Isospan windproof film technical characteristics. Isospan types and their use for vapor barrier and waterproofing. What is Izospan - what is it for

The name of the material comes from the name of the company that produces it. It means several polymer films that are completely different in properties and purpose. All products of this brand are usually divided into three main groups:

Izospan A protecting membranes from water and wind. They are widely used in roofing and facade works as protection of the elements of the roof structure, as well as the interior from atmospheric precipitation. In this case, the film is able to pass steam through itself, bringing it out. This property of such membranes prevents moisture from forming condensation on the insulation or parts of the roof truss system. Some varieties are flame retardant. Average vapor permeability was determined around 3500 g / m² per day. It must be said right away that the material cannot be used on a roof with an angle of inclination less than 35 ° C. Mandatory requirement - installation should be carried out only in normal weather;

films that do not allow water and steam to pass through, belong to the Izospan V line. Unlike its counterpart, it is mounted indoors. After all, its task is to prevent steam from entering the heat-insulating layer from the room and form condensation there. Insulation plates covered with such a membrane always remain dry, which protects them from the formation of mold and fungal colonies. Instructions for the use of Izospan B will be described in more detail;
Izospan S is designed not only to protect the insulation layer from wind, high humidity and steam, but also to create an additional insulation effect due to a special coating that can reflect infrared rays. This greatly reduces the energy consumption of the home, creating good savings on heating costs. It has a structure consisting of two layers. One layer is always smooth, and the other is rough, which better keeps condensation. The material is very waterproof, over 1000 mm. water Art. Its vapor penetration resistance is 7.0 Pa / mg.

Technical characteristics of Izospan films:

IZOSPAN vapor permeable membranes
Brand	Density, g / m2	Composition		Water vapor permeability, g / m2 / day, not less
A	110	100% pp	177/129	1000	250
AM	90		110/90	850	880
AS	115		165/120	1000	1000
Steam-waterproofing IZOSPAN
Brand	Density, g / m2	Composition	Breaking load longitudinal / transverse, N / 5cm		Water resistance, mm.water column, not less
B	70	100% pp	128/104	7	1000
C	90		197/119
D	105		1068/890
DM	105		560/510
Reflective vapor-waterproofing IZOSPAN
Brand	Density, g / m2	Thermal reflection,%	Breaking load longitudinal / transverse, N / 5cm	Resistance to vapor permeation, m2 hPa / mg, not less	Water resistance, mm.water column, not less
FB	132	90	330/310	vapor-tight	waterproof
FD	132		800/700
DS	92		120/80
Brand	Thickness, mm	Thermal reflection,%	Breaking load longitudinal / transverse, N / 5cm	Resistance to vapor permeation, m2 hPa / mg, not less	Water resistance, mm.water column, not less
Fx	2-5	90	176/207	vapor-tight	waterproof

Helpful advice! The instructions for use of Izospan B suggest that if the film breaks against any sharp objects, it can and should be repaired. For this, the place of damage is glued with a special adhesive film.

All of the listed varieties, with their differences, have a number of positive, common qualities for them:

they are easy to install and are delivered in roll form;
are not afraid of ultraviolet radiation;
do not allow moisture to pass through;
their cost is quite suitable for everyone who is engaged in the construction or insulation of their homes.

Next, we will consider in detail the instructions for the use of Izospan B and its technical and quality characteristics, since it is this type of membrane that is in greatest demand, thanks to a very successful combination of consumer properties and price.

Technical characteristics of Izospan B vapor barrier

This type includes two-layer vapor barrier membranes that can not only contain moisture, but also prevent steam from penetrating through them. They are 100% polypropylene. These films are produced in rolls with a width of 160 cm. One roll can cover a surface of 70 m². The density of the film is 70 g / m². These membranes are quite strong, since their tensile load along the fibers is 128 N / cm, and across the grain is 104 N / cm.

Vapor permeability indicators are very low and are around 22.4 g / m² / day. Water resistance - 1000 mm. water Art., which is enough. UV resistance is observed after 4 months of continuous exposure. The technical characteristics of the Izospan B vapor barrier allow it to be used in a wide temperature range, which is from -60 to 80 ° C.

Instructions for use of Izospan B

Before using this material for vapor barrier purposes, you must familiarize yourself with some of the requirements for its installation:

when covering insulation, mounted on vertical or inclined surfaces, work must be carried out from top to bottom. The strips of material are fixed horizontally with an overlap of 15 cm. A special adhesive film allows you to isolate the joints;
which side to the insulation Izospan B is put, not everyone knows. Meanwhile, this is very critical, since improper styling completely negates the effect of using this material. It must be remembered that the smooth side is always placed on the insulation, and the rough side is directed into the room;

Diagram of the correct use of the film for vapor barrier in the process using expanded clay

fix the membrane to the surface to be protected using wooden blocks, clamping strips and a construction stapler.

Since this vapor barrier material has a wide range of applications, we will consider the features of installation on several types of surfaces. When creating a vapor barrier in the attic, the membrane can be attached to the rafters in two ways.

The modern market for thermal insulation materials is large. The old methods of insulation, such as straw, sawdust, wood chips and clay, as well as glass wool, have been replaced by more modern ones - kermazite, mineral wool, penoizol, polyurethane foam and others.

And if some of the insulation materials are resistant to moisture, then materials such as mineral wool, expanded clay or penoizol have increased water absorption, which significantly reduces their thermal insulation characteristics.

Here, various steam and waterproofing films come to our aid, which help to preserve all the useful properties of such heaters. One of such vapor-waterproofing is Izospan film. The use of films and membranes in construction is an important component that cannot be avoided.

What it is?

This is a film, a membrane that helps to protect not only insulation from moisture and wind, but also walls and roofs. Manufactured from polymeric materials. It has an interesting property - it allows steam to pass through on one side, and not on the other.

Important... The use of this material is quite widespread both as vapor barrier membranes and as a reflector of infrared radiation (types with a metallized surface).

Varieties of Izospan

Izospan A. Possesses the property of ridding the roof space from condensation, well protects the insulation from moisture. There is a version with flame retardants (OZD marking), the purpose of which is not only to protect against wind and moisture, but also to prevent accidental ignition, for example, during welding.
Izospan V. Vapor barrier membrane. It must be laid in order to protect the insulation from the penetration of condensation from the side of the room.
Izospan AS. This diffuse membrane can be placed directly on the insulation without leaving a ventilation gap, this saves both physical labor and money. Consists of three layers, has excellent water resistance and vapor permeability.
Izospan AM. It has characteristics close to Izospan AS, the vapor barrier also consists of three layers. You need to put it directly on the insulation, so you don't need a special crate.
Izospan AF and AF +. The vapor barrier is designed to protect mineral wool and glass wool slabs from wind and moisture. Absolutely non-flammable - fire hazard class NG. It is used in curtain walls.
Izospan AQ proff. A universal three-layer membrane that perfectly protects against moisture and wind, is used as a vapor barrier against moisture from the external environment. You can put it directly on the insulation. In addition to excellent moisture resistance and vapor permeability, it has increased lightfastness and strength.
Izospan FS. Vapor barrier plus the ability to reflect infrared radiation, essentially two in one. It is laid between the wall / ceiling of the building and the insulation, performing the functions of vapor-waterproofing and aluminum foil.
Izospan FB. Kraft paper and metallized lavsan combine the capabilities of foil and vapor barrier. It has increased heat resistance, so it can be used, for example, in saunas.
Izospan S. Two-layer vapor barrier, with one rough side. Condensation accumulates on it, and then evaporates.
Izospan D. Two-layer polypropylene woven fiber. Very tear resistant. Protects from outside moisture.
Izospan FD. Polypropylene woven fabric and metallized polypropylene film. A successful symbiosis combining the functions of aluminum foil and vapor-waterproofing. Moreover, the material protects against moisture penetrating both from the inside of the room and from the outside.

The line of adhesive tapes and adhesive films includes markings FL, FL termo, SL, KL, ML proff

This is metallized tape, adhesive metallized tape, butyl rubber adhesive tape, double-sided non-woven adhesive tape.

Single-sided adhesive tape for ML proff marking is used in particularly difficult situations. It has excellent adhesion to all types of substrates, including uneven ones, it is used to fix waterproofing to concrete, brick and other surfaces, as well as to highly porous materials.

The types and variety of Izospan materials are amazing. You can find the right material for your needs. In addition, the line is supplemented with adhesive tapes and scotch tapes, which is important, since the Izospan windscreen must be placed correctly - without gaps both between themselves and between the insulated base, for which a variety of scotch tapes and tapes are used.

Material characteristics

Where can such membranes be used?

The use of such waterproofing and vapor barrier membranes has found its niche both in private housing construction and in industry, where refractory membranes are successfully used.

In private housing construction, they are used to insulate the roof from wind and moisture, they must be laid with the smooth side to the insulation. If you mix it up and put it on the other side, all the work will be down the drain. So carefully read the instructions before starting work, where it is always written exactly which side of the insulation should be used to put isospan of a certain brand.

The same recommendations can be given for the vapor or waterproofing of the ceiling from the attic side. Before laying the film or membrane, feel it, determining which side is smooth and which is not, then study the instructions to do everything right. If the latter, by some strange coincidence, is absent, remember this simple rule:

if you have a film, one of the sides of which is rough, it is necessary to lay this side towards the street (or room). The smooth side must face the insulation.

Vapor barrier membranes operate on the principle of admission but not release. Therefore, if you decide to lay on the wrong side, break the entire structure of the vapor barrier and heat insulation cake. In this case, it will not be possible to make the insulation correctly.

Izospan is a domestic steam and moisture-proof material with a very wide range of products. If you want to insulate your home correctly, do not forget about steam and waterproofing. It will protect the insulation from moisture penetration and destruction. It is necessary to lay vapor barrier membranes strictly according to the instructions. This way you can do everything right, avoiding unnecessary rework in the future.

Izospan is an insulating film coating. The main purpose of the film is to ensure the preservation of the original characteristics of thermal insulation throughout the entire service life. It is difficult to imagine a modern construction site without the use of various types of thermal insulation. , Isover, various and just polystyrene - all these materials require their own protection.

Thermal insulation materials practically envelop our house, retain heat on frosty and rainy days, create comfort in the hot summer season, preventing the penetration of heat flows. But how to protect the insulation belt from negative atmospheric phenomena? Reliable protection against moisture, rain, destructive wind is designed to provide 100% polypropylene, with a proud name - Izospan.

To create a barrier at the stages of the construction process, to perform the function of protective insulation for thermal insulation, this is the true purpose that isospan vapor barrier successfully fulfills. Despite the apparent simplicity, the material differs in types.

We bring to your attention - Izospan instructions for use. Understand: which side to lay isospan. Consider isospan technical characteristics, and isospan installation method.

Worthy competitors of Izospan:

Before proceeding to a detailed review, it should be clarified that the films are presented by the manufacturer in a wide variety and have different purposes. Vapor barrier films and membranes are subdivided into absolutely vapor- and hydro-impermeable and partially permeable moisture only in one direction. Some of the materials successfully complement the thermal insulation, enhancing its performance.

Isospan vapor barrier specifications

The material is waterproof;
Elasticity is beyond praise, the most difficult sections and bends are easy to get around;

UV resistance;
Resistance to negative atmospheric phenomena;
Does not emit harmful substances. Safe for human health. Doesn't harm the environment.

Withstand temperature differences in the range from - 60 ° C to + 80 ° C
Refractory elements added in production determine the G4 flammability group, according to fire hazard, which is confirmed by the relevant certificates.

Izospan has various uses, given the area of construction use. Isospan insulation type, unique in its structure, has individual technical characteristics and its own marking.

Manufacturers classify their products with letter indexes A, B, C, D, F, R. The combination of letter indexes adds numerous variety, applications and installation of isospan. Each new designation assumes its own isospan application. This fact must be taken into account in the construction of your home.

Roof vapor barrier isospan

Izospan A

The membrane, like a check valve, freely passes water vapor from the side of the thermal insulation. Does not interfere with the natural ventilation of the insulation. On the other hand, it reliably blocks the penetration of moisture from the external atmosphere, prevents the formation of condensation, and prevents the wind from destroying the structure of the insulation.

Due to the water resistance of the material from the outside, membranes are widely used in the construction of roofing structures, are widely used as protection for walls and ventilated facades of buildings and structures for any purpose.

G waterproofingthe property possessed by isospan membrane prolongs the service life of thermal insulation for a long time. Even the best insulation deteriorates over time under the influence of the wind, application Izospan A is the perfect solution to protect your home from the outside.

In a nutshell, we will clarify which side to lay on the insulation Izospan A.The question of which side of Isospan A should be laid is far from idle. As we noted, its work is carried out according to the principle of a check valve. Or, if you want: - let everyone out, not let anyone in. It is necessary to lay the membrane from the outside, on top of the insulation.

The smooth side that can be easily identified by touch should “look” towards the street. The roll is cut into wide strips of suitable size, after which it is neatly spread over the area with an overlap with the next layer.

Roof vapor barrier

The roof waterproofing and vapor barrier starts from the bottom. When laying Isospan A membranes, contact with the thermal insulation material should be avoided. Touching the membrane will significantly reduce its waterproofing properties.

Probably those who went on a hike with their grandfather's canvas tent, noticed that if during the rain you run your finger on the “roof” from the inside, then literally in 10 minutes, it will drip in this place. It is for this reason that Izospan A can only be laid with a double crate.

Isospan flooring is carried out on the outside of the thermal insulation on the battens made of battens. The use of a membrane increases the degree of insulation and prolongs the service life of the entire structure.

It is extremely important during work to control the absence of possible swelling or sagging. Otherwise, you will become a constant listener to the gusts of wind with the characteristic sounds of the membrane beating on the roof. Thin slats are enough to fix Isospan A, leaving 2-3 centimeters of free space to the insulation.

Izospan V

As we found out, Izospan A, firstly, protects from the wind, and secondly, it will create a powerful hydro-barrier for insulation. The danger remains in the form of condensation, the wetting of the insulation is condensate, which, before passing through the membrane in the form of vapor, will saturate the thermal insulation with moisture.

Humidification by only 5%, will lead to a decrease in thermal insulation performance by half. A further perspective is the penetration of condensate onto the metal tile, with the subsequent transformation of the roof into a colander.

Anti-condensation surface combined withsteam and waterproofing effectwill save you from such troubles.Carrying out installation work on the arrangement of the roof, one must clearly understand that even the best insulation for the roof is gradually saturated with water vapor.

Creating a barrier to inner vapors -Izospan Vwill serve as a kind of vapor barrier. The material consists of two layers, a layer with a smooth structure adjoins the insulation during installation, the second fleecy side is designed to absorb condensate.

That is why the installation of the coating is always done with the fleecy side down with a gap to the finishing materials for ventilation and drying. Type B is laid with an overlap with a grip of at least 10 centimeters from the side of the insulation and fixed with a construction stapler or in another way.

Izospan S

The structure of the material combines two layers: on one side a smooth surface, on the other - a fleecy. The fleecy layer retains condensation and subsequent weathering. Izospan S creates a vapor barrier for the insulation, preventing the absorption of vapors of water particles formed inside the room.

The material is widely used in the construction of walls, installation of insulated, inclined roofs and interfloor ceilings. NS aro-waterproofing using type C, it is equipped in various cement screeds, and instructures of flat roofs.

In a word, in terms of structure and characteristics, the material is very similar to type B. At the same time, it has an increased margin of safety and therefore reliability superdense panels above. Buy Izospan C will cost the consumer more than type B by about 50-60%.

Characteristics of Isospan Type C:

100% polypropylene;
Applicable temperature range -60 - +80 ° C;
Breaking load: longitudinal // transverse. H // 5cm not less than 197/119
Vapor tight
water resistance not less: 1000 mm of water column

Application of isospan C:

Inclined roof with an overlap of at least 15 cm
Attic floor protection. A layer of vapor barrier, spread on top of the insulation, smooth side down;
Concrete floor. spreads on a concrete surface, smooth side down;
Wooden floors of horizontal design.

The flooring of the canvas on inclined roofs should be done from the bottom up. The material overlaps about 15 centimeters.

Overlapping joints in order to avoid depressurization are glued together with a special tape, sticky from the sides, like double-sided tape.

The structure is fastened with 5 cm thick slats. A gap of at least 5 centimeters is left between the roof tile and the vapor barrier layer, it is necessary for natural ventilation.

Izospan S is spread on top of the insulation; it is necessary to leave a gap of about 50 millimeters from the panel to the heat-insulating material for ventilation. In the construction of a concrete floor, type C is laid with an overlap on the concrete surface, then a cement screed is laid on the canvas, and only after that the floor covering is mounted.

Izospan D

High strength, fully waterproof waterproofing material. Polypropylene sheet with one-sided laminated polypropylene coating. The versatility of moisture-vapor-impermeable material implies widespread use in construction technologies for the construction of any type of structure.

Izospan D successfully withstands moderately strong mechanical loads, is tear resistant, withstands strong gusts of wind, and in winter it copes with a large snow load. In comparison with other similar films, Izospan D has gained fame as the most durable and reliable option.

Izospan D Scope

In all types of roofs, as a barrier to prevent the formation of under-roof condensation. Widespread use in the device hydro and vapor barrierduring the construction of buildings and structures. Protection of wooden structures.The material largely resists negative atmospheric phenomena.

Izospan D is often used at construction sites as a temporary roof overlap and installation of a protective wall in facilities under construction. Such a roof or wall can last up to four months.

Type D is especially popular when installing concrete floors that need protecting against earth moisture.

Application

In non-insulated roofs as protection for wooden structures;
As protection against under-roof condensation;
Protection against negative atmospheric phenomena;
In the arrangement of basement floors;
Installation of concrete floors.

Recently, more and more owners of country houses understand the importance of the role played by vapor barrier materials, the constantly growing demand is a strong confirmation of this.

Izospan D is spread directly directly on the rafters directly onto the insulated surface of the pitched roof. In this case, the layers of the material are the same and you do not have to be puzzled which side of the insulation to lay Izospan. Installation is carried out horizontally, with an overlap; rolls are cut into sheets of the required size quite easily.

Work is carried out from the lower roof element and gradually follows towards the top. Joints, in the process of laying, are glued with SL tape like double-sided tape.

The surface gluing on both sides connects two canvases of vapor - waterproofing. The wall-mounted isospan is fixed to the rafters with wooden slats or staples of a construction stapler.

Summing up our review, it remains to add that the manufacturer produces 14 types of such roll insulation. We have considered only four main types. The buyer, guided by the characteristics of different types, always has the opportunity to buy Izospan just for his needs.

In addition, the manufacturer does not stand still and is constantly expanding the range of products, for example, there is a version of the film with fire retardant additives.

From our review it is clear that working with the material does not require complex special skills and is within the power of almost any man. Ease of use and low installation costs make this building material a wide range of uses.

The vapor barrier material will fully take over the functions that will ensure the reliability and long service life of your home and industrial thermal insulation.

Every modern building cannot exist without an insulating layer. However, this layer itself requires protection. Vapor barrier materials come to the rescue, for example, Izospan A.

Initially, we will determine whether vapor barrier is important for walls and roofs? Undoubtedly. It will allow you to preserve the insulation of the roof and walls. Waterproofing is used on ceilings and partitions that are exposed to all kinds of climatic changes.

There are the following types of vapor barrier materials:

Standard film... It helps to protect against condensation that can appear on the inner surface of walls, roofs, insulation.
Membrane film coating... These materials remove excess moisture and fumes from the premises. In addition, there is a subspecies of it, which has the property of variable vapor permeability, which increases in proportion to humidity.
Foil with aluminum coating... It performs the functions of steam and heat insulation due to its reflective properties.
Roof membrane... Resistant to temperature extremes and ultraviolet radiation. Differs in high indicators of strength.

Izospan A and "what it is eaten with"

Izospan is an innovative building material that shows itself perfectly in the construction of many modern buildings. Excellent protection of insulation and structures from climatic influences - these are the main qualities that provide Izospan with authority in the construction business.

The technical features of Izospan A vapor barrier include:

Material strength;
Elasticity;
Environmental safety;
High protection against mechanical stress.

Izospan is divided into four types: A, B, C, D. In this article, focus on the first variation of this product.

Group A films are used to protect the outside of the premises.

The letter "A" on the material means that we are dealing with an ordinary film of this group, without any modifications. The technical characteristics of Izospan AM and AS differ in that they are made of three layers, which makes it possible to increase the level of protection of buildings. In addition, fire-resistant films are also present in this group of materials.

Izospan A with OZD (with fire retardants) is a waterproofing film that not only protects against the effects of air masses, but also against accidental fires (during welding, with careless handling of fire).

Izospan A is used as a kind of membrane, which is caused by the waterproofing properties of the material. This film protects the roof, facades and walls of any type of premises. Due to its wind and moisture protection function, this film will help keep the insulation in excellent condition for a long time. The film itself has been on the market for about 12 years, and has many positive reviews.

The use of Izospan is possible at all stages of construction. It will perfectly protect the roof, which is constantly exposed to warm and cold air masses.

Izospan A - technical characteristics

Despite the fact that Izospan is divided into several categories, the latter are also divided into several modifications. For example, the following is the difference between the individual variations of Izospan A: Izospan A (density 110 g / m²), Izospan AM (density 90 g / m²), Izospan AS (density 115 g / m²), Izospan AQ proff (density 120 g / m²).

Vapor barrier Izospan A, the technical characteristics of which are indicated by the manufacturer:

Material tensile strength: 190/140 millimeters;
Stability when exposed to ultraviolet radiation: 3-4 months;
Water resistance: 300 mm;
Water vapor permeability: not less than 2000.

Instructions for use Izospan A

Instructions for the use of this material begins with the question of many builders: "Which side of the insulation should Izospan A be laid on?"

The Izospan A vapor barrier is mounted from the outside of the insulation.

Before starting work on the processing of walls and roofs with foil, you need to make sure that the following tools are prepared:

metal profile and wooden slats;
self-tapping screws;
to fix individual areas, a construction stapler and tape may be required;
scissors for cutting the coating;
the required amount of vapor barrier, calculated as the sum of the area of the surface to be coated and overlaps of 15 cm on each side;

When installing Izospan A vapor barrier on an insulated roof, the material is cut into wide strips and overlapped. The smooth surface of the vapor trap must remain outside. Installation of Izospan A should be started from the bottom of the roof. Izospan should not be allowed to come into contact with the insulation, as this can significantly reduce the waterproofing properties of the material.

Pay attention to whether swelling occurs during installation. This can create noise during strong gusts of wind.

Izospan A is fastened with rails using self-tapping screws. Leave 5 centimeters of free space between the sides of the insulator.

If you use Izospan A to create a wind and hydro barrier, then we would recommend that you supplement the protection with a vapor barrier. Izospan B is perfect for this. Izospan B has two layers and is used to preserve surfaces:

Sloped roof;
Internal walls;
Frame walls;
Attic, basement floors.

Installation diagram depending on the purpose:

Non-insulated and sloped roof: main structure - vapor barrier layer - wooden flooring;
Attic: ceiling - vapor barrier - insulation - slats - beam;
Concrete floor: base - screed - insulating film - finishing layer.

It is worth noting that it is necessary to strictly observe all the subtleties of the operation of this material, so as not to be disappointed after. Take into account what exactly you insulate: insulation of walls, roofs, or it is a carriage or panel sheathing. These aspects can create certain subtleties in the installation.

Positive and negative aspects of Izospan vapor barrier

Like everything in this world, Izospan vapor barrier has not only positive aspects, but also negative ones. Let's start, as is customary, with the good. The advantages of Izospan waterproofing include:

It is a highly durable material;
The service life is over 50 years;
Resistance to climatic influences of various kinds: evaporation, wind, precipitation;
Safety and environmental friendliness;
The use of Izospan A does not cause unnecessary difficulties during installation.

As for the negative qualities, then this includes only the fact that the material is flammable. However, we have already mentioned Izospan A with OZD, which eliminates this problem.

How important is vapor barrier for walls and roofs?

Vapor barrier is a necessary thing for any buildings, and they tried to tell about it at the beginning of the material. Membrane Izospan A is an easy and inexpensive solution to this issue, which will ensure the safety of your walls, roof, and insulation. Many people underestimate waterproofing, and this despite the fact that it significantly insulates the room. In addition, they protect the insulation, thus avoiding unnecessary costs for sudden repairs.

Izospan A, whose characteristics are universal, is suitable in any situations related to vapor barrier. A wide range of modifications will allow you to purchase a film according to the requirements that arise during the repair work.

Reading time ≈ 4 minutes

Modern construction requires innovative integrated approaches at all stages, including the arrangement of wind and vapor control. Reliable protection of the structure from wind and moisture is impossible without materials belonging to brands well-known in the construction world. Izospan is one of the new generation building materials used at construction sites throughout the country.

What is Izospan?

A person, for the first time faced with the construction of any structure, begins to analyze the building materials on the market. Questions arise about Izospan: what is it, what is it for, what are its features?

Izospan vapor barrier is currently represented by a fairly wide range of films and membranes. They are designed to increase the life of thermal insulation in various types of buildings. At the moment there are more than 14 of them. All brands can be divided into 4 large groups: A, B, C, D. They include many varieties, each of which has its own characteristics.

Applications

All varieties of this building material are designed to isolate structural elements from moisture, wind or steam. It is used to protect all structural elements: roofs and facades, walls and floors, floors. Izospan's properties allow it to be used both in small-scale construction and on large construction projects. The specific scope of application depends on the variety.

Application Izospana A makes it possible to protect the internal parts of structures and thermal insulation from moisture, excluding the accumulation of condensate. These membranes are impervious to moisture and wind on one side, and the other side allows you to remove water vapor. It is mounted on the outside of the insulating elements. How this is done can be seen in the photo and video.

main feature Izospana B- vapor permeability. The structure of the coating differs depending on its purpose. The side that will be mounted to the inner side of the thermal insulation is smooth. And the part that will face the room has the smallest villi. These fibers will retain moisture. It is used to protect interior walls, insulated roofs, floors, interfloor or attic floors.

Reviews indicate that Izospan S in many ways it is similar to the previous version, but it is more reliable. Therefore, it has a higher price. It is based on an ultra-dense polypropylene sheet, capable of effectively protecting structural elements from capillary moisture, steam, condensate. This type of product is used to protect "cold" type roofs, frame walls, floors in wet rooms. This material is able to insulate building structures from the negative effects of the atmosphere, even from snow in places where roofing elements do not fit tightly.

Specifications Izospana D allow us to classify it as a universal variety, capable of protecting from both internal and external influences. It is used in the arrangement of flat and pitched non-insulated roofs, floors, foundations, basement floors. Differs in special durability, UV resistance.

Technical characteristics of Izospan

Vapor-permeable waterproof and windproof Izospan membranes:

Vapor-permeable waterproof and windproof Izospan membranes with fire protection:

Izospan vapor barrier waterproofing films:

Izospan vapor-proof reflective heat-insulating, waterproofing and vapor-insulating materials:

Reflective insulation Izospan on gas-foamed polyethylene foam NPE:

Technical characteristics of Izospan mounting tapes:

Features of the new varieties

Relatively new developments are such varieties as Rs and RM... The difference between these films is that they are reinforced with a polypropylene mesh. This makes it possible not only to serve as protection against steam, moisture, but also to withstand the breaking stress.

Stamp materials FS, FD, FB and Fx supplemented by the ability to use infrared radiation to enhance thermal insulation. This is a great opportunity to develop energy conservation. But they have drawbacks. These varieties do not provide for the passage of steam, so they can be installed exclusively in rooms with mechanical ventilation.