The problem of getting wet thermal insulation materials is relevant for any specialist in the construction field. This is due to the fact that under the influence of moisture it not only loses its functionality, but will also require replacement after repeated wetness. It will help to cope with this problem anti-condensation film. It can become a reliable barrier to moisture in the under-roof space and can be used both during the construction process and during repair work.
Features of the material
Anti-condensation waterproofing film made from a material such as polypropylene. Non-woven textiles are applied to one side of it, the pile of which effectively retains water. The mass of retained moisture can be several times greater than the mass of the film itself. At the same time, it itself will effectively prevent rain and snow from blowing in from the street, and will also increase the functionality of any roof because:
- not afraid of influence ultraviolet rays;
- prevents the transmission of heat from inside to outside;
- has decent strength characteristics;
- will serve for a long time;
- You will be pleased with the ease of installation.
Thus, thanks to the use waterproofing under-roof anti-condensation film, any roof will become even more functional and durable!
When are they used?
Anti-condensation waterproofing films are used when a conventional diffuse membrane cannot cope with the functions assigned to it. These functions are to provide layer protection thermal insulation material from the destructive effects of condensation and ensure effective removal of moisture. Thus, anti-condensation film for metal tiles(and others Decoration Materials) is universal material, which can be used in a number of cases. For example, for arranging an uninsulated under-roof space or for waterproofing a roof located above a room with high level humidity. Another advantage of using this material is its ability to remove moisture from those rooms in which the so-called “wet” technology was used for finishing. Their use will also be advisable during the construction of the roof before finishing work. In this case, they will provide protection to the thermal insulation layer from the destructive effects of ultraviolet rays. This became possible due to the fact that the film itself does not collapse under their influence. It is worth noting that despite the additional costs of purchasing and installing this material, savings of almost 50% can be achieved by extending the service life of the roof.
In our company you can buy films Yutafol D, YUTAKON, membrane YUTAVEK at very affordable prices. Our managers will answer all your questions about the use of this or that membrane, and will also quickly process your order.
Yutafol D YUTAVEK YUTAKON
Today, the products of the Czech company Juta are in particular demand among consumers as wind and water protection. Our company offers a wide range of various protective films and membranes produced by Juta, the main purpose of which is to create comprehensive protection insulation, roofing and building structures from moisture and condensation, taking into account the difficult conditions of the Russian climate.
Attention! When installing protective films, be sure to leave a ventilated gap (about 2-4 cm) - this is necessary so that condensed moisture quickly evaporates from the surface of the membranes and is carried away with the air flow.
Wind-hydro-protective films Yutafol D
Wind-hydro-protective films UTAFOL D are presented in several types - Standard, Special and Silver.
The “Special” index is assigned to low-flammable types of film UTAFOL D: such films are characterized by reduced flammability due to the use of a self-extinguishing component. This type of material is called “combustion suppressant”: in the event of a fire, the film does not contribute to the expansion of the fire and does not emit flammable substances that could cause the fire to quickly spread.
Yutafol D films have three layers: the main (inner) layer is reinforcement mesh, consisting of polyethylene strips, there are also two outer layers made of high-quality polyethylene film. The internal reinforcing mesh gives the material increased strength, lamination on both sides provides the necessary waterproofing properties, and micro-perforation makes the protective film vapor-permeable, does not allow moisture to enter the room and ensures the removal of condensation from the insulation to the outside.
Utafol D films are used:
- as a vapor-permeable under-roof film to ensure effective protection under-roof spaces from moisture, dust and soot resulting from rain or snow;
- to protect thermal insulation in attic spaces from external moisture and simultaneous weathering of unwanted water vapor;
- as a device for waterproofing wall structures - in case of installation protective film between the siding and the main load-bearing wall.
There should be a colored stripe on the surface of Yutafol D films approximately 10-12 cm from the edge - its presence suggests a vapor-permeable version of this film. In addition, the color strip also determines the recommended width of the horizontal overlap surface in relation to the subsequent film sheet.
Film Yutafol D can be used for all types of roofing (Katepal, Ondulin, etc.) and siding, in all inclined ventilated roofing structures.
Under-roofing anti-condensation film YUTAKON
Four-layer film UTACON is an ultraviolet-resistant polypropylene fabric, which is laminated on both sides with polypropylene film and has a layer of moisture-absorbing non-woven material. Top and bottom lamination is necessary to ensure waterproofing properties and vapor tightness, polypropylene fabric is used to create high strength, and quick drying non-woven material- to absorb water vapor generated in the internal space of a construction site.
YUTAKON under-roof anti-condensation film is intended for:
- for guard internal structure the object from the penetration of moisture from the outside, as well as from the appearance of soot and dust in ventilated (ventilated) systems of inclined roofs;
- to prevent condensing water vapor from dripping onto the insulation used;
- to protect finished roofing structures in progress preparatory work before installation of the roofing;
- to protect thermal insulation from harmful effects atmospheric phenomena.
UTAKON film Available in widths of 1.3 and 1.5 m, length 50 m and density 130, 140 g/m2. This material, due to the quality of the raw materials included in its composition, has a relatively long service life - no less than that of the roofing used. In addition, the film is resistant to pests, does not rot or mold, and has no negative influence to your health.
The advantage of YUTAKON film is not only its strength and durability, but also its good ultraviolet resistance (about 12 months) - this means that the roof, after providing protection with the help of YUTAKON film, can be uncovered (without any additional protection) for a long time - unlike coating with other under-roofing protective films.
The use of UTAKON film is possible in all ventilated non-insulated and insulated pitched roofs, where the roofing material is metal tiles or galvanized sheets, or other roofing materials made on a metal basis (such as Rannila, Gasell Profile, Plegel, etc.).
Superdiffusion membrane YUTAVEK
UTAVEK membrane is a polypropylene material consisting of three layers: two outer layers (black and white) provide strength, and inner layer responsible for waterproofing superdiffusion ability.
Properties of the UTAVEK membrane:
- high vapor permeability(µ = 64, > 1200 g/m2 in 24 hours);
- high water resistance (it has been experimentally proven that the membrane holds a column of water whose height is more than 1,500 mm);
- good strength (more than 150 N/5 cm);
- durability - no less than the durability of roofing coverings;
- resistance to mold, rot and pests;
- absolutely harmless to humans.
YUTAVEK used to create vapor-permeable under-roof waterproofing in order to ensure protection of under-roof structures, thermal insulation systems, attic space from humidity that may arise due to natural precipitation, adverse effects wind, as well as from soot and dust. The high vapor permeability of the membrane helps to accelerate the weathering process of condensate that accumulates in the internal space of the construction site. This material also often used when necessary external insulation vertical walls of the object.
The YUTAVEK membrane can be used in the construction process of objects with all types of thermal insulation and for any roofing and wall structures. This membrane is mounted directly on the thermal insulation or flooring itself, touching its bottom side (white), or some other base that covers load-bearing structure roofs. The YUTAVEK membrane, unlike other superdiffusion membranes, can be laid directly on an impregnated (treated special composition to prevent rotting) surface wooden structures roofs
Rolls of superdiffusion membrane UTAVEK have standard sizes 1.5 x 50 m with a density of 150 g/m2. When storing the UTAVEK membrane, it is necessary to exclude access to ultraviolet rays.
YUTAKON under-roof waterproofing anti-condensation film is used in ventilated inclined roofing systems for guard internal space home from the penetration of external moisture (rain and snow), soot, and dust. At the same time, YUTAKON prevents water vapor condensate from draining onto the thermal insulation thanks to the special moisture-absorbing non-woven material (viscose) included in its structure.
Specification of waterproofing anti-condensation film YUTAKON.
YUTAKON membrane is a four-layer polypropylene material, stabilized to ultraviolet radiation, laminated on both sides. On one side of the film there is a moisture-absorbing non-woven material:
- the upper and lower layers of the laminate provide the film with waterproofing properties + vapor permeability of the material;
- polypropylene fabric gives high strength;
- moisture-absorbing non-woven material absorbs water vapor, thereby preventing condensation of droplets of moisture from water vapor rising from the interior of the house. Thanks to the ventilation gap under the film, this non-woven material dries quickly in the passing air flow.
Technical characteristics of anti-condensation film YUTAKON N 130 VS UV:
- roll size - 1.3 (1.5) x 50 m;
- material density - 130 g/m²;
- flammability according to DIN 4102 - B3;
- vapor permeability - 0.00035 kg/m 2 *24 h;
- strength, longitudinal/lateral - 8.0 (84)/6.0 (63) MPa (kgf/cm 2);
- extension length/transverse — 20/20%;
- stability to UV irradiation - 12 months.
The membrane has high durability, comparable to the durability of roofing materials. YUTAKON is not susceptible to rotting, pests and mold.
Installation with anti-condensation waterproofing film YUTAKON.
- YUTAKON film is attached directly to the plane of the rafters/joists/others building elements roofs so that the distance between them does not exceed 1.2 m;
- It is not allowed to lay the film directly on (other floorings) and thermal insulation;
- the minimum gap under the UTAKON membrane is 5 cm;
- with rafter length< 10 м размер проветривающего зазора должен составлять 1/250 площади стороны кровли, min – 400 см²/1 пог. м от кровельного желоба;
- for each subsequent meter of rafter length, ventilation gaps are increased by 10% (by 40 cm²/1 linear meter of roof gutter);
- when laying material on the roof, the moisture-absorbing non-woven layer must face the interior of the house;
- installation begins horizontally from the roof edge and continues towards the ridge;
- the film is strengthened on the supporting structure of the roof with counter-battens;
- along the edge of the film there is a black stripe, which reflects the recommended width of the horizontal overlap with the subsequent sheet of material;
- dependence of the overlap of UTAKON sheets on the angle of inclination of the roof:
|
Roof slope, in degrees |
Vertical overlap, cm |
Horizontal |
The gap under the film (rafters maximum length 10 m) |
|
<= 14 |
6 cm (600 cm²/1 linear .m) |
||
|
5 cm (500 cm²/1 linear .m) |
|||
|
>= 31 |
4 cm (400 cm²/1 linear .m) |
- when the roof slope is less than 22°C, the overlap of the film sheets is connected with SP 1 tapes;
- when installing the UTAKON membrane on formwork/other flooring, impregnated counter-battens with a cross-section of 4 x 5 cm are laid between the film and the flooring. The distance between the counter-battens is no more than 1.2 m;
- the adhesion of the material in the lower part of the roof and in the ridge area must ensure mandatory air flow. In the ridge area, the gap for ventilation should be at least 10 cm;
- the advantage of YUTAKON is its high strength and significant ultraviolet resistance (12 months), which significantly exceeds the performance of other films;
- YUTAKON can be used to protect roofing structures during preparatory work until the installation of the roof covering, including for temporary protection of thermal insulation from the effects of precipitation;
- YUTAKON film is vapor-tight and therefore prevents the flow of water vapor from the interior of the house to the roofing material. As a result, the possibility of water vapor settling on the laid coating is reduced, incl. penetration of water vapor into metal tile paints;
- UTAKON film is not allowed to be exposed to UV radiation through an attic window or;
- the membrane can be used for roofing with a slope of 12°;
- at a lower slope, consultation with the manufacturer is necessary;
- the remaining installation rules correspond to the installation rules set out in the article.
Using UTAKON film.
The YUTAKON waterproofing vapor-tight anti-condensation membrane can be used in all systems of ventilated sloping roofs, especially for profiled coverings (metal tiles) such as Rannila, Plegel, Gasell Profile, etc.
The fact that insulation moistened with condensate loses almost half its ability to retain heat is known to any specialist in the construction industry. This problem is especially relevant for the under-roof space. In order to eliminate this negative factor, it is necessary anti-condensation film. She provides necessary protection insulation against moisture penetration. And today this task is one of the most important when constructing new houses or renovating old ones. That is why anti-condensation waterproofing films are one of the most popular products in the global construction market.
What is anti-condensation film?
Under-roof anti-condensation waterproofing film is a product made of polypropylene, on one side of which non-woven textiles are applied. Its presence is quite justified, since textile pile has the property of retaining moisture, and its weight can be several times greater than the weight of the film itself.
Polypropylene from which they are made anti-condensation films for metal tiles, is an effective barrier to moisture. It does not allow air to pass through, thereby preventing snow and rain from blowing in from the outside. In addition, it has other characteristics that make any roof more functional, namely:
- insensitive to ultraviolet radiation;
- does not allow heat to pass out;
- has excellent strength characteristics;
- easy to install.
Features of application
Anti-condensation films - best option for those cases in which diffuse membranes are not able to provide the necessary protection of insulation from negative impact condensation and cannot provide the desired moisture removal. They are ideal for the following cases:
- arrangement and repair of the attic;
- installation of roofs finished with euro slate, metal tiles, corrugated sheets;
- arrangement of uninsulated under-roof space;
- installation of roofs over rooms with high humidity levels.
In addition, do not forget that this type material is able to remove moisture well from the premises in which Finishing work using “wet” technology. Due to their immunity to ultraviolet radiation, anti-condensation films can serve as temporary protection for the thermal insulation layer at the stage of roof construction when the finishing has not yet been installed.
In general, the presence of an anti-condensation film can extend the service life of a metal tile roof by more than 50%.
Anti-condensation film, Full waterproofing with under-roofing anti-condensation film under metal tiles
Under-roof anti-condensation waterproofing film is a product made of polypropylene, on one side of which non-woven textiles are applied.
What are anti-condensation membranes
Anti-condensation membranes (films) are coatings made of waterproof spraying and polypropylene fabric (used as an adsorbent layer) that do not allow steam to pass through. This combination absorbs steam and removes it beyond the roofing material. The film is capable of trapping condensation that forms on inside roof and protects the supporting structure. The pile after installing the film can hold condensate weighing 3-6 times its own.
The top layer is responsible for the water-repellent properties of the material, and the absorbent capabilities of the adsorbent layer prevent the passage of water vapor. This ensures insulation of the insulation and prevents condensation from entering the parts from the surface of the membrane rafter system.
Where are anti-condensation films used?
The main area of application of membranes is pitched metal roofs, namely: metal tiles, seam roofing coverings. They are in greatest need reliable protection from corrosion. Due to the low quality of the material, violation of technology, and exposure to temperature, microcracks may appear as a result of expansion or contraction of the metal during daily temperature fluctuations. The presence of condensation on the inside of the material leads to the formation of rust. Using an anti-condensation membrane is a way to eliminate the problems described above, since the adsorbent layer effectively absorbs steam and condensate.
Anti-condensation films with a hydrophobic coating are used where diffusion membranes cannot cope with roof protection from condensation and drainage excess moisture. Anti-condensation products are perfect for insulating insulation, repairing attics, installing roofs covered with metal tiles, galvanized sheets, ondulin or corrugated sheets. In a roof that does not have insulation, anti-condensation films prevent the entry of dust and soot.
The films function perfectly in roofs that are located above objects with increased circulation of moist air, and their resistance to ultraviolet radiation allows them to be installed as temporary protection for rafters and insulation in the absence of finishing materials. Metal tiles, which have an anti-condensation film underneath, last 50-70% longer than a roof not protected by a membrane.
Advantages of anti-condensation film
- high mechanical strength;
- unlike roofing felt and glassine, it does not emit harmful substances when heated and has no odor;
- films are environmentally friendly and do not interact with acids and alkalis;
- retains its properties throughout the entire service life, does not break or be destroyed under the influence of the environment;
- thanks to UV stabilizers, the membranes can be used in the open sun without consequences;
- Due to their light weight, the films do not load the rafter system, are easy and quick to install, and have reasonable prices.
Resistance to ultraviolet radiation, elimination of heat loss, resistance to stretching during installation are the main advantages of anti-condensation films.
Features of membrane installation
Anti-condensation films are installed between the insulation and the finishing or roofing material. The pile side of the membrane perfectly absorbs moisture and prevents it from reaching the inner surface of the roof. During installation, it is necessary to provide powerful ventilation of the under-roof space for unimpeded escape of moisture. For this purpose, a ventilation gap is created in the rafter system.
Membranes are installed only in dry weather after installing the rafter system and laying insulation. The film is laid out evenly, without folds, with the absorbent surface down on the rafters, and the bottom should not come into contact with heat-insulating material. It is laid out only overlapping and in horizontal stripes from the eaves to the ridge of the roof.
Attaches with construction stapler or galvanized nails with a large head. The overlap of the strips vertically should be 20 cm, and horizontally - at least 15 cm. The membrane joints are laid on the rafters and secured together with mounting tape. The distance between the anti-condensation film and the insulation should be 40-60 mm; moisture will flow along the lower edge of the membrane into the gutter for water drainage.
After installation, the covering is secured using 3x5 cm slats and nailed with galvanized nails on top of the rafters. A sheathing is made on top of the slats. After installation is completed, moisture should not get on the insulation. Places of contact of the anti-condensation membrane with stove and fireplace chimneys, antenna stands and ventilation ducts should be further insulated.
Ondutis is a popular manufacturer of anti-condensation films
Ondutis anti-condensation membranes are very popular, namely: R70, which protects the insulation from steam and condensation, and R70 Smart - which comes complete with mounting tapes for gluing.
Conclusion
When choosing a film, you need to pay attention to its vapor permeability: it should be close to zero (0.25-0.35 g/m2 h*Pa) in order for the membrane to maximally protect the roof from condensation and subsequent corrosion.
Anti-condensation membranes (films): What is it?
We will understand what anti-condensation membranes or films are in this article from construction experts.
Under-roof waterproofing film
Roofing films provide excellent vapor and waterproofing!
Anti-condensation roofing films: main characteristics
Each of us, having a house or cottage, is interested in ensuring that condensation does not form under the roof of the home and that the structure can last as long as possible. After all, what causes condensation? It appears due to temperature changes on the lower plane of metal sheets.
In addition to this, the vapors rising from interior rooms buildings, in the cool air the spaces under the roof turn into water. And this is already fraught with the insulation getting wet, which means it will lose its thermal properties. This is also a direct path to freezing of the roof and the appearance of ice on it, rotting of the sheathing and rafters, an increase in mold and damage interior walls and ceilings of the house.
To avoid such unforeseen situations, it is better to take care in advance of both the insulation of the required thickness and its protection from the metal tiles - a correctly selected under-roofing film will help 100% avoid problems with the roof!
Vapor and waterproofing - what types of films can provide them? It should be noted that hydro- and vapor barrier film can be: single-layer and consist of several layers, with or without adhesive tape... That is, roofing films can always be chosen to suit every taste, at any cost and taking into account all the nuances proper organization space under the roof (i.e., high-quality film must be water- and airtight, vapor-permeable, durable, and so on).
So, a waterproofing film of any type is designed to prevent moisture from leaking in from the outside and at the same time should help remove a certain amount of insulating vapor to the outside (due to microperforation).
Installation of films in mandatory done with a sag of 20 mm (above the insulation).
As for vapor barrier films, they are needed to protect the insulation from steam. There must be a tight connection!
Under-roofing anti-condensation films: the most common of them
Tyvek® Soft membrane
A single-layer material with which vapor barrier can be easily achieved. Is excellent protection pitched roof with a ventilated gap (even attic) from all winds and precipitation. Used for work and residential premises.
Single-layer waterproofing film with increased strength and anti-reflective coating. Perfectly protects stingrays even mansard roofs+ walls of houses from winds and precipitation.
Its installation is carried out directly on the thermal insulation material and rafters without a ventilation gap.
Tyvek® Supro membrane
An excellent material when waterproofing and the highest strength with vapor permeability are required. In addition, the film does an excellent job of providing wind protection for slopes of any variation (warm, cold or combined roofs). It is successfully used in floor and wall structures.
A film with pronounced waterproofing properties. It has adhesive tape of the highest strength and is equipped with a vapor barrier.
Most the best option to protect the roof space and walls of the building from all weather conditions. It is used in all types of roofs, both with and without load-bearing structures.
Tyvek® Housewrap
This under-roof film can be laid directly on the thermal insulation. Is durable, lightweight, flexible, windproof, single layer material with waterproofing properties. It is good because it increases the tightness of the structure and can be attached to a frame stand, plywood sheathing, or block masonry.
Ideal for wood and steel frames, curtain facades and concrete structures. Very durable (4 months without covering is not the limit).
DuPont™ Tyvek® Solid
The material is endowed with the highest characteristics, in particular it has excellent vapor barrier. Acts as a protector of various roofs and facades from wind gusts and other weather conditions. It has an anti-reflective coating and can be laid directly on thermal insulation and rafters. Suitable for both commercial and individual homes.
Tyvek® Solid Silver
It perfectly saves energy at home, provides warmth in winter, and cool comfort in summer. Allows you to save on heating and air conditioning up to 15-20%.
DuPont™ Tyvek® Supro Tape membrane
Durable hydro/vapor barrier film with adhesive tape highest quality. Excellently protects roof slopes of various load-bearing or non-load-bearing structures from winds and various precipitation.
Indispensable for the construction of roofs of both non-residential and residential buildings.
DuPont™ AirGuard® Reflective
The most profitable proposition for those consumers who want to achieve thermal resistance the entire room, due to the reflection of thermal radiation inside the home. The vapor barrier layer makes it possible to enhance the effect of thermal insulation and makes the building more energy efficient.
Tyvek AirGuard® Reflective
Moisture resistance, tightness, fur. strength, low condensation formation, low heat loss during convection - this is all the vapor barrier film of the specified model. In addition, it does not respond to fire and meets all international standards as rubber-based materials and plastics. Able to reflect about 95% of warm radiation.
Tyvek AirGuard® SD5
The building membrane of our time is an excellent choice when you need to reduce heat losses, minimize the formation of condensation inside the thermal insulation material. Lightweight, easy to install, with mechanical strength, control of steam transmission, and full compliance with the European standard certificate (EN 13984), the film is very popular in all corners of the Russian Federation.
Because its main advantages: the absence of a “greenhouse” effect, a comfortable humidity-temperature balance in the house, environmental friendliness and safety for the outside world.
Diffusion type waterproofing filmDELTA-VENT N and DELTA-VENT N PLUS
3-layer film is excellent for completely insulated roofs and is a fabric made of non-woven material on a PVC base (the layers are glued together with ultrasound). Features self-adhesive edges for quick, wind- and waterproof installation (no need for tape or glue).
This under-roofing film has a gray surface with a matte effect, low weight (130 g/m2), and the highest resistance to fur. damage and data stability.
2-layer premium film with an anti-condensation layer that retains and then removes condensation due to diffusion. Is the guarantor of such important feature as waterproofing. Resistant to tearing and steam penetration (this is facilitated by the polyurethane coating).
When laying it is convenient because it has on its bottom side non-woven material and cellular surface - during cutting, smooth edges come out and the fabric is wasted minimally. Widely used in roofs without decking or with formwork.
4-layer fabric with a reflective layer of aluminum, belongs to the premium class. Used on flat and pitched roofs.
During its operation, you will achieve complete vapor barrier; also, such a film helps save energy.
The film is endowed with record strength properties, the highest ductility, improved thermal protection and 99% electromagnetic shielding. radiation.
Tyvek® roofing films and acrylic tapes
Tyvek® acrylic tapes come in both single-sided and double-sided. 1-sided tapes are good for sealing overlaps, are excellent for a variety of membranes, and as a sealant cope well with joints at the junction of doors, windows, and pipes.
Double-sided tapes have more capabilities: they have excellent adhesion in moisture conditions, are suitable for all membranes, which can be glued both to each other and to smooth surfaces.
Under-roof waterproofing anti-condensation film - review of materials, MY ROOF
Under-roof waterproofing film for MY ROOF | Roofing films provide excellent vapor and waterproofing! Roofing films…