Thermal insulation of the facade with foam: assembly technology

Penoplex is a panel of extruded polystyrene. The material has low thermal conductivity, hydrophobic and vapor barrier properties and durability for protecting buildings from the inside and outside. When the facade is insulated with foam, the technology provides for the following:

• Choice of slabs for thickness taking into account climate conditions;
• Ensuring a sufficient density of adherence of the material to the walls;
• Thermal insulation is made in a complex for the whole building.

Advantages of external insulation

1. The service life of the building is increased, since the heater takes on the thermal effects of the external environment. It is especially important that the zero point be as close as possible to the outside of the wall.
2. The useful volume of premises is saved.
3. The walls do not form moisture.

It should be noted the high level of fire hazard of the material. In this regard, all places of contact with electrical wiring should be reliably protected from the possibility of a fire.

Another disadvantage of the penopolis is the inability to pass air. If the room is closed to them from all sides, it turns into a thermos. Therefore, there must be effective ventilation.

A similar material is foam. It is more fragile, and its thermal properties are the same. When the facade is insulated with polystyrene foam, the stages of work are the same as for penoplex.

Mounting recommendations

At a large thickness, the foam is stacked in several layers. The technology of installation for insulation of the facade provides for the arrangement of stitches in a staggered manner.

Depending on the place of laying, the types of sheets for foundation, wall and roof are distinguished. Also there is a kind "special" for industrial application and "Comfort" for private constructions.

Penoplex "Comfort"

Universal material is suitable for insulation of facades, attic floors, floors, roofs and interior decoration of buildings. On the "Comfort" plates for the first time, a L-shaped edge joint was created to eliminate cold bridges, due to the high contact density. Work on the insulation of facades immediately diminished, due to the fact that there is no need to seal the slots.

Chemical inertness, lack of moisture absorption and high compressive strength and bending ensure the durability of products. In this case, the density of the material is in the range 25-30 kg / m ³ , and the thickness of the slabs is from 20 to 100 mm.

Plates with high flammability are not used for interior finishing of industrial premises.

Penoplex "Foundation"

Plates are used to insulate the plinths, foundations and ceilings of the cellars. The material with increased density (about 30 kg / m ³ ) is used for the thermal insulation of the floor under the cement screed, due to the higher compressive and flexural strengths than the "Comfort" type.

The combustibility of the material for external insulation of the foundation and the socle is of no particular danger, especially when it is covered with soil.

Penoplex "Roofing"

With a high mechanical load inside the slabs, the thermal insulation panels are made with a density that is not inferior to the basement heater. Water permeability and thermal conductivity are also low. In a house with a thermal insulation of the roof, foam in summer is cool, and in winter it is warm.

Facade Penoplex

Plates are used to protect the facade from the outside, as well as for placing inside the hollow masonry of brick, sandwich panels and blocks. They have good plastering solutions. The density of the material increases with a decrease in the thickness of the plates. Good mechanical characteristics allow the material to be used to insulate the plinths and foundations.

Preparing for installation

Before we warm the facade with foam, preparatory work is carried out. First, the surface of the outer wall is cleaned of paint, plaster and impurities. Cracks are closed in the door and window blocks. Metal parts are coated with paint from corrosion, and wooden parts are made from rotting. Then, preparatory work is carried out to remove the protrusions, seal the cracks with depressions, strengthen the slopes on the openings. The surface of the wall is treated with a penetrating primer, which improves the adhesion of the material to the fixing compounds. It may be necessary to build scaffolds or other means to work at altitude.

The slabs are treated with a plasterboard roller with sharp protrusions or a metal brush. The presence of small depressions contributes to better adhesion to walls and plaster.

Thermal insulation of the facade with foam: an algorithm of actions for a stone house

In the construction of heat insulation slabs nailed, glued or do it all in a complex. First, the facade insulation is calculated, and then the panels of the required thickness are selected.

The laying starts from the bottom corner of the wall, where the metal start profile is firstly installed horizontally. It is fixed with dowels on the cord-cut line of installation. Tools require spatulas of different sizes. Can be used toothed, if the difference on the wall exceeds 10 mm. The solution is better to be applied to the wall taking into account the irregularities and then tightly press the panel against it.

Note! Mounting mixtures for slabs can be of different purposes and differ in properties, for example, for gluing to a wall or sealing joints. Materials are applied strictly according to the manufacturer's recommendations.

The insulation of the walls of the facade of the building with a foam will be more qualitative if the glued panels are additionally nailed to the wall. The density of adhesion in this case will increase. This is not done before glue dries. The fastening is made with plate dowels made of plastic.

Nails of the same material are clogged in them. Of metal, it is better not to use them, since cold bridges are formed .

The holes in the wall are drilled 2 cm deeper than the length of the dowel. It is selected for the thickness of the plate and the layer of the assembly mixture. The plug is inserted into the hole and adjusted with a hammer to one level with the wall so that the outwardly protruding cap does not interfere with the subsequent plaster. Then the assembly plastic nail is clogged.

The joints are sealed. If the width of the slit exceeds 5 mm, fill it with a mounting foam. But this is how old slabs are treated. Modern designs are executed figured and form a dense connection without gaps.

A layer of glue is applied from the outside and a glass mesh is installed. It is spread with a spatula until it is completely immersed in the solution. The places around the perimeter for docking remain untouched. Then the next grid is overlapped with an overlap of at least 15 cm and the process is repeated. For thick plaster layers (12-30 mm) a new layer is made from a primer, a cement-sand mixture, onto which a metal mesh is laid, and then a sand-lime mixture and finishing plaster. Before each application of the plaster layer, a penetrating primer is used, which increases the service life of the coating.

On the plastered surface of the wall is applied a finishing coat of paint type or glued tiles. Installation is difficult and requires high qualification of performers.

On the fixed plates it is better to mount the external protective masonry, which is also finishing. Its connection with the wall is made through the panels of the insulation with flexible connections. Finishing has high resistance to atmospheric and mechanical influences.

Warming of the facade with foam: technology for a wooden house

The wooden house itself keeps the heat well. Additional insulation is required when the logs cracked, cracks appeared, joints were broken.

When a wooden house is used to insulate the facade with foam, the technology is slightly different from the stone one.

Preparation of the facade consists in removing the remains of old coatings, salt deposits and removing protrusions, as well as mold and fungal lesions. The walls must be securely plastered. Then the wood is treated with fungicides. The walls are leveled by the plumb line. Metal structures are cleaned and coated with paint against corrosion.

The gas tightness of the penoplex is an important factor to consider when insulating a wooden house. It is not allowed to lay slabs directly on the walls due to the danger of accumulation of moisture on them, leading to decay of wood. In addition, the important advantage of a wooden house - the ability to "breathe" through walls is lost.

The constructions are erected with the ventilation of the facades, where an air gap is created between the walls and the heater. For this, the house is covered with a 50x50 mm block from the outside, between which the insulation plates are laid. It is better to use a profile frame, which rests exactly on the entire surface. It is important to pave entire openings around whole slabs, not waste, as many do with the purpose of saving. From below is attached a horizontal bar, on which the insulation will be based. Logs of uneven logs are provided with ventilation conditions themselves. The beam is nailed to the rake and only then the insulation is laid. Outside, the finishing is done by brick, siding or other materials.

Prefabricated houses

In frame houses, penokleks fit in the same technology, but inside the walls are used sheets of gypsum board, particle board, etc. It is necessary to pay attention to the insulation of the façade from the pox with penokleksom. Technology for grades 1-3 is similar to wood packing, as they are all sensitive to moisture. Mark 4 is heavy-duty and waterproof and any of the above methods can be used here. Also water resistant are sandwich panels. Already at the factory a heater is placed between two plates. Builders can only build a house as a designer in a few days. The photo below depicts the warming of the façade of the pox with penoplex. The technology involves the use of sandwich panels in the process of erecting a house. After there is no need to sheathe it with a heater.

Ways of installing insulation from the inside of the house remain the same, including the most important - the creation of vented gaps near the walls. On the inside, plasterboard, decorative panels, lining are used.

The right solution is to warm not only the walls, but also the floor and ceiling. This requires a much smaller layer thickness than sawdust or mineral wool. In this case, you can lay it from the bottom of the ceiling, if the height of the room allows. Here the installation of the battens will not require much effort.

Conclusion

Thermal insulation of the house with foam foam allows it to be reliably protected from climatic influences and rapid wear. The material is ecological and quality. If you make the facade insulation with foam, the technology is not difficult, but it should be done correctly. The cost of insulation is quickly compensated by the savings in heating. The material is well attached to many building materials and is resistant to moisture.