During the construction of a private house, particular attention should be paid to the vapor barrier of the ceiling, floor, walls and roof.If this important step will be skipped, long structural elements of the building does not serve.About that, for whatever reasons, it is important to arrange vapor barrier in a private house, and how to do it, let's talk further.
need to use protective films
special film that protects the insulation material from moisture in the "pie" of walls or roofs include mandatory.The fact is that, due to the difference in temperature, especially in winter time, outdoors and in the building, indoor walls and ceiling condensate settles.As a result of wet heat insulator and stops performing its functions.The house gets cold.In addition, moisture leads to deterioration of structural elements of the building.
Species paroizolyatorov wall
There are only three main types of films, intended to protect the mineral wool or polystyrene foam from moisture:
- Standard.The cheapest and not particularly durable type of vapor barrier.In most cases, this is the usual thick plastic film.
- foil.Plastic is more expensive, but at the same time, besides the vapor barrier, performs another function - reflects heat back into the room.The owners of country houses often interested in which way to lay a vapor barrier on the walls and ceiling.There is usually a question in relation to this species.That, in fact mounted such a film, look at below.
- membrane.Characterized by a limited vapor barrier.This allows you to control the output of the moisture out of the room.
What are paroizolyatory roofing
To prevent condensation of the walls and attic attics are commonly used membrane.You can choose:
- perforated.This kind of a film or a combination of reinforced fabric.
- three layer superdiffuzionnaya.Characterized in that it has no openings.Recommended for use in dusty environments.
- porous.It is used where there is no dust.In this film there is a huge amount of interfiber pores.Dust clogs them.As a result, the film ceases to perform its functions.
- bilayer film.Cheaper kind of sandwich superdiffuzionnye membrane.In such films, it lacks one of the protective layers.
also a vapor barrier of walls and ceilings can be used a roll or sheet material.Any difference in their value is not.
Vapor: price
Depending on the variety of material cost can be different.For example, the usual vapor barrier plastic film costs about 500 rubles per roll.Foil same version would cost around 1400-1800 rubles.Three-layer as a diffusion membrane will cost around 4000-5000 rubles.Hot steam is "Izospan" will cost around 800-1000 rubles.per roll.These prices are valid at the beginning of 2015.
Paroizolyatory "Izospan"
are not too high cost is one of the most reliable and, as already mentioned, popular varieties of protective material.There are several types of such films as steam, "Izospan":
- Class A. Designed for indoor structural elements.
- Class AS.This three-layer membrane that is commonly used in ventilated facades and roof structures for the protection of the under-roof condensation.
- Class B. Universal two-layer version of
- Class C. Hydro and vapor barrier material.
- Class D. It is also designed for hydraulic and vapor barrier designs.It can be used to protect against capillary moisture.
- Class SL.It is a connecting mounting tape.
calculation paroizolyatora
Of course, before you go to the store to buy a film, you need to make all the necessary calculations.Follow this procedure quite simple.All you need to do - is to calculate the area of all elements of design houses that need protection.The calculation is made taking into account the width of the isolating film and the required overlaps.
Installation isolating film on the walls
Next, consider how to set the protective material.Including disassemble and with what side to lay a vapor barrier."Pie" of the walls arranged in several steps:
- Pre crate stuffed to the surface.Do it usually from a bar not too large cross-section.The distance between the battens is usually equal to the width of the insulation boards.
- After the mineral wool is installed between the beams frame mounted properly paroizolyator himself."Which side of the stack vapor barrier?"- The question is really very important.Foil layer it must be directed into the room.It was under such an arrangement in the rooms creates the effect of a thermos, and the best retained heat.The most common attachment is made on a small section bars.Later they mounted fine finish.Sometimes paroizolyator fastened on special brackets or rails (on both sides of timber battens).In this case, the film is mounted close to the heat insulator.A ventilation gap is derived from the difference in the width of the timber battens and thickness of heat insulator.
Feeds paroizolyatora crate mounted on the walls in a horizontal position with overlap of about 15 cm. Sometimes perform additional sizing the junction with duct tape.
Protection roof
Next, let's look at how to lay a vapor barrier in the roof space.Setting the film in an attic or loft is made in virtually the same manner as the walls.The only insulation boards in this case are mounted directly between the rafters.Accordingly, the vapor barrier is attached to it though.This may also be used in bars, brackets or rails.
So how is done laying a vapor barrier on the roof, we are found.As you can see, the procedure is quite simple.Use paroizolyator at warming the roof and the device attic or loft a must.
protection intermediate floors
Next, consider how to lay a vapor barrier on the ceiling.Carrying out work on the installation of the film on floor slabs, should also follow certain rules.Attachment in this case, in the following order:
- on with fixing lugs on the sides (for device ventilation layer) pull isolating film.Fix it with small nails or staples.
- Modern steam insulating films differ sufficient strength, and therefore the insulation boards may be laid directly on them.
- After installation of mineral wool on top of it from the attic or the next floor pulled another layer vapor barrier.
- stuffed attic floorboards.
- ceiling boards are mounted in the lower area.
ceiling paroizoliruyut usually after walls.The overlap of the material at the corners must be at least 20 cm.
Vapor floor
Well, how to lay a vapor barrier on the ceiling, you know.Now consider how to protect the floor insulation.This work is carried out in several stages:
- between logs stacked layer of waterproofing film.
- Mounts proper insulation itself.
- top of the bars stuffed paroizolyator.
- Mounted floorboards.
rules setting sheeting
course on how to lay a vapor barrier of this type, as is known.In this case, as in all others, initially set crate.The sheets are mounted on it and secured with screws.The joints are glued shut.
Terms sizing
answer to the question of how to lay a vapor barrier, reduced including the following recommendations:
- Stela cover should be a continuous layer, leaving holes and preventing fractures.
- film installation is strongly advisable not to pull.Otherwise, it may simply be broken.To avoid this, you need to cut strips with a small margin.
- at warming the walls or roof of a building outside the vapor barrier is installed first.
- After installing the sheets or strips sure to check tightness.
- between finishing the interior decoration and the layer must be located paroizolyatora ventilation layer thickness of at least 4 cm.
important to know about what kind of party to lay a vapor barrier using a membrane film.Mount it to the inner surface of the insulation.Learn about what it is the wrong side, it is possible for the labeling.
Thus, as can be seen, steam, building structures with their own hands - a procedure is not particularly complicated.Most importantly - do observing the above recommendations.In this case, reliable protection of the insulation, as well as elements of the walls, floor, roof and ceiling will be provided.
