Thermal insulation on the outside premises ensure correct location dewpoint
Dewpoint - value of the temperature at which condensation occurs. The point of this point can be located in the interior walls, inside or outside it. Its coordinates depend on the physical properties of the wall material, the thickness of layers as well as internal and external temperature and humidity.
Important!The position of the dew point will be more optimal, even in a fully non-insulated wall, than that which is insulated from the inside only.
Proper location of the dew point (outside wall) can be obtained only when mounting insulation walls of the house outside, selected taking into account the properties of the material and heat calculation of thickness.
The better insulate the wall outside
Each of the types of advanced insulation for the walls of the house from the outside has its own features and price range. But their main differences are:
- Low thermal conductivity;
- minimum value of water absorption and water vapor permeability;
- the ability to adjust the indoor climate;
- high levels of sound absorption;
- environmental friendliness;
- fire and fire safety;
- chemical resistance;
A comparative table of the thermal conductivity of building materials
- resistance to biological and mechanical influences (mold fungi, insects, rodents);
- strength and durability;
- elasticity and no shrinkage;
- low weight;
- can be mounted without any seams, joints, cavities;
- the ability to fill complex and hard to reach areas;
- installation convenience.
It is also important to take into account the way in which the consumer prefers to mount the outside insulation for the house walls. Video showing the possibility of independent work performance (and other manuals) in our time can be found sufficient.
Optimum insulation for walls are selected according to the material of construction
Water absorption and water vapor permeability are taken into account to ensure the maximum protection of facilities from water and are selected taking into account the peculiarities of climate and depending on the installation method. The thermal conductivity is used to calculate the required thickness of thermal insulation material.
The following types of insulation are used most often:
- polystyrene (polystyrene);
- extruded polystyrene (Epps, penoplex);
- polyurethane;
- mineral wool;
- Basalt heat insulation material;
- Liquid insulation.
Foam - a popular material for thermal insulation of walls of the house from the outside
Styrofoam (polystyrene)
Polyfoam (expanded polystyrene) - one of the modern polymeric insulation for the walls of houses and is used as such in virtually all areas of the construction industry: civil and industrial.
First of all, this material has low thermal conductivity coefficients (from 0.037 to 0.052 W / m * K, depending on the density) and water absorption, resistance to biological and chemical attack, and high soundproof and waterproof properties. It belongs to a group of environmentally friendly materials and is durable enough: its service life exceeds 50 years.
Fact!Foam layer thickness 50 mm degree of conservation of heat equivalent to the wall in a half-brick.
Polystyrene foam - easy to install and has a small weight
Among its other advantages can be distinguished flexibility and light weight. This helps reduce the cost of delivery and installation, ease of work, decrease the load on the walls, which, in turn, reduces the need for further strengthening the foundation.
The downside is its combustibility of polystyrene, but the low price makes it possible to insulate all the foam walls of the house outside.
Extruded polystyrene (Epps, penoplex)
Extruded polystyrene (penoplex) - one of the latest generation of thermal insulation materials. It is manufactured using graphite in the form of nanoparticles, which increases product durability and energy efficiency.
Wall insulation followed Penoplex veneer siding
The thermal conductivity of insulation penoplex varies between 0.029 - 0.031 W / m * K. It is resistant to mold, chemicals, insects and rodents, and is an excellent sound insulator.
This enables the use of both Penoplex insulation from the outside: for walls of wooden houses and other buildings, and inside: floors insulation (Especially when "warm" flooring), basements, balconies and loggias.
Polyurethane foam
Polyurethane - the form of plastic foam with a cellular-structure. Weight of cells filled with air, is 90% of the total weight of the product. Due to this, the thermal conductivity value in the polyurethane foam is one of the lowest - from 0.023 to 0.041 W / m * K.
Liquid polyurethane foam creates a hermetic coating with excellent vapor and waterproofing
Polyurethane foam has a high level of adhesion to all types of surfaces: concrete, brick, wood, metal - due to what creates a hermetic coating to guarantee excellent steam and waterproofing.
Seamless application method (with a compressor and a hose) and makes high elasticity polyurethane zaduvnoy indispensable material for insulation with insulation on the outside walls of buildings complex shapes and frame houses. Insulation for walls outside zaduvnym method can be applied at temperatures up to 100 ° C, the service life - up to 30 years.
Liquid polyurethane can be used as zaduvnogo insulation between the building wall and lining
The only disadvantage of the material is its high cost and the need to use expensive equipment for installation.
Mineral wool (basalt insulation, rockwool, glass wool)
Mineral wool - the product processing slag (iron and steel industry waste) or rocks: basalt, and dolomite. Different strength, incombustibility, durability, environmental friendliness, flexibility, high degree of sound absorption, ease of installation and low cost. Thermal conductivity of this material is in the range 0.034 - 0.037 W / m * K.
Mineral wool different fire resistance, environmental friendliness, high absorption and low cost
To work on the mineral wool insulation is used in the form of basalt slabs or rolls with a wide range of sizes. Mineral wool is used as insulation for the walls of the house outside. Dimensions of produced slabs can be:
- 1000 x 600 x 50 mm;
- 7000 x 1200 x 50 mm;
- 9000 x 1200 x 50 mm;
- 10000 x 1200 x 50 mm;
- 10000 x 1200 x 100 mm.
Styrofoam plates can have a docking slots for easy installation
Basalt heat insulation material is used in buildings for any purpose, in particular - to insulate the country, wooden houses and buildings of timber, brick or foam blocks. To conduct work with this material is possible at a temperature ranging from 220 ° C to + -60ºS that uniquely convenient for mounting on the outside wall. Insulation in the country, wooden houses, brick or foam blocks, garages, warehouses and other buildings - this is an incomplete list of possibilities of application of mineral insulation.
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Most preferably, the mineral wool or basalt plates during assembly insulation for the walls of the house from the outside under the siding.
Most preferably, the mineral wool to insulate the house from the outside, followed by lining siding
Also popular application of mineral wool (along with polyurethane foam) for creating zaduvnogo insulation. In this method, using a compressor installation material is blown between the wall of the house and finishing facadeWhich serves as both formwork.
liquid insulation
Liquid insulation materials can be called a new generation of heaters. Perhaps their use for thermal insulation and the metal portions (tubes or scaffolds) and as insulation foam blocks of houses. Outside, on the walls, the ceramic multi-component substances look like acrylic paint.
However, they differ from the paint vakuumizirovannyh voids content (up to 80%), due to which the heat insulator acquire properties.
Liquid heaters are similar to acrylic paint
Interesting!In liquid heaters record low heat conduction coefficient (from 0.0011 to 0.0015 W / m * K). For comparison, - the thermal conductivity of the vacuum is 0.
When liquid consistency, these materials do not require professional skills and sophisticated equipment for use on any surface: concrete, brick, metal, wood. They are applied with tools to paint things: brush, roller or airless spray guns - and fill all the voids and cracks.
After a 6-hour drying of whole formed that is highly resistant to mechanical stress coating.
Fixing the sheets of foam or styrofoam performed special fasteners like "fungus"
Due to the low thermal conductivity of liquid insulation for walls of the house help to reduce heat loss even if applied a thin layer on the outside. They protect the surface from weather influences (operational temperature range - -60 to + 260 ° C), solar radiation and rain, and the metal part - from corrosion.
Interesting!Water absorption of most liquid heaters for 24 hours does not exceed 0.4% by weight.
The coating liquid insulation is one of the effective ways to prevent the formation of condensate and protect industrial or residential premises and on the freezing of all kinds molds.
Methods of insulation of walls outside the house
Most modern heaters are versatile and can be installed outside the house on any walls: wood, lumber, concrete blocks, red or white brick; as well as under a variety of types of external decoration of buildings: Plaster, vinyl siding, Decorative brick, stone facade panels. Check all features, you can select the appropriate type of insulation of the walls. Outside of the timber are insulated similar buildings made of other materials.
Based on the diversity of existing thermal insulation materials, for each type of wall in conjunction with its finish, the best option is chosen insulation installation:
- Installation of insulation under the plaster.
- Three-layer unventilated wall.
- Ventilated facade.
Examples of the insulating walls, followed by lining brickwork
Installation of heat insulation plaster
When installing insulation under the plaster for the walls of houses outside more often as a thermal insulator used a polystyrene foam insulation plates basalt, mineral wool sheets or insulation penoplex.
Insulation fixed to the walls of the house from the outside using an adhesive solution and strengthens glass cloth reinforcing mesh. Special fixtures such as "fungus" performed additional fixing sheets or foam plates basalt insulation. To the outside walls of the house as a finishing plaster is used (method "wet facade") or facing materials.
insulation system "wet facade"
Three-layer unventilated wall
Three-layer unventilated wall is formed by the walls of the house from the outside, insulation and facade finishing, laid out in view of the gap for air. This method is used when installing the finished wall outside the house under a brick. Heaters of various kinds used in this embodiment, including insulating materials for zaduvnogo mounting.
This method is used for insulating various structures as brick or foam concrete as well as wood or lumber.
Non-ventilated façade with insulation zaduvnym
Exterior finishing is performed facing slabs, decorative or building bricks.
Ventilated facade
Insulation, insulation for ventilated façade is assembled from the following layers:
- waterproofing;
- insulation;
- windscreen;
- overcladding finish (wall paneling, siding, panels).
The principle arrangement of a ventilated facade
Installation of a heater consisting of a ventilated facade is the most preferred embodiment, since the thermal loss is minimized due to the windshield. Also waterproofing provides additional surface protection against moisture walls.
Using ventilated facade possible with most types of structures, materials and configurations of external walls and varieties facade finishing. The most widespread variant of this when installing insulation for the walls of the house from the outside under the siding. Also, this installation method is best for thermal insulation on the outside walls of wooden houses: from logs or from a bar.
Insulated walls can coat the material to suit all tastes
Regardless of the variety and type of material used as an insulator, each of said mounting possibilities must to cope with the main task - insulation space, walls, protected from wind and drafts, as well as preserving heat.
The undoubted advantage of the majority of the materials mentioned in the article is the opportunity to make their installation as insulation walls of the house outside. Photos and videos, as well as other instructions will be at the same time very useful.