Vapor barrier materials today are indispensable for construction work. One of the most popular and widespread are membrane, because they are able to protect the structure from moisture and wind, creating a comfortable microclimate inside the building. There are a lot of building solutions on the market today, but Tyvek is a vapor barrier that is considered one of the most effective.
Description
If you want to choose a high-quality vapor barrier, then you should take a closer look at the products under the Tyvek brand, which have a non-woven structure. These membranes contain low-pressure polyethylene and are manufactured using ultra-high-speed fiber formation technology. The elements are connected to each other under the influence of high temperatures.
This technology provides enhanced protective properties, guarantees vapor tightness and high strength. Characteristics allow the use of Tyvek membranes for the protection of externalparts of houses, roof vapor barriers and for temporary covering in case of construction delays. For optimal effect, the material is recommended to be used in combination with fibrous thermal insulation and a waterproofing membrane.
Main Features
Tyvek is a vapor barrier that compares favorably with similar materials like Yutofol, Isospan or Nicobar. Benefits include:
- no need to provide a ventilation gap during installation;
- ability to remove moisture from thermal insulation;
- increased service life of wood structures;
- Maintaining the right level of vapor barrier while maintaining vapor tightness.
This material has been able to perform its functions without loss of quality for half a century.
Specifications
Tyvek vapor barrier, the characteristics of which will be presented below, is offered for sale in several varieties, each of which has its own characteristics. You can find seven membranes, which are produced by the manufacturer under the following designations:
- Soft.
- Supro.
- Solid.
- Solid Silver.
- Housewrap.
- AirGuard SD5.
- AirGuard Reflective.
The most important characteristic in this case is vapor permeability. For the first two solutions, this parameter is 0.02 Sd(m). Third and fourthoptions have a vapor permeability that 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, in the first, third, fourth and fifth versions, there is only one layer; in the second and sixth - two layers. And only the last version of the membrane is distinguished by the presence of 4 layers. All of the above solutions are windproof, but the operating temperature varies from -40 to +100 in the 1st and 5th options, while in the last two the range is somewhat smaller and ranges from -40 to +80 °C.
The last two membranes are designed for wall and roof installations, while the first membrane can be used exclusively for roofing, while the fifth membrane can be used for walls. Each of the solutions presented by the manufacturer can be used for more than 50 years.
Installation recommendations
"Tyvek" - vapor barrier, which must be laid according to a certain technology. To do this, the roll should be rolled across or along the rafters, fastening with brackets, the distance between which should be between 30 and 50 cm. Then the master should proceed with installing the counter-lattice, which will provide a gap between the finish and the insulation layer.
Attachment and junction areas, as well as overlap points, should be treated with acrylic or butyl-based insulating tape. This approach can also be used when tearing the web. "Tyvek" - a vapor barrier that must be laidinscription inside. If you have to carry out work in attic cold rooms, which are provided with winter heating, then vapor barrier is not required for them. In this case, the membrane should be placed under the ceiling of the upper floor. The technique for wrapping exterior walls will remain the same as for roofing.
Additional information about Airguard SD5 vapor barrier
Tyvek Airguard SD5 vapor barrier has an area of 75 m2 in one roll. This building material is used for vapor barrier of frame houses and thermally insulated pitched roofs. The material retains its properties while maintaining the required level of vapor barrier.
The passage of steam is controlled, which is ensured by a high-tech layer applied to the reinforcing base. If such a vapor barrier for the Tyvek roof is used in conjunction with insulation, this will achieve a temperature and humidity balance that is close in characteristics to a wooden house.
Among the advantages of this material is the exclusion of the greenhouse effect, maintaining a comfortable temperature inside the building, protecting the building from destruction, durability, strength and environmental safety.
Additional technical specifications of the Airguard SD5
The Tyvek roof vapor barrier described above is 100% polyolefin, the thickness of which is 430 microns. One roll weighs 14 kg and measures 50 x 1.5 m.the load along and across is 200 and 170 N/5 cm, respectively. Vapor permeability in 24 hours is equivalent to 0 g/m3, while water resistance is 3 m of water. st.
Tyvek vapor barrier analogues
"Tyvek" is a vapor barrier, analogues of which are presented on the market today in a wide range. Among others, Izospan should be highlighted, which is used as a vapor barrier to protect and insulate building structures for various purposes.
Use areas for this material are:
- frame walls;
- attic floors;
- insulated sloping roofs;
- floor floors;
- basement ceilings.
This material can withstand 4 months of sunlight, is based on polypropylene, and has a vapor permeability of 7m2/hPa/mg. Another analogue is the Yutafol vapor barrier film, which is a microperforated membrane that prevents the penetration of moisture into 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 vaporize a wooden house using a Tyvek membrane, you can enjoy many benefits. For example, to eliminate the greenhouse effect, create an optimal microclimate inside the premises, increase the energy efficiency of the house and increase the performance of the structure.
