Modern roof multi-layered. Parosolation is one of the layers in this design. And why do the roof vaporizion? She is designed to prevent the destructive action on the insulation of water evaporations, which are formed in every house where people live. After all, they cook food, erased, wash in the soul. All that rises up like a sponge, will absorb insulating layer if you do not put a reliable barrier. In the presence of vaporizolation, the cost of heating the house will decrease.

Secrets of a playproof barrier

The vapor insulation layer is required when the device and pitched roofs, and flat, regardless of the type of roofing coating. Without it, the insulation will not be able to effectively perform its functions. Arriving vaporizolation. You need to know some nuances.

Location of the vapor insulating layer

Parosolation of the roof have:

• in the house that heated under the interior decoration;
• in the premises without heating there should be two layers of vaporizolation. Isolate the inner surface and outdoor, because, usually in summer on the street, warmer than indoors and streams of vapors seek to penetrate into a cooler place, that is, in the building.

Parosolation materials

For the vaporizolation device use:

• perforated polyethylene or polypropylene films reinforced with a grid or cloth;
• membranes, the basis of which is bitumen;
• liquid rubber applied by spraying;
• ruberoid;
• pergamine;
• polyethylene film in several layers.

Requirements for Parobariare

When choosing vapor barrier, the roofing should not be acting as a chief criterion. Parchment and rubberoid, of course, cheaper than relatively recently recently appeared films. But, it is necessary to take into account the fact that if for some reason the insulation does not hold on rafters, then only a parobararier will be supported and he must withstand this load. Another: in the design of the roof, or because of the large number of snow, or a strong wind, mechanical stresses may appear and then the vaporizolation film will have to withstand the test for the tensile strength. Therefore, the main two criteria are:

• density. Unit of measuring g / m square. Only high density film will become a good barrier on the path of steam;
• the tensile strength is also with a margin.

Couples can penetrate any, even microscopic gap. In connection with this ability, elevated requirements for the places of adjustment of vapor insulation material are presented. By performing a roof vapor barrier device, these weak sections need to be sealed. Typically use butyl rubber tape.

Steps of floral vapor barrier

Installation of vapor barrier roofing is not complicated. From the finished heat-insulating film, it is completely able to perform himself.

Technological process

• The tape is divided into elements of the required dimensions;
• put the web with a tension in a fastest size of 10 cm minimum;
• shed side is attached to rafters, racks, in general, to everything that is under the roof. For fastening, nails or staplers are used;
• seams seams;
• pock the guide bars - carrying construction for decoration. Between the waterproofing and finishing surface there should be a gap of centimeters 5 for ventilation and for laying electrical wiring.

Separate films for steam barrier roofing instructions for installation are attached.

What can not be ignored

The smooth side of the film material chosen as vapor barrier should be tightly for the insulation. And this means that:

• rolling roll, you need to turn it polished side to the roof and bottom of the insulation;

• to make it easier to connect the cloths with each other, buying a vapor insulation film, find out which fastening material is most suitable for it;
• it is practical to use small metal racks that are stuffed on the insulation that occupy a minimum of space. Wooden - will be in disrepair faster;
• Choosing vaporizolation, it is better to stay on the products of famous manufacturers.

As you can see, the paosolation of the roof with their own hands, quite fulfilling the task. Ideal when it is well combined with insulation and finishing material.

Control over vapor barrier

Laying vaporizolation refers to hidden work. Therefore, while other works are held, it needs to be visited daily. There are methods and instruments for such control:

• the thermoemometer - measures the speed of the air flow not lower than 0.1 m per second. Control can be guided before installing the finishing layer.

• thermal imager. With his help, infrared shooting will help even when the finish is performed;
• the cheapest way to identify air flows is the use of steam or smoke;
• methods such as thermography and Blower-Door are effective, but expensive and not everyone is available.

Is it worth saving on vaporizolation for the roof?

As they say in a popular proverb: "I pay the miser twice." In the case of a roof, this expression is fair for all 100%. The big one that appeared at first glance, the cost of steamproofing for the roof, subsequently justify the nested funds. This is true if you buy a high-quality material, then the durable functioning of thermal insulation is guaranteed.

What to choose

When going to mount vaporizolation, you need to approach this issue systemically.

Store the following rules:

• high-quality film The density is not less than 50 kg per 1 m cubic - good, but this in itself does not mean anything: you need to choose the appropriate accessories: glue and tapes;
• savings for the purchase of self-adhesive tape to seal joints will result in tremendous roof repair costs;
• the tape should be double-sided, width - at least 10 mm.

To visually imagine the process of installing vapor barrier of the roof video in this case is the best option.