Tyvek soft for cold roofs. Tyvek membrane: description, characteristics and applications. Key properties of DuPontTM AirGuard® SD5

Tyvek vapor barrier is just another ordinary membrane, if you say so, you will be wrong. DuPont always leads product development scientific approach. Innovations are not empty words for the company’s engineers, and the manufacturer offers reliable materials to solve problems related to providing hydro-wind protection for a structure. DuPont™ Tyvek® offers in large assortment high-performance membranes and related products with quality that is ahead of our time.

Tyvek films are designed to serve as protection against wind loads and moisture formation processes. Membranes significantly increase the energy efficiency of the thermal insulation materials used various types. Mutual use of vapor-permeable Tyvek membranes with air- protective film Tyvek® and AirGuard® vapor barrier layer can create a comprehensive barrier to protect the building.

High-tech products under the Tyvek brand are developed taking into account modern requirements for construction efficiency. The reliability of Tyvek films is backed by practical research from DuPont - a professional in the manufacture of materials High Quality to implement effective construction work. Distinctive and important characteristic Tyvek membrane is resistant to ultraviolet rays. In addition, Tyvek films slow down the spread of fire and are excluded from the group of flammable and flammable elements.

Tyvek membranes

In order to choose the right vapor barrier or waterproofing, we need to understand the range of Tyvek films. We will try to briefly present all the pros and cons, outline the scope of application, and get acquainted with technical properties and characteristics. The instructions for use will help us differentiate between the operating conditions of Tyvek films. The installation instructions will tell you how to lay the Tyvek material correctly, specifying which side to lay.

Dupont for vapor barrier of roofing and wall structures.

1. DuPontTM AirGuard® Reflective
2. DuPontTM AirGuard® Sd5

Tyvek Airguard Reflective vapor barrier

Reflective vapor barrier will help protect and increase the productivity of thermal insulation
Tyvek AirGuard® Reflective. Reflective film is intended for interior spaces with low emissivity. Creating air gap, the Tyvek Reflective membrane helps to maintain a comfortable stay in the space of the room, since about 95% of the thermal energy is reflected back and remains in the building.

Reflective vapor barrier membrane Absolutely 100% airtight. Tyvek AirGuard Reflective - great way raise the ultraviolet index characterizing the level solar radiation negatively affecting the building materials. According to the instructions for use, Tyvek vapor barrier AirGuard Reflective is used only on interior protective work. The main task of AirGuard Reflective is to reduce the loss and blowing of warm air from the room during the frosty period.

Characteristics of Tyvek DuPont film AirGuard Reflective

• Structure: Polypropylene base, polyethylene layer and aluminum foil
• Roll parameters: 1.51 m x 50± 0.5% m
• Weight of packing: 12 kg
• Density: 148 g/m2
• Emissivity: 0.05 (indicates high reflectivity)
• Vapor permeability:(Sd) 2000 m

Regulating the occurrence of moisture

Integral flooring made with a high degree of tightness joining surfaces, effectively copes with controlling the occurrence of condensation moisture in buildings of any purpose. It is especially important to use Tyvek AirGuard Reflective film during wet areas: dressing rooms, swimming pools and kitchen spaces. It is recommended to seal joints and mounting slots using metallized Tyvek ® tape. Scotch tape, in addition, keeps well sealed joints with the floor or.

Tyvek AirGuard Reflective membrane installation

The fundamental role is played by the metallized layer of dupont AirGuard Reflective. It is she who reflects thermal energy, enhancing the effect of using thermal insulation. Thermal transfer resistance increases to 0.67 m²K/W, which leads to a reduction in costly investments in the heating process and an increase in the UF index of walls and partitions.

The Tyvek AirGuard ® Reflective membrane can be laid on any side, the main thing is to follow a reasonable rule - the reflective layer must be directed towards the room. In a word, the film should be spread with the reflective side facing the inside of the building, and a regular 25-mm sheathing should be mounted on it.

Tyvek Airguard SD5 vapor barrier

Due to convection, in other words, due to heat exchange, in the under-roof space, in partitions and ceilings, when Tyvek AirGuard® SD5 vapor barrier is used, it is possible reduce uncontrolled loss of warm air. DuPont AirGuard SD5 - serves as an internal vapor retention layer. Its installation location is behind drywall sheathing or other sheathing materials. If the joints are well sealed, the film acts as a barrier that prevents heat loss due to convection and acts as a limited vapor barrier.

Tyvek AirGuard SD5 is primarily used to maintain a stable humidity balance and to prevent the formation of condensation and dampness, eliminating the occurrence"greenhouse effect". Integral Tyvek AirGuard vapor barrier layer SD5 reduces leakage air flow, creating an effective barrier from vapor barrier material, successfully controlling air movement and moisture infiltration around the structure.

Characteristics and advantages Tyvek DuPont films AirGuard SD5

Tyvek Airguard SD5 vapor barrier has been successfully used in construction frame houses to preserve thermal insulation materials. The manufacturer guarantees that the characteristics of Tyvek material will be maintained for 10 years without changing the required level of vapor barrier.

Controlled steam passage occurs due to a technological membrane layer glued to a reinforced base. The combined use of Tyvek film with insulation in the construction of roof vapor barriers leads to the result that the balance of humidity and temperature becomes comparable to the characteristics log house. Innovative material was developed as a vapor barrier, but in fact Tyvek has additional advantages:

• Creates convection, as a result, heat loss is reduced.
• Dramatically reduces the risks associated with the formation of condensation moisture in thermal insulation.
• Translucent material makes installation work easier.
• Limits steam passage.
• Air-tight and water-resistant.
• Increased resistance to mechanical stress.
• Light weight allows for easy transportation and easy installation by one person.

Features of AirGuard SD5

• Structure: Dupont Taypar spunbond, ethylene copolymer, butyl acrylate;
• Roll dimensions: 1.51 m x 50± 0.5% m
• Bundle weighing: 8.5 kg
• Density: 108 g/m2
• Vapor permeability (Sd): 5 m

Tyvek AirGuard SD5 installation

Effectively maintains moisture balance and prevents “greenhouse effect”, perhaps if the film is Tyvek AirGuard SD5 install on the inside of the building, at the same time on outside, it is recommended to install diffusion membrane, for example Tyvek Solid.

The membrane is laid parallel or perpendicular to the rafters on the inside attic space, secured with brackets every 500 mm. For a more stable structure, it is recommended to make a counter-latten. It will also serve as an additional gap between facing material and vapor barrier. The joints and overlaps of the panels, as well as all strappings and junctions must be glued with adhesive tape: Tyvek® Acrylic Tape, Tyvek® Doublesided Tape, Tyvek® Butyl Tape. We also cover the cuts with similar tape.

When laying the Tyvek AirGuard SD5 membrane, you can do it without thinking about which side to lay it on, since it can be laid on any side. However, the manufacturer suggests giving preference to laying the material with the inscription inside the room. It should be remembered that Tyvek vapor barrier is not required in “cold” attics. If your building with a cold attic is heated during frosty periods, it is better to install a vapor barrier under the attic floor.

Dupont films for waterproofing roofs and walls

1. DuPontTM Tyvek® Soft- Single-layer film with high vapor permeability
2. DuPontTM Tyvek® Solid- Durable single-layer vapor-permeable film

• Waterproof
• Windproof
• Vapor permeable
• Serve to provide waterproofing and create moisture protection. Suitable for sloping roofs of commercial and residential buildings. When arranging the roof, it is necessary to arrange one ventilated gap.

Technical Characteristics of Tyvek Soft and Solid

3. DuPontTM Tyvek® Solid Silver- Increases the value of the thermal characteristics of structures. In addition to the main parameters, Tyvek Solid Silver minimizes heat losses, contributing to reduced energy consumption. Conceptually repeating the device of a thermos.

Features of Tyvek membrane Solid Silver:

• Foil surface;
• Capable of reflecting 85% of thermal radiation, increasing comfort during hot periods;
• Low emissivity (0.15)
• Vapor-permeable;
• High durability of the metal layer, thanks to a protective innovative coating;
• Resistance to corrosion processes;
• A slight increase in the mass of the material increased mechanical strength;
• Resistance to negative atmospheric influences.

The purpose of the film is to install water vapor barrier on pitched roofs, and attics. Tyvek spreads out Solid Silver directly onto the insulation or onto the roof sheathing. Maybe sharing membranes with thermal insulation elements in rafter structures.

4. DuPontTM Tyvek® Supro / Tape- Vapor-permeable Tyvek film Supro is considered the market leader. It serves to protect the roof from wind and rain loads, and also significantly increases the energy efficiency of the structure.

Tyvek Supro - waterproofing film. Manufactured using a reinforced lamination process nonwoven fabric based on polypropylene. An airtight and vapor-permeable membrane with increased water resistance parameters and is used in construction sites where there are sloping roofs.

The use of Tyvek Supro does not require the installation of ceiling, roof or ridge ventilation. The use of membranes, except for roofs, is allowed in grating structures, when installing flat roofs, in walls and floor elements.

Tyvek Supro - advantages

Special membrane Tyvek Supro Plus, provided in the factory with an adhesive layer, sealing overlaps occurs faster, saving time and money on buying adhesive tape. Tightness - important condition, which helps achieve efficiency in retaining warm air by reducing infiltration.

Pros of Tyvek Supro

• Excellent waterproofing index values;
• Air tightness;
• Vapor permeability;
• Create high-quality regulation of incoming air flows and humidity;
• Stable, long-term resistance to the effects of the UF index;
• Tolerance of high temperatures..

Technical characteristics of Dupont Solid Silver and TyvekSupro

DuPontTM Tyvek® Housewrap Unique vapor permeable film ideal for wall frames.

• Good vapor permeability;
• Can be laid directly on the thermal insulation;
• Serves as wind protection;
• Waterproof;
• Increases the sealing of the structure;
• Lightweight, flexible and easy to install;
• Mounted directly on the frame or on plywood sheathing;
• Withstands four months of use outdoors without losing useful qualities;
• Functional characteristics are maintained for up to 50 years of operation;
• Ideal for working with wood and steel frame buildings, can be used in conjunction with concrete structures.

A modern construction complex increasingly offers consumers interesting options frame buildings. Their advantages are obvious: quick construction, low cost, architectural diversity that masons can only dream of. Such dwellings are very popular in North America and European Union. In Russia, domestic consumers are also increasingly looking towards frame construction.

Perhaps not everyone agrees to install such a house as a permanent building, but they are certainly interested in it when it comes to construction light summer cottage house or small country cottage. In any case, during construction frame house It is necessary to provide high-quality thermal insulation. By enveloping the structure, thermal insulation materials retain heat in it. However, they themselves need protection from condensation, harmful atmospheric exposure and humidity.

Conclusions about vapor barrier

A properly selected membrane with good vapor permeability can protect thermal insulation materials. It is very important that all the steam generated inside the room escapes freely, while the vapor barrier remains dry and does not allow moisture to enter the house. If you care about the safety of your building and want it to last a long time, then the best solution Vapor barrier from DuPont will be used.

It must be said that Dupont vapor barrier films are probably the most expensive today, but they are fully justified high cost. The service life of films reaches 50 years; none of the competing companies can boast of such a period. On the other hand, the market offers products of at least well-known companies, also fighting for the title of the best. For our part, we would note as the most attractive solutions in vapor barrier devices such membranes as:,.

Of course, it’s up to you to choose in any case, but we strongly advise you not to skimp on such material as vapor barrier. A big disappointment can be the use of low-quality materials or complete failure from her. Thermal insulation materials, even very high quality ones, will not serve you faithfully for many years.

As a rule, they are greatly destroyed by contact with them. sun rays, from wind load and all the stronger from internal moisture. So, we ask you not to neglect high technological developments in the field of construction, such as Tyvek vapor barrier or, if you want your house to serve more than one generation of residents.

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Installation instructions

FILMS TYVEK

st. Severnaya, 41

Installation of Tyvek® film is similar in principle to installation of other roofing roll materials. The difference is that Tyvek® is laid directly on the insulation and truss structure roofs without a fan gap with an overlap. For this purpose, there are dotted lines on it, which are guidelines for installation (15-20 cm). During installation work, the Tyvek® membrane is attached either mechanically (nails, staples, etc.) or with glue.

Roof underlay material

Laying Tyvek® directly onto the insulation layer

Stretch and tension Tyvek® between rafters. Do not allow material to hang freely from the structure at any point. Tyvek® is tear resistant. It is recommended to lay it directly on the thermal insulation layer. Then attach the film with a transverse lathing. Place the next layer with an overlap of 15 cm, using the markings. If the required roof slope is exceeded by approximately 6°, the overlap should be at least 20 cm. In parts of roof structures where the design does not provide for the use of thermal insulation along the entire height of the rafter leg, experts recommend attaching thermal insulation material directly under the Tyvek® so that the ventilation space is below the level of the insulation.

Installation and repair of an attic in existing cold attics

Tyvek® is steam-resistant and waterproof membrane material produced by DuPont.

With Tyvek® film you can update your attic if the roof sheathing has not yet been installed. Let us describe the capabilities of this material.

Tyvek® as a temporary roof covering in case of bad weather conditions, in case of increased construction time, etc.

Tyvek® non-woven film can be successfully used for short-term roof coverings if necessary.

You need to carefully stretch the Tyvek® Solid or Tyvek® Soft film onto the sheathing or rafters. Secure it at the joints with nails, and seal the resulting seam with special adhesive tape. The area secured with nails is a particularly problematic area; moisture often accumulates there, so a seal needs to be laid under the roof. Use Tyvek® insulation to bond the film to the dormer windows. When processing protruding parts of the roof, we recommend covering them tightly with film and securing them with adhesive tape.

If the water is drained below the gutter, then you can always quickly detect problems with the roof and fix them. And in winter and spring, melting snow and ice will be discharged into a gutter on the roof.

Drainage of water into the gutter

In this case, it will be difficult to quickly detect damage or holes in the roof, which may lead to the need for long and costly repairs.

Laying Tyvek® on a layer of thermal insulation

We stretch the Tyvek® film, tightly pull it between the rafters directly onto the thermal insulation. Don't be afraid of tears - the material is very durable. We fix the film with a transverse lath. We apply the next layer so that the overlap is 15 cm. If the roof slope is 5-7° greater than required, then the overlap should be even greater - about 20 cm. If it is not planned to install thermal insulation along the entire height of the rafter leg, then you need to ensure that the ventilation the space was in any case lower than the edge of the insulating material.

Closed ridge device

Attic ridge design with insulation up to the top of the ridge

If we lay Tyvek® directly on a layer of thermal insulation material, the ridge should be closed and this film should be connected to the other end of the film so that the overlap is at least 20 cm.

Open ridge device

Making a skate using a protective belt

If the thermal insulation material does not reach the tightening level of the rafters (or the top of the ridge), the roof's tightness may be compromised, so we recommend treating the ridge with individual elements coverings.

SpecificationsTyvek®

The installation principle of Tyvek film is similar to the process of laying other roofing roll materials. Its main feature is that the film must be rolled directly onto the rafter structure and roof insulation, with an overlap, without a ventilation gap. For these purposes, there are special dotted lines on the material that serve as guidelines during installation (15-20 centimeters). The Tyvek® membrane can be secured with adhesive or mechanically using staples, nails, etc.

Roof underlay material

Installation of Tyvek on a layer of thermal insulation

Roll out and stretch Tyvek film® between the rafters. Free hanging of material from the structure is not allowed. Due to the fact that this film is tensile strength, Stroymet specialists recommend Tyvek® to their clients. According to the manufacturer's instructions, it is best to lay it directly on the thermal insulation layer. After this, the film must be attached with a transverse lathing. Using the markings, overlap the next layer of material by 15 centimeters.

If the roof slope is 6° greater than the recommended one, the overlap should be more than 20 centimeters. If the design of the roof does not provide for the use of thermal insulation along the entire height of the rafter, experts from the Stroymet company recommend attaching thermal insulation material under Tyvek® in this way so that the ventilation space is below the level of thermal insulation.

Repair and arrangement of the attic in cold attics

Tyvek® film is a water and vapor barrier membrane material manufactured by DuPont.

If the roof of your house is without sheathing, you can update the attic using Tyvek film. Learn more about the capabilities of this material.

Tyvek® non-woven film is successfully used for short-term roof covering in bad weather conditions, in case of increased construction time, etc.

• It is necessary to carefully stretch the Tyvek®Soft or Tyvek®Solid film onto the rafters or sheathing.
• At the joints, fix it with nails, and seal the seam with a special adhesive tape.
• The area secured with nails is the most problematic area, where moisture often accumulates. This is why it is necessary to lay a seal under the roof.
• Tyvek insulation is recommended to be used to connect the film with dormer window. When processing, it is recommended to first cover the protruding parts of the roof tightly with film and then secure them with adhesive tape.

Water drainage below the gutter

In the case where water is drained below the level of the gutter, you can quickly and without any problems detect and fix problems with the roof. During the winter and spring periods, ice and melting snow will be discharged into a gutter located on the roof.

Drainage of water into the gutter

With this option it is quite difficult to short time detect holes or other damage in the roof. This can lead to costly and lengthy repairs.

Laying Tyvek® on a layer of thermal insulation

• Having stretched the film, we strongly stretch it directly onto the thermal insulation between the rafters. The material is very durable, so don't be afraid to tear it.
• We fix the film using a transverse lathing.
• The next layer must be applied so that the overlap is about 15 centimeters. The overlap increases to 20 centimeters if the roof slope is 5-7° greater than the recommended one.
• If thermal insulation is not installed along the entire height of the rafter leg, it is necessary to ensure that the ventilation space is always below the edge of the thermal insulation material.

Closed ridge device

Ridge design in the attic with thermal insulation

When installing the film directly onto a layer of thermal insulation material, the ridge must be closed and the ends of the film connected in such a way that the overlap is at least 20 centimeters.

Open ridge device

Making a skate using a protective belt

If the insulation material does not reach the top of the ridge or the level of the rafters, the seal may fail. To avoid this, it is recommended to treat the ridge using separate coating elements.

Specifications

Hydro-wind protection Tyvek Soft(1.5 x 50m; 75m2; 5 kg) diffuse membrane, designed to protect roofing system from dust, moisture and condensation that appears due to temperature fluctuations. Due to the fact that the coating has a unique structure, it does not interfere with the normal release of steam outside the system. This makes it possible to increase the period of active use of the insulation and avoids creating additional ventilation gaps.

The Tyvek Soft diffusion membrane is actively used to protect insulation and other materials that are used in the process of forming a roofing system. By introducing this material into the design, you can increase the service life of wooden, metal and other elements. After all, in this case they do not come into contact with moisture or condensation.

The diffusion membrane is normally combined with various types insulation, roofing coverings. That is why it is used in the construction of roofs in various buildings, additional structures and underground premises.

Application: Tyvek Soft material can be installed on either side. Installed on the surface of the insulation without gaps.

Insulated attic

Waterproofing and windproofing walls