The trend of insulation of the facade with polystyrene appeared relatively recently. Today, one can not imagine the most effective insulation, sound insulation of walls, than with foam sheets. With the help of foam plastic it is possible to protect the walls from the destructive influence of the environment.
The material perfectly preserves heat, prevents external noise from entering the room. In addition, the foam plastic can be decorated with any decorative plaster, so the facade of the house will be aesthetic.
The main purpose of preparing the surface of the facade is leveling the plane and maximum cleaning. It is important to give the wall an ideal evenness, but the differences can be up to 2 cm. Walls should be cleaned of construction materials, dirt, grease and chemical stains. If there is a source of contamination – it should be removed, for example, rusty rain pipes.
The painting layer on the wall should also be removed to a rough surface.
To check the cleaning level, walls should be laid flat on the palm. Shedding of sand, dust will show that the surface is not sufficiently cleaned. After the stripping phase, a deep-effect primer is used. For application, a cleaned brush is used. If the wall is sufficiently crumbled, then it should be covered with a moist medium from the sprayer.
When choosing a conventional foam for facade cladding, its pre-preparation is not required. The only disadvantage of the extrusion foam is a smooth surface, which prevents the solution from fixing. It is necessary to purchase a foam with a corrugated surface. Processing of foam sheets is performed from two sides with the help of the following tools:
- Roller with a needle nozzle, which is used for drywall.
- With the help of a clerical knife, grooves are made.
- Rigid iron brush.
- Let’s move on to the main process
Slopes, external parts must be installed before the foam is fixed to the wall. If there is a window sill protruding from the plane, it is recommended to insulate the given place. To do this, use an adhesive solution and pieces of foam. This will reduce the noise level from the metal surface, exclude condensation.
Now proceed to the sticker of foam sheets. Initially, the perimeter of the facade is made with a starting bar. It will serve as a kind of stopper that will not allow the foam sheets to move out when hardening. If the wall has a small drop in the plane to 1 cm, then the mortar is spread by a trowel on the foam. For large differences in evenness, the solution is applied to the wall before alignment in the divergence areas.
We nail the foam sheets. After three days, it is possible to fix the insulation. The space between the joints is faded, the bulging edges are removed with a clerical knife.