Application of the facade insulation technology of the house with expanded polystyrene is an affordable and effective method of thermal insulation, which allows to significantly reduce the cost of utilities.
In addition, expanded polystyrene is the material with which you can work independently and without special skills.
A thermal insulation based on polystyrene is produced in the form of sheets of square or rectangular shape. Externally resembles the usual foam.
But unlike it has a more rigid and dense structure, as well as special connecting grooves along the perimeter - grooves.
Due to them, when the facade of the house is insulated with extruded polystyrene foam, a plane is obtained without gaps between the sheets, which in turn lowers the heat transfer coefficient of the walls.
In addition to thermal insulation of facades, sheets of expanded polystyrene are often used to insulate interfloor overlappings, plinth, foundation, balconies and loggias.
For each specific case, choose products with different thickness and density, not forgetting that the sheets of expanded polystyrene are denser and thicker, the thermal insulation of the material is higher.
And if the walls of the facade in themselves have a dense structure, it is not recommended to conduct their insulation with expanded polystyrene with a high degree of density.
Walls will be difficult to breathe, which threatens the formation of condensation and subsequent destruction.
Contents:
- Advantages of using expanded polystyrene
- Advantages of using expanded polystyrene
- How to prepare for wall warming
- Installation of slopes and exterior castings
- Installing expanded polystyrene on the facade of
- Facing a warm facade of the house with
siding. Advantages of using expanded polystyrene
. As practice shows, the insulation of the facade with expanded polystyrene has a lot of positive moments. The light weight of the material does not require high load-bearing properties from the cladded facade.
In addition, the transportation of products to the forest passes without the use of special mechanical force.
Also possible is the technology of insulation with expanded polystyrene sheets of the new facade of the house.
The material is endowed with good compressive strength and rupture, which is very important when the construction starts to sit down. In this case, do not be afraid that the material is deformed and torn.
In addition, expanded polystyrene has a high resistance to moisture and temperature changes.
In the process of insulation of the facade, the sheets are fixed to the glue and fastened with dowels-umbrellas.
Additional fasteners are necessary, since, unlike the properties of expanded polystyrene, it does not succumb to moisture, the adhesive composition under its influence loses its strength with time.
Of the drawbacks that have any insulation, it is worth pointing to the deformation of the material, as a result of the point effect of high temperature. And also a low level of noise absorption and vapor permeability.
How to prepare for the warming of the walls
Before starting to scale the thermal insulation of the facade with extruded polystyrene foam, estimates are developed.
Prepare the surface of the exterior walls of the house, with their own hands they cover window slopes and doorways.
For the convenience of the work process and obtaining the desired quality of the heat-insulated surface, the base base is aligned.
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The noticeable differences due to protrusions and depressions on the facade, to avoid breaks, are minimized, to about 1.5 cm.
The facade is equipped with guide beacons, they are used to level out plaster.
If the facade has exfoliated areas of the old coating, then they are cleaned. After all, the strength of the two bases will depend on the finish.
In case the finishing layer of the wall was made using pentaphthalic enamel paint, it must be completely removed.
If the quality of the facade is close to the ideal: when the hand is handled on the wall, the palm remains clean, without traces of plaster, then it is possible to conduct insulation on an unprimed substrate.
When shedding sand from the walls, it is recommended that they be thoroughly cleaned. Then plaster should be primed with the help of a sprayer or a brush, with their own hands to conduct surface plastering.
Installation of slopes and external casts
After the relief is over, we can not go directly to the insulation, as it is necessary to devote some time to installation of slopes on door and window openings, as well as installation of external window sills.
The width of the sill or outer tide depends on the thickness of the expanded polystyrene sheets.
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To determine the desired width of tin can be by adding to the width of the thermal insulation layer allowance of a few millimeters.
As a result, the edge of the ebb should be above the level of the surface of the insulation by 3-4 cm. Such installation technology will not allow rainwater to fill the wall under the windowsill.
If you make the ebb even wider, then during the rain in the house it will be heard how the drops on the windowsill are beating.
On the proper installation of tides own hands depends on the property of the window to prevent moisture. In pvc windows there are special deepenings, through which it is possible to build a high-quality reflux.
With regard to the arrangement of slopes, for them polystyrene foam of a smaller thickness is purchased than for facade insulation. The sheet of the product is selected taking into account that at installation it could not be found on the glass.
As a rule, for the insulating layer of slopes remains 25-35 mm plus the thickness of the glue. In accordance with these data, you can calculate the desired thickness of products.
Installation of expanded polystyrene on the facade of
The insulation of the facade with expanded polystyrene is divided into two stages.
At the first stage, the sheets are fixed with their own hands, using adhesive, on the second stage, additional fixing of the plates with dowels is carried out.
Do this when the glue dries completely. The technology of double fastening makes it possible to ensure that the expanded polystyrene does not slide off the wall from the wind load with time.
Especially important is the fastening of material for the facades of tall buildings.
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Warming is carried out from the bottom upwards, for this it is necessary to equip the base of the foundation with guide slats( starting profile).The first lower row of products will rest on it.
If the guides do not fit the starting surface, there is a risk of sliding sheets of expanded polystyrene before the glue dries.
In addition, the second and all subsequent rows of plates are most often mounted until the first row is hardened.
For gluing boards use a simple and comb trowel. Spatula comb is used for applying adhesive to polystyrene foam, provided that the walls are well leveled.
With the usual spatula, the glue is applied to the substrate with large swings, using the "bloop" method.
Due to which it is possible to visually determine the thickness of the adhesive "blooper", and with its help to correct the unevenness.
After the glue is applied to the surface of the facade or one side of the insulation, the sheet is applied by hand to the insulated surface so that its long side lies flat.
Thus, the entire first row is executed, the second row is stacked according to the brickwork technology with offset( seaming), and it is impossible to admit that the fixing compound is between the joints of the expanded polystyrene sheets.
Observing the rules of fire safety, around all openings of the facade, the fire belts are made of non-flammable insulation, mineral wool can be used.
Then each polystyrene and mineral wool product is additionally fixed with dowels-umbrellas, which must enter the supporting base by at least 5 cm.
Adding mechanical strength to the entire insulation layer will allow the use of a perforated corner made of aluminum.
Facing the insulated facade of the house with
siding. For the purpose of additional warming and decoration of the facade of the house, they make their own lining using wooden or other type of siding.
Before constructing a lath under the siding of a wooden beam or a metal galvanized profile.
The skeleton of a lathing from a metal profile or a wooden bar under siding is necessarily mounted around door and window apertures.
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On the wall the lath for siding is fixed vertically, with a distance between the rails of not more than 50 cm.
On the layer of pre-glued to the wall of the heater it is better to collect a crate from a metal profile or a wooden beam under siding, on suspensions.
Due to the achieved clearance at the output, a facade with good ventilation will be obtained.
If the base of the wall is built of wooden material, then nails or self-tapping screws with a long rod are used to fasten the crate under the siding.
Arrangement of guiding battens for brick and stone masonry is carried out with the help of anchors or screws with plastic dowels.
Installation of wooden siding is performed from the bottom up. Pre-equipping the base with guide elements made of wood or metal.
Siding panels should be slightly shorter than the distance between the rails, besides the siding is not recommended to fasten in the sling.
Each panel is fixed to the crate in such a way that there is a gap of 1 mm between it and the fixing cap.
If necessary, the siding is shortened with a grinder or a hacksaw.
To complement the above material will enable a thematic video.
