What is a vapor barrier tape for a window and why is it used during installation. Mounting materials Self-adhesive vapor barrier tape

High-quality glazing requires a serious attitude and is impossible without proper insulation of the gap between the opening and the window. Often, organizations that install translucent structures are limited to traditional polyurethane foam, which is subsequently covered with plaster or other finishing materials. This approach has proven itself relatively well and in some cases does not cause complaints from the consumer throughout the entire life of the window.

However, glazing with one level of sealing the opening does not meet the state requirements for the quality of services or goods provided, that is, GOST. To comply with these requirements, additional insulation is required between the window and the opening, both from the side of the street and from the side of the room. Such isolation is provided with the help of special mounting tapes.

Mounting tape for windows is a self-adhesive material on a polymer or fabric basis, designed for additional sealing of window or door openings.

Varieties of mounting tapes for windows

The functions performed by the tapes are different and depend on the place of gluing, the state of the opening, the features of the future finishing of the slopes, as well as the requirements for window block. Next, consider the most commonly used materials common in the modern construction market.

PSUL

Pre-compressed sealing tape is mainly used on the outside of translucent structures. Its main purpose is to ensure unhindered removal of moisture from the area where the loot adjoins the opening.

In fact, this is a tape product made of elastic polyurethane foam (looks like foam rubber), usually gray or black. One side of the material is covered with an adhesive composition, insulated with a protective film. The tape is supplied rolled into compact reels or rolls (depending on the standard size), which need to be unwound only during installation, as the material loses its quality over time.

The main feature is the ability to fill joints as a result of the expansion that occurs as a result of contact with air. The tape isolates the gap from moisture and external influences with outer side, while allowing excess liquid to evaporate from the inside.

Scope of PSUL:

• Additional sealing of interfaces between elements of prefabricated structures;
• Sealing the gap between the frame and the opening when installing windows and doors;
• Insulation of joints between small-sized movable units of building facades;
• Filling the outer joint between the slope and the frame during PVC installations windows.

It is important to understand that for high-quality gap filling, a tape of the appropriate size is needed. For example, if the task is to seal a joint with a maximum width of 40 mm, you will need PSUL with a nominal size of 45-50 mm.

Hydro vapor barrier (HPL)

This type of tape product is most popular when installing window blocks. Among its main features are the following:

• Hydrovapor barrier mounting tape designed to seal joints from the side of the room.
• Most often used as the basis of self-adhesive material polyethylene film. On the one hand, the tape is equipped with a foil coating, and on the other - with an adhesive composition.
• The adhesive used provides secure fixation on most surfaces (concrete, brick, cinder block, wood, etc.). The products of some brands are characterized by poor adhesion to foam blocks and aerated concrete, so before purchasing, you should consult with the seller or read the attached instructions.
• The structure of the material excludes the penetration of moisture or air both through the tape itself and through the gluing points. Due to this, the maximum possible tightness of the joint of the opening and, as a result, the structure as a whole is ensured.
• In addition to insulation against moisture, the tape is not destroyed by prolonged contact with ultraviolet radiation and is not subject to destruction from exposure aggressive environments(household acids, alkalis and other reagents).

GPL is used for waterproofing mounting gaps that occur during the installation of window and door blocks, as well as for sealing structures made of metal, wood, concrete and plastic.

GPL-S and insulated GPL

VM (VM+) tape

• VM. Vapor barrier tape designed for sealing joints indoors. It is used in cases where wet finishing of slopes is planned (plastering or decoration tiles). Provides protection against moisture ingress into the joint of the opening and secure fixation of the finish coating.
• VM+. A modified analogue of the previous product with similar properties. Featured the best waterproofing qualities, which allows you to use it in rooms with high humidity (kitchens, showers).

BC (BC+) tape

Diffuse (vapor-permeable waterproofing tape)

It is used outside structures in conjunction with pre-compressed tape or in situations where it is impossible to use the latter. Traditionally, with the help of a diffuse tape, the area of ​​\u200b\u200battaching the casting profile is isolated, since PSUL cannot be glued at the place of its fixation, but there are also cases of use around the entire perimeter of the window block.

The structure of the diffuse tape prevents the penetration of moisture and cold air into the assembly seam, in addition, the material protects the polyurethane foam from solar ultraviolet radiation. In addition to the protective qualities, the tape has the ability to pass steam formations with inside the junction of the frame and the slope, thus providing the necessary ventilation of this section of the structure.

Butyl rubber tape

The butyl rubber used in the basis of the tape is quite elastic material with high adhesion to most surfaces. It is equally firmly fixed both on stone and on wood or plastic. It is also worth noting environmental friendliness and almost complete harmlessness to the consumer. The main disadvantage is the flammability of butyl rubber, which requires compliance with the relevant installation and subsequent operation standards.

Used as insulating material from the inside of the structure. It is glued to the bottom of the window sill profile, as additional protection from blowing from the outside and the penetration of steam into the installation seam from the side of the room.

Mounting Features

The tape is glued both before fixing the window block in the opening, and on already installed structures. The first option is more convenient in cases with the installation of external insulation.

Consider the algorithm for applying tape insulation using the example of gluing pre-compressed sealing tape(PSUL) and internal GPL-S with an additional strip of double-sided tape:

It should be remembered that the tape must be selected in accordance with the weather conditions. Working in winter time, it is possible to glue only material intended for use in low temperatures.

Any window needs additional sealing. This is especially important if street noise has increased, a draft has appeared, and heat is lost in winter. Warming is best warm weather. Many methods are used for this, up to window replacement. Fortunately, there are Construction Materials that successfully solve this problem. Such material is considered a tape for insulation.

About warming

The microclimate of the room depends on the windows. Because of the uninsulated windows, the glass fogs up, cracks and fungus appear on the slopes, there is a constant draft and street noise. In order to effectively insulate windows, it is necessary to determine the causes of low thermal insulation.

Most often they are the following:

1. Wooden windows

First of all, insulation is required for old window structures for the following reasons:

• Previously, glass was attached to the frame with a special putty. Over time, it dries out and crumbles;

• the frames dry out, so cracks and gaps appear between the glazing bead and the glass;

• the sashes are deformed and loosely held on the frame.

1. Plastic windows

It is erroneously believed that such windows are quite tight, so they do not need insulation. Unfortunately, after a few years, the seal is destroyed, and insulation is indispensable.

There are other reasons why you need to deal with plastic windows:

• violation of window installation technology;

• skewed window structure due to shrinkage of the house;

• factory defect of the window structure;

• mechanical damage to structural elements.

Varieties of insulation tapes

The widespread use of tapes for window insulation is due to a number of reasons:

• no annual replacement required

• warming is carried out in a short time on their own;

• when pasting there is no dirt, since no water is used;

• there are no traces of adhesive on the frame;

• no diffusion of the adhesive layer with the frame paint.

But this method of insulation also has disadvantages:

• after gluing, you can not open the window sashes;

• low-quality or poorly glued tape lags behind the frame small areas.

AT construction stores offer two types of tapes, which differ in the way of installation.

1. pasting

Tapes of this type have a wide grip. Adhesive composition applied during manufacture (self-adhesive type) or during installation work.

To create a self-adhesive tape, polyvinyl chloride, rubber and polyethylene foam (foam rubber) are used.

Due to the plasticity of these materials, the tape is easily compressed to the size of the gap. So that the insulation does not stand out against the background of the window, dyes are added: black, brown, white.

Typically, the packaging indicates the size of the gap that the tape closes. Popular options with sizes 3 - 7 mm.

Foam tapes were the first to be used. Their popularity is due to a number of advantages:

• high compression ratio;

• the frame does not collapse in places of insulation;

• low cost;

• high protection efficiency.

Such tapes have negative qualities:

• insufficient efficiency for large gaps;

• short service life. Effectively operate during one winter season;

• for cheap models, the adhesive tape is poorly fixed;

• low water resistance.

Important!

More convenient to use for insulation self-adhesive tapes on the foam.

They stay longer on the window and adjust the degree of pressing of the sashes.

1. Sealing

Tapes of this type have a hollow tubular shape, which is why heat is retained. The material used is rubber and polyvinyl chloride.

On one side of the tape there is a groove hook or adhesive coating with paper protection.

It is believed that the groove is more resistant to mechanical stress.

The following qualities are considered to be advantages:

• gaps up to 0.7 cm are blocked;

• any temperature fluctuations are maintained;

• it is possible to choose the color to match the frame color;

• the use of the window is not limited;

• affordable cost.

But most of the disadvantages relate to adhesive tapes:

• not suitable for all window designs;

• breaks down with temperature fluctuations adhesive layer;

• with frequent deformations, delamination occurs in glued places;

• The foam tape gets wet quickly and dust sticks to it. For this reason, frequent replacements are carried out.

Tubular seals are checked annually. If necessary, individual fragments are replaced.

As a rule, the tape is selected according to three indicators.

By material

Main advantages:

• low cost;

• high elasticity, allowing to close gaps different sizes.

There are also disadvantages:

• due to the porous structure, moisture is quickly absorbed. The drying process takes a very long time;

• low durability. With prolonged use, the material turns yellow and crumbles.

Unfortunately, such tapes are rarely used for window insulation, as they increase the cost of window construction by up to 15%.

1. Rubber― it is used for production of two kinds of tapes: self-adhesive and sealing.

Self-adhesive tapes are produced on the basis of synthetic rubber and have all its positive traits: elasticity and resistance to temperature fluctuations.

Rubber seals are not afraid of aggressive environments, so they last a very long time.

1. Polyurethane foam (PPE)― porous material from the made foam polyethylene.

Due to the high elasticity, very effective tapes for small gaps. Good insulating qualities. Due to the presence of air in the structure, a heat-insulating environment is created.

Its use is limited by the ability to high temperature turn into a liquid toxic state.

Manufacturers

In hardware stores there are tapes from different manufacturers.

However, only materials from the following brands are in demand:

• Russia ― Profitrast, Ekon, Zubr.

• Germany - KIMTEC, Deventer.

• Poland - Sanok.

Domestic manufacturers, as a rule, work according to European technologies and produce quality material no worse than foreign samples. At the same time, although German and Polish tapes are more expensive, they last longer.

By cost

Insulating tapes are sold at retail and in coils from 6 to 10 meters.

Because for standard window you need about 5 meters of self-adhesive insulation, then retail purchases are most often made.

The price range is very wide.

Behind running meter Russian material you need to pay up to 15 rubles, and the most expensive German rubber insulation will cost 50 rubles.

Features of preparing a window for insulation

Preparing a window for insulation with tape is almost the same as preparing for other heaters. At the same time, there are some peculiarities.

The main steps are:

1. Everything is removed from the windowsill. Blinds are removed from the window.

1. The frames are washed with soapy water and then dried. The tape requires a dry and grease-free surface.

1. Glasses are carefully examined. At wooden windows glasses are cracked. They must be replaced, as they are a source of heat loss.

1. Grooves are prepared for the sealing tape. They should be free of old tape, dirt and paint.

1. Prior to the start of work, they are determined with the places where it comes from cold air from the street. They warm up first. Weak points are sashes, slopes, window sills.

Insulation with adhesive tape

The technology of insulation is not very complex. First of all, it is necessary to observe the sequence of work.

1. Plastic windows

Warming is carried out in the following sequence:

• pre-filmed old insulation it is used, firstly, for the acquisition of similar material, and secondly, for preliminary cutting to the dimensions of the old material.

• gluing starts from the top of the window. As you move, the protective layer is removed in small sections, and the tape is pressed tightly.

More in our video:

Important!

1. The pasted tape should not have many gaps.

2. In the corners, the tape is not cut, but wrapped.

1. Wooden windows

For these windows, in addition to adhesive tape, thin foam rubber is often used. Work is performed in the following sequence:

• strips of foam rubber are cut along the window opening;

• chopped foam rubber is placed between the frames;

• the tape is cut to the size of the window;

• with a sticky layer, the tape is applied to the foam rubber and smoothed with a napkin.

This insulation will last up to three years. But it is better to do as shown in the video:

Insulation with sealing tape

1. Plastic windows

Typically, plastic windows lose heat for two reasons:

• equipment failure;
• seal wear.

Proper installation of the tape increases the insulating ability of the window. The following sequence of work is recommended:

• before installation, the tape is kept at a positive temperature, since it depends on its expansion inside the groove;

• the tape is cut to fit the window. The joints are cut at right angles. For thermal expansion, a reserve is created: for each meter, 1 centimeter of material;

• the tape is pressed with a spatula in the groove, and at the same time, the pasting strips are removed in small sections.

Important!

1. In the corners of the frame, the tape is butt-jointed only.

2. To prevent impregnation, the tape does not shrink more than the allowable value.

After installing the sealing tape, the locking mechanism is adjusted: the clamp is changed by pins, which are located at the end of the sash.

Adjustment is made with a hex wrench. The pressure increases when the trunnion head is set in a horizontal position.

1. Wooden windows

The Swedish method of warming such windows using the EuroStrip technology is in great demand. It has the following advantages:

• there is no need for annual window insulation;

• after ventilation, the tightness of the windows is not violated;

• increases the service life of the frames;

• high degree of protection against dust and street noise.

For insulation, two types of tapes are used: rubber and silicone.

By the way, branded Swedish silicone seals are easily inserted into the groove and last up to 20 years.

Installation is carried out in the following sequence:

• the sashes are removed from the hinges and inspected. Decayed areas are identified, and then restored;

So, both types of window insulation tapes deserve attention. Which one is better depends on the state of the window.

If you choose the right one, then the insulation will quickly pay off, and the apartment will always be warm and comfortable.

Joints, seams of any structures are the most vulnerable places. The same can be said about the windows installed in the window opening. It is the mounting seam that will be the most weak point throughout the structure. Through a poorly laid seam, heat can escape, moisture and extraneous sounds from the street can penetrate, and finally, the condensate that forms during the temperature difference will accumulate inside the insulation and worsen its characteristics, leading to destruction. The description of the characteristics of the mounting seam and the technology of its installation is given special attention in GOST. On the this moment GOST 30971-2012 is valid.

Technology features. Why you need vapor barrier tape

According to GOST, the assembly seam must be three-layer. Each layer has its own function:

1. The middle layer - the main one - provides heat and sound insulation due to the porous structure.
2. The outer layer protects against moisture coming from the street (it removes it) and from UV rays.
3. The inner layer is a vapor barrier. In fact, it traps heat in the house and does not give steam that accumulates in inner space rooms, penetrate inside the insulation layer.

Thus, compliance with the technology of the device of the seam is necessary in order to prevent the penetration of moisture, the formation of condensate, to improve heat and soundproofing properties. Refusal to install insulating layers will reduce the cost of installation and construction by about 15-20%, in general, but GOST does not allow such cases.

Classification of vapor barrier for windows

To install a PVC window, a vapor barrier tape is used in all its variety of varieties and a diffusion vapor-permeable tape.

Tapes can have one or two adhesive surfaces. The former are installed on the frame itself, the latter can be installed in window opening, gluing them to the wall and to window profile. The range is divided into winter and summer options. Summer ones are designed for installation at temperatures from +5 degrees to +35 degrees, winter ones - for installation at temperatures of +5 degrees and below. Moreover, when installing in winter, it is necessary to warm the surface of the window opening.

The tape should be approximately 5 cm wider than the installation seam.

According to the material of manufacture, two types of tapes are distinguished:

1. Butyl rubber tape with a reinforcing layer of nonwoven fabric for sealing joints.
2. The tape is metallized, intended for installation in damp rooms.

Tape types

The functionality of the tapes is different, therefore, when installing windows, they use different varieties depending on the goals at each specific stage. The tapes should be reviewed.

The procedure for installing a vapor barrier tape

The vapor barrier tape is installed after performing the preparatory procedures: dismantling the old window, cleaning the opening from debris, dust, sealing and leveling large irregularities.

1. The window opening is wiped with a dry cloth and pre-installed window construction. In the process, the future location of the PSUL vapor barrier tape is marked.
2. The window is removed from the window opening and a vapor barrier tape is glued to the frame with a 5 mm indent from the markings. In the corners, the tape is glued end-to-end, for which the tape is initially cut off with an allowance that will go to fit. The surface must be degreased and dust-free.
3. Tape for slopes is glued to the side profiles and the top one. leave an overlap of about 10 cm.
4. Install the window. Foam the seam.
5. Assembly seam with outside covered with diffusion tape.
6. Before installing the tide, PSUL is glued along its lower surface.
7. On the seam in the lower part of the window from the inside, a metallized vapor barrier tape is fixed.
8. The tape on the window sill is glued last.

Able to increase quality characteristics design, which extends its life. On sale you can find such tapes that have an adhesive strip on one or both sides. It is designed to fix the tape to the window and wall. Among other things, such materials are classified according to the temperature characteristics during operation.

The first variety is suitable for the summer period and can be used at temperatures ranging from +5 to +35 ° C, while products intended for winter can withstand temperatures below zero degrees. The width of such a strip can vary depending on the tasks, which allows it to provide vapor barrier for joints of different sizes. When choosing a vapor barrier tape, you should take into account that its width should be 45 mm more than the installation seam.

general description

The described tapes for outdoor installation can be made of foam materials, they are required for and can be used in conjunction with plaster mortar, which improves the vapor barrier characteristics. There is a vapor barrier tape for windows on sale, the characteristics, the photo of which is presented in the article. Such a material can be based on butyl rubber, which is intended for sealing joints and installation on windows and the Product consists of a non-woven fabric, primed during installation, covered with plaster at the next stage, and painted at the final stage. This type has a self-adhesive layer. If you need a vapor barrier tape to be used when high humidity, then you should install the material for dry finishing of slopes, using a metallized variety.

Characteristics of foil vapor barrier tape

Foil hydro-steam and heat-insulating tape is glued to cleaned, dry, as well as previously degreased surfaces. The material itself is supplied in boxes, the dimensions of which are 420x420x600 mm. It must not be operated at temperatures below +10°C. The tapes are based on foamed polyethylene, which is laminated and metallized with a polypropylene film on one side, while on the other side there is a waterproof adhesive layer that reliably secures the material to concrete, brick, metal, plastic and wooden structures.

It is based on a material that consists of a closed cellular structure, it has low hygroscopicity and almost does not absorb moisture. Elasticity is provided thanks to polyethylene foam, which guarantees the sealing of seams with varying degrees bumps. high mechanical strength was achieved due to the presence of a polypropylene film, which is resistant to alkalis, organic solvents and acids. The reflective layer is protected from mechanical damage and oxidation. The adhesive layer consists of a water-resistant adhesive, which is created on the basis of synthetic rubber. It has superior adhesion properties different materials, which allows you to use the tape without pre-training surfaces.

For reference

You can not be afraid that the vapor barrier tape will stick together in a roll, as there is a protective siliconized layer on its surface. Such steam-hydrothermal insulation is used for seams, knots and joints of various building structures, including when installing window blocks, wood, metal, plastic and concrete products.

Material dimensions

The thickness of the film is 20 µm, while the length is 15 m, and the width can vary from 90 to 200 mm. 120 and 150 mm act as intermediate values.

Specifications

Vapor barrier tape for windows has a high coefficient of thermal reflection, which reaches 95%. The coefficient of thermal conductivity is very small, and at 20 ° C it is in the range of 0.038-0.051 W / m ° C. The heat absorption coefficient during the day reaches 0.48 W / (m 2 ° C). The thermal resistance is 0.031 °C/W, which is true for one millimeter of thickness. Professionals are sometimes also interested in such a characteristic as specific heat. In the case of the described one, this parameter is 1.95 kJ / kg ° С.

Under load within 2-5 kPa, the dynamic modulus of elasticity can vary from 0.26 to 0.6 MPa. Vapor barrier tape for windows has another significant advantage, which is expressed in the ability to absorb extraneous noise. Thus, the sound absorption is 32 dB. The material belongs to the combustibility group G2, smoke-generating ability - D3. The density of the material can be equal to 50 and 80 kg/m 3 .

Features of installing the sealing tape

Vapor barrier tape for windows specifications which were presented above, should be established according to the algorithm developed for this material. For internal sealing of the seam, a duplicated vapor barrier tape based on aluminum foil. For reliable and easy fixing, it has adhesive strips, which are located on both sides. The tape must be installed around the entire perimeter of the window, and then closed with slopes that are installed in a dry way.

To install the internal vapor barrier tape at the first stage, it should be cut into separate pieces, the length of which will be equal to the width and length of the window. To this value, you must add 10 cm, which will go to corner connections. Along the length, the tape is overlapped, the width of which should be approximately 1/2 of the width of the material.

Work methodology

The vapor barrier tape for PVC windows, the use of which is described in detail in the article, is released from the protective paper on the side of the duplicated strip at the next stage. The material can now be glued to the frame profile. This must be done in a taut state, and the inner edge of the adhesive layer must coincide with the inner edge of the frame. protective layer, which is on the butyl rubber coating, should not be removed at this stage.

In order for the adhesion of the adhesive strips not to be reduced, it is necessary to keep the structure open for a shorter amount of time, and before gluing the window surface must be wiped with a soft rag or paper towel.

Conclusion

Vapor barrier tape for windows, the density of which was mentioned above, must be installed in one piece, breaks at flat surfaces should not be. At the final stage, you need to install the tape on the windowsill, and then assemble the window with the sashes.

"Robiband" is a trademark under whose name high-quality component materials and hermetic products for windows are produced. Robiband window tapes allow you to quickly, reliably and efficiently seal window assembly joints, seams adjacent to sheet materials roofs, as well as to protect thermal insulation materials from negative impact moisture and provide vapor barrier.

For convenience, practicality and efficiency, vapor barrier tapes are produced in rolls of different widths. Window openings, after the frames are installed, may have different way finishes, therefore robiband tapes are produced both for dry finishing and for further painting and plastering.

basis vapor barrier tape is an aluminium foil, reinforced synthetic thread with the application of an adhesive layer (can be one- and two-sided), thanks to which you can easily, accurately and quickly fix the tape. For better adhesion, one side of the tape is reinforced nonwoven fabric. It protects the insulation from excessive saturation with moisture on the one hand and at the same time does not allow moisture from assembly seams pass through inner part window slopes.

It is only necessary to prepare the surface for applying the tape if the surface begins to crumble or absorb a little. In other situations, before applying the tape, it will be enough just to remove construction dust and other contamination from joints and crevices.

window tapes trademark Robiband are easy to use, they are distinguished by high manufacturability, performance characteristics, durability and endurance, despite various climatic conditions. In our online store you can buy reliable and practical vapor barrier window tapes, at wholesale and favorable prices.