"Tyvek" (vapor barrier): characteristics, installation

Steam insulation materials today are indispensable for construction work. One of the most popular and common are membranes, because they are able to protect the structure from moisture and wind, creating a comfortable microclimate inside the building. On the market today, a huge number of building solutions, but the "Taiweck" - vapor barrier, which is considered one of the most effective.

Description

If you want to choose a high-quality vapor barrier, then it's worth getting acquainted with products under the "Tyvek" brand, which has a non-woven structure. These membranes are composed of low-pressure polyethylene, and are manufactured using high-speed fiber forming technology. Connect the elements to each other under the influence of high temperatures.

This technology provides enhanced protective properties, guarantees vapor tightness and high strength. The characteristics allow the use of "Taiwek" membranes to protect the exterior parts of houses, the insulation of roofs and for the temporary covering device in case of construction delay. To obtain the best effect, the material is recommended to be used in combination with fibrous thermal insulation and waterproofing membrane.

Key Features

"Tyvek" is a vapor barrier, which differs favorably from similar materials like "Yutofol", "Isospan" or "Nikobar". Among the advantages are:

• No need to provide ventilation clearance during installation;
• The ability to remove moisture from thermal insulation;
• Extended service life of timber structures;
• Maintenance of the required level of vapor barrier with preservation of vapor tightness.

This material for half a century is able to perform its functions without loss of quality.

Specifications

The vapor barrier "Tyvek", the characteristics of which will be presented below, is offered for sale in several varieties, each of which has its own characteristics. You will be able to find seven membranes that are manufactured by the manufacturer under the following designations:

1. Soft.
2. Supro.
3. Solid.
4. Solid Silver.
5. Housewrap.
6. AirGuard SD5.
7. AirGuard Reflective.

The most important characteristic in this case is vapor permeability. For the first two solutions, this parameter is 0.02 Sd (m). The third and fourth variants have a vapor permeability that is 0.03 Sd (m). The fifth, sixth and seventh variants of 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, the layer is only one; In the second and sixth - two layers. And only the last version of the membrane differs by the presence of 4 layers. All these solutions have a wind resistance, but the operating temperature varies from -40 to +100 in the 1st and 5th variants, whereas in the latter two the range is somewhat smaller and ranges from -40 to +80 ° C.

The last two membranes are designed for laying on the wall and roof, whereas the first membrane can be used exclusively for the roof, but the fifth one is for the walls. Each of the solutions presented by the manufacturer can be used for more than 50 years.

Mounting recommendations

"Tyvek" - a vapor barrier, which must fit into a certain technology. To do this, the roll should be rolled across or along the rafters, by fastening with clamps, the distance between which should be a limit of 30 to 50 cm. Then the master should proceed to install a grating, which will provide clearance between the trim and the insulation layer.

Zones of fastenings and adjacencies, and also places of overlapping should be processed by an insulating tape on acrylic or butil basis. This approach can be used even when the canvas is torn. "Tyvek" is a vapor barrier, which must be inscribed inside. If you want to work in attic cold rooms, which are provided with winter heating, then the vapor barrier is not required for them. In this case, the membrane should be placed under the ceiling of the upper floor. Technology for wrapping external walls will remain the same as in the case of roofing.

In addition to the Airguard SD5 vapor barrier

The "Taiwec" vapor barrier Airguard SD5 has an area of 75 m ² in one roll. This building material is used for the vapor barrier of frame houses and heat-insulated pitched roofs. The material retains its properties, while maintaining the required level of vapor barrier.

Passage of steam is controlled, which is provided by a high-tech layer applied to the reinforcing base. If such a vapor barrier for the roof "Taiwek" will be used in conjunction with a heater, this will achieve a temperature-humidity balance, which is close to the characteristics of the wooden house.

Among the advantages of this material should be highlighted the exclusion of the greenhouse effect, maintaining a comfortable temperature inside the building, protecting the building from destruction, durability, strength and environmental safety.

In addition to the technical characteristics of the Airguard SD5

The above-described vapor barrier for the roof of "Tyvek" is 100% 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. Steam permeability in 24 hours is equivalent to 0 g / m ³ , while water resistance is 3 m of water. Art.

Analogues of the vapor barrier "Tyvek"

"Tyvek" is a vapor barrier, analogues of which are presented today in the market in a wide range. Among others it is necessary to allocate "Izospan", which is used as a vapor barrier for the protection and insulation of building structures for different purposes.

Areas of use of this material are:

• Frame walls;
• Attic floors;
• Insulated sloped roofs;
• Interfloor overlappings;
• Socle floors.

This material is able to undergo sunlight for 4 months, the basis is polypropylene, and the resistance to vapor permeation is 7 m ² / h * Pa / mg. Another analogue is the vapor barrier film "Yutafol", which is a microperforated membrane, which excludes the penetration of moisture inside the premises, while it does not prevent the evaporation of the condensate. The membrane is sold in rolls and is offered for sale in several varieties: "Yutafol", "Special" and "D Standard".

Conclusion

If you make a steam insulation of a wooden house using the "Taiwanque" membrane, then you can take advantage of many advantages. For example, to eliminate the greenhouse effect, create an indoor microclimate, increase the energy efficiency of the house and increase the performance characteristics of the structure.