Fire Safety Encyclopedia

Technical characteristics of the material isospan a. Technical characteristics of isospan film Isospan vapor barrier technical characteristics

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.

Isospan 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 for insulating roofs and walls, used in elements of attic floors, laid on concrete floors under a cement screed and floor covering. The films are divided into 4 groups - A, B, C, D, each of them is used for a different purpose.

The building material has an indisputable advantage - it is versatility in use and ease of installation. The vapor barrier is certified, complies with GOST of the State Construction Committee of the Russian Federation.

Waterproof film

Izospan, which protects structures from wind and moisture, is presented in several modifications:

  • Vapor-permeable isospan A - the technical characteristics of this type of material make it possible to use it to protect frame walls and roofs from wind and atmospheric moisture, condensation. On the outside, the film has a smooth, water-repellent coating. The back surface is porous and promotes the removal of vapors from fibrous insulation materials.
  • Isospan AS brand has the form of a three-layer, vapor-permeable membrane film with increased water-repellent properties.

  • Izospan AF protects against wind and moisture, does not burn. This type of film is intended for use when 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 excluded. Recommended for arranging 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 the films is in the density of the material, breaking capacity, vapor permeability and hydro-repellent properties. The most dense is isospan grade A and AF (110 g / m²). The AS film has the maximum water resistance, and the AF version is the least vapor permeable.

Metallized films

Izospan 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 excluded.

  • FD polypropylene film is used for laying a protective layer during insulation of roofs and walls. The material is highly resistant to tearing and mechanical damage.
  • Isospan FX foils are used as a base for infrared heated floors.

  • Isospan FS modification is a budget option, it has a lower density. At the same time, the material retains steam and waterproofing properties. The film is also used as an infrared screen.
  • Izospan FB has a high vapor resistance, it is intended for insulation of baths, steam rooms, saunas and other rooms with high temperatures and condensation. Buildings must be equipped with mechanical ventilation.

The difference between metallized films is density, tensile strength and vapor permeability. The thermal reflection coefficient is the same for all types of isospan in this group.

Vapor barrier films

A type of film designed to protect external and internal surfaces from steam and moisture, has a laminated outer layer and a porous inner side. The special structure allows condensate to be collected and does not allow it to evaporate. Thanks to this, moisture does not accumulate on the walls, there is no steam in the room, the walls do not get wet.

  • Isospan C vapor barrier has high protective properties, can be used for insulating unheated rooms as a substrate for laminate flooring, insulation under the roof. The film is able to prevent even leakage in places of loose installation and defects in the installation of the roofing.
  • According to the instructions for use, Isospan B is used to protect mansard roofs, insulation materials from moisture, steam, fungus and mold. The material prevents the penetration of vapors from the inside of the room, and also insulates the living space from the penetration of particles of the insulation of the walls and roof. Suitable for vapor barrier of premises made of any building materials, installation of attic, interfloor and basement ceilings.

  • Universal Isospan D has a high density and is able to withstand significant mechanical loads. The film is used in all construction elements to protect roofs, walls, floors and wooden floors in attic spaces. This material can be used in the arrangement of flat and pitched, non-insulated roofs, foundations, basement structures.
  • The DM modification includes vapor barrier, moisture resistant, anti-condensation and heat-reflecting properties. This type of isospan has a wider scope than brand D.

The innovative material is the RS and RM type of Isospan film. Their distinctive feature is an additional reinforced polypropylene mesh layer. Due to this, the breaking capacity increases, the blade can withstand high mechanical loads.

In the construction of frame walls, Isospan B is used, the material is laid from the inside of the mineral wool to the supporting 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, the material is fastened together with a special Isospan SL tape. On top, galvanized profiles are mounted to strengthen the drywall with a ventilation gap of 4-5 cm.

For the construction of a non-insulated pitched roof, Isospan D is used, which provides waterproofing of structures. The material is laid on wooden roofing rafters, it does not matter which side to lay the film on. The sheet is fixed, starting from the bottom of the 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 isospan KL or SL double-sided connecting tape. The vapor barrier is fixed to the rafters with a construction stapler. A plank flooring is mounted on top for further laying of the roofing material.

Instructions for the use of isospan B in the construction of a pitched insulated roof: the film is strengthened from the inside of the insulation on wooden rafters. The smooth side should fit snugly against the insulation material, the rough surface remains at the bottom. Installation is carried out from bottom to top, in a horizontal way. The sheets 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 contacts metal, concrete and other surfaces, the surfaces are glued with one-sided ML proff tape.

For the installation of attic floors, a vapor-permeable hydro-, windproof film AM or AS is used. The membrane is laid on top of the insulation with the light side inward and fixed with a stapler. The overlap of the panels should be at least 15–20 cm. Counter-battens and a floor covering are laid on top of the isospan.

Izospan is a versatile building material that can be used to protect walls, roofs and floors from moisture, wind, internal steam and condensation. Films have high wear resistance and long service life.

Thermal insulation of a building and its protection from atmospheric moisture are the basis of comfort and a guarantee of the durability of structures. Construction work aimed at solving such problems cannot be performed with high quality without the use of special steam and waterproofing materials.

For high-quality protection of structures from steam and moisture, brand names should be preferred when purchasing.

Vapor barrier Izospan, for example, is represented by a wide range of products, each of which is optimally suited for a particular type of work. This allows not only to qualitatively protect the insulation from sticking and weathering, but also to save on insulation work. Since we are talking about such a popular insulating material as Izospan, we will dwell on it in more detail.

The range of the brand currently includes 14 positions of roll insulation.

The first group is represented by vapor-permeable membranes, which differ in density, strength and vapor permeability. Their resistance to solar ultraviolet (UF-stability) is the same and ranges from 3 to 4 months. This parameter must be taken into account, since it shows how long such a membrane can stand under the open sun without losing quality.

Membrane Izospan A designed to protect insulation and supporting structures from under-roof condensation, atmospheric moisture and wind. Reviews of this type of isolation are mostly positive. This material is excellent for steam and waterproofing of all types of sloped roofs. Install it on the outside of the insulation.

Izospan AS - a three-layer polypropylene membrane designed to insulate roofing, wall structures and insulation from external moisture and water vapor coming from inside the room.

Izospan AM - universal vapor-permeable two-layer membrane. It is used to protect insulation and roofing elements from weathering and condensation.

Izospan A with flame retardants (OZD) eliminates the risk of fires in structures during welding, waterproofing walls and basements using a blowtorch.

What is the difference between these types of insulation? The strongest and most durable is the AS brand. Izospan A passes water vapor best of all (3000 g / m2 / day). For Izospan AS and AD, this figure is 1000 and 1550 g / m2 / day, respectively.

Despite the lower vapor permeability, membranes of the AS and AD brands can be installed directly on the insulation. Izospan A for high-quality steam removal requires an air gap, which is made by stuffing a counter-rail onto the rafters. Therefore, the labor intensity and consumption of materials when installing this insulation will be higher.

The next class of insulation of this brand is characterized by a lower price and a wide range of applications - Izospan polypropylene vapor barrier films B, C, D and DM.

Isospan B film optimal as a vapor barrier that reliably protects thermal insulation and structures in a pitched warm roof, interfloor ceilings, light frame walls, attic and basement ceilings.

Izospan has B, C, D and DM the structure of the canvas is two-layer. One side of these films is made smooth, and the other - rough. Roughness in this case is necessary for better retention of water condensate and faster evaporation.

Which side to put isospan on is easy to understand even for a beginner... Water vapor, passing through this material, condenses on its outer side. Therefore, Izospan grades B, C, D and DM are always laid with the rough side out.

The instruction for use of Izospan S indicates that it can be laid not only in the roof (warm and cold), but also used as a waterproofing for all types of bases (earthen, sandy, crushed stone). This material has proven itself well in the construction of concrete floors in rooms with high humidity.

Izospan grades D and DM are distinguished by increased resistance to solar radiation and high tensile strength (a 5 cm wide strip of this material can withstand a load of up to 106 kg). Therefore, it can be used for temporary roofing without fear of rupture of the canvas due to the snow load. For grades B and C, the strength is significantly lower - 13.0 and 19.7 kg / 5 cm, respectively.

Relatively recently Izospan RS and RM films have appeared on sale reinforced with polypropylene mesh. Their breaking strength is 41.3 and 39.9 kg / 5 cm, respectively.

The next group of Izospan materials is represented by insulating films of the FS, FD, FB and FX brands. ... These are very interesting materials, since they use a progressive method of thermal insulation - reflection of infrared radiation.

Such films not only reliably protect walls and insulation from condensation, wind and precipitation, but also make a significant contribution to increasing the level of energy saving.

These materials absolutely do not allow water vapor to pass through, therefore, they should be used only in rooms where a forced mechanical ventilation system works. Another area of ​​application is reflective underfloor heating and wall screens behind radiators.

Different brands of Izospan heat-reflecting insulation differ from each other only in mechanical strength and type of material. Izospan FD has the highest strength (80 kg / 5 cm). It is followed by the FB, FS and FX brands (35, 30, and 17.6 kg / 5 cm).

Izospan FS and FD are made of double polypropylene film. One side of it is metallized and plays the role of a reflective screen.

The FX brand is made of 2 to 5 mm thick foamed polyethylene covered with a metallized film. The basis of Izospan FB, which is often called bath foil, is kraft paper laminated on one side with metallized lavsan.

The reflection coefficient of thermal infrared radiation for these types of insulation is the same and is 90%.

Installation of Izospan does not apply to complex types of work... The waterproofing panels can be laid vertically or horizontally, depending on the location of the lathing frame for internal or external wall cladding.

Installation diagram of membranes and films Izospan

  • 1 - roofing material;
  • 2 - lathing;
  • 3 - Izospan membrane (A, AS or AD)
  • 4 - lathing;
  • 5 - rafter leg;
  • 6 - film Izospan D, Izospan B or Izospan C;
  • 7 - insulation;
  • 8 - inner lathing;
  • 9 - filing (drywall, lining).

Ventilated facade insulation diagram

  • 1 - facade decoration;
  • 2 - supporting structure;
  • 3 - membrane Izospan A;
  • 4 - thermal insulation;
  • 5 - wall

Insulation of basement and interfloor overlaps using wooden joists

  • 1 - finishing floor;
  • 2 - black floor;
  • 3 - distance rail;
  • 4 - isospan B;
  • 5 - lags;
  • 6 - hemming board;
  • 7 - isospan C;
  • 8 - thermal insulation;
  • 9 - fixing rail;

The Izospan insulation is fixed with a chiseled fastener or with the help of lathing bars. When installing panels, it is necessary to maintain an overlap of at least 10 cm. All joints should be carefully glued for high-quality sealing. For this, the manufacturer completes its insulation with Izospan FL metallized tape.

You will understand how to lay Izospan at the points of abutment to the walls and other structures of the building by watching the videos of the installation companies that they post on the Internet. On our own behalf, we add that in this work it is especially important to carefully fix all the junction areas and reliably seal them using a special Izospan SL butyl rubber tape.

At the end of our review, we present an indicative list of prices for Izospan insulation.

Useful video

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 foam insol 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. Made from polymeric materials. It has an interesting property - one side allows steam to pass, and the other does not.

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

  1. 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.
  2. Izospan V. Vapor barrier membrane. It must be laid in order to protect the insulation from the penetration of condensate from the side of the room.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. Izospan S. Two-layer vapor barrier, with one rough side. Condensation accumulates on it, and then evaporates.
  10. Izospan D. Two-layer polypropylene woven fiber. Very tear resistant. Protects from outside moisture.
  11. 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

These are metallized adhesive 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 isolate 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 precisely written 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 of circumstances, is absent, remember a 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 work 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. So you can do everything right, avoiding unnecessary alterations in the future.

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 mildew and mildew. Many manufacturers produce special membrane films for this purpose. So, isospan vapor barrier is very popular.

Specifications and types

Isospan vapor barrier is membrane with increased water resistance, which can be laid in all 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 steam, but also a waterproofing. Accordingly, the material must be installed on roofs and in saunas. In other words, we are talking about those cases when a higher temperature and high level of humidity are required in the room. Although such a membrane is quite expensive, it will become a truly indispensable element.

There are many types of vapor barrier 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 "cake", so that water will not damage the structure itself.
  • Izospan V is a two-layer universal vapor barrier, which is usually used only indoors. With the help of such material, you can protect the roof, walls, basement and attic. Izospan B can be used as a heater. This is due to the fact that the material has a high density.
  • Izospan S is a two-layer membrane with hydro-vapor barrier characteristics... Such material is laid in attics, as well as on non-insulated roofs.
  • Izospan D - a membrane that provides reliable vapor barrier any building structures. The material is used in the construction of concrete foundations, plinths and floors.
  • Izospan AM is a high-strength material made of membrane film... Its 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

On sale you can find less common types of vapor barrier.

Instructions for the use of isospan

When using this material, the specific modification must be considered. If we talk about Isospane B, then with its help walls, roofs and ceilings are insulated. 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 such a 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 the possibility of using in the construction of roofs with a slope of less than 35˚... Thanks to this vapor barrier, an optimal microclimate is maintained in unheated attics. There is no condensation on the walls and ceilings of the basement floors, which means there is no mold or unpleasant odor.

This modification is laid as follows:

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

General instructions for self-installation of the vapor barrier

Is a line of polypropylene nonwovens designed for steam and waterproofing 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 nonwoven fabric manufacturing technology is fully automated. But at the same time, quality control is necessarily carried out at each stage.

Izospan has a hygienic, fire certificate. Also, the products have been tested for compliance with building codes and GOSTs. As a result, a GOSTSTROY certificate was issued for it. Izospan has no analogues among similar domestic products.

Specifications

Isospan B, C, D, DM characteristics:



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

  1. Water vapor permeability.
  2. Strength.
  3. Density.
  4. Water resistance.
  5. UV stability.

Isospan A has the highest vapor permeability (3000gr / m2 / day), but it has the lowest water resistance (330 mm.WC), which makes it possible to use it only on roofs with an angle of inclination 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 / m2 / day, respectively, but they are favorably distinguished by a water resistance index - 1000 mm.w.st. As a result, they have become the main materials used in roof insulation.

If it is expected that the roof will remain uncovered for some period of time, it is necessary to use Isospan AQ proff. He alone has UV stability for 12 months.

Isospan D's best tensile load is 1068/890 N / 5cm, but it has the lowest 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 rupture rate 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

  1. Polypropylene film with a smooth top and fleecy bottom. The villi are necessary to trap condensing moisture and prevent it from rolling onto finishing materials. Installed in front of the insulation in such structures:
    • insulated roof;
    • walls;
    • overlapping;
  2. Laminated canvas with a smooth and fleecy side. Due to the increased density, the field of application of this material is expanding. It is used:
    • On unheated roofs, as moisture insulation.
    • In ceilings (including above basements and attics), as a vapor barrier.
    • In floor structures.
    • In a concrete screed, as a hydro-barrier.
  3. Polypropylene fabric laminated with a film. Izospan D is widely used as:
    • Additional moisture insulation on unheated roofs.
    • Vapor barriers for any structures requiring protection from water vapor.
    • Waterproofing layer in the screed.
    • Temporary roof.
  4. Diaphragms marked A, AS, AM, AQ proff protect the insulation from getting wet, weathering and drain condensate from the roofing or wall cake into the drainage system. Benefits of using:
    • Remains of moisture trapped in the insulation layer from the room are easily removed.
    • The probability of penetration of atmospheric precipitation into the thermal insulation material is minimized.
    • It becomes impossible to weather the mineral wool.
  5. Membrane A. The polypropylene membrane has a smooth water-repellent side and a rough, condensate-retaining side. A membrane of this type has a low coefficient of water resistance, therefore its main purpose is to protect the insulation on the facade.
  6. Izospan AS, AM, AQ proff. AS, AM are a membrane made of a vapor-permeable material and a dense, air-tight backing. Used to protect:
    • Frame-type walls.
    • Ventilated facades.
    • Insulated roof.
  7. Heat-reflecting vapor barriers FB, FD, FS, FX trap the smallest particles of moisture and radiant energy in the room. Advantages of using thermal insulation reflective films:
    • Heat loss through the building envelope is reduced.
    • Heating costs are reduced.
    • Eliminates the likelihood of mold formation in wet rooms;
  8. Steam barrier FB. Izospan FB is made of 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.
  9. Vapor barrier FD, FS. Izospan FD, FS is a polypropylene film reinforced with a metallized layer. Isospan FD uses a grade D vapor barrier film as a base layer, while FS uses grade B. Manufacturers recommend using the described vapor barrier for interior decoration:
    • steam room;
    • attics;
    • as a heat-reflecting screen;
  10. This material is polyethylene foam backed up with a metallized film. Polyethylene with a layer of bubbles is an excellent heat and sound insulator, and the metallized layer prevents heat leakage, retains steam and water. Izospan FX is the most cost-effective, safe and durable steam, noise and heat insulator. Its disadvantage is the maximum operating temperature - + 90 ° С, which makes it impossible to use it in steam rooms. It is actively used as:
    • Substrates for underfloor heating.
    • Reflective screen for.
    • Insulation for mansard roofs in tandem with classic materials.

It is possible to use reflective films to insulate walls and ceilings only in rooms with forced ventilation, since these materials have a zero vapor permeability index.

Pros, cons and varieties


Heat reflective vapor barrier film

Advantages:

  1. Environmental Safety.
  2. Wide range of.
  3. Affordable price.
  4. Reliability and durability.
  5. Persistence to the formation of mold.

Disadvantages:

  1. Low durability to the fire.
  2. Carries out its functions only when properly installed.

By purpose, the material is divided into three types:

  1. Steam and moisture insulating films.
  2. Moisture and windproof vapor permeable membranes.
  3. Heat reflective vapor barrier films.

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

The advantages of using a vapor barrier film:

  1. The service life is increased insulation.
  2. Reduces the likelihood of condensation and contamination of structures with fungus and mold.
  3. The possibility of entering the premises is excluded volatile insulation particles.

Mounting


Isospan installation scheme on an insulated roof

To lay the material you will need:

  • roulette;
  • hammer;
  • construction stapler;
  • nails;
  • wooden slats;
  • Scotch;

Isospan laying on the roof:

  1. Roof insulation begins with fixing the vapor barrier film(B, C, D) to the structural frame or to the rough skin.
  2. Fix the material with staples or galvanized nails. For additional sealing, the seams are fastened with special tape isospan SL or KL.
  3. The sheets are rolled horizontally in the bottom-up direction. An overlap of 15-18 mm is made between adjacent canvases.
  4. During installation, you need to monitor the tight fit of the film to the insulation.
  5. Over insulation A, AS, AM, AQ proff.
  6. Isospan A is fastened with antiseptic locks to the rafters nails or self-tapping screws, so that a gap of 5 mm is formed. Izospan AS, AM, AQ proff, on the contrary, should fit snugly to the insulation. Therefore, it is attached to the rafters with staples or galvanized nails.
  7. Installation starts from the bottom of the slopes. Along the overhang of the ramp, the membrane is inserted into the gutter. The canvas is rolled horizontally, making sure that there are no distortions. It is important to secure the material with an interference fit. The allowable sagging is no more than 2 cm. The canvases should overlap each other by 15 cm horizontally, and 20 cm vertically.
  8. So that condensation can evaporate, in the area of ​​the ridge and in the lower part of the roof, ventilation holes are provided.
  9. Over the vapor barrier membrane mount the crate.

Izospan will perform its function only if it is properly laid. 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 affordable material, but its installation, due to the need to create a ventilation gap, is more expensive than the cost of stronger and more durable analogues.


Wall insulation:

  1. For ventilated facades Isospan A and AM are suitable. In cases where there is a likelihood of fire, use a material with OZD.
  2. The membrane is fixed over the insulation with the smooth side out. The sheets are rolled out so that there is an overlap of 10 cm.
  3. Isospan is fastened along the building frame with staples. On top of the vapor-permeable membrane, the locks are vertically fixed, on which the facing material is attached. To prevent the effect of acoustic pops from appearing during operation, there should be no loose and sagging sections along the entire length of the canvas.
  4. To remove moisture, the design necessarily provides for a ventilation gap in the lower part of the skin. Izospan is placed in such a way that the moisture accumulated under the sheathing drains into the drainage system.

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