Steam insulation materials today are indispensable forcarrying out construction work. One of the most popular and common are membrane, because they are able to protect the structure from moisture and wind, creating a comfortable microclimate inside the building. There is a huge variety of construction solutions on the market today, however, Tayvek is a vapor barrier that is considered one of the most effective.
Description
If you want to choose a quality vapor barrier,It is worth closer acquaintance with products under the brand "Tyvek", which has a non-woven structure. These membranes are composed of low-pressure polyethylene, and are manufactured according to the technology of ultrafast fiber formation. Elements are interconnected by high temperatures.
This technology provides enhanced protectiveproperties, guarantees vapor tightness and high strength. The characteristics allow the use of Tyvek membranes to protect the exterior of houses, vapor barrier for roofs, and for temporary covering when construction is delayed. For optimal effect, the material is recommended to be used in combination with fiber insulation and a waterproofing membrane.
Key Features
"Tyvek" - vapor barrier, which compares favorably with similar materials such as "Yutofola", "Izospana" or "Nicobar." Among the advantages should be highlighted:
- no need to provide ventilation clearance during installation;
- the ability to remove moisture from the insulation;
- extended service life of wood structures;
- support the desired level of vapor barrier while maintaining vapor resistance.
This material for half a century is able to perform its functions without losing qualities.
Specifications
Vapor barrier "Tyvek", whose characteristicswill be presented below, offered for sale in several varieties, each of which has its own characteristics. You will be able to find seven membranes, which are produced by the manufacturer under the following designations:
- Soft
- Supro.
- Solid.
- Solid Silver.
- Housewrap.
- AirGuard SD5.
- AirGuard Reflective.
Самой важной характеристикой в этом случае vapor permeability is. For the first two solutions, this parameter is 0.02 Sd (m). The third and fourth options have vapor permeability, which is 0.03 Sd (m). The fifth, sixth and seventh versions of the membranes have a vapor permeability of less than 0.02; 5-10 and 2000 Sd (m), respectively.
The number of layers may differ, for example, inthe first, third, fourth and fifth variants of the layer is only one; in the second and sixth - two layers. And only the last version of the membrane is characterized by the presence of 4 layers. All of these solutions are windproof, but the operating temperature varies from -40 to +100 in the 1st and 5th versions, while in the last two the range is slightly smaller and ranges from -40 to +80 ° С
The last two membranes are designed for laying.on the wall and roof, while the first membrane can be used exclusively for the roof, but the fifth one - for the walls. Each of the solutions presented by the manufacturer can be operated for more than 50 years.
Mounting recommendations
"Tyvek" - vapor barrier, which shouldfit according to a certain technology. To do this, the roll should be rolled across or along the rafters, carrying out the fastening with brackets, the distance between which should make a limit of 30 to 50 cm. Then the master should proceed to install the counter grille, which will provide the gap between the finish and the insulation layer.
Attachment and junction areas as well as placesthe overlap should be treated with insulating tape on acrylic or butyl base. This approach can also be used when breaking the web. "Tyvek" - vapor barrier, which must be inscribed inside. If you have to carry out work in the attic cold rooms that are provided with winter heating, then vapor barrier will not be required for them. In this case, the membrane should be placed under the overlap of the upper floor. The technology for wrapping external walls will remain the same as in the case of the roof.
More about vapor barrier Airguard SD5
Vapor barrier "Tyvek" Airguard SD5 has an area of 75 m2 in one roll.This building material is used for the vapor barrier of frame houses and insulated pitched roofs. The material keeps the properties, supporting at the same time the necessary level of vapor barrier.
Steam transmission is controlled thatis provided by the high-tech layer applied to the reinforcement base. If such a vapor barrier for the roof "Tyvek" will be used in conjunction with insulation, this will allow to achieve a temperature-humidity balance, which is similar in characteristics to the wooden house.
Among the advantages of this material should behighlight the elimination of the greenhouse effect, maintaining a comfortable temperature inside the building, protecting the building from destruction, durability, strength and environmental safety.
More on the specifications of the Airguard SD5
The above vapor barrier for roof "Tayvek" on100% consists of a polyolefin whose thickness is 430 microns. One roll weighs 14 kg, and its dimensions are 50 x 1.5 m. The breaking load along and across is 200 and 170 N / 5 cm, respectively. Vapor permeability in 24 hours is equivalent to 0 g / m3, while the water resistance is equal to 3 m of water. Art.
Analogs vapor barrier "Tyvek"
"Tyvek" - vapor barrier, analogs of whichpresented on the market today in a wide range. Among others, it is worth mentioning “Izospan”, which is used as a vapor barrier for protection and insulation of building structures for various purposes.
The areas of use of this material are:
- frame walls;
- attic floors;
- insulated sloped roofs;
- interfloor overlappings;
- socle floors.
This material is able to undergo exposure to sunlight for 4 months, it is based on polypropylene, and the resistance to vapor permeability is 7 m.2/ h * Pa / mg.Another analogue is the “Yutafol” vapor barrier film, which is a micro-perforated membrane that prevents the penetration of moisture into the interior of the premises, while it does not prevent the evaporation of condensate. The membrane is sold in rolls and is offered for sale in several varieties: Yutafol, Special and D Standard.
Conclusion
If you carry out the vapor barrier of a wooden house withusing a Tyvek membrane, you can take advantage of many advantages. For example, eliminate the greenhouse effect, create an optimal indoor climate, increase energy efficiency at home and increase the operational characteristics of the structure.
