Tape for window slopes. Vapor barrier tape and its types. Classification of vapor barrier tapes

Greetings!

Today we will touch on a controversial topic. Do I need a vapor barrier tape when installing PVC windows?

I think you will be interested to know what it is and why it is needed.

Vapor barrier tapes are designed to improve performance characteristics window structures. The effect of their installation is comparable to quality finish slopes or laying assembly seams. The installation of such tapes will help extend the functioning of windows; in no case should you refuse to install it.
Sealed tapes provide insulation of the mounting seam from excess moisture and steam, they prevent the condensate from moving to the slopes of the window structure. Installation of such a tape is necessary if there is a kitchen, a bath or a room with a pool.

Varieties of vapor barrier tape

There are two main types of material: with one and two adhesive surfaces.

Tape with two adhesive surfaces one side attached to the wall and the other to the window.

There is a classification of tapes on a seasonal basis:

• for summer, withstand temperatures - 5-35 degrees;
• for winter, suitable for temperatures below 0.

The width of the tape depends on design features profile, wide range of allows you to choose the option for seams different sizes. When choosing a tape, it must be taken into account that its width should be approximately 45 mm greater than the width of the installation seam.

The composition of the tape for outdoor use includes foam materials, in this case sealing compounds with plaster mortar are used, providing the necessary level of vapor barrier.

Vapor barrier tapes can be made from butyl rubber, they are used for sealing interpanel joints, as well as when installing windows and doors.
This tape contains nonwoven fabric, during installation it goes through priming, plastering and painting, this type also belongs to the group of self-adhesive.

There are also metallized vapor barrier tapes on the market, they are designed to protect the mounting seam of slopes for dry finishing from moisture.

Information about the self-adhesive sealing waterproofing tape in the video:

General information on the installation of vapor barrier tape

The process can be divided into the following stages of work:

• prepare the opening, clean it of dust, dirt and debris, insert the frame into the opening, temporarily not fixing it;
• on the frame, carefully mark the line for mounting the tape;
• make calculations, mark with a window, stick internal vapor barrier tapes on the removed frame (the protective paper strip covering the adhesive must remain in place, it should not be removed.)

In accordance with the rules, installation vapor barrier tape is made before the seam is foamed.
Before finishing, moistening and filling with mounting foam, protective paper stripes must be removed.

This is necessary to maintain the adhesive properties of the tape. When flush mounting is carried out from below, the strip is attached to the installation profile, on the sides and top to the ends of the structure.

The following features must be taken into account:

• external tapes are glued after complete polymerization of the mounting foam;
• installation of a vapor barrier strip under the window sill is carried out at the final stage;
• when installing a vapor barrier strip under a layer of plaster, special requirements are imposed on the outer coating of the tape, it must provide the necessary level of adhesion between the surfaces to be joined.

If there are gaps between the wall and the frame of the window quarter, a different technique is used: the uneven joint must be closed with a special flashing for windows, after which a vapor barrier tape is glued.
The vapor barrier tape is glued around the entire perimeter of the window opening in a continuous layer.
It should also be borne in mind that the use of finishing building materials in conjunction with a vapor barrier tape is recommended only if certain moisture permeability characteristics are observed.

Foil self-adhesive waterproofing tape

Self-adhesive strip GPL allows you to solve problems associated with steam, hydro and thermal insulation of joints, assembly seams, junctions and joints in a wide variety of building structures - door and window blocks, plastic, concrete and metal products.

The vapor barrier layer provides the necessary level of waterproofing, which prevents the formation of mold, fungi and spores, as a result, the life of any structure is increased.

Advantages:

• significant reduction in heat loss;
• significant reduction in energy consumption;
• ease of installation, achieved due to the adhesive layer;
• ensuring reliable fastening of the film on building materials of all types.

GPL - foil self-adhesive hydro-steam and heat-insulating tape(width 90,120,150,200 mm, supplied in boxes with dimensions 420x420x600 mm). The choice of width depends on the design features of the window profile.

Installation steps:

• clean, dry and degrease the treated surfaces, unwind the roll, cut the tape into pieces of the required size;
• after removing the protective film, stick the film on the surface, pressing firmly with your hands and without stretching, smooth it with a roller, avoiding the formation of air bubbles.

Works should be carried out at a temperature not lower than +10°C.

Self-adhesive vapor-, hydro-, heat-insulating tapes consist of foamed laminated polyethylene, on one side a layer of metallized polypropylene film is applied. Special waterproof adhesive on the other hand provides secure fastening material on structures made of metal, brick, concrete, wood, plastic, etc.

Since the tape is based on foamed polyethylene, which has excellent thermal insulation characteristics, the closed cell structure provides an extremely low level of hygroscopicity, which guarantees a high level of moisture resistance.

Polyethylene foam gives the film elasticity, which is very important when sealing joints with irregularities. Metallized polypropylene tape is designed to finish the outer layer.
The advantages of polypropylene film include a high level of mechanical strength, the material is also resistant to solvents organic origin, acids and alkalis. Thereby Reliable protection of the reflective layer from damage and oxidation is ensured.

Polypropylene film also has good vapor barrier properties.

The adhesive layer is a waterproof artificial rubber adhesive with increased adhesion to different materials, which allows the use of vapor barrier strips without surface preparation.
Siliconized film protects the adhesive layer from sticking in the roll.

Scope of application:

Dimensions and specifications

Material dimensions:

• thickness of NPE-Gazovka (mm) - 2;
• polypropylene film thickness (µm) - 20;
• width (mm) - 90/120/150/200;
• length (m) - 15.

Characteristics:

• thermal reflection coefficient - from 95%;
• coefficient heat absorption at 24 h, S - 0.48 W/(m2 °C);
• coefficient thermal conductivity, at 20°С, not more than - 0.038 - 0.051 W/m °С;
• specific heat capacity - 1.95 kJ/kg °C;
• thermal resistance, m2 - 0.031 ° C / W, per 1 mm of thickness;
• vapor permeability - 0 mg/(m h Pa);
• sound absorption, from - 32 dB;
• dynamic modulus of elasticity (under load 2-5 kPa) - 0.26-0.6 MPa;
• combustibility group - G2;
• smoke generating ability - D3.

T PVC window installation technology using vapor barrier tape in the video:

Installing the internal vapor barrier sealing tape

For internal sealing of the assembly seam, a vapor barrier (duplicated) strip is used.

The vapor barrier (duplicated) strip, made on the basis of aluminum foil laminated with a non-woven fabric, provides the necessary level of moisture insulation of the assembly seam, is a reliable barrier to moisture escaping to the surface of internal slopes.

Located on different sides two adhesive strips of butyl and glue allow easy and secure fixation. It is recommended to stick the tape around the entire perimeter of the window structure for finishing the slopes using the dry method. which will be carried out in the next step.

In the production of a vapor-tight doubled sealing strip, a non-woven fabric is used, covered with a self-adhesive plastoelastic mass made on the basis of sticky butyl rubber.
The main feature of butyl rubber strips is their heavy weight. When comparing butyl rubber tape and reinforced foil of the same width of 120 mm, it turns out that the reinforced foil is almost five times lighter.

The low weight of the foil greatly simplifies the installation process, which reduces transportation costs when transporting material over long distances.

Vapor barrier tapes with adhesive strips made on the basis of reinforced foil have high adhesive properties only if the surface of the inner slope is well cleaned and degreased. Butyl rubber strips are distinguished by better adhesion and a tighter abutment to the wall opening. All these characteristics must be taken into account when choosing one or another option, if necessary, you can always consult a specialist.

Installation steps for the internal vapor barrier sealing tape:

• cut the material into pieces, taking into account the length and width of the window structure (for corner connections), the joining of the strips along the length is carried out with an overlap, at least half of its width;
• remove the protective paper from the duplicated strip, stick it on the outside of the frame;
• the installation of the strip is carried out using a self-adhesive mounting strip in a taut state (without blisters and folds, maximum) to the outer surface of the window frame with inside ceiling horizontally and vertically.

The inner edge of the adhesive surface and the inner edge of the frame must exactly match, the protective tape is not removed at this stage.

The adhesive strip is highly resistant to cold temperatures while maintaining adhesive properties.

Adhesion deterioration can be affected by prolonged cold exposure of the acrylic adhesive tape with the release paper removed.

Working with cold window structures can also have a negative effect on adhesion, since when workers breathe, steam is released from the mouth, partially condensing on the surface of the block, as a result, the adhesion of the adhesive surface is reduced.

In order to prevent this phenomenon, the interval between the removal of the release paper and the actual application of the tape should be as short as possible. Before sticking the tape, you must also wipe the surface of the window unit paper napkin or dry cloth.

Proper application on PVC windows

Question: How to use a vapor barrier tape for PVC window structures correctly, what should be the temperature?
Answer: Installation of vapor barrier tapes on plastic window structures is carried out in the usual way in rooms with high level humidity (pool, sauna, kitchen).

The material provides protection of the installation seam from the penetration of steam and moisture emanating from the room, the tape thus prevents the condensate from escaping onto the window slopes. The vapor barrier strip may have one or two adhesive surfaces.
Tape with two adhesive surfaces is conveniently attached to the slopes and the window. All vapor barrier tapes are divided into winter and summer, the choice depends on the season and weather conditions.

Summer tapes are designed for operation at a temperature of 5-35 degrees, winter ones have proven themselves well in conditions below zero. Width plays an important role when choosing a tape, it should be 45 mm larger than the width of the installation seam. Compliance with this condition will help to achieve required level vapor barrier.

The technology for installing windows and gluing vapor barrier tape consists of several stages.

Necessary:

• clean the window opening from dust and dirt, install the frame without fixing it, mark the installation lines of the vapor barrier tape on the frame and the walls of the opening;
• pull the frame out of the opening, stick the tape on it without removing the protective strip from the area intended for sticking to the wall.

Installation of a vapor barrier tape on a plastic window is carried out in one piece, breaks are unacceptable.

At the next stage - the assembly of the window structure with sashes and the capital installation in the opening. At the final stage, the vapor barrier strip is glued to the window sill.

An example of installing PVC windows with vapor barrier films in the video:

Materials for installing window structures

Tape PSUL

The PSUL tape is intended for installation of window blocks, provides creation of the ventilated assembly seam.

The tape is made in accordance with GOST 30971-2002 "Mounting seams for adjoining window blocks to wall openings."

The material guarantees the durability and reliability of the assembly seam. PSUL tape is impregnated special composition self-adhesive polyurethane foam tape, which is supplied on rolls in a rolled state.

An extensive selection of sealant sizes allows you to choose the option for sealing joints of any size.

Tapes PSUL have a wide scope, are versatile and multifunctional.

The vapor barrier strip is used to protect fixed and movable joints from low temperatures, noise, moisture, dust and other adverse factors.

Typical areas of use:

• sealing joints, as well as moving joints of blocks, panels and small structures along building facades;
• sealing the gaps between the wall opening and the door / window frame;
• sealing of seams of adjacent sections of prefabricated structures;
• compaction of the adjoining space of translucent structures to the walls.

Sun Tape

The sealant is intended for finishing the internal slopes of window structures using the dry method (sandwich panels, plastic, drywall).

Vapor barrier tape BC is used to create a ventilated assembly seam.

The material prevents the movement of condensate to internal slopes windows, provides protection of the mounting foam from moisture from the room.

The BC belt is produced in rolls of 50 linear meters in length, the width has various standard sizes.

Tape BC+

The tape is specially designed for sealing the internal slopes of window structures in a dry way (sandwich panels, plastic, drywall).

The BC+ vapor barrier tape is used to organize a ventilated seam, the material prevents the condensate from moving to the internal slopes of windows, and protects the mounting foam from moisture from the room.

The adhesive layer is located along the entire width of the fastening of the tape, covered with an anti-adhesion film on one side, the adhesive strip for ease of installation is located on the other side.

BC+ tape is produced in rolls of 25 linear meters in length, the width is different.

The technology of using vapor barrier tapes when installing windows in a video:

VM Tape

VM tape is specially designed for sealing the internal slopes of window structures with subsequent application of plaster.

The VM vapor barrier tape is used to organize a ventilated seam, the material prevents the condensate from moving to the internal slopes of windows, and protects the mounting foam from moisture from the room.

The adhesive layer is located across the entire width of the fastening of the tape, covered with an anti-adhesive film on one side, the adhesive strip for ease of installation is located on the other side.

VM tape is produced in rolls of 25 linear meters long, width of different standard sizes.

Tape VM+

VM tape is specially designed for sealing the internal slopes of window structures with subsequent application of plaster.

Vapor barrier tape ВМ+ is used to organize a ventilated seam, the material prevents condensate from moving to the internal slopes of windows, and protects the mounting foam from moisture from the room.

The adhesive layer is located along the entire width of the fastening of the tape, covered with an anti-adhesion film on one side, the adhesive strip for ease of installation is located on the other side.

VM+ tape is produced in rolls of 25 linear meters in length, the width is different.

Hydro vapor barrier tape (HPL)

Self-adhesive tape GPL steam-, hydro-, heat-insulating. The composition of the material includes foamed laminated polyethylene, the tape is covered with a metallized polypropylene film on one side, a special adhesive is applied on the other side. The adhesive composition ensures reliable fastening of the tape on structures made of metal, brick, concrete, wood, plastic, etc.
The base is polyethylene foam, which has unique thermal insulation characteristics. The extremely low level of hygroscopicity is achieved due to the closed cellular structure, the material practically does not absorb water.
The elasticity of the tape is achieved through the use of polyethylene foam, which is important when sealing joints with irregularities. The outer layer is a metallized polypropylene film.

Polypropylene film is characterized by increased strength and resistance to solvents of organic origin, acids and alkalis. Thereby provides reliable protection of the reflective layer from damage and oxidation processes.

In addition, polypropylene film has excellent vapor barrier properties.

Siliconized film protects the sticky layer from sticking in the roll.
Scope of application: steam, hydro and thermal insulation of joints and assembly joints in building structures - door and window blocks, metal, concrete, wood and plastic products.

Hydro vapor barrier tape (GPL-S)

Hydro vapor barrier tape GPL. The composition of the material includes foamed laminated polyethylene, the tape is covered with a metallized polypropylene film on one side, a special adhesive is applied on the other side. The adhesive composition ensures reliable fastening of the tape on structures made of metal, brick, concrete, wood, plastic, etc.

For ease of installation, an additional adhesive strip is applied on the side of the film.

The base is polyethylene foam, which has unique thermal insulation characteristics. The extremely low level of hygroscopicity is achieved due to the closed cellular structure, the material practically does not absorb water. The elasticity of the tape is achieved through the use of polyethylene foam, which is important when sealing joints with irregularities. The outer layer is a metallized polypropylene film.

Polypropylene film is characterized by increased strength and resistance to solvents of organic origin, acids and alkalis.

This ensures reliable protection against damage and oxidation processes.

Scope of application: steam, hydro and thermal insulation of joints and assembly joints in building structures - door and window blocks, metal, concrete, wood and plastic products.

Rules for using the GPL tape in the video:

window tape

The assortment includes big choice high-quality window tapes, a variety of standard sizes and in required quantity. Indoor and outdoor window tape is widely used in a wide variety of construction and installation fields.

Window tape is a reliable connecting element, on the entire surface of which small holes are made in accordance with waterproofing standards. Wide selection sizes allows you to choose the option for a variety of designs.

Premium Window Tapes

Window tape is a reliable connecting element, on the entire surface of which there are small holes.

In the manufacture of perforated tape, high quality polyethylene foam is used, the scope of use is determined by the manufacturing technology. One of the areas of application is the installation of ventilation elements.

Effective filtration of dirt and dust from the outside is achieved through holes through which accumulated condensate also escapes.

Thanks to these features, a unique microclimate is created in the room, price for mounting tape while not very high, which is one of the advantages of the material.
The advantages of window tapes can also be attributed to the acceleration of the pace of construction, they are indispensable when fastening parts with different expansion coefficients.

The advantage of double-sided window tapes is elevated level elasticity, which is important at temperature extremes.

Vapor-permeable diffusion tapes are also produced, which are used to create effective ventilation, which have an excellent level of moisture resistance.

Diffuse tape made of artificial membrane material is indispensable in the process of waterproofing assembly seams and joints. The tape can have one or two adhesive strips; when choosing, it is necessary to take into account the tasks of construction and the features of the window structure. One of the strips is attached to a translucent structure, the other - to a slope or wall surface.
A wide range of sizes allows you to quickly select desired option for any building structure. Window tapes are equally well suited for both internal and external insulation during installation.

The innovative technology involves the implementation of insulation in several layers: that is why there is a distinction between external and internal window tapes.

Inner window tape made from flexible material, has adhesive strips, it is specially designed to protect the seam from steam and moisture from the inside.
While creating outer tape waterproofing standards were taken into account outside seam.

Both types of material allow you to achieve the required level of moisture insulation while maintaining vapor permeability and protecting the structure from condensate.

I hope that this article has helped you understand new window installation technologies and convinced you of the need to use vapor barrier tape.

Contact me - if necessary, I will consult on any issue!

For a comparative test of the characteristics of window tapes, see the video:

Vapor barrier tapes for windows good finish slopes and assembly seams will provide worthy characteristics of a window. In order for the window in your house to function well and for a long time, you should not miss such a moment as installing a vapor barrier tape. The hermetic tapes used to isolate the installation seam from the vapors and moisture of the adjoining premises prevent condensate from escaping onto the slopes. If you have a kitchen, a room with a pool or a sauna, then installing a vapor barrier tape on the windows is a must for you.

Varieties

Tapes can be either with one or two adhesive strips. Two adhesive strips are designed to fasten the tape with one side to the window and the other to the wall.

Installation of vapor barrier tape

Same way vapor barrier tapes are classified according to weather periods:

• for the summer period with air temperature from + 5°С to + 35°С;
• for winter period with temperatures below 0°C.

Tape width also varies depending on the needs, which allows for reliable vapor barrier of the joints various sizes. When choosing vapor barrier tapes, keep in mind that its width should be about 45 mm more than the width of the mounting seam.

Ribbons for outdoor work consist of foamed materials (for this work, well-sealing materials with plaster mortar are needed, which will provide the required vapor barrier of the outer layer).

The vapor barrier tape can be butyl rubber, for tightness of interpanel joints or for installation of door or window blocks. This tape contains a non-woven fabric. During installation, it is primed, plastered and painted. This type also self-adhesive.

For protection against high humidity mounting seam for dry finishing of slopes on the market there are metallized vapor barrier tapes.

Installed vapor barrier tape

General information on installing vapor barrier tape

• Initially, you need to prepare your opening: clean the inner and outer surfaces of the opening and frame from dirt, dust and other debris. The frame is inserted into the opening and is not temporarily fixed.
• After gently mark the line on the frame for attaching the vapor barrier tape.
• After carrying out the calculations and marking with the window, we remove the frame and glue our internal vapor barrier tapes. We do not remove the paper strip that protects the inner adhesive layer, which later attaches to the walls.

As a rule, the installation of a vapor barrier tape on the structure is carried out before the joint is foamed. Therefore, before finishing, moistening and filling with foam, you can remove the protective paper strips from the vapor barrier tapes. This will allow you not to lose the adhesive properties of the tape. If you are driving concealed installation, then from above and on the sides the tape should be attached to the ends of the structure, and from below to the installation profile.

• External heat-insulating tapes can be glued no earlier than the complete polymerization of the mounting foam.
• Installation of vapor barrier tape under the window sill can be done last. When installing a vapor barrier tape under the plaster layer, the tape must have an outer coating, which will provide the necessary adhesion to this plaster layer.

In that case if the window quarter with gaps between the frame and the wall, a different technique is used: an uneven joint can be closed with a window flashing, and a vapor barrier tape can already be glued onto it. Installing a vapor barrier tape on windows is installed in a continuous layer along the entire contour of the opening.

Do not forget that the use of finishing building materials in combination with a vapor barrier tape is allowed only if the moisture-permeable characteristics are observed.

To protect mounting seams in window openings from moisture, use a vapor barrier tape. It is made from butyl rubber or aluminum. This material is glued to the wet mounting foam at the seams, extending the life of the windows.

Is it worth it to spend money on protecting window seams?

When installing a window in an opening, remember that its service life is related to how competent the installation will be. Even the most quality constructions will not be used for a long time if the installation is incorrect. Due to improper work, moisture will gradually penetrate the walls, leading to the destruction of building materials and the spread of mold.

When installing the frame, consider a few important points:

• On the inside of the room, we make a denser layer of mounting solution (for example, foam).
• For quality termination we use three-layer protection for all gaps - the outer material saves from the effects of precipitation, the middle layer is responsible for thermal insulation, and the coating of the inner surface is for vapor barrier.

Vapor barrier provides reliable protection a heat-insulating layer from condensate, which is present not only in the bathroom, but also in ordinary room. In the process of finishing window slopes, we glue a special tape. The principle of vapor barrier is based on blocking the contact of moisture with the mounting foam, which forms the middle protective layer. For these purposes, materials with low elasticity and throughput for water and air . When installing windows on a vapor barrier, you can not save. Such neglect will lead to rapid wear of frames, plaster and finishing materials.

To protect the seam, special vapor barrier tapes are usually used. They come in the form of a coiled and compressed sponge-like material. Absorbing moisture, the material swells, sealing all existing gaps. The vapor barrier tape for plastic windows has a number of advantages:

1. 1. insulates moisture;
2. 2. it is spent economically, practically without waste;
3. 3. does not emit toxic substances;
4. 4. easy to stick;
5. 5. has a long service life.

Classification - what characteristics to look for

Tapes for moisture insulation are produced with one and two strips of glue. The second option allows you to process the joint of the window with the wall more efficiently. The material is classified by periods of use:

• summer (air temperature - 5-40 ° C);
• winter (temperature below 5 °C).

Depending on the nature of the surface to be treated, the tapes are produced in various sizes, so that any seams can be isolated. When choosing a material, keep in mind that it should exceed the gap by 4.5 cm in width. Foam tapes are suitable for work from the outside of the building, which will provide reliable sealing.

Moisture Insulation Tape

Adhesive finishing material made of butyl rubber, designed for processing window, balcony, door frames and joints between panels. It has a non-woven layer inside. After gluing, such a strip is primed, plastered, wallpapered or painted. There is a full-butyl vapor barrier tape made according to the Robiband system. It provides more quality processing assembly seam.

Metallized vapor barrier material is used for gluing seams with joints in rooms with high air humidity - bathrooms, baths, saunas. A layer of glue over the entire surface in this form greatly simplifies the work process. Manufacturers produce metallized tape different widths. When selecting material, add 45 mm to the width of the seam.

The tape, which has a protective strip of polypropylene, withstands well mechanical impact. In addition, it does not react with acids, organic solvents and alkali.

We understand the variety of types of tapes - VS or GPL?

First on the list is PSUL (pre-compressed self-expanding sealing tape). It provides a high-quality fit of the window frame or door frame to Wall. This tape is used for vapor barrier of external joints and seams.

The next material is vapor barrier VS. It is used for sealing seams when dry finishing is performed. For example, under sandwich panels, drywall, plastic surfaces, etc. The tape has a layer of glue across the entire width - this property greatly simplifies the installation process. There is an improved version - BC +. It is supplemented with an anti-adhesion film. This additional coating provides a strong adhesion of insulation to building materials.

Robiband VM tape for vapor barrier - next quality option seam material. It is used for internal works, and wet is applied on top plaster mortar. Vapor barrier VM + is a sophisticated option with better performance.

The last type is GPL (hydro vapor barrier material). It is produced from high quality polyethylene foam. The tape has one laminated side, as well as an additional metallized layer. Its second surface is completely covered with glue. This tape is universal, that is, it can be used for all types of work. Its variety is GPL-S tape, which has similar characteristics.

How to stick insulation - we work without errors

The vapor barrier material not only provides protection against moisture, but also has an alternative property when correct gluing- noise reduction. Applying a vapor barrier tape to the seams is done in one piece, there should not be any gaps. Before starting work, measure the length of the surfaces to be treated.

The gluing process consists of several steps:

1. 1. Clean the window opening from dirt, dust and debris.
2. 2. Before installation, remove the PVC window and wipe it with a dry cloth.
3. 3. Put the structure in place and mark on the frame and wall where the tape will be attached.
4. 4. The tape is attached to the window frame before the foam is applied to the seam.
5. 5. Remove the structure and stick a vapor barrier on its surface around the perimeter.
6. 6. Before installing the window in place, remove the remaining protective film from the adhesive surface.
7. 7. When pasting the material, do not allow the formation of wrinkles. This defect will allow drops of liquid to pass under the vapor barrier, degrading performance.

In order for the window structure to serve for a long time, its installation must be carried out with strict observance of the existing technology. Outer material for steam, heat and water insulation, it is necessary to glue after the mounting foam is completely polymerized. We process the seam under the window sill last.

If the tape is glued under a layer of plaster, then it must have a special layer that will ensure strong adhesion to the building material. Irregular joint between wall and window frame closed with a flashing, and a vapor barrier is glued on it. The use of building materials for wall decoration is permissible only if the requirements for water permeability are fully met.

If a metallized tape is used for vapor barrier, then additional reinforcement may be required when applied to a rough surface. To enhance the adhesive effect, self-adhesive tape with one or two adhesive strips is used. They are additionally treated with vapor barrier joints, eliminating and smoothing defects (places of peeling and wrinkling) formed during work.

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!

It is more convenient to use self-adhesive tapes on foam rubber for insulation.

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;

• when the temperature changes, the adhesive layer is destroyed;

• 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 you to close gaps of 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. window construction up to 15 %.

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

Self-adhesive tapes are made on the basis of synthetic rubber and have all its positive qualities: 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.

Since a standard window requires about 5 meters of self-adhesive insulation, 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 spots- these are sashes, slopes, window sills.

Insulation with adhesive tape

The technology of insulation is not very complicated. 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.

The replacement of windows in the house is always accompanied by the installation of protection for the junction of the frame and the wall. Mounting foam is applied between the opening and the frame - a traditional and proven thermal insulation. Foam regularly performs its role, but with extreme exposure to moisture or ultraviolet radiation, its quality may change for the worse.

In order to exclude the possibility of such a situation in advance and save yourself from replacement in the future, you should think about sealing the seams. To do this, you need to install additional insulation.

Full set insulation allows you to avoid freezing of the room and to minimize the penetration of moisture and noise.

The insulation of the junction of the wall with the window consists of three layers:

• Outer. Its function is waterproofing, which means protecting the premises from any weather manifestations - snow and rain.
• The carrier layer of insulation is located in the middle of the joint and is responsible for heat and sound insulation. Frost protection is provided by a porous material resembling polyurethane foam. Waterproofing prevents moisture from getting inside.
• The inner layer is also considered thermal insulation. Here the mechanism of heat conservation is different. This layer does not allow heat to escape from the inside, unlike the outer layer, which protects the premises from cold air flows from the street.

Window vapor barrier refers to the inner layer, but is not always included in the insulation system. One-sided self-adhesive vapor barrier tape or Double-sided tape for vapor barrier is additional protection. The need to use tape increases if the window is installed in a room with a high moisture content: kitchen, sauna, bath.

The installation of vapor barrier tapes is no more difficult than the installation of other types of joint insulation. However, a vapor barrier can help avoid subsequent serious problems with the entire window protection system. When installing a vapor barrier in individual cases you may need a couple of additional accessories, such as vapor barrier tape. This is worth considering.

Classification of vapor barrier tapes

Vapor barrier tapes are produced in two versions:

• tapes with one adhesive side;
• double-sided vapor barrier tapes.

The first type of tape is attached to window frame window. The second makes it possible to choose the place of attachment: both on the frame and in the opening.

In addition to differences in adhesive structure, tapes are divided into two types according to climatic performance:

• for predominantly warm average annual weather, "summer" vapor barrier films are suitable;
• in the presence of sub-zero temperatures, "winter" tapes are used.

Adhesive surface of vapor barrier tapes

All vapor barrier films are equipped with an adhesive strip. The absence of the need to independently apply glue eliminates the possibility of poor-quality fastening of the tape, as well as moisture ingress into the heat-insulating environment.

The material for the adhesive layer of the vapor barrier tape is butyl rubber or, in cases of high humidity, metal. Tapes containing a rubber film are used for windows, balconies and doors in almost all types of premises. The basis of such a vapor barrier is a non-woven fabric.

Types of vapor barrier tapes

The most common types of tapes, depending on the material:

• One of the most popular butyl rubber tapes is PSUL (pre-compressed sealing tapes), which are responsible for the external vapor barrier, the finishing of the external joints and the tight connection of the frame and the wall.
• Polyethylene tape GPL is made of foamed material. On the one hand, it is processed by lamination. The strip contains metal inserts and an adhesive part along the entire length and width. Due to its well-thought-out composition, it is almost universal and is recommended for insulating all types of door and window frames.
• Vapor barrier tape for aircraft windows. Suitable for insulating joints if a subsequent dry method of finishing slopes is planned. Usually used on plastic or plasterboard elements. The connecting tape protects the surfaces from the formation of condensate. The wide adhesive strip makes the process of installing the vapor barrier strip simple and fast.
• Vapor barrier tape VM. As well as other types of tapes, it is perfectly attached to window and door frames. Installation is carried out in sequence from the frame. The tape strips are overlapped to avoid possible heat leakage during operation of windows or doors.

Butyl rubber tape has a high specific gravity. PSUL tape weighs about 5 times more than a reinforced tape aluminum foil with their same width. The differences between the types of tapes are also in what surfaces they are usually used for. A thick rubber tape can be firmly attached to the wall, and for gluing with slopes there is no need to use heavy insulating materials. For this case, lightweight foil-reinforced strips are preferred.

GPL tapes

GPL - vapor barrier tapes that perform moisture protection as the main task. These tapes form the outer layer of insulation with an additional vapor barrier function.. Self-adhesive vapor barrier tape made of polyethylene foam.

Polyethylene foam has a porous structure, has good thermal insulation properties and almost zero hygroscopicity (does not absorb moisture). The presence of this material in the tape makes it elastic and provides high-quality sealing with any surface, including uneven.

On one side, the strip is laminated with a thin metal film, on the other side there is glue. Special moisture-resistant adhesive allows the tape to easily stick to any materials: plastic, metal, wood, brick, without requiring time-consuming preparation.

In general, polypropylene film has significant fracture and chemical resistance to both alkalis and acids. Thanks to these qualities, polypropylene vapor barrier for windows is operated without wear and oxidation.

Characteristics of the GPL

Vapor barrier tape GPL is characterized by:

• heat reflection - at least 95%;
• thermal conductivity - 0.04-0.05 W / m ° C;
• specific heat capacity - 1.95 kJ/kg °C;
• zero vapor permeability;
• sound absorption - from 32 dB.

The tape is transported in the form of a twisted roll. Gluing of the layers does not occur; a paper film is laid to prevent it.

Dimensions of GPL self-adhesive tape

The dimensions of the insulating strip for plastic windows are characterized by width, length and thickness:

• The width varies depending on the needs of the buyer. Standard sizes- 90/120/150/200 mm;
• Typical length of a roll of a tape – 15 m;
• The thickness of the tape has two layers:
  • the first insulating layer is non-crosslinked polyethylene foam, 2 mm;
  • the second is the vapor barrier itself - a polypropylene film, 20 microns. This thin film relative to the entire thickness of the layer is enough to prevent condensation from falling onto the slopes of the window opening, and the entire window protection system from weather manifestations works better.

Installation of vapor barrier is carried out at a temperature of 10 ° C.

Installation of vapor barrier tape

Installation of a vapor barrier tape is built in several stages:

• Preparation and processing of a window / doorway. The surface of the walls of the opening and the frame must be free of dust. The less pollution, the more reliable the thermal insulation.
• It is necessary to mark the line for attaching the vapor barrier tape. To do this, you need to put the frame in the opening, without fixing it, and visually calculate where you want to draw the line.
• After that, the frame is removed back, and the vapor barrier strip is glued along the marked strokes.
• The paper films covering the adhesive part are removed last.
• The installation of the vapor barrier tape is completed by covering the joint with foam.
• If it is necessary to install a tape in the area under the window sill, then it is performed at the very end.

When installing a vapor barrier tape, subsequent application of plaster may be expected. In this case open part tapes must be made of a material that provides the best adhesion of the insulating strip and decorative coating between themselves.

The vapor barrier tape must be glued along the perimeter of the frame in a continuous layer, without gaps. Optimum thermal insulation contributes to the selection finishing materials, bordering on insulation, which have moisture permeability that is permissible in this case.

Vapor barrier accessories

In the installation of a vapor barrier, minor difficulties may arise - overlaps of strips and overlaps. You can consider this not dangerous for tightness, and as a result, you are likely to get problems with heat and vapor barrier. Therefore, when installing a sealed vapor barrier for PVC windows, you may need additional accessories, such as self-adhesive tape. In some cases, glue is the most convenient.

If the vapor barrier metallized tape is attached to a non-smooth surface, it may require additional reinforcing force.

Self-adhesive tape can be the same as the vapor barrier sheets themselves, one or two-sided. They are purchased if necessary to additionally glue the joints of the vapor barrier strips, correct damage to the tapes.

In the case of double overlap, adjoining the tape to wood or metal, double-sided tape is more often used. With a double overlap, i.e. when attaching a strip to pipes or doors, it is more convenient to use one-sided.

The cost of 1 running. m. vapor barrier tape averages from 25 to 45 rubles. The price tag for additional products, for example, double-sided tape, is quite high (up to 1400 rubles). Therefore, in the matter of their acquisition, everyone is guided by the installation process, the desired degree of confidence in the operation of the system and the possibility of spending money.

Video: using a vapor barrier film for plastic windows

In general, the vapor barrier this moment not considered mandatory. Its installation is often determined by the choice between reinsurance against possible unpleasant situations or savings. Some manufacturers and buyers choose a budget option, which does not include vapor barrier on windows. However, a wide range of products for vapor barrier allows you to carry out the most suitable choice, while not losing on the safety of operation of the entire window system.