friendliness.
The foil product has a long service life without loss of quality characteristics, is not subject to decomposition, deformation. Manufacturers indicate a service life of up to 95 years. Light weight and layer thickness are convenient in transportation, installation, do not take up living space in the interior decoration of apartments, allow you to simulate structures in the decoration of curly elements. Even an inexperienced person in construction work can cope with the installation of foil panels, plates.
For the external walls of the building, finishing with foil insulation is a reliable protection against the adverse effects of climatic factors: wind, severe frost, high humidity, temperature difference. The heat resistance of the material is combined with resistance to solar and radon radiation. An important factor is the interaction of the heat insulator with different facing materials.
Types of foil insulation
Products are produced with different indicators of the density of the foil layer, types of heat-insulating base.
Penofol
Universal insulator (second name: Isolon, Ecofol) based on foamed polyethylene. Foil coating is allowed both unilateral and bilateral. One of the types of products is a self-adhesive cloth with an adhesive layer under the protective film - installation of a heat insulator is greatly facilitated. Foam rolls are supplied. Some types of material are reinforced in the structure with fiberglass reinforcing mesh. Penofol is known as an environmentally friendly and safe heat insulator.
Penofol foil self-adhesive
Layer thickness 3-8 mm. Thermal conductivity 0.038 W / (mK), moisture absorption within 0.35-0.7%. The vapor permeability of the material is 0.001 mg / m * K.
Penofol is fixed on the walls for central heating batteries in order to preserve heated air by reflective thermal insulation. It is recommended to keep the free space between the wall and the battery approximately 2 cm. The material serves not only as a lining of the interior walls of the room. Foil foamed floor finish, roofs, insulate pipes. High rates of waterproofing insulation with foil justify the use in the construction of saunas.
The thickness of the heat-insulating base of the insulation affects the cost of a penofol roll.
Foil Mineral Wool
The product is available in the form of plates, mats, rolls with an insulating layer thickness of 5-10 cm. Foil coating is present only on one side.
In the role of insulation, fiberglass, stone basalt wool is used. The use of the second material is limited to the external decoration of the walls of buildings or use in non-residential buildings. The reason lies in the dangerous secretions of phenol for human health. Additional insulation of foil plates with a protective film is carried out where increased resistance to high temperatures is required.
According to the technical characteristics, basalt wool can withstand temperature fluctuations from - 200 to + 300 ° C. Thermal conductivity up to 0.07 W / (mK). Aluminum protection provides hygroscopic material from high humidity. Products are highly durable, do not attract rodents, are not susceptible to fungal infections. An important factor is the resistance to ignition, so the material is often used for sheathing wooden buildings, baths. The long service life allows the use of basalt insulation in non-residential buildings with an aggressive environment.
Fiberglass wool with a waterproofing layer of foil is often used in the internal thermal insulation of walls of saunas, showers.
Styrofoam
A foil product based on the fusion of polystyrene granules is in demand by the “warm floor” system. The markings made by the manufacturer are designed to carry out a cable system. The thickness of the material is 3-5 mm. The thermal conductivity does not exceed 0.035 W / m2, density - up to 45 kg / m3.
Foil insulation for underfloor heating
Increased strength ensures safe use in places with mechanical stress, with high humidity. Preserves properties in the temperature range from -180 ° to + 180 ° С.
The use of foil insulation
Thermal insulation materials with foil coating are compatible with almost any surface. Given the properties of different types of insulation, most often, walls on the inside and outside, verandas, floors, entrance doors, balconies of various buildings are subject to decoration.
- for floor insulation - solid polystyrene foam boards;
- for saunas, baths - mineral wool with high vapor barrier;
- for walls, doors, ceilings - insulation based on foamed polyethylene.
Thermal insulation of the surface of walls, partitions behind heating devices, batteries is easier with self-adhesive material.
Rules for the installation of foil insulation
A feature of the installation of foil insulation is that the shiny side with a metal coating should always be directed inside the room. Incorrect installation will result in loss of reflection effect, i.e. lower thermal insulation.
Between the finish of the wall and the layer of foil insulation it is recommended to maintain an air gap of up to 1.5 cm for additional thermal protection, the effect of a thermos.
For the home foreman to install the insulation you will need:
- large head nails;
- hammer and claw hammer;
- construction tape;
- acrylic or rubber glue;
- construction stapler.
You can cope with the work alone, but the implementation of the installation together, with an assistant will go faster.
Sealing gaps with aluminum tape
Insulation of walls indoors
The main stages of laying insulation:
- Wall preparation. Insulation of walls with old wallpaper from the inside requires preliminary cleaning, coating with an antiseptic.
- Fixing insulation. The sticker of roll sheets on the wall or the construction of the crate, in which cells are fixed, is allowed. The first installation option is more common.
- Additional fixation of the insulation with a construction stapler or nails.
- Processing slots with aluminum tape.
- Fixing rails to create an air gap in front of the final cladding.
Basement thermal insulation with foil insulation from the inside When installing the insulation inside the room, at home, you should consider:
- laying mineral wool should be in dense rows without gaps between the plates;
- material foil on both sides needs two air pockets - from the outer wall, from the finish;
- sheets of rolled insulation are never lapped on top of each other;
- the fastening of self-adhesive mineral wool with a foil layer should be strengthened with nails around the perimeter to reduce the risk of delamination.
Insulation of the garage from the inside If the room is completely lined with insulation, then work should begin from the ceiling, then go to the walls, lay the floor insulation - last.
Insulation of walls outside
Insulating walls from the inside is preferable, since it allows you to better retain heat. If for some reason this cannot be done, then heat-insulating materials are mounted outside. Experts recommend the use of foil mineral wool.
The master will need the following materials and tools to carry out the work:
- mineral wool of medium thickness with a foil layer;
- glue;
- construction gun;
- brush;
- windproof film;
- dowels.
Wall insulation outside Insulation of the external wall is the formation in a certain way of a “puff pie” with a filling in the form of a heat insulator - foil-coated mineral wool. The work is carried out in stages:
- Creating a metal crate for the location of plates of insulating material. The structure is attached to the concrete or wooden wall of the building with dowels. The choice of a metal frame is more reliable than a wooden one, since the lining will be resistant to deformation when exposed to various temperatures and humidity.
- Fixing the insulation on the crate with gluing on the wall. On the reverse side of the foil mineral wool slabs, it is necessary to apply a pointwise adhesive mass, press it against the wall. Additional fasteners can be dowels.
- Leveling the surface with a grinding brush.
- Fixing a windproof film, waterproofing. Fixation is carried out with a construction stapler, small nails with large hats.
Insulation of a brick house outside It should be noted that the construction of a metal lath made of galvanized profile should be taking into account the width of the panels, plates of the heat insulator in order to reduce the number of joints.
Finishing is usually mounted on an additional subsystem while maintaining a ventilation gap.
The cladding of the external walls of wooden structures can be made with foamed foam foil. The material is lighter, the cost of insulation is lower. It is recommended to choose a perforated type of penofol to enhance protection against wall soaking.
Before directly installing the insulation, the walls need to be treated with an antiseptic, paying special attention to the corners of the house. The joints of the foam sheets are recommended to be glued with metal tape. The lathing can be wooden. The work is carried out in the same order as when installing mineral wool.
It is important to take into account that the insulation of the external walls of the house is carried out exclusively in dry weather at a positive air temperature.
The use of foil insulation enhances the effect of maintaining a comfortable environment in the room. Experts recommend taking this factor into account when deciding on the choice of thermal insulation material.
2017-09-27 Evgeny Fomenko
Installation of insulation foil
Foil insulation has a wide range of applications, it is used for insulation of pipes with cold and hot water, for wall insulation, as a substrate for laying parquet or under a laminate, for insulation of hives, sound insulation of rooms, roofing, ventilation ducts, thermal insulation of industrial equipment.
The walls are sheathed with such a heater inside the room behind the batteries to reduce heat loss, since it is heat-resistant. The following brands are represented on our market: Aluf, Ursa, Penofol, Folgoizol, Izolon, Knauf, Lavsan, Magnel, Megaflex, Penoplex, Ecoteplin, the most popular type is with foil and foam foam.
How much does this material cost? It all depends on the manufacturer to whom you give preference, the price ranges from 1 to 4 $ per meter2. Let's try to consider in more detail how to properly put this material on various surfaces.
On the wall
Often walls are insulated with similar material in baths, saunas, on balconies, in which case polyethylene-based material is used. It is recommended to use a heater with a thickness of at least 10 mm, a similar material can be covered with foil both on one side and on both sides.
If you consider the options on which it can be attached, a construction stapler, double-sided tape are best suited, you can also use special glue on a rubber basis, the joints of the sheet are glued with tape. If we are talking about warming the balcony, then you need to lay an additional thermal insulation layer, for example, polystyrene, basalt material or another.
Is it possible to insulate without them? Of course, yes, but you will not get the desired result. In order for the insulation to fulfill the task assigned to it, it is necessary to figure out how to put it correctly. The distance between the material and the casing should be approximately 20 mm, this will create a kind of air gap that will serve as an air barrier.
Consider in detail how to properly attach to the wall:
- Attach Styrofoam to a previously prepared surface.
- Over him fasten the foil insulation.
- Then on top assemble the wooden blocks, then sew all the selected material (gypsum, siding), sew the joints with foil tape.
To the ceiling
As a rule, the maximum thickness of the insulation is selected on the ceiling, since all the heat rises up, and there its maximum losses occur. Due to its reflective surface, the insulation is able to reflect up to 90% of the heat, thus increasing the overall efficiency of the insulation system by 60%. These specifications will be available subject to the installation rules.
To carry out the work you will need the following:
- The stapler is construction.
- Small nails.
- A hammer.
- Insulation material.
- Aluminum tape.
Such a product is sold in rolls, for ease of installation, cut it into the desired segments. And which side to lay it? Installation should be done so that the foil surface is indoors (the silver side to you). So, let's figure out how to nail this material.
The gap between the finishing material and the insulation should be about 20 mm, this buffer zone protects the room from heat loss.
When attaching to the ceiling, fasten it using a stapler, the fastening should be butt-to-butt, and glue the mounting seams with aluminum tape to ensure hydro and thermal insulation.
On the floor
Perhaps the installation process on the floor is the most time-consuming, and there are more possible variations, since you can lay linoleum, parquet, laminate, underfloor heating (not just water). All this is possible, thanks to its non-combustible base, since on the one hand there is a reflective foil, and on the other, foam rubber.
Some manufacturers have variations where foam is on both sides. So, we will describe in more detail the process of installing a wooden floor. To do this, we need the following: a construction knife, insulation, aluminum tape, meter, a polishing machine, an antiseptic primer, and putty.
For this type of work, it is better to give preference to a material with an adhesive base, however, you can get out of the situation with double-sided tape.
Work execution order:
- Prepare the foundation, remove the baseboard, treat the floor with a grinder, if there are bumps, remove them using putty.
- Treat with antiseptic liquid. After drying, take measurements and cut into the necessary pieces. Lay a sheet, inside should be foam rubber, and outside foil.
- Run joint sealingusing metallic tape.
- Then lay parquet, laminate.
If you perform insulation of a concrete floor, the technology is similar, however, it is better to use specialized rubber glue for gluing. But the rest of the technology is the same. If you have a very cold floor, in this case, wooden logs are filled on the insulation, the niches in them are filled with insulation material, sewn on top with sheets of OSB plates, then the selected coating material is primed and laid.
Varieties of material
Let's look at what types of insulation are called:
How to put insulation on pipes
As a rule, such a material has the form of a pipe “cocoon” made of mineral wool (can withstand high temperatures) or expanded polystyrene (moisture resistant). And how to insulate them, the question disappears on its own, because they have the appearance of a “cocoon”, which they put on top and fix. There are trunk pipes for chimneys of various diameters and temperature conditions.
However, if you decide to purchase a sheet of insulation, you may have a question, how to glue it to the metal? To help you come aluminum tape, which is wound on the insulation over the pipe. And, as in the above options, you need to wear a shiny side to yourself.
Is it possible to insulate the walls outside
To insulate the walls from the outside, perforated foil insulation is used. This material, which has, among other things, soundproofing qualities, is able to protect your home from moisture and wind, and also does not prevent moisture from leaving the room. This option is ideal for those who do not have the opportunity to perform such work indoors. However, such events can be performed only in the warm season and in dry weather.
To do this, you will have to do the following:
- If you had any kind of coating on the wall, you need to get rid of him. Then treat the surface with an antiseptic solution. It is better to do this in hot weather, so that everything dries well, especially carefully treat the lower part of the building. Within two days, the surface will completely dry.
- Further build a frame of timber, fix it with self-tapping screws. Lay Penafol, then leave the air tunnel, glue the joints, then mount the outer frame.
In conclusion, we suggest watching a video on the installation of Penofol thermal insulation:
