Technical characteristics of isospan materials. Vapor and moisture insulation Izospan - application and installation method. Technical characteristics and types

is a line of polypropylene nonwoven materials designed for vapor and waterproofing of structures.

Izospan protects structural elements and insulation from:

rain, snow and wind;
moisture generated inside the building;

Isospan is used in structures:

roofs;
insulated walls;
attic floor;
floors on a concrete base;

The technology for manufacturing non-woven fabric is fully automated. But at the same time, quality control is mandatory at every stage.

Izospan has a hygienic and fire safety certificate. Also, the products have been tested for compliance building regulations and GOST standards. As a result, a GOSTSTROY certificate was issued for it. Izospan has no analogues among similar domestically produced products.

Specifications

Characteristics of isospan B,C,D,DM:

When choosing vapor barrier materials, you need to pay attention to the following parameters:

Vapor permeability.
Strength.
Density.
Water resistance.
UV stability.

Isospan A has the highest vapor permeability (3000 g/m2/day), but it has the lowest water resistance (330 mm water column), which makes it possible to use it only on roofs with a slope angle greater than 35°. But nothing prevents you from using this material in .

Izospan AS and AD have a vapor permeability coefficient of 1000 and 1500 g/m 2 /day, respectively, but they are distinguished by their water resistance indicator - 1000 mm water column. As a result, they have become the main materials used for roof insulation.

If it is expected that the roof will remain uncoated for some period of time, it is necessary to use isospan AQ proff. It alone is UV stable for 12 months.

The best tensile load indicator for isospan D is 1068/890 N/5cm, but it has the most low vapor permeability– 3.7 g/m2/day. This allows the material to be used as a temporary roof for 3-4 months.

Isospan B has a vapor permeability of 22 g/m2/day, and a tensile strength of only 130/170 N/5cm. In this regard, it is necessary to involve qualified specialists in its installation and not leave the material in the open air.

Izospan C is an intermediate option.

Peculiarities

Polypropylene film with a smooth top and fleecy bottom side. Villi are necessary to retain condensing moisture and prevent it from rolling onto Decoration Materials. Installed in front of the insulation in the following structures:
- insulated roof;
- walls;
- floors;
Laminated fabric with a smooth and fleecy side. Thanks to the increased density, the scope of application of this material expands. It is used:
- On unheated roofs, as moisture insulation.
- In ceilings (including above basements and attics), as a vapor barrier.
- In floor structures.
- IN concrete screed, like a water barrier.
Polypropylene fabric laminated with film. Izospan D is widely used as:
- Additional moisture insulation on unheated roofs.
- Vapor barriers for any structures that need protection from water vapor.
- Waterproofing layer in the screed.
- Temporary roofing.
Membranes marked A, AS, AM, AQ proff protect the insulation from getting wet, weathering and remove condensation from the roofing or wall pie into the drainage system. Benefits of use:
- Remaining moisture trapped in the insulation layer from the room is easily removed.
- The likelihood of precipitation penetrating the heat-insulating material is minimized.
- It becomes impossible to weather the mineral wool.
Membrane A. The polypropylene membrane has a smooth water-repellent side and a rough side that retains condensation. This type of membrane has a low coefficient of water resistance, so its main purpose is to protect the insulation on the facade.
Izospan AS, AM, AQ proff. AS, AM are a membrane made of vapor-permeable material and a dense airtight substrate. Used for protection:
- Frame type walls.
- Ventilated facades.
- Insulated roof.
Heat-reflecting vapor barriers FB, FD, FS, FX trap the smallest particles of moisture and radiant energy in the room. Advantages of using thermal and waterproofing reflective films:
- Heat loss through building envelopes is reduced.
- Heating costs are reduced.
- Eliminates the possibility of mold formation in damp rooms;
Vapor barrier FB. Izospan FB is made from kraft paper, which is covered with a layer of metallized lavsan. Due to the fact that the material is environmentally friendly and can withstand temperatures up to + 120 ° C, it is used to insulate walls, roofs and saunas.
Vapor barrier FD, FS. Izospan FD, FS is a polypropylene film reinforced with a metallized layer. In isospan FD, a vapor barrier film of grade D is used as the base layer, and in FS, grade B is used. Manufacturers recommend using the described vapor barrier for interior decoration:
- steam rooms;
- attic;
- as a heat-reflecting screen;
This material is foamed polyethylene, backed with metallized film. Polyethylene with a layer of bubbles is an excellent heat and sound insulator, and the metallized layer prevents heat leakage and retains steam and water. Izospan FX is the most cost-effective, safe and durable vapor, noise and heat insulator. Its disadvantage is that the maximum operating temperature is + 90°C, which makes it impossible to use it in steam rooms. It is actively used as:
- Substrates for installing heated floors.
- Reflective screen for .
- Insulation on attic roofs in tandem with classic materials.

Reflective films can be used to insulate walls and ceilings only in rooms with forced ventilation, since these materials have zero vapor permeability.

Pros, cons and varieties

Heat Reflective Vapor Barrier Film

Advantages:

Environmental Safety.
A wide range of.
Reasonable price.
Reliability and durability.
Durability to mold formation.

Flaws:

Low durability to the fire.
Performs its functions only when installed correctly.

According to purpose, the material is divided into three types:

Steam and moisture insulation films.
Moisture and windproof vapor-permeable membranes.
Heat reflective vapor barrier films.

The first type includes vapor barrier films of grades C, B, D, which protect the insulation layer from moisture evaporating out through the enclosing structures.

Advantages of using vapor barrier film:

Increased service life insulation.
Reduces the likelihood of condensation formation and contamination of structures by fungus and mold.
Eliminates the possibility of entry into the premises volatile insulation particles.

Installation

Installation diagram of isospan on an insulated roof

To lay the material you will need:

roulette;
hammer;
construction stapler;
nails;
wooden slats;
scotch;

Laying isospan on the roof:

Insulation of the roof begins with fixing the vapor barrier film(B, C, D) to the supporting frame or to the rough sheathing.
Secure the material with staples or galvanized nails. For additional sealing, the seams are secured with special isospan SL or KL tape.
The panels are rolled out horizontally in the direction from bottom to top. An overlap of 15-18 mm is made between adjacent canvases.
During installation, you need to ensure that the film adheres tightly to the insulation.
On top of thermal insulation A, AS, AM, AQ proff.
Izospan A is secured to the rafters with antiseptic counters nails or screws, so that a gap of 5 mm is formed. Izospan AS, AM, AQ proff, on the contrary, should fit tightly to the insulation. Therefore, it is attached to the rafters with staples or galvanized nails.
Installation begins from the bottom of the slopes. Along the overhang of the slope, the membrane is inserted into the gutter. The canvas is rolled out horizontally, making sure that there are no distortions. It is important to secure the material tightly. Allowable sagging is no more than 2 cm. Horizontally, the canvases should overlap each other by 15 cm, and vertically by 20 cm.
So that the condensation can evaporate, ventilation holes are provided in the ridge area and in the lower part of the roof.
On top of the vapor barrier membrane install the sheathing.

Izospan will perform its function only if it is installed correctly. The fleecy side of the material should face the room, and the smooth side should face the insulation.

It is worth paying attention to the fact that isospan A is the most available material, but its installation due to the need to create ventilation gap is more expensive than the cost of more durable and durable analogues.

Wall insulation:

For ventilated facades isospan A and AM are suitable. In cases where there is a risk of fire, material with OZD is used.
The membrane is attached over the insulation with the smooth side facing out. The panels are rolled out so that there is an overlap of 10 cm.
The isospan is secured to the building frame using staples. On top of the vapor-permeable membrane, counter-rails are fixed vertically, onto which facing material. To prevent the effect of acoustic pops from appearing during operation, there should be no loose or sagging areas along the entire length of the canvas.
To remove moisture, the design must provide a ventilation gap in the lower part of the casing. Izospan is laid so that the moisture accumulated under the casing flows into the drainage system.

Reading time ≈ 4 minutes

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

What is Izospan?

When a person first encounters the construction of any structure, he begins to analyze the building materials on the market. Questions also arise about Izospan: what is it, why is it needed, what are its features?

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

Areas of application

All varieties of this building material designed to insulate structural elements from moisture, wind or steam. It is used to protect all structural elements: roofs and facades, walls and floors, ceilings. The properties of Izospan allow it to be used both in small-scale construction and on large construction sites. 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, eliminating the accumulation of condensation. On one side, these membranes are impenetrable to moisture and wind, and the other side allows the removal of water vapor. It is mounted with outside insulating elements. You can see how this is done in the photo and video.

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

Reviews indicate that Izospan S is in many ways similar to the previous version, but is more reliable. Therefore it has a higher price. It is based on a super-dense polypropylene sheet that can effectively protect structural elements from capillary moisture, steam, and condensation. This type of product is used to protect “cold” type roofs, frame walls, floors in wet areas. This material is able to isolate building structures from the negative effects of the atmosphere, even from snow in places where roofing elements are not tightly joined.

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

Technical characteristics of Izospan

Vapor-permeable waterproof and windproof membranes Izospan:

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

Vapor barrier waterproofing films Izospan:

Vapor-tight reflective thermal insulation, waterproofing and vapor barrier materials Izospan:

Reflective insulation Izospan on gas-foamed polyethylene foam NPE:

Technical characteristics of Izospan mounting tapes:

Features of new varieties

Relatively new developments are varieties such as R.S. And R.M.. The difference between these films is that they are reinforced with polypropylene mesh. This makes it possible not only to serve as protection against steam and moisture, but also to withstand tensile 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 saving. But they have drawbacks. These varieties do not allow for the passage of steam, so they can only be installed in rooms with mechanical ventilation.

Izospan is a film-type insulating material. It ensures the preservation of the original qualities of thermal insulation and is used in a variety of fields. Therefore, it is worth considering in detail its advantages and disadvantages, and also learn how to properly install the material on walls, roofs, and foundations. This and much more will be discussed further.

Types and their properties

Thermal insulation keeps the house warm when it's cold, adds comfort when it's hot, and prevents the rooms from blowing out. However, the thermal insulation material itself needs protection from negative atmospheric phenomena. Such protection is provided by a polypropylene membrane - Izospan.

Such a fabric will successfully play the role of protection for thermal insulation. Despite its simplicity, this film material has differences: type A, type B, type C, type F, others. Each type has differences in technical characteristics.

The film complies with construction GOST and has the following general qualities, which are confirmed by the manufacturer:

thermal conductivity;
density;
waterproof;
elasticity;
resistance to negative influences;
UV resistance;
environmental Safety;
Fire safety.

The properties of Izospan correspond to the classification of products. Classification is the letter indices that manufacturers use to designate the material they produce. Sometimes on sold samples you can see a combination of letter indices. Each new designation expands the possibilities of using the material. Performance any Izospan is high.

The material is widely used in the construction field. It is used for vapor barrier of both residential and industrial buildings. The properties of Izospan comply with sanitary and epidemiological standards. The material is supplied with fire safety and technical certificates.

In the production of Izospan, polypropylene is used. The base is melted down and then rolled out to a certain thickness using special rollers. The material turns out to be of a homogeneous structure and dense. The material is considered double-sided, and both surfaces of Izospan perform different functions.

If you lay the vapor barrier correctly, all the moisture will remain on the film, and it will condense on it. While on the film, the moisture will evaporate and will not harm the structures.

Today Izospan has received recognition as efficient material insulation of attics, garages, walls of private houses.

The properties of the material will protect the metal coating from corrosion and the wood from rotting. The material prevents the penetration of air flows and will not release heat outside. When choosing products, you should focus on the quality of the main modifications, each of which has its own characteristic features.

Izospan A plays the role of an excellent waterproofing agent. This modification also protects the insulation well from wind and water, thereby increasing its service life. Izospan A is suitable as an insulator for any premises, as it is resistant to mechanical stress and neutral to mold and fungi. The film stretches longitudinally by 19 cm and crosswise by 14 cm. The material is used as an additional barrier and is attached to outside insulation. Wooden slats and nails are used to secure the membrane.

Izospan B– an excellent vapor barrier that will eliminate increased humidity indoors. Double-layer Izospan B can be used on roofs, internal and external walls, on the floors of the attic. The material stretches longitudinally by 13 cm, and transversely by 10.7 cm. Unlike the previous modification, Izospan V is installed inside the insulation, secured with an overlap, taking into account the presence free space between layers.
Izospan S– two-layer, known as good protection for roofs, frame walls, and concrete floors. The membrane is fixed to the insulation, overlapping, wooden slats. To insulate the floor, it is laid directly on the surface.
Izospan D– very durable, known as roofing protection in terms of waterproofing. In addition to roofs, Izospan D is used to cover concrete floors at the level of basement floors. The material is mounted in horizontal strips and secured with wooden slats. In addition to the main modifications, there are additional varieties of Izospan, the purpose of which is worth considering in more detail.

Purpose

The variety of materials in the Izospan line is wide. In addition to basic materials, you can find related products on sale, namely adhesive tapes and adhesive tapes.

If connecting tape SL Fix the hydro- and vapor barrier strips together to ensure better tightness of the connecting seams. Installation with connecting tape is carried out at moderate temperature conditions, and the surfaces to be joined must be dry and clean.
FL tape You can connect the canvases and repair minor damage. This is a metallized tape with excellent durability. The wear and tear strength of this tape is also high.

Unilateral Scotch tape ML characterized by high-quality adhesion. The Proff modification material proved to be especially effective difficult cases, as it helps in connection uneven surfaces, different reasons, for example, bricks and concrete, porous surfaces. Izospan ML allows you to glue plywood, wood and plaster surfaces together. The material ensures better connection of pipes and windows to window openings.
Izospan KL allows you to glue two panels together. Well seals the overlap points of the material. Izospan KL is glued to the upper edge of the insulated panel, paper side up. It is pressed against the bottom sheet with a slight movement of the hand at a certain distance from the edge. Then the paper side is removed from the tape and both edges are pressed against each other. Installation of the material is carried out on clean, dry surfaces at positive temperatures. environment. The basis of the adhesive layer is water-dispersed modified acrylic. Izospan KL does not contain solvents.

Waterproofing is applied according to general instructions for the ceiling, walls, and subfloor.

The work associated with laying the membrane is simple and does not require special qualifications.

Regardless of the installation location, the smooth surface of the film should always face the thermal insulation. Incorrectly laid sheets will not add to the effectiveness of insulation, and the structure will not achieve a vapor barrier effect. Each type of product is accompanied by instructions. Its strict observance will not allow you to make mistakes in your work.

Lay the material tightly to the surface with a slight edge in the corners. Place the canvases with an overlap, the size of which should be about 15 cm. If the membrane is attached to wood components, you can use a furniture or construction stapler. Seal the resulting seams with tape or tape.
If a reflective film is installed, then it must be installed with the metallized side facing the inside of the room. Laying must be done without overlap, end-to-end. Cover the joints with adhesive tape.
If you are performing a vapor barrier on an insulated roof, then lay the film from below. Lay out the appropriate canvas horizontally, tightly to the rafters, avoiding windage. Wooden slats 4 x 5 cm wide, treated with an antiseptic, are suitable as film holders. This lathing will ensure free evaporation of condensate.

General form system will be as follows:

interior decoration;
Izospan B, C;
rafters;
insulation;
waterproof membrane;
roof covering.

Vapor barrier internal partitions at home is needed if the interior floors are frame.

In this case, Izospan V can be installed on any side of the wall. A stapler or special nails are used for the work. Izospan should be laid horizontally, starting from the bottom. Izospan is fixed with slats, and Izospan A can be mounted on the other side of the wall. General form:

finishing;
rail;
vapor barrier;
frame;
insulation;
moisture protection;
rail;
finishing.

Izospan can be used as a vapor barrier for interfloor ceilings.

The material is laid on the rough base of the ceiling with the rough side down. If the membrane is spread on the floor joists, above the insulating layer, then the smooth surface should be laid upward. Clearances required:

Between the insulation layer and the vapor barrier layer.
Between floor finishing and vapor barrier.
Between the ceiling finish and Izospan.

General form:

ceiling finishing;
slats;
vapor barrier;
rough floor construction;
beams;
insulation;
vapor barrier;
slats;
floor finishing.

Like any building material, Izospan has its pros and cons. Let's take a closer look at the technical advantages and disadvantages, as well as consumer reviews.

Advantages and disadvantages

Main advantages of the material:

Lasting. Izospan does not tear during installation and has a long service life.
Reliable. When laying the material, other materials will remain dry in the most negative conditions.
Universal . The material can be used on any type of structure when installing any insulation.
Environmentally friendly. The film does not highlight harmful substances in atmosphere.
Practical.
Fireproof.
Convenient to install.

Izospan perfectly ventilates accumulating condensate, significantly improving the characteristics of the insulation. The walls remain dry, so fungi and mold do not appear on them.

Among the disadvantages of Izospan, it is worth noting the need for mandatory treatment of wooden structures with antiseptic agents.

There are other disadvantages:

if the insulation technology is violated, condensation may form at the joints of the material;
vapor barrier rolls cannot be installed immediately; they must be kept in a warm room;
the vapor barrier process is impossible if phenomena such as fog or rain are observed;
when installing Izospan on concrete surface basement, it is recommended to warm it up using heat guns.

Consumer reviews of the material are generally positive.

For example, users write about the qualities of Izospan S that work with it can be carried out simultaneously with laying the cake. The material allows you to save on installing the sheathing. The thermal insulation is in good condition after two years. There is no heat loss or appearance of wet spots.

Another user notes characteristics of Izospan AS. One of the advantages is the high speed of installation. The material also has disadvantages - it is thin, the canvas breaks during fixation to the frame. In addition, for this type of material it is difficult to determine right side styling, since both of them are smooth.
In contrast to this, FB series variant easier to determine. Users note good roughness on the correct reflective side. However, the material is expensive, since its width is non-standard. The investment pays off in future use.
Sides of Izospan B are also easy to identify. The smooth side of the material must be mounted to the insulation. The vapor permeability of the material is high, the cost is quite justified.

Features of use

The sides differ in appearance and to the touch: one is smooth, the other is rough. It is believed that Izospan should be laid with the smooth side facing the insulation. The rough side of the film should touch the insulated vertical. The roughness of Izospan effectively absorbs condensation. Without a vapor barrier, condensation will always flow down to the floor structures. Condensation harms both wood and concrete substrates. Let's look at some special types of Izospan vapor barrier in more detail.

FB series vapor barrier used in interfloor wooden floor, for walls inside steam rooms, saunas. The FB series is based on kraft paper and metallized lavsan. The features of structured Izospan make it possible to effectively reflect thermal energy. There is no need to attach the FB series to the outside, since the material perfectly withstands temperatures with dry steam up to 140 degrees.

The strength characteristics of the material are excellent, it is environmentally friendly.

The use of Izospan can reduce heat losses in the steam room. The same vapor barrier will prevent dampness from entering the wall structure.

Izospan FB roll sizes:

width – 1.2 m;
length – 35 m.

The material can be used in the temperature range from -60... +140 degrees. The technical characteristics of the material comply with GOST. Performance may be degraded by exposure to UV radiation.

The materials of the series: FD, FS, FX have similar characteristics. These are vapor-permeable membranes that prevent water vapor from escaping into the atmosphere. The materials are waterproof, water-resistant, and have an energy-saving effect. The materials are able to reflect infrared thermal radiation and protect floors from steam. The use of vapor and waterproofing allows you to reduce the period of warming up the room and provides significant savings on heating the room.

Izospan AS series it is at the same time waterproofing, vapor barrier, and windproofing. The membrane has three layers, protects insulation, roofing elements, and walls from gusts of wind, moisture from the external environment. Izospan AS series can be mounted on insulation without a ventilation gap. As a result of using the series, expenses for lathing between the insulation and Izospan are eliminated.

The membrane is diffusion and has shown good water resistance and hydrostability. The use of this film has a positive effect on increasing the service life of the entire structure.

The material is produced in rolls 1.6 m wide and 70 m long. The effects of UV radiation, as in the previous version, are reduced quality characteristics material. Primordial technical qualities comply with GOST.

The AM series membrane has similar characteristics. The material combines the characteristics of water resistance and vapor barrier.

The scope is quite wide:

insulated sloping roofs;
frame type walls;
walls with external insulation;
ventilated facade;
attic floor;
internal verticals.

Separately, series A film with OZD can be used for ventilated facades. This vapor-permeable membrane will protect the façade elements from wind and precipitation. The film will not allow vapors to escape from any type of insulating material. Film width 1.6 m, roll length 70 m.

Separately, the RS series material can be used as a roof vapor barrier. The film is suitable for non-insulated structures. She will protect wooden elements from the action of condensation, from penetrating atmospheric phenomena. How is a vapor barrier suitable for flat designs roofs

Another type of film that is suitable for uninsulated roofs is Izospan RM. Three-layer material with reinforced mesh made of polypropylene. In addition to protecting roof structures, it can be used to protect genitals. concrete floors. In this case, it acts as a waterproofing layer.

Which to choose?

If a material is selected as a vapor barrier for a roof, then the following points are taken into account:

temperature phenomena at the location of the building;
purpose of the roof (operational, non-exploitable);
roofing pie design.

The vapor barrier layer, first of all, must be completely sealed. This quality is very important for such materials. Self-adhesive connecting tape or tape is not in vain recommended for sealing seams.

If a vapor barrier is chosen for a bathhouse, it is desirable to minimize the possibility of fire, therefore FD, FX, FL Termo, foil vapor barrier are the most suitable options for such structures.

It is important to take into account that the bottom layer of the roofing cake must be non-flammable. The fire resistance of a bathhouse roof will be increased if the vapor barrier film is laid so that its edges extend beyond the insulation. Experts advise gluing the membrane to the wall and additionally securing it with galvanized strips.

Unlike roofing felt and glassine, Izospan is a modern material of a new generation. The diffusion film has lower vapor permeability in comparison with the membrane discussed in this article: it can be used for both hard and soft roofs.

Diffusion membranes usually consist of several layers. The product combines polypropylene fabric and polyethylene laminate. The cost of this type of vapor barrier is quite high.

However, other analogues also have advantages and disadvantages. For example, types such as roofing felt and glassine, have low cost. However, today few people will use roofing felt for vapor barrier of the roof of a residential building. This is a material for household use. Glassine is also not used as the main hydro- and vapor barrier.

The utilization rate of bitumen membranes is also low. This material is used to vaporize concrete roofs. This type is mounted by heating and then gluing to the base. The main disadvantage of the material is its heavy weight.

Almost all of the above types of materials are combined with Izospan, which is presented on the market in 14 varieties. Class A of Izospan alone combines several film options, for example, AS, AM, with different strength, density and vapor transmission ability.

RS series Izospan is unique, universal products, which will completely replace all materials together. The material is indispensable in many construction fields, as it has increased strength and does not harm interior decoration. The sealing reinforcing mesh made of polypropylene will prevent the formation of harmful fungi and mold, as it creates an additional protective layer for both the material and the structures.

The length, thickness, weight, and number of meters per roll vary depending on the class of the material. The division looks like this:

First grade

Izospan A

width, m - 1.6
size, m² - 35, 70

Second class

Izospan B

width, m - 1.6
size, m² - 35, 70

Izospan S

width, m - 1.6
size, m² - 35, 70

Izospan D

width, m - 1.6
size, m² - 35, 70

Izospan DM

width, m - 1.6
size, m² - 70

Third class

Izospan FS

width, m - 1.2
size, m² - 70

width, m - 1.2
size, m² - 35

width, m - 1.2
size, m² - 70

release:
width, m - 1.2
size, m² - 36

The indicators of different manufacturers are generally the same. About the most famous suppliers of this building material and user reviews, we’ll talk in more detail.

Well-known manufacturers and reviews

Positive reviews received by the following manufacturers vapor barrier films, which can be installed indoors:

Ondutis;
Izospan B;
Izospan D;
Delta Reflex;
Delta Luxx;
Tyvek AirGuardSD5;
Tyvek AirGuard Reflective;
Stroybond V;
Izobond V.

Well-known manufacturers of water vapor barrier, which are also characterized by positive side and became widespread as temporary roofing:

Ondutis RV;
Ondutis RS;
Izospan D;
Stroybond D;
Isobond D.

Ondutis a100;
Ondutis a120;
Izospan A;
Izospan AM;
Izospan AS;
Delta Vent N;
Tyvek soft;
Tyvek solid;
Stroibond A.

It is widely believed that the properties of hydro-vapor barrier films are better than those of simple vapor barrier films. insulating materials. Users note the durability of Italian reflective films.

Laying method

It is necessary to lay any vapor barrier on any type of roof after laying the insulation. It can be placed under corrugated sheets.
Waterproofing can be laid in any direction.
If the material is laid along the rafters, the overlap should be directly at the level of the rafters. At these same points of contact, the material must be carefully fixed.
Where it comes into contact with water pipes that may pass through the roof, the membrane is folded down, wrapped around the pipes and carefully taped.
Some types of materials require mandatory air gap. To create this space, thin wooden planks are enough. They are located at a distance of about 50 cm from each other.

General rules Installation of the film requires strict adherence to the instructions for use. Laying technology on vertical and inclined surfaces should be done from top to bottom. The film strips should be laid horizontally correctly. The film must be overlapped by at least 15 cm. The joints must be taped with adhesive tape for reliability. If the wall is finished with plasterboard, the film should be laid with the rough side facing the plasterboard and the smooth side facing the insulation.

When laying a vapor barrier on the roof Izospan can be fixed directly to the rafters. For fixing, bars or thin clamping strips are suitable. Finishing: plasterboard, plywood, lining, etc., mounted on top of the vapor barrier. If bars were used for fixation, the trim can be mounted directly on them. A gap forms between the film and the finish. The ventilation gap will ensure better drying of condensate.
If Izospan used for insulating walls indoors, then first you need to secure the bars vertically. If plasterboard is used as finishing cladding, then it will do. metal carcass. After this, insulation is installed: mineral wool or polystyrene foam. A vapor barrier is attached to the bars using slats or a stapler. The next step is to install the finishing touches.

If the walls are insulated from the outside, the procedure should be reversed. First you need a sheathing of bars. Then a vapor barrier is attached to this structure. Next comes the heat insulator, and on top of it is a waterproofing film. The final stage will be the installation of finishing.
If a vapor barrier is used for the floor, first you need to lay waterproofing between the joists. Then the insulation is installed. A vapor barrier is mounted on top of the insulation. Bars are suitable for fastening it. Floorboards are installed on top of the vapor barrier.
When installing an interfloor ceiling the previous steps are practically repeated. If necessary, a vapor barrier can also be installed on the ceiling from below. Ceiling finishing mounted on top of the vapor barrier.

If the vapor barrier is damaged during installation any structural elements or torn areas must be repaired. To do this, you can use adhesive tapes or special glue. The material is very reliable in installation and is more expensive than conventional polyethylene film. However, the quality characteristics of Izospan significantly exceed the quality of the film.

The following tips will help you get the job done well.

When laying any vapor barrier materials, ensure the quality of the joints. If they are poorly glued, the ceiling usually sweats, and the effort from the work done is practically reduced to zero.
The easiest way to seal any hole in the membrane is with a special sizing tape at least 10 cm wide. A narrower tape will simply come off.
Leave folds of material 2-3 cm wide around windows and other openings, especially if the building is new. In this case, deformation reserve must be provided.
If a vapor barrier membrane is installed around skylights, then it must be protected from the inside with a special finish.
If the membrane needs to be fixed on a rough surface brickwork, wood, better to use adhesive compositions with acrylic or rubber base.
Polyurethane-based adhesive tapes are not recommended for use by specialists. It is believed that due to insufficient adhesiveness, they move away from the base over time.

For information on the use of Izospan, see the following video.

The process of choosing wind, hydro and vapor protection should be carried out with special care, since among large quantity manufacturers, you need to choose the material that turns out to be the most reliable. The membrane of the Izospan company has established itself as a high-quality product, the strength of which has been tested over the years. We will talk further about the features and subtleties of installing the Izospan membrane.

Membrane “Izospan” - features and general information

To create comfortable living conditions in the house and to improve the duration of its operation, care should be taken to install high-quality insulation. It will help protect the foundation, walls, floors and ceilings from the harmful effects of the environment.

Without the use of insulating materials, moisture, wind or condensation can destroy both the external and internal finishing of the building. In this case, it is recommended to use high-quality insulation, which Izospan materials can provide.

These products have been on the market for more than ten years and are in great demand in both consumer and professional construction. For the production of Izospan waterproofing materials, a special individual technical base is used. The quality of the products is carefully monitored by specialists from the development department.

“Izospan” materials that provide steam and moisture protection are distinguished by the availability of Certificates of Conformity and Fire Safety Certificates.

A wide variety of types and forms of Izospan materials allows you to choose exactly the type of insulation that the buyer needs.

Over the long period of time that the Izospan company has been in the modern construction market, products have appeared that are externally similar to the Izospan products, but have dubious quality and low specifications. To avoid counterfeiting when purchasing an Izospan membrane, you should adhere to the following rules:

all materials have a specialized branded sleeve and packaging; a special polyethylene sleeve is used for packaging the membrane, with branded colors and a special print;
Each of the rolls is equipped with instructions for use and an information leaflet that introduces other products of the company;
on the inner surface of the sleeve on which the material is located there is a stamp with the “HEXA” logo;
one of the ends of the roll has a logo indicating information about the batch, packer number and date of manufacture of the product;
All side sections of the roll are sealed with tape that has individual markings with the name of the material.

Advantages of using Izospan materials

Due to the presence of heat-reflecting characteristics, Izospan materials provide reliable protection of all types of buildings from wind and moisture.

Thanks to the use of “Izospan” vapor barrier, the risk of high humidity in attics, and with the help of heat-reflecting properties it is possible to provide reliable protection against the formation of condensation masses.

With the help of mounting connecting tapes it is possible to provide additional tightness of the fastening. In addition, the functions of the material are also added to provide additional wind protection for the building.

The scope of use of the Izospan membrane is quite wide and extends to internal and external insulation of walls, roofs, floors, ceilings, thereby ensuring the risk of condensation and damage to the finish.

It is possible to use Izospan insulation as a floor underlay. In this case, the materials reflect even infrared rays and direct the heat flow directly into the room.

The use of these materials allows you to provide reliable protection against:

exposure to high humidity;
formation of condensate masses;
hit by winds.

In addition, the functional features of the membranes make it possible to reduce the temperature load associated with seasonal temperature changes. Insulation can protect the insulation in the system:

façade purposes;
roofing structures;
walls and interfloor ceilings;
floor coverings.

In addition, the use of Izospan materials allows you to create favorable and comfortable living conditions indoors.

In relation to the main functional features of materials presented on the modern construction market, Izospan products are characterized by:

ensuring wind resistance and protection of roofing systems;
vapor barrier of walls and ceilings;
connecting joints of materials using connecting tapes.

“Izospan” characteristics and variety of material

We invite you to explore the entire range of products produced by the Izospan company:

1. Membranes or films for waterproofing vapor and wind protection purposes.

Hydro- and wind protection is manufactured to provide protection for the elements of the insulation system and structural elements buildings from the formation of condensation, winds and moisture that comes from the environment.

At the same time, the outer side of this protection has a vapor-permeable shell, with the help of which all water vapor and accumulations are evaporated.

The use of these materials is widespread in roofing and wall structures, as well as in ventilated facades. Due to the combination of high water resistance and vapor permeability, these membranes are in high demand among consumers.

2. Films for vapor barrier and waterproofing purposes.

These materials protect the insulation on walls, roofs and ceilings from the ingress of steam and the formation of condensation, which significantly reduces the quality of insulation.

With the help of vapor and waterproofing films, the thermal insulation of the insulation is preserved and the service life of the entire structure is extended. In addition, condensation does not collect inside the walls, mold and mildew do not form, and corrosion does not form on metal elements.

3. Heat-vapor-waterproofing of a reflective type, which has an energy-saving effect.

These materials have a metallized surface that reflects infrared rays and provides reliable protection of the insulation from steam inside and from moisture from the outside. The use of these materials allows you to save energy for heating the room in winter.

4. The use of connecting tapes allows for reliable joining of the material for a long time.

Types of Izospan membranes and their features

1. “Izospan Aqua Prof” - appears in the form of a professional split-layer protective membrane, which provides protection for the insulation and roofing system from wind, high humidity and condensation. The material is laid directly on insulation materials, there is no ventilation gap in this case. Thus, you will not need to spend money on arranging a special sheathing.

This material has high properties of vapor permeability, resistance to light and moisture. In addition, it is resistant to mechanical damage, and any weather is suitable for its installation.

Scope of material use:

surfaces of insulated and non-insulated sloping roofs;
arrangement of frame walls;
external wall insulation;
waterproofing of ventilated facades;
arrangement of attic floors.

The material consists of 100 percent polypropylene, it is capable of operating in temperatures ranging from -60 to + 75.

2. “Izospan AM” is a vapor-permeable membrane, which consists of three layers. Used to protect thermal insulation and elements of roofing and wall systems from moisture and condensation. The material has high moisture-repellent properties, but at the same time it is vapor-permeable, therefore increasing the service life of the building.

It is prohibited to use the material as any type of roofing finishing covering.

3. “Izospan AS” - has the form of a three-layer membrane, which is used to protect different parts buildings from moisture, wind and condensation. Among the advantages of the material are:

ease of installation and installation work;
high resistance to moisture;
high level strength before stretching and tearing;
high level of vapor permeability;
resistance to ultraviolet radiation;
environmental friendliness and safety of use;
ease of transportation, convenient shape and light weight.

4. “Izospan A” is a vapor-permeable membrane that protects the insulation and wall surfaces from atmospheric influences and wind. In addition, it helps remove steam from the interior of the room. The material is laid from the outside of the insulation onto the surface before carrying out external finishing works. Due to the use of a membrane, the quality of insulation improves and the service life of the entire building is extended.

Scope of use extends to:

surface of frame walls;
external surfaces of walls;
ventilated facades.

5. “Izospan fire-retardant action (OZA) A” is a new type of wind- and moisture-proof membrane that has fire-retardant additives. The use of a membrane of this type not only protects the building from wind, condensation and moisture, but also prevents accidental fire, which occurs in the following cases:

during welding work;
in the process of waterproofing the basement;
in other situations.

6. “Izospan AF” is a non-flammable membrane used in the process of waterproofing ventilated façade sections, insulation and other structural elements of a building. The material is based on the use of fiberglass, which is absolutely non-flammable.

7. “Izospan AF+” is a non-flammable membrane with enhanced characteristics, which is used for wind and waterproofing of building elements. In addition, the use of this material provides additional protection of the building from fire.

How to lay Izospan: features of membrane installation

When answering the question which side to put “Izospan” on, you should be extremely careful, since incorrect installation material will damage the integrity of the waterproofing system.

The membrane on one side has a layer that allows air to pass through, thereby eliminating condensation, while the other side is not capable of allowing moisture or wind to pass through.

We suggest that you familiarize yourself with the recommendations for installing Izospan AS and AM membranes. They are used to provide protection to roofing finishes from wind and moisture. The material is fastened directly to thermal insulation materials, the ventilation gap should not be observed. The smooth blue side of the material should be on the outside of the roof.

These types of membranes provide reliable protection of the building from precipitation, wind or roofing defects. In addition, the membrane improves the removal of moisture through the surface of the insulation.

These membranes are not used as primary or secondary roofing materials.

If a membrane is installed on an insulated roof, the insulation is cut and rolled directly onto it. It is better to start installation from the bottom of the roof. The minimum overlap is 150 mm. A construction stapler is used to fix the stretched material on the surface of the rafters.

Next, wooden antiseptic counter slats are attached to the material. They are fixed using nails or self-tapping screws. The vertical overlap or junction of two parts of the membrane is pressed with a counter-batten. In addition, sheathing is mounted on them for further finishing of the roof. There must be a ventilation gap between the outer part of the membrane and the roof covering, which will help remove condensation from the under-roof space. In addition, you need to worry about arranging a ventilation gap in the ridge part.

The membrane is fixed in a tense position, using the lower edge to ensure the bottom drain of condensate, which enters the drainage system.

Installation of Izospan A, AF membranes is carried out with a ventilation gap of 4-5 cm, on top of the insulation, rafters or sheathing.

If materials are laid on an insulated roof, then the material is rolled out and cut on the rafters. Installation is carried out by laying horizontal sheets overlapping, with their smooth side being on the outside. Minimum overlap 150 mm.

To fix the canvases, counter slats are also used, which are fixed with nails or self-tapping screws. The minimum sagging of the membrane is 2 cm. The material should not come into contact with insulation or solid wooden areas, as this negatively affects its functional activity.

Application of “Izospan” video:

Vapor barrier is used to protect various structures from moisture and condensation, as well as steam. Thanks to the use of appropriate materials, it will be possible to extend the durability of the structure and prevent the formation of fungus and mold. Many manufacturers produce special membrane films for this purpose. Thus, isospan vapor barrier is quite popular.

Technical characteristics and types

Vapor barrier isospan is highly waterproof membrane, installation of which can be carried out at any weather conditions. After vapor barrier, the building structure will last several times longer. At the same time, a comfortable microclimate will remain in the room.

In fact, isospan is not only a vapor barrier, but also a waterproofing agent. Accordingly, the material must be laid on roofs and in saunas. In other words, we're talking about about those cases when the room requires elevated temperature and high humidity levels. Although such a membrane will be quite expensive, it will become a truly indispensable element.

There are many types of vapor barriers on sale, which have their own advantages and features.

Izospan A – vapor-permeable membrane, protecting walls, roofs, facades and ceilings from condensation. At the same time, evaporation occurs inside the “pie”, so that the water does not damage the structure itself.
Izospan B is a two-layer universal vapor barrier, which is usually used only indoors. Using this material you can protect the roof, basement and attic walls. Izospan B can be used as insulation. This is explained by the fact that the material has a higher density.
Izospan S is a two-layer membrane with water vapor barrier characteristics. This material is used in attics and on uninsulated roofs.
Izospan D is a membrane that provides reliable vapor barrier any building structures. Material used in the construction process concrete foundations, plinths and interfloor ceilings.
Izospan AM is a high-strength material made of membrane film. Its special feature is protection against mechanical damage. It is customary to lay the material directly on the heat insulator, which will protect it from steam and condensation.

Other varieties

Less common types of vapor barriers can be found on sale.

Instructions for use of isospan

When using this material, specific modification must be taken into account. If we talk about isospan B, then it is used to insulate walls, roofs and ceilings. As a rule, the film is laid on top of the insulation. In this case, it is necessary to adhere to a certain sequence:

Thanks to this vapor barrier, you will be able to avoid the penetration of moisture or insulation particles into the room.

Izospan S differs significantly from other vapor barrier materials Possibility of use in the construction of roofs with a slope of less than 35˚. Thanks to such vapor barrier in unheated attics, optimal microclimate. On walls and ceilings ground floors there is no condensation, which means there is no mold or unpleasant odor.

This modification is laid out as follows:

If the roof slope is small, the modification is laid on a plank flooring fixed to the rafters.