wooden floor is quite capricious in operation and put forward his defense against the negative impact of various external factors stringent requirements.Conceived in the first place is the level of humidity, since wood is very susceptible to it.But thanks to modern technology, we have presented all sorts of materials for floor vapor barrier, which are able to cope with this problem.
- The need for a vapor barrier floor
- Types vapor barrier materials
- Polyethylene film Polypropylene film
- Diffuse membrane
- liquid rubber
- Vapor floor with their hands
- Surface preparation for installation of a vapor barrier
- Laying vapor barrier material
- Proper positioning
- vapor barrier Vapor liquid rubber
Necessity floor vapor barrier
High humidity in the house has a negative impact on the wooden cover.The steam that builds up inside the premises - while taking a shower, washing or dry cleaning, from cooking and breathing of th
water gradually penetrates the insulation and wooden floor structure, eventually destroys them.Building materials start to rot, deteriorate their original performance, there mold and fungus.In addition to temperature and humidity conditions in the room will directly depend on the comfort of the people staying in it.
To avoid slow but irreversible damage to the floor structure, it is necessary to arrange vapor barrier layer that prevents the harmful effects of moisture on the wooden cover.The air thus emerges, and in the normal circulation of the room is created.
Regarding concrete floors, then they also accumulated condensate, while not causing harm.However, a vapor barrier is recommended to do in the cases with a concrete floor, as the humidity in the house will still be high.That's what is needed, steam floor.
Types vapor barrier materials
Before the start of the 21st century as a vapor barrier material is mainly used in asphalt, roofing felt or roofing material.Today, the market can boast different types of vapor barriers, many of which have been successfully protected from the impact of water.As a vapor barrier wooden floor is most often used and breathable membrane film.Of course, there are other kind of steam-insulation materials, such as a liquid rubber and bitumen-polymer mastic, but they are more suitable for the walls and roof, than sex.
This type of vapor barrier is a common and affordable.In the market you can find two types of vapor barrier plastic films: non-perforated and perforated.It is believed that the perforated film is best used for waterproofing and non-perforated - for a vapor barrier.This is due to the presence of pinholes in the film and the level of water vapor permeability.The apertured film of a high water vapor permeability.
Today, thanks to the rapid development of technology in the construction there is another kind of plastic films - a film with a reflective aluminum layer.Indicator vapor barrier such films is much higher, so they are usually used in areas with high levels of humidity and temperature - kitchens, baths and saunas.
The main disadvantage of a polyethylene film - the fact that it is easy enough to tear that requires special care when installing.Even in the case of polyethylene films with reinforcing mesh its durability and strength is not very high.Also, when a vapor barrier device floor with the help of the film is necessary to equip a ventilation gap.
Compared with polyethylene film Polypropylene has a higher strength and resistance to various weather conditions.Initially, the material is made solely from polypropylene, but it was found during the operation that the films from the condensation insulation, violates the balance of temperature and humidity, and provoking a rapid deterioration of insulation.
Today reinforced polypropylene film rolls a special layer, which consists of a rayon fiber and cellulose.It absorbs and retains large amounts of moisture, not allowing to form drops.Such a vapor barrier film at the floor in an apartment located down the anti-condensate layer and between the insulation and polypropylene film settling ventilation gap.
membrane Diffuse Diffuse "breathable membrane" are one of the most quality and expensive vapor barrier materials.Coefficient of water vapor permeability of membranes diffuse very high and is achieved by the microstructure of the material, which is a non-woven fabric made of synthetic fibers.
breathable membrane designed to protect against moisture and control its level by allowing air to pass from one side or two.On this basis diffuse membranes are divided into single and double-sided, that a certain effect on the way they are mounted, because when installing a one-way breathable membranes have to watch which way the material will be converted to the heater.
Separation breathable membranes produced and the number of layers.They come in three, two and single-layer using a special anti-condensation layer capable of accumulating moisture, and then it gradually evaporates.Among the diffuse multilayer membrane presented the so-called intelligent, which combine a quality thermal, hydro and vapor barrier, are able to regulate their own paroobmen based on the temperature and moisture level in the room.
Another advantage is the absence of diffuse membranes between insulation and ventilation gap membrane.Perhaps the only drawback of the vapor barrier material - a high price floor vapor barrier.However, all the advantages and positive features which it provides, this disadvantage nullify.
Today liquid rubber is already fairly common material for vapor barrier.Liquid Rubber is a cold bitumen-polymer emulsion, water-based.It is convenient to apply, quickly sprayed on the ground, even if it is difficult terrain, forming a seamless monolithic "rubber" carpet after curing, which is irresistible for liquids and gases and is characterized by additional hydro, thermal and sound insulation.
Modern liquid rubber come in several forms:
- emulsion, which is applied in an automated way, and is mainly used for vapor barriers of sex, which has a large area - hundreds of thousands of square meters.
- emulsion, which is applied manually on the floor area which is not more than a few tens of square meters.
Vapor floor with their hands
1. Prepare the surface for installation of a vapor barrier
When you first build a detached house with a floor vapor barrier will be less hassle.To begin with it is recommended to treat all the floor boards with a special compound against rotting, insects and pests.Particular attention should be paid to the sub-floor and joists as they are located in close proximity to the ground.Replace the joists and subfloor Organize.For him, to be laid a layer vapor barrier material.
technology vapor barrier under the floor already built home will be different.In the case of the creation of a new vapor barrier or overhaul remove the old original floor covering, remove the subfloor, remove steam and heat insulation.Ties should also be thoroughly cleaned using a vacuum cleaner or a broom.
then inspect it for defects: potholes and through small cracks and big irregularities.If such abound, that need some repairs.It is necessary to rectify the tie that there is no direct hit of moisture from the soil through the through cracks.As an additional protection against water can be installed waterproofing: if you use a waterproofing material in rolls, then put it overlaps, joints glued special tape or ordinary adhesive tape.
Then install the lags in the design position.Vyverte each level logs to a perfect horizontal.It is necessary to handle all the wooden elements antiseptic that protects the wood from the appearance of mold and mildew, as well as damage by insects.Then, the surface must be thoroughly cleaned from dust and debris.And only after that you can lay a vapor barrier layer.
2. Laying vapor barrier material
special knowledge when installing vapor barrier material is not required.For a vapor barrier floor with their hands made to use mainly film materials, representatives of which are membrane Izospan and steam floor Izospan V. lay a vapor barrier on the supporting frame, and the need to ensure that the film webs to each other went overlap.The width of the overlap should be 15 - 20 centimeters.
Krepjat vapor barrier galvanized nails or construction stapler, but manufacturers are mostly advised to use a special adhesive tape that allows you to create a coating that is completely devoid of any gaps.To avoid problems with the method of fixing, it is necessary to specify in advance when purchasing a vapor barrier material.
remote places, railings, junctions and other relief sites to better handle Obmazochnaya bituminous materials as quality bed and securely film vapor barrier in this area is difficult.After laying a vapor barrier layer on top of it put a heater.You can use any insulation material: mineral wool, expanded polystyrene or foam.The main thing is that the material tightly to the logs, leaving no gaps, and gaps between the insulation and the joists.
top of thermal insulation layer should be the same way put another layer of vapor barrier membrane, which will prevent the penetration of moisture Insulating material inside the premises.Always make sure that the vapor barrier material located lap.Then you can glue joints and safely proceed to the process of the main deck floor.When installing floorboards, note that by paroizolyatora to the floor you must leave a gap of 1-2 centimeters.
3. Proper positioning of the vapor barrier
to determine which side is necessary to lay a vapor barrier, you have to understand where it comes from pairs:
- If you use this installation a two-layer film, it strictly follow the instructions of the floor and a vapor barrier Lay it smootha party that does not allow moisture to get into the insulation to insulation materials and rough, retains moisture, - into the room.
- When installing a vapor barrier foil necessarily need to take into account the important point: it should be up to place the metallized side to the heat pushed herself into the room, lay her butt prokleivaya with the aluminum tape.
- Paroizolyator, polypropylene, which has a one-sided laminated cover, put a smooth surface to the insulation, a braided outside.
- If you are using a three-layer film with reinforced mesh, which is laminated on both sides with plastic wrap, then the material must adhere to the heat insulator and have a ventilation gap of 2-5 centimeters.
liquid rubber polymer-bitumen vapor barrier material for the floor-called liquid rubber is applied to the surface as shown in the video on the floor vapor barrier.To begin with opened bucket of mastic, then the content is mixed and applied to the substrate using a brush or roller.Drying this material forms on the floor of a rubber film that adheres firmly and fully repeats the topography.
coating did not skip any moisture in its form in the form of water from above, from below in the form of steam.Consumption of liquid rubber to create a vapor barrier on the wooden floor is 1 - 1.5 kilograms per square meter.For the purpose of sealing its consumption should be increased to 3-4 kilograms per square meter.Film thickness - about 0.7 millimeters.
So, if you properly equip the floor vapor barrier, keeping all the artless stacking technology, as well as protecting the insulation from mold and rot, you will be able to avoid a significant loss of heat, and heat insulation will be at altitude.This "sandwich" will provide your home and its occupants comfort and significantly extend the life of your floor.