Scotch tapes, Adhesives and Sealing tapes for roofing and renovation works, DELTA, TYVEK and others. How to glue vapor barrier sheets? Vapor barrier joint tape

In order to turn the vapor barrier protection into a continuous shell without gaps and tears, it is required to connect its panels in a special way. Only then will it be able to perform its functions flawlessly.

In the formation of joints, scotch tape is used for vapor barrier, on one or both sides of which a strong binder is applied. Now builders are offered an extensive range of adhesive tapes for vapor barrier materials, for a competent choice of which information is needed on the characteristics and properties.

Steam insulation is made of polymer films designed to prevent vapor penetration into the thickness of the insulation systems. These are thin roll materials with minimal, and most often practically zero, vapor permeability. Due to their high structural density, they become a reliable barrier against the movement of warm air containing suspended water.

The vapor barrier carpet is always laid in the first layer in the roofing cake, if we consider the system of arranging the insulated roof from the side of the premises. It is he who must be the first to meet and, if possible, completely repel steam attacks or reduce to a minimum what manages to penetrate the vapor barrier.

Otherwise, the water will settle in the insulation and will aggressively destroy both the thermal insulation and the surrounding building structures. A fungus will start inside the system, growing its colonies at a fantastic rate. Wet insulation will not be able to protect the house from heat loss, because the water soaked in it actively contributes to heat loss.

By themselves, vapor barrier films do not allow evaporation to pass at all, if they do not have any damage. However, steam can seep through weak or nonexistent web joints if the bonding of the strips during construction was neglected.

You can refuse to use adhesive tape only in the case of a waterproofing device cold roof... The specifics of styling allows you to do this. The sheets of the waterproofing film are laid from bottom to top, it turns out that each subsequent strip overlaps the underlying one. As a result, the water flows down as if on fish scales.

Vapor barrier protection is arranged in a slightly different way, although the principle is still the same: water should flow down the insulation carpet, without returning to the room and not lingering in the insulation. The canvases are laid across the rafter legs, but they do not start from the cornice line, as is the case with the organization of waterproofing, but from the ridge run.

If we consider the vapor barrier carpet from the side of the room, it can be seen that each underlying strip overlaps the lower edge of the upper panel by 10 - 20 cm.This overlap is necessary so that moisture or glass penetrating into the insulation system through the ventilation gap downwards, or removed together with the air circulating through the air vents ...

The line connecting the strips of the vapor barrier film along the overlap must be airtight so that moisture suspended in the air does not penetrate through this very vulnerable area. This is why we need a tape for gluing vapor barrier panels, the correct choice of which depends on the conditions of installation and the upcoming operation of the roof with a vapor barrier carpet.

Features of the construction of protection against steam

Our ancestors made the oldest type of vapor barrier from oily clay. It was smeared with a continuous layer on the ceiling from the attic side, a layer of dry earth was laid on top - the result was significantly more effective than the new options for thermal insulation.

Over time, clay was replaced by glassine, which does not differ in particular wear resistance and resistance to external influences. He could not hold water on himself, i.e. was completely unsuitable for the construction of a roof in the rainy season, in the heat suffered from UV rays. In addition, it could easily have been damaged during installation, which slightly increased the construction budget and forced a considerable part of the work to be redone.

Instead of fragile glassine, polyethylene films were first used, then their analogs made of polypropylene. Now, on the same polymer basis, a wide range of specialized vapor barrier materials are produced with optimized strength properties, improved characteristics, increased resistance to atmospheric and mechanical influences.

All vapor barrier materials currently used in construction can be divided into the following three most common groups, these are:

• Films made of polypropylene or polyethylene, including reinforced versions. They are mainly used in insulation schemes ceiling slabs, where they fit on a horizontal plane, therefore they do not need gluing. Used as waterproofing on cold roofs.
• Membranes with anti-condensation properties. Polymeric materials with a rough inner surface installed against the movement of vapors. The opposite smooth side resists water seepage from outside. Used in the arrangement of attics.
• Foil membranes. Polymer films with foil on the inner side, a layer of thermal insulation is often confined to the outer surface. They play the role of a vapor barrier and a material with reflex properties; they are installed in Russian steam rooms, Finnish saunas and other rooms with a similar humidity-temperature operating regime.

The sheets of foil and anti-condensation protection against steam are glued together with adhesive tape, one or both sides of which are equipped with an adhesive composition. Let's take a look at how the joins are made, where and when the gluing is done, what methods are used.

General rules for laying

In order for the vapor barrier to flawlessly cope with the function assigned to it, it must be properly installed. The main rule, which requires strict adherence, says: vapor barrier materials are stacked as the roll is rolled out. There is no need to rewind and turn over the material.

In addition, for convenience in performing work, the manufacturer indicated the laying side and the amount of overlap. In this case, there is no need to experiment, because the developers of the system have thought over and provided for all the nuances.

In order to avoid the spontaneous formation of condensation in the body of the roofing cake, it is necessary to arrange under-roof ventilation. Its organization is carried out in the case of laying ordinary polypropylene and polyethylene films in front of the insulation mansard roofs... To do this, by attaching the counter-lattice to the rafters from the side of the premises, ventilation ducts are formed - air vents.

If membranes are used in the arrangement of insulated attic roofs, in the structure ventilation ducts not necessary. These materials are allowed to directly contact the insulation without the risk of moisture from the condensation formed inside the system.

For the construction of any type of vapor barrier, it is advisable to wait for dry calm weather, regardless of whether the material is able or not capable of resisting the pressure of the water column. Vapor barrier materials are attached to rafters or laths, the distance between the supports for fixing should not exceed a limit of 1.2 m.

The actions for the device include several equivalent stages that do not depend on the material used in the construction:

• Rolling out the vapor barrier membrane. The starting strip of material is rolled across the rafters. They begin work from the line of the ridge run, continue with longitudinal panels down to the cornice.
• Fastening the film to the rafters. TO truss structure the vapor barrier is attached with glue, staple staples or galvanized nails with a large flat head.
• Sag compliance. When fastening to the rafters, it is necessary to form a small slack so that the material is not tightly stretched between the attachment points. The membrane should "sag" by about 2 cm per meter. It is so necessary that with standard movements for sawn timber, they do not break the film.
• The location of the overlaps. The sheets of material should overlap each other horizontally by 10-20 cm, vertically by 15-20 cm, depending on the manufacturer's recommendations. Overlaps should be placed over the rigid elements of the rafter system.
• Solid fixation. After the initial fastening of the membrane during the laying period, it should be thoroughly fixed by means of a lathing device.

The crate, erected in front of the vapor barrier, forms the next row of ventilation ducts required to provide a distance between the attic lining and polymer material... At the same time, the laths serve as a base for installing the cladding.

Types of adhesive tapes for vapor barrier

When choosing a vapor barrier material for the construction of a roofing cake, you need to remember that the adhesive tapes for connecting the panels and the film must be produced by the same manufacturer. Often, when using products of different brands, there is no gluing effect or it lasts for a short time.

Joining of membranes is made with a connecting tape specifically for vapor barrier, because it excludes the formation of capillary moisture in the connection zone:

• panels laid next to each other;
• fit to the elements passing through the roof - chimneys, antennas, communication risers;
• adjoining adjacent building structures, including parapets, panoramic windows, doorways and etc.

The choice of vapor barrier material to protect structures from vapors depends on the conditions of the upcoming operation, which must be taken into account before purchasing. In addition, you need to carefully study the instructions for the device of the vapor barrier, so as not to collide directly on the object with the impossibility of installation.

Single-sided tape for tight connections

Adhesive tape of this type is used to connect the sheets of vapor barrier material by overlapping the edge over the edge that goes over the already installed adjacent panel.

Single-sided tape with the DELTA® logo and the nomenclature TAPE FAS 60/100 is a 6 cm wide strip with a laminated cardboard backing and an acrylate adhesive on the working side. This tape must not be used for bonding film materials made of chlorinated paraffin wax, it must not be glued to recycled boards. It is not suitable for installation in swimming pools and bathrooms.

It is used exclusively for carrying out work inside the equipped attic or other room. Suitable for joining vapor barrier with adjacent smooth metal, wood, plastic surfaces.

In the line of domestic products, the analogue is Izospan SL - an adhesive tape designed for hermetic connection of vapor barrier strips.

Self-adhesive self-expanding option

In the line of the German company Delta, such products are represented by a tape with the nomenclature name DELTA-KOM-BAND K 15. It is used in the formation of sealed, as well as air-tight junctions to adjacent structures, walls of ventilation shafts, brick chimneys.

In the state offered to the buyer, the tape is compressed, as a result of which the width of the offer is only 4 cm, after straightening the material, the width of the strip reaches 17 cm.It is made of foamed polyurethane, reinforcement is arranged on one side of the tape and an acrylate adhesive is applied.

This type of adhesive tape is suitable for outdoor use because can be used for adhesion to damp and even frosty surfaces. It is first glued to the film, and then pressed against the wall with a rail.

Elastic self-adhesive tapes

To seal passages through the roof of communication risers, antennas, narrow steel pipes, one-sided bitumen-rubber adhesive tape DELTA-FLEXX-BAND F 100 and DELTA-MULTI-BAND M 60 / M 100 is used.

It is a universal adhesive expendable materials, suitable for work both inside and outside the building. They are used in the arrangement of penetrations, compensate for linear movements of building structures relative to each other, allow their movement without loss of tightness of the equipped junction.

Universal tapes are used to repair damage to all types of insulating films, but are only suitable for gluing to smooth surfaces. Since they are designed for outdoor work, during the development they were reported to be resistant to UV and other atmospheric negative.

The Izospan product range includes a one-sided, weather and UV resistant tape with the Izospan ML proff marking.

Double-sided tapes and their application

The German-made double-sided tape, resistant to atmospheric negative, with the nomenclature name DELTA-BUTYL-BAND B 15 is made of butyl rubber. Tape with two adhesive sides is used to join vapor barriers and to repair defects such as breaks and cuts.

Double-sided adhesive tapes for insulating films are used for carrying out both outdoor and internal species works, suitable for the installation of abutments to roof windows, rafter legs and hard flooring. When installing abutments to building structures, the installation of pressure plates is required to ensure flawless fixation.

Izospan KL has similar characteristics in the line of Russian adhesive tapes. This adhesive tape is glued over the rolled vapor barrier strip, retreating from its edge the distance indicated by the manufacturer. First, only the lower anti-adhesive paper is removed, after gluing the upper one is removed, on which the next vapor barrier is applied.

Metallized Vapor Barrier Tapes

In the combination of vapor barrier materials with a metallized side, aluminum coated scotch tapes are used. The product from the German brand of roofing materials is called DELTA-POLY-BAND P 100.

This is a one-sided tape, it is made of polypropylene, from the outside it is coated with metal spraying. The width of this type of adhesive tape is 10 cm, the ability to bond significantly exceeds the properties of conventional tapes.

In the line of Russian products, Izospan FL Termo is distinguished by equal qualities, the specified adhesive tape allows you to create a single heat-reflecting plane like a German product.

Adhesive tapes with a metallized side serve well in rooms with non-standard operating humidity and temperature conditions. They are used to equip steam rooms of Russian baths and Finnish saunas supplying dry steam. The adhesive tapes are laid on dried and degreased vapor barrier sheets.

Video review of adhesive tapes for vapor barrier

Analysis of the qualities and comparison of tapes for gluing vapor barrier sheets from different manufacturers:

Video instruction on the use of Delta single sided tape:

Guidelines for attaching a vapor barrier in a window opening:

It is worth familiarizing yourself with the specifics of the installation and operation of adhesive tapes for connecting vapor barrier materials, if you do not want to repeatedly redo your own work, endlessly repair the roof and spend money on purchasing new components of the roofing pie.

To provide reliable protection from the effects of moisture and steam, you should responsibly approach the installation of the roofing pie, select the necessary waterproofing components, including glue, tape or vapor barrier tape and some other components. The performed protection must fully meet all the stated requirements. It is recommended to approach its implementation no less responsibly than to the selection of roof coatings. An important role is played by the installation of vapor barrier films and waterproofing membranes, which will be discussed below.

Fixation of film materials

The main tier of the film is laid along the entire eaves of the roof, observing the required sagging relative to the rafters at the level of 10-20mm. Experts advise creating a space between adjacent rafters no more than 120cm. It should be noted that the height of the air gap of the thermal insulation components and the waterproofing film should be about 40mm.

The very laying of the waterproofing is done in a horizontal direction, starting from the cornice and reaching the ridge, observing an overlap of 100..150mm. The maximum sag of the film relative to the rafters should be no more than 20mm. The connection of the edges of the insulation is made with an overlap, with the obligatory gluing of the joints by means of an appropriate tape, tape or glue.

The vapor barrier film is fixed over the entire working surface with a construction stapler. The use of galvanized nails is allowed. It is important that the hardware has a wide head, which will not damage the material.

Each subsequent row of film material is laid with an overlap of up to 200 mm, and this value fluctuates, depending on the slope of the roof.

On top of the waterproofing, counter-lattice bars are installed, while their minimum section should be at least 40 * 25mm, with an arrangement interval of 100-150mm. Next, the installation of the lathing is done.

In the ridge part of the roof, a gap of up to 50mm is guaranteed between the corresponding axis and the waterproofing membrane. It is necessary to perform a ridge duct, which is called a rupture of the insulating component under the corresponding part of the roof, which provides ventilation of the hidden space.

In the area of \u200b\u200bfixation to the roof of all kinds of masts, a chimney or an antenna, usually the film materials are cut and glued to the nearby elements of the lathing. For this purpose, either scotch tape is used for vapor barrier, or self-adhesive tape on a double-sided basis. In the case of roof windows, it is recommended to follow the manufacturer's instructions when providing waterproofing.

When working with perforated film, observe correct location sides of the vapor barrier with the perforation oriented to the outside. In another version, there is a high probability of moisture penetration into the roof, the formation of steam inside, which will lead to the opposite effect. Root rot and leaks will be found very soon.

How is the anti-condensation film mounted?

The sequence of actions is as follows:

• 1. Upon completion of the installation of the rafters and insulation, the film is fixed. It is best to wait for dry weather for this.
• 2. The maximum rafter distance should be within 120cm.
• 3. The anti-condensation film unfolds in one position when its surface is facing the bottom of the absorbent part. The corresponding base is positioned so as not to touch the insulating elements.
• 4. Fixation is provided by means of staples of a construction stapler, glue, or galvanized nails with a large head.
• 5. Laying is carried out sequentially, starting from the eaves and reaching the ridge, with overlapping overlapping, in separate horizontal layers. The magnitude of this overlap in the horizontal plane is up to 150mm, in the vertical part from 200mm.
• 6. The joints of the film are displayed on the rafter parts of the structure.
• 7. The joints are fastened with a special adhesive tape for vapor barrier or a tape for waterproofing.
• 8. Be sure to place the film evenly, without any hitch. The formation of a sag of up to 20 mm in the central part of the rafter space is allowed, due to which the removal of steam and condensate of wooden components is guaranteed.
• 9. It is recommended to keep the maximum distance relative to the insulation and the film in the range of 40..60mm.
• 10. During installation, it should be understood that the lower part of the waterproofing is intended to drain water into the appropriate gutter.
• 11. At the end of the work, the installed coating is fixed by means of wooden slats section 30 * 50mm with galvanized hardware. A roof lathing is placed on top.

Features of installing a waterproofing film

Here are the main points to pay attention to:

• 1. It is unacceptable to install the film so that during its operation moisture from the upper part gets on the insulating layer of insulation.
• 2. It is important to properly handle the junction of the penetrating elements, be it chimneys, antennas, ventilation ducts and others. For this, trapezoid-shaped cuts are provided at certain points. The valve of the upper and lower position is fixed to the horizontal component of the crate with a sealed tape, or to a penetrating element. The lateral elements are retracted to the upper point and fixed to the penetrating component in a similar way.
• 3. In the case of roof windows, adhere to the manufacturer's instructions for quality installation of adjacent materials.
• 4. Roof with inclined ridges and hipped roofs requires laying the film about the longitudinal axis of the corresponding element.
• 5. Strips with a horizontal arrangement on the pitched part of the roof are mounted from the outside with overlapping.

Installation of superdiffusion and diffusion membranes

With the help of these components, ideal protection of the home from moisture is provided, since their vapor-permeable qualities are much higher than other materials. The membranes with the maximum performance are placed directly on the insulation, without the need to provide a bottom space.

In most cases, they are limited by the upper ventilation gap within 40 mm, relative to the crate and the membrane itself. Laying is carried out horizontally, from the bottom of the roof to the ridge.

Fixing the membrane to the rafters is carried out using a construction stapler, galvanized nails with a wide head, or glue for vapor barrier, with counter-rail fasteners. If the thermal insulation is installed directly to the ridge, the membrane will overlap by 200 mm.

Having treated the crate with an antiseptic and other protective compounds, before starting work, you should make sure that the wooden elements are completely dry. At the end of the installation of the film, the counter battens are mounted on the crate, otherwise the steam outlet is not guaranteed.

All subsequent installation steps are similar to those with a waterproofing film, where galvanized hardware with a wide head, glue, or stapler brackets are used to fix the membrane.

Joining of membranes is done with adhesive tape for vapor barrier, which protects against the effect of a capillary of moisture where the overlap is made. Areas of intersection of the roof with penetrating structural elements, including chimneys, antenna posts and ventilation ducts, are subject to insulation. For these purposes, a sealing tape is used. Relatively roof windows - are guided by the indication of their manufacturer.

When choosing the type of membrane, you should always study the instructions for its application and operation in order to choose the correct working side.

Installation of a volumetric diffusion membrane

Here is the following sequence of actions:

• 1. Laying is carried out parallel to the eaves overhang, with placement on the solid part of the flooring.
• 2. On the upper edge, fixation is carried out using roofing nails or staples.
• 3. Each next roll is installed with an overlap of the fixing point by 70mm.
• 4. The place of the overlap is treated with glue or an appropriate compound
• 5. On top of the waterproofing film, a self-adhesive sealing tape is fixed, often made of polyurethane foam. This guarantees the necessary protection in the area of \u200b\u200bmounting the counter-grill using nails.
• 6. It is allowed to carry out work at an air temperature of up to -5 degrees.

Products and manufacturers

It is necessary to fasten both the joints of the films and the places of their contact with walls, pipes, as well as with roof structures.

Below, our experts have collected the most popular brands of materials for joining hydro and vapor barrier films, which allow you to create a completely sealed insulation.

Vapor barrier adhesive

DELTA TIXX adhesive for air and vapor tight bonding of all types of vapor barrier membranes and films to various structures made of concrete, wood or brick. The use of a clamping bar is not required. Volume: 310ml.

Vapor barrier tapes

1. Aluminum tape Izospan FL Termo is used to connect the edges of Izospan films of the FB, FS, FD, FX brands. It can be used in rooms with high temperatures: in baths and saunas. It can also be used to eliminate minor damage to fabrics of Izospan FB, as well as Izospan FS, FD, FX. Width 50mm.

2. Special double-sided adhesive tape D-TACK Tacoduo is used for hermetic bonding of waterproofing and vapor barrier films, as well as for the organization of hermetic adhesion of waterproofing and vapor barrier to wooden and metal roof structures. Width 30mm.

3. Double-sided adhesive tape Izospan KL + reinforced with a diagonal mesh and is used to connect hydro and vapor barrier films to each other, as well as to seal the junctions of hydro and vapor barrier to other elements of the roof, frame walls, floors. Width 30mm.

4. Tyvek Double-sides Tape has a heavy-duty adhesive backing and is used for sealing and bonding membranes in extreme humidity conditions. Width 50mm.

Scotch tapes for vapor barrier

1. Aluminum adhesive tape Izospan FL is intended for bonding of any brands of "Izospan" waterproofing and vapor barrier films. Width 50mm.

2. Universal single-sided tape DELTA INSIDE-BAND I 60 with high adhesive force for tight connection of vapor barrier films in the overlap zone from the front side. It is used only indoors, and also it is not allowed to use it with waterproofing under-roof films. Width 60mm.

3. Scotch tape Juta Yutafol SP1 is used for a hermetic vapor-tight connection of the overlap of two layers of the film and for fixing the film to the details of the building structure. Width 15mm.

4. Special tape D-TACK Tacoflex is designed to create a vapor barrier circuit and is used to seal penetrations - ventilation pipes, glued with an overlap. Width 50mm.

5. Aluminum single-sided tape DELTA POLY-BAND P100 is used with DELTA-REFLEX vapor barrier film. Width 100mm.

6. Tyvek Metallized Tape is made from Tyvek and acrylic adhesive... It is used for sealing the overlaps of abutments to pipes, windows and doors, as well as for repairing Tyvek sheets. Width 75mm.

Conclusion

One way or another, in the absence of experience and knowledge, it is better to entrust the installation of the roofing film and membrane to specialists in the relevant field, however, the information provided will allow independently, reasonably control the construction, make the necessary adjustments and comments to the performers.

Laying of roofing films and membranes

Vapor barrier tape is used to bond the vapor barrier joints. Vapor barrier tape or vapor barrier glue can also be used.

How to glue the vapor barrier film on the roof?

The technology of laying a vapor barrier layer provides for gluing the canvases together. In modern construction, special tape is used for these purposes. If you choose a simple stationery material, then there is a threat of moisture getting into the insulation. Since there is a large amount of tape in stores, let's figure out how to glue the vapor barrier.

The importance of sealing joints

The vapor barrier film is laid on the inside of the room, under the thermal insulation. Its tasks include protecting thermal insulation from moisture ingress from residential premises. The film itself does an excellent job, but fumes can penetrate through the joints of the sheets. To do this, each joint is insulated with special tape.

If you do not seal the joints, moisture will penetrate to the insulation, due to which it will begin to lose its insulating properties. Wet mineral wool protects from cold 60% worse than dry.

In addition, when gluing the vapor barrier in the house itself, comfortable humidity and microclimate are maintained. This is because the insulation absorbs fumes from the air and makes it drier. Lack of water can lead to skin and respiratory health problems.

It is necessary to glue the joints of the vapor barrier layer when building a new house or overhaul roofs. And it is also recommended to check the quality of the roofing cake when buying a house, whether it is old or modern building... Scotch tape may eventually come off from old age or due to poor-quality conduction installation works... In such a situation, you have to undertake repairs and here it is important to choose the right type of adhesive tape and the manufacturer's company.

Varieties of adhesive tape

Construction tapes have two factors by which they can be distinguished. First, there are different structural solutions. They produce one-sided tape for gluing the vapor barrier butt-end, and double-sided tape for overlapping canvases. Secondly, there is a wide variety in materials than to glue the film from which the docking tapes are made:

1. Aluminum. Scotch tape 50-100 mm wide, consisting of a layer of aluminum, protective paper and glue. The thickness of the metal in the film is not more than 40 microns, but it provides sufficient strength for work. This option is not suitable for all types of vapor control.
2. Reinforced aluminum. It adds a reinforcing layer that increases the strength of the material. The width remains the same as in the previous version.
3. Polypropylene. Most a budget option for gluing, which can be found in any store. Usually the width does not exceed 50 mm and the thickness is 100 microns. Not recommended for use in construction because of the high probability of peeling.
4. PTL tape. Consists of several layers: plastic wrap on the outside, fabric in the center and rubber-based glue on the working side. Quite rare scotch tape 200 microns thick.
5. Butyl rubber. The most suitable option for connecting a vapor barrier material to each other. Suitable for most materials. Has a width of 15 to 50 mm.

Connecting tape brands

In order to choose the appropriate option, it is not enough to know only the technical characteristics or the material of the adhesive tape. Coming to the store, you already need to know the brand of adhesive tape and call it to the manager. Below we will analyze some of the popular options, based on this information, you can decide exactly what is right for your tasks.

Izospan SL

This tape is used simultaneously to seal the joints of the hydro and vapor barrier. It was designed to seal the abutment of protective films to structures passing through the roofing pie attic floor... For example, it is used near chimneys, pipes and ventilation ducts or dormers.

In addition, its work surface adheres perfectly to the walls and provides a reliable, airtight connection. Therefore, the Izospan SL adhesive tape is used to process the edges of the vapor barrier layer in the attic.

When it comes to performance, the most important piece of information is adhesion strength. If we talk about the connection with concrete, then the tensile strength is 0.1 MPa. But it is not recommended to glue to metal surfaces, since adhesion decreases tenfold.

The water absorption of the adhesive tape is equal to 0.2%, which is an excellent result when compared with roofing felt, in which the indicator fluctuates within 2%. The working temperature is between -60 and + 140 ° C. This tape is suitable for use in any area.

Izospan SL belongs to the group of double-sided adhesive tapes, therefore it is suitable only for overlapping vapor barrier installation. To do this, the adhesive tape is glued to the edge of the first roll, then the release paper is removed and the second roll is applied.

TechnoNIKOL

This tape has work surfaces on both sides. The base for the tape is polypropylene, but despite this, the material performs its functions perfectly. The length of one roll is 25 meters, and the width is 3.8 cm. Due to the low cost, about $ 3 per piece, you can save on insulation without losing quality.

The TechnoNIKOL adhesive tape is intended only for gluing vapor barrier rolls. It cannot be used when sealing film adjoins to load-bearing structures... Most often it is used in residential private construction and industrial buildings.

Ondutis ML and BL

The mounting tape is designed for a service life of up to 15 years. Depending on the marking, the area of \u200b\u200bapplication differs, the surfaces to which the adhesive tape can be glued. So, ML is a tape with an adhesive on both sides of the fabric base. The role of the joint compound is synthetic rubber, which is distinguished by its strength and reliability. It is produced in rolls 50 mm wide and 25 meters long. Designed for bonding vapor barriers in roofing cakes and walls.

Ondutis BL also has two adhesive sides, one of which is covered with non-sticky paper. It is used to seal joints of vapor barrier with hard surfaces. They are used to process connections with brick, concrete and wooden walls... In addition, it can be used as an attachment to concrete walls.

A more expensive option for vapor barrier tape, which has an aluminum base and two adhesive surfaces. The tape has several color options and is produced in rolls 10 meters long and 100 mm thick. The cost of this option is $ 11, which is explained by the scope.

Nicoband mounting tape is used to seal external seams. It is able to firmly bond the insulating film to plaster, wood, metal, roofing and concrete. The manufacturer gives a guarantee of a tight connection for 10 years.

Scotch selection criteria

Remember that stationery tape is definitely not suitable for bonding vapor barrier films. It is not designed to firmly bond to rough surfaces, so it falls off after a few hours. Even if it seems that it stuck reliably, keep in mind that the manufacturer did not count on using his adhesive tape in frosty conditions.

When choosing mounting tape, pay attention to the following factors:

• if you plan to use it outdoors, then the tape must withstand ultraviolet radiation and precipitation;
• the level of water absorption should not exceed 0.2%;
• it is important that the working temperature coincides with the climatic zone;
• choose tape for specific jobs, either for sealing the film or for bonding to hard surfaces;
• minimum service life 10 years.

How to glue vapor barrier and how to glue the film

Sealing joints and what is the best way to glue the vapor barrier? Varieties and brands of adhesive tape. Selection criteria and characteristics.

Scotch tape for vapor barrier

Vapor barrier tape is a special construction tape that is used to seal the joints of vapor barrier films. The use of inappropriate adhesive tape leads to its peeling and moisture ingress into the insulation. As a result, the house loses its thermal insulation properties.

In this article, we will consider the main types of scotch tapes for vapor barrier, help you make the right choice and tell you about the nuances of installation.

Types of adhesive tapes for vapor barrier

All construction tapes can be classified according to structure and material. The structure is: one-sided and double-sided tape. The first is used for fastening the canvases "joint to joint", the second - "overlapping".

By the type of material, scotch tapes are of the following type:

Mounting tapes Ondutis ML and BL

Ondutis ML is a double-sided self-adhesive tape on a fabric backing. Synthetic rubber, which is part of Ondutis ML, provides a reliable connection for 15 years. Scotch tape is used to install vapor barrier on ceilings, roofs and walls. Standard width - 50mm. Harmless and non-toxic.

Ondutis ML is used as a universal assembly and sealing tape when installing vapor barrier and under-roofing films on building envelopes. It is used for hermetically gluing joints of vapor barrier films on walls, roofs and ceilings.

Ondutis BL is a double-sided self-adhesive mounting tape on release (non-sticky) paper. The tape provides a reliable vapor-air tight connection for 15 years. One package contains two rolls of 25 m.

Ondutis BL is used for sealing joints to solid surfaces (concrete, brick, wood) and roof passages (chimneys, ventilation ducts, etc.), as well as for fastening films to brick and concrete walls during installation.

How to choose and buy the right vapor barrier tape

The main rule should be remembered - ordinary stationery tape is not suitable for gluing vapor barrier sheets. Due to the roughness of the outside of the film, it will fall off literally the next day. When choosing an adhesive tape, the following properties should be considered:

• resistance to ultraviolet and atmospheric phenomena;
• low level of moisture absorption (0-0.2%);
• operating temperature (ranges from -40 to + 75-80 ⁰С);
• adhesion to a certain group of materials (film, metal, wood, concrete and others)
• service life (15 years or more).

It is not recommended to buy products from unknown manufacturers. Firstly, they can be toxic, and secondly, no one guarantees the quality of adhesion. Butyl rubber types of construction tapes are better suited for vapor barrier.

Installation of adhesive tape for vapor barrier

Stages of installation of adhesive tape:

1. Preliminary preparation of all surfaces (canvases, bases). They must be cleaned, degreased and dried.
2. The bottom layer of vapor barrier is laid on the base. The tape is fixed around the entire perimeter.
3. The film is removed from the top of the tape.

• The second "overlap" is laid on the first canvas and pressed tightly.

For best quality, joints should be sealed at minimum humidity and room temperature.

Scotch tape for vapor barrier: What is it, what types are there, which one to choose and how to make the installation

What is construction tape for vapor barrier. What kind of tape to glue the vapor barrier with one-sided or two-sided. How to make a choice and buy the right tape.

In our article today, we will talk about protecting insulation from steam penetration. To be absolutely precise, we will try to figure out the best way to glue the vapor barrier. What means are there for this, and how are they used in this or that case. We asked an expert in insulation issues to help understand all the nuances and subtleties of the issue.

Editor:

Good afternoon, Specialist! A lot has been said about the thermal insulation of living quarters, attics, balconies, attics. We have clarified situations regarding the need to use a vapor barrier in certain cases. But how to properly connect the vapor barrier sheets, how to seal the joints - these questions were left "overboard". Let's help readers figure it out.

Specialist:

Bonding sheets of vapor barrier material is a fairly simple process. But, at the same time and very responsible. There are several types of adhesive tapes, and first of all, let's define the basic requirements that they all must meet:

• High adhesion of the adhesive layer - the canvas must be reliably, "tightly" glued both to the insulated structures and to the surface of the vapor barrier sheets;
• Should not deteriorate or change its properties under the influence of ultraviolet radiation;
• Should not absorb moisture;
• The operating temperature range should be up to 90 degrees Celsius;
• The service life of the adhesive tape cannot be less than the service life of the steam insulation itself - which is an average of 15 years.

Editor:

Our readers asked the question: "Is it possible to use ordinary stationery tape to connect the joints?"

Specialist:

My answer is definitely no.For all its stickiness and moisture resistance, it literally lags behind after a few days. Here are the connecting materials that will cope with the functions assigned to them:

• Aluminum tape. This is a 10 cm wide roll of special aluminum foil with an adhesive layer. Perhaps this is the most versatile connector, but it also copes with gluing far from all types of vapor barrier.
• Reinforced tape. In fact, it is the same aluminum connector, but with increased strength.
• Polypropylene adhesive tape is perhaps the most affordable connector. But it has the lowest strength, which causes its infrequent use.
• Reinforced adhesive universal adhesive tape. A five-centimeter wide skein of scotch tape is reinforced with a fabric layer, and at the base of the adhesive composition is rubber resin.
• Butyl rubber connecting tape. High adhesion and reliable adhesion are the main advantages of this connector.

Editor:

As far as can be judged by the characteristics of adhesive tapes, each of them is good in its own way and the area of \u200b\u200bits application is determined by the characteristics of the premises, structures and types of surfaces that we glue?

Quite right. In addition, I want to draw your attention to the fact that even the strongest adhesive composition will not cope with its task if the surfaces to be insulated are not properly prepared.

I strongly advise you not to rely on the Russian "maybe", but to approach the issue of choosing an adhesive tape for vapor barrier with all responsibility, because the reliability and durability of the thermal insulation of the entire building or your room separately depends on such a seemingly trifle.The joint opened due to the peeled off tape will become a channel for moisture penetration into the insulation fiber. Deterioration of thermal insulation, dampness, fungus ... Saving on little things, we risk losing the battle for heat conservation.

Execution of construction, assembly or renovation works, is associated with the use of sealing and fixing compounds. However, to perform such tasks, there are not only liquid or powder products, among the variety of products there is also a specialized adhesive tape, most often used for vapor barrier of buildings and structures.

Features and purpose

Any construction of premises, especially residential buildings, is not complete without the use of vapor barrier raw materials. The presence of such materials, most often a vapor barrier film, provides good protection for important components of the entire structure from moisture penetration, which has a destructive effect on most of the surfaces.

In addition, the presence of a membrane will eliminate the risk of condensation entering the room, which will protect it from the formation of fungus and mold on the bases.

Errors made during the installation of materials for vapor barrier will lead to the accumulation of excess moisture in the apartment or house, as a result of which the raw materials for insulation will lose their qualities, over time, ceilings on the ceiling and walls will collapse. That is why competent installation, as well as gluing of vapor barrier material, is an important task for the construction and durability of a residential structure.

When arranging a building's roofing cake, vapor barrier tape is a fundamental element providing the necessary waterproofing barrier, along with the main roofing materials. Usually, bitumen tape is used for waterproofing the roof, which looks very similar to construction tape.

Window structures, the installation of which is mandatory during the construction of buildings of any purpose, requires reliable protection of the joints of the frame with the wall. Therefore, in addition to traditional polyurethane foam, you will need to glue the corners and joints of windows with a reliable sealing material that is available on the market building materials construction tape.

The product is a special-purpose tape designed for gluing different elements together. A feature of the adhesive tape is its ability to provide reliable insulation of joints and seams from moisture and steam penetration. It should be noted that the use of conventional stationery tape for the above works is not justified, since the product after a while will begin to gradually peel off, passing moisture through the formed gaps, which destroys the layers of thermal insulation material.

Characteristic

Vapor barrier tape is a construction tape different sizes and a structure, the scope of which is to ensure good sealing of the joints of vapor barrier products. In fact, it is an adhesive tape for steam and waterproofing, which is a new product for modern market goods for construction and repair. But due to their properties and characteristics, such adhesive products have already become popular and in demand among consumers.

This demand for a product is explained by the low quality of insulation of joints and seams, which is carried out in buildings that were built not so long ago. For new settlers, whose dwelling is adjacent to the attic, this issue is especially relevant, since poorly executed vapor barrier, over time, negatively affects the microclimate in the apartment. In addition, the tightness provided by the vapor barrier tape makes it possible to prevent the rapid release of warm air from the apartment, and the penetration of cold air masses from the street.

Based on the characteristics of the connecting tape, it can be used to fix and seal film joints located in the horizontal and vertical directions. The adhesive tape is glued to the very edge of the base, making sure to place the adhesive paper on top. After that, another overlap film is laid with fixing with a tape, pressing all the joints.

To ensure high-quality sealing at the junctions of materials with constituent parts, installation of the tape must be carried out on a solid base, for example, metal, concrete or brick.

Double-sided mounting products can be attached to the material itself. To perform such a task, it is necessary to remove the adhesive paper from the surface, and then, having positioned the entire roll of tape in a given direction, roll it along the base, pressing slightly along the direction of travel.

In this case, a certain distance recedes from the edge of the panel.

The tape should be used only to seal the joints between materials, their fixation to the working surface during the laying process is performed using fasteners, most often nails are purchased for such work, or fastening is performed using a construction stapler.

Vapor barrier tape has the following characteristics:

• uV resistance;
• low moisture absorption rate of 0.2%;
• resistance to weathering;
• the product does not lose its properties in the temperature range from +75 C to -40 C;
• high level of adhesion to concrete surfaces, metal, foil, wood substrates;
• the operational period is about 15 years.

Kinds

Without exception, all vapor barrier tapes have an adhesive base, this feature eliminates the need to apply the adhesive on your own, thereby reducing the risk of low-quality fastening of products, which will entail moisture ingress on the thermal insulation.

Product classification is based on the raw materials used to make the tape, as well as the structure of the product.

In terms of structure, construction tape for vapor barrier is double-sided and one-sided. The latter type of product is used for fixing materials butt. Products of the first type are used for overlapping canvases.

Taking into account the raw materials from which the belts are produced, the products are divided into the following types:

• Aluminum scotch- it is a kind of composition, which contains a tape of aluminum, the thickness of which can vary from 20 to 40 microns, as well as an adhesive and a protective base. The products have positive reviews, however, the disadvantage of such a tape is the fact that it cannot be used for all types of vapor barrier films. Aluminum tape is usually 50 to 100 mm wide.
• Reinforced aluminum products- such products are characterized by greater strength, in contrast to the previous type of adhesive tape. This characteristic is due to the presence of a reinforcing reinforcing layer in the product composition. The adhesive tape is 50–100 mm wide.
• Polypropylene tape- products are of low cost and are sold in any construction department. In this case, the statement about the relatively low quality of cheaper analogs is completely justified, since experts note unreliable fixation when working with such material and vapor barrier films. Usually the width of polypropylene tape does not exceed 50 mm, with a thickness of up to 100 microns.

• TPL adhesive tape - is a textile-based product with a rubber-based adhesive and a polyethylene surface on the upper side. Self-adhesive rubber products are rarely used for installation of vapor barrier. It has an impressive thickness - about 200 microns, with a width of 50 mm.
• Butyl rubber tape- the product stands out for its advantage - butyl tape has a high level of adhesion to vapor barrier materials. The disadvantages of products include large specific gravity tape, which exceeds the same value for aluminum tape five times. The width of the product varies between 15-50 mm.

It should be noted that rubber tapes are used most often for windows, balconies and door structures... In rooms with high humidity, metal-based products are used.

In addition, belts are classified based on the climatic purpose:

• for operation at low temperatures, "winter" products are produced that do not lose their properties from frost;
• "summer" type films are recommended for use at medium positive temperatures.

Dimensions

The overall grid of products on the market is as follows:

• products with a length of 25000 mm, having a width of 15 mm, 30 mm, 50 mm, 60 mm, 75 mm;
• options with a length of 30,000 mm with a belt width of 15 mm and 60 mm;
• products with a length of 23,000 mm and a width of 152 mm.

How to choose?

To make the right choice of adhesive tape for vapor barrier, you need to pay attention to the following characteristics of the presented product:

• The tape for sealing can be used in specific places of residential buildings and structures, therefore, the resistance of the product to ultraviolet radiation is a fundamental criterion when purchasing a particular product.
• The scotch tape should not absorb water, otherwise there is a risk of spoiling the thermal insulation and vapor barrier material.
• High quality products must be resistant to heat up to 90 C.
• Tape adhesion to various surfaces. There are some types of products that are not capable of adhesion to metal substrates.
• Typically, the average life of a vapor barrier tape is about 15 years. However, it may differ for each manufacturer.

When buying a tape, you should clarify this information.

The technology of working with scotch tape requires compliance with certain rules.

1. Any manipulation with the tape can only be performed on cleaned and completely dry surfaces.
2. Next, a vapor barrier sealing sheet is laid out, which is glued with tape along the entire width and length.
3. After that, the top layer of adhesive tape is removed.
4. The final step is to lay a second layer of insulation, which is glued to the product underneath.

Vapor barrier tape is a special construction tape that is used to seal the seams of vapor barrier films. The use of inappropriate adhesive tape leads to its peeling and moisture ingress into the insulation. As a result, the house loses its thermal insulation properties.

In this article, we will consider the main types of scotch tapes for vapor barrier, help you make the right choice and tell you about the nuances of installation.

Types of adhesive tapes for vapor barrier

All construction tapes can be classified according to structure and material. The structure is: one-sided and double-sided tape. The first is used for fastening the canvases "joint to joint", the second - "overlapping".

By the type of material, scotch tapes are of the following type:

Aluminum tape	a kind of sandwich made of aluminum tape (thickness 20-40 microns), protective paper and an adhesive layer. It copes well with its main task, but is not suitable for all types of films. Typical belt width - 50-100 mm
Reinforced aluminum tape	differs from ordinary aluminum tape in greater strength due to the presence of a reinforcing layer. Width 50-100 mm
Polypropylene tape	inexpensive. Sold in any store. The disadvantages of this tape include its low reliability when gluing vapor barrier films. The width is about 50 mm, and the thickness is 20-100 microns.
TPL tape	The fabric backing is combined with a rubber backing adhesive and a polyethylene coating on the outside. They are rarely used for sealing joints. 200 micron thick, 50 mm wide.
Butyl rubber tape	possesses good adhesion and adheres perfectly to the vapor barrier. Width 15-50 mm

Mounting tapes Ondutis ML and BL

Ondutis ML is a double-sided self-adhesive tape on a fabric backing. Synthetic rubber, which is part of Ondutis ML, provides a reliable connection for 15 years. Scotch tape is used to install vapor barrier on ceilings, roofs and walls. Standard width is 50mm. Harmless and non-toxic.

Ondutis ML is used as a universal assembly and sealing tape when installing vapor barrier and under-roofing films on building envelopes. It is used for hermetically gluing joints of vapor barrier films on walls, roofs and ceilings.

Ondutis BL is a double-sided self-adhesive mounting tape on release (non-sticky) paper. The tape provides a reliable vapor-air tight connection for 15 years. One package contains two rolls of 25 m.

Ondutis BL is used for sealing joints to solid surfaces (concrete, brick, wood) and roof passages (chimneys, ventilation ducts, etc.), as well as for fastening films to brick and concrete walls during installation.

How to choose and buy the right vapor barrier tape

The main rule should be remembered - ordinary stationery tape is not suitable for gluing vapor barrier sheets. Due to the roughness of the outside of the film, it will fall off literally the next day. When choosing an adhesive tape, the following properties should be considered:

• resistance to ultraviolet and atmospheric phenomena;
• low level of moisture absorption (0-0.2%);
• operating temperature (ranges from -40 to + 75-80 ⁰С);
• adhesion to a certain group of materials (film, metal, wood, concrete and others)
• service life (15 years or more).

It is not recommended to buy products from unknown manufacturers. Firstly, they can be toxic, and secondly, no one guarantees the quality of adhesion. Butyl rubber types of construction tapes are better suited for vapor barrier.