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The Hexa company, although not a monopolist in the building materials market, has a niche vapor barrier films and occupies the entire membrane. Their products are a windproof, vapor-permeable, waterproofing membrane under the Izospan brand. Depending on the structure, density and scope of application, series A, B, C, D, E, F, K, etc. are produced. Basically, these are two-layer nonwoven materials, where one side is smooth, the other is fleecy and/or rough.
Using Izospan B film as an example, we will tell you which side to lay towards the insulation, how to lay it correctly and what they are generally intended for.
Why Izospan
This is not the first article we have devoted to the study of this material, so we will briefly discuss the main characteristics and scope of application.
Izospan B (V) is a two-layer non-woven material used to protect all types of structures, including floors, in any buildings. Prevents the formation of condensation and, as a result, the development of fungus. Retains dust and insulation fibers and serves as wind protection.
Membrane properties
Consists of two layers - outer smooth for convenient fastening, bottom - perforated - to retain moisture. This difference in texture makes it easy to figure out which side to put Izospan to the insulation - with the bottom fleecy layer towards the place where condensation forms in order to constantly remove it.
Subject to use vapor barrier membrane, the design is reliably protected from formation excess moisture, accumulation of condensate on nodes and metal elements, rotting of wooden rafters and walls, etc. A side effect of using such a film is that it prevents insulation fibers, especially if it is mineral wool and especially glass wool, from entering the room.
VIDEO: Which side to lay steam and waterproofing
We understand the sides and fastening
Let us remind you once again which side to lay Izospan B - perforated towards the insulation, smooth outwards. Even if it is not possible to determine by touch which of them is rough, the marking - the name of the canvas is displayed on the smooth side, that is, when attaching it, you should see the name.
The inner side of the fabric is designed to absorb moisture
Installation of the Izospan material is carried out by one side or the other, depending on what material is used.
The membrane is always attached to load-bearing structural elements or to rough cladding or flooring. The canvas is secured with wooden slats or a construction stapler.
If lining, eurolining, plywood, etc. are used for finishing, the film is fixed with thin wooden slats parallel to each other. Insulation is inserted between the slats, in this case the smooth surface faces it.
When carrying out steam waterproofing of the roof, individual strips are attached overlapping each other (the overlap width is at least 10 cm) and are fixed double-sided tape, and the attachment point itself is additionally covered with tape for vapor barrier. The Hexa company produces a whole line of adhesive tapes specifically for such needs.
It is clear that you need to determine which side to put Izospan in each specific situation, taking into account that its fleecy surface should absorb water, that is, it faces the place where the condensation will come from.
Application in certain areas
The use of a vapor barrier material greatly extends the service life of the insulation and, as a consequence, the entire building structure. Its main task is to prevent the penetration of condensate and the formation of fungus.
Membrane or polyethylene film- a mandatory element when constructing an insulated roof. It is mounted on the elements of the supporting frame, less often - on the rough finish. It is necessary to ensure that moisture formed due to temperature differences does not get on the insulation. To enhance the characteristics of the joints (overlapping), Izospan SL is glued.
It is laid with the smooth side against the insulation, regardless of its type - polystyrene foam, polystyrene foam, mineral wool, etc.
The structure of the product is such that it is equally successfully used both externally and internal insulation. The main thing is that straight lines do not fall on the film. sun rays- they significantly reduce the service life and generally have a negative effect on the canvas. For exterior finishing, the smooth side also faces the heat insulator.
Floor structures
Polyethylene is laid between the cladding and the rough ceiling with the perforated (reverse) side down and directly above the insulation itself, with the rough surface facing it.
Be sure to make a ventilation gap of 40-50 mm between the vapor barrier and the insulation for air circulation.
To ensure the tightness of the joints, it does not matter whether they use series B or FX; when they are laid end-to-end, they are glued with KL or SL tape.
When laying any floor covering on a concrete, brick, cement or other base (with the exception of wood and its derivatives), be sure to lay a layer of vapor and waterproofing to compensate for temperature differences and absorb condensation. They lay the canvas directly on the screed, they can lay it with insulation if the decorative coating is thin, or they can immediately lay parquet or laminate on the base.
Installation instructions
In houses and premises where work is being done to insulate walls and roofs, the membrane sheet is attached to the supporting frame between the insulation and the rough finish, with the smooth side facing the insulation. For fixing, it is permissible to use galvanized nails with large heads so as not to tear them, or use a stapler - this is much more convenient and faster.
When working with inclined surfaces, cut the required size sheets in advance and fasten them horizontally from bottom to top with an overlap of 10-15 cm.
During further finishing with lining and other wood panels the film is fixed with wooden slats with an edge of 40 mm, pre-impregnated with an antiseptic.
When plasterboard is used for rough finishing of walls, the membrane is secured with staples or galvanized nails, with its smooth side facing the insulation and fitting as tightly as possible to it.
In case of excessive humidity, roof insulation or external wall insulation, the joints are additionally fixed with double-sided tape Izospan KL or single-sided tape SL.
It is prohibited to use ordinary stationery tape - it will not last even a day on the surface of the membrane.
For insulating floors, foundations and ground floor Izospan B is laid between the subfloor and the decorative coating. The panels are also laid overlapping, but there must be a ventilation gap between the outer side and the insulation for air circulation - 40-50 mm is enough.
The same applies when laying the floor on a cement or concrete screed. In this case, be sure to use adhesive tape or connecting tape for the longitudinal seam of the panels to prevent even the slightest wetting of the parquet or laminate.
Scope of application of individual series
- A - membrane for the under-roof surface to protect against moisture and wind;
- B - vapor barrier
- AS - “breathable” diffusion membrane;
- AM - “breathing” diffusion membrane;
- AQ - professional line of protective equipment;
- FS - reflective with foil layer;
- D - vapor and waterproofing membrane;
- KL, SL, FL, FL - double-sided and single-sided connecting tapes
In general, we figured out which side to put Izospan on insulation, supporting frame, subfloors and some types of finishing. If you have any questions, you can ask them in the comments to the article. The company's specialists will answer them as soon as possible.
VIDEO: Condensation on the roof + incorrect vapor barrier
Almost every building needs high-quality insulation, even if it is. This is a real axiom in construction world. Houses need to be insulated, since initially their structures are not able to withstand temperature changes and quickly freeze during the cold season.
However, it is not enough to simply decorate the walls with insulation. You need to create a real heat-insulating cake, in which a wind- and moisture-proof or simply moisture-proof film plays an important role.
We will now understand what a moisture-proof film is, using the example of Izospan products. In particular, the products Izospan A and Izospan AM coupled with.
1 Features of Izospan film
The Izospan company has been producing insulating materials for a very long time. Throughout their existence, they have managed to prove themselves to be the best on the market. Therefore, there is no doubt about the quality of their products.
The main line of products from this manufacturer is a special protective film. There is film Izospan A, Izospan B, Izospan C, etc. There is a difference between these materials and you need to pay attention to it.
Although it is worth noting an interesting fact, there are practically no visual differences between films of models A and C. Their sizes are also the same.
All that remains is to rely on the technical characteristics and the intended purpose. If we evaluate insulation from its properties, from the difference between different materials become obvious.
1.1 Differences between materials
Thus, Izospan A film is wind and moisture protective, that is, it acts as a limiter for insulation. Do not be mistaken in thinking that wind protection for thermal insulation is not needed. Quite the opposite.
Wind is a very serious irritant. Unlike ordinary moisture or steam, it constantly affects surrounding structures. And modern insulation materials (like mineral wool or polystyrene foam) do not have sufficient density, so they are subject to external loads.
Slowly but surely the wind will undermine the strength of the material until it completely destroys it.
The situation with moisture is different, but this is probably already clear to everyone. Moisture-proof film is a real necessity. After all, it is the moisture-proof insulation that allows you to limit the insulation from water getting inside it.
And by the way, remove water from already installed slabs isolation is extremely difficult. If your structures are unventilated, then it’s completely impossible. As you can see, the wind and moisture protective film performs extremely useful functions.
Izospan B moisture-proof membrane film, as already concentrated on slightly different tasks. Here the main emphasis is on protecting the thermal insulation from steam penetration. Its thickness is usually less, but the cost is also significantly lower.
Many people are interested in the question of whether there is a difference between Izospan A and AM insulation. And indeed, if you look only at the technical properties, the materials seem identical.
However, there are still certain differences. Just look at the product certificate, where the full technical characteristics and purpose of the material are indicated.
Initially, the Izospan A membrane has a higher density and is additionally protected from damage during installation. Therefore, the manufacturer recommends using it primarily for wall decoration. Especially for work in ventilated insulation frames.
But Izospan AM is slightly weaker in terms of strength, which forces the user to use it in places with less load. As a result, the AM model is almost ideally suited for roof finishing.
1.2 Properties and parameters
Now it’s worth assessing the technical characteristics directly, as well as its interesting nuances. But first, let us note that all the properties described below are those when you use products that have received a certificate.
All Izospan products have a certificate of conformity. Therefore, when purchasing, you have the right to demand a certificate from the seller, thereby wanting to make sure that they are not trying to sell you a fake.
The certificate of conformity is issued by government agencies and contains information about the product, its quality mark, etc. The certificate also allows you to verify that the ingredients stated on the packaging are actually present in the membrane.
It would seem, why such excessive caution? After all, it's just isolation. But in fact, you need to understand that insulation has no less weight in the structure than the same insulation.
You can buy expensive mineral wool insulation and cover all structures with it, hoping for a miracle. But if you do not install at least a regular wind- and moisture-proof membrane, then in just a few years serious problems may begin.
2 Production features
The wind and moisture protective membrane is produced using proprietary equipment in the workshops of the Izospan company. It is made from dense polypropylene. Moreover, the polymer is used mixed with a bunch of chemical components, as in.
Just don’t be afraid, there’s nothing harmful in it. These components only contribute to the strengthening of the material and its durability. Thus, the Izospan membrane model AM, due to the presence of a separate class of polymers in it, has a much higher density than that of competitors’ products.
But the AM model is far from the most durable example from the Izospan line.
Another important point is the two-layer coating of the film. Or rather, it has two sides. That is, the membrane has different coating on each side.
One side is water-repellent. Mounted outside of the insulation. It is smooth and very durable, designed to protect against wind and moisture. Such a polymer is not able to blow through the wind, and the water simply flows down along it, where it is removed through drainage outlets.
The second side is moisture-retaining and rough. It is she who is directed facing the insulation. Its task is to collect condensate, because the membrane is vapor permeable. On a rough surface, condensation is retained and then eroded without affecting the insulation inside.
Actually, this is the unique characteristics of Izospan film. On the one hand, it completely protects the insulation from moisture. On the other hand, it delays it, preventing it from flowing inside the thermal insulation.
This combination has been able to win the trust of builders around the world. Only better.
2.1 Installation procedure
Let's consider the order of laying the membrane. It is worth noting that it is different for each design. Unlike a vapor-proof film, a wind- and moisture-proof membrane is vapor-permeable, that is, it does not block steam.
It rather serves as external insulation. A kind of limiter and external fencing for insulation boards.
Accordingly, it needs to be installed in a certain place.
Initially, any thermal insulation threshold consists of the following layers:
- Base;
- Vapor barrier;
- Insulation;
- Waterproofing;
- Lathing;
- Facial material.
It is at the site of waterproofing that Izospan A is installed. But here it is also important to note several nuances.
For example, when finishing facades, the material is mounted directly on the insulation, then covered with special strips or not fixed with a frame at all. You can get by with thorough fixation using a construction stapler.
But the finishing of the roof is already carried out according to a slightly different procedure. Here the membrane must be placed immediately under the cavity of the rafters or panels roofing structure. Then the frame or the insulation itself is laid.
3 Installation technology
The moisture-proof membrane is installed using a simple procedure. Here it is only important to properly seal all the joints and make sure that there are no holes left in the material.
Stages of work:
- Unpack the film.
- If necessary, chop.
- We lay insulation starting from the lower level of the structure.
- We mount each level above the previous one, observing overlap.
- We secure the film with a stapler.
- We seal all joints with protective tape.
Don't skimp on the membrane. Try to cover each subsequent layer with a film with a length of at least 20 cm. This will allow you to completely get rid of the possibility of leakage in structures.
The front covering is already stuffed on top of the slats. This way, you will be able to organize something like a ventilated gap, which will promote the evaporation of liquid on the membrane.
However, it should be noted that in the case of working with Izospan A or AM insulation, compliance with the presence of a normal air gap is not always fully required. Very often you can do without it. But it is better, of course, not to overuse such solutions, unless you live in a very dry climate.
3.1 Instructions for using the Izospan A membrane (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 making waterproofing materials“Izospan” uses a special individual technical base. 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 presence 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 appeared that were externally similar to Izospan products, but had dubious quality and low technical characteristics. 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 conditions for indoor living.
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 ensure protection of the elements of the insulation system and structural elements of the building from the formation of condensation masses, 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.
Using steam 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 the insulating materials; in this case, there is no ventilation gap. Thus, there is no 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 is 100 percent polypropylene, it is able to work in such temperature conditions-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 stability before moisture;
- high level of 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 work. 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 the 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 of which side to lay “Izospan” on, you should be extremely careful, since improper installation of the material will lead to a violation of 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 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 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-battens 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:
Izospan is a membrane film used during construction to protect load-bearing surfaces from wind, moisture and steam. The material differs in characteristics and technical properties depending on the type and purpose.
Izospan insulation is made of polypropylene, resistant to mechanical stress, low and high temperatures, mold and mildew. The film is characterized by a long service life and environmental safety.
Isospan vapor barrier is used to insulate roofs and walls, is used in attic floor elements, and is laid on concrete floors under a cement screed and floor covering. Films are divided into 4 groups - A, B, C, D, each of them is used for a different purpose.
The building material has an undeniable advantage - it is versatility in use and ease of installation. The vapor barrier is certified and complies with GOST of the State Construction Committee of the Russian Federation.
Moisture-proof film
Izospan, which protects structures from wind and moisture, is available in several modifications:
- Vapor-permeable isospan A - the technical characteristics of this type of material allow it to be used to protect frame walls and roofs from wind, atmospheric moisture, and condensation. On the outside, the film has a smooth, water-repellent coating. The back surface is porous and helps remove vapors from fibrous insulation materials.
- The AS brand of isospan has the form of a three-layer, vapor-permeable membrane film with increased water-repellent properties.
- Izospan AF protects from wind and moisture, does not burn. This type of film is intended for use in insulating buildings made of flammable materials.
- Two-layer isospan AM has high water-repellent properties; thanks to the additional layer, the possibility of damage to the material during installation and construction work is eliminated. Recommended for installation of pitched roofs and load-bearing structural elements, insulation of attic floors. The film ensures the removal of vapors from the insulation, protects the room from weathering and accumulation of moisture from under the roof space.
The difference between films is the density of the material, tensile strength, vapor permeability and hydro-repellent properties. The most dense is isospan grades A and AF (110 g/m²). The AS film has the maximum waterproofing ability, and the AF modification has the least steam permeability.
Metallized films
Isopan with a metallized layer is designed to reflect infrared radiation; thanks to this property, not only protection from moisture and wind is achieved, but also excessive heating of the building in hot weather is eliminated.
- FD polypropylene film is used to lay a protective layer during insulation of roofs and walls. The material is highly resistant to tearing and mechanical damage.
- Isospan FX film is used as a basis for underfloor heating with infrared heating.
- Modification of isospan FS is budget option, has a lower density. At the same time, the material retains its vapor and waterproofing properties. The film is also used as an infrared screen.
- Izospan FB has high vapor resistance and is intended for insulation of baths, steam rooms, saunas and other rooms with high temperature and condensation accumulation. Buildings must have mechanical ventilation.
The difference between metallized films is in density, breaking load and vapor permeability. The thermal reflection coefficient of all types of isospan in this group is the same.
Vapor barrier films
A type of film designed to protect external and internal surfaces from steam and moisture, it has a laminated outer layer and a porous inner side. The special structure allows condensation to collect and prevents it from evaporating. Thanks to this, moisture does not accumulate on the walls, there is no steam entering the room, and the walls do not get wet.
- The vapor barrier isospan C has high protective properties and can be used for insulation of unheated rooms as a substrate for laminate flooring and insulation under the roof. The film can even prevent leaks in areas of loose installation and installation defects of the roof covering.
- According to the instructions for use, isospan B is used to protect attic roofs and insulation materials from moisture, steam, mildew and mold. The material prevents the penetration of vapors from inside the room, and also insulates the living space from the penetration of particles of insulation of the walls and roof. Suitable for vapor barrier of premises made of any building materials, installation of attic, interfloor and basement floors.
- Universal isospan D has a high density and can withstand significant mechanical loads. The film is used in any construction elements to protect roofs, walls, floors and wooden floors attic spaces. This material can be used in the construction of flat and pitched, non-insulated roofs, foundations, and basement structures.
- The DM modification includes vapor barrier, moisture resistant, anti-condensation and heat-reflecting properties. This type of isospan has a wider range of applications than grade D.
An innovative material is a variety of isospan film RS and RM. Their distinctive feature is an additional reinforced layer of polypropylene mesh. Thanks to this, the breaking capacity increases and the fabric can withstand large mechanical loads.
When constructing frame walls, isospan B is used, the material is laid on the inside mineral wool to the load-bearing elements of the frame using a stapler or nails. The film is fixed with the laminated side to the insulation, the panel overlaps from bottom to top with a margin of 15–20 cm. For greater tightness between each other, the material is fastened with a special isospan SL tape. Galvanized profiles are mounted on top to strengthen the drywall with a ventilation gap of 4–5 cm.
For the construction of non-insulated pitched roofs, isospan D is used, which provides water vapor barrier to structures. The material is laid on wooden roof rafters It doesn’t matter which side to lay the film on. The panel is fixed starting from the bottom pitched roof, in the horizontal direction, with an overlap at the joints of 15–20 cm or more. It is recommended to glue the seams with double-sided connecting tape of the KL or SL brand. The vapor barrier is fixed to the rafters with a construction stapler. A boardwalk is mounted on top for further laying of roofing material.
Instructions for using isospan B during the construction of a pitched insulated roof: the film is strengthened from the inside of the insulation onto wooden rafters. The smooth side should fit snugly against the insulating material, the rough surface remains at the bottom. Installation is carried out from bottom to top, horizontally styling The panels are fixed with an overlap with a margin of at least 15 cm at the joints. Double-sided adhesive tape provides additional tightness at the seams. In places where isospan comes into contact with metal, concrete and other surfaces, the surfaces are glued with ML proff single-sided tape.
For the installation of attic floors, vapor-permeable hydro- and windproof film AM or AS is used. The membrane is laid on top of the insulation with the light side inward and secured with a stapler. The overlap of the panels should be at least 15–20 cm. Counter slats and flooring are laid on top of the isospan.
Izospan is a universal building material that can be used to protect walls, roofs and floors from moisture, wind, internal steam and condensation. The films are highly wear-resistant and have a long service life.