Today a recognized need is the use of vapor barrier materials. Membranes are considered the most popular and widespread, due to their ability to effectively protect structures for various purposes from the harmful effects of moisture and wind. With their help, you can easily create a comfortable indoor microclimate for a person. Most often, a vapor barrier membrane is a non-woven material, which is made of low-pressure polyethylene. It is the production technology that provides unsurpassed qualities.
The manufacturing process uses ultra-fast formation of fibers that are interconnected under the influence of impressive temperature. Thanks to this technique, the material obtains excellent protective properties, is vapor-tight and durable, which allows the use of canvases for arranging roofs, creating a protective coating during construction delays, as well as forming the outer parts of frame-type houses. In order to achieve the optimal effect, the material is used in combinationwith fibrous thermal insulation and waterproofing membrane. This enhances the effect.
Characteristics of the membrane on the example of the film "Tyvek"
The vapor barrier membrane mentioned above is able to maintain the required level of vapor barrier while maintaining the necessary vapor barrier. It does not imply the presence of a ventilation gap during installation, which is very convenient, because the craftsmen manage to simplify the installation of the material. Among its main abilities, one can single out an increase in the service life of wood structures. The membrane performs its functions for 50 years with proper installation. These figures were obtained during testing, in practice they may be slightly different.
For reference
If the vapor barrier membrane will be used for protruding structures, skylights, attic ventilation or chimneys, it is recommended to use the laid material in tandem with self-adhesive tapes made on a butyl or acrylic basis.
Good Features
If you use the material described in the article for the vapor barrier of frame houses, this will get rid of the greenhouse effect inside attics and attic floors, which were built using classic polyethylene insulation. With the help of membranes, it is possible to increase the energy efficiency of buildings, as well as extend their life.
The material has unique characteristics, among them is the ability to endure the impact of a water column of 1.5 meters. Consumers choose such material also for the reason that it is non-toxic and does not pose a danger to human he alth.
Additional Reasons to Choose Moisture and Steam Resistant Material
Modern hydro-vapor barrier membranes have many positive features. They are available in rolls that are large in width and are easy to install. Due to its impressive size, it takes very little time for installation work. You can not be afraid to bend the material, as the canvases will not tear, because they have high tensile strength. It is easy to cut them, it will be possible to do it even at a height. There is no need to use an additional tool.
No discharge when heated. When compared with other traditional materials, the latter are capable of releasing benzene oil. This indicates that the vapor barrier membrane for the roof will not emit odor during operation. It is chemically and biologically inert, resistant to microorganisms and bacteria. In the production, stabilizers are used that protect the material from exposure to ultraviolet radiation. This can also be said about negative temperatures, which are not able to adversely affect the membrane.
Expert advice
When consumers choose a vapor barrier membrane, the fact that is most significant for them is the fact that the material is exposed to fire. This indicates that laying in the immediate vicinity of sources of flame is strictly prohibited.
Application Features
Vapor barrier of the ceiling with a membrane can be carried out in several stages, the first step is to roll the roll along or across the rafters. They are fastened with brackets in increments of 30 to 50 centimeters. After that, you can proceed with the installation of the counter-lattice, which will ensure that the gap between the insulation layer and the finishing material is observed. Those places where an overlap has formed should be glued with an insulating tape based on acrylic or butyl. The same treatment is used when tearing the canvas.
Installation work is carried out in such a way that the material faces the inscriptions inside. Cold rooms of the upper floors with winter heating do not require vapor barrier, in such buildings it should be equipped under the ceiling of the upper floor.
Features of the vapor barrier film on the example of Yutafol products
Vapor barrier films and membranes are presented today on the building materials market in a wide range. As the first can be identified "Yutafol". This material has three layers, in the center is the base, it is represented by a reinforcing mesh. On the other sideit is filmed. This allows you to achieve strength, but vapor tightness is provided by lamination. By visiting the store, you can choose a specific type of material that has the appropriate marking. For example, the letters "AL" indicate that aluminum is applied to the surface, which performs a reflective function. If you use such a membrane, then the heat will be released into the house.
Classification of vapor barrier films
If you are interested in a vapor barrier film, then you can consider its varieties, each of which is designed to solve certain problems. Using the example of the above-mentioned manufacturer, it is worth highlighting H 96 Silver, which is used for flat and sloping roof structures, and is installed from the inside. This material can be used as a vapor barrier membrane for walls. It effectively protects against wind penetration and condensation. Another variety - Jutafol H 90, can be used to insulate walls and create a vapor barrier when arranging a roof.
Characteristics of the vapor barrier membrane for arranging the floor using the example of "Izospan V"
A vapor barrier membrane for the floor performs the same functions as a material with the appropriate characteristics for the roof. Cloths are laid indoors, on the inside of the insulation. "Izospan B" has a two-layer structure, on the one hand it is smooth, while on the other it is rough to retain condensate evaporation. The formed overlap is necessaryglue with tape during installation. To cover the floor and protect the insulation from moisture, you can use Izospan C, which is used as a waterproofing layer when installing cement screeds.
Conclusion
Before starting construction, you must definitely purchase a vapor barrier membrane. Without its use, condensate rising up from the interior will be absorbed by the insulation. Excess moisture will cause a decrease in the thermal performance of the material, freezing of the roof system and the formation of frost on the coating.
